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4‑5x
TR 25.956
UTRA Repeater
Planning Guidelines
and System Analysis
3GPP‑Page
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V19.0.0 (PDF)
2025/09 61 p.
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Rapporteur:
Ms. Garcia Lopez, Lorena
full Table of Contents for
TR 25.956
Word version: 19.0.0
each clause number in
'red'
refers to the equivalent title in the Partial Content
1
Scope
p. 6
2
References
p. 6
3
Definitions, symbols and abbreviations
p. 6
3.1
Definitions
p. 6
3.2
Symbols
p. 7
3.3
Abbreviations
p. 7
4
System Impacts of Repeaters
p. 7
4.1
Error Vector Magnitude (EVM)
p. 7
4.2
Peak Code Domain Error (PCDE)
p. 8
4.3
Frequency error
p. 8
4.4
Adjacent Channel Leakage Ratio (ACLR)
p. 8
4.5
Time Delay
p. 9
4.6
Location Services (LCS)
p. 10
4.6.1
OTDOA
p. 10
4.6.2
Cell coverage based positioning method
p. 11
4.6.3
Network assisted GPS methods
p. 11
4.7
Automatic Gain Control (AGC)
p. 11
4.8
Adjacent Channel Rejection Ratio (ACRR)
p. 12
5
Planning with Repeaters
p. 12
5.1
Sole System
p. 12
5.1.1
Antenna Isolation
p. 12
5.1.2
Coupling loss measurements
p. 13
5.1.3
Gain Settings
p. 13
5.1.4
Delay
p. 14
5.2
Co-existence with UTRA FDD
p. 14
5.2.1
Out of band gain
p. 14
5.2.2
Isolation
p. 14
5.2.2.1
Example on application of equations
p. 15
5.3
Co-existence with UTRA TDD
p. 16
5.3.1
Isolation
p. 16
5.4
Co-existence with GSM 900 and/or DCS 1800
p. 16
5.4.1
Isolation
p. 16
5.5
Environments with low minimum coupling loss (MCL)
p. 16
5.5.1
Normal repeater parameters
p. 16
5.5.2
Repeater parameters adjusted to low MCL
p. 17
5.6
Analysis of out of band gain in the 3rd adjacent channel
p. 18
5.6.1
MCL=70 dB
p. 18
5.6.2
MCL=40 dB
p. 18
6
System Simulations and Analysis
p. 19
6.1
Down-link co-existence simulations
p. 19
6.2
Outdoor coverage (High CLRep-UE)
p. 21
6.3
Indoor coverage (Low CLRep-UE)
p. 22
6.4
Repeater up-link co-existence simulations
p. 23
6.4.1
General
p. 23
6.4.2
Simulation Assumptions
p. 25
6.4.3
Results
p. 25
6.4.4
Conclusion
p. 26
6.5
Repeater ACRR system impact simulations
p. 26
6.5.1
General
p. 26
6.5.2
Simulation Description
p. 27
6.5.2.1
Infrastructure
p. 27
6.5.2.2
Preparation
p. 27
6.5.2.3
Connection
p. 28
6.5.2.4
Iterations
p. 28
6.5.2.5
Parameters used through out the simulations
p. 29
6.5.3
Results
p. 31
6.5.3.1
288 m between repeater A and BSB
p. 31
6.5.3.2
164 m minimum distance between repeater A and BSB
p. 45
6.5.4
Conclusions
p. 58
6.5.5
Comments
p. 58
$
Change history
p. 59