Rohde&Schwarz FSMU-W3, FSMU-W8, FSMU-W26 Operating Manual

Operating Manual

WCDMA BS Test Set

R&S FSMU-W3

1166.1554.03

R&S FSMU-W8

1166.1554.08

R&S FSMU-W26

1166.1554.26

Printed in the Federal
Republic of Germany

Test and Measurement Division

1166.1560.12-01- 1

R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG
Trade names are trademarks of the owners

R&S FSMU Tabbed Divider Overview

Tabbed Divider Overview

Data Sheet

Safety Instructions
Certificate of Quality
List of R&S Representatives

Tabbed Divider

1 Chapter 1: General Information

2 Chapter 2: Test Setup

3 Chapter 3: Frequency Correction of the Test Setup

4 Chapter 4: Tests on Base Stations According to 3G Standard 3GPP-FDD

1166.1560.12 RE E-1

Before putting the product into operation for

the first time, make sure to read the following

Safety Instructions

Rohde & Schwarz makes every effort to keep the safety standard of its products up to date and to offer
its customers the highest possible degree of safety. Our products and the auxiliary equipment required
for them are designed and tested in accordance with the relevant safety standards. Compliance with
these standards is continuously monitored by our quality assurance system. This product has been
designed and tested in accordance with the EC Certificate of Conformity and has left the manufacturer’s
plant in a condition fully complying with safety standards. To maintain this condition and to ensure safe
operation, observe all instructions and warnings provided in this manual. If you have any questions
regarding these safety instructions, Rohde & Schwarz will be happy to answer them.

Furthermore, it is your responsibility to use the product in an appropriate manner. This product is
designed for use solely in industrial and laboratory environments or in the field and must not be used in
any way that may cause personal injury or property damage. You are responsible if the product is used
for an intention other than its designated purpose or in disregard of the manufacturer's instructions. The
manufacturer shall assume no responsibility for such use of the product.

The product is used for its designated purpose if it is used in accordance with its operating manual and
within its performance limits (see data sheet, documentation, the following safety instructions). Using
the products requires technical skills and knowledge of English. It is therefore essential that the
products be used exclusively by skilled and specialized staff or thoroughly trained personnel with the
required skills. If personal safety gear is required for using Rohde & Schwarz products, this will be
indicated at the appropriate place in the product documentation.

Observe
operating
instructions

Supply
voltage
ON/OFF

Weight
indication for
units >18 kg

Danger of
electric
shock

Standby
indication

Symbols and safety labels

Warning!
Hot
surface

PE terminal Ground

Direct
current
(DC)

Alternating
current (AC)

Direct/alternating
current (DC/AC)

Ground
terminal

Device fully
protected by
double/reinforced
insulation

Attention!
Electrostatic
sensitive
devices

1171.0000.42-02.00 Sheet 1

Safety Instructions

Observing the safety instructions will help prevent personal injury or damage of any kind caused by
dangerous situations. Therefore, carefully read through and adhere to the following safety instructions
before putting the product into operation. It is also absolutely essential to observe the additional safety
instructions on personal safety that appear in other parts of the documentation. In these safety
instructions, the word "product" refers to all merchandise sold and distributed by Rohde & Schwarz,
including instruments, systems and all accessories.

Tags and their meaning

DANGER

WARNING

CAUTION This tag indicates a safety hazard with a low potential of risk for the user

ATTENTION

NOTE

These tags are in accordance with the standard definition for civil applications in the European
Economic Area. Definitions that deviate from the standard definition may also exist. It is therefore
essential to make sure that the tags described here are always used only in connection with the
associated documentation and the associated product. The use of tags in connection with unassociated
products or unassociated documentation can result in misinterpretations and thus contribute to personal
injury or material damage.

This tag indicates a safety hazard with a high potential of risk for the
user that can result in death or serious injuries.

This tag indicates a safety hazard with a medium potential of risk for the
user that can result in death or serious injuries.

that can result in slight or minor injuries.

This tag indicates the possibility of incorrect use that can cause damage
to the product.

This tag indicates a situation where the user should pay special attention
to operating the product but which does not lead to damage.

Basic safety instructions

1. The product may be operated only under
the operating conditions and in the
positions specified by the manufacturer. Its
ventilation must not be obstructed during
operation. Unless otherwise specified, the
following requirements apply to
Rohde & Schwarz products:
prescribed operating position is always with
the housing floor facing down, IP protection
2X, pollution severity 2, overvoltage
category 2, use only in enclosed spaces,
max. operation altitude max. 2000 m.
Unless specified otherwise in the data
sheet, a tolerance of ±10% shall apply to
the nominal voltage and of ±5% to the
nominal frequency.

2. Applicable local or national safety
regulations and rules for the prevention of
accidents must be observed in all work
performed. The product may be opened
only by authorized, specially trained
personnel. Prior to performing any work on
the product or opening the product, the

product must be disconnected from the
supply network. Any adjustments,
replacements of parts, maintenance or
repair must be carried out only by technical
personnel authorized by Rohde & Schwarz.
Only original parts may be used for
replacing parts relevant to safety (e.g.
power switches, power transformers,
fuses). A safety test must always be
performed after parts relevant to safety
have been replaced (visual inspection, PE
conductor test, insulation resistance
measurement, leakage current
measurement, functional test).

3. As with all industrially manufactured goods,
the use of substances that induce an
allergic reaction (allergens, e.g. nickel)
such as aluminum cannot be generally
excluded. If you develop an allergic
reaction (such as a skin rash, frequent
sneezing, red eyes or respiratory
difficulties), consult a physician immediately
to determine the cause.

1171.0000.42-02.00 Sheet 2

Safety Instructions

4. If products/components are mechanically
and/or thermically processed in a manner
that goes beyond their intended use,
hazardous substances (heavy-metal dust
such as lead, beryllium, nickel) may be
released. For this reason, the product may
only be disassembled, e.g. for disposal
purposes, by specially trained personnel.
Improper disassembly may be hazardous to
your health. National waste disposal
regulations must be observed.

5. If handling the product yields hazardous
substances or fuels that must be disposed
of in a special way, e.g. coolants or engine
oils that must be replenished regularly, the
safety instructions of the manufacturer of
the hazardous substances or fuels and the
applicable regional waste disposal
regulations must be observed. Also
observe the relevant safety instructions in
the product documentation.

6. Depending on the function, certain products
such as RF radio equipment can produce
an elevated level of electromagnetic
radiation. Considering that unborn life
requires increased protection, pregnant
women should be protected by appropriate
measures. Persons with pacemakers may
also be endangered by electromagnetic
radiation. The employer is required to
assess workplaces where there is a special
risk of exposure to radiation and, if
necessary, take measures to avert the
danger.

7. Operating the products requires special
training and intense concentration. Make
certain that persons who use the products
are physically, mentally and emotionally fit
enough to handle operating the products;
otherwise injuries or material damage may
occur. It is the responsibility of the
employer to select suitable personnel for
operating the products.

8. Prior to switching on the product, it must be
ensured that the nominal voltage setting on
the product matches the nominal voltage of
the AC supply network. If a different voltage
is to be set, the power fuse of the product
may have to be changed accordingly.

9. In the case of products of safety class I with
movable power cord and connector,
operation is permitted only on sockets with
earthing contact and protective earth
connection.

10. Intentionally breaking the protective earth
connection either in the feed line or in the
product itself is not permitted. Doing so can
result in the danger of an electric shock
from the product. If extension cords or
connector strips are implemented, they
must be checked on a regular basis to
ensure that they are safe to use.

11. If the product has no power switch for
disconnection from the AC supply, the plug
of the connecting cable is regarded as the
disconnecting device. In such cases, it
must be ensured that the power plug is
easily reachable and accessible at all times
(length of connecting cable approx. 2 m).
Functional or electronic switches are not
suitable for providing disconnection from
the AC supply. If products without power
switches are integrated in racks or systems,
a disconnecting device must be provided at
the system level.

12. Never use the product if the power cable is
damaged. By taking appropriate safety
measures and carefully laying the power
cable, ensure that the cable cannot be
damaged and that no one can be hurt by
e.g. tripping over the cable or suffering an
electric shock.

13. The product may be operated only from
TN/TT supply networks fused with max.
16 A.

14. Do not insert the plug into sockets that are
dusty or dirty. Insert the plug firmly and all
the way into the socket. Otherwise this can
result in sparks, fire and/or injuries.

15. Do not overload any sockets, extension
cords or connector strips; doing so can
cause fire or electric shocks.

16. For measurements in circuits with voltages
V

> 30 V, suitable measures (e.g.

rms

appropriate measuring equipment, fusing,
current limiting, electrical separation,
insulation) should be taken to avoid any
hazards.

17. Ensure that the connections with
information technology equipment comply
with IEC 950/EN 60950.

18. Never remove the cover or part of the
housing while you are operating the
product. This will expose circuits and
components and can lead to injuries, fire or
damage to the product.

1171.0000.42-02.00 Sheet 3

Safety Instructions

19. If a product is to be permanently installed,
the connection between the PE terminal on
site and the product's PE conductor must
be made first before any other connection
is made. The product may be installed and
connected only by a skilled electrician.

20. For permanently installed equipment
without built-in fuses, circuit breakers or
similar protective devices, the supply circuit
must be fused in such a way that suitable
protection is provided for users and
products.

21. Do not insert any objects into the openings
in the housing that are not designed for this
purpose. Never pour any liquids onto or into
the housing. This can cause short circuits
inside the product and/or electric shocks,
fire or injuries.

22. Use suitable overvoltage protection to
ensure that no overvoltage (such as that
caused by a thunderstorm) can reach the
product. Otherwise the operating personnel
will be endangered by electric shocks.

23. Rohde & Schwarz products are not
protected against penetration of water,
unless otherwise specified (see also safety
instruction 1.). If this is not taken into
account, there exists the danger of electric
shock or damage to the product, which can
also lead to personal injury.

24. Never use the product under conditions in
which condensation has formed or can form
in or on the product, e.g. if the product was
moved from a cold to a warm environment.

matching Rohde & Schwarz type (see
spare parts list). Batteries and storage
batteries are hazardous waste. Dispose of
them only in specially marked containers.
Observe local regulations regarding waste
disposal. Do not short-circuit batteries or
storage batteries.

28. Please be aware that in the event of a fire,
toxic substances (gases, liquids etc.) that
may be hazardous to your health may
escape from the product.

29. Please be aware of the weight of the
product. Be careful when moving it;
otherwise you may injure your back or other
parts of your body.

30. Do not place the product on surfaces,
vehicles, cabinets or tables that for reasons
of weight or stability are unsuitable for this
purpose. Always follow the manufacturer's
installation instructions when installing the
product and fastening it to objects or
structures (e.g. walls and shelves).

31. Handles on the products are designed
exclusively for personnel to hold or carry
the product. It is therefore not permissible
to use handles for fastening the product to
or on means of transport such as cranes,
fork lifts, wagons, etc. The user is
responsible for securely fastening the
products to or on the means of transport
and for observing the safety regulations of
the manufacturer of the means of transport.
Noncompliance can result in personal injury
or material damage.

25. Do not close any slots or openings on the
product, since they are necessary for
ventilation and prevent the product from
overheating. Do not place the product on
soft surfaces such as sofas or rugs or
inside a closed housing, unless this is well
ventilated.

26. Do not place the product on heat­generating devices such as radiators or fan
heaters. The temperature of the
environment must not exceed the maximum
temperature specified in the data sheet.

27. Batteries and storage batteries must not be
exposed to high temperatures or fire. Keep
batteries and storage batteries away from
children. If batteries or storage batteries are
improperly replaced, this can cause an
explosion (warning: lithium cells). Replace
the battery or storage battery only with the

1171.0000.42-02.00 Sheet 4

32. If you use the product in a vehicle, it is the
sole responsibility of the driver to drive the
vehicle safely. Adequately secure the
product in the vehicle to prevent injuries or
other damage in the event of an accident.
Never use the product in a moving vehicle if
doing so could distract the driver of the
vehicle. The driver is always responsible for
the safety of the vehicle; the manufacturer
assumes no responsibility for accidents or
collisions.

33. If a laser product (e.g. a CD/DVD drive) is
integrated in a Rohde & Schwarz product,
do not use any other settings or functions
than those described in the documentation.
Otherwise this may be hazardous to your
health, since the laser beam can cause
irreversible damage to your eyes. Never try
to take such products apart, and never look
into the laser beam.

Por favor lea imprescindiblemente antes de
la primera puesta en funcionamiento las
siguientes informaciones de seguridad

Informaciones de seguridad

Es el principio de Rohde & Schwarz de tener a sus productos siempre al día con los estandards de
seguridad y de ofrecer a sus clientes el máximo grado de seguridad. Nuestros productos y todos los
equipos adicionales son siempre fabricados y examinados según las normas de seguridad vigentes.
Nuestra sección de gestión de la seguridad de calidad controla constantemente que sean cumplidas
estas normas. Este producto ha sido fabricado y examinado según el comprobante de conformidad
adjunto según las normas de la CE y ha salido de nuestra planta en estado impecable según los
estandards técnicos de seguridad. Para poder preservar este estado y garantizar un funcionamiento
libre de peligros, deberá el usuario atenerse a todas las informaciones, informaciones de seguridad y
notas de alerta. Rohde&Schwarz está siempre a su disposición en caso de que tengan preguntas
referentes a estas informaciones de seguridad.

Además queda en la responsabilidad del usuario utilizar el producto en la forma debida. Este producto
solamente fue elaborado para ser utilizado en la indústria y el laboratorio o para fines de campo y de
ninguna manera deberá ser utilizado de modo que alguna persona/cosa pueda ser dañada. El uso del
producto fuera de sus fines definidos o despreciando las informaciones de seguridad del fabricante
queda en la responsabilidad del usuario. El fabricante no se hace en ninguna forma responsable de
consecuencias a causa del maluso del producto.

Se parte del uso correcto del producto para los fines definidos si el producto es utilizado dentro de las
instrucciones del correspondiente manual del uso y dentro del margen de rendimiento definido (ver
hoja de datos, documentación, informaciones de seguridad que siguen). El uso de los productos hace
necesarios conocimientos profundos y el conocimiento del idioma inglés. Por eso se deberá tener en
cuenta de exclusivamente autorizar para el uso de los productos a personas péritas o debidamente
minuciosamente instruidas con los conocimientos citados. Si fuera necesaria indumentaria de
seguridad para el uso de productos de R&S, encontrará la información debida en la documentación del
producto en el capítulo correspondiente.

Símbolos y definiciones de seguridad

Ver manual
de
instrucciones
del uso

Informaciones
para
maquinaria
con uns peso
de > 18kg

Peligro de
golpe de
corriente

¡Advertencia!
Superficie
caliente

Conexión a
conductor
protector

Conexión
a tierra

Conexión
a masa
conductora

¡Cuidado!
Elementos de
construción
con peligro de
carga
electroestática

El aparato está
protegido en su
totalidad por un
aislamiento de
doble refuerzo

potencia EN
MARCHA/PARADA

Indicación
Stand-by

Corriente
continua
DC

Corriente
alterna AC

Corriente
continua/alterna
DC/AC

1171.0000.42-02.00 página 1

Informaciones de seguridad

Tener en cuenta las informaciones de seguridad sirve para tratar de evitar daños y peligros de toda
clase. Es necesario de que se lean las siguientes informaciones de seguridad concienzudamente y se
tengan en cuenta debidamente antes de la puesta en funcionamiento del producto. También deberán
ser tenidas en cuenta las informaciones para la protección de personas que encontrarán en otro
capítulo de esta documentación y que también son obligatorias de seguir. En las informaciones de
seguridad actuales hemos juntado todos los objetos vendidos por Rohde&Schwarz bajo la
denominación de „producto“, entre ellos también aparatos, instalaciones así como toda clase de
accesorios.

Palabras de señal y su significado

PELIGRO Indica un punto de peligro con gran potencial de riesgo para el

ususario.Punto de peligro que puede llevar hasta la muerte o graves
heridas.

ADVERTENCIA Indica un punto de peligro con un protencial de riesgo mediano para el

usuario. Punto de peligro que puede llevar hasta la muerte o graves
heridas .

ATENCIÓN Indica un punto de peligro con un protencial de riesgo pequeño para el

usuario. Punto de peligro que puede llevar hasta heridas leves o
pequeñas

CUIDADO Indica la posibilidad de utilizar mal el producto y a consecuencia

dañarlo.

INFORMACIÓN Indica una situación en la que deberían seguirse las instrucciones en el

uso del producto, pero que no consecuentemente deben de llevar a un
daño del mismo.

Las palabras de señal corresponden a la definición habitual para aplicaciones civiles en el ámbito de la
comunidad económica europea. Pueden existir definiciones diferentes a esta definición. Por eso se
debera tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en
combinación con la correspondiente documentación y solamente en combinación con el producto
correspondiente. La utilización de las palabras de señal en combinación con productos o
documentaciones que no les correspondan puede llevar a malinterpretaciones y tener por
consecuencia daños en personas u objetos.

Informaciones de seguridad elementales

1. El producto solamente debe ser utilizado
según lo indicado por el fabricante referente
a la situación y posición de funcionamiento
sin que se obstruya la ventilación. Si no se
convino de otra manera, es para los
productos R&S válido lo que sigue:
como posición de funcionamiento se define
principialmente la posición con el suelo de la
caja para abajo , modo de protección IP 2X,
grado de suciedad 2, categoría de
sobrecarga eléctrica 2, utilizar solamente en
estancias interiores, utilización hasta 2000 m
sobre el nivel del mar.
A menos que se especifique otra cosa en la
hoja de datos, se aplicará una tolerancia de
±10% sobre el voltaje nominal y de ±5%
sobre la frecuencia nominal.

2. En todos los trabajos deberán ser tenidas en
cuenta las normas locales de seguridad de
trabajo y de prevención de accidentes. El
producto solamente debe de ser abierto por
personal périto autorizado. Antes de efectuar
trabajos en el producto o abrirlo deberá este
ser desconectado de la corriente. El ajuste,
el cambio de partes, la manutención y la
reparación deberán ser solamente
efectuadas por electricistas autorizados por
R&S. Si se reponen partes con importancia
para los aspectos de seguridad (por ejemplo
el enchufe, los transformadores o los
fusibles), solamente podrán ser sustituidos
por partes originales. Despues de cada
recambio de partes elementales para la
seguridad deberá ser efectuado un control de

1171.0000.42-02.00 página 2

Informaciones de seguridad

seguridad (control a primera vista, control de
conductor protector, medición de resistencia
de aislamiento, medición de medición de la
corriente conductora, control de
funcionamiento).

3. Como en todo producto de fabricación
industrial no puede ser excluido en general
de que se produzcan al usarlo elementos
que puedan generar alergias, los llamados
elementos alergénicos (por ejemplo el
níquel). Si se producieran en el trato con
productos R&S reacciones alérgicas, como
por ejemplo urticaria, estornudos frecuentes,
irritación de la conjuntiva o dificultades al
respirar, se deberá consultar inmediatamente
a un médico para averigurar los motivos de
estas reacciones.

4. Si productos / elementos de construcción son
tratados fuera del funcionamiento definido de
forma mecánica o térmica, pueden generarse
elementos peligrosos (polvos de sustancia
de metales pesados como por ejemplo
plomo, berilio, níquel). La partición elemental
del producto, como por ejemplo sucede en el
tratamiento de materias residuales, debe de
ser efectuada solamente por personal
especializado para estos tratamientos. La
partición elemental efectuada
inadecuadamente puede generar daños para
la salud. Se deben tener en cuenta las
directivas nacionales referentes al
tratamiento de materias residuales.

5. En el caso de que se produjeran agentes de
peligro o combustibles en la aplicación del
producto que debieran de ser transferidos a
un tratamiento de materias residuales, como
por ejemplo agentes refrigerantes que deben
ser repuestos en periodos definidos, o
aceites para motores, deberan ser tenidas en
cuenta las prescripciones de seguridad del
fabricante de estos agentes de peligro o
combustibles y las regulaciones regionales
para el tratamiento de materias residuales.
Cuiden también de tener en cuenta en caso
dado las prescripciones de seguridad
especiales en la descripción del producto.

6. Ciertos productos, como por ejemplo las
instalaciones de radiación HF, pueden a
causa de su función natural, emitir una
radiación electromagnética aumentada. En
vista a la protección de la vida en desarrollo
deberían ser protegidas personas
embarazadas debidamente. También las
personas con un bypass pueden correr

peligro a causa de la radiación
electromagnética. El empresario está
comprometido a valorar y señalar areas de
trabajo en las que se corra un riesgo de
exposición a radiaciones aumentadas de
riesgo aumentado para evitar riesgos.

7. La utilización de los productos requiere
instrucciones especiales y una alta
concentración en el manejo. Debe de
ponerse por seguro de que las personas que
manejen los productos estén a la altura de
los requerimientos necesarios referente a
sus aptitudes físicas, psíquicas y
emocionales, ya que de otra manera no se
pueden excluir lesiones o daños de objetos.
El empresario lleva la responsabilidad de
seleccionar el personal usuario apto para el
manejo de los productos.

8. Antes de la puesta en marcha del producto
se deberá tener por seguro de que la tensión
preseleccionada en el producto equivalga a
la del la red de distribución. Si es necesario
cambiar la preselección de la tensión
también se deberán en caso dabo cambiar
los fusibles correspondientes del prodcuto.

9. Productos de la clase de seguridad I con
alimentación móvil y enchufe individual de
producto solamente deberán ser conectados
para el funcionamiento a tomas de corriente
de contacto de seguridad y con conductor
protector conectado.

10. Queda prohibida toda clase de interrupción
intencionada del conductor protector, tanto
en la toma de corriente como en el mismo
producto ya que puede tener como
consecuencia el peligro de golpe de corriente
por el producto. Si se utilizaran cables o
enchufes de extensión se deberá poner al
seguro, que es controlado su estado técnico
de seguridad.

11. Si el producto no está equipado con un
interruptor para desconectarlo de la red, se
deberá considerar el enchufe del cable de
distribución como interruptor. En estos casos
deberá asegurar de que el enchufe sea de
fácil acceso y nabejo (medida del cable de
distribución aproximadamente 2 m). Los
interruptores de función o electrónicos no
son aptos para el corte de la red eléctrica. Si
los productos sin interruptor están integrados
en construciones o instalaciones, se deberá
instalar el interruptor al nivel de la
instalación.

1171.0000.42-02.00 página 3

Informaciones de seguridad

12. No utilice nunca el producto si está dañado el
cable eléctrico. Asegure a través de las
medidas de protección y de instalación
adecuadas de que el cable de eléctrico no
pueda ser dañado o de que nadie pueda ser
dañado por él, por ejemplo al tropezar o por
un golpe de corriente.

13. Solamente está permitido el funcionamiento
en redes de distribución TN/TT aseguradas
con fusibles de como máximo 16 A.

14. Nunca conecte el enchufe en tomas de
corriente sucias o llenas de polvo. Introduzca
el enchufe por completo y fuertemente en la
toma de corriente. Si no tiene en
consideración estas indicaciones se arriesga
a que se originen chispas, fuego y/o heridas.

15. No sobrecargue las tomas de corriente, los
cables de extensión o los enchufes de
extensión ya que esto pudiera causar fuego
o golpes de corriente.

16. En las mediciones en circuitos de corriente
con una tensión de entrada de Ueff > 30 V se
deberá tomar las precauciones debidas para
impedir cualquier peligro (por ejemplo
medios de medición adecuados, seguros,
limitación de tensión, corte protector,
aislamiento etc.).

17. En caso de conexión con aparatos de la
técnica informática se deberá tener en
cuenta que estos cumplan los requisitos de
la EC950/EN60950.

18. Nunca abra la tapa o parte de ella si el
producto está en funcionamiento. Esto pone
a descubierto los cables y componentes
eléctricos y puede causar heridas, fuego o
daños en el producto.

19. Si un producto es instalado fijamente en un
lugar, se deberá primero conectar el
conductor protector fijo con el conductor
protector del aparato antes de hacer
cualquier otra conexión. La instalación y la
conexión deberán ser efecutadas por un
electricista especializado.

20. En caso de que los productos que son
instalados fijamente en un lugar sean sin
protector implementado, autointerruptor o
similares objetos de protección, deberá la
toma de corriente estar protegida de manera
que los productos o los usuarios estén
suficientemente protegidos.

21. Por favor, no introduzca ningún objeto que
no esté destinado a ello en los orificios de la
caja del aparato. No vierta nunca ninguna
clase de líquidos sobre o en la caja. Esto
puede producir corto circuitos en el producto
y/o puede causar golpes de corriente, fuego
o heridas.

22. Asegúrese con la protección adecuada de
que no pueda originarse en el producto una
sobrecarga por ejemplo a causa de una
tormenta. Si no se verá el personal que lo
utilice expuesto al peligro de un golpe de
corriente.

23. Los productos R&S no están protegidos
contra el agua si no es que exista otra
indicación, ver también punto 1. Si no se
tiene en cuenta esto se arriesga el peligro de
golpe de corriente o de daños en el producto
lo cual también puede llevar al peligro de
personas.

24. No utilice el producto bajo condiciones en las
que pueda producirse y se hayan producido
líquidos de condensación en o dentro del
producto como por ejemplo cuando se
desplaza el producto de un lugar frío a un
lugar caliente.

25. Por favor no cierre ninguna ranura u orificio
del producto, ya que estas son necesarias
para la ventilación e impiden que el producto
se caliente demasiado. No pongan el
producto encima de materiales blandos como
por ejemplo sofás o alfombras o dentro de
una caja cerrada, si esta no está
suficientemente ventilada.

26. No ponga el producto sobre aparatos que
produzcan calor, como por ejemplo
radiadores o calentadores. La temperatura
ambiental no debe superar la temperatura
máxima especificada en la hoja de datos.

1171.0000.42-02.00 página 4

Informaciones de seguridad

27. Baterías y acumuladores no deben de ser
expuestos a temperaturas altas o al fuego.
Guardar baterías y acumuladores fuera del
alcance de los niños. Si las baterías o los
acumuladores no son cambiados con la
debida atención existirá peligro de explosión
(atención celulas de Litio). Cambiar las
baterías o los acumuladores solamente por
los del tipo R&S correspondiente (ver lista de
piezas de recambio). Baterías y
acumuladores son deshechos problemáticos.
Por favor tirenlos en los recipientes
especiales para este fín. Por favor tengan en
cuenta las prescripciones nacionales de cada
país referente al tratamiento de deshechos.
Nunca sometan las baterías o acumuladores
a un corto circuito.

28. Tengan en consideración de que en caso de
un incendio pueden escaparse gases tóxicos
del producto, que pueden causar daños a la
salud.

29. Por favor tengan en cuenta que en caso de
un incendio pueden desprenderse del
producto agentes venenosos (gases, líquidos
etc.) que pueden generar daños a la salud.

30. No sitúe el producto encima de superficies,
vehículos, estantes o mesas, que por sus
características de peso o de estabilidad no
sean aptas para él. Siga siempre las
instrucciones de instalación del fabricante
cuando instale y asegure el producto en
objetos o estructuras (por ejemplo paredes y
estantes).

31. Las asas instaladas en los productos sirven
solamente de ayuda para el manejo que
solamente está previsto para personas. Por
eso no está permitido utilizar las asas para la
sujecion en o sobre medios de transporte
como por ejemplo grúas, carretillas
elevadoras de horquilla, carros etc. El
usuario es responsable de que los productos
sean sujetados de forma segura a los medios
de transporte y de que las prescripciones de
seguridad del fabricante de los medios de
transporte sean tenidas en cuenta. En caso
de que no se tengan en cuenta pueden
causarse daños en personas y objetos.

32. Si llega a utilizar el producto dentro de un
vehículo, queda en la responsabilidad
absoluta del conductor que conducir el
vehículo de manera segura. Asegure el
producto dentro del vehículo debidamente
para evitar en caso de un accidente las
lesiones u otra clase de daños. No utilice
nunca el producto dentro de un vehículo en
movimiento si esto pudiera distraer al
conductor. Siempre queda en la
responsabilidad absoluta del conductor la
seguridad del vehículo y el fabricante no
asumirá ninguna clase de responsabilidad
por accidentes o colisiones.

33. Dado el caso de que esté integrado un
producto de laser en un producto R&S (por
ejemplo CD/DVD-ROM) no utilice otras
instalaciones o funciones que las descritas
en la documentación. De otra manera pondrá
en peligro su salud, ya que el rayo laser
puede dañar irreversiblemente sus ojos.
Nunca trate de descomponer estos
productos. Nunca mire dentro del rayo laser.

1171.0000.42-02.00 página 5

Legend, Abbreviations and Reference R&S FSMU-W

Legend, Abbreviations and References

References

[1] 3GPP TS25.141, V5.x.x (2004)
WCDMA base station conformance testing (FDD)

[2] ITU-R SM.329

[3] Rohde & Schwarz, Application Note 1EF45
Spurious emission measurement on 3GPP base station transmitters

[4] 3GPP TS25.211, V5.x.x (2004)
Physical channels and mapping of transport channels onto physical channels (FDD)

Abbreviations

STTD Space Time Transmit Diversity (see TS 25.211)

CPICH Common Pilot Channel (see TS 25.211)

PDSCH Physical Downlink Shared Channel (see TS 25.211)

SCH Synchronization Channel (see TS 25.211)

TS Time Slot

TM Test Model (see TS 25.141)

Keys on the R&S FSQ

Hardkeys

Hotkeys

Softkeys

Hardkeys are all of the other keys on the R&S FSQ. In this document.

The hotkeys are located at the lower edge of the screen. You can use the hotkeys to

switch between the different applications of the R&S FSQ. In this document.

The softkeys are located at the right side of the screen. The labelling of the softkeys will

change depending on what mode the instrument is in.

For a description of the keys and their position on the FSQ, please refer to Chapter 3 of the R&S FSQ
manual.

Keys on the R&S SMU

Hardkeys

Hotkeys

Menu keys

Selection

For a description of the keys and their position on the SMU, please refer to Chapter 3 of the R&S SMU
manual.

Hardkeys are all of the keys on the R&S SMU. In this document.

The hotkeys are located at the lower edge of the screen. You can use the hotkeys to switch

between the open windows of the R&S SMU. In this document.

The menu keys are found in the active window. The menus can be selected using the cursor

keys or the rotary control. In this document.

Possible selections within a particular menu of the R&S SMU. These selections can be

accessed using pull-down menus.

1166.1560.12 0.1 E-1

R&S FSMU-W Contents

Contents

1 General Information ............................................................................................ 1.1

Information about the R&S FSQ .....................................................................................................1.1

Basic Operating Steps .............................................................................................................1.1

Tips and Special Tricks ............................................................................................................1.3

Tips and Special Tricks for Code Domain Measurements.......................................................1.6

Information about the R&S SMU...................................................................................................1.12

Calling Test Case Wizard.......................................................................................................1.12

Panel Test Case Wizard ........................................................................................................1.13

Improvements on the Signal Quality ......................................................................................1.18

Notes on programming examples ................................................................................................1.20

IEC/IEEE bus addresses used...............................................................................................1.20

Recommended settings in the GPIB driver from National Instruments .................................1.21

Functions for the R&S FSQ....................................................................................................1.22

Functions for the R&S SMU ...................................................................................................1.24

Functions for the GPIB bus ....................................................................................................1.26

User interface .........................................................................................................................1.30

Functions for internal sequence control .................................................................................1.32

Data types ..............................................................................................................................1.34

List of illustrations

Fig. 1-1

Fig. 1-2 Transducer table with some values entered......................................................................... 1.2

Fig. 1-3 Level relationships in the R&S FSQ ..................................................................................... 1.3

Fig. 1-4 R&S FSQ display when there is no trigger........................................................................... 1.4

Fig. 1-5 R&S FSQ display when the instrument is overdriven .......................................................... 1.5

Fig. 1-6 Error that occurs with no external trigger ............................................................................. 1.7

Fig. 1-7 Overflow trigger error............................................................................................................ 1.8

Fig. 1-8 Error screen for “Incorrect Pilot“ ........................................................................................... 1.9

Fig. 1-9 Error screen for “Sync Failed” ............................................................................................ 1.10

Fig. 1-10 Panel 3GPP FDD ............................................................................................................... 1.12

Fig. 1-11 Upper panel part................................................................................................................. 1.13

Fig. 1-12 Lower panel part................................................................................................................. 1.16

Fig. 1-13 R&S SMU synchronization by start trigger ......................................................................... 1.17

Fig. 1-14 R&S SMU synchronization to clock master/slave .............................................................. 1.17

Fig. 1-15 Baseband Gain Setting for improved ACLR Performance ................................................. 1.18

Fig. 1-16 RF Level Setting for Level Control ..................................................................................... 1.19

Fig. 1-17 Structure of example programs .......................................................................................... 1.20

Fig. 1-18 Recommended standard settings of the GPIB card".......................................................... 1.21

Fig. 1-19 Structure of example programs"......................................................................................... 1.21

Fig. 1-20 Example of the Fsmu_MessageBox – LabWindows/CVI version ...................................... 1.30

Fig. 1-21 Example of Fsmu_MessageBox – ANSI version" .............................................................. 1.30

List of Tables

Table 1-1

Table 1-2 Operation Summary ......................................................................................................... 1.17

Entering the name of the transducer table ........................................................................... 1.2

List of wizard supported test cases .................................................................................. 1.15

1166.1560.12 I-1.1 E-1

R&S FSMU-W Information about the R&S FSQ

1 General Information

Information about the R&S FSQ

Basic Operating Steps

This chapter describes instrument settings that occur repeatedly. These are steps that are required in order
to put the instruments into a state where it is possible to make most of the required measurements directly.
Some optional steps are also described, e.g. how to switch on the external trigger.

Basic State of the R&S FSQ for Measurements on 3G Base Stations

The steps described in this chapter must be performed at the start of each test. This is why they are
described here in one central location and mentioned under the description of the individual tests.

1. Set the R&S FSQ to multicarrier mode (opt)
Note: Skip this item if there is only one carrier (Single Carrier).

¾ Press the

The softkeys for configuring the code domain parameters will appear.

SETTINGS

hotkey.

2. Reset the instrument

¾ Press the

PRESET

key.

This will return the instrument to its basic state.

3. Load a suitable transducer table

You can skip this item if the value of the transfer function for the external circuitry is already taken
into account in the result or if a fixed value for the transfer function is assumed. For information on
creating the transducer table, see Chapter 8, “Frequency Correction” in this manual.

¾ Press the
¾ Press the

SETUP

TRANSDUCER Ø

key.

softkey.

¾ A selection window with the stored transducer tables should appear.
¾ Select the desired table using the

Ø

×

or

key and press

ENTER

. Mark the selected table with

the 9 mark.
Press the

¾ Press the

ENTER

ESC

key.

key again to deactivate the transducer table.

Selection of the transducer table is complete.

4. Set a fixed value for the transfer function

¾ If only a single value is required to represent the transfer function of the external circuitry, you

can enter it in this step. For information on frequency correction, see Chapter 9 of this manual.

¾ Press the

AMPT

key.

The Amplitude menu should open.

¾ Press the

NEXT

key.

The side menu for the Amplitude menu should appear.

¾ Press the

REF LEVEL OFFSET

softkey.

¾ Use the keypad to enter the desired external attenuation in the input field (e.g. 10) and complete

your entry by pressing the

dB

key.

5. Set the center frequency to the frequency of the base station

¾ Press the

FREQ

key.

The Frequency menu should appear.

1166.1560.12 1.1 E-1

Information about the R&S FSQ R&S FSMU-W

¾ Use the keypad to enter the desired frequency in the input field (e.g. 2140) and complete your

entry by pressing the

MHz

key. You can enter the frequency in units of GHz, MHz, kHz and Hz.

6. Launch the 3GPP-FDD test application for base stations

¾ Press the

MORE

3G FDD BS

hotkey. If this hotkey is not located at the lower edge of the screen, press the

hotkey until the

3G FDD BS

hotkey appears.

The instrument should now be in the test application for 3G FDD base stations.

Entering a Transducer Table in the R&S FSQ

7. Create a transducer table in the R&S FSQ

¾ Press the
¾ Press the
¾ A selection window with the stored transducer tables should appear.
¾ Press the

A form for entering transducer factors should appear.

¾ Press the

Use the cursor keys or rotary knob to select the letters in the file name and finish your input with

¾ Use the

You will see the following text: “Press Ø for character lines”

SETUP

TRANSDUCER Ø

NEW FACTOR Ø

ENTER

×

key.

softkey.

softkey.

key.

key to select the upper line.

ENTER

.

Fig. 1-1 Entering the name of the transducer table

¾ Accept the file name by pressing

ENTER

.

8. Enter a comment

¾ Press the

Ø

key to select the “Comment” line and press

ENTER

.

Enter the comment as described in the previous step.

¾ Accept the comment by pressing

ENTER

.

9. Enter the frequency/level pairs

GHz

¾ Enter the value of the frequency in the “Frequency” column and press the

key to complete
your entry.
You can also enter the frequency in units of MHz, kHz or Hz. The cursor will jump automatically
to the “TDF / dB” column.

¾ In the “TDF / dB” column, enter the value of the attenuation and press

ENTER

.

The cursor will jump automatically to the next row and the “Frequency” column.

Fig. 1-2 Transducer table with some values entered

10. Save the table

¾ Press the

SAVE TRD FACTOR

key to save the table. If there is already a table with the same

name, you will be asked to confirm your input.

1166.1560.12 1.2 E-1

R&S FSMU-W Information about the R&S FSQ

Tips and Special Tricks

Optimum Setting of the Reference Level and the Input Attenuator of the R&S FSQ

The accuracy and dynamic range that are possible when measuring with the R&S FSQ are dependent
primarily on proper settings of the input attenuator and the reference level. These parameters need to
be set to meet different criteria in different measurements. To make the instrument as easy to use as
possible while still producing the best possible measurement accuracy and dynamic range, a separate
automatic routine is provided in each measurement mode to set the R&S FSQ. This routine can be
called up in each measurement mode by pressing the

For swept measurements of the K72, the reference level is set optimally depending on the spacing from the
useful signal, e.g. when measuring the adjacent channel power or the spectrum emission mask.

Obtaining an Optimum Setting for the R&S FSQ’s Attenuator

The signal being measured passes directly from the input connector via the attenuator to the input mixer, i.e.
there is no filtering. This means that all of the spectral components contribute to the input level.

ADJUST REF LVL

softkey.

Fig. 1-3 Level relationships in the R&S FSQ

In terms of the optimum level at the input mixer, note the following:

• The higher the level at the input mixer, the greater the signal-to-noise ratio of the measurement.

• The lower the level at the input mixer, the greater the intermodulation ratio of the R&S FSQ.

• The maximum permissible level at the input mixer is +5 dBm; levels above this will produce an

OVLD (see the section “Error: The Instrument is Overdriven” on page 1.5).

• All of the spectral components of the input signal contribute to the input level.

For measurements in the code domain, the input attenuator is set so that the maximum level of the
input signal at the mixer is just below the +5 dBm threshold.

In this case, the value of the attenuation produced by the input attenuator is computed using the
following formula:

a

/ dB = P / dBm – 5 dB

rfatt

where

a

RF attenuation set using the attenuator (RF Att)

rfatt

L

Peak input level, referenced to 1 mW

in,max

Level at the input of the first mixer for full drive, referenced to 1 mW

L

mix

1166.1560.12 1.3 E-1

Information about the R&S FSQ R&S FSMU-W

Obtaining an Optimum Setting for the R&S FSQ’s Reference Level

The signal being measured passes from the input mixer to the IF filter, where it is filtered with the set
resolution bandwidth. At the output of the IF filter, the signal is sampled with an A/D converter and digitally
processed in the following detector unit. By indicating the reference level, the gain in the IF filter is set so that
the A/D converter is just fully driven for an input signal level equal to the reference level.

In terms of the optimum reference level at the input mixer, note the following:

• The A/D converter may be overdriven only at times when the signal is not being evaluated.

• The higher the A/D converter is driven, the better the signal-to-noise ratio that will be obtained during

the measurement.

• Only the components of the input signal after filtering in the IF filter contribute to the drive of the A/D
converter.

• The optimum reference level for measurements in the code domain is 3 dB above the peak value of
the filtered input signal. The filter used in these measurements has a width of 10 MHz so that the
levels of the carrier being measured currently and the adjacent carriers must be taken into account.

Error: The Instrument is Not Triggering

During manual operation, the measurement is normally repeated continuously and the measurement
results are always kept up to date. The updating will be suspended while the instrument is waiting for a
trigger. This is indicated by a * at the top right edge of the screen:

Fig. 1-4 R&S FSQ display when there is no trigger

Error source Remedy

The trigger source is missing and the R&S FSQ is set for
external triggering.

Apply an external trigger signal
or:
Switch over to Free Run :

Press the

TRIGGER

key and then the

FREE RUN

softkey.

1166.1560.12 1.4 E-1

R&S FSMU-W Information about the R&S FSQ

Error: The Instrument is Overdriven

The instrument indicates an overdrive condition in the output screen using the IFOVL or OVLD indicator
as shown below:

Fig. 1-5 R&S FSQ display when the instrument is overdriven

Interpretation:

OVLD indicates that the input mixer is overdriven. => Increase the input attenuation

IFOVL indicates that the IF is overdriven. => Increase the reference level.

1166.1560.12 1.5 E-1

Information about the R&S FSQ R&S FSMU-W

Tips and Special Tricks for Code Domain Measurements

Operation of the R&S FSQ when making measurements in the code domain does not differ significantly
in the different test cases. This section summarizes the tips and special tricks for all of the test cases
that apply to the code domain. The test cases are as follows:

Section Title

6 3GPP-FDD Transmitter Tests

6.2.2 CPICH power accuracy

6.3 Frequency error (together with EVM)

6.4.2 Power control steps

6.4.3 Power control dynamic range

6.4.4 Total power dynamic range (together with EVM)

6.7.1 Error vector magnitude (EVM)

6.7.2 Peak code domain error

Setting the Input Attenuator

The input attenuator is set automatically after you press the

ADUST REF LVL

softkey. The input attenuator
of the R&S FSQ is set so that the peak value of the input signal at the R&S FSQ’s mixer has a value of
less than +5 dBm.

For a multicarrier signal, the entire signal must be taken into account.

See also Chapter 6, section “Optimum Setting of the Reference Level and the Input Attenuator of the
R&S FSQ”, page 1.3.

Setting the Reference Level

The reference level is set automatically after you press the

The R&S FSQ’s reference level is set so as to just avoid overdriving the instrument, i.e. the reference
level is set approx. 3 dB above the peak value of the signal that is present after the IF filter. For a
multicarrier signal, the carrier to whose center frequency the R&S FSQ is set and its two neighbours all
make a contribution.

See also Chapter 6, section “Optimum Setting of the Reference Level and the Input Attenuator of the
R&S FSQ”, page 1.3.

ADUST REF LVL

softkey.

1166.1560.12 1.6 E-1

R&S FSMU-W Information about the R&S FSQ

Error: Automatic Level Setting is Stuck

The R&S FSQ is stuck during automatic level adjustment (after pressing the
shown in the following figure:

Fig. 1-6 Error that occurs with no external trigger

ADJUST REF LVL

softkey) as

Error source Remedy

The trigger source is missing and the
R&S FSQ is set for external triggering.

Apply an external trigger signal
or:
Switch over to Free Run

Press the

TRIGGER

key and then the FREE RUN softkey.

1166.1560.12 1.7 E-1

Information about the R&S FSQ R&S FSMU-W

Error: R&S FSQ is Overdriven After Automatic Level Adjustment

The R&S FSQ is experiencing an overflow after automatic level adjustment (after pressing the

REF LVL

softkey) as shown in the following figure:

Fig. 1-7 Overflow trigger error

Error source Remedy

The R&S FSQ was not set to multicarrier
but multiple carriers are present. (Multi
Carrier).

The R&S FSQ is set to the wrong
frequency.

Set the R&S FSQ to multicarrier mode and perform the automatic
level setting again.

NEXT

¾ Press the SETTINGS hotkey, then the

MULTICARRIER ON OFF softkey.
The green marker should switch from OFF to ON, and the R&S
FSQ is now in multicarrier mode.

¾ Press the RESULTS hotkey, then the ADJUST REF LVL softkey.

The R&S FSQ will make the automatic level setting for
multicarrier.

Set the R&S FSQ to the frequency of the base station.

¾ Press the

The green marker should switch from OFF to ON, and the FSQ is
now in multicarrier mode.

¾ Press the RESULTS hotkey, then the ADJUST REF LVL softkey.

The FSQ will make an automatic level setting for multicarrier.

FREQ

key and enter the frequency in the input window.

key and the

ADJUST

1166.1560.12 1.8 E-1

R&S FSMU-W Information about the R&S FSQ

Error: INCORRECT PILOTS

The following error message will appear in the top screen: INCORRECT PILOT. The measured values

Fig. 1-8 Error screen for “Incorrect Pilot“

Error source Remedy

The antenna diversity settings of the base
station and FSQ do not agree.

Set the proper antenna diversity.

¾ Press the Settings hotkey.

The softkeys for configuring the code domain parameters will
appear.

¾ Press the ANT DIV ON OFF softkey.

The green marker will switch from ON to OFF or vice versa.

¾ Press the ANT DIV 1 2 softkey.

This is required only if ANT DEV was set to ON in the previous step.
The green marker will switch from 1 to 2 or vice versa

1166.1560.12 1.9 E-1

Information about the R&S FSQ R&S FSMU-W

Error: (FRAME) SYNC FAILED

The following error message will appear in the top screen: SYNC FAILED. Only noise is displayed. The
composite EVM is equal to 100 %.

Fig. 1-9 Error screen for “Sync Failed”

Error source Remedy

The FSQ is overdriven or
underdriven.

The scrambling code of the base
station and the R&S FSQ do not
agree.

The antenna diversity is set
incorrectly.

The antenna diversity is set
incorrectly.

Make an automatic level setting.

¾ Press the RESULTS hotkey, then the ADJUST REF LVL softkey.

The R&S FSQ will perform an automatic level setting.

Set the correct scrambling code.

¾ Press the Settings hotkey.

The softkeys for configuring the code domain parameters will appear.

¾ Press the SCRAMBLING CODE softkey.

Enter the scrambling code for the base station as a hexadecimal number. Range of
values: 0 to 1FFF
Enter hexadecimal numbers by preceding them with a decimal point. Example:
Enter the scrambling code 1F2a by typing 1.52.0.

Set the antenna diversity to the correct value. The settings of the base station and the
R&S FSQ must agree.

¾ Press the Settings hotkey.

The softkeys for configuring the code domain parameters will appear.

¾ Press the ANT DIV ON OFF softkey.

The green marker will switch from ON to OFF or vice versa.

¾ Press the ANT DIV 1 2 softkey.

This is required only if ANT DEV was set to ON in the previous step.
The green marker will switch from 1 to 2 or vice versa.

The synchronization of the R&S FSQ is set incorrectly. The R&S FSQ should
synchronize to the synchronization channel (SCH) only if the common pilot channel
(CPICH) is missing. This is the case in test model 4.

¾ Press the Settings hotkey.

The softkeys for configuring the code domain parameters will appear.

¾ Press the SNC TYPE CPICH SCH softkey.

The green marker will switch from CPICH to SCH or vice versa.

1166.1560.12 1.10 E-1

R&S FSMU-W Information about the R&S FSQ

Error source Remedy

The trigger offset or trigger polarity is
set incorrectly.

Set the trigger offset to the correct value. The R&S FSQ needs a trigger signal in the
range from 650 µs to 0 ns before the frame begins.

¾ Press the

The softkeys for triggering will appear.

¾ Press the TRIGGER OFFSET softkey.

Set the correct trigger offset in the input field. You can also set the correct time
using the rotary knob. The time you set will go into effect immediately so that the
correct time can be detected.

Change the polarity

¾ Press the

The softkeys for triggering will appear.

¾ Press the POLARITY POS NEG softkey.

The polarity will be switched and the green marker will switch from POS to NEG or
vice versa.

¾ Set the “FREE RUN” trigger mode.

¾ Press the

The softkeys for triggering will appear.

¾ Press the FREE RUN softkey.

The R&S FSQ’s trigger mode will be changed. In the FREE RUN trigger mode, you
do not need a trigger offset.

TRIG

TRIG

TRIG

key.

key.

key.

1166.1560.12 1.11 E-1

Information about the R&S SMU R&S FSMU-W

Information about the R&S SMU

Calling Test Case Wizard

The Test Case Wizard can be called by the menu button
Fig. 1-10. At the push of the button panel Test Case W izard opens.
The Test Case Wizard has effect on Link Direction, trigger, clock and base and mobile station configu­rations, respectively (according to the general R&S SMU operating policy: above located buttons may
change below located settings).

The Test Case Wizard supports some selected Test Cases according to TS 25.141.
The Test Case Wizard serves as a short cut for all the R&S SMU relevant settings. That means that
besides the 3GPP required settings also interference signals in terms of AWGN, CW interference, colo­cated modulation signals or fading profiles are generated.

Test Case Wizard

in the 3GPP panel pictured in

Fig. 1-10 Panel 3GPP FDD

1166.1560.12 1.12 E-1

Information about the R&S SMU R&S FSMU-W

Panel Test Case Wizard

The panel falls into three parts. In the upper part (Fig. 1-11) the user can select among

• the available test cases according to the TS 25.141,

• the degree of freedom of input settings (by Edit Mode),

• trigger and marker configurations,

• diversity and two routing schemes:

– Route Baseband A to RF output port A. Baseband B is routed to RF output port B or its signal is added

to RF output port A (depending on the test case). The baseband A signal is disturbed by the modules
FADER A or AWGN A (depending on the test case). The baseband B signal is disturbed by the mod­ules FADER B or AWGN B (depending on the test case).

– Route Baseband A to RF output port. Baseband A is routed to RF output port A or its signal is added to

RF output port B (depending on the test case). The baseband A signal is disturbed by the modules
FADER B or AWGN B (depending on the test case). The baseband B signal is disturbed by the mod­ules FADER A or AWGN A (depending on the test case).

• the scrambling scheme,

• the base station power class.

In the right upper corner a graphic plot symbolizes the interference scenario defined by power level and
freuqency offset.

Test cases where R&S SMU hardware equipment is not sufficient are shown in grey color but are not
selectable. RF power and frequency limitations of the R&S SMU hardware equipment restrict the set­ting ranges. The test cases require at least a basic configuration including:

• R&S SMU-K42: Digital standard 3GPP-FDD,

• R&S SMU-B11: Baseband generator / Arbitrary Waveform Generator with 16/64 MSamples,

• R&S SMU-B13: Baseband main module,

• R&S SMU-B10x: RF path 100 kHz - x GHz.

• R&S SMU-K62: Additive White Gaussian Noise, when a AWGN signal is required.

Fig. 1-11 Upper panel part

1166.1560.12 1.13 E-1

Information about the R&S SMU R&S FSMU-W

Test Case

Edit Mode

Trigger Configuration

Sets the required test case.
The user can select from a list of test cases according to the chapter
numbering in TS 25.141 (s. Table x)
Remote-control command:

:SOUR:BB:W3GP:TS25141:TCASe [TC642 | TC66 | TC72 |
TC73 | TC74 | TC75 | TC76 | TC78 | TC821 | TC831 |
TC832 | TC833 | TC834 | TC84 | TC85 | TC86 | TC881 |
TC882 | TC883 | TC884 | TC891 | TC892 | TC893 | TC894]

Sets the wizards edit mode. The user can select from

• According to Standard: the settings are bound to TS 25.141,
some items may be set to read only;

• User Definable: The user can choose the settings from a wider
range, e.g. in terms of frequency offset, power level and so on.

Remote-control command:

:SOUR:BB:W3GP:TS25141:EMODe [STANdard | USER]

Sets the R&S SMU trigger configuration. Triggers may be used to
synchronize the R&S SMU by the other equipment. The user can
choose from

• Auto: A test case dependent trigger configuration is in use. Unless
otherwise stated the R&S SMU is set to ‘Armed Auto (External

Trigger1)’,

Marker Configuration

Diversity (if supported by the
test case)

Baseband A Signal Routing
(in case of no diversity)

• Unchanged: The previous trigger setting is not changed

Remote-control command:

:SOUR:BB:W3GP:TS25141:TRIGger [AUTO | PRESet]

Sets the R&S SMU marker configuration. Markers may be used as
trigger to synchronize the other equipment. The user can choose from

• Auto: A test case dependent marker configuration is in use,

• Unchanged: The previous marker setting is not changed

Remote-control command:

:SOUR:BB:W3GP:TS25141:TRIGger:OUTPut [AUTO | PRESet]

Sets the R&S SMU according to the base station diversity processing
capability. The user can choose from:

• ON: The baseband signals are routed to either RF ports A and B,

• OFF: The baseband signals are routed to RF port A or B (depend-

ing on Baseband A routing).

Remote-control command:
:SOUR:BB:W3GP:TS25141:RXDiversity [ON | OFF]

Sets the routing of baseband A signal, that in most cases represents
the ‘wanted signal’ (except from test case 6.6). The user can choose
from

• To Path and RF Port A,

• To Path and RF Port B

Remote-control command:

:SOUR:BB:W3GP:TS25141:ROUTe [A | B]

1166.1560.12 1.14 E-1

Information about the R&S SMU R&S FSMU-W

Table 1-1 List of wizard supported test cases

Chapter Title Default setting

6 Transmitter ---------

6.4 Output power dynamics ---------

6.4.2 Power control steps

6.6 Transmit intermodulation

7 Receiver characteristics ---------

7.2 Reference sensitivity level

7.3 Dynamic range

7.4 Adjacent Channel Selectivity (ACS)

7.5 Blocking characteristics

7.6 Intermodulation characteristics

7.8 Verification of the internal BER calculation No BLER (BLER=0%)

8 Performance requirement ---------

8.2 Demodulation in static propagation conditions ---------

8.2.1 Demodulation of DCH Static Propagation

8.3 Demodulation of DCH in multipath fading conditions ---------

8.3.1 Multipath fading Case 1 Fading Case 1

8.3.2 Multipath fading Case 2 Fading Case 2

8.3.3 Multipath fading Case 3 Fading Case 3

8.3.4 Multipath fading Case 4 Fading Case 4

8.4 Demodulation of DCH in moving propagation conditions Moving propagation

8.5 Demodulation of DCH in birth/death propagation conditions Birth/Death propagation

8.6 Verification of the internal BLER calculation No BER (BER = 0%)

8.8 RACH performance ---------

8.8.1 RACH preamble detection in static propagation conditions Static propagation

8.8.2 RACH preamble detection in multipath fading case 3 Fading case 3

8.8.3 Demodulation of RACH message in static propagation condi­tions

8.8.4 Demodulation of RACH message in multipath fading case 3 Fading case 3

8.9 CPCH Performance ---------

8.9.1 CPCH access preamble and collision detection preamble de­tection in static propagation conditions

8.9.2 CPCH access preamble and collision detection preamble de­tection in multipath fading case 3

8.9.3 Demodulation of CPCH message in static propagation condi­tions

8.9.4 Demodulation of CPCH message in multipath fading case 3 Fading Case 3

Static propagation

Static propagation

Fading case 3

Static propagation

Scrambling Code (hex)

Sets the base station or user equipment scrambling code figure (base
station identification).

Remote-control command:

:SOUR:BB:W3GP:TS25141:SCODe

1166.1560.12 1.15 E-1

Information about the R&S SMU R&S FSMU-W

Scrambling Mode

Off
On (in case of

Long Scram-

Short Scram-

Power Class (if supported by

the test case and if Edit Mode
‘According to Standard’)

The middle part displays the input/output parameters of the selected test case and further configuration
entries besides the default settings. The following chapters give a detailed description of the test cases.

After pressing the
reset) initializes the R&S SMU, which

Apply Settings

Sets the scrambling mode.

Remote-control command:

:SOUR:BB:W3GP:TS25141:SCODe:MODE [OFF | ON | LONG | SHORt]

Disables scrambling coding for test purposes.
Enables scrambling coding in case of forward link

forward link only)

bling Code (in
case of reverse
link only)

bling Code
( only modes
DPCCH +
DPDCH and
PCPCH only)

Sets the base station power class. The user can choose from:

• Wide Area BS,

• Medium Range BS,

• Local Area BS

Remote-control command:

:SOUR:BB:W3GP:TS25141:BSPClass [WIDE | MEDium | LOCal]

button at the bottom (Fig. 1-12) a partial reset (not a general R&S SMU

test setups only.

Sets the long scrambling code in case of reverse
link test setups only.

Sets short scrambling code in case of reverse link
test setups only.
The short scrambling code is only standardized for
DPCCH and DPDCH channels.

• switches off all the baseband modules, fading modules, AWGN blocks, but the impairment settings
of AWGN remain unchanged,

• does not switch the RF modules On or Off,

• does not alter any other configuration besides the active baseband modules, the fading modules, the

AWGN blocks.

Next all the baseband modules, fading modules, AWGN blocks which are in use according to the entered test
case are prepared for operation, and all the database and GUI settings are refreshed showing the current state.

Fig. 1-12 Lower panel part

Apply Settings

A few seconds later the R&S SMU is ready to start. For synchronisation reasons R&S SMU baseband A
(and baseband B if the test case requires) are set to mode ‘armed auto external trigger1’. Unless oth­erwise noted the trigger delay is set equal to zero. Thus, the base station frame timing is able to syn­chronise the R&S SMU by an SFN (System Frame Number) periodic trigger. In case the R&S SMU of­fers a channel coded signal (e.g. as all the Reference Measurements Channels require) the base station
shall emit an ‘SFN mod 4’ periodic trigger (see Fig. 1-13).

Updates the R&S SMU settings according to the test case

Remote-control command:

:SOUR:BB:W3GP:TS25141:TCASe:EXECute

1166.1560.12 1.16 E-1

Information about the R&S SMU R&S FSMU-W

The R&S SMU itself is able to synchronize further measuring instruments by its Marker1 trace.

R&S SMU

BS frame
trigger

Base

Station

Marker 1

Measuring
Instrument

Trigger 1

Fig. 1-13 R&S SMU synchronization by start trigger

Fig. 1-14 R&S SMU synchronization to clock master/slave

Note: When building up the measurement setups according to TS 25.141 it might be useful that

all the instruments share a common reference clock. However, after

PRESET

the R&S
SMU uses its internal clock reference by default. In order to feed in the clock of an external
clock master the RF module configuration should be switched to external clock referency.

Before triggering the R&S SMU the user is able to change the settings. This applies particularly to RF
power levels in order to compensate cable loss and additionally inserted attenuators. These RF power
levels can easily be adjusted in the right upper corner of the SMU GUI.
Table 1-2 gives a summary of all the steps required to have the R&S SMU test case signals sent.

Table 1-2 Operation Summary

• Push the button ‚

Test Case Wizard

’ in the 3GPP panel

• Choose the required Test Case

• Enter the test case directed settings, e.g. in terms of frequency, power level, …

• Push the button ‘

Apply Settings

‘

• May change or further refine the setting results

• Start the R&S SMU signal generation by an trigger impulse at connector TRIGGER1

Note: For safety reasons the RF is not active unless the button

RF ON

has not been pressed once.

1166.1560.12 1.17 E-1

Information about the R&S SMU R&S FSMU-W

Improvements on the Signal Quality

I/Q Settings

The I/Q blocks offer the possibility to change the internal baseband gain for improved ACLR perform­ance (see Fig. 1-15).
In each I/Q block (A or B) that will be used for the test case

• Set Source to Internal Baseband and

• Set the internal Baseband Gain to 3 dB (Best For High 3GPP ACLR) or 6 dB (Best For Low Noise)

Fig. 1-15 Baseband Gain Setting for improved ACLR Performance

1166.1560.12 1.18 E-1

Information about the R&S SMU R&S FSMU-W

RF Level Settings

The RF blocks offer the possibility to manipulate the RF power level (see Fig. 1-16).

In case the Automatic Level Control State is set to

• Auto (default configuration) the level control is automatically adapting but may causes increased
intermodulation.

• Sample&Hold the internal level control deactivated and a single Search Once command should
calibrate the RF output level.

The User Correction Settings enable the user to enter frequency dependent level correction figures into
a list. By activating the State (On) this User Correction Data will increase the origin RF level by an
frequency interpolated level offset.

Fig. 1-16 RF Level Setting for Level Control

1166.1560.12 1.19 E-1

R&S FSMU-W Notes on programming examples

Notes on programming examples

The programming examples in the description of the test cases describe the programming of the
devices and serve as a basis for solving complex programming tasks.

On the supplied CD, the programming examples are combined in a program (3gpp Sample
Progams\bin\3gpp_cvi.exe or 3gpp_ansi.exe). Before the instrument is put into operation, this program
must be copied into a user-selected directory of the controller. The program can be run, provided the
PC has a driver for a GPIB card from National Instruments.

ANSI-C was used as the programming language. Every measurement example is listed as a function in
a separate file. A common graphical user interface (GUI) is used to call all measurement examples.

There are two versions of the GUI:

• 3gpp_menu_cvi.c: uses the API of LabWindows/CVI (National Instruments)

• 3gpp_menu_ansi.c: uses only ANSI-C string routines

The programs can thus be implemented in other languages or development environments as well.

The GPIB bus is programmed in separate central functions contained in the FSMU_global module. The
functions there address the GPIB bus via drivers from National Instruments. Encapsulation in the
FSMU_global module makes porting to drivers of other GPIB bus manufacturers easy.

Fig. 1-17 Structure of example programs

This section describes the central functions contained in the FSMU_global module.

IEC/IEEE bus addresses used

R&S FSQ: 28
R&S SMU: 20

The instrument addresses used are ex factory. If other addresses are used, the #defines for
FSQ_PRIMARY_ADDR or SMU_PRIMARY_ADDR must be changed in the fsmu_global.c module.

1166.3363.12 1.20 E-1

R&S FSMU-W Notes on programming examples

Recommended settings in the GPIB driver from National Instruments

The recommended settings are in the NI-488.2 Settings tab:

Fig. 1-18 Recommended standard settings of the GPIB card"

Send EOI at end of Write: must be activated
Terminate Read on EOS: must be deactivated
SET EOI with EOS on Write: must be deactivated
System Controller must be activated

The other settings are system-dependent. The displayed values are the defaults.

The following settings are recommended in the Advanced tab:

Fig. 1-19 Structure of example programs"

Automatic Serial Polling: must be deactivated
Assert REN when SC (Remote Enable) must be activated

The other settings are system-dependent. The displayed values are the defaults.

1166.3363.12 1.21 E-1

Notes on programming examples R&S FSMU-W

Functions for the R&S FSQ

The functions are used for initializing and resetting the instrument. In addition, conversion routines for
converting the results of the R&S FSQ to C structures are also included.

Fsmu_InitFsq

Initializes the access to the GPIB bus for the R&S FSQ.
The primary and secondary address, timeout, EOT mode and EOI mode in the function are fixed.
The #defines at the beginning of the module may have to be edited.
If the analyzer cannot be initialized, the program is exited after issuing an error message.
The analyzer is not yet programmed in this function.

Declaration: void Fsmu_InitFsq (int *ud) ;

Parameters: *ud Pointer to the GPIB handle for analyzer

Returned value: None

Fsmu_CloseFsq

Queries the error queue of the R&S FSQ, informs the user in the event of an error, switches the
R&S FSQ to local and closes the GPIB access for the R&S FSQ. The GPIB handle is no longer valid
after the function has been called.

Note: The reset is skipped after the function Fsmu_SetSkipReset has been called with

parameter 1, allowing the programs to run faster. Calling the function with parameter 0
switches the reset on again.

The FSMU_ibd and FSMU_ibd transducer tables are created if they do not exist. A total of

35 dB is assumed in the entire frequency range of the R&S FSQ.

Declaration: void Fsmu_CloseFsq (int ud) ;

Parameters: ud GPIB handle of the analyzer

Returned value: None

Fsmu_SetupInstrumentFsq

Sets the R&S FSQ to the status required for the examples:

• Executes a reset (if necessary, see description)

• Sets the status registers

• Loads the FSMU_ibd transducer table (is generated if necessary)

• Sets the reference offset to 10 dB

• Switches on the screen update

• Sets the trigger to internal

Declaration: void Fsmu_SetupInstrumentFsq(int ud) ;

Parameters: ud GPIB handle of the analyzer

Returned value: None

1166.3363.12 1.22 E-1

R&S FSMU-W Notes on programming examples

Fsmu_ConvertFsqResultSummary

The result summary of the R&S FSQ can be queried either in ASCII format (:FORMat:ASCii;) or in
binary format (:FORMat REAL,32;). Transmission in ASCII format is slower, and the result must
be converted. Binary format, however, requires that the compiler be able to process the Reals
receive function in Intel IEEE format, which cannot always be defined in advance. The present

function converts the string in ASCII format and stores the result in a structure
(Fsq_ResultSummary, see page 1.34).

Declaration: int Fsmu_ConvertFsqResultSummary (char input_string [],

Fsq_ResultSummary *
summary) ;

Parameters: input_string: Result string of the R&S FS-K72 with the values of the result

summary in ASCII format

*summary: The results in a C structure

Returned value: 0: An error occurred during conversion; all values were set to .200

1: No error occurred

Fsmu_ConvertFsqResultTrace

A trace of the R&S FSQ can be queried either in ASCII format or in binary format. Transmission in
ASCII format is slower, and the result must be converted. Binary format, however, requires that the
compiler be able to process the Floats processing function in Intel IEEE format, which cannot always
be defined in advance. The present function converts the string in ASCII format and stores the result
in an array of floats.

Declaration: int Fsmu_ConvertFsqResultTrace (char input_string [],

float * summary,
int size) ;

Parameters: input_string Result string of the R&S FS-K72 with the values of a trace in

ASCII format

* summary The results in a float array

size The length of the array

Returned value: The number of converted values

1166.3363.12 1.23 E-1

Notes on programming examples R&S FSMU-W

Functions for the R&S SMU

The functions are used for initializing and resetting the instrument. In addition, functions for configuring
the R&S SMU for simulating a base station are also included.

Fsmu_InitSmu

Initializes the access to the GPIB bus for the R&S SMU.
The primary and secondary address, timeout, EOT mode and EOI mode in the function are fixed.
The #defines at the beginning of the module may have to be edited.
If the generator cannot be initialized, the program is exited after issuing an error message.
The generator is not yet programmed in this function.

Declaration: void Fsmu_InitSmu (int *ud) ;

Parameters: *ud Pointer to the GPIB handle for the generator

Returned value: None

Fsmu_CloseSmu

Queries the error queue of the R&S SMU, informs the user in the event of an error, switches the
R&S SMU to local and closes the GPIB access for the R&S SMU. The GPIB handle is no longer
valid after the function has been called

Declaration: void Fsmu_CloseSmu (int ud) ;

Parameters: ud GPIB handle of the generator

Returned value: None

Fsmu_SetupInstrumentSmu

Sets the R&S SMU to the status required for the examples:

• Executes a reset (if necessary, see description)

• Switches the R&S SMU off

• Sets the trigger to internal

• Sets the trigger mode to Auto

• Sets trigger inhibit to 0

• Sets the frequency to the value specified in the parameter (resolution 1 Hz)

• Sets the RF level to -2 dBm

• Switches the 3GPP mode on – depending on the parameter, for simulating a base station

(INIT_DL) or a mobile phone (INIT_UL)

Note: The reset is skipped after the function Fsmu_SetSkipReset has been called with

parameter 1, allowing the programs to run faster. Calling the function with parameter 0
switches the reset on again.

The generator is switched off after the function is called, and must be switched on by

calling the functions Fsmu_SmuOn and Fsmu_Smu3GPPOn.

Declaration: void Fsmu_SetupInstrumentSmu (int ud, InitMode Mode, double

freq)) ;

Parameters: ud GPIB handle of the analyzer

Mode INIT_UL or INIT_DL
freq Frequency in GHz

Returned value: None

1166.3363.12 1.24 E-1

R&S FSMU-W Notes on programming examples

Fsmu_SmuDiversity

The R&S SMU switches antenna diversity off (mode = 0), to antenna 1 (mode = 1) or antenna 2
(mode = 2).
If a parameter outside the permitted range is specified, diversity is switched off.

Declaration: void Fsmu_SmuDiversity (int ud, int mode) ;

Parameters: ud GPIB handle of the generator

mode 0 to 2

Returned value: None

Fsmu_SmuChannelPower

The level of the specified channel is set to the desired power. Channel numbers less than 1 are set
to channel 1; channel numbers greater than 138 are set to channel 138. Analogously, the power is
limited to values between -80 dBm and 0 dBm.

Declaration: void Fsmu_SmuChannelPower (int ud, int channel, double

level) ;

Parameters: ud GPIB handle of the analyzer

channel Channel (1 to 138) for which the power is to be set
level Desired power in dBm (-80 to 0)

Returned value: None

Fsmu_SmuRfRelPower

Increases or decreases the RF power of the R&S SMU by the specified value.

Note: The parameter is not checked.

Declaration: void Fsmu_SmuRfRelPower (int ud, double level) ;

Parameters: ud GPIB handle of the generator

level Desired power change in dB

Returned value: None

Fsmu_SmuOn

Switches on channel A of the R&S SMU's RF output.

Declaration: void Fsmu_SmuOn (int ud) ;

Parameters: ud GPIB handle of the generator

Returned value: None

Fsmu_Smu3GPPOn

The function writes a string from the buffer buf to the device with the handle ud. The output ends
with the characters '\0'.
If an error occurs during this process, it is reported to the user.
This function is an enhancement compared with the National Instruments functions.
Switches on the 3GPP mode of the R&S SMU

Declaration: void Fsmu_Smu3GPPOn (int ud) ;

Parameters: ud GPIB handle of the generator

Returned value: None

1166.3363.12 1.25 E-1

Notes on programming examples R&S FSMU-W

Functions for the GPIB bus

This section describes the functions used in the example programs for data traffic via GPIB.

The names of the functions are based on the corresponding functions of the drivers from National
Instruments.

If GPIB drivers from another manufacturer are used, it suffices to adjust the functions in this section.
The example programs access the GPIB bus solely via the functions listed in the following.

All functions require a "ud" handle of the int type, which is generated in the functions Fsmu_InitFsq
or Fsmu_InitSmu via the Fsmu_ibDev function.

Fsmu_ibWrt

The function writes count values from the buffer buf to the device with the handle ud.
If an error occurs during this process, it is reported to the user. This is an enhancement compared
with the National Instruments functions.

Declaration: int Fsmu_ibWrt (int ud, void * buf, long count) ;

Parameter: ud GPIB handle for the device

*buf Buffer to be written
count Number of values to be written

Returned value: Value of the variable ibsta

Fsmu_ibWrtln

The function writes a string from the buffer buf to the device with the handle ud. The output ends
with the characters '\0'.
If an error occurs during this process, it is reported to the user.
This function is an enhancement compared with the National Instruments functions.

Declaration: int Fsmu_ibWrtln (int ud, void * buf) ;

Parameters: ud GPIB handle for the device:

*buf Buffer to be written

Returned value: Value of the variable ibsta

Fsmu_ibRd

The function reads up to count characters from the device with the handle ud and stores them in
the buffer buf. The function stops reading when the EOI of GPIB occurs, but at the latest when
count values have been read in.
If an error occurs during this process, it is reported to the user. This is an enhancement compared
with the National Instruments functions.

Declaration: int Fsmu_ibRd (int ud, void * buf, long count) ;

Parameters: ud GPIB handle for the device

*buf Buffer to be written
count Maximum number of values to be read

Returned value: Value of the variable ibsta

1166.3363.12 1.26 E-1

R&S FSMU-W Notes on programming examples

Fsmu_ibRdln

The function reads up to count characters from the device with the handle ud and stores them in
the buffer buf. The function stops reading when the EOI of GPIB occurs, but at the latest when
count values have been read in. If the character last read in is CR (0xd) or LF (0xa), it is
replaced by '\0'.
If an error occurs during the read, it is reported to the user.
This function is an enhancement compared with the National Instruments functions.

Declaration: int Fsmu_ibRdln (int ud, void * buf, long count) ;

Parameters: ud GPIB handle for the device

*buf Buffer to be written
count Maximum number of values to be read

Returned value: Value of the variable ibsta

Fsmu_ibTmo

The function sets the timeout for the specified device or bus to the transferred value. The timeout
applies to all subsequent bus operations. With a National Instruments driver, the predefined values
of TNONE (off) and T10 us to T1000 s can be used as times.
If an error occurs while the timeout is being set, it is reported to the user. This function is an
enhancement compared with the National Instruments functions.

Declaration: int Fsmu_ibTmo (int ud, int TimeOut) ;

Parameters: ud GPIB handle for the device or for the bus

TimeOut Timeout as specified in the #defines (TNONE, T10 us to T1000 s)

Returned value: Value of the variable ibsta

Fsmu_ibGetTmo

The function reads out the timeout for the specified device or bus and transfers it to the calling
function. The ibask function is used with drivers from National Instruments.
If an error occurs while the timeout is being read, it is reported to the user.
This function is an enhancement compared with the National Instruments functions.

Declaration: int Fsmu_ibGetTmo (int ud, int * TimeOut) ;

Parameters: ud GPIB handle for the device or for the bus

*TimeOut Timeout as it is read out

Returned value: Value of the variable ibsta

Fsmu_ibWaitForSRQ

The function sets the timeout for the specified device to the transferred value and waits for an SRQ.
Subsequently it resets the timeout to the original value.
It uses the functions Fsmu_ibGetTmo and Fsmu_ibSetTmo, as well as WaitSRQ of the National
Instruments driver.

Declaration: int Fsmu_ibWaitForSRQ (int bd, int TimeOut) ;>

Parameters: ud GPIB handle for the device

TimeOut Timeout, see Fsmu_ibTmo

Returned value: Value of the variable ibsta

1166.3363.12 1.27 E-1

Notes on programming examples R&S FSMU-W

Fsmu_ibRsp

The function runs a serial poll on the specified bus and transfers the result in the parameter status_byte.
It uses the functions Fsmu_ibGetTmo and Fsmu_ibSetTmo, as well as WaitSRQ of the drivers.

Declaration: int Fsmu_ibRsp (int ud, char * status_byte) ;

Parameters: ud GPIB handle for a bus

status_byte: Response of the serial poll

Returned value: Value of the variable ibsta

Fsmu_ibCheck

The function checks the global variable ibsta for errors. If an error has occurred, this is reported to
the user and the program is exited, provided the value IBCHECK_TERMINATE was transferred in the
parameter mode.

Declaration: static void Fsmu_ibCheck (int ud, int mode, char *

ErrorMsg) ;

Parameters: ud GPIB handle for the device

Returned value: None

Side effect: The function terminates the program if an ibsta indicates an error and

IBCHECK_TERMINATE is transferred as the parameter mode.

Fsmu_ibDev

The function opens a channel for a device on the bus and sets the primary and secondary address,
timeout, EOI behavior and end-of-string behavior to the specified values. All specifications should
remain unchanged, except the value for the primary address.

Declaration: static int Fsmu_ibDev (int boardID, int pad, int sad, int tmo,

int eot, int eos) ;

Parameters: ud GPIB handle for the device

pad Primary address of the device
sad Secondary address of the device
tmo Timeout for the device
eot EOI behavior for the device
eos End-of-string behavior for the device
*listen Pointer to the response of the function

Returned value: Value of the variable ibsta

Fsmu_ibLn

The function checks whether a device with the specified primary and secondary address can be
addressed via the specified device handle. If no device can be addressed, 0 is stored in the
parameter listen; otherwise a value unequal to 0.

Declaration: static int Fsmu_ibLn (int ud, int pad, int sad, short

*listen) ;

Parameters: ud GPIB handle for the device

pad Primary address of the device
sad Secondary address of the device
*listen Pointer to the response of the function

Returned value: Value of the variable ibsta

1166.3363.12 1.28 E-1

R&S FSMU-W Notes on programming examples

Fsmu_ibLoc

Switches the device to local.

Declaration: static int Fsmu_ibLoc (int ud) ;

Parameters: ud GPIB handle for the device

Returned value: Value of the variable ibsta

Fsmu_ibOnl

The channel for the specified device is closed and all resources for the device released. The GPIB
handle loses its validity.

Declaration: static int Fsmu_ibOnl (int ud, int mode) ;

Parameters: ud GPIB handle for the device:

mode 0: driver for the device is released
Not 0: driver is not released

Returned value: Value of the variable ibsta

Fsmu_ibConfig

General configuration function used in the present examples to switch off autopolling of the driver.
If autopolling has already been deactivated in the driver, this function is not needed.

Declaration: static int Fsmu_ibConfig (int ud, int option, int value) ;

Parameters: ud GPIB handle for the device

option Option of the driver to be configured
value Value for the option with which the driver is configured

Returned value: Value of the variable ibsta

Fsmu_DeviceCheckSystemErrors

Queries the error queue of the specified device and displays the entries. The entry "0, no error" is
not displayed. The function can be used for debugging a program in order to locate faulty GPIB
strings quickly.

Declaration: int Fsmu_DeviceCheckSystemErrors (int ud) ;

Parameters: ud GPIB handle for the device

Returned value: None

Fsmu_WaitForDevice

Waits until a device has completed the preceding task.
The function performs this by sending an *OPC? to the device and waiting for its response. If a
timeout or other error occurs, it is reported to the user and FSMU_WARNING is returned; otherwise
FSMU_OK is returned.

Declaration: int Fsmu_WaitForDevice (int ud) ;

Parameters: ud GPIB handle for the device

Returned value: FSMU_WARNING or FSMU_OK

1166.3363.12 1.29 E-1

Notes on programming examples R&S FSMU-W

User interface

Data is input and output by one central function.

Fsmu_MessageBox

¾ Implementation via LabWindows/CVI

Outputs the two strings and waits for a mouse click.

Fig. 1-20 Example of the Fsmu_MessageBox – LabWindows/CVI version

¾ Implementation via ANSI-C

Outputs the two strings and waits for ENTER.

Fig. 1-21 Example of Fsmu_MessageBox – ANSI version"

Declaration: void Fsmu_MessageBox (const char title[], const char

message[]);

Parameters: title String of the header

message Output string

Returned value: None

Fsmu_HideMessageBox

Auxiliary function for Fsmu_MessageBox: It is called by the callback function of the OK button and
sets the s_MessageBoxFlag flag to 0.
The routine is only needed in the implementation with LabWindows/CVI.

Declaration: void Fsmu_HideMessageBox (void) ;

Parameters: None

Returned value: None

1166.3363.12 1.30 E-1

R&S FSMU-W Notes on programming examples

Fsmu_MessageHandle

Auxiliary function for Fsmu_MessageBox: It transfers the handle graphic for outputting text to the
module.
The routine is only needed in the implementation with LabWindows/CVI.

Declaration: void Fsmu_MessageHandle (int handle) ;

Parameters: handle Handle for the Fsmu_MessageBox window

Returned value: None

1166.3363.12 1.31 E-1

Notes on programming examples R&S FSMU-W

Functions for internal sequence control

The functions described in this section are used for controlling the sequence of the example programs. These
functions can set and query the value of static variables. All static variables have useful default values.

Fsmu_GetMultiCarrier

The function indicates whether a multicarrier or a single carrier base station is being tested.

Declaration: int Fsmu_GetMultiCarrier (void) ;

Parameters: None

Returned value: Value of the module-global variable s_MultiCarrierMode

1: Multicarrier is on
0: Single carrier

Fsmu_SetMultiCarrier

Description see Parameters.

Declaration: void Fsmu_SetMultiCarrier (int mode) ;

Parameters: 1: The module-global variable s_MultiCarrierMode is set

All others The module-global variable s_MultiCarrierMode is reset

Returned value: None

Fsmu_GetBtsEmulation

The function indicates whether the base station is emulated by the R&S SMU.

Declaration: int Fsmu_GetBtsEmulation (void) ;

Parameters: None

Returned value: Value of the module-global variable s_MultiCarrierMode

1: BTS is emulated by the R&S SMU => The R&S SMU is configured as
a BTS in the tests
0: Users are prompted to configure the BTS

Fsmu_SetBtsEmulation

Description see Parameters.

Declaration: void Fsmu_SetBtsEmulation (int mode) ;

Parameters: 1: The module-global variable s_BtsEmulationMode is set

All others The module-global variable s_BtsEmulationMode is reset

Returned value: None

1166.3363.12 1.32 E-1

R&S FSMU-W Notes on programming examples

Fsmu_GetSkipReset

Declaration: int Fsmu_GetSkipReset (void) ;

Parameters: None

Returned value: Value of the module-global variable s_SkipResetMode

1: Instrument reset is skipped in the Fsmu_SetupInstrumentSmu or the
Fsmu_SetupInstrumentFsq function
0: Reset is always performed

Fsmu_SetSkipReset

The function indicates whether the instrument reset is to be skipped (see Parameters).

Declaration: void Fsmu_SetSkipReset (int mode) ;

Parameters: 1: The module-global variable s_SkipResetMode is set

All others The module-global variable s_SkipResetMode is reset

Returned value: None

1166.3363.12 1.33 E-1

Notes on programming examples R&S FSMU-W

Data types

Fsmu_InitMode

The enum notifies the Fsmu_SetupInstrumentSmu function whether the R&S SMU is to be
configured for the uplink or downlink.

Declaration: /* define, how initialisation should be done */

typedef enum
INIT_DL,
INIT_UL
} Fsmu_InitMode ;

Fsq_ResultSummary

The results of the K72 result summary are stored in the result summary. On Intel systems, the
results of the R&S FSQ can be read directly into the specified structure if the compiler used supports
the IEC/IEEE float format (which is the case with LabWindows/CVI from National Instruments and
Visual C from Microsoft). This feature is used in the test case examples.
ASCII format must be used on machines with big endian format. This is clearly shown in the EVM
test case using the function Fsmu_ConvertFsqResultSummary (see page 1.22).

Declaration:

/* summary result is returned in the following string */
/* <composite EVM>,<peak CDE>,<carr freq Error>,<chip rate error>,
* <total power>,<trg to frame>,<EVM peak channel>,<EVM mean channel>,
* <class>, <channel number>,<power abs. channel>,<power
* rel. channel>,<timing offset>, <I/Q offset>,<I/Q imbalance>
*/
typedef struct
{
float composite_evm ; /* % */
float peak_domain_error ; /* dB */
float carr_freq_error; /* Hz */
float chip_rate_error; /* ppm */
float total_power; /* dBm */
float trg_to_frame; /* µs */
float evm_peak_channel; /* % */
float evm_mean_channel; /* % */
float Class; /* spreading number */
float channel_number; /* code of channel */
float power_abs_channel; /* dBm */
float power_rel_channel; /* dB */
float timing_offset; /* chips */
float IQ_offset; /* % */
float IQ_imbalance; /* % */

} Fsq_ResultSummary ;

power_step

Declaration: Local in the function power_control_steps_aggregated

/* Result, as returned by FSQ in binary format */
typedef struct
{ float index ;
float level ;
} power_step ;

1166.3363.12 1.34 E-1

R&S FSMU-W Notes on programming examples

Structure for recording the power control steps (in the R&S FSQ: Power Steps versus Time) with
binary data transmission. See Fsmu_SetupInstrumentSmu on page 1.34.

peak_value

Structure for recording the peak listen with binary data transmission (see page 1.34).

Declaration:

in spectrum emission mask und spurious emissions

/* one element of the peak list as returned by the FSQ */
typedef struct
{
float frequency ; /* Hz frequency of peak */
float level ; /* dB level of peak */
float delta ; /* dB delta to limitline */
} peak_value ;

1166.3363.12 1.35 E-1

R&S FSMU-W Contents

Contents

2 Test Setup............................................................................................................ 2.1

Basic Setup .......................................................................................................................................2.1

Trigger ...............................................................................................................................................2.2

R&S FSQ Trigger Circuitry.......................................................................................................2.2

R&S SMU Trigger Circuitry ......................................................................................................2.3

Reference Frequency .......................................................................................................................2.4

Measurements Only with the R&S FSQ .........................................................................................2.6

Standard Test Setup with the R&S FSQ ..................................................................................2.6

Test Setup with the Two-channel R&S SMU..................................................................................2.7

Default Instrument Settings ............................................................................................................2.8

Default R&S FSQ Setting for Measurements on 3GPP Base Stations ...................................2.8

Default State of the R&S SMU for Measurements on 3GPP Base Stations............................2.9

List of illustrations

Fig. 2-1

Fig. 2-2 R&S FSQ triggering..............................................................................................................2.2

Fig. 2-3 R&S SMU triggering ............................................................................................................. 2.3

Fig. 2-4 R&S FSQ test setup with external reference frequency....................................................... 2.4

Fig. 2-5 Screen message of the R&S FSQ when the external reference frequency is missing ........ 2.5

Fig. 2-6 Standard test setup for measurements with the R&S FSQ .................................................. 2.6

Fig. 2-7 Basic setup with the R&S FSQ and the two-channel R&S SMU.......................................... 2.7

Basic setup with the R&S SMU and R&S FSQ .................................................................... 2.1

1166.1560.12 I-2.1 E-1

R&S FSMU-W Basic Setup

2 Test Setup

Basic Setup

Fig. 2-1 shows the test setup used for most measurements. However, for most applications it is
sufficient to use solely the R&S SMU or the R&S FSQ.

You can determine the required test setups from the basic setup described in Fig. 2-1 or from the
description that follows.

Test setups that occur in only one measurement configuration are described together with the
measurement in chapter 9, 3gpp_tx_tests.doc.

The attenuation of attenuator R1 must be large enough that the max. permissible input level
of 30 dBm is not exceeded. The input power at the R&S FSQ must not exceed 30 dBm.

Connect the RF output (channel A) of the R&S SMU directly with the input of the base station receiver.

For many measurements, the instruments of the R&S FSMU-W require a trigger signal from the base
station. The description of the circuitry and application of the trigger signal is provided in the section
Trigger on page 2.2.

Attenuator R1 must be dimensioned accordingly.

Fig. 2-1 Basic setup with the R&S SMU and R&S FSQ

1166.1560.12 2.1 E-1

Trigger R&S FSMU-W

Trigger

Many measurements require that the measurement instruments be synchronized to the base station by
means of a trigger.

With the R&S FSQ, a trigger is not absolutely necessary, except for the power control steps measurement,

6.4.2. However, triggering increases the speed of the measurements in the code domain.

With the R&S SMU, a trigger is necessary in all cases in which the R&S SMU generates channel-coded
signals. This is the case for all tests in sections 7 and 8 of TS25.141.

R&S FSQ Trigger Circuitry

Connect the frame trigger output of the base station with the input EXT TRIGGER / GATE IN of the
R&S FSQ. Fig. 2-2 shows the test setup and location of the trigger input connector.

625

SCPI

IEC 2

I / Q DATA OUT

IEC 2

LAN

VIDEO

IF OUT

IF OUT

20.4 MHz

OUT

404.4 MHz

REF OUT

REF IN

REF OUT

640 MHz

1...20 MHz

AUX CONTROL

EXT TRIGGER/

SWEEP

GATE IN

MOUSE MONITOR COM

LPT

625

SCPI

100 - 240 VAC

3.1 - 1.3 A

Fig. 2-2 R&S FSQ triggering

R&S FSQ settings:

With the R&S FSQ, use only the Free Run or External trigger types when carrying out measurements of
3GPP base stations.

Measurements in the code range are usually faster with external triggering than with internal triggering
since it is easier to search for the beginning of the frame.

Set the trigger type to Free Run.

This trigger type is on after pressing Preset.

¾ Press the

¾ Press the

The softkey is highlighted in green.

Set the trigger type to External.

¾ Press the

¾ Press the

The softkey is highlighted in green.

TRIG

key.

FREE RUN

TRIG

key.

External

softkey.

softkey.

1. Compensate for the analog delays between the trigger event and the beginning of the frame.

¾ Press the

TRIGGER OFFSET

softkey.

1166.1560.12 2.2 E1

R&S FSMU-W Trigger

R&S SMU Trigger Circuitry

The measurements in chapters 7 and 8 require that the R&S SMU be triggered externally from the base
station. Fig. 2-3 shows the test setup and location of the trigger input connector.

.

SMU 200A

PRE­SET

LOCAL

SETUP

HCOPY

INFO

HELP

FREQ

LEVEL

MOD

RF

ON/OFF

ON/OFF

7

abc8def

5

ghi4jkl

1

pqrs mV

tuv2wxyz

E

0

#

...
*

BACK-

INSERT

SPACE

CLOSE

HIDE

REARR

WINBAR

FILE

RECAL­CULATE

G / n

9

dBµV

M / µ

6

µV

mno

k / m

3

F

x

+/-

dB(m)

A a

ENTER

MARKER12

SENSOR

1

1141.2005.02VECTOR SIGNAL GENERATOR

DIA-

MENU

GRAM

I

ON/OFF

ESC

TOGGLE

A

Q

B

C

DATA

D

CLOCK

RF 50

TRIGGER 1

USB

BA

MADE IN GERMANY

Fig. 2-3 R&S SMU triggering

R&S SMU settings:

With the R&S SMU, use only the Free Run or External trigger types when carrying out measurements
of 3GPP base stations.

Measurements in the code range are usually faster with external triggering than with internal triggering
since it is easier to search for the beginning of the frame.

Set the trigger type to Free Run.

This trigger type is on after pressing Preset.

¾ Press the

¾ Press the

The softkey is highlighted in green.

TRIG

key.

FREE RUN

softkey.

Set the trigger type to External.

¾ Press the

¾ Press the

TRIG

External

key:

softkey.

The softkey is highlighted in green.

Compensate for the analog delays between the trigger event and the beginning of the frame:

¾ Press the

TRIGGER OFFSET

softkey.

1166.1560.12 2.3 E-1

Reference Frequency R&S FSMU-W

Reference Frequency

With the R&S SMU, the internal reference is sufficient.

With the R&S FSQ, the optional oven-controlled crystal oscillator (OCXO) is sufficient for all
measurements. A high-precision reference frequency (max. error: < 5E-9) is recommended only for test

6.3, frequency error.

Connect the reference frequency output with the external reference frequency input of the R&S FSQ at
the rear of the R&S FSQ.

Fig. 2-4 shows the test setup and location of the external reference input connector.

625

SCPI

IEC 2

I / Q DATA OUT

IEC 2

LAN

VIDEO

IF OUT

IF OUT

OUT

20.4 MHz

404.4 MHz

REF OUT

REF IN

REF OUT

640 MHz

1...20 M Hz

AUX CONTROL

USB

EXT TRIGGER/

SWEEP

GATE IN

MOUSE MONITOR COM

USB

LPT

625

SCPI

100 - 240 VAC

3.1 - 1.3 A

Fig. 2-4 R&S FSQ test setup with external reference frequency

Switch on the external reference frequency of the R&S FSQ.

Do not change the reference frequency setting after you have pressed the preset key!

¾ Press the

¾ Press the

SETUP

key.

FREFERENCE INT EXT

softkey.

The green highlighting of the softkey switches from INT to EXT.

Switch on the internal reference frequency of the R&S FSQ.

Do not change the reference frequency setting after you have pressed the preset key!

¾ Press the

¾ Press the

SETUP

key.

FREFERENCE INT EXT

softkey.

The green highlighting of the softkey switches from EXT to INT.

Note: If the external reference frequency signal is missing, the status signal EXREF will be

displayed on the screen of the R&S FSQ. Synchronization with the measurement signal is
often not possible in this case, as shown in the following diagram.

1166.1560.12 2.4 E1

R&S FSMU-W Reference Frequency

Fig. 2-5 Screen message of the R&S FSQ when the external reference frequency is missing

1166.1560.12 2.5 E-1

Measurements Only with the R&S FSQ R&S FSMU-W

Measurements Only with the R&S FSQ

Standard Test Setup with the R&S FSQ

Fig. 2-6 shows the test setup commonly used for measurements only with R&S FSQ. The use of the
external trigger is described in the section R&S FSQ Trigger Circuitry on page 2.2. The use of the
reference frequency is described in the section Reference Frequency on page 2.4.

Connect the RF input of the R&S FSQ with the RF output of the base station by means of an attenuator.

The attenuation of the attenuator R1 must be large enough that the max. permissible R&S FSQ input
level of 30 dBm is not exceeded.

Fig. 2-6 Standard test setup for measurements with the R&S FSQ

The input power on the R&S FSQ must not exceed 30 dBm. Attenuator R1 must be
dimensioned accordingly.

1166.1560.12 2.6 E1

R&S FSMU-W Test Setup with the Two-channel R&S SMU

Test Setup with the Two-channel R&S SMU

The R&S SMU can be equipped with two optional RF outputs. In addition to the uplink signal of the R&S
SMU, one or more interferers can then be generated.

Fig. 2-7 shows the testup commonly used for most measurements.
The outputs of the R&S SMU are routed directly to the receiver of the base station via a power splitter.

Fig. 2-7 Basic setup with the R&S FSQ and the two-channel R&S SMU

1166.1560.12 2.7 E-1

Default Instrument Settings R&S FSMU-W

Default Instrument Settings

This section describes instrument settings that are frequently used. These settings must be made to
enable the instruments to carry out the measurements directly.

Optional steps are marked with (opt) where applicable.

Default R&S FSQ Setting for Measurements on 3GPP Base Stations

1. Reset the instrument.

¾ Press the

PRESET

The instrument is in its default state.

2. Load a suitable transducer table (opt).

You can skip this step if the attenuation of the external circuitry is automatically included in the
result.

¾ Press the

¾ Press the

SETUP

TRANSDUCER Ø

A selection window will display the stored transducer tables.

¾ Choose the desired table by means of the Ø or × keys and select it via the

The desired table is marked with 9.
If you press the

key.

key.

ENTER

softkey.

key again, the transducer table is deactivated.

ENTER

key.

¾ Press the ESC key.

The selection of the transducer table is terminated.

3. Set a fixed value for the transfer function (opt).

You can skip this step if the attenuation of the external circuitry is automatically included in the result or if
the transducer table contains all frequency correction data.

AMPT

¾ Press the

key.

The amplitude menu opens.

NEXT

¾ Press the

key.

The side menu of the amplitude menu opens.

¾ Press the

REF LEVEL OFFSET

softkey.

¾ Enter the desired external attenuation in the entry field using the numeric keypad (10 in the

example) and terminate with the

dB

key.

4. Set the center frequency to the frequency of the base station.

FREQ

¾ Press the

key.

The frequency menu opens.

¾ Enter the desired frequency in the entry field using the numeric keypad and terminate by pressing

the unit key. Example:

2140 MHz.

5. Start the 3GPP FDD measurement application for base stations.

¾ Press the

hotkey until the

3G FDD BS

3G FDD BS

hotkey. If this hotkey is not at the lower part of the screen, press the

hotkey is displayed.

MORE

1166.1560.12 2.8 E1

R&S FSMU-W Default Instrument Settings

Default State of the R&S SMU for Measurements on 3GPP Base Stations

1. Reset the instrument.

¾ Press the

PRESET

The instrument is in its default state.

2. Load a suitable user correction table (opt).

You can skip this step if the attenuation of the circuitry is automatically included in the result.

¾ Press the

¾ Select the

SETUP

RF/A Mod

The menu for entering the user correction data is displayed.

¾ Select the

User Correction Data…

You can now either enter new data or call the file manager.

¾ Call the

File Manager…

A list of the previously selected user correction data sets and a list of the currently available data
sets are displayed.

¾ Select the desired data set and confirm with

¾ Select

State

.

OFF changes to ON, and the selected user correction table is activated.

¾ Press the

ESC

The selection of the transducer table is terminated.

key.

key.

menu.

key.

menu

menu.

ENTER

.

3. Set the center frequency to the receive frequency of the base station.

¾ Press the

FREQ

key.

The frequency menu is ready for entries.

¾ Enter the desired frequency in the entry field using the numeric keypad and terminate by pressing

the unit key. Example:

2140 MHz

.

4. Set the transmission level.

¾ Press the

LEVEL

key.

The level menu is ready for entries.

¾ Enter the desired level in the entry field using the numeric keypad and terminate by pressing the

key.

-90 dBm

.

unit key. Example:

¾ Press the

ESC

The R&S SMU is in its default state.

5. Start the 3GPP FDD measurement application for base stations.

¾ Select the

¾ Select the

Baseband config…

3GPP FDD…

menu.

menu.

The basic menu for configuring the 3GPP FDD application is displayed.

1166.1560.12 2.9 E-1

R&S FSMU-W Contents

Contents

3 Frequency Correction of the Test Setup........................................................... 3.1

Preliminary Remarks........................................................................................................................3.1

Correction by Entering a Level Offset ............................................................................................3.2

Entering a Fixed Attenuation Value for the Test Setup in the FSQ .........................................3.2

Entering a Fixed Attenuation Value for the Test Setup in the SMU.........................................3.2

Correction of the Frequency Response of the Test Setup ..........................................................3.2

Basic Concept ..........................................................................................................................3.2

Steps for Measuring the Frequency Response Using the FSMU-W .......................................3.3

Normalizing the Instruments and the Auxiliary Cable ....................................................3.3

Recording the Frequency Response of the Test Setup.................................................3.6

Storing the Correction Values........................................................................................3.7

Using the Correction Values ..........................................................................................3.7

Sample Program ...............................................................................................................................3.8

List of illustrations

Fig. 3-1

Fig. 3-2 Rear connection of the R&S SMU and R&S FSQ to the scalar network analyzer ................. 3.3

Fig. 3-3 Test setup during normalization .............................................................................................. 3.4

Fig. 3-4 Screenshot from the normalization measurement”................................................................. 3.5

Fig. 3-5 Screenshot after normalization ............................................................................................... 3.6

Fig. 3-6 Test setup when measuring the frequency response of the cable to the R&S FSQ .............. 3.6

Basic test setup ....................................................................................................................... 3.2

1166.1560.12 I-3.1 E-1

R&S FSMU-W

Preliminary Remarks

3 Frequency Correction of the Test Setup

Preliminary Remarks

The levels displayed using the R&S FSQ and R&S SMU will refer to the connector on the instrument if
no further measures are taken. As a general rule, however, it is necessary to take special measures to
correct the frequency response of the test setup. The R&S FSMU-W allows you to choose among
several possibilities in this regard:

• Manual correction of the measurement result: The frequency response of the test setup is added to
the measured value or the setting of the level in the R&S SMU is corrected by the amount of the
frequency response.

• Correction by entering a level offset (1 reference point) in the instruments: This makes it possible to
correct the measured value at a single frequency very quickly. If the frequency response of the test
setup can be neglected in the frequency range of interest, this method offers the fastest approach.

• Measurement of the frequency response of the external circuitry and taking into account of the
measured frequency response in the equipment. In general, this is the most precise technique but it
is also the most complex. The complexity can be minimized by using the “External Generator
Control” Option (a standard feature of the R&S FSMU-W).

• A combination of all of these is possible.

This chapter describes how you can automatically take into account the frequency response of the test
setup in the displayed levels.

1166.1560.12 3.1 E-1

Correction by Entering a Level Offset R&S FSMU-W

Correction by Entering a Level Offset

Correction by entering a level offset into the instruments will always make sense if the frequency
response of the test setup can be neglected in the frequency range of interest or if the absolute
measured level is not important. This will be the case, for example, when making signal quality
measurements (EVM, PCDE, etc). On the stimulus side, this applies to the measurement of the power
control steps, for example.

Entering a Fixed Attenuation Value for the Test Setup in the R&S FSQ

1. Set a fixed value for the transfer function

¾ Press the

The Amplitude menu should open.

¾ Press the

The side menu for the Amplitude menu should appear.

¾ Press the

¾ Use the keypad to enter the desired external attenuation in the input field (e.g. 10) and complete

your entry by pressing the dB key. Use positive numbers to enter attenuation values.

AMPT

key.

NEXT

key.

REF LEVEL OFFSET

softkey.

Entering a Fixed Attenuation Value for the Test Setup in the R&S SMU

2. Set a fixed value for the transfer function

¾ Select

The menu for RF module A and the analog module will appear.

¾ Select

The menu for configuring the RF output will appear.

¾ There, enter the desired level offset (e.g.

enter attenuation values.

Config…

LEVEL/EMF…

in the

RF/A MOD A

menu.

-10 dBm

) in the

Offset

menu. Use negative numbers to

Correction of the Frequency Response of the Test Setup

Basic Concept

The basic circuit that connects the R&S FSMU-W to the base station is shown Fig. 3-1.

Fig. 3-1 Basic test setup

1166.1560.12 3.2 E-1

R&S FSMU-W Correction of the Frequency Response of the Test Setup

In the R&S FSQ, you can take the frequency response of the “FSQ Cable” into account in the
measurement by using what is known as “transducer factors”.

In the R&S SMU, the corresponding table is known as the “user correction table”.

The R&S FSQ’s transducer tables can be created with this configuration and can be directly stored out
of the measurement trace.

You can measure the frequency response of the cables using the R&S FSMU-W and store the result in
the R&S FSQ in the form of a transducer table. Using an external program, the R&S FSQ’s transducer
table can be transferred to a user correction table in the R&S SMU.

For this measurement, the R&S SMU and R&S FSQ are operated with option FSP-B10 (“External
Generator Control”) as a scalar network analyzer.

Fig. 3-2 Rear connection of the R&S SMU and R&S FSQ to the scalar network analyzer

The following table lists the pin allocation in the control cable between the R&S FSQ and R&S SMU:

Cable 1103.9735.00 Instrument

Designation Type Instrument Connection

- 9-pol. D-Sub R&S FSQ AUX-Control

TRIGGER BNC SMU Instrument Trigger

BLANK BNC SMU User 1

MARKER BNC - -

In addition, the R&S FSQ’s 2

nd

GPIB bus must be connected to the R&S SMU’s GPIB bus via the

supplied GPIB bus cable.

Steps for Measuring the Frequency Response Using the R&S FSMU-W

This section explains how to measure the frequency response of the test setup using the R&S FSMU-W
and how to take it into account in the measured values. The numbers given in the example are based
on a setup in the inband frequency range.

Normalizing the Instruments and the Auxiliary Cable

During the first step, the frequency response of the R&S SMU, R&S FSQ and an auxiliary cable are
recorded. This frequency response is subtracted from the frequency response (recorded subsequently) of
the test setup including the equipment so that the frequency response of the test setup remains. Fig. 3-3
shows the connections.

1166.1560.12 3.3 E-1

Correction of the Frequency Response of the Test Setup R&S FSMU-W

Fig. 3-3 Test setup during normalization

The auxiliary cable that is shown must be reused in all of the further measurement procedures.

All of the required steps are listed below:

1. Set the network mode

¾ Press the

The softkeys for configuring the network mode will appear.

¾ Press the

The side menu for the settings will open.

NETWORK

NEXT

key.

hotkey.

2. Set the generator

¾ Press the

EXT SOURCE Ø

softkey.

The softkeys for configuring the external generator will appear.

¾ Press the

SELECT GENERATOR

softkey.

The selection menu for configuring the external generator will appear.

¾ Select the generator

¾ Select the

¾ Press the

TTL

Interface in the menu under IFC.

FREQUENCY SWEEP

SMU03B31

in the menu under

softkey.

Type

.

The selection menu for configuring the frequency sweep will appear.

¾ In the menu under

¾ In the menu under

¾ Press

ESC

twice.

State

, press

POWER [dBm],

ENTER

to activate the frequency sweep.

set the desired output level of the R&S SMU.

This will cause the two menus to disappear.

¾ Press the

EXT SRC ON OFF

softkey.

The green marker will switch from OFF to ON and the frequency sweep will be initiated.

3. Set the frequency range

¾ Press the

FREQ

hotkey.

The softkeys for entering the sweep frequencies will appear.

¾ Press the

Enter the start frequency in the field, e.g.

¾ Press the

Enter the stop frequency in the field, e.g.

START

STOP

softkey.

softkey.

2100 MHz

2180 MHz

.

.

4. Set the number of measurement points in the sweep (opt.)

You can skip this item if you do not wish to change the default setting for the number of measurement
points (= 625).

1166.1560.12 3.4 E-1

R&S FSMU-W Correction of the Frequency Response of the Test Setup

¾ Press the

SWEEP

hotkey.

The softkeys for configuring the sweep will appear.

¾ Press the

Manually enter the desired number of points in the input field, e.g.

SWEEP POINTS

softkey.

625

or set a value using the
rotary knob.
You can only enter a limited range of measurement points. The R&S FSQ automatically adjusts
your input to the closest possible value. It indicates this by displaying “Value Adjusted” in the
input field. The range of possible values is from 155 to 2501 measurement points.

Note: A maximum of 625 values can be transferred to the R&S FSQ’s transducer tables.

5. Set the R&S SMU’s output power (opt.)

You can skip this item if the power entered under item 2 is already correct.

¾ Press the

NETWORK

hotkey.

The softkeys for configuring the network mode will appear.

¾ Press the

Set the desired output power in the input field, e.g. 0

SOURCE POWER

softkey.

dBm

.

6. Set the R&S FSQ’s drive level (opt.)

You can skip this item if the default setting of the R&S FSQ (reference level = -20 dB, RF att. = 5 dB)
is already acceptable.

¾ Press the

AMPT

hotkey.

The softkeys for configuring the drive level of the R&S FSQ will appear.

¾ Press the

Set the desired reference level in the input field, e.g. 0

REF LEVEL

softkey.

dBm

. The reference level must be high
enough so that the R&S FSQ is not overdriven during the measurement. In other words, it needs
to be at least as high as the expected output level of the test setup.

¾ Press the

Set the desired attenuation value in the input field, e.g.

RF ATTEN MANUAL

softkey.

10 dB

.

7. Perform the normalization measurement

¾ Press the

NETWORK

hotkey (if you did not perform item 4).

The softkeys for configuring the network mode will appear.

¾ Press the

SOURCE CAL

Ø

softkey.

The softkeys for performing the calibration will appear.

¾ Press the

CAL TRANS

softkey.
The R&S FSQ will perform a sweep and transfer the result to a background memory.
The R&S FSQ will then show an image like the following example:

Fig. 3-4 Screenshot from the normalization measurement”

8. Switch on normalization

Skip this item if there is only one carrier (Single Carrier).

¾ Press the

NORMALIZE

softkey.
The softkey will be marked in green and the R&S FSQ will now be in the normalization mode. The R&S
FSQ will normalize all of the subsequent traces, i.e. it will normalize the current measured trace with

1166.1560.12 3.5 E-1

Correction of the Frequency Response of the Test Setup R&S FSMU-W

respect to the background memory stored under item 6. This will happen until you press
again.

9. Determine the position of the reference line (opt.)

You can skip this item if there are no amplifiers present in the measurement path.

¾ Press the

Enter the desired position in % in the input field or with the rotary knob, e.g. 50 %. This will shift the
position of the measurement trace on the screen so that measured values > 0 dB can also be displayed.

The R&S FSQ will show an image like the following example:

REF VALUE POSITION

softkey.

NORMALIZE

Fig. 3-5 Screenshot after normalization

Recording the Frequency Response of the Test Setup

The second step involves recording the frequency response of the test setup. This needs to be handled
separately for each measurement path. The R&S FSQ and R&S SMU are interconnected via each
measurement path with the auxiliary cable. A normalized measurement of the transmission behaviour of
the test setup is then performed. The transfer function of the measurement path is then displayed in the
trace. Fig. 3-5 shows the connections.

Fig. 3-6 Test setup when measuring the frequency response of the cable to the R&S FSQ

The frequency response measured during this step is stored in the R&S FSQ as a transducer table or
transferred to the R&S SMU as a user correction table. It can then be used for frequency correction of the
devices.

1166.1560.12 3.6 E-1

R&S FSMU-W Correction of the Frequency Response of the Test Setup

Storing the Correction Values

In the R&S FSQ:

The currently displayed measurement trace can be stored in the R&S FSQ directly as a transducer table. It
can then be used in subsequent measurements to correct the frequency response of the test setup.

The measurement trace can be saved as a transducer table only if the number of sweep
points is not greater than 625.

1. Store trace values as correctiontable

¾ Press the

NETWORK

hotkey:

The softkeys for configuring the network mode will appear.

¾ Press the

SOURCE CAL Ø

softkey.

The softkeys for performing the calibration will appear.

¾ Press the

SAVE AS TRD FACTOR

softkey.

Pressing this softkey creates a transducer factor of up to 625 points out of a normalized measurement

in

SWEEP

SETUP

trace. The number of entries in the transducer table can be defined by means of the softkey

COUNT.

frequencies. The transducer factor can be edited by means of the softkey
menu.

The frequency points are spaced with equal distances between the start and stop

TRANSDUCER

SAVE AS TRD FACTOR

is available only if normalization is switched on.

In the R&S SMU:

The currently displayed measurement trace can be read out from the R&S FSQ and stored in the R&S SMU as
a user correction table. An external program is required for this purpose. The CD contains a sample program
and its source text can be found in the section on Frequency Correction of the Test Setup, page 3.8.

Using the Correction Values

In the R&S FSQ

1. Load a transducer table

¾ Press the

¾ Press the

¾ A selection window with the stored transducer tables should appear.

¾ Select the desired table using the Ø or × key and press

mark.
Press the

¾ Press the

In the R&S SMU

1. Load a transducer table

¾ Select

The menu for RF module A and the analog module will appear.

¾ Select

The menu for configuring the RF output will appear.

¾ There, select

A file selector box will appear showing the available files.

SETUP

key.

TRANSDUCER Ø

ENTER

key again to deactivate the transducer table.

ESC

key.

Config…

User Correction …

Select User Correction Data

in the

RF/A MOD A

softkey.

menu.

in the

ENTER

User Correction Data …

. Mark the selected table with the 9

menu.

1166.1560.12 3.7 E-1

Sample Program R&S FSMU-W

¾ Select the desired file and press

¾ Select

The color of the button will change to blue and “On” will be displayed. The user correction table
has now been activated.

¾ Press the

Off

in the State menu.

ESC

key.

ENTER

.

Sample Program

A function is indicated below as an example of how to read out the trace of the R&S FSQ and store it as
a user correction table in the R&S SMU.

The function checks to make sure that the following prerequisites are met:

¾ Instrument in analyzer mode (and not in the K72)
¾ Frequency sweep set with sweep > 0 Hz
¾ Max. number of points ≤ 2501 (otherwise, the trace was not recorded with tracking generator)

/* max. number of points per trace, using a tracking generator */
#define MaxNoOfPts 2501

/*************************************************************************/

int

trace2smu (char * FileName)
/*************************************************************************
* copies the contents of a trace of the FSQ
* to the SMU as a user correction table
*************************************************************************/

{

/* -------------------- variables ------------------------------------ */
/* -------------- leave the following variables untouched ----------- */
/* -------------- variables for GPIB bus ----------------------------- */

char
int
int

/* ----------------- calculation and result display ------------------ */

double
double
double
double
float
int
int
char
char

/*=================================================================== */

if

NoOfPts = 625 ;

/* ------------------- initialize FSQ ------------------------------- */

Fsmu_InitFsq(&analyzer) ;

/* trace data shall only be read in from spectrum analyzer (SAN) mode */
Fsmu_ibWrtln(analyzer, ":INSTrument:SELect?") ;
Fsmu_ibRdln (analyzer, ib_string, sizeof (ib_string)) ;

ib_string [MaxNoOfPts*20] ;/* each tracepoint having 20 chars */
analyzer ; /* GPIB handle for analyzer */
generator ; /* GPIB handle for generator */

FreqStart ; /* start in Hz */
FreqStop ; /* stop in Hz */
FreqStep ; /* step in Hz */
Freq ; /* current frequency in Hz */

levels [MaxNoOfPts] ; /* levels measured with FSQ */
fr_idx ; /* used in loops */
NoOfPts ; /* Sweep points per trace */

buffer [80] ; /* holding freqeuency information */
ResultString [1000] ; /* hold results */

(FileName == NULL) FileName = "FSMU_fsq" ;

1166.1560.12 3.8 E-1

R&S FSMU-W Sample Program

(strcmp (ib_string, "SAN")!= 0)

if
{
Fsmu_MessageBox ("*** ERROR ***",
"FSQ not in spectrum analyzer mode") ;
return
}

/* -------------------- read in start freqeuncy ---------------------- */

Fsmu_ibWrtln(analyzer, ":FREQuency:STARt?") ;
Fsmu_ibRd (analyzer, ib_string, sizeof (ib_string)) ;
FreqStart = atof (ib_string) ;

/* -------------------- read in stop freqeuncy ----------------------- */

Fsmu_ibWrtln(analyzer, ":FREQuency:STOP?") ;
Fsmu_ibRd (analyzer, ib_string, sizeof (ib_string)) ;
FreqStop = atof (ib_string) ;

/* -------------------- read in sweep points per trace --------------- */

Fsmu_ibWrtln(analyzer, "SENSe1:SWEep:POINts?") ;
Fsmu_ibRd (analyzer, ib_string, sizeof (ib_string)) ;
NoOfPts = atoi (ib_string) ;
if

(NoOfPts > MaxNoOfPts)
{
Fsmu_MessageBox ("*** ERROR ***",
"Too many trace points in FSQ; max 2501 allowed") ;
return
}

/* -------------------- calculate frequency steps -------------------- */

FreqStep = (FreqStop - FreqStart) / (NoOfPts - 1) ;
if

(FreqStep < 1)
{
Fsmu_MessageBox ("*** ERROR ***",
"Span < 1 Hz; no user correction in zero span") ;
return
}

/* --------------------- read in the data ---------------------------- */

/* read them into an array, using ASCII transfer */
Fsmu_ibWrtln(analyzer, "FORM ASCII;TRACe1? TRACE1") ;
Fsmu_ibRdln (analyzer, ib_string, sizeof (ib_string)) ;

/* --------------------- convert into float array -------------------- */

Fsmu_ConvertFsqResultTrace (ib_string, levels, NoOfPts) ;

/* --------------------- close FSQ on GPIB --------------------------- */

Fsmu_CloseFsq (analyzer) ;

/* -------------------- initialize SMU ------------------------------- */

Fsmu_InitSmu(&generator) ;

/* --------------- Select (new) user correction table ---------------- */

sprintf (ib_string, ":SOURce:CORRection:CSET:SELect '%s'", FileName) ;
Fsmu_ibWrtln(generator, ib_string) ;

/* ==================== write frequencies ============================ */

/* ------------ do not set EOI after transfer ------------------------ */
Fsmu_ibEot (generator, 0) ;

/* -------------------- write frequency data ------------------------- */

FSMU_ERROR ;

FSMU_ERROR ;

FSMU_ERROR ;

1166.1560.12 3.9 E-1

Sample Program R&S FSMU-W

Fsmu_ibWrtln(generator, ":CORR:CSET:DATA:FREQ ") ;

Freq = FreqStart ;
for

(fr_idx = 1 ; fr_idx < NoOfPts ; fr_idx++)

{
sprintf (buffer, "%7.1fHz,", Freq) ;
Freq += FreqStep ;
Fsmu_ibWrtln (generator, buffer) ;
}

/* ------------------ set EOI after transfer ------------------------ */

Fsmu_ibEot (generator, 1) ;

/* ------------------ write last frequency data ---------------------- */

sprintf (buffer, "%7.1fHz", Freq) ;
Fsmu_ibWrtln (generator, buffer) ;

/* ==================== write levels:: invert sign =================== */

/* ------------ do not set EOI after transfer ------------------------ */
Fsmu_ibEot (generator, 0) ;

/* -------------------------- write level data ---------------------- */

Fsmu_ibWrtln(generator, ":CORR:CSET:DATA:POW ") ;

for

(fr_idx = 0 ; fr_idx < NoOfPts-1 ; fr_idx++)

{
sprintf (buffer, "%7.3fdB,", -levels [fr_idx]) ;
Fsmu_ibWrtln (generator, buffer) ;
}

/* ----------------- set EOI after transfer ------------------------ */

Fsmu_ibEot (generator, 1) ;

/* ----------------- write last frequency data ---------------------- */

sprintf (buffer, "%7.3fdB", -levels [fr_idx]) ;
Fsmu_ibWrtln (generator, buffer) ;

/* --------------------- close SMU on GPIB --------------------------- */

Fsmu_CloseSmu (generator) ;

/* --------------------- display result ------------------------------ */

sprintf (ResultString,
"Trace of FSQ transferred to user correction table %s",
FileName) ;

return
}

FSMU_OK ;

1166.1560.12 3.10 E-1

R&S FSMU-W Contents

Contents

4 Tests on Base Stations According to 3G Standard 3GPP-FDD ...................... 4.1

Overview of the standard ................................................................................................................4.1

Transmitter Test Cases....................................................................................................................4.9

Test Case 6.2: Base Station Output Power .............................................................................4.9

Test Objective ................................................................................................................4.9

Test Setup......................................................................................................................4.9

Recommended Options .................................................................................................4.9

Variation in the Parameters of the Base Station............................................................4.9

Peculiarities for Multicarrier .........................................................................................4.10

Structure of the Measurement .....................................................................................4.11

Settings on the Base Station .......................................................................................4.11

Steps for Carrying Out a Measurement .......................................................................4.12

Interpretation of the Measurement Results..................................................................4.13

Triggering .....................................................................................................................4.13

Tips and Special Tricks................................................................................................4.13

Sample Program: Measurement with the Analyzer ....................................................4.16

Sample Program: Measurement with Option K9: ........................................................4.18

Test Case 6.2.2: CPICH Power Accuracy .............................................................................4.20

Test Objective ..............................................................................................................4.20

Test Setup....................................................................................................................4.20

Recommended Options ...............................................................................................4.20

Variation in the Parameters of the Base Station..........................................................4.20

Peculiarities for Multicarrier .........................................................................................4.20

Structure of the Measurement .....................................................................................4.21

Settings on the Base Station .......................................................................................4.22

Steps for Carrying Out a Measurement .......................................................................4.22

Interpretation of the Measurement Results..................................................................4.23

Tip and Special Tricks..................................................................................................4.23

Sample Program ..........................................................................................................4.24

Test Case 6.3: Frequency Error.............................................................................................4.27

Test Objective ..............................................................................................................4.27

Test Setup....................................................................................................................4.27

Test Case 6.4.2: Power Control Steps...................................................................................4.28

Test Objective ..............................................................................................................4.28

Performing the Test .....................................................................................................4.29

Test Setup....................................................................................................................4.31

Recommended Options ...............................................................................................4.31

Test Case Wizard Panel ..............................................................................................4.32

Variation in the Parameters of the Base Station..........................................................4.37

Peculiarities for Multicarrier .........................................................................................4.37

Structure of the Measurement .....................................................................................4.38

Settings on the Base Station .......................................................................................4.38

Steps for Carrying Out a Measurement .......................................................................4.39

Interpretation of the Measurement Results..................................................................4.46

Tips and Special Tricks................................................................................................4.47

Sample Program – Signal Generation with the Generator; Measurement with the

Analyzer .......................................................................................................................4.47

Test Case 6.4.3: Power Control Dynamic Range ..................................................................4.62

Test Objective ..............................................................................................................4.62

Test Setup....................................................................................................................4.62

Recommended Options ...............................................................................................4.62

Variation in the Parameters of the Base Station..........................................................4.62

1166.1560.42 I-4.1 E-1

Contents R&S FSMU-W

Peculiarities for Multicarrier .........................................................................................4.63

Structure of the Measurement .....................................................................................4.64

Settings on the Base Station .......................................................................................4.65

Steps for Carrying Out a Measurement .......................................................................4.65

Interpretation of the Measurement Results..................................................................4.67

Tips and Special Tricks................................................................................................4.67

Sample Program ..........................................................................................................4.68

Test Case 6.4.4: Total Power Dynamic Range ......................................................................4.73

Test Objective ..............................................................................................................4.73

Test Setup....................................................................................................................4.73

Test Case 6.5.1: Occupied Bandwidth...................................................................................4.74

Test Objective ..............................................................................................................4.74

Test Setup....................................................................................................................4.74

Variation in the Parameters of the Base Station..........................................................4.74

Peculiarities for Multicarrier .........................................................................................4.74

Structure of the Measurement .....................................................................................4.75

Settings on the Base Station .......................................................................................4.76

Steps for Carrying Out a Measurement .......................................................................4.76

Interpretation of the Measurement Results..................................................................4.77

Tips and Special Tricks................................................................................................4.77

Sample Program: Measurement with the Analyzer .....................................................4.78

Test Case 6.5.2.1: Spectrum Emission Mask ........................................................................4.80

Test Objective ..............................................................................................................4.80

Test Setup....................................................................................................................4.80

Recommended Options ...............................................................................................4.80

Variation in the Parameters of the Base Station..........................................................4.80

Peculiarities for Multicarrier .........................................................................................4.80

Structure of the Measurement .....................................................................................4.81

Settings on the Base Station .......................................................................................4.82

Steps for Carrying Out a Measurement .......................................................................4.82

Interpretation of the Measurement Results..................................................................4.84

Tips and Special Tricks................................................................................................4.85

Sample Program ..........................................................................................................4.88

Test Case 6.5.2.2: Adjacent Channel Leakage Power Ratio (ACLR) ...................................4.93

Test Objective ..............................................................................................................4.93

Test Setup....................................................................................................................4.93

Recommended Options ...............................................................................................4.93

Variation in the Parameters of the Base Station..........................................................4.93

Peculiarities for Multicarrier .........................................................................................4.93

Structure of the Measurement .....................................................................................4.95

Settings on the Base Station .......................................................................................4.95

Steps for Carrying Out a Measurement .......................................................................4.96

Interpretation of the Measurement Results..................................................................4.97

Tips and Special Tricks................................................................................................4.97

Sample Program: Measurement with the Analyzer .....................................................4.99

Test Case 6.5.3: Spurious Emissions ..................................................................................4.103

Test Objective ............................................................................................................4.103

Example .....................................................................................................................4.103

Test Setup..................................................................................................................4.103

Recommended Options .............................................................................................4.104

Variation in the Parameters of the Base Station........................................................4.104

Peculiarities for Multicarrier .......................................................................................4.104

Structure of the Measurement ...................................................................................4.105

Settings on the Base Station .....................................................................................4.105

Steps for Carrying Out a Measurement .....................................................................4.106

Tips and Special Tricks..............................................................................................4.111

Sample Program ........................................................................................................4.112

1166.1560.42 I-4.2 E-1

R&S FSMU-W Contents

Test Case 6.6: Transmit Intermodulation .............................................................................4.125

Test Objective ............................................................................................................4.125

Test Setup..................................................................................................................4.125

Recommended Options .............................................................................................4.127

Test Case Wizard Panel ............................................................................................4.127

Variation in the Parameters of the Base Station........................................................4.130

Structure of the Measurement ...................................................................................4.131

Settings on the Base Station .....................................................................................4.132

Steps for Carrying Out a Measurement .....................................................................4.132

Interpretation of the Measurement Results................................................................4.133

Sample Program ........................................................................................................4.133

Test Case 6.7.1: Error Vector Magnitude (EVM) .................................................................4.137

Test Objective ............................................................................................................4.137

Test Setup..................................................................................................................4.138

Variation in the Parameters of the Base Station........................................................4.138

Peculiarities for Multicarrier .......................................................................................4.139

Peculiarities for Diversity............................................................................................4.139

Structure of the Measurement ...................................................................................4.140

Settings on the Base Station .....................................................................................4.141

Steps for Carrying Out a Measurement .....................................................................4.141

Interpretation of the Measurement Results................................................................4.143

Tips and Special Tricks..............................................................................................4.144

Sample Program ........................................................................................................4.145

Test Case 6.7.2: Peak Code Domain Error .........................................................................4.149

Test Objective ............................................................................................................4.149

Test Setup..................................................................................................................4.149

Recommended Options .............................................................................................4.149

Variation in the Parameters of the Base Station........................................................4.149

Peculiarities for Multicarrier .......................................................................................4.150

Structure of the Measurement ...................................................................................4.151

Settings on the Base Station .....................................................................................4.151

Steps for Carrying Out a Measurement .....................................................................4.152

Interpretation of the Measurement Results................................................................4.153

Tips and Special Tricks..............................................................................................4.153

Sample Program ........................................................................................................4.154

Receiver Test Cases ....................................................................................................................4.157

Test Case 7.2: Reference Sensitivity Level .........................................................................4.157

Test Purpose..............................................................................................................4.157

Test Setup..................................................................................................................4.157

Recommended Options .............................................................................................4.157

Test Case Wizard Panel ............................................................................................4.158

Variation in the Parameters of the Base Station........................................................4.161

Structure of the Measurement ...................................................................................4.161

Settings on the Base Station .....................................................................................4.162

Steps for Carrying Out a Measurement .....................................................................4.162

Interpretation of the Measurement Results................................................................4.163

Tips and Special Tricks..............................................................................................4.163

Sample Program ........................................................................................................4.163

Test Case 7.3: Dynamic Range ...........................................................................................4.167

Test Purpose..............................................................................................................4.167

Test Setup..................................................................................................................4.167

Recommended Options .............................................................................................4.167

Test Case Wizard Panel ............................................................................................4.168

Variation in the Parameters of the Base Station........................................................4.171

Structure of the Measurement ...................................................................................4.171

Settings on the Base Station .....................................................................................4.172

Steps for Carrying Out a Measurement .....................................................................4.172

1166.1560.42 I-4.3 E-1

Contents R&S FSMU-W

Interpretation of the Measurement Results................................................................4.172

Tips and Special Tricks..............................................................................................4.173

Sample Program ........................................................................................................4.173

Test Case 7.4: Adjacent Channel Selectivity .......................................................................4.177

Test Purpose..............................................................................................................4.177

Test Setup..................................................................................................................4.177

Recommended Options .............................................................................................4.177

Test Case Wizard Panel ............................................................................................4.178

Variation in the Parameters of the Base Station........................................................4.181

Structure of the Measurement ...................................................................................4.182

Settings on the Base Station .....................................................................................4.182

Steps for Carrying Out a Measurement .....................................................................4.183

Interpretation of the Measurement Results................................................................4.183

Tips and Special Tricks..............................................................................................4.183

Sample Program ........................................................................................................4.184

Test Case 7.5: Blocking Characteristics ..............................................................................4.188

Test Purpose..............................................................................................................4.188

Test Setup..................................................................................................................4.188

Recommended Options .............................................................................................4.188

Test Case Wizard Panel ............................................................................................4.189

Variation in the Parameters of the Base Station........................................................4.198

Structure of the Measurement ...................................................................................4.199

Settings on the Base Station .....................................................................................4.199

Steps for Carrying Out a Measurement .....................................................................4.200

Interpretation of the Measurement Results................................................................4.200

Tips and Special Tricks..............................................................................................4.201

Sample Program ........................................................................................................4.201

Test Case 7.6: Intermodulation Characteristics ...................................................................4.205

Test Purpose..............................................................................................................4.205

Test Setup..................................................................................................................4.205

Recommended Options .............................................................................................4.205

Test Case Wizard Panel ............................................................................................4.206

Variation in the Parameters of the Base Station........................................................4.210

Structure of the Measurement ...................................................................................4.211

Settings on the Base Station .....................................................................................4.212

Steps for Carrying Out a Measurement .....................................................................4.212

Interpretation of the Measurement Results................................................................4.212

Tips and Special Tricks..............................................................................................4.213

Sample Program ........................................................................................................4.213

Test Case 7.8: Verification of Internal BER .........................................................................4.217

Test Purpose..............................................................................................................4.217

Test Setup..................................................................................................................4.217

Recommended Options .............................................................................................4.217

Test Case Wizard Panel ............................................................................................4.218

Variation in the Parameters of the Base Station........................................................4.221

Structure of the Measurement ...................................................................................4.222

Settings on the Base Station .....................................................................................4.222

Steps for Carrying Out a Measurement .....................................................................4.223

Interpretation of the Measurement Results................................................................4.223

Tips and Special Tricks..............................................................................................4.223

Sample Program ........................................................................................................4.224

Test Case 8.2.1: Demodulation of DCH in Static Propagation Conditions............................4.228

Test Purpose..............................................................................................................4.228

Test Setup..................................................................................................................4.228

Recommended Options .............................................................................................4.228

Test Case Wizard Panel ............................................................................................4.229

Variation in the Parameters of the Base Station........................................................4.232

1166.1560.42 I-4.4 E-1

R&S FSMU-W Contents

Structure of the Measurement ...................................................................................4.233

Settings on the Base Station .....................................................................................4.234

Steps for Carrying Out a Measurement .....................................................................4.234

Interpretation of the Measurement Results................................................................4.235

Tips and Special Tricks..............................................................................................4.235

Sample Program ........................................................................................................4.235

Test Case 8.3.1: Demodulation of DCH in Multipath Fading Case 1 Conditions ................4.239

Recommended Options .............................................................................................4.239

Test Case 8.3.2: Demodulation of DCH in Multipath Fading Case 2 Conditions ................4.240

Recommended Options .............................................................................................4.240

Test Case 8.3.3: Demodulation of DCH in Multipath Fading Case 3 Conditions ................4.241

Recommended Options .............................................................................................4.241

Test Case 8.3.4: Demodulation of DCH in Multipath Fading Case 4 Conditions ................4.242

Recommended Options .............................................................................................4.242

Test Case 8.4: Demodulation of DCH in Moving Propagation Conditions .......................4.243

Recommended Options .............................................................................................4.243

Test Case 8.5: Demodulation of DCH in Birth/Death Propagation Conditions .................4.244

Recommended Options .............................................................................................4.244

Test Case 8.6: Verification of Internal BLER .......................................................................4.245

Test Purpose..............................................................................................................4.245

Test Setup..................................................................................................................4.245

Recommended Options .............................................................................................4.246

Test Case Wizard Panel ............................................................................................4.246

Variation in the Parameters of the Base Station........................................................4.249

Structure of the Measurement ...................................................................................4.250

Settings on the Base Station .....................................................................................4.251

Steps for Carrying Out a Measurement .....................................................................4.251

Interpretation of the Measurement Results................................................................4.252

Tips and Special Tricks..............................................................................................4.252

Sample Program ........................................................................................................4.252

Test Case 8.8.1: RACH Preamble Detection in Static Propagation Conditions ..................4.256

Test Purpose..............................................................................................................4.256

Test Setup..................................................................................................................4.256

Recommended Options .............................................................................................4.256

Test Case Wizard Panel ............................................................................................4.257

Variation in the Parameters of the Base Station........................................................4.260

Structure of the Measurement ...................................................................................4.261

Settings on the Base Station .....................................................................................4.262

Steps for Carrying Out a Measurement .....................................................................4.262

Interpretation of the Measurement Results................................................................4.263

Tips and Special Tricks..............................................................................................4.263

Sample Program ........................................................................................................4.263

Test Case 8.8.2: RACH Preamble Detection in Multipath Fading Case 3 .........................4.267

Recommended Options .............................................................................................4.267

Test Case 8.8.3: RACH Demodulation of Message Part in Static Propagation Conditions 4.268

Test Purpose..............................................................................................................4.268

Recommended Options .............................................................................................4.268

Test Case Wizard Panel ............................................................................................4.268

Variation in the Parameters of the Base Station........................................................4.270

Structure of the Measurement ...................................................................................4.271

Settings on the Base Station .....................................................................................4.272

Steps for Carrying Out a Measurement .....................................................................4.272

Interpretation of the Measurement Results................................................................4.273

Tips and Special Tricks..............................................................................................4.273

Sample Program ........................................................................................................4.273

Test Case 8.8.4: RACH Demodulation of Message Part in Multipath Fading Case 3.........4.277

1166.1560.42 I-4.5 E-1

Contents R&S FSMU-W

Recommended Options .............................................................................................4.277

Test Case 8.9.1: CPCH Access Preamble and Collision Detection Preamble Detection in Static

Propagation Conditions .............................................................................4.277

Test Case 8.9.2: CPCH Access Preamble and Collision Detection Preamble Detection in

Multipath Fading Case 3 ..........................................................................4.277

Test Case 8.9.3: Demodulation of CPCH Message in Static Propagation Conditions........4.278

Test Case 8.9.4: Demodulation of CPCH Message in Multipath Fading Case 3 ...............4.279

1166.1560.42 I-4.6 E-1

R&S FSMU-W Overview of the standard

List of illustrations

Fig. 4-1

Fig. 4-2 Test setup for “Base station maximum output power”.......................................................... 4.9

Fig. 4-3 Configuration of a multicarrier signal for measurement of the output power ..................... 4.10

Fig. 4-4 Structure of measurement procedure “Base station maximum output power”................... 4.11

Fig. 4-5 Measuring the output power ............................................................................................... 4.12

Fig. 4-6 Test setup for “Base station output power” with Option K9 ................................................ 4.14

Fig. 4-4 Configuration of a multicarrier signal for measurement of the output power ..................... 4.21

Fig. 4-5 Measuring the CPICH power.............................................................................................. 4.23

Fig. 4-6 “Power control on the downlink“ ......................................................................................... 4.28

Fig. 4-7 Plot of the code domain power in the “alternating power control steps.............................. 4.30

Fig. 4-8 Plot of the code domain power in the “alternating power control steps” test ..................... 4.30

Fig. 4-9 Test setup for “Power control steps” .................................................................................. 4.31

Fig. 4-10 Test case panel for ‘According to Standard’....................................................................... 4.32

Fig. 4-11 Test case panel for ‘User Definable’ .................................................................................. 4.33

Fig. 4-12 Routing of baseband A to RF port A .................................................................................. 4.36

Fig. 4-13 Routing of baseband A to RF port B .................................................................................. 4.36

Fig. 4-14 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A ............ 4.37

Fig. 4-15 Configuration of a multicarrier signal for measurement of the dynamic range of

Fig. 4-16 Structure of the “Power Control Steps“ measurement ....................................................... 4.38

Fig. 4-17 Measurement of the “aggregated power control steps” ..................................................... 4.43

Fig. 4-18 Measurement of the “alternating power control steps”....................................................... 4.46

Fig. 4-19 Measuring the “Power control dynamic range”................................................................... 4.46

Fig. 4-20 Test setup for “Power control dynamic range” ................................................................... 4.62

Fig. 4-21 Configuration of a multicarrier signal for measurement of the dynamic range of the channel power

Fig. 4-22 Structure of the “Power Control Dynamic Range” measurement....................................... 4.64

Fig. 4-23 Measuring the “Power control dynamic range”................................................................... 4.66

Fig. 4-24 Measuring the “Power control dynamic range”................................................................... 4.67

Fig. 4-25 Test setup for “Occupied bandwidth” ................................................................................. 4.74

Fig. 4-26 Structure of the “Occupied bandwidth” measurement........................................................ 4.75

Fig. 4-27 Measuring the “Occupied Bandwidth“ ................................................................................ 4.77

Fig. 4-28 Test setup for “Spectrum Emission Mask” ......................................................................... 4.80

Fig. 4-29 Structure of the “Spectrum emission mask” measurement ................................................ 4.81

Fig. 4-30 Measurement of the spectrum emission mask ................................................................... 4.83

Fig. 4-31 Measurement of the spectrum emission mask ................................................................... 4.84

Fig. 4-32 Measurement of the peak list for the spectrum emission mask ......................................... 4.84

Fig. 4-33 Ranges during measurement of the spectrum emission mask .......................................... 4.85

Fig. 4-34 Parameters for computing the peak list for the spectrum emission mask.......................... 4.86

Fig. 4-35 Test setup for “Adjacent Channel Leakage Power Ratio (ACLR) ...................................... 4.93

Fig. 4-36 Adjacent Channel Leakage Power Ratio (ACLR) with four carriers................................... 4.94

Fig. 4-37 tructure of the “Adjacent Channel Leakage power Ratio (ACLR)“ measurement .............. 4.95

Fig. 4-38 Measurement of the ACLR for a single carrier base station .............................................. 4.97

Fig. 4-39 Measurement of the ACLR for a multi carrier base station ................................................ 4.97

Fig. 4-40 Measuring the ACLR with “Fast ACP“................................................................................ 4.98

Fig. 4-41 Measuring the ACLR with “Fast ACP“................................................................................ 4.99

Fig. 4-42 Test setup for “Spurious emissions’” ................................................................................ 4.103

Fig. 4-43 Test setup for “Protection of other services, co-existance und co-location” .................... 4.104

Fig. 4-44 Measurement range for spurious emissions (single carrier) ............................................ 4.104

Fig. 4-45 Measurement range for spurious emissions (multicarrier) ............................................... 4.105

Fig. 4-46 Structure of the “Spurious emissions“ measurement ....................................................... 4.105

Fig. 4-47 Limit line for “Spurious emissions“ ................................................................................... 4.106

Fig. 4-48 Form for entering sweep lists” .......................................................................................... 4.107

Fig. 4-49 Ranges 6 and 7 when entering the sweep lists ................................................................ 4.108

Fig. 4-50 Ranges 6 and 7 when entering the sweep lists ................................................................ 4.108

Fig. 4-51 User input when making measurements with sweep lists ................................................ 4.109

Code Domain Power of a signal containing 3 data channels ............................................... 4.3

the channel power” ............................................................................................................. 4.37

............................................................................................................................................ 4.63

1166.1560.42 I-4.7 E-1

Contents R&S FSMU-W

Fig. 4-52

Fig. 4-53 Display of the peak list for spurious emissions................................................................. 4.110

Fig. 4-54 Limits near the transmit band for spurious emissions ...................................................... 4.112

Fig. 4-55 Test setup for transmit intermodulation ............................................................................ 4.125

Fig. 4-56 Test setup for “Transmit intermodulation in the case of protection of other services, co-

Fig. 4-57 Test case panel for ‘According to Standard’..................................................................... 4.127

Fig. 4-58 Test case panel for ‘User Definable’ ................................................................................ 4.128

Fig. 4-59 Routing of baseband A to RF port A ................................................................................ 4.130

Fig. 4-60 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.130

Fig. 4-61 Structure of the "Transmit Intermodulation” measurement ............................................. 4.131

Fig. 4-62 Test setup for “Error Vector Magnitude’” .......................................................................... 4.138

Fig. 4-63 Test setup for “Error Vector Magnitude’” .......................................................................... 4.138

Fig. 4-64 Configuration of a multicarrier signal for measurement of the EVM” ............................... 4.139

Fig. 4-65 Structure of the “Error Vector Magnitude, EVM” measurement ....................................... 4.140

Fig. 4-66 Measurement of the composite EVM, maximum power and frequency error .................. 4.142

Fig. 4-67 Measurement of the composite EVM for all timeslots ...................................................... 4.143

Fig. 4-68 Measurement of the total power for all timeslots .............................................................. 4.144

Fig. 4-69 Test setup for “Peak Code Domain Error” ........................................................................ 4.149

Fig. 4-70 Structure of the “Peak Code Domain Error” measurement .............................................. 4.151

Fig. 4-71 easuring the CPICH power............................................................................................... 4.153

Fig. 4-72 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.157

Fig. 4-73 Test case panel for ‘According to Standard’..................................................................... 4.158

Fig. 4-74 Test case panel for ‘User Definable’ ................................................................................ 4.158

Fig. 4-75 Routing of baseband A to RF port A ................................................................................ 4.160

Fig. 4-76 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.160

Fig. 4-77 Structure of the "Reference Sensitivity Level” measurement.......................................... 4.161

Fig. 4-78 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.167

Fig. 4-79 Test case panel for ‘According to Standard’..................................................................... 4.168

Fig. 4-80 Test case panel for ‘User Definable’ ................................................................................ 4.168

Fig. 4-81 Routing of baseband A to RF port A ................................................................................ 4.170

Fig. 4-82 Routing of baseband A to RF port B ................................................................................ 4.170

Fig. 4-83 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.171

Fig. 4-84 Structure of the "Dynamic Range” measurement............................................................ 4.171

Fig. 4-85 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.177

Fig. 4-86 Test case panel for ‘According to Standard’..................................................................... 4.178

Fig. 4-87 Test case panel for ‘User Definable’ ................................................................................ 4.179

Fig. 4-88 Routing of baseband A to RF port A ................................................................................ 4.181

Fig. 4-89 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.181

Fig. 4-90 Structure of the "Adjacent Channel Selectivity” measurement......................................... 4.182

Fig. 4-91 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.188

Fig. 4-92 Test case panel for ‘According to Standard’..................................................................... 4.189

Fig. 4-93 Test case panel for ‘User Definable’ ................................................................................ 4.190

Fig. 4-94 Routing of baseband A to RF port A ................................................................................ 4.197

Fig. 4-95 Routing of baseband A to RF port B ................................................................................ 4.197

Fig. 4-96 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.198

Fig. 4-97 Structure of the "Blocking Characteristics” measurement............................................... 4.199

Fig. 4-98 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.205

Fig. 4-99 Test case panel for ‘According to Standard’..................................................................... 4.206

Fig. 4-100 Test case panel for ‘User Definable’ ................................................................................ 4.207

Fig. 4-101 Routing of baseband A to RF port B ................................................................................ 4.210

Fig. 4-102 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.210

Fig. 4-103 Structure of the "Intermodulation Characteristics” measurement.................................... 4.211

Fig. 4-104 BER insertion into the information data ............................................................................ 4.217

Fig. 4-105 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.217

Fig. 4-106 Test case panel for ‘According to Standard’..................................................................... 4.218

Fig. 4-107 Test case panel for ‘User Definable’ ................................................................................ 4.218

Fig. 4-108 Routing of baseband A to RF port A in case of BER test................................................. 4.220

Peaks for “Spurious emissions” ........................................................................................ 4.110

existance und co-location” ................................................................................................ 4.126

1166.1560.42 I-4.8 E-1

R&S FSMU-W Contents

Fig. 4-109

Fig. 4-110 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.221

Fig. 4-111 Structure of the "Verification of the Internal BER Calculation” measurement ................. 4.222

Fig. 4-112 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.228

Fig. 4-113 Test case panel for ‘According to Standard’..................................................................... 4.229

Fig. 4-114 Test case panel for ‘User Definable’ ................................................................................ 4.230

Fig. 4-115 Routing of baseband A to RF port A and B ...................................................................... 4.232

Fig. 4-116 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.232

Fig. 4-117 Structure of the "Demodulation of DCH in Static Propagation Conditions” measurement..... 4.233

Fig. 4-118 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.245

Fig. 4-119 Test case panel for ‘According to Standard’..................................................................... 4.246

Fig. 4-120 Test case panel for ‘User Definable’ ................................................................................ 4.247

Fig. 4-121 Routing of baseband A to RF port A and B in case of BLER test .................................... 4.248

Fig. 4-122 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.249

Fig. 4-123 Structure of the "Verification of the Internal BLER Calculation” measurement ............... 4.250

Fig. 4-124 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.256

Fig. 4-125 Test case panel for ‘According to Standard’..................................................................... 4.257

Fig. 4-126 Test case panel for ‘User Definable’ ................................................................................ 4.258

Fig. 4-127 Routing of baseband A to RF port A and B ...................................................................... 4.260

Fig. 4-128 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A and B 4.260

Fig. 4-129 Test Setup according to TS 25.141 for Baseband A Signal Routing to RF Port A .......... 4.260

Fig. 4-130 Structure of the "RACH Preamble Detection in Static Propagation Conditions”

Fig. 4-131 Test case panel for ‘According to Standard’..................................................................... 4.269

Fig. 4-132 Test case panel for ‘User Definable’ ................................................................................ 4.269

Fig. 4-133 Structure of the "Demodulation of RACH Message in Static Propagation Conditions”

List of Tables

Table 4-1

Table 4-2 Standard configuration of R&S FSQ .................................................................................. 4.6

Table 4-3 Standard configuration of R&S SMU ................................................................................. 4.6

Table 4-4 Extension options of R&S SMU ......................................................................................... 4.6

Table 4-5 Required options on R&S SMU to perform the tests ......................................................... 4.7

Table 4-6 Settings to make on the base station............................................................................. 4.141

Table 4-7 Interferer power level ambiguity in case of colocated basestation interference ............ 4.192

Table 4-8 Blocking characteristics for Wide Area BS..................................................................... 4.193

Table 4-9 Blocking characteristics for Medium Range BS ............................................................. 4.194

Table 4-10 Blocking characteristics for Local Area BS .................................................................... 4.195

Table 4-11 Blocking performance requirement for Wide Area BS when co-located with BS in

Table 4-12 Blocking performance requirement for Medium Range BS when co-located with BS in

Table 4-13 Blocking performance requirement for Local Area BS when co-located with BS in

Table 4-14 Blocking performance requirement (narrowband) for Wide Area BS ............................ 4.196

Table 4-15 Blocking performance requirement (narrowband) for Medium Range BS..................... 4.196

Table 4-16 Blocking performance requirement (narrowband) for Local Area BS ............................ 4.197

Table 4-17 Eb/N0 test requirements in AWGN channel .................................................................... 4.232

Table 4-18 Eb/N0 Test requirements in multipath Case 3 channel.................................................. 4.241

Table 4-18 UL Signal levels for different data rates ......................................................................... 4.248

Routing of baseband A to RF port B in case of BER test................................................. 4.220

measurement.....................................................................................................................4.261

measurement.................................................................................................................... 4.271

Frequency bands ............................................................................................................... 4.1

other bands .................................................................................................................... 4.195

other bands .................................................................................................................... 4.196

other bands .................................................................................................................... 4.196

1166.1560.42 I-4.9 E-1

R&S FSMU-W Overview of the standard

4 Tests on Base Stations According to 3G Standard

3GPP-FDD

Overview of the standard

In the present document, measurements are described according to the 3G standard 3GPP-FDD. This
standard defines measurements in frequency, time and code domain on signals having W-CDMA
(wideband code division multiple access).
The signals of 3GPP-FDD are transmitted with a data rate of 3.84 MHz, the channel spacing is normally
5 MHz. For transmission the signal is passed through a root raised cosine filter of roll off 0.22. The
receiver uses the same filter to ensure intermodulation-free decision points.

For 3GPP-FDD, several paired frequency bands are used. The following table shows start and stop
frequencies of both uplink (UE transmit, node B receive) and downlink (node B transmit, UE receive)
frequency bands according to 3GPP [1].

Table 4-1 Frequency bands

Operating
band

I 1920 MHz to 1980 MHz 2110 MHz to 2170 MHz

II 1850 MHz to 1910 MHz 1930 MHz to 1990 MHz

III 1710 MHz to 1785 MHz 1805 MHz to 1880 MHz

IV 1710 MHz to 1755 MHz 2110 MHz to 2155 MHz

V 824 MHz to 849MHz 869 MHz to 894MHz

VI 830 MHz to 840 MHz 875 MHz to 885 MHz

The measurements that have to be performed according to 3GPP in order to verify proper operation of FDD
systems apply to appropriate frequencies in the bottom, middle and top of the operating frequency band of
the base station (BS). In this document, these are denoted as RF channels B (bottom), M (middle) and
T (top). The interpretation of B, M, and T in case the BS is declared to support N>1 carriers, numbered from
1 to N, is as follows:

• For testing at B,

– the carrier of lowest frequency shall be centered on B;

• For testing at M,

– if the number N of carriers supported is odd, the carrier (N+1)/2 shall be centered on M,
– if the number N of carriers supported is even, the carrier N/2 shall be centered on M;

• For testing at T,

– the carrier of highest frequency shall be centered on T.

UL frequencies
UE transmit, node B receive

DL frequencies
UE receive, node B transmit

When a test is performed by a test laboratory, the UARFCNs to be used for RF channels B, M and T shall
be specified by the laboratory. The laboratory may consult with operators, the manufacturer or other bodies.
When a test is performed by a manufacturer, the UARFCNs to be used for RF channels B, M and T
may be specified by an operator.

In order to make sure that the signal can be properly received by node B in the case of fading
conditions, 3GPP defines the use of transmit diversity while sending 3GPP-FDD signals. Transmit
diversity means sending the same signal on two antennas at the same time, the antennas being
stationed at different places. Two forms of transmit diversity are specified by 3GPP: open loop (STTD)
and closed loop transmit diversity. Simultaneous use of STTD and closed loop modes on the same
physical channel is not allowed.

1166.1560.42 4.1 E-1

R&S Overview of the standard R&S FSMU-W

Closed loop transmit diversity
Closed loop transmit diversity is described in [25.214]. Both closed loop transmit diversity modes shall
be supported at the UE and may be supported in the UTRAN.

Open loop transmit diversity
The open loop downlink transmit diversity employs a block-coding-based space time transmit diversity
(STTD). The STTD encoding is optional in UTRAN. STTD support is mandatory at the UE.
A detailed description of open loop transmit diversity can be found in [25.211]. In this document, only
general rules of the resulting signal are stated. For a detailed description of the channel structure of a
3GPP-FDD signal, see below.
In general, open loop transmit diversity applies to data and control channels of the 3GPP-FDD signal.
For data channels, the symbols of each channel are passed through a STTD encoder. In the case of
antenna 1, the symbols remain the same as in non-diversity mode. In the case of antenna 2, the
symbols are inverted or exchanged according to the rules of the STTD encoder.
Control channels SCH use a time-switched transmit diversity (TSTD) in addition to the STTD encoding.
SCH symbols are normally sent at the beginning of each time slot. Using TSTD, SCH symbols are sent
only in every second time slot. For signals on antenna 1, SCH symbols are sent in every even time slot;
antenna 2 SCH symbols are sent in every odd time slot.
Control channel CPICH, which sends a predefined symbol sequence, uses different sequences for the
signals on both antennas.
Analyzer R&S FSQ supports the use of open loop transmit diversity, both in uplink (UE) and downlink
(BS) application. Within the application, the user has to specify the use of transmit diversity and the
antenna to be used. Once these parameters are specified, R&S FSQ will take into account all of the
rules that are connected with the transmitted signal.

To distinguish between signals from different base stations, 3GPP-FDD signals are scrambled. The
scrambling code a base station should use is defined by higher layer signalling. Scrambling is
performed on the composed signal. If a base or mobile station received a signal with a scrambling code
different from its own one, it would fail synchronization.
In 3GPP-FDD downlink – directed from the base to the mobile station – a total of 2
scrambling codes, numbered 0 to 262,142, can be generated. However, not all the scrambling codes
are used. The scrambling codes are divided into 512 sets, each of a primary scrambling code, and 15
secondary scrambling codes.

The primary scrambling codes consist of scrambling codes n = 16*i where i = 0 to 511. The i:th set of
secondary scrambling codes consists of scrambling codes 16*i+k, where k = 1 to 15.
Directed from the mobile to the base station – 3GPP-FDD uplink – the signal may be scrambled by
either long or short scrambling codes. There are 2

24

long and 224 short uplink scrambling codes. Uplink

scrambling codes are assigned by higher layers.

The long scrambling sequences are constructed from positionwise modulo 2 sum of 38400 chip
segments of two binary m-sequences generated by means of two generator polynomials of degree 25.
The resulting sequences thus constitute segments of a set of Gold sequences.
The short scrambling sequences are defined from a sequence from the family of periodically extended
S(2) codes. The n:th quaternary S(2) sequence, 0 ≤ n ≤ 16777215, is obtained by modulo 4 addition of
three sequences, a quaternary sequence and two binary sequences and, where the initial loading of the
three sequences is determined from the code number.

The scrambling code used by the device under test must always be specified while 3GPP-FDD signals are
being measured on FSQ. The scrambling codes are entered in hexadecimal values within the options for
3GPP-FDD uplink and 3GPP-FDD downlink. In downlink, FSQ does not separate between primary and
secondary scrambling code numbers. So, if a signal has primary scrambling code 0, 0 shall be entered for
the scrambling code into FSQ. If the signal uses secondary scrambling codes 0 to 14, which are connected
with primary scrambling code 0, scrambling code numbers 1 to 15 shall be entered. Primary scrambling
code 1 has the number 16, the corresponding secondary code range from 17 to 31, and so on.

Whereas a 3GPP-FDD uplink signal contains the signal from one mobile station only, a 3GPP-FDD downlink
signal normally is composed of signals (channels) used for several mobile stations. In order to make sure each

18

-1 = 262,143

1166.1560.42 4.2 E-1

R&S FSMU-W Overview of the standard

mobile station can only receive that part of the composed signal that is designated for it, the several channels
are each spread with a code out of a set of orthogonal spreading codes. In general the number of spreading
codes that can be assigned corresponds to the length of the spreading codes used within the system to
ensure orthogonality between the channels. For example, if a spreading code length of 512 (the maximum
length for 3GPP-FDD) is used, 512 spreading codes corresponding to 512 customer signals can be assigned.

To set the transmission rate of the channels exactly to the needs of the customer, 3GPP-FDD specifications
define the use of varying symbol rates. The range of possible symbol rates is from 7.5 ksps for the slowest
channel to 960 ksps for the fastest channel. Since all of the channels need to be transmitted with the same
overall data rate while the composite signal is being composed , channels of different symbol rates are spread
with different spreading code lengths. If, for example, a channel with 7.5 ksps symbol rate is spread with a code
of length 512, a channel with 15 ksps symbol rate must be spread with a code of length 256. Both channels
would then – after spreading – use the same transmission rate. As the symbol rates range from 7.5 ksps to 960
ksps the spreading code lengths range from 512 for the lowest channel to 4 for the fastest channel. If all of the
channels of different symbol rates were projected into one plane – let us say the plane of spreading factor 512,
the channels would "cover" a different number of codes there (see Fig. 4-1).

Code Power Relative

CF 1 GHz CPICH Slot 0

-7

Ref

Ref

Ref

Att*

Att*

15 dB

15 dB

1

CLRWR

16.7

16.7

16.7

dBm

dBm

dBm

-14

-21

-28

-35

-42

-49

-56

-63

SR 120 ksps

Chan Code 15

Chan Slot 0

A

Start Ch 0 Stop Ch 511

Result Summary

CF 1 GHz CPICH Slot 0

GLOBAL RESULTS FOR FRAME 0:

GLOBAL RESUL TS FOR FRAME 0:

GLOBAL RESUL TS FOR FRAME 0:

Ref

Ref

Ref

16.7

16.7

16.7

dBm

dBm

dBm

Att*

Att*

15 dB

15 dB

1

CLRWR

Total Power

Total Power

Total Power

Chip Rate Error

Chip Rate Error

Chip Rate Error

IQ Offset

IQ Offset

IQ Offset

Composite EVM

Composite EV M

Composite EV M

CPICH Slot No

CPICH Slot No

CPICH Slot No

CHANNEL RESU LTS

CHANNEL RESU LTS

CHANNEL RESU LTS

Symbol Rate

Symbol Rate

Symbol Rate

Channel Code

Channel Code

Channel Code

No of Pilot Bits

No of Pilot Bits

No of Pilot Bits

Channel Powe r Rel

Channel Powe r Rel

Channel Powe r Rel

Symbol EVM

Symbol EVM

Symbol EVM

7.72

7.72

7.72

-0.00

-0.00

-0.00

0.05

0.05

0.05

0.86

0.86

0.86

120.00

120.00

120.00

15

15

15

-9.98

-9.98

-9.98

1.42

1.42

1.42

dBm

dBm

dBm

ppm

ppm

ppm

%

%

%

%

%

%

0

0

0

ksps

ksps

ksps

8

8

8

dB

dB

dB

%rms

%rms

%rms

64 Ch/

SR 120 ksps

Chan Code 15

Chan Slot 0

Carrier Freq Error

Carrier Freq Error

Carrier Freq Error

Trigger to Frame

Trigger to Frame

Trigger to Frame

IQ Imbalance

IQ Imbalance

IQ Imbalance

Pk CDE (15 ksps)

Pk CDE (15 ksps)

Pk CDE (15 ksps)

No of Active Chan

No of Active Chan

No of Active Chan

Timing Offset

Timing Offset

Timing Offset

Channel Slot No

Channel Slot No

Channel Slot No

Modulation Ty pe

Modulation Ty pe

Modulation Ty pe

Channel Power Abs

Channel Power Abs

Channel Power Abs

Symbol EVM

Symbol EVM

Symbol EVM

603.18

603.18

603.18

4.045906

4.045906

4.045906

0.04

0.04

0.04

-60.04

-60.04

-60.04

256

256

256

QPSK

QPSK

QPSK

-11.54

-11.54

-11.54

2.74

2.74

2.74

mHz

mHz

mHz

ms

ms

ms

%

%

%

dB

dB

dB

7

7

7

Chips

Chips

Chips

0

0

0

dBm

dBm

dBm

%Pk

%Pk

%Pk

EXT

B

Fig. 4-1 Code Domain Power of a signal containing 3 data channels

As can be seen in the figure, a channel with a higher symbol rate appears in this projection larger than
a channel with a lower data rate.
Concerning orthogonality between the codes, this is ensured only for spreading codes of the same length.
Orthogonality between spreading codes of different length is possible only if the code numbers cannot be
passed back to each other. Using the projection of figure 1, this means two channels must not cover each
other. If this rule for orthogonality is not satisfied, the channels cannot be separated by despreading.

1166.1560.42 4.3 E-1

R&S Overview of the standard R&S FSMU-W

If only one spreading code length is examined, each channel using this spreading length has a special
channel number ranging from 0 to the length of the spreading code. If, for example, the plane of the
next higher spreading length is examined, this channel number would be doubled, for the code numbers
here have doubled range. The channel would, as stated before, cover two code numbers within that
plane. Projected again onto the highest spreading factor, the channel still has a special number in that
plane, which can be derived from its original channel number and its original spreading code length. In
figure 1 this can be seen, too: the channel starting at code number 240 here is of length 16 codes. That
means its spreading code length is 32 and its original channel number is 15.

On analyzer R&S FSQ the projection as in figure 1 is used to show the channels that the signal
contains. The automatism of channel numbers and their corresponding code numbers within the
projection leads to two possibilities in entering the code number of a special channel:
The code number can be entered as the original channel number, connected with the spreading code
length used (separated by comma) or as the code number it refers to in the projection onto the highest
spreading factor.

If not otherwise stated, the following rule applies for the next chapters of the present document:
A channel that is determined by the number CN;SR corresponds to a channel with channel number CN
and symbol rate SR. For channel 120;30, for example, this means:
The channel has channel number 120 and is transmitted with data rate 30 ksps, which corresponds to a
spreading length of 128.

The 3GPP-FDD signal is transmitted in frames of 10 ms. Each frame is divided in time using 15 time
slots. Thus, one time slot has a length of 266.67 µs. All signal structure, such as data, TPC and pilot
fields, refer to one time slot only and are duplicated for each time slot.
The reference for the beginning and end of one time slot is the CPICH if it is present in the signal.
Otherwise the reference is the SCH channel.

Since each of the data channels has a specified timing offset to the reference, the slots of the channels differ
from that of the reference channel. With power control, the data channels change their power at the beginning
of their slots, which means that the composed signal in one time slot may contain two power levels of each of
the data channels. Therefore, analyzer R&S FSQ has two modes of displaying the slot structure: in general, all
of the measurements that are performed for the composed signal have the slot structure of the reference
channel. All measurements that are performed for one channel only, such as measuring power control steps,
have the slot structure of that special channel. This ensures that no change of power occurs within one slot,
which would otherwise affect the measurement.

The 3GPP-FDD standard defines several test models. Each of the models is used for specified
measurements. In the following passage the test models with their structure are listed together with the
tests they shall apply to.

Test model 1:
This model shall be used for tests on:

• occupied bandwidth,

• spectrum emission mask,

• ACLR,

• spurious emissions,

• transmit intermodulation,

• base station maximum output power,

• total power dynamic range,

• frequency error,

• error vector magnitude,

• IPDL time mask.

1166.1560.42 4.4 E-1

R&S FSMU-W Overview of the standard

For this test model, 64 DPCHs at 30 ksps (SF = 128) distributed randomly across the code space at
random power levels and random timing offsets are defined so as to simulate a realistic traffic scenario
which may have a high peak to average ratio (PAR).
Considering that not every base station implementation will support 64 DPCHs, versions of this test
model containing 32 and 16 DPCHs are also specified. The tests defined using this model shall be
performed using the largest of these three options that can be supported by the equipment under test.

Test model 2:
This model shall be used for tests on:

• output power dynamics,

• CPICH power accuracy.

With this model, three DPCHs at 30 ksps (SF = 128) are defined. The code numbers of the channels
are defined in such a way that they cover the whole code space.

Test model 3:
This model shall be used for tests on:
peak code domain error.
32 DPCHs at 30 ksps (SF = 128) distributed randomly across the code space and using random timing
offsets are defined for this model. The power levels of the channels are all the same.
As with test model 1, not every base station implementation will support 32 DPCHs; therefore, a version
of this test model containing 16 DPCHs is also specified. The peak code domain error tests shall be
performed using the larger of these two options that can be supported by the equipment under test.

Test model 4:
This model shall be used for tests on:

• EVM measurement,

• total power dynamic range,

• frequency error.

For this test model, no DPCHs at all are used. The signal is composed of control channels only. Two
versions of the test model are defined, one using CPICH, the other without CPICH. In addition to
CPICH, the signal contains PCCPCH and SCH.

Test model 5:
This model shall be used for tests on:
EVM for base stations supporting HS-PDSCH transmission using 16QAM modulation (at Pmax).
This test model covers the use of HSDPA transmission. Test models 1 to 3 only use DPCHs for data
channel transmission. These channels are all QPSK modulated. Test model 5 uses in addition to these
DPCHs channels that are 16QAM modulated (HS-PDSCHs). For the test model, eight HS-PDSCHs are
defined at special code regions. In the rest of the code space, 30 DPCHs are defined and also
distributed randomly across the code space using random timing offsets. The levels are set in such a
way that all of the HS-PDSCHs have the same level. The levels of the DPCHs are randomly distributed
but all below the HS-PDSCHs.
Considering that not every base station implementation will support eight HS-PDSCHs + 30 DPCHs,
versions of this test model containing four HS-PDSCHs + 14 DPCHs and two HS-PDSCHs + six
DPCHs are also specified. The tests defined for that model shall be performed using the largest of
these three options that can be supported by the equipment under test.

The following chapters of this manual refer to the TX and RX tests that can be performed using the R&S
FSMU-W. The package R&S FSMU-W contains a R&S SMU (generator) and a R&S FSQ (analyzer).
Referring to the different frequency ranges, the models R&S FSMU-W3, R&S FSMU-W8 and R&S FSMU­W26 are available. R&S FSMU-W3 is composed of a R&S FSQ3 and a R&S SMU, R&S FSMU-W8
contains a R&S FSQ8 and a R&S FSQ and R&S FSMU-W26 contains a R&S FSQ26 and a R&S SMU.

1166.1560.42 4.5 E-1

R&S Overview of the standard R&S FSMU-W

Each model of R&S FSMU-W comes with the following configuration of R&S FSQ (Table 4-2):

Table 4-2 Standard configuration of R&S FSQ

Option Description Consisting of Description

Configuration

All of the tests described in the following chapters of this manual can be performed with this
configuration using one of the models of R&S FSMU-W. That means that no additional hardware or
software option is needed once the customer has ordered an R&S FSMU-W.

At some of the tests described in the next chapters, an additional use of analyzer option FS-K9, Power
Sensor Measurements, is described. This option can be added to the R&S FSMU-W but is not
necessarily needed for performing the tests.

The following table (Table 4-3) lists the standrad configuration for R&S SMU.

Table 4-3 Standard configuration of R&S SMU

Option Description Consisting of Description

Configuration

Most of the tests described within the next chapters of this manual can be performed with this standard
configuration. In addition to the standard configuration the following extension options are available on
R&S SMU:

Table 4-4 Extension options of R&S SMU

R&S FSQ Signal Analyzer R&S FSMU-W Standard

R&S FSP-B10

R&S FS-K72

R&S FS-K74

R&S SMU 200 A Vector Signal Generator R&S FSMU-W Standard

R&S SMU-B103

R&S SMU-B11

R&S SMU-B13

R&S SMU-K42

R&S SMU-K43

R&S SMU-K62

External Generator Control

3GPP-FDD-WCDMA Base Station Test

3GPP-FDD-HSDPA Base Station Test

HF-Path 100 kHz to 3 GHz

Universal Coder with 16 / 64 M samples

Base band module

3GPP-FDD WCDMA personality

3GPP-FDD HSDPA personality

Additive White Gaussian Noise

Option Description Consisting of Description

R&S FSMU-B1 Package for

2nd signal
generator RF path

R&S FSMU-B2 Package for

2nd signal
generator
base band

R&S FSMU-B3 Package for fading R&S SMU-B14

R&S SMU-B203

R&S SMU-B13

R&S SMU-K62

R&S SMU-B36

R&S SMU-B11

R&S SMU-K42

R&S SMU-K43

R&S SMU-B15

2xR&S SMU-K71

2nd RF path (3.0 GHz)

Base band main module

Additive white Gaussian noise

High output power

Base band generator

Digital standard 3GPP FDD

Enhanced BS tests for 3GPP FDD incl. HSDPA

Fading simulator

Fading simulator extension

Dynamic Fading

The next table lists for each test to be performed the configuration of R&S SMU needed to carry out the
measurement.

1166.1560.42 4.6 E-1

R&S FSMU-W Overview of the standard

Table 4-5 Required options on R&S SMU to perform the tests

Transmitter tests

6.2.1 Base station maximum output power R&S FSMU-W

6.2.2 CPICH power accuracy R&S FSMU-W

6.3 Frequency error R&S FSMU-W

6.4.2 Power control steps R&S FSMU-W

6.4.3 Power control dynamic range R&S FSMU-W

6.4.5 Total power dynamic range R&S FSMU-W

6.5.1 Occupied bandwidth R&S FSMU-W

6.5.2.1 Spectrum emission mask R&S FSMU-W

6.5.2.2 Adjacent channel leakage ratio (ACLR) R&S FSMU-W

6.5.3 Spurious emissions R&S FSMU-W

6.6 Transmit intermodulation R&S FSMU-W

6.7.1 Error vector magnitude (EVM) R&S FSMU-W

6.7.2 Peak code domain error R&S FSMU-W

6.7.3 Time alignment error in TX diversity R&S FSMU-W 1)

Receiver Characteristics

7.2 Reference sensitivity level R&S FSMU-W

7.3 Dynamic range R&S FSMU-W

7.4 Adjacent channel selectivity R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B2

7.5 Blocking characteristics R&S FSMU-W + R&S FSMU--B1 + R&S FSMU-B2 2)

7.6 Intermodulation characteristics R&S FSMU-W + R&S FSMU--B1 + R&S FSMU-B2

7.7 Spurious emissions R&S FSMU-W

7.8 Verification of internal BER calculation R&S FSMU-W + R&S FSMU-B1

Performance requirement

8.2 Demodulation in static propagation conditions R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3

8.3 Demodulation of DCH in multi path fading conditions R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3

8.4 Demodulation of DCH in moving propagation conditions R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3

8.5 Demodulation of DCH in birth/death propagation conditions R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3

8.6 Verification of internal BLER calculation R&S FSMU-W + R&S FSMU-B1

8.8.1 RACH preamble detection in static propagation conditions R&S FSMU-W + R&S FSMU-B1

8.8.2 RACH preamble detection in multi path fading case 3 R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3 3)

8.8.3 Demodulation of RACH message in static propagation

R&S FSMU-W + R&S FSMU-B1

conditions

8.8.4 Demodulation of RACH message in multi path fading case 3 R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3

8.9.1 CPCH AP/CD preamble detection in static propagation

R&S FSMU-W + R&S FSMU-B13)

condition

8.9.2 CPCH AP/CD preamble detection in multi path fading case 3 R&S FS MU-W + R& S FSMU-B1 + R&S FSMU-B3 3)

8.9.3 Demodulation of CPCH message in static propagation

R&S FSMU-W + R&S FSMU-B1

conditions

8.9.4 Demodulation of CPCH msg. in multi path fading case 3 R&S FSMU-W + R&S FSMU-B1 + R&S FSMU-B3

1)

Measurement can be performed as a two-step measurement.

2)

Test case partly requires large offset frequencies of interfering signal beyond R&S -SMU capabilities.

3)

Probability of false detection of preamble (Pfa) test is not supported.

3)

1166.1560.42 4.7 E-1

R&S Overview of the standard R&S FSMU-W

The next chapters of this manual describe the RX and TX tests to be performed using R&S FSMU-W.

For TX, the following tests are described:

Test case 6.2: Base Station Output Power
Test case 6.2.2: CPICH Power Accuracy
Test case 6.3.: Frequency Error
Test case 6.4.2: Power Control Steps
Test case 6.4.3: Power Control Dynamic Range
Test case 6.4.4: Total Power Dynamic Range
Test case 6.5.1: Occupied Bandwidth
Test case 6.5.2.1: Spectrum Emission Mask
Test case 6.5.2.2: Adjacent Channel Leakage Power Ration (ACLR)
Test case 6.5.3: Spurious Emissions
Test case 6.6: Transmit Intermodulation
Test case 6.7.1: Error Vector Magnitude
Test case 6.7.2: Peak Code Domain Error

For RX, the following tests are described:

Test case 7.2: Reference Sensitive Level
Test case 7.3: Dynamic Range
Test case 7.4: Adjacent Channel Selectivity
Test case 7.5: Blocking Characteristics
Test case 7.6: Intermodulation Characteristics
Test case 7.8: Verification of Internal BER
Test case 8.2.1: Demodulation of DCH in Static Propagation Conditions
Test case 8.3.1: Demodulation of DCH in Multipath Fading Case 1 Conditions
Test case 8.3.2: Demodulation of DCH in Multipath Fading Case 2 Conditions
Test case 8.3.3: Demodulation of DCH in Multipath Fading Case 3 Conditions
Test case 8.3.4: Demodulation of DCH in Multipath Fading Case 4 Conditions
Test case 8.4: Demodulation of DCH in Moving Propagation Conditions
Test case 8.5: Demodulation of DCH in Birth/Death Propagation Conditions
Test case 8.6: Verification of Internal BLER
Test case 8.8.1: RACH Preamble Detection in Static Propagation Conditions
Test case 8.8.2: RACH preamble Detection in Multipath Fading Case 3
Test case 8.8.3: RACH Demodulation of Message Part in Static Propagation Conditions
Test case 8.8.4: RACH Demodulation of Message Part in Multipath Fading Case 3
Test case 8.9.1: CPCH Access Preamble and Collision Detection Preamble Detection in Static

Propagation Conditions

Test case 8.9.2: CPCH Access Preamble and Collision Detection Preamble Detection in

Multipath Fading Case 3
Test case 8.9.3: Demodulation of CPCH Message in Static Propagation Conditions
Test case 8.9.4: Demodulation of CPCH Message in Multipath Fading Case 3

For each test the settings on R&S SMU and R&S FSQ, the steps to perform the test and the results to
be achieved are described.

1166.1560.42 4.8 E-1

R&S FSMU-W Test Case 6.2: Base Station Output Power

Transmitter Test Cases

Test Case 6.2: Base Station Output Power

Test Objective

Quotation from [1]:

The test purpose is to verify the accuracy of the maximum output power across the frequency
range and under normal and extreme conditions for all transmitters in the base station.

This test measures the maximum output power of the base station at different carrier frequencies and
compares the results against the specified limits.

Test Setup

The measurement can be performed using the standard test setup (see Chapter 3, section “Standard
Test Setup with the R&S FSQ”). Only the R&S FSQ is required to perform the measurement: Internal
triggering (“FREE RUN”) and the internal reference frequency of the R&S FSQ are sufficient.

Fig. 4-2 Test setup for “Base station maximum output power”

The input power on the R&S FSQ may not exceed 30 dBm. The value of the attenuator R1
must be chosen accordingly.

Recommended Options

The measurement can be performed without any additional options.

If you need increased measurement accuracy, we recommend the option Power Sensor Measurements
R&S FS-K9 in conjunction with the Power Sensors R&S NRP-Z11 (up to 8 GHz) or R&S NRP-N21 (up
to 18 GHz).

Variation in the Parameters of the Base Station

The measurement must be made at frequencies B, M and T.

unknown 4.9 E-1

Test Case 6.2: Base Station Output Power R&S FSMU-W

Peculiarities for Multicarrier

When measuring under multicarrier conditions, the power of one carrier is measured while the others
are switched on. The following figure represents a sample configuration:

Fig. 4-3 Configuration of a multicarrier signal for measurement of the output power

Measurement of, for example, the reduced carrier in Fig. 4-1 “Configuration of a multicarrier signal for
measurement of the output power” is possible only with a frequency-selective measuring device such
as a spectrum analyzer. A power meter is a broadband device and measures the overall signal
representing all of the carriers. This means it is not suited to this measurement.

As is explained in the section “Interpretation of the Measurement Results” on page 4.13, the R&S FSQ
measures the carrier power with a channel filter having a width of 5 MHz. This works to suppress the
adjacent carriers so that the display shows only the power of the carrier that is located at the center
frequency of the analyzer.

For automatic setting of the reference level and the input attenuator, it is necessary to switch on the
“multicarrier mode” provided by the R&S FSQ.

unknown 4.10 E-1

R&S FSMU-W Test Case 6.2: Base Station Output Power

Structure of the Measurement

The following diagram illustrates the structure of a measurement:

Note: The measurement must be made at frequencies B, M and T. This is represented in the

diagram using f={B,M,T}.

Fig. 4-4 Structure of measurement procedure “Base station maximum output power”

Settings on the Base Station

The following table lists the settings to make on the base station:

Parameter Value

Output power Maximum power

Test model TM 1

Frequency B, M and T

The other parameters such as the scrambling code, etc can be set to any value.
Set the frequency to B, M and T during the course of the measurements.

unknown 4.11 E-1

Test Case 6.2: Base Station Output Power R&S FSMU-W

Steps for Carrying Out a Measurement

1. Set the BS to the basic state

Test model 1
Set the frequency, for example, to M
Maximum output power
Any scrambling code

2. Put the R&S FSQ in the basic state for measurements on 3G base stations

See Chapter 3, section “R&S FSQ Basic State for Measurements on 3G Base Stations”.
Internal trigger (FREE RUN)
Internal reference frequency

3. Set the R&S FSQ to multicarrier mode (opt)

Note: Skip this item if there is only one carrier (Single Carrier).

¾ Press the

The softkeys for configuring the code domain parameters will appear.

¾ Press the

The side menu for the settings will open.

¾ Press the

The green marking will switch from OFF to ON, and the R&S FSQ will be in multicarrier mode.

SETTINGS

NEXT

MULTI CARR ON OFF

hotkey.

key.

softkey.

4. Set the power measurement in the R&S FSQ

¾ Press the

MEAS

key.

The softkeys for selecting measurements in spectral mode will appear.

¾ Press the

POWR Ø

softkey.
The power measurement will be performed, and the submenu for the power measurement will
appear.

5. Choose the optimum setting for the reference level and input attenuator of the R&S FSQ

¾ Press the

ADJUST REF LVL

softkey.
The R&S FSQ will make a measurement of the power of the base station and will set the
reference level and the attenuator to their optimum values.

6. Read off the result

¾ The result will be displayed continuously (see the figure below).

Fig. 4-5 Measuring the output power

unknown 4.12 E-1

R&S FSMU-W Test Case 6.2: Base Station Output Power

Interpretation of the Measurement Results

The R&S FSQ measures the carrier power of the RF signals unweighted with a 5 MHz channel filter.

BW

This works to suppress any adjacent carriers so that the display shows only the power of the carrier that
is located at the center frequency of the analyzer.

In the result, the frequency correction values set in the R&S FSQ are already taken into account so that
the displayed result can be used directly for test evaluation purposes.

MHzMHzMHzf

αα

22.0|84.3)1(7.45 =⋅+=≥=

Triggering

You must set the triggering of the R&S FSQ to FREE RUN. This is done automatically after PRESET.

Tips and Special Tricks

Setting the Input Attenuator

Setting of the attenuator is handled automatically after you press the
attenuator of the R&S FSQ is set so that the peak value of the input signal to the R&S FSQ’s mixer has
a value of less than +5 dBm.

Due to the wide dynamic range of the R&S FSQ, the current value of the attenuator is not critical as
long as the R&S FSQ is not overdriven.

See also Chapter 3, section “Obtaining an Optimum Setting for the R&S FSQ’s Attenuator”.

ADUST REF LVL

softkey. The input

Setting the Reference Level

Setting of the reference level is handled automatically after you press the

The R&S FSQ’s reference level is set so as to just avoid overdriving the instrument, i.e. the reference
level is set about 3 dB above the peak value of the signal that is present.

Due to the wide dynamic range of the R&S FSQ, the current value of the reference level is not critical
as long as the R&S FSQ is not overdriven.

See also Chapter 3, section “Obtaining an Optimum Setting for the R&S FSQ’s Reference Level”.

ADUST REF LVL

softkey.

unknown 4.13 E-1