Nokia 3G User Manual

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3G Terminology
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Your Guide to 3G

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CONTENTS

Making Mobile Multimedia a reality 4
3G Terminals 5
3G Networks 8
1G,2G,3G 12
3G Harmonisation, 3G.IP, 3GPP 13
3GPP 2, 3GPP Release 99, MC, AMPS 14
AMR, ANSI, ARIB 15
ATM, Bearer, Bluetooth, BTS 16
CDMA, cdmaOne/lS-95, CIF, Circuit switched service .17
CODEC, EDGE, EPOC 18
ETSI, FDD, GGSN, GIF 19
GPRS, GPS, GSM 1800, GSM 1900, GSM9OO 20
H.323, H.324M, HIPERLAN 21
HIPERLAN/2, HLR, HSCSD 22
IMAP4, i-mode, IMT-2000 23
IP, IPv6, IrDA 24
IrMC, IrTranP, ISDN, ITU 25
Iu, lub, lur, IWF, Java 26
JPEG, MC-CDMA, MMM 27
MMS, MPEG4, MSC, NMT 28
Packet switching service, PCN, PCS 29
PDC, PHS 30
PSTN, QCIF, QoS 31
RNC, Roaming, RRM, SGSN, SMS 32
SOHO, Streaming 33
Symbian, TACS, UC 34
TD/CDMA, TDD, TDMA 35
UMTS, URL, USIM, US-TDMA/lS-136, UTRA 36
UTRAN, VoIP, W3C 37
WAP, WCDMA-DS 38
WLAN,WML 39
XML, Digital Signature 40
Digital cash, Protocol, VHF 41

MAKING MOBILE MULTIMEDIA A REALITY

With mobile communications and the Internet coming ever closer together,
the world is quickly evolving towards the Mobile Information Society. In the
very near future, most personal communications - phone calls, images and
multimedia messaging - will be mobile.

Did you know that estimates suggest that the milestone of one billion people
in the world using a mobile phone will be reached by the end of year 2002? It
is expected that 2000 10-15% of all mobile phones sold will be Internet
capable, exceeding the sales volume of portable computers. In 2003, the
number of mobile devices capable of Internet access will exceed the number
of PCs connected to the Internet. This will have an effect on your daily life and
business, and maybe even sooner than you think.

Third Generation (3G) mobile networks will be taken into use in the beginning
of year 2002 in Europe and even earlier in Japan. From the beginning of
1990’s we witnessed how 2G phones we becoming indispensable throughout
the world. Now we predict that in the first years of the next millennium, we
will see the same happening with 3G terminals. Do you know what you need
to know in order to make the best out of 3G?

Keeping up with the latest 3G technology and service development can be
really frustrating sometimes. One of the main reasons is that no one seems to
use real words anymore. It’s like the whole world can be explained with
acronyms and nothing but acronyms. Westlake Offer this booklet in order
to provide you with a guide to 3G terminology. We hope that it helps you to
identify what is relevant in 3G and what you need to know when living and
managing your 3G life and business. Remember that 3G is the Internet in
everyone’s pocket, and much more...

3

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MOBILE INTERNET

3G migration to high-speed, packet-based data creates the conditions for the
mobile and Internet worlds to converge, providing mobile users with new
opportunities to access Internet-based services and applications. This in turn
will stimulate demand for high data rate connectivity as well as helping reduce
subscriber management costs.

Making Internet accessible through mobile devices opens a huge new business
opportunity. But because much of this information is freely available, the value
provided by the operator is based on pinpointing what is relevant. For
example, frequently used applications can be made easily accessible through
personalised portal services, where the operator can advertise new services
and attract users to test them. Location-specific data will prove to be even
more useful in offering here-and-now relevance.Another key business area for
operators will be providing secure access for employees to their own business
Intranet. Operators providing services in this segment need high-capacity
solutions with guaranteed service quality and security.

MOBILE MULTIMEDIA MESSAGING

The development of imaging and video technologies, together with the
evolution of multimedia standards, creates the environment for new
messaging services. Our multimedia messaging concept will provide users
with new ways of communicating while operators gain additional service
revenue opportunities. Soon images will enrich both voice calls and text
messaging, allowing the user not only to “listen to what I say” but also to
“see what I mean”. Messaging is similarly enhanced through images, music or
video clips.

OPEN STANDARDS AND OPERATING SYSTEMS

The development of new content and application will be an important driver
in 3G. That’s why we have strongly encouraged the establishment of open
standards and operating systems for mobile terminals, as well as the
foundation of third-party developer forums. Crucially we support three key
technology platform building blocks that provide the foundations to translate
the Mobile Information Society vision into commercial reality: WAP to provide
access to Internet content and, ultimately, the development of Multimedia
Messaging Services; Bluetooth to enable seamless interconnection with other
electronic devices; and FPOC to create an open mobile operating system that
stimulates the creation of third-party mass market applications.

4

3G NETWORKS

Be the first with the first

The Nokia 3G system is a world-class combination of network technologies,
products, operational support systems, and competent local people. Nokia
can provide operators with complete end-to-end solutions, from phones to
servers, such as roll-out and customer care services, systems integration and
end-user applications. Nokia provides 3G systems for both WCDMA and EDGE
technologies. These systems include Base Station Subsystems, Circuit and
Packet Switching Systems, Service and Network Management Systems
including Service Provisioning and Billing, and 3G Terminals.

Our position as a major supplier of infra-structure and terminals means that
we can bring in-depth experience to help those GSM and cellular network
operators that require a smooth evolution, thus protecting network
investments. The Nokia 3G system fully conforms to global standards and
consequently can minimise time to market.

As the networks evolve, it is vital that the supporting systems can be fully
trusted. It must be possible to operate any given system by using the same
processes and tools, whatever technology or end user services are deployed.
Also, it is equally vital that users experience the same or better levels of quality
when new services are introduced in the networks. With Nokia, continuity in
the management of systems and services is fully assured.

Nokia can help you plan, deploy, manage and enhance your 30 system with a
full house of service solutions. And we can offer all this with Roll-out and
Nokia Care Packages, allowing you to mix and match service options to meet
your exact needs-providing you with differentiation in the marketplace.

Nokia assures full continuity in the management of systems and services,
ensuring investment protection today and tomorrow. Our full service offering
ranges from developing end-to-end applications, to running and managing
the underlying network, to sophisticated customer care, service provision and
billing. Local service support is complemented by Nokia Online Services, a
global web-based eBusiness concept.

5

1-3

1G

1st Generation Mobile Telecommunications. First generation systems are
analog and were designed for voice transfer. AMPS, NMT, TACS, etc are
included among first generation systems. With the recent proliferation of
PDC/PHS in Japan, post-analog technology has advanced rapidly and
consequently only a very few analog systems remain in existence.

2G

2nd Generation Mobile Telecommunications. Second generation systems are
digital and are capable of providing voice/data/fax transfer as well as a range
of other value-added services. At present, second generation systems are still
evolving with ever-increasing data rates via new technologies such as HSCSD
(High Speed Circuit Switched Data) and GPRS (General Packet Radio Service).
Second generation systems include GSM, US-TDMA (lS136), cdmaOne lS-95)
and PDC. US-TDMA/PDC have been structured atop existing first generation
analog technology and are premised on compatibility and parallel operation
with analog networks. GSM/IS-95, on the other hand, are based on an entirely
new concept, and have been subject to increasing adoption worldwide.

3G

3rd Generation Mobile Telecommunications. Third generation mobile
communication systems are scheduled for operational startup in Japan and
Europe in 2001-2002. Applying high-speed data transfer and state-of-the-art
radio terminal technology, third generations systems enable multimedia and
are currently in the process of being standardised under 3GPP. Among the
three types of system to be standardised (i.e. WCDMA-DS, MC-CDMA, UTRA
TDD), Japan and Europe will adopt WCDMA-DS in a strategy to take the lead
through superior service.

3G HARMONISATION

Harmonising of UTRA and cdma2OOO (third generation system in the US). At
present, there are three coinciding technologies under third generation
systems: DS-CDMA (UTRA FDD), MC-CDMA and UTRA TDD. Current chip rate
for both UTRA FDD and TDD is 3.s8Mchips. MC-CDMA adopts the previous

3.8sMchips as is. As a result, transition from the existing 2G to 3G will be
facilitated on a worldwide level. Despite the fact that it will not comprise one
uniform system, convergence of 3G into three systems with maximum
compatibility will still enable achieving the primary 3G goal of service to users
over a seamless worldwide network.

3G.IP

Third generation internet project which will become a part of 3GPP with
release 2000.

6

7

3-A

3GPP

3rd Generation Partnership Project. 3GPP’s organisational partners have
agreed to cooperate in the formulation of technical specifications for a third
generation mobile system based on further evolved GSM core networks and
radio access technologies.

3GPP2

3rd Generation Partnership Project 2. 3GPP 2 is an effort spearheaded by the
International Committee of the American National Standards Institute’s (ANSI)
board of directors to establish a 3G Partnership Project (3GPP) for evolved
ANSI/JIA/EIA-41 “Cellular Radio Communication Intersystem Operations” network
and related RTT.

3GPP RELEASE 99

3rd Generation Partnership Project specification scheduled for release at the end
of 1999. The first commercial UMTS systems will essentially be implemented
according to this specification.

AAC

The MPEG-2 AAC (Adaptive Audio Coding) is a new audio coding standard used
in digital television systems. According to listening tests, AAC provides the same
sound quality as MP3 (MPEG1 Layer 3) with only 70% of the MP3 bit rate.

AMPS

Advanced Mobile Phone Service. Analogue cellular communications system
developed and used in the US, and which operates in the 8OOMz band. AMPS
covers the entire country, and is utilised by 80% of US mobile phone subscribers.
It has been introduced into the UK and Japan in slightly modified form as the
TACS system.

AMR

Advanced Multi Rate codec. During 1999, ETSI standardised this new speech
codec for GSM. The codec adapts its bit-rate allocation between speech and
channel coding, thereby optimising speech quality in various radio channel
conditions. For this reason, 3GPP (under which the next stage GSM speech
quality will be realised) has selected the AMR codec as an essential speech codec
for the next generation system. AMR was jointly developed by Nokia, Ericsson
and Siemens.

ANSI

American National Standards Institute. ANSI is a nonprofit organisation in the US
which pursues standardisation within the industrial sector. It is also a member of
ISO (International Standard Organisation). ANSI itself, however, does not
establish standards. Instead, it assists in reviewing proposals put forth by various
standardising bodies in the US and accordingly assigns a category code and
number after approval.

8

A-C

ARIB

Association of Radio Industries and Businesses. An incorporated body designated
by the Ministry of Posts and Communication of the Japanese government to
pursue effective radio utilisation in the radio communication and broadcast
sector. With regard to standardisation, ARIB is currently primarily engaged in
standardising procedures for IMT-2000 (next generation mobile communication
system) and digital TV broadcasting.

ATM

Asynchronous Transfer Mode. Technology for high-speed transport (up to 6.22
megabytes per second) and switching of various types of data, voice and
signals. In contrast to Synchronous Transfer Mode (STM) which always
transfers a frame whether or not data for transmission is present, ATM
transfers a cell to the network only when data to be transmitted actually
exists. Hence the dubbing “asynchronous”.

BEARER

The name of the ‘virtual bit pipe’ carrying a particular end user service

BLUETOOTH

Short range radio technology expanding wireless connectivity to personal and
business mobile devices enabling users to connect their mobile phones,
computers, printers, digital cameras and other electronic devices to one
another without cables. Bluetooth has begun to experience rapid proliferation,
and is fast becoming a defacto world-wide standard. Nokia participates as a
founding member in the Bluetooth Special Interest Group (SIG). Current
membership inSlG comprises over 1300 firms from all over the world.

BTS

Base Transceiver Station. Although specifications differ for each system, the
BTS effects radio communication with mobile stations (MS) via its respective
radio access system and transmits/receives signals to/from connected radio
network controllers (RNC) located along transmission routes.

CDMA

Code Division Multiple Access is one type of multiple access system used in
radio communication. Other multiple access methods include TDMA, FDMA,
etc.

CDMAONE/IS-95

Interim Standard-95 is one type of digital mobile phone system which applies
CDMA to realise large volume traffic and enable numerous users to access a
limited bandwidth. Also known as cdmaOne, this system is used in Hong
Kong, North and South America, Korea and Japan.

9

10

CIF

Common Intermediate Format. CIF is a video image format using 352
horizontal pixels and 288 vertical lines. The format is adopted in multimedia
communication standards.

CIRCUIT SWITCHED SERVICE

This is a data transfer communication service which (as in the case of standard
telephone service) applies circuitswitching for each call to establish a circuit
with the other party and then disconnect that circuit upon call completion.
However, circuit-switched services are losing their relevance with the
development of packet-switching as typified by communication over the
Internet.

CODEC

CODEC is an amalgam of the terms “Coder” and “Decoder” It generally
signifies the encoding device/module which carries out highly efficient
conversion processing from the basic digital signal to a compressed signal
during digitalisation of voice and picture signals. Encoding specifications for
the voice CODEC and image CODEC are stipulated by the G-series and H­series IJU-T recommendations, respectively. In the case of mobile
communication, encoding specifications are established by the concerned
standardising bodies.

CUTTING EDGE

Enhanced Data Rates for GMS Evolution, also referred to as GSM384 or UWC-

136. EDGE is an evolution of GSM and US-TDMA systems. It provides data
rates up to 384 kbit/s.

DIGITAL SIGNATURE

An electronic signature. A technology used to guarantee the reliability of
information during electronic transactions. Digital signaturing is enabled
through the application of open key encryption technology, and comprises
electronic data verifying the identity of the user. A digital signature is created
by coding data using an encryption key. Since only the user him/herself is in
possession of the corresponding encryption key, the digital signature is
essentially unforgettable. The digital signature is subsequently attached to
data transmitted to another party to guarantee that the individual sending the
message really is who he or she claims to be.

C-D

11

D-G

DIGITAL CASH

Generic term for new types of electronic currency being used over the
Internet. Digital cash makes possible transactions between two parties through
electronic communication only, thereby bypassing the need to actually
exchange true money. As a result, product and service purchases become
possible via the mobile phone without requiring cash or credit card.

EPOC TERMINAL

An operating system that turns voice-oriented handsets into Mediaphones and
Wireless Information Devices. EPOC places a lighter load on the processor
compared to present PDA operating systems and thus has the capacity to
enhance the multimedia capacity of mobile phones. EPOC is being developed
by Symbian, a joint company of Psion, Nokia, Ericsson, Motorola and
Matsushita (Panasonic). It constitutes an open platform optimised for mobile
phone use.

ETSI

European Telecommunication Standards Institute. ETSI is a European
organisation corresponding to the Japanese ARIB under joint Japan-Europe
activities related to WCDMA-DS, and plays a major role in 3G standardisation
efforts.

FDD

Frequency Division Duplex. Radio technology using a paired spectrum. Used
in cellular communication systems such as GSM; also applied under UMTS.

GGSN

Gateway GPRS Support Node. A gateway from a cellular network to an IP
network.

GIF

The GIF (Graphics Interchange Format) file format was developed in 1987 by
Compuserve Inc. primarily for the serial transmission of graphic images via a
modem. GIF has become widely supported on a variety of platforms. It is
standard for almost all Internet browsers and there is a high likelihood that it
will be adopted by WAP browsers as well. The three advantages which make
this format so powerful are (i) an interlacing function enabling rapid image
recognition, (ii) transparency enabling fusion of image and background, and
(iii) animation enabling timed /Sequential loop image display.

GPRS

General Packet Radio System. GPRS will provide packet switched data
primarily for GSM based 2G networks. GPRS network elements consists of two
main elements: SGSN (Service GPRS Support Node) and GGSN (Gateway
GPRS Support Node).

12

GPS

The Global Positioning System is a worldwide radio-navigation system that
was developed by the US. Department of Defence. In addition to military
purposes it is widely used in marine and terrestrial navigation (for example car
navigation systems).

GSM 1800

GSM cellular system operating in the 1800 MHz frequency band (also referred
to as PCN or PCN 1800 or DCS 1800). Primarily used in urban areas in
Europe.

GSM 1900

GSM-based cellular system operating in the 1900 MHz frequency band (also
referred to as PCS 1900 and DCS 1900). Primarily used in urban areas in the
US.

GSM 900

Global System for Mobile communication. Digital cellular network operating
in the 900 MHz frequency band. This system is the most extensively used
worldwide, having been adopted in over 100 countries in Europe, Asia, etc.
In many such countries, GSM provides international roaming service.

H.323

The H.323 recommendation was formulated by ITU in 1996. It is an umbrella
recommendation that defines multimedia communication algorithms and
protocols for IP-based Local Area Networks. The newest version of the
standard will also be used under mobile packet networks.

G-H

13

H

H.324M

The H.324 recommendation was formulated by ITU in 1995. It is an umbrella
recommendation that defines multimedia communication algorithms and
protocols for Public Switched Telephony Networks. The recommendation has
been extended (H.324M) for use in mobile circuit-switched networks as well.

HIPERLAN

High Performance Radio Local Area Network. HIPERLAN Type 1 is a wireless
LAN that is ISO 8802 compatible. It is intended to allow high performance
wireless networks to be created, without existing wired infrastructure. In
addition it can be used as an extension for a cable LAN. HIPERLAN is now in
the process of being standardised by ETSI.

HIPERLAN/2

This short range variant is intended as a complementary access mechanism for
UMTS systems as well as for private use as a wireless LAN type system. It will
offer high speed access (25 Mbit/s typical data rate) to a variety of networks
including the UMTS core network, ATM network and IP base network.
Spectrums are allocated for HIPERLAN in the 5GHz range, and a project is
underway in collaboration with CEPT (European Conference of Postal and
Telecommunications Administrations) for extending this allocation either in
licensed or unlicensed format.

HLR

Home Location Register. A data base system which manages subscriber data.
It enables the smooth processing of ID/charged fee data, etc. during roaming
in the case of a variety of differing communication devices and networks.

HSCDS

Hi Speed Circuit Switched Data. An upgrade to GSM networks that enables
data rates up to 57.6kbps. HSCSD was introduced in 1999 to upgrade the
GSM data rate from the previous maximum of 14.4kbps.

14

IMAP4

Internet Messaging Access Protocol. IMAP is a remote mailbox access
protocol. It enables efficient operation such as downloading only essential
data by first acquisitioning the e-mail header prior to actual e-mail download.
This feature makes the protocol well suited to remote environments.

I-MODE

i-mode is a wireless service launched in Japan in spring 1999 by NTT
DoCoMo. The service is accessed by a wireless packet network (PDC-P) and
the contents are described in a subset of the HTML language.

IMT-2000

International Mobile Telecommunication 2000. IMT-2000 is an initiative of the
International Telecommunications Union (ITU) to provide wireless access to
global telecommunication infrastructure through both satellite and terrestrial
systems, serving fixed and mobile phone users via both public and private
telephone networks. Development is being pursued based on a “family of
systems” concept defined as an amalgam of systems providing roaming on a
global scale and extending IMT-2000 service functions to subscribers to all
types of communication service providers.

I

15

I

IP

Internet Protocol. A communication protocol commonly utilised by
communication hardware comprising the Internet

IPV6

Internet Protocol version 6. lPv6 is the latest IP version. Address exhaustion is
prevented by means of a long address field, thereby enabling further Internet
expansion. In addition, security and mobility are built into the protocol.
Currently utilised IP addresses are almost all 1Pv4, and with the present rate of
Internet growth this type of address will be exhausted by 2010. IPv6 on the
other hand enables 10 to the 29th power more available addresses than the
previous IPv4.

IRDA

Infrared Data Association. IrDA is a private sector body established in 1993 to
promote standardisation in the field of infrared data communication. The
organisation currently has over 160 member firms. IrDA is also the term
generally applied to the system itself which operates in accordance with the
standards established by the organisation. This system has been incorporated
in notebook PCs, PDAs, and most recently in the NM208 (PDC) model
portable phone by Nokia as well, and has become a worldwide defacto
standard. The standards set by IrDA include the lrTran-P protocol for still
images.

IRMC

Infrared Mobile Communication. This is a sub working group within IrDA
which has defined infrared for mobile terminals (portable phones and portable
information terminals).

IRTRANP

lrTranP is a standard system for the infrared transfer of digital still images
between such devices as digital cameras PDAs etc. It was standardised by IrDA
(Infrared Data Association) and adopts a JPEG file format for exchanged data.

ISDN

Integrated Services Digital Network. It signifies an integrated digital network
capable of complete digitalising and handling of information from differing
services including telephone, fax, data, images, etc.

16

ITU

International Telecommunications Union. ITU is a UN affiliated body engaged
in standardisation relevant to international telecommunications. It includes
two standardising divisions, i.e. ITU-T (standardisation for modems, ISDN,
network interfaces for communication system operators, etc.) and ITU-R
(standardisation related to radio communication services). Standards
established by the organisation are referred to as “recommendations”, and are
formally adopted as such only upon the unanimous consent of all member
countries.

Iu

Standardised interface between a Radio Network Controller Network and
Packet Subsystem (e.g. RNC3GSGSN)

Iub

Interface between a Base Station and Radio Network Controller.

IWF

Inter-Working Function. A system under voice band data communication
service _MODFM: V.90 max. 56kbps/ G3 FAX: max. 14.4kbps_ which
functions to convert digital signals transferred over the air interface to 3.1 KHz
band data.

I

17

1818

JAVA

Programming language developed by Sun Microsystems. Some versions of
Java are likely to be used in the creation of wireless services. Java is primarily
characterised by the fact that programs written in the language do not rely on
an operating system.

JPEG

JPEG (Joint Photographic Expert Group) compression standard was developed
by ISO and ITU in 1990. The standard is suitable for compressing continuous
tone images, i.e. natural true-colour pictures. JPEG has become widely
supported in digital imaging and photography and is expected to be used in
mobile multimedia applications as well. Compression level is adjustable in line
with required quality.

LUR

Open RNC-RNC interface.

MC-CDMA

Multi-carrier Code Division Multiple Access. Typically, this means the
combination of three IS-95 carriers to form one wideband carrier. It is an
evolution of IS-95 for third generation systems. Also called cdma2OOO. The
current nomenclature is temporary, with a formal name for this technology to
be determined under 3GPP2.

Mobile Media Mode. The WWW:MMM logo is a marketing innovation
comprising a unifying industry-wide marketing symbol representing leading
edge web-based products and services.

J-M

19

M-P

MMS

Multimedia Messaging Service is a new standard that is being defined for use
in advanced wireless terminals. The service concept is derived from Short
Message Service and allows for non-real-time transmission of various kinds of
multimedia contents like images, audio, video clips, etc. As a further evolution
of the current text mail, for example, electronic postcards, audio/video clips,
etc. can be sent.

MPEG4

MPEG4 is a technology for compressing voice, video and related control data
and is one of the MPEG (Moving Picture Experts Group) international
standards. It is currently a focus of attention due to the fact that it enables
high speed and stable video transmission even in heretofore difficult
environments such as mobile communication. Incorporation of this leading
edge technology will imbue 3G terminals with a rich multimedia capability.

MS

Mobile Switching Center. Equipped with a switching function for mobile
communication.

NMT

Nordic Mobile Telephone. Analog cellular system originally developed for use
in Finland, Sweden, Denmark, Norway and Iceland. NMT is operated in 450
MHz and 900 MHz bands.

PACKET SWITCHING SERVICE

A communication system whereby data is divided and transmitted in packets
of set size. Its special feature is that communication between terminals with
differing speeds and formats is possible since transmission/ reception is
performed after data has first been stored at the exchange. In contrast to
circuit-switching where a circuit is occupied until all data transfer has been
completed, packet-switching improves efficiency through common use of
circuits.

PCN

Personal Communications Network. A standard for digital mobile phone
transmissions operating at a frequency of 1800 MHz (also referred to as OSM

1800). Adopted mainly in urban areas of Europe.

PCS

Personal Communication Service. Digital mobile phone network which
operates at the 1900 MHz frequency band. GSM 1900 is one of the
technologies used in building PCS networks (also referred to as PCS 1900 or
DCS 1900). Such networks employ a range of technologies including GSM,
TDMA and cdmaOne.

18

P-Q

PDC

Personal Digital Communications. A digital cellular standard presently being
used in Japan. To avoid the previous problem of lack of compatibility between
the differing types of earlier analog mobile phones in Japan (i.e. NTT type and
US developed TACS type), digital mobile phones have been standardised
under PDC. In the case of the PDC standard, primarily six channel TDMA
(Time Division Multiple Access) technology is applied. PDC, however, is a
standard unique to Japan which renders such phone units incompatible with
devices which adopt the more worldwide prevalent GSM standard.
Nevertheless, digitalisation under the standard enables ever smaller and lighter
mobile phones which in turn has spurred market expansion. As a result, over
930/0 of all mobile phones in Japan are now digital.

PHS

Personal Handyphone System. A digitalised evolution of the earlier analog
cordless phone concept which enables outdoor use as well. PHS incorporates
a unique Japanese standard which melds the advantages of the European
DECT and CT2. The system operates in the 1.9 GHz band.

PSTN

Public Switched Telephone Network. Switch-connected type
telecommunications circuitry provided by communication service operators. In
a narrow sense, it implies a subscriber telephone network. In a broader sense,
it is a concept which includes data communication as typified by the packet­switched network (also referred to as PSDN). ISDN is sometimes included
within this definition. By connecting a computer or other type of terminal, a
user can communicate with multiple parties. PSTN services are broadly
categorised into four types, i.e. telephony, telegraphy, packet-switched (data
type) and circuit-switched (for data use).

QCIF

Quarter CIF (1/4C1 F). QCIF is as video image format which employs 176
horizontal pixels and 144 vertical lines. Although resolution is courser than
CIF, QCIF consumes less memory while still achieving an acceptable level of
clarity on small displays such as those incorporated in mobile phones.

21

Q-S

QOS

Quality of Service. QoS indicates user perception of a particular service and is
defined in terms of a range of technical parameters including delay, jitter,
reliability, etc. Under the OSI reference model stipulated by ISO, QoS is
considered to be controlled at the network layer (third layer). Although
definition varies depending on the type of network service, the following
service classes apply in the case of ATM (asynchronous transfer mode).

(1) CBR (constant bit rate): Transfer at a set bit rate. For real-time transmission
of voice and video data, etc. (2) VBR (variable bit rate): Transmission quality is
enhanced by altering the transfer band depending on data volume. For
variable bit rate voice and video. (3) ABR (available bit rate): Dynamic altering
of data bit rate without band reservation. (4) UBR (unspecified bit rate):
Attempts the best transmission possible without guaranteeing any specific
throughput level.

RNC

Radio Network Controller under the UMTS system.

ROAMING

A service which enables the user to utilised his or her mobile phone via the
network facilities of another provider outside the service area of the
communication service operator to which he or she actually subscribes.

RRM

Radio Resource Management. One of the RNC functions.

SGSN

Service GPRS Support Node. Gateway between the RNC and the core
network.

22

S-T

SMS

Short Message Service is a text message communication service prescribed by
the European Telecommunications Standards Institute. A single ‘short message
can contain text up to a maximum of 160 characters, and can be promptly
transmitted provided the receiving terminal is “on” and within the mobile
network transmission range. If this is not the case, the short message is stored
for later transmission when the receiving party terminal is turned on or
reenters the network range. This service is particularly popular among young
people in Europe and Japan.

SOHO

Small Office Home Office. A small scale office system which enables internet
access for self business or work at home. With UMTS, a SOHO transfer speed
of over 2Mbps is considered possible.

STREAMING

One-way transmission of video and audio contents over the Internet is called
streaming. Streaming can be pointto-point or broadcasting from one origin to
multiple receivers. There are a number of radio stations already broadcasting
over the Internet, and video broadcasting as well is steadily gaining popularity.
Streaming is also possible over advanced wideband wireless networks. In this
manner, it becomes possible to view a certain news program or the video clip
of a favourite singer without placing a burden on the terminal memory.

SYMBIAN

Symbian is a company created jointly by Psion, Nokia, Ericsson and Motorola
in June 1998 with the primary aim of developing and standardising mobile
phone operating Systems. The “EPOC” OS currently under development by
Symbian achieves commonality among portable phones by differing
manufacturers with regards to wireless information, network, contents service,
messaging and other functions, in effect aiming at a defacto standard.
Matsushita (Panasonic) as well became a shareholder in 1999.

TACS

Total Access Communications System. An analog cellular communications
System derived from AMPS. It has been adopted in the UK (ETACS) and
operates in the 900 MHz band. Likewise adopted in Japan first as JTACS, it
exists at present as the further evolved NTACS with narrower bandwidth.

TTC

The Telecommunications Technology Committee. A private-sector corporate
body established in 1985 to prepare domestic standards relevant to Japanese
telecommunications.

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C-E

TD/CDMA

Time DivisioneCode Division Multiple Access.

TDD

Time Division Duplex. Radio technology using an unpaired spectrum. UTMS
also includes a band for TDD mode traffic. PHS and DECT incorporate TDD.

TDMA

Time Division Multiple Access. Used in current mobile phones (PDC). A digital
transmission technology that breaks voice signals into sequential pieces of
defined length, places each piece into an information conduit at specific
intervals and then reconstructs the pieces at the end of the conduit. GSM and
US-TDMA standards apply this technique. Compared to the FDMA (Frequency
Division Multiple Access) applied in earlier analog mobile phones, it
accommodates a much larger number of users by more finely dividing a radio
frequency into time slots and allocating slots to multiple calls. Nevertheless, a
shortage in the number of available channels is anticipated in the very near
future. As a result, a more efficient system adopting CDMA is currently being
developed under IMT-2000.

UMTS

Universal Mobile Telephone System: Third generation telecommunications
system based on WCDMA-DS.

URL

An addressing method for specifying the numerous resources on the Internet
in a uniform manner. A URL is indicated in the format: “protocol name”
://”host name”/”file name”. For example
“http://www.nokia.com/3g/index.htm I” indicates the “3g index.html file”
saved in the www server operating under the host name “nokia.com”.

24

USIM

Universal Subscriber Identity Module (Universal SIM). An upgrade of the SIM
card (generally used under GSM) to enable use with IMT-2000.

US-TDMA/1S 36

A second generation system used in the US. Also referred to as D-AMPS
(Digital AMPS). First digital system adopted in the US and covers the entire
country.

UTRA

UMTS Terrestrial Radio Access. Often applied with identical meaning of
WCDMA-DS.

UTRAN

UMTS Terrestrial Radio Access Network. UTRAN is a conceptual term
identifying that part of the network which consists of Radio Network
Controllers and Node Base stations.

VOIP

Voice over Internet Protocol. VolP is not simply for voice over IP, but is
designed to accommodate two-way video conferencing and application
sharing as well. Based on IP technology, VoIP is used to transfer a wide range
of different type traffic.

W3C

World Wide Web Consortium. A sector-wide body which promotes
standardisation of WWW technology. Major Internet related vendors are
consortium members, and to date the body has standardised a range of
crucial technologies including HTTP, HTML, XML, etc.

U-W

25

W

WAP

Wireless Application Protocol. Wireless Application Protocol is the de facto
worldwide standard for providing Internet communications and advanced
telephony services on digital mobile phones, pagers, digital assistants and
other wireless terminals. The WAP Forum was established in 1997 by Nokia,
Ericcson, Motorola and Unwired Planet (now Phone.com). Its current
members comprise over 200 leading firms in the wireless communication
field.

WCDMA-DS

Wideband Code Division Multiple Access. A radio interface for UMTS.
Characterised by use of a wider band than CDMA. Has additional advantages
of high transfer rate, and increased system capacity and communication
quality by statistical multiplexing, etc. WCDMA efficiently utilizes the radio
spectrum to provide a maximum data rate of 2 Mbit/s. Originally, WCDMA
was written with a “3G” indication. However, since it is now being reviewed
under 30 Harmonisation together with two other systems, it is more precisely
specified here as WCDMA-DS.

WLAN

Wireless Local Access Network. This type of network enables wireless access to
an Ethernet network from a PC or other communication device via an access
point, The Nokia WLAN format comprises a 2.4 GHz frequency band (no
licensing fee), a PC card and an access point connected to wired
infrastructure. Nokia applies an open standard (IEEE 802.11 and IEEE 802.11b)
enabling wideband data access at data rates ranging from 2 Mbps to a
maximum 11 Mbps.

WML

Wireless Markup Language is a markup language developed specifically for
wireless applications. WML is based on XML

26

X-V

XML

The Extensible Markup Language (XML) is a format for structured documents
and data. It was developed by the World Wide Web Consortium (W3C). XML
is a meta-language, i.e. content is not directly encoded in XML but in a
specific markup language defined using XML It corresponds to the successor
language for the current HTML. In contrast to HTML where tags are pre­defined, the XML user can freely extend a data format applying his or her own
uniquely defined tags. Since the tag structure in the case of XML enables the
computer to automatically analyse data content, building EC (electronic
commerce) and ED (electronic data interchange) systems is facilitated.

PROTOCOL

An agreed upon format used during communication or information exchange
between two communication devices.

VHE

Virtual Home Environment. VHE is a 3G service concept where the end-user
services and personal settings follow him wherever he goes and in whichever
network he roams to. The terminal UI look-and-feel remains the same.

27

Contact Numbers

Customer Services

The following Westlake lines are open Monday to Friday 8.45am to 6pm

and Saturday 9am to 5pm.

• All enquiries 0870 740 7717

• Fax number 0870 740 7718

Business Management Services

The following Westlake lines are open Monday to Friday 8.45 to 6pm.

• All enquiries 0800 015 0286

• Fax number 0870 740 7718

As part of our customer service policy, we may record your calls

to our offices,

We may use these recordings to help train our staff.

Westlake Communications Ltd
International House
223 Regent Street
London
W1B 2QD
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Tel : [phone]
Fax : [phone]
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[e-mail]
www.westlakecom.com