User Manual
RSA3303B, RSA3308B, & RSA3408B
Option 30 3GPP Release 99 and Release 5
Uplink and Downlink Analysis Software
071-2396-00
This document supports firmware version 4.0 and above.
www.tektronix.com
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suppliers, and are protected by national copyright laws and international treaty provisions.
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Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O . B o x 5 0 0
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty 2
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year
from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option,
either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange
for the defective product. Parts, modules and replacement products used by Tektronix for warranty work may be new
or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges
prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country
in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties,
taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to
repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or
malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated
with other products when the effect of such modification or integration increases the time or difficulty of servicing the
product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER
WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE
REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS
VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF
THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Related Manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Getting Started
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Analysis Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Measurement Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Operating Basics
3GPP-R99/R5 Spectrum Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Channel Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
ACLR Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Multi-Carrier ACLR Measurement (3GPP-R5 Downlink Only). . . . . . . . . . . . . . . . . 2-7
Spectrum Emission Mask Measurement (3GPP-R5 Only) . . . . . . . . . . . . . . . . . . . . . 2-9
OBW Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
EBW Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Carrier Frequency Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Editing the Measurement Limits (3GPP-R5 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
3GPP-R99 Uplink Modulation Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Meas Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Determining the Symbol Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Scale and Format of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Power Codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Code Power versus Time Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Code Power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Symbol Constellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Symbol Eye Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
Symbol Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
Modulation Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42
3GPP-R5 Downlink Modulation Analysis . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Measurement Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Scale and Format of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
Power Codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
Code Power versus Time Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Code Power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Symbol Constellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-61
Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
i
Table of Contents
Appendices
Symbol Eye Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-64
Symbol Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
Modulation Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-66
3GPP-R5 Uplink Modulation Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-67
Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-68
Measurement Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70
Display Method for HS-DPCCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-73
Scale and Format of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-76
Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-79
Power Codogram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-81
Code Power versus Time Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83
Code Power versus Symbol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-85
Symbol Constellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-87
Symbol EVM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-88
Symbol Eye Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-90
Symbol Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-91
Modulation Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-92
ACK/NACK Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-93
Index
Appendix A: Measurement Limit Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B: Scale Setting Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
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RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
List of Figures
List of Figures
Figure 1-1: Internal process for W-CDMA uplink analysis . . . . . . . . . . . . . . . . . 1-3
Figure 1-2: Measurement menus for the 3GPP-R99/R5 analysis . . . . . . . . . . . . . 1-7
Figure 2-1: Measurement menu in the S/A mode . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Figure 2-2: Channel power measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 2-3: 3GPP-R5 ACLR measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Figure 2-4: 3GPP-R5 multi-carrier ACLR measurement . . . . . . . . . . . . . . . . . . . 2-8
Figure 2-5: Spectrum emission mask measurement . . . . . . . . . . . . . . . . . . . . . . 2-10
Figure 2-6: OBW measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Figure 2-7: EBW measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Figure 2-8: Carrier frequency measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Figure 2-9: Measurement limits editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Figure 2-10: Spectrum emission mask measurement limits editor . . . . . . . . . . 2-16
Figure 2-11: 3GPP-R99 uplink modulation analysis measurement menu . . . . . 2-21
Figure 2-12: Code domain power measurement example . . . . . . . . . . . . . . . . . . 2-24
Figure 2-13: Determining the symbol rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Figure 2-14: Time slot table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Figure 2-15: Code domain power versus Short code . . . . . . . . . . . . . . . . . . . . . . 2-29
Figure 2-16: Power codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Figure 2-17: Code domain power versus Time slot . . . . . . . . . . . . . . . . . . . . . . . 2-33
Figure 2-18: Code domain power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Figure 2-19: Symbol constellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Figure 2-20: Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Figure 2-21: Symbol eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
Figure 2-22: Symbol table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
Figure 2-23: Modulation accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42
Figure 2-24: 3GPP-R5 downlink modulation analysis measurement menu . . . 2-43
Figure 2-25: Example of the code domain power measurement . . . . . . . . . . . . 2-46
Figure 2-26: Time slot table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
Figure 2-27: Code domain power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
Figure 2-28: Power codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
Figure 2-29: Code domain power versus Time slot . . . . . . . . . . . . . . . . . . . . . . . 2-57
Figure 2-30: Code domain power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Figure 2-31: Symbol constellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-61
Figure 2-32: Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62
Figure 2-33: Symbol eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-64
Figure 2-34: Symbol table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
Figure 2-35: Modulation accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-66
Figure 2-36: 3GPP-R5 uplink modulation analysis measurement menu . . . . . . 2-67
Figure 2-37: Example of the code domain power measurement . . . . . . . . . . . . 2-69
Figure 2-38: Subframe offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-72
Figure 2-39: HS-DPCCH display method (Code domain power) . . . . . . . . . . . . 2-73
Figure 2-40: HS-DPCCH display method (Code power versus Symbol) . . . . . . 2-74
Figure 2-41: HS-DPCCH display method (ACK/NACK analysis) . . . . . . . . . . . 2-75
Figure 2-42: Time slot table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-76
Figure 2-43: Code domain power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-79
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
iii
List of Figures
Figure 2-44: Power codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-81
Figure 2-45: Code domain power versus Time slot . . . . . . . . . . . . . . . . . . . . . . . . 2-83
Figure 2-46: Code domain power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . . 2-85
Figure 2-47: Symbol constellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-87
Figure 2-48: Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-88
Figure 2-49: Symbol eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-90
Figure 2-50: Symbol table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-91
Figure 2-51: Modulation accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-92
Figure 2-52: ACK/NACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-93
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RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
List of Tables
List of Tables
Table 1-1: Additional functions in Option 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Table 1-2: Uplink parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Table 1-3: 3GPP-R5 downlink transmission parameters . . . . . . . . . . . . . . . . . . . 1-4
Table 1-4: 3GPP-R5 uplink transmission parameters . . . . . . . . . . . . . . . . . . . . . . 1-5
Table 2-1: Measurement limits settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Table 2-2: Limit settings for the spectrum emission mask measurement . . . . . 2-17
Table 2-3: Vertical scale setting range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
Table 2-4: Vertical scale setting range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-89
Table A-1: Common limits (Band I, II, and III) . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-2: SEM limits in Band I and III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Table A-3: SEM limits in Band II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Table B-1: Display format and scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Table B-2: Display format and scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
v
List of Tables
vi
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Preface
About This Manual
This manual provides operating instructions for the RSA3303B, RSA3308B, and
RSA3408B Real-Time Spectrum Analyzer Option 30 3GPP Release 99 and
Release 5 uplink and downlink analysis software.
This manual supports the following instruments:
RSA3303B Option 30
RSA3308B Option 30
RSA3408B Option 30
The manual consists of the following sections:
Getting Started describes the overview of the 3GPP Release 5 analysis.
Operating Basics explains the menu functions and measurement procedures.
Appendices provide additional information about default settings and scale
setting ranges.
The analyzer uses Microsoft Windows XP as the operating system. This manual
does not describe common usage of Windows XP. Refer to your Windows manuals
as necessary.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
vii
Preface
Related Manuals
The following documents are also available for the analyzer:
RSA3303B & RSA3308B User Manual
(Standard accessory; Tektronix part number 071-2363-XX)
RSA3408B User Manual
(Standard accessory; Tektronix part number 071-2364-XX)
Describes how to install the analyzer and how to work with the menus, and
details the standard functions. It also provides the specifications.
RSA3000B Series Programmer Manual
(Standard accessory; PDF, Tektronix part number 071-2382-XX)
Contains an alphabetical listing of the programming commands and other
information related to controlling the analyzer over the GPIB interface.
PDF Manual
The RSA3000B Series Programmer Manual (PDF only) is included in the
Documents CD (Tektronix part number 063-4089-XX).
viii
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Getting Started
Getting Started
The RSA3303B, RSA3308B, and RSA3408B Option 30 3GPP Release 99 and
Release 5 Uplink and Downlink analysis software enables spectrum and
modulation analyses of W-CDMA signals defined in 3GPP (3
Partnership Project) Release 99 (“3GPP-R99”) and HSDPA (High Speed
Downlink Packet Access) signals defined in 3GPP Release 5 (“3GPP-R5”).
Measurements are performed on downlink QPSK and 16QAM or uplink BPSK
signals.
Table 1-1 summarizes the functions added by Option 30 by the measurement
modes of the analyzer.
Table 1-1: Additional functions in Option 30
rd
Generation
Measurement mode Additional measurement items
S/A
(spectrum analysis)
Demod
(modulation analysis)
Time
(time analysis)
Channel power
ACLR (Adjacent Channel Leakage Power Ratio)
MC-ACLR (Multi-Carrier ACLR)
Spectrum emission Mask
OBW (Occupied Bandwidth)
EBW (Emission Bandwidth)
Carrier frequency
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
Symbol constellation
Symbol EVM (Error Vector Magnitude)
Symbol eye diagram
Symbol table
Modulation accuracy
ACK/NACK analysis
None - - -
3GPP-R99
uplink
✓ ✓ ✓
✓ ✓ ✓
-
-
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
-
3GPP-R5
downlink
✓
✓ ✓
-
3GPP-R5
uplink
-
✓
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
1-1
Getting Started
Analysis Definition
The analyzer performs measurements according to 3GPP specifications.
3GPP-R99 (W-CDMA)
The analyzer supports three types of W-CDMA uplink signals:
Uplink Analysis
DPDCH (Dedicated Physical Data Channel) /
DPCCH (Dedicated Physical Control Channel)
PRACH (Physical Random Access Data Channel)
PCPCH (Physical Common Packet Channel)
The analyzer covers the W-CDMA uplink parameters listed in Table 1-2.
Table 1-2: Uplink parameters
DPDCH/DPCCH PRACH PCPCH
Item DPDCH DPCCH Data part Control part Data part Control part
Chip rate 3.84 Mcps
Symbol rate 15, 30, 60, 120,
240, 480, 960
ksps
Maximum number of
channels
Frame structure 15 time-slots, 10 ms
Time slot 2560 chips, 667
Scrambling code Long or short
Preamble -- 4096 chips, 1.067 ms 4096 chips, 1.067 ms
Modulation method BPSK for each channel
Baseband filter Root-cosine with
611111
Number: 0 to 16,777,215
15 ksps 15, 30, 60, 120
ksps
Long
Number: 0 to 8,191
α
15 ksps 15, 30, 60, 120,
240, 480, 960
ksps
μ
s
Long
Number: 8,192 to 40,959
= 0.22 (default), 0.0001
≤α ≤
1
15 ksps
1-2
NOTE.
The analyzer despreads DPCCH and the control part of the incoming
signal, using the frequency and phase to establish synchronization. If the level of
DPCCH or the control part is much lower than the level of the other channels,
accurate analysis may not be performed.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Getting Started
Perform flatness correction and filtering.
Correct frequency and phase.
Calculate the preamble power.
Correct frequency and phase.
Obtain symbols for each channel of
DPDCH and DPCCH, and calculate
power for each symbol.
Search for a synchronous point by
despreading DPCCH.
Correlate data with the preamble pattern
and despread the control par t of
message to determine whether the data
is preamble or message and search for a
synchronous point.
Obtain symbols for the data and
control parts, and calculate
power for each symbol.
Message part Preamble
DPDCH/DPCCH PRACH, PCPCH
Measurement Functions.
Code domain power
The analyzer has the following measurement functions:
Measures power relative to the total power for each channel.
Time vs. Code domain power
Measures the relative power at symbol points for each channel in time series.
Code domain power spectrogram
Measures the code domain power continuously for up to 150 slots
(0.1 sec) and displays spectrogram for each slot.
Vector/Constellation
Measures the vector loci and chip points for entire signals, as well as
constellation at symbol points for each channel.
Modulation accuracy
Measures EVM (Error Vector Magnitude), amplitude and phase errors,
waveform quality, and origin offset for each channel.
Measures PCDE (Peak Code Domain Error), amplitude, Frequency, and phase
errors, waveform quality, and origin offset for a time slot.
Measurement Process.
The analyzer processes the input signals internally as shown
in Figure 1-1.
Figure 1-1: Internal process for W-CDMA uplink analysis
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
1-3
Getting Started
3GPP-R5 Downlink
Analysis
Table 1-3 shows the 3GPP-R5 downlink transmission parameters for the analyzer.
Table 1-3: 3GPP-R5 downlink transmission parameters
Item Description
Chip rate 3.84 Mcps
Symbol rate 7.5, 15, 30, 60, 120, 240, 480, and 960 ksps
Maximum number of channels 512
Frame structure Time slot: 666.7
Scrambling code Gold code using M series by generator polynomial 18 bits
Channelization code Hierarchical orthogonal code series based on the
combination of chip rate and symbol rate
Modulation method for each channel QPSK or 16QAM
Baseband filter Root-cosine with
Can be set in the range of 0.0001
Measurement Functions.
Code domain power: Measures the power relative to the total power for each
The analyzer has the following measurement functions:
μ
s
α
= 0.22 (default)
≤α ≤
1
channel. Multi-rate is supported and up to 512 channels can be measured.
Code domain power versus Time: Measures the relative power at symbol points
for each channel in time series.
Power codogram: Measures the code domain power continuously for up to
150 slots (0.1 sec) and displays a spectrogram for each slot.
Vector/Constellation: Measures the vector loci and chip points for all signals
as well as constellation at symbol points for each channel.
Modulation accuracy: Measures EVM (Error Vector Magnitude), amplitude
and phase errors, waveform quality, and origin offset for each channel.
Measures PCDE (Peak Code Domain Error), amplitude, frequency, and phase
errors; waveform quality; and origin offset for each time slot.
1-4
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Getting Started
3GPP-R5 Uplink
Analysis
Measurement Process.
The following steps show the internal process for the
3GPP-R5 downlink analysis:
1. Perform flatness correction and filtering.
2. Establish the synchronization with P-SCH.
3. Determine the range of scrambling code numbers with S-SCH.
4. Fix the scrambling code number and the phase.
5. Correct the frequency and the phase.
6. Perform high-speed Hadamard transformation.
7. Calculate the power for each symbol on all channels.
The analyzer supports the following types of 3GPP-R5 uplink signals:
DPDCH (Dedicated Physical Data Channel)
DPCCH (Dedicated Physical Control Channel)
HS-DPCCH (Dedicated Physical Control Channel for High-Speed
Downlink Shared Channel (HS-DSCH))
The analyzer covers the 3GPP-R5 uplink transmission parameters listed in
Tab le 1-4 .
Table 1-4: 3GPP-R5 uplink transmission parameters
Item DPDCH DPCCH HS-DPCCH
Chip rate 3.84 Mcps
Symbol rate 15, 30, 60, 120, 240,
480, and 960 ksps
Maximum number of
channels
Frame structure 15 time-slots, 10 ms 15 time-slots, 10 ms 5 sub-frames, 10 ms
Time slot 2560 chips, 667
Scrambling code Long or short. Number: 0 to 16,777,215
Modulation method for
each channel
Baseband filter Root-cosine with
611
Can be set in the range of 0.0001
15 ksps 15 ksps
μ
s
BPSK
α
= 0.22 (default).
≤α ≤
1
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
1-5
Getting Started
Measurement Functions.
ACK/NACK analysis: Measures the HS-DPCCH to detect and display the
The analyzer has the following measurement functions:
ACK/NACK indicator, DTX (Discontinuous Transmission), and CQI (Channel
Quality Indicator).
Code domain power: Measures the power relative to the total power for each
channel. Multi-rate is supported and up to 512 channels can be measured.
Power codogram: Measures the code domain power continuously for up to
150 slots (0.1 sec) and displays spectrogram for each slot.
NOTE.
The code domain power and the power codogram can be displayed in the
subview only.
Measurement Process.
The following steps show the internal process for the
3GPP-R5 uplink analysis:
1. Perform flatness correction and filtering.
2. Search for a synchronous point by despreading DPCCH.
3. Correct the frequency and phase.
4. Obtain symbols for each channel of DPDCH and DPCCH, and calculate power
for each symbol.
NOTE.
using the frequency and phase to establish synchronization. If the level of DPCCH
or the control part is much lower than (about 1/10
The analyzer despreads DPCCH and the control part of an input signal,
th
) the level of the other channels
(DPDCH or the data part), the analysis may not be performed accurately.
1-6
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Measurement Menu
Standard...
3GPP-R5-DL * Channel Power
ACLR
Spectrum Emission Mask
OBW
EBW
Carrier Frequency
MC-ACLR
Standard...
3GPP-R5-DL * Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mode
S/A
Demod
Time
3GPP-R5-UL * Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
ACK/NACK Analysis
Measure menu items
3GPP-R5-UL *
CCDF
(Standard) * DL and UL represent downlink and uplink, respectively.
Channel Power
ACLR
Spectrum Emission Mask
OBW
EBW
Carrier Frequency
W-C D MA-U L Channel Power
ACLR
OBW
EBW
Carrier Frequency
W-CDMA-UL Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Getting Started
Figure 1-2 shows the measurement menus related to the 3GPP-R99/R5 analysis.
Figure 1-2: Measurement menus for the 3GPP-R99/R5 analysis
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
1-7
Getting Started
For the CCDF (Complementary Cumulative Distribution Function) analysis in
Time mode, refer to your instrument user manual.
NOTE.
If you are not familiar with the operation of the analyzer, refer to your
instrument user manual.
1-8
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Operating Basics
3GPP-R99/R5 Spectrum Analysis
Standard...
3GPP-R5-DL Channel Power
ACLR
Spectrum Emission Mask
OBW
EBW
Carrier Frequency
MC-ACLR
Mode
S/A
Demod
Time
Measure menu items
3GPP-R5-UL
Channel Power
ACLR
Spectrum Emission Mask
OBW
EBW
Carrier Frequency
W-CDMA-UL Channel Power
ACLR
OBW
EBW
Carrier Frequency
This section describes the basic operation of 3GPP-R5 uplink/downlink analysis in
the S/A (Spectrum Analysis) mode. You can access the measurement items by
pressing S/A →Standard... →W-CDMA-UL (3GPP-R99 uplink),
3GPP-R5-DL (3GPP-R5 downlink), or 3GPP-R5-UL (3GPP-R5 uplink)
as shown in Figure 2-1.
Figure 2-1: Measurement menu in the S/A mode
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-1
3GPP-R99/R5 Spectrum Analysis
Measurement Procedure
Use the following procedure to take a spectrum measurement in S/A mode.
NOTE.
For details on basic operation of the analyzer, refer to your instrument
user manual.
1. Press the S/A key on the front panel.
2. Press the side key: Standard... →3GPP-R5-DL (for downlink) or
3GPP-R5-UL (for uplink).
3. Press the Frequency/Channel key on the front panel to set frequency.
If you use the channel table, do these steps:
Press the Channel Table... side key and select W-CDMA-DL (for
downlink) or W-CDMA-UL (for uplink).
Press the Channel side key and select a channel by turning the general
purpose knob.
The center frequency is set to the value corresponding to the channel.
4. Press the Span key on the front panel and set span.
5. Press the Amplitude key on the front panel and set amplitude appropriately.
NOTE.
If the input level is too high, “Overrange - increase RefLev or Atten”
displays in the red box at the center top of the screen. If this occurs, raise the
reference level.
2-2
6. Press the Measure key on the front panel and select a measurement item:
Channel Power
ACLR (Adjacent Channel Leakage Power Ratio)
Spectrum Emission Mask (3GPP-R5 only)
OBW (Occupied Bandwidth)
EBW (Emission Bandwidth)
Carrier Frequency
MC-ACLR (Multi-Carrier ACLR, 3GPP-R5 downlink analysis only)
The following sections explain each measurement.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Channel Power Measurement
The channel power measurement measures the channel power within a specified
bandwidth and the power spectral density in dBm/Hz.
After selecting Channel Power in the procedure described on page 2-2, set the
parameters in the Meas Setup menu as follows.
3GPP-R99/R5 Spectrum Analysis
Measurement Setup Menu
The Meas Setup menu for the channel power measurement contains the following
controls:
Channel Bandwidth.
Sets the frequency range for the measurement using the band
power marker (see Figure 2-2). Range: 50 kHz to 20 MHz (default: 3.84 MHz).
Measurement Filter Shape...
Rect (Rectangular, default)
Gaussian
Nyquist
Root Nyquist
Rolloff Ratio.
Sets the roll-off ratio when the Measurement Filter Shape is
Selects the filter to be used for the measurement:
Nyquist or Root Nyquist. Range: 0.0001 to 1 (default: 0.5).
Limits...
Sets the pass/fail limit for the channel power measurement.
When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-14 for more information.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-3
3GPP-R99/R5 Spectrum Analysis
Channel Bandwidth
Figure 2-2 shows an example of the channel power measurement.
Figure 2-2: Channel power measurement
2-4
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
ACLR Measurement
3GPP-R99/R5 Spectrum Analysis
The ACLR (Adjacent Channel Leakage Power Ratio) measurement according to
the 3GPP-R5 standard is based on the ACPR measurement function in the normal
spectrum analysis. For the basics, refer to ACPR Measurement in your instrument
user manual.
The following settings are fixed according to the 3GPP-R5 standard:
Span: 25 MHz
Main channel measurement bandwidth (Main Chan BW): 3.84 MHz
Adjacent channel measurement bandwidth (Adj Chan BW): 3.84 MHz
Channel spacing (Chan Spacing): 5 MHz
After selecting ACLR in the procedure described on page 2-2, set the parameters
in the Meas Setup menu as follows.
Measurement Setup Menu
The Meas Setup menu for the ACLR measurement contains the following controls:
Sweep.
On. Default. Acquires an input signal with five scans by the channel spacing
Selects how to scan the 25 MHz span for acquiring an input signal.
(5 MHz).
Off. Acquires an input signal with a single scan in the 25 MHz span.
Noise Correction.
Determines whether to subtract the noise level from the
signal level to obtain the measurement results.
On. Measures noise level first, and then subtracts the noise level from the
signal level to calculate ACLR measurement values.
Off. Default. Calculates ACLR measurement values directly from the input
signal level.
Measurement Filter Shape...
Selects a filter shape:
Rect (rectangle) or RootNyquist (Root Nyquist, default)
Rolloff Ratio.
Sets the roll-off value when the filter is Root Nyquist.
Range: 0.0001 to 1 (default: 0.22)
Limits...
3GPP-R5 only. Sets the pass/fail limit for the ACLR measurement.
When you press this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-14 for more information.
NOTE.
The ACLR measurement and the multi-carrier ACLR measurement use the
same limits setting.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-5
3GPP-R99/R5 Spectrum Analysis
Main Upper1 Upper2Lower1Lower2
Figure 2-3 shows an example of the ACLR measurement. Measured values are
displayed in the lower part of the screen.
Figure 2-3: 3GPP-R5 ACLR measurement
2-6
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Multi-Carrier ACLR Measurement
3GPP-R5 Downlink Only
The multi-carrier ACLR (Adjacent Channel Leakage Power Ratio) measurement is
performed according to the 3GPP-R5 standard. You can measure the power levels
of up to four carriers and the ratio of each adjacent channel (a total of four channels)
to the power of the main channel. The measurement is based on the ACPR
measurement function in the normal spectrum analysis. For the basics, refer to
ACPR Measurement in your instrument user manual.
The following settings are fixed according to the 3GPP-R5 standard:
Span: 55 MHz
Main channel measurement bandwidth (Main Chan BW): 3.84 MHz
Adjacent channel measurement bandwidth (Adj Chan BW): 3.84 MHz
Channel spacing (Chan Spacing): 5 MHz
After selecting MC-ACLR in the procedure described on page 2-2, set the
parameters in the Meas Setup menu as follows.
3GPP-R99/R5 Spectrum Analysis
Measurement Setup Menu
The Meas Setup menu for the multi-carrier ACLR measurement contains the
following controls:
Carrier Threshold.
Sets the threshold level to detect the carrier. The threshold level
is indicated by a horizontal line in blue as shown in Figure 2-4.
Range: −30 to −1 dBc relative to the power of the main channel (default: −10 dBc).
Noise Correction.
Determines whether to subtract the noise level from the
signal level to obtain the measurement results.
On. Measures noise level first, and then subtracts the noise level from the
signal level to calculate ACLR measurement values.
Off. Default. Calculates ACLR measurement values directly from the input
signal level.
Measurement Filter Shape...
Rect (Rectangular)
Root Nyquist (default)
Rolloff Ratio.
Sets the roll-off value when the filter is Root Nyquist.
Selects a filter shape.
Range: 0.0001 to 1 (default: 0.22)
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-7
3GPP-R99/R5 Spectrum Analysis
CarriersLower
adjacent
channels
Upper
adjacent
channels
Carrier Threshold
Measurement results
P (Pass) / F (Fail)
Main channel
Ch1 Ch2 Ch3 Ch4
Limits...
Sets the pass/fail limit for the multi-carrier ACLR measurement.
When you press this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-14 for more information.
NOTE.
The ACLR measurement and the multi-carrier ACLR measurement use the
same limits setting.
Figure 2-4 shows an example of the multi-carrier ACLR measurement. There are
four carriers. On the bottom of the screen, the measurement results of the channel
power and ACLR are displayed. The channel at the center frequency (Ch 2 in this
case) is the main channel, which is indicated as “Main” in green in the
measurement results. The all channels are located at 5 MHz intervals according to
the standard.
2-8
Figure 2-4: 3GPP-R5 multi-carrier ACLR measurement
NOTE.
If there is no carrier in the main channel, the error message “No carrier”
appears.
If there are more than four carriers in the span, the error message “Too many
carriers” appears.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Spectrum Emission Mask Measurement
3GPP-R5 Only
The spectrum emission mask measurement verifies that the base station is not
transmitting excessive power outside of its designated channel.
3GPP-R99/R5 Spectrum Analysis
Measurement Setup Menu
NOTE.
When performing this measurement, be sure to apply a continuous active
slot signal or a continuous idle slot signal.
After selecting Spectrum Emission Mask in the procedure described on page 2-2,
set the parameters in the Meas Setup menu as follows:
The Meas Setup menu for the spectrum emission mask measurement contains the
following controls:
Ref. Channel Select.
Aut o. The level is determined automatically by evaluating the spectrum trace.
Man. The level is set by the Ref. Channel Level.
Ref. Channel Level.
Selects how to determine the reference channel level.
Sets the reference channel level to be used by the measurement
when Ref. Channel Select is set to Man. Range: −150 to 30 dBm (default: 0 dBm).
Channel Bandwidth.
Defines the frequency window occupied by the
reference channel. Range: 1 to 10 MHz (default: 3.84 MHz).
Measurement Filter Shape...
Selects the filter shape to be used when measuring the
reference channel when Ref. Channel Select is set to Auto.
Rect (Rectangular, default)
Gaussian
Nyquist
Root Nyquist
Rolloff Ratio.
Sets the rolloff ratio when Measurement Filter Shape is set to
Nyquist or Root Nyquist. Range: 0.0001 to 1 (default: 0.5).
Limits...
Sets the pass/fail limit for the spectrum emission mask measurement.
When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-14 for more information.
Scroll Table.
Step Size.
Scrolls the results table on screen using the general purpose knob.
Sets the step size for the Channel Bandwidth setting.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-9
3GPP-R99/R5 Spectrum Analysis
Defined by the measurement limits editor
(from the left)
Zone (A to E)
Side (upper or lower)
Start frequency of the zone
Stop frequency of the zone
MBW (Measurement Bandwidth (RBW))
Measurement results (P: Pass; F: Fail)
(from the left)
Absolute peak value and Pass/Fail
Relative peak value and Pass/Fail
Figure 2-5 shows an example of the spectrum emission mask measurement.
2-10
Figure 2-5: Spectrum emission mask measurement
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
OBW Measurement
Occupied Bandwidth
3GPP-R99/R5 Spectrum Analysis
The OBW (Occupied Bandwidth) measurement measures the frequency bandwidth
using the ratio you specify for carrier signal power over power within the set span.
After selecting OBW in the procedure described on page 2-2, set the parameters in
the Meas Setup menu as follows:
Measurement Setup Menu
The Meas Setup menu for the OBW measurement contains the following controls:
Power Ratio.
calculating OBW. Range: 80 to 99.99% (default: 99%).
Limits...
When pressing this side key, the measurement limits editor appears. Refer to
Editing the Measurement Limits on page 2-14 for more information.
Figure 2-6 shows an example of the OBW measurement.
Specifies the power ratio of the carrier and span regions for
Sets the pass/fail limits for the OBW measurement.
Figure 2-6: OBW measurement
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-11
3GPP-R99/R5 Spectrum Analysis
Measurement Level
Emission Bandwidth
EBW Measurement
The frequency bandwidth between the maximum peak of spectrum and the
specified dB value is measured in EBW (Emission Bandwidth).
After selecting EBW in the procedure described on page 2-2, set the parameters in
the Meas Setup menu as follows:
Measurement Setup Menu
The Meas Setup menu for the EBW measurement contains the following controls:
Measurement Level.
measured (see Figure 2-7). Range: −100 to −1 dB (default: −30 dB).
Figure 2-7 shows an example of the EBW measurement.
Specifies how far down from the peak level the bandwidth is
2-12
Figure 2-7: EBW measurement
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Carrier Frequency Measurement
Carrier frequency is accurately measured using the counter function.
3GPP-R99/R5 Spectrum Analysis
Measurement Setup Menu
NOTE.
roughly the frequency of a 3GPP signal. Use the modulation analysis function
(Demod mode) to measure accurately the 3GPP signal.
After selecting Carrier Frequency in the procedure described on page 2-2, set the
parameters in the Meas Setup menu as follows:
The Meas Setup menu for the carrier frequency measurement contains the
following controls:
Counter Resolution.
displayed on the bottom of the view with this resolution.
Range: 1 mHz to 1 MHz in a tenfold sequence (default: 1 Hz).
Figure 2-8 shows an example of the carrier frequency measurement.
The carrier frequency measurement function should be used to estimate
Sets the counter resolution. The measurement result is
Figure 2-8: Carrier frequency measurement
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-13
3GPP-R99/R5 Spectrum Analysis
Editing the Measurement Limits
3GPP-R5 Only
This section describes how to set measurement limits that can be used to perform
pass/fail testing for the following measurements in the S/A mode:
Channel power
ACLR
Spectrum emission mask
OBW
Refer to Appendix A: Measurement Limit Defaults for information about the
default settings of each measurement limit.
Using the Measurement
Limits Editor
All of the measurement limits are set in the measurement limits editor. You can
access it from the Limits... side key on the Meas Setup menu. Figure 2-9 shows the
measurement limits editor for the 3GPP-R5 downlink analysis in the S/A mode.
2-14
Figure 2-9: Measurement limits editor
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
3GPP-R99/R5 Spectrum Analysis
Table 2-1 describes all of the measurement limit items available in the
measurement limits editor.
Table 2-1: Measurement limits settings
Limit item Description Lower limit range Upper limit range
−
Channel Power Sets the lower and upper limits for the Channel Power
measurement.
SEM Offset From Channel Select this item to access another measurement limits
editor to edit SEM offset from channel limits.
OBW Sets the upper and lower limits for the OBW
measurement.
ACLR 1st Lower Channel Sets the upper limit for the first lower channel in the
ACLR measurement.
ACLR 1st Upper Channel Sets the upper limit for the first upper channel in the
ACLR measurement.
ACLR 2nd Lower Channel Sets the upper limit for the second lower channel in
the ACLR measurement.
ACLR 2nd Upper Channel Sets the upper limit for the second upper channel in
the ACLR measurement.
200 to +200 dBm
Refer to page 2-16 for the details.
0 to 30 MHz 0 to 30 MHz
- 0 to 70 dB
- 0 to 70 dB
- 0 to 70 dB
- 0 to 70 dB
−
200 to +200 dBm
Setting Measurement
Limits
Perform the following procedure to set measurement limits:
1. Press the Meas Setup menu key to open the Meas Setup menu.
2. Press the Limits... side key to open the measurement limits editor with the
LIMITS menu.
3. Press the Select row to edit side key.
4. Turn the general purpose knob (or press the arrow keys just above the knob) to
select the row that you want to edit.
5. Press the Enable Limit side key to enable or disable the Pass/Fail testing for
the specified limit(s).
6. Press the Lower Limit side key and set the lower limit for the selected
measurement item, if applicable.
7. Press the Upper Limit side key and set the upper limit for the selected
measurement item.
8. If you want to use a given measurement limit set for the frequency band of
Band I, II, or III defined in 3GPP-R5, press the Default all limits to... side key
and then select the band. Refer to Appendix A: Measurement Limit Defaults for
information about the default settings of each measurement limit.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-15
3GPP-R99/R5 Spectrum Analysis
Zone A
BCBC
Zone A
When you set limits for the spectrum emission mask measurement, perform the
following steps to open another limits editor:
1. Press the Select row to edit side key.
2. Turn the general purpose knob (or press the arrow keys just above the knob) to
select the SEM Offset From Channel row in the table.
3. Press the Edit SEM Offset Limits... side key.
This opens the measurement limits editor to specify the detail of the limits for the
spectrum emission mask measurement. For more information, refer to the
following section, Setting the Spectrum Emission Mask Limits.
Setting the Spectrum
Emission Mask Limits
When you select the SEM Offset From Channel row in the measurement limits
editor and then press the Edit SEM Offset Limits... side key, another limits editor
for the spectrum emission mask measurement is displayed as shown in Figure 2-10.
2-16
Figure 2-10: Spectrum emission mask measurement limits editor
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
3GPP-R99/R5 Spectrum Analysis
Table 2-2 lists the measurement limit items that can be set in the measurement
limits editor.
Table 2-2: Limit settings for the spectrum emission mask measurement
Item Description Limit ranges
Enable Enables or disables use of the mask in the specified zone (A, B, C, D, or E). -
−
Beginning Frequency Sets the beginning frequency relative to the center frequency for the zone.
Ending Frequency Sets the ending frequency relative to the center frequency for the zone.
Measurement Bandwidth Sets the measurement RBW (Resolution Bandwidth) for the zone.
Offset from Carrier Specifies which offset side is to be measured.
You can select Upper (positive), Lower (negative), or Both.
Fail if signal exceeds Selects the fail mode to detect failure conditions between the measurement
results and the test limits. The choices are:
Absolute:
Failure is detected when one of the absolute measurement results is larger
than the Beginning Absolute Limit and/or Ending Absolute Limit.
Relative:
Failure is detected when one of the relative measurement results is larger
than the Beginning Relative Limit and/or Ending Relative Limit.
8 to 8 GHz
−
8 to 8 GHz
−
8 to 8 GHz
-
-
Rel OR Abs:
Failure is detected when one of the absolute measurement results is larger
than the Beginning Absolute Limit and Ending Absolute Limit
OR one of the relative measurement results is larger than the Beginning
Relative Limit and Ending Relative Limit.
Rel AND Abs:
Failure is detected when one of the absolute measurement results is larger
than the Beginning Absolute Limit and Ending Absolute Limit
AND one of the relative measurement results is larger than the Beginning
Relative Limit and Ending Relative Limit.
Beginning Absolute Limit Sets an absolute level limit at Beginning Frequency.
Ending Absolute Limit Sets an absolute level limit at Ending Frequency.
Beginning Relative Limit Sets a relative level limit at Beginning Frequency.
Ending Relative Limit Sets a relative level limit at Ending Frequency.
−
200 to 200 dBm
−
200 to 200 dBm
−
200 to 200 dBc
−
200 to 200 dBc
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3GPP-R99/R5 Spectrum Analysis
Perform the following steps to set measurement limits in the limits editor:
1. Press the Select column to edit side key.
2. Turn the general purpose knob (or press the arrow keys just above the knob) to
select the column that you want to edit.
3. Press the Enable side key to enable or disable use of the limits for the zone.
4. Press the side key corresponding to the limit item, and then use the general
purpose knob or the arrow keys to set the value.
5. If you want to use a given measurement limit set for the frequency band of
Band I, II, or III defined in 3GPP-R5, press the Default limits to... side key and
then select the band. Refer to Appendix A: Measurement Limit Defaults for
information about the default settings of each measurement limit.
6. When you press the Rescale Graph side key, the graph is rescaled to match the
set limits.
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3GPP-R99/R5 Spectrum Analysis
Saving and Loading
Measurement Limits
Measurement limits that set in the limits editor can be saved to a file and loaded
from a file. This section describes how to save and load measurement limits.
Refer to your instrument user manual for further information about file operation
including how to enter a file name and how to delete a file.
Saving the Limits.
1. When you open the spectrum emission mask measurement limits editor, press
the Cancel-Back (MENU) side key to return the measurement limit editor (see
Figure 2-9 on page 2-14).
2. Press the Save Limits side key to open the Save to File menu.
You can save the limits by using the preset file name or by entering a new file
name.
3. To use the preset file name, press one of the following side keys:
Save to LimitsA, Save to LimitsB, or Save to LimitsC.
4. To enter a new file name, type a file name in the text box at the top of the menu,
and then press the Save File Now side key.
The file extension *.lmt is automatically added to the limits file.
Perform the following steps to save the current limits to a file:
Loading the Limits.
1. When you open the spectrum emission mask measurement limits editor, press
the Cancel-Back (MENU) side key to return the measurement limit editor (see
Figure 2-9 on page 2-14).
2. Press the Load Limits side key to open the Load From File menu.
3. To load limits from the preset file, press one of the following side keys:
Load from LimitsA, Load from LimitsB, or Load from LimitsC.
4. To load limits from an existing file, select the file from the file list, and then
press the Load File Now side key.
Perform the following steps to load the limits from a file:
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3GPP-R99/R5 Spectrum Analysis
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3GPP-R99 Uplink Modulation Analysis
Standard... W-CDMA-UL
Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mode
S/A
Demod
Time
Measure menu items
This section describes the basic operation for the 3GPP-R99 uplink analysis in the
Demod (modulation analysis) mode. You can access the measurement item by
pressing Demod →Standard... →W-CDMA-UL as shown in Figure 2-11.
Figure 2-11: 3GPP-R99 uplink modulation analysis measurement menu
The measurement in the Demod mode is based on the digital modulation analysis
function. For the digital modulation analysis, refer to your instrument user manual.
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3GPP-R99 Uplink Modulation Analysis
Measurement Procedure
The following procedure shows you how to acquire data of multiple slots in
advance, measure continuous data, and obtain continuous code domain power:
NOTE.
For details on basic operation of the analyzer, refer to your instrument
user manual.
1. Press the Demod key on the front panel.
2. Press the side key Standard... →W-CDMA-UL.
3. Press the Frequency/Channel key on the front panel to set the frequency.
If you use the channel table, do these steps:
Press the Channel Table... side key and select W-CDMA-UL.
Press the Channel side key and select a channel by rotating the general
purpose knob.
The center frequency is set to the value corresponding to the channel.
4. Press the Span key on the front panel to set the span.
5. Press the Amplitude key on the front panel to set the amplitude appropriately.
NOTE.
If the input level is too high, “Overrange - increase RefLev or Atten”
displays in the red box at the center top of the screen. If this occurs, raise the
reference level.
6. Press the Acquisition/Analysis key on the front panel and then the
Acquisition Length side key to set the time length to acquire one block.
2-22
Suppose that one block contains M frames; the acquisition length is calculated
with this equation:
(One block acquisition length) = M × (One frame acquisition length)
One frame acquisition length is determined by span and indicated on the
Spectrum Length side key.
The number of frames M required for measuring N slots must meet the
following condition:
M > K × (N + 1.2) + 1
where
K =16.7 (for span 20 MHz and 15 MHz)
8.34 (for span 10 MHz)
4.17 (for span 5 MHz)
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3GPP-R99 Uplink Modulation Analysis
7. After acquiring measurement data, stop the acquisition.
If you are acquiring data in the continuous mode, press the Run/Stop key.
8. Press the Measure key on the front panel and select measurement items. For
example, press the Power Codogram side key to observe the code domain
power spectrogram.
9. Press the Meas Setup key on the front panel and set the measurement
parameters. Refer to page 2-24 for details of the Meas Setup menu.
a. Press the side key Modulation Parameters... → Measurement Mode...
and select the type of signal: DPDCH/DPCCH, PRACH, or PCPCH.
b. Perform the following procedure based on the type of signal.
For DPDCH/DPCCH
Press the Scrambling Code Type side key to select the type of scrambling
code: Long or Short.
For PRACH or PCPCH
Press the Threshold side key to set the threshold for judging an input
signal as burst. The setting range is -100 to 10 dB relative to the reference
level.
c. Press the Scrambling Code side key to input the scrambling code number.
10. Set the analysis range in the overview.
Refer to your instrument user manual for the details.
11. Press the Meas Setup key on the front panel and then the Analyze side key to
perform measurement for the frames in the analysis range. The measurement
results and waveform are displayed in the main view.
Change the scale and format of view as needed. Refer to page 2-27 for
information about setting the views specific to W-CDMA uplink analysis.
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3GPP-R99 Uplink Modulation Analysis
Figure 2-12 shows an example of the code domain power measurement.
Meas Setup Menu
Analyze
Modulation Parameters...
Figure 2-12: Code domain power measurement example
The Meas Setup menu for the W-CDMA uplink analysis contains the following
controls:
Performs analysis for time slots in the analysis range.
Sets a measurement parameter to a nonstandard value.
The following setting items are provided:
Measurement Mode...
DPDCH/DPCCH
PRACH
PCPCH
Selects the type of uplink signal.
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3GPP-R99 Uplink Modulation Analysis
Scrambling Code Type.
Selects the scrambling code type when the Measurement
Mode is DPDCH/DPCCH:
Long
Short
Scrambling Code.
Sets the scrambling code number.
Range: 0 to 16777215.
Threshold.
Sets the threshold level to detect a burst when the Measurement Mode
is PRACH/PCPCH.
Range: −100 to 10 dB relative to the reference level (default: −30 dB).
Measurement Filter...
None (no filter)
RootRaisedCosine (default)
Reference Filter...
None (no filter)
Selects a filter for demodulating digitally modulated signals:
Selects a filter for creating reference data:
Auto Carrier
Frequency Offset
RaisedCosine (default
Gaussian
For the filters, refer to Process Flow of Digitally Modulated Signal in your
instrument user manual.
Filter Parameter.
Sets an α/BT value for Measurement Filter and Reference Filter
described above. Range: 0.0001 to 1 (default: 0.22)
Selects whether to detect the carrier automatically.
On. Default. Automatically detects the carrier for every frame.
The error from the center frequency is shown on the Freq Error side key.
Off. Sets the carrier frequency using Frequency Offset.
Sets the carrier frequency when Off is selected in Auto Carrier.
Input the carrier offset from the center frequency.
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3GPP-R99 Uplink Modulation Analysis
In this example, the symbol rate of the analysis data is 30k.
No amplitude change
Symbol rate = 15k Symbol rate = 30k Symbol rate = 60k
The amplitude of the
data part increases.
Control part
Data part
Determining the Symbol Rate
If the symbol rate of the analysis data is unknown, use the following steps to
determine the rate.
1. Press Demod → Standard... → W-CDMA-UL.
2. Press Measure → Code Domain Power.
3. Referring to the basic measurement procedure described just above, set the
measurement parameters and display the measurement results and graph on the
main view.
4. Press the View: Define key and then Symbol Rate... side key.
5. Select 15k (the minimum value).
Check the amplitude of the data part adjacent to the control part.
6. Set the symbol rate to the next higher value (initially 30k).
Check whether the amplitude of the data part is larger than the previous one.
Figure 2-13: Determining the symbol rate
Repeat step 6 until the amplitude remains unchanged. The symbol rate of the
analysis data is determined to the value immediately before the one for which the
amplitude does not change (see Figure 2-13).
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RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Scale and Format of View
Preamble
Signature number in preamble
Time slot number in the radio frame
Time slot number in the analysis range
(0 is the last)
The following main views are specific for the measurement items of the W-CDMA
uplink analysis.
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
Symbol constellation
Symbol EVM
Symbol eye diagram
Symbol table
Modulation accuracy
Each view (and its specific menu) is described on the following pages. In the
main view, the time slot table shown in Figure 2-14 is displayed in addition to
waveform and measurement results.
3GPP-R99 Uplink Modulation Analysis
View: Define Menu
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Figure 2-14: Time slot table
The View: Define menu is common to all main views of the W-CDMA uplink
measurement items, and contains the following controls:
Show Views.
Single. Displays only the view selected by the View: Select key.
Multi. Displays the overview, subview, and main view (default).
Selects the view style:
2-27
3GPP-R99 Uplink Modulation Analysis
Overview Content...
Waveform (power versus time)
Spectrogram
Subview Content...
Spectrum
Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Selects a view to display in the overview:
Selects a view to display in the subview:
Time Slot.
Sets a time slot number to position the marker.
Range: 0 to the number of slots −1
Symbol Rate...
15 k
30 k
60 k
120 k
240 k
480 k
960 k (default)
Short Code.
Sets the symbol rate for displaying symbol constellation:
Sets a short code number to position the marker.
Range: 0 to 6 channels.
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Code Domain Power
Channel number
Horizontal Scale
Horizontal Start
Vertical Scale
Vertical Stop
Marker readout
Code domain power
Time slot number in radio frame
3GPP-R99 Uplink Modulation Analysis
If you select Code Domain Power in the Measure menu, the code domain power is
displayed for each short code. See the display in Figure 2-15.
Figure 2-15: Code domain power versus Short code
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3GPP-R99 Uplink Modulation Analysis
Scale Menu
Use the following menu items to set the scale:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the waveform.
Horizontal Scale.
Horizontal Start.
Vertical Scale.
Vertical Stop.
Sets the scale of the horizontal axis. Range: 1.75 to 7 channels.
Sets the start channel number of the horizontal axis.
Sets the scale of the vertical axis. Range: 1 to 100 dB.
Sets the maximum value (top edge) of the vertical axis.
Range: −100 to 100 dB.
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full-scale value.
Selects whether to represent the vertical axis (amplitude) with relative or
absolute values.
Relative. The vertical axis represents power relative to the total power of
all channels.
Absolute. The vertical axis represents absolute power of each channel.
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Power Codogram
Horizontal Scale
Horizontal Start
Ver tica l S i ze
Vertical Start
Marker readout
Color Stop
Code domain power
TS: Slot number in the radio frame
SIG: Signature number in preamble
Slot number based on the end of analysis range (0)
Relative time from completion of data acquisition
Channel number
Color Scale
3GPP-R99 Uplink Modulation Analysis
If you select Power Codogram in the Measure menu, the code domain power is
displayed with spectrogram. See the power codogram in Figure 2-16.
Figure 2-16: Power codogram
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3GPP-R99 Uplink Modulation Analysis
Scale Menu
Use the following menu items to set the scale:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the entire waveform.
Horizontal Scale.
Horizontal Start.
Vertical Size.
Sets the scale of the horizontal axis. Range: 1.75 to 7 channels.
Sets the start channel number of the horizontal axis.
Sets the full scale of the vertical axis in frames.
Range: 58 to 59392 frames.
Vertical Start.
Color Scale.
Sets the start frame number of the vertical axis.
Sets the scale (the value subtracting the minimum power value from
the maximum) of the color axis:
10 dB
20 dB
50 dB
100 dB
The spectrogram is displayed in 100 steps (100 colors) from the minimum value
(blue) to the maximum value (red) in the default state.
Color Stop.
Sets the maximum value (top edge) of the color axis.
Range: −50 to 50 dB.
Full Scale.
Sets the maximum value of the color axis to the reference level and the
height to 100 dB.
Y Axis.
Selects whether to represent the Y (color) axis with relative or
absolute values.
Relative. Y axis shows power relative to the total power of all channels.
Absolute. Y axis shows absolute power of each channel.
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Code Power versus Time Slot
TS: Slot number in radio frame
SIG: Signature number in preamble
Horizontal Scale
Horizontal Start
Vertical Scale
Vertical Stop
Marker readout
Slot power
Last slot number in the analysis range
If you select Code Power versus Time Slot in the Measure menu, the code domain
power is displayed for each slot. See the display in Figure 2-17.
3GPP-R99 Uplink Modulation Analysis
Figure 2-17: Code domain power versus Time slot
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3GPP-R99 Uplink Modulation Analysis
Scale Menu
Use the following menu items to set the scale:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the entire waveform.
Horizontal Scale.
Horizontal Start.
Vertical Scale.
Vertical Stop.
Sets the scale of the horizontal axis (number of slots).
Sets the start slot number of the horizontal axis.
Sets the scale of the vertical axis. Range: 1 to 100 dB.
Sets the maximum value (top edge) of the vertical axis.
Range: −100 to 100 dB.
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full scale value.
Selects whether to represent the vertical (amplitude) axis with relative
values or absolute values.
Relative. The vertical axis represents the power relative to the total power of
all channels.
Absolute. The vertical axis represents the absolute power of each channel.
Tot al Pow e r.
On. Displays total power of time slots.
Off. Displays power of the short code specified with Short Code (refer to
Determines whether to display the total power of time slots.
page 2-28) for each time slot.
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Code Power versus Symbol
Channel number (Slot number in the radio frame)
Horizontal Scale
Horizontal Start
Vertical Scale
Vertical Stop
Marker readout
Symbol number
Channel number
Slot number in the radio frame
Symbol power
If you select Code Power versus Symbol in the Measure menu, the code domain
power is displayed for each symbol. See the display in Figure 2-18.
3GPP-R99 Uplink Modulation Analysis
Figure 2-18: Code domain power versus Symbol
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3GPP-R99 Uplink Modulation Analysis
Scale Menu
Use the following menu items to set the scale:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the entire waveform.
Horizontal Scale.
Horizontal Start.
Vertical Scale.
Vertical Stop.
Sets the scale of the horizontal axis (number of symbols).
Sets the start symbol number of the horizontal axis.
Sets the scale of the vertical axis. Range: 1 to 100 dB.
Sets the maximum value (top edge) of the vertical axis.
Range: −100 to 100 dB.
Full Scale.
Y Axis.
Sets the scale of the vertical axis to default full-scale value.
Selects whether to represent the vertical (amplitude) axis with relative
values or absolute values.
Relative. The vertical axis represents power relative to the total power of
all channels.
Absolute. The vertical axis represents absolute power of each channel.
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Symbol Constellation
Origin offset measurement value
Marker readout
Scale of amplitude
Channel numberSymbol number
Channel number
Time slot number in radio frame
3GPP-R99 Uplink Modulation Analysis
The symbol constellation is displayed when you select Symbol Constellation in
the Measure menu. See the display in Figure 2-19.
Figure 2-19: Symbol constellation
Scale Menu
Use the following menu items to set the scale:
Measurement Content...
Vec tor. Selects vector display. A signal represented with phase and amplitude
Selects vector or constellation display.
is displayed in polar coordinate or IQ diagram. The red point indicates the
symbol position of the measured signal, and the yellow trace indicates the
locus of the signal between symbols.
Constellation. Selects constellation display. It is the same as the vector
display, except that only symbols of the measured signal are indicated in red,
and the locus between symbols is not shown. The cross marks indicate the
symbol positions of an ideal signal.
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3GPP-R99 Uplink Modulation Analysis
Horizontal Scale
Horizontal Start
Vertical Scale
Vertical Start
Vertical Offset
Channel number
Symbol number
Marker readout
Vertical Scale
Measurement Content = Mag Error or Phase Error
Horizontal Scale
Horizontal Start
Measurement Content = EVM
EVM
Magnitude error
Phase error
Waveform quality (
ρ
)
Analysis length
(number of symbols)
Time slot number in radio frame
Symbol EVM
When you select Symbol EVM in the Measure menu, EVM is displayed for each
symbol. See the display in Figure 2-20.
Figure 2-20: Symbol EVM
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3GPP-R99 Uplink Modulation Analysis
Scale Menu
Use the following menu items to set the scale:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the entire waveform.
Horizontal Scale.
Horizontal Start.
Vertical Scale.
Sets the scale of the horizontal axis (number of symbols).
Sets the start symbol number of the horizontal axis.
Sets the scale of the vertical axis. Range: 100m to 100% (EVM),
200m to 200% (Mag Error), 450m to 450_ (Phase Error)
Vertical Start.
When the measurement content is EVM, sets the minimum value
(bottom edge) of the vertical axis. Range: -100 to 100% (EVM)
Vertical Offset.
When the measurement content is Mag Error or Phase Error, sets the
center value ((maximum + minimum) / 2) of the vertical axis.
Range: -200 to 200% (Mag Error), -450 to 450F (Phase Error)
Full Scale.
Measurement Content...
Sets the scale of vertical axis to the default full-scale value.
Selects a parameter of the vertical axis.
EVM. Displays EVM on the vertical axis (Error Vector Magnitude).
Mag Error. Displays magnitude error on the vertical axis.
Phase Error. Displays phase error on the vertical axis.
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3GPP-R99 Uplink Modulation Analysis
Channel numberSymbol number
Marker readout
Time slot number in the radio frame
Channel number
Symbol Eye Diagram
The symbol eye diagram is displayed when you select Symbol Eye Diagram in the
Measure menu. See the display in Figure 2-21.
Figure 2-21: Symbol eye diagram
Scale Menu
Use the following menu items to set the scale:
Measurement Content...
I. Displays I data on the vertical axis (default).
Q. Displays Q data on the vertical axis.
Tre ll is . Displays phase on the vertical axis.
Eye Length.
Enters the number of display symbols on the horizontal axis.
Selects the vertical axis of the eye diagram.
Range: 1 to 16 (default: 2)
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Symbol Table
Symbol number
Marker readout
Channel number
3GPP-R99 Uplink Modulation Analysis
When you select Symbol Table in the Measure menu, a symbol table is
displayed. See Figure 2-22.
Figure 2-22: Symbol table
Scale Menu
Use the following menu items to set the scale:
Radix.
Selects the radix for displaying the table:
Hex. Hexadecimal digit
Oct. Octal digit
Bin. Binary digit (default)
Rotate.
Sets value start position. Range: 0 to 3.
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3GPP-R99 Uplink Modulation Analysis
Measurement results
PCDE (Peak Code Domain Error)
@ channel
Magnitude error (RMS)
Phase error (RMS)
Waveform quality (ρ)
Frequency error
Origin offset (IQ feedthrough)
Marker readout
Time at the marker position
(relative to the end of data acquisition)
Constellation view
Time slot number in radio frame
Measurement results
EVM (Error Vector Magnitude)
(RMS and peak)
Magnitude error (RMS and peak)
Phase error (RMS and peak)
These values are displayed when you
select the constellation view.
Modulation Accuracy
The constellation of all channels before the despread is displayed when you select
Modulation Accuracy in the Measure menu.
When you press the View: Select key on the front panel to select the constellation
view, the measurement results for the time slot are shown instead of the overview
(see Figure 2-23).
Figure 2-23: Modulation accuracy
2-42
The view settings are the same as for Symbol Constellation. Refer to Symbol
Constellation on page 2-37.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
3GPP-R5 Downlink Modulation Analysis
Standard... 3GPP-R5-DL
Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mode
S/A
Demod
Time
Measure menu items
This section describes the basic operation of the 3GPP-R5 downlink analysis in the
Demod (Modulation Analysis) mode. You can access the measurement items by
pressing Demod →Standard... →3GPP-R5-DL as shown in Figure 2-24.
Figure 2-24: 3GPP-R5 downlink modulation analysis measurement menu
The measurement in the Demod mode is based on the digital modulation analysis
function. For the digital modulation analysis, refer to your instrument user manual.
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3GPP-R5 Downlink Modulation Analysis
Measurement Procedure
The following procedure shows you how to acquire data of multiple slots in
advance, measure continuous data, and obtain continuous code domain power:
NOTE.
user manual.
1. Press the Demod key on the front panel.
2. Press the side key Standard... →3GPP-R5-DL.
3. Press the Frequency/Channel key on the front panel to set frequency.
4. Press the Span key on the front panel to set the span.
5. Press the Amplitude key on the front panel to set the amplitude appropriately.
NOTE.
displays in the red box at the center top of the screen. If this occurs, raise the
reference level.
6. Press the Acquisition/Analysis key on the front panel and then the
For details on basic operation of the analyzer, refer to your instrument
If you use the channel table, perform these steps:
a. Press the Channel Table... side key and select W-CDMA-DL.
b. Press the Channel side key and select a channel by rotating the general
purpose knob.
The center frequency is set to the value corresponding to the channel.
If the input level is too high, “Overrange - increase RefLev or Atten”
Acquisition Length side key to set the time length to acquire one block.
2-44
Suppose that one block contains M frames; the acquisition length is calculated
with this equation:
(One block acquisition length) = M × (One frame acquisition length)
One frame acquisition length is determined by span and indicated on the
Spectrum Length side key.
The number of frames M required for measuring N slots must meet the
following condition:
M > K × (N + 1.2) + 1
where
K = 16.7 (for the span of 20 MHz and 15 MHz)
8.34 (for the span of 10 MHz)
4.17 (for the span of 5 MHz)
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3GPP-R5 Downlink Modulation Analysis
7. After acquiring measurement data, stop the data acquisition. If you are
acquiring data in the continuous mode, press the Run/Stop key.
8. Press the Measure key on the front panel and select measurement items. For
example, press the Power Codogram side key to observe the code domain
power spectrogram.
9. Press the Meas Setup key on the front panel and set the measurement
parameters. Refer to page 2-47 for details of the Meas Setup menu.
10. Set the analysis range in the overview. Refer to your instrument user manual
for the details.
11. Press the Analyze side key to perform measurement for the frames in the
analysis range. The measurement result and waveform are displayed in the
main view.
Change the scale and format of the view as needed. Refer to page 2-50 for
setting views specific to the 3GPP-R5 downlink analysis.
12. If the level of input signals is low, the waveform may not be displayed
correctly. In this case, perform the following procedure:
NOTE.
The 3GPP-R5 downlink signal analysis may not be performed correctly if
the P-SCH, S-SCH, and PCPICH channels are too low to be detected. An error
occurs when one of these channel levels is lower than several tenths the sum of
other channel levels. In this case, set Scrambling Code Search to Off and specify
the scrambling code with the Scrambling Code side key.
a. Press the Meas Setup key on the front panel.
b. Press the Modulation Parameters... side key.
c. Press the Scrambling Code Search side key to select Off.
d. Press the Scrambling Code side key and enter the scrambling code.
The analyzer performs the measurement with the value set here in place of
detecting the scrambling code.
e. Press the Meas Setup key on the front panel.
f. Press the Analyze side key to perform measurement for the frames in the
analysis range.
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3GPP-R5 Downlink Modulation Analysis
Figure 2-25 shows an example of the code domain power measurement.
Figure 2-25: Example of the code domain power measurement
Change the scale and format of the view as needed. Refer to page 2-50 for setting
views specific to the 3GPP-R5 uplink analysis.
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Measurement Setup Menu
The Meas Setup menu for the 3GPP-R5 downlink modulation analysis contains the
following controls:
3GPP-R5 Downlink Modulation Analysis
Analyze
Modulation Parameters...
Performs measurements for time slots in the analysis range.
NOTE.
described below, press the Analyze side key to perform the measurement for the
modified settings.
Sets a measurement parameter to a non-standard value. The following controls are
provided:
Scrambling Code Search.
scrambling code from input signals.
On. Detects a scrambling code automatically from the input signal to perform
Off. Default. Performs measurement using the scrambling code that has been
NOTE.
appropriate scrambling code for reliable detection when either multiple code
channels are active or the sync channels have low power.
Also refer to Note on page 2-45.
When you change settings of the parameters in the Meas Setup menu
Selects whether to perform analysis by detecting a
the measurement.
set manually with Scrambling Code described below.
The manual mode (Scrambling Code Search Off) should be used with the
Scrambling Code.
Scrambling Code Search. The analyzer performs measurement using the set
scrambling code. Range: 0 to 24575 (default: 0).
The 3GPP standard defines the scrambling code with the following formulas.
Input the n value to set the code.
Primary scrambling code: n = 16 * i where i = 0 to 511
Secondary scrambling code: n = 16 * i + k where k = 1 to 15
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Sets the scrambling code number when you select Off in
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3GPP-R5 Downlink Modulation Analysis
Use Alternative Scramb. Code...
Selects the despread method to display the
measurement results:
Not Used. Default. Uses the primary scrambling code only (without the left
and the right alternative scrambling codes) to despread the input signal.
Primary. Uses the primary scrambling with the left and the right alternative
scrambling codes to despread the input signal.
Left Alternative. Uses the left alternative scrambling code to despread the
input signal.
Right Alternative. Uses the right alternative scrambling code to despread the
input signal.
Primary, Left Alternative and Right Alternative use the proprietary algorithm
to enhance the sensitivity by approximately 20 to 30 dB compared to Not Used.
Not Used does not use the alternative scrambling codes, providing faster
measurements.
Use SCH Part.
Selects whether to include or exclude the SCH portion when
calculating the code domain power.
On. Calculates the code domain power by including the SCH portion.
Off. Default. Calculates the code domain power by excluding the SCH portion.
Composite.
Determines whether to perform the composite analysis (automatic
detection of symbol rate).
On. Default. Specifies that the composite analysis is performed.
Off. Specifies that the composite analysis is not performed.
NOTE.
You should usually specify that composite analysis is performed. If a
normal analysis does not result, select Off in this command and select a specific
symbol rate with Symbol Rate in the View: Define menu.
16QAM Detection.
Selects whether to detect the QPSK or 16QAM code channel
automatically.
On. Default. Automatically detects whether the code channel is QPSK or
16QAM.
Off. Assumes that all code channels are QPSK.
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3GPP-R5 Downlink Modulation Analysis
Auto Carrier
Measurement Filter...
None (no filter)
RootRaisedCosine (default)
Reference Filter...
None (no filter)
RaisedCosine (default)
Gaussian
Selects a filter for demodulating digitally-modulated signals:
Selects a filter for creating reference data:
For the filters, refer to Process Flow of Digitally-Modulated Signal in the your
instrument user manual.
Filter Parameter.
Sets the a/BT value for Measurement Filter and Reference Filter
described above. Range: 0.0001 to 1 (default: 0.22).
Selects whether to detect the carrier automatically.
On. Default. Automatically detects the carrier for every frame.
The error from the center frequency is shown on the Freq Error side key.
Frequency Offset
EVM IQ Origin Offset
Off. Sets the carrier frequency using Frequency Offset described below.
Sets the carrier frequency when Auto Carrier is selected to Off.
Input the carrier offset from the center frequency.
Determines whether to include or exclude the I/Q origin offset in the EVM, Rho,
and PCDE calculation.
Include. Default. Includes the I/Q origin offset in the EVM, Rho, and PCDE
calculation.
Exclude. Excludes the I/Q origin offset from the calculation.
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3GPP-R5 Downlink Modulation Analysis
Scrambling code number
SCG (Scrambling Code Group)
SSCH (Secondary Synchronization Channel)
Time slot number in the radio frame
Time slot number in the analysis range
(0 is the last)
Scale and Format of View
The following main views are specific for the measurement items of the 3GPP-R5
downlink analysis in Demod mode:
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
Symbol constellation
Symbol EVM
Symbol eye diagram
Symbol table
Modulation accuracy
Each view (and its specific menu) is described on the following pages. In the main
view, the time slot table shown in Figure 2-26 is displayed in addition to waveform
and measurement results.
Figure 2-26: Time slot table
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3GPP-R5 Downlink Modulation Analysis
View: Define Menu
The View: Define menu is common to all main views of the 3GPP-R5 downlink
measurement items. It contains the following controls:
Show Views.
Single. Displays only the view selected by the View: Select key.
Multi. Default. Displays the overview, subview, and main view.
Overview Content...
Waveform (power versus time)
Spectrogram
Subview Content...
Spectrum
Code Domain Power
Power Codogram
CDP vs Time Slot (code domain power versus time slot)
CDP vs Symbol (code domain power versus symbol)
Selects the view style:
Selects a view to display in the overview:
Selects a view to display in the subview:
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Time Slot.
Sets a time slot number to position the marker.
Range: 0 to the number of slots −1
Channelization Code.
Sets a channelization code number to position the marker.
Range: Channel 0 to 511.
Multi Slot.
Selects whether to display single slot or multiple slots in the main view.
This selection affects only the code domain power versus symbol view and the
symbol EVM view. In the other views, it has no effect.
Off. Displays one time-slot selected by the Time Slot side key.
On. Displays up to 15 time-slots in the main view.
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3GPP-R5 Downlink Modulation Analysis
Menu Off.
Removes the side menu from the screen to expand the waveform and
measurement result area. Press the MENU side key when you return to the
original display.
Show SCH Part.
Off. Hides the SCH part.
On. Displays the SCH part.
Symbol Rate...
960 k
480 k
240 k
120 k
60 k
30 k
15 k
7.5 k
Determines whether to display SCH at the beginning of data.
Sets the symbol rate for displaying symbol constellation:
Composite
The default is Composite for multi-rate.
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Code Domain Power
Channelization code number (Channel number at the symbol rate, modulation type)
Horizontal Scale
Horizontal Start
Vertical Scale
Ver t i ca l S t a r t
Marker readout
Code domain power
Time slot number in the radio frame
3GPP-R5 Downlink Modulation Analysis
When you select Code Domain Power in the Measure menu, the code domain
power is displayed for each channelization code, as shown in Figure 2-27.
Figure 2-27: Code domain power
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3GPP-R5 Downlink Modulation Analysis
Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis.
Range: 16 to 512 channels.
Horizontal Start.
Sets the start channel number of the horizontal axis.
Range: 0 to [512 −(Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 μ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: −50 to Vertical Scale [dB].
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full scale value.
Selects whether to represent the vertical axis (amplitude) with relative or
absolute values.
Relative. The vertical axis represents power relative to the total power of
all channels.
Absolute. The vertical axis represents absolute power of each channel.
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RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Power Codogram
Horizontal Scale
Horizontal Start
Ver tica l S i ze
Vertical Start
Marker readout
Color Scale
Color Stop
Code domain power
Slot number in the radio frame
Slot number based on the end of analysis range (0)
Relative time from completion of data acquisition
Channelization code number (Channel number at the symbol rate, modulation
3GPP-R5 Downlink Modulation Analysis
When you select Power Codogram in the Measure menu, the code domain power
is displayed in spectrogram, as shown in Figure 2-28.
Figure 2-28: Power codogram
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3GPP-R5 Downlink Modulation Analysis
Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis.
Range: 16 to 512 channels.
Horizontal Start.
Sets the start channel number of the horizontal axis.
Range: 0 to [512 − (Horizontal Scale)].
Vertical Size.
Sets the full scale of the vertical axis in frames.
Range: 58 to 59392.
Vertical Start.
Color Scale.
Sets the start frame number of the vertical axis.
Sets the scale of the color axis (the value obtained by subtracting the
minimum value from the maximum power).
5 dB
10 dB
20 dB
50 dB
The spectrogram is displayed in 100 steps (100 colors) from the minimum value
(blue) to the maximum value (red) in the default state.
Color Stop.
Sets the maximum value (top edge) of the color axis.
Range: −50 to Color Scale [dB].
Full Scale.
Y Axis.
Sets Color Stop to 0 (zero) and Color Scale to 50 dB.
Selects whether to represent the Y (color) axis with relative or
absolute values.
Relative. The Y axis represents power relative to the total power of
all channels.
Absolute. The Y axis represents absolute power of each channel.
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Code Power versus Time Slot
S
lot number in the analysis range (Slot number in the radio frame)
Horizontal Scale
Horizontal Start
Vertical Scale
Ver t i ca l S t a r t
Marker readout
Slot power
When you select Code Power versus Time Slot in the Measure menu, the
code domain power is displayed for each slot, as shown in Figure 2-29.
3GPP-R5 Downlink Modulation Analysis
Figure 2-29: Code domain power versus Time slot
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3GPP-R5 Downlink Modulation Analysis
Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the entire waveform.
Horizontal Scale.
Sets the scale of the horizontal axis (number of slots).
Range: N/8 to N slots (N: the number of slots in the analysis range.)
Horizontal Start.
Sets the start slot number of the horizontal axis.
Range: −(N − 1) to [1 − (Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 μ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: − 25 to [(Vertical Scale) + 25] dB.
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full scale value.
Selects whether to represent the vertical (amplitude) axis with relative or
absolute values.
Relative. The vertical axis represents time slot power relative to the power of
the first time slot in the analysis range.
Absolute. The vertical axis represents absolute power of time slots.
Select Power.
Code. Shows the power of all channels or the specified channel depending on
Selects the channel to show the power for each time slot.
the setting of Total Power described below.
PSCH. Shows the power of the PSCH (Primary Synchronization Channel).
SSCH. Shows the power of the SSCH (Secondary Synchronization Channel).
Tot al Pow e r.
Determines whether to display the total power for each time slot when
you select Code with Select Power described above.
On. Default. Displays the total power of all channels for each time slot.
Off. Displays power of the channel specified with Channelization Code in the
View: Define menu (refer to page 2-51).
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Code Power versus Symbol
Channelization code number
Horizontal Scale
Horizontal Start
Vertical Scale
Vertical Start
Marker readout
Symbol number
Symbol power (Channel number at the symbol rate, modulation type)
Channel number (Symbol rate)
Time slot number in the radio frame
When you select Code Power versus Symbol in the Measure menu, the
code domain power is displayed for each symbol, as shown in Figure 2-30.
3GPP-R5 Downlink Modulation Analysis
Figure 2-30: Code domain power versus Symbol
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3GPP-R5 Downlink Modulation Analysis
Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of symbols).
Range: 0 to 320 symbols.
Horizontal Start.
Sets the start symbol number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 μ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: −50 to Vertical Scale [dB].
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full-scale value.
Selects whether to represent the vertical (amplitude) axis with relative or
absolute values.
Relative. The vertical axis represents power relative to the total power of
all channels.
Absolute. The vertical axis represents absolute power of each channel.
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Symbol Constellation
Origin offset measurement value
Marker readout
Scale of amplitude
Real channel number (Symbol rate)
Time slot number in the radio frame
Channelization code number
Symbol number
3GPP-R5 Downlink Modulation Analysis
The symbol constellation is displayed when you select Symbol Constellation in the
Measure menu, as shown in Figure 2-31.
Scale Menu
Figure 2-31: Symbol constellation
Use the following controls to set the scale:
Measurement Content...
Vec tor. Selects vector display. A signal represented by phase and amplitude is
Selects vector or constellation display.
displayed in polar coordinate or IQ diagram. The red point indicates the
symbol position of the measured signal, and the yellow trace indicates the
locus of the signal between symbols.
Constellation. Selects constellation display. It is the same as the vector
display, except that only symbols of the measured signal are indicated in red,
and the locus between symbols is not shown. The cross marks indicate the
symbol positions of an ideal signal.
You can select degree or radian for the angular unit by pressing System →
Instrument Setup... → Angular Units...
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3GPP-R5 Downlink Modulation Analysis
EVM
Magnitude error
Phase error
Waveform quality (ρ)
Analysis length
(number of symbols)
Horizontal Scale
Horizontal Start
Vertical Scale
Vertical Start
Vertical Offset
Channelization code numberSymbol number
Marker readout
Vertical Scale
Measurement Content = Mag Error or Phase Error
Horizontal Scale
Horizontal Start
Measurement Content = EVM
Channel number (Symbol rate)
Time slot number in the radio frame
Symbol EVM
When you select Symbol EVM in the Measure menu, EVM (Error Vector
Magnitude) is displayed for each symbol, as shown in Figure 2-32.
Figure 2-32: Symbol EVM
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3GPP-R5 Downlink Modulation Analysis
Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of symbols).
Range: 0 to 320 symbols.
Horizontal Start.
Sets the start symbol number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Refer to Table 2-3 for the setting range.
Vertical Start.
Sets the minimum value (bottom edge) of the vertical axis when the
measurement content is EVM. Refer to Table 2-3 for the setting range.
Vertical Offset.
Sets the center value ((maximum + minimum) / 2) of the
vertical axis when the measurement content is Mag Error or Phase Error.
Refer to Table 2-3 for the setting range.
Full Scale.
Sets the scale of vertical axis to the default full-scale value.
Measurement Content...
EVM. Represents the vertical axis with EVM.
Mag Error. Represents the vertical axis with magnitude error.
Phase Error. Represents the vertical axis with phase error.
Selects how to display the vertical axis:
Table 2-3: Vertical scale setting range
Measurement
Content... Vertical Scale Vertical Start Vertical Offset
EVM 100
Mag Error 200
Phase Error 450
μ
to 100%
μ
to 200% -
μ
to 450
°
−
100 to 100% -
-
−
200 to 200%
−
450 to 450
°
You can select degree or radian for the angular unit by pressing System →
Instrument Setup... → Angular Units...
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3GPP-R5 Downlink Modulation Analysis
Channelization code numberSymbol number
Marker readout
Channel number (Symbol rate)
Time slot number in the radio frame
Amplitude (Channel number at the symbol rate, Modulation type)
Symbol Eye Diagram
The symbol eye diagram is displayed when you select Symbol Eye Diagram in the
Measure menu, as shown in Figure 2-33.
Figure 2-33: Symbol eye diagram
Scale Menu
Use the following controls to scale the view.
Measurement Content...
I. Default. Displays I data on the vertical axis.
Q. Displays Q data on the vertical axis.
Tre ll is . Displays phase on the vertical axis.
Eye Length.
Enters the number of display symbols on the horizontal axis.
Selects the vertical axis of eye diagram.
Range: 1 to 16 (default: 2)
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Symbol Table
Symbol number
Marker readout
Channelization code number
Symbol value (Channel number at the symbol rate, modulation type)
3GPP-R5 Downlink Modulation Analysis
The symbol table is displayed when you select Symbol Table in the Measure menu,
as shown in Figure 2-34.
Figure 2-34: Symbol table
Scale Menu
Use the following controls to scale the view:
Radix.
Selects the radix for displaying the table:
Hex. Hexadecimal digit
Oct. Octal digit
Bin. Default. Binary digit
Hex and Oct indicate values of binary data string in units of modulation symbol.
Rotate.
Sets the start position. Range: 0 to 3.
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3GPP-R5 Downlink Modulation Analysis
Measurement results
n
EVM (RMS and peak)
n
Magnitude error (RMS and peak)
n
Phase error (RMS and peak)
These values are displayed when
you select the constellation view.
Measurement results
n
PCDE (Peak Code Domain Error)
@ channel
n
EVM (RMS)
n
Phase error (RMS)
n
Waveform quality (ρ)
n
Frequency error
n
Origin offset (IQ feedthrough)
Marker readout
Time at the marker position
(relative to the end of data acquisition)
Constellation view
Time slot number in the radio frame
Modulation Accuracy
The constellation of all channels before the despread is displayed when you select
Modulation Accuracy in the Measure menu.
When you press the View: Select key on the front panel to select the constellation
view, the measurement results for the time slot are displayed instead of the
overview, as shown in Figure 2-35.
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Figure 2-35: Modulation accuracy
The view settings are the same as for Symbol Constellation.
Refer to Symbol Constellation on page 2-61.
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3GPP-R5 Uplink Modulation Analysis
Standard... 3GPP-R5-UL
Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
ACK/NACK Analysis
Mode
S/A
Demod
Time
Measure menu items
This section describes the basic operation for the 3GPP-R5 uplink analysis in the
Demod (modulation analysis) mode. You can access the measurement item by
pressing Demod →Standard... →3GPP-R5-UL as shown in Figure 2-36.
Figure 2-36: 3GPP-R5 uplink modulation analysis measurement menu
The measurement in the Demod mode is based on the digital modulation analysis
function. For the digital modulation analysis, refer to your instrument user manual.
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3GPP-R5 Uplink Modulation Analysis
Measurement Procedure
The following procedure shows you how to acquire data of multiple slots in
advance, measure continuous data, and obtain continuous code domain power:
NOTE.
For details on basic operation of the analyzer, refer to your instrument
user manual.
1. Press the Demod key on the front panel.
2. Press the side key Standard... →3GPP-R5-UL.
3. Press the Frequency/Channel key on the front panel to set frequency.
If you use the channel table, do these steps:
Press the Channel Table... side key and select W-CDMA-UL.
Press the Channel side key and select a channel by rotating the general
purpose knob.
The center frequency is set to the value corresponding to the channel.
4. Press the Span key on the front panel to set the span.
5. Press the Amplitude key on the front panel to set the amplitude appropriately.
NOTE.
If the input level is too high, “Overrange - increase RefLev or Atten”
displays in the red box at the center top of the screen. If this occurs, raise the
reference level.
6. Press the Acquisition/Analysis key on the front panel and then the
Acquisition Length side key to set the time length to acquire one block.
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Suppose that one block contains M frames; the acquisition length is calculated
with this equation:
(One block acquisition length) = M × (One frame acquisition length)
One frame acquisition length is determined by span and indicated on the
Spectrum Length side key.
The number of frames M required for measuring N slots must meet the
following condition:
M > K × (N + 1.2) + 1
where
K =16.7 (for span 20 MHz and 15 MHz)
8.34 (for span 10 MHz)
4.17 (for span 5 MHz)
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3GPP-R5 Uplink Modulation Analysis
7. After acquiring measurement data, stop the acquisition.
If you are acquiring data in the continuous mode, press the Run/Stop key.
8. Press the Measure key on the front panel and select measurement items. For
example, press the Power Codogram side key to observe the code domain
power spectrogram.
9. Press the Meas Setup key on the front panel and set the measurement
parameters. Refer to page 2-70 for details of the Meas Setup menu.
10. Set the analysis range in the overview using the Acuisition and Analysis menu.
Refer to your instrument user manual for the details.
11. Press the Analyze side key to perform measurement for the frames in the
analysis range. The measurement result and waveform are displayed in the
main view.
Figure 2-37 shows an example of the code domain power measurement.
Figure 2-37: Example of the code domain power measurement
Change the scale and format of the view as needed. Refer to page 2-76 for setting
views specific to the 3GPP-R5 uplink analysis.
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3GPP-R5 Uplink Modulation Analysis
Measurement Setup Menu
The Meas Setup menu for the uplink analysis contains the following controls:
Analyze
Modulation Parameters...
Performs measurements for time slots in the analysis range.
NOTE.
When you change settings in the Meas Setup menu, press the Analyze
side key to perform the measurement for the modified settings.
Sets a measurement parameter to a non-standard value.
The following setting items are provided:
Measurement Mode...
Selects the type of uplink signal.
(Not available for the ACK/NACK analysis.)
DPDCH/DPCCH (default)
PRACH
PCPCH
Scrambling Code Type.
Available for the DPDCH/DPCCH measurement mode.
Selects the scrambling code type:
Long (default)
Short
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Scrambling Code.
Sets the scrambling code number.
Range: 0 to 16777215 (default: 0).
Threshold.
Available for the PRACH measurement mode.
Sets the threshold level to detect a burst.
Range: −100 to 10 dB relative to the reference level (default: −30 dB).
Measurement Filter...
None (no filter)
RootRaisedCosine (default)
Reference Filter...
None (no filter)
RaisedCosine (default
Gaussian
Selects a filter for demodulating digitally-modulated signals:
Selects a filter for creating reference data:
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3GPP-R5 Uplink Modulation Analysis
For the filters, refer to Process Flow of Digitally-Modulated Signal in your
instrument user manual.
Auto Carrier
Frequency Offset
EVM IQ Origin Offset
Filter Parameter.
Sets an α/BT value for Measurement Filter and Reference Filter
described above. Range: 0.0001 to 1 (default: 0.22)
Selects whether to detect the carrier automatically.
On. Default. Automatically detects the carrier for every frame.
The error from the center frequency is shown on the Freq Error side key.
Off. Sets the carrier frequency using Frequency Offset.
Sets the carrier frequency when Off is selected in Auto Carrier.
Input the carrier offset from the center frequency.
Determines whether to take into account the I/Q origin offset for the EVM, Rho and
PCDE measurement results.
Include. Default. Takes into account the I/Q origin offset for the results.
Exclude. Ignores the I/Q origin offset for the results.
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3GPP-R5 Uplink Modulation Analysis
HS-SCCH
Downlink Unit: Symbols
HS-PDSCH
DPCH
Uplink
• • •
20
Downlink time offset
(DTO)
HS-DPCCH
75
DPDCH
30 30
30 30
30
10 10 10 10 10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 10
30
Subframe to time-slot offset
(STO)
Displayed on the symbol table
4
30
Subframe Offset Select
Subframe to TS Offset
Downlink Time Offset
ACK/NACK Analysis Measurement Menu.
The following controls are only for
ACK/NACK analysis.
Selects how to specify the subframe offset.
Aut o. Default. The symbol table is displayed for any offset.
STO. Sets the Subframe to Time-Slot Offset (STO) using the
Subframe to TS Offset side key.
DTO. Sets the Downlink Time Offset (DTO) using the Downlink Time Offset
side key.
Specifies the subframe to time-slot offset when you select STO with the
Subframe Offset Select side key. Range: 0 to 9 symbols (default: 0).
The subframe to time-slot offset is the time offset between the start of the DPDCH
time slot and the start of the HS-DPCCH subframe (see Figure 2-38).
Specifies the downlink time offset when you select DTO with the
Subframe Offset Select side key. Range: 0 to 149 symbols (default: 1).
The downlink time offset is the time offset between the start of HS-SCCH and the
start of DPCH (see Figure 2-38).
Figure 2-38: Subframe offset
Update ACK/NACK Results
2-72
Redetects ACK and NACK indications on the existing time slot data to update the
measurement result display after you change the subframe offset manually or abort
the Analyze (top side key) operation.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Display Method for HS-DPCCH
HS-DPCCH
DPDCH 10
10 10 10
10 10 10
Display sequence
1 234
HS-DPCCH
DPDCH 10
10 10 10
10 10 10
Display sequence
1 23
4
Subframe Offset Select = AUTO
Subframe Offset Select = STO or DTO
<10
<10
NOTE. “10” in the box represents the number of symbols in a time slot.
The measurement results for each channel are normally displayed in the view for
each time slot. But HS-DPCCH has the different display methods for the settings
of Subframe Offset Select in the Meas Setup menu. This section describes how to
display HS-DPCCH in each view.
Code Domain Power
When Subframe Offset Select is set to AUTO
Each time slot is displayed without offset as the other channels (see the
upper part of Figure 2-39).
When Subframe Offset Select is set to STO (Subframe to Time slot Offset)
Each time slot is displayed with offset specified by Subframe to TS Offset in
the Meas Setup menu. Also in the total power calculation for the relative value
display, only HS-DPCCH is offset in the same way. But the last time slot is
displayed without offset (see the lower part of Figure 2-39).
When Subframe Offset Select is set to DTO (Downlink Time Offset)
Each time slot is displayed in the same manner as when Subframe Offset Select
is set to STO. But the number of offset symbols is determined by this formula:
[151 − (Downlink Time Offset)] mod 10 (see the lower part of Figure 2-39).
3GPP-R5 Uplink Modulation Analysis
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
Figure 2-39: HS-DPCCH display method (Code domain power)
2-73
3GPP-R5 Uplink Modulation Analysis
HS-DPCCH
DPDCH 10
10 10 10
Display sequence
1
10
Subframe Offset Select = STO
10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 <10
2
3
4 7
5
6
8
9
HS-DPCCH
DPDCH 10
10 10 10
Display sequence
1
Subframe Offset Select = DTO
10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 <10
4 7
2 3 5 6 8 910
NOTE. “10” in the box represents the number of symbols in a time slot.
Code Power versus Symbol
When Subframe Offset Select is set to AUTO
10 symbols are displayed for each time slot without offset as the other channels
(see the upper part of Figure 2-39 on page 2-73).
When Subframe Offset Select is set to STO (Subframe to Time slot Offset)
30 symbols are displayed for each time slot with offset specified by Subframe
to TS Offset in the Meas Setup menu. Also in the total power calculation for
the relative value display in the Code power versus Symbol view, only
HS-DPCCH is offset in the same way (see the upper part of Figure 2-40). But
when there are not enough symbols in the last part of the analysis range, 30,
20, and 10 symbols are displayed without offset as shown in the upper part of
Figure 2-40, the display sequence 8, 9, and 10, respectively.
When Subframe Offset Select is set to DTO (Downlink Time Offset)
If the specified time slot is the first one in the subframe, symbols are displayed
in the same manner as when Subframe Offset Select is set to STO. Otherwise
symbols are displayed in the same manner as when Subframe Offset Select is
set to AUTO (see the lower part of Figure 2-39).
Figure 2-40: HS-DPCCH display method (Code power versus Symbol)
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RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
3GPP-R5 Uplink Modulation Analysis
HS-DPCCH
DPDCH 10
10 10 10
Display sequence
1
6
10 10
10
10 10 10 10 <10
4
5
2
3
NOTE. “10” in the box represents the number of symbols in a time slot.
ACK/NACK Analysis
Symbols of four time slots (40 symbols) are displayed without offset (see the
upper part of Figure 2-41). But for the last three time slots, 30, 20, and 10 symbols
are displayed without offset as shown in the Figure 2-41, the display sequence 4, 5,
and 6, respectively.
Figure 2-41: HS-DPCCH display method (ACK/NACK analysis)
Power Codogram, Code Power versus Time Slot, Symbol Constellation,
Symbol EVM, Symbol Eye Diagram, and Symbol Table
Each time slot is displayed regardless HS-DPCCH.
RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
2-75
3GPP-R5 Uplink Modulation Analysis
Preamble
Signature number in preamble
Time slot number in the radio frame
Time slot number in the analysis range
(0 is the last)
Scale and Format of View
The following main views are specific for the measurement items of the 3GPP-R5
downlink analysis in Demod mode:
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
Symbol constellation
Symbol EVM
Symbol eye diagram
Symbol table
Modulation accuracy
ACK/NACK analysis
Each view (and its specific menu) is described on the following pages. In the
main view, the time slot table shown in Figure 2-42 is displayed in addition to
waveform and measurement results. Only the ACK/NACK analysis has its own
time slot table, which is shown in Figure 2-52 on page 2-93.
Figure 2-42: Time slot table
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RSA3303B, RSA3308B, & RSA3408B Option 30 User Manual
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