ETSI TR 145 914 V13.0.0 (2016-01)

ETSI TR 1145 914 V13.0.0 (201616-01)






TECHNICAL REPORT
Digital cellular telecocommunications system (Phahase 2+);
Circuit switcheed voice capacity evolution fn for
GSM/EDGE Raaddio Access Network (GERANAN)
(3GPP TR 45.9.914 version 13.0.0 Release 13 13)

R
GLOBAL SYSTTEME FOR
MOBILE COMMUUNNICATIONS

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3GPP TR 45.914 version 13.0.0 Release 13 1 ETSI TR 145 914 V13.0.0 (2016-01)



Reference
RTR/TSGG-0145914vd00
Keywords
GSM
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3GPP TR 45.914 version 13.0.0 Release 13 2 ETSI TR 145 914 V13.0.0 (2016-01)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
http://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TR 45.914 version 13.0.0 Release 13 3 ETSI TR 145 914 V13.0.0 (2016-01)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 12
Introduction . 12
1 Scope . 14
2 References . 14
3 Definitions, symbols and abbreviations . 15
3.1 Definitions . 15
3.2 Symbols . 15
3.3 Abbreviations . 15
4 Objectives . 16
4.1 Performance Objectives . 16
4.1.1 Capacity Improvements at the BTS . 16
4.1.2 Capacity Improvements at the Air Interface . 17
4.2 Compatibility Objectives . 17
4.2.1 Maintainance of Voice Quality . 17
4.2.2 Support of Legacy Mobile Stations . 17
4.2.3 Implementation Impacts to new Mobile Statio ns . 17
4.2.4 Implementation Impacts to BSS . 17
4.2.5 Impacts to Network Planning. 18
5 Common Working Assumptions for Candidates Evaluation . 18
5.1 General parameters . 18
5.2 Definition of Model for External Interferers for Link Level Evaluations . 20
5.2.1 Synchronous Network Mode . 20
5.2.2 Asynchronous Network Mode . 21
5.2.2.1 Interferer delay profiles . 22
5.2.3 Sensitivity limited scenarios . 22
5.2.4 Frequency Offsets . 22
5.2.5 Uplink Interferer Profiles . 22
5.3 Network Configurations . 23
5.4 Channel Mode Adaptation . 23
5.5 System Performance Evaluation Method . 24
5.5.1 Definition of Effective Frequency Load for Mixed Frequency Reuse . 25
5.6 Definition of Minimum Call Quality Performance . 26
5.7 Link-to-System Mapping . 26
5.8 Impairments of the Mobile Station . 26
5.8.1 Subchannel power imbalance ratio on DL . 26
5.8.2 Frequency Offset Impairment Model in UL . 27
5.9 Reference BTS Receiver . 27
6 Speech Capacity Enhancement using DARP . 27
6.1 Concept Description . 27
6.1.1 Principle . 27
6.1.2 Downlink signal modulation schemes . 28
6.1.2.1 Equal power level between two desired users . 29
6.1.2.2 Spectrum analysis . 31
6.1.2.3 Different power levels between two desired users . 31
6.1.3 Power control in co-TCH MUROS operation . 32
6.1.4 BTS changes for co-TCH MUROS operation . 33
6.1.5 Adaptive pulse shapping for MUROS modulation . 34
6.2 Performance Characterization . 38
ETSI

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3GPP TR 45.914 version 13.0.0 Release 13 4 ETSI TR 145 914 V13.0.0 (2016-01)
6.2.1 Link Level Performance . 38
6.2.1.1 Sensitivity performance . 38
6.2.1.2 Interference performance . 40
6.2.1.2.1 MTS-1 configuration . 40
6.2.1.2.2 MTS-2 configuration . 41
6.2.1.2.3 MTS-3 configuration . 42
6.2.1.2.4 MTS-4 configuration . 43
6.2.1.3 Link level performance with power imbalance . 44
6.2.1.4 SACCH performance on MUROS and non-MUROS . 49
6.2.1.4.1 Non-MUROS and MUROS Sensitivity Performance. 49
6.2.1.4.2 Non-MUROS and MUROS Interference Performance . 50
6.2.2 Network Level Performance . 54
6.2.2.1 System Setup and Configurations . 54
6.2.2.1.1 Enabled features for system simulations . 55
6.2.2.1.2 Simulated Channel Mode Adaptations . 55
6.2.2.2 Simulation Results . 56
6.2.2.2.1 MUROS-1 with 100% penetration . 56
6.2.2.2.1.1 TU 50km/hr channel model . 56
6.2.2.2.1.2 TU 3km/hr channel model . 57
6.2.2.2.2 MUROS-2 with 100% penetration . 57
6.2.2.2.2.1 TU 50km/hr channel model . 57
6.2.2.2.3 MUROS-3A with 100% penetration . 59
6.2.2.2.3.1 TU 50km/hr channel model . 59
6.2.2.2.3.2 TU 3km/hr channel model . 59
6.2.2.2.4 MUROS-3B with 100% penetration . 60
6.2.2.2.4.1 TU 50km/hr channel model . 60
6.2.2.2.4.2 TU 3km/hr channel model . 61
6.2.2.2.5 MUROS-2 with less than 100% penetration. 61
6.2.2.2.5.1 TU 3km/hr channel model . 61
6.2.2.2.6 Summary . 62
6.2.2.3 Performance Summary . 62
6.2.3 Performance Summary . 63
6.2.4 Verification of Link to System Mapping . 63
6.3 Impacts on the Mobile Station . 63
6.4 Impacts on the BSS . 63
6.4.1 Impact on BTS transmitter . 63
6.4.2 Impact on BTS receiver . 64
6.4.3 Impact on Radio Resource Management . 64
6.5 Impacts on Network Planning . 64
6.6 Impacts on the Specification . 64
6.7 Summary of Evaluation versus Objectives . 65
6.7.1 Performance objectives . 65
6.7.2 Compatibility objectives . 66
6.8 References . 67
7 Orthogonal Sub Channels for Circuit Switched Voice Capacity Evolution . 67
7.1 Concept description . 67
7.1.1 Overview . 67
7.1.2 Downlink concept . 67
7.1.2.1 Basic OSC concept . 67
7.1.2.1.1 Mapping of user bits using QPSK modulation . 67
7.1.2.1.2 Burst structure, training sequence, tail and guard bits . 68
7.1.2.1.3 Tx pulse shaping filter . 69
7.1.2.1.3.1 Investigated Candidate TX Pulse Shapes . 69
7.1.2.1.3.1.1 Candidate Pulse Shape 1 . 69
7.1.2.1.3.1.2 Candidate Pulse Shape 2 . 71
7.1.2.1.3.2 Comparison of Filter Characteristics . 72
7.1.2.1.4 Symbol rotation . 73
7.1.2.1.5 DTX handling when one sub channel is inactive . 73
7.1.2.1.6 FACCH signalling . 73
7.1.2.1.7 SACCH signalling . 73
7.1.2.2 Enhanced OSC concept . 74
ETSI

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3GPP TR 45.914 version 13.0.0 Release 13 5 ETSI TR 145 914 V13.0.0 (2016-01)
7.1.2.2.1 Sub channel specific power control . 74
7.1.2.2.2 Power Balancing . 75
7.1.2.2.3 Soft Stealing for FACCH with sub channel specific power control . 75
7.1.2.2.4 Soft Stealing for SACCH with sub channel specific power control . 76
7.1.2.2.5 User Diversity . 76
7.1.2.2.5.1 Basic User Diversity . 76
7.1.2.2.5.2 Optimized User Diversity . 77
7.1.2.2.5.3 Support of Optimized User Diversity for scenarios with mixed MS types . 78
7.1.2.2.5.4 Benefits of Optimized User Diversity . 84
7.1.3 Uplink concept . 85
7.1.3.1 Modulation and burst structure . 85
7.1.3.2 Usage of new training sequences . 85
7.1.3.3 Tx pulse shape . 85
7.1.3.4 Associated control channels . 85
7.1.3.5 User diversity . 85
7.1.3.6 BTS receiver . 85
7.1.4 RR signalling . 85
7.2 Performance Characterization . 86
7.2.1 Link Level Performance . 86
7.2.1.1 Sensitivity Performance . 86
7.2.1.1.1 Sensitivity in downlink . 86
7.2.1.1.1.1 Sensitivity in downlink without sub channel specific power control . 86
7.2.1.1.1.2 Sensitivity in downlink with subchannel specific power control . 89
7.2.1.1.2 Sensitivity in uplink . 90
7.2.1.2 Interference Performance . 91
7.2.1.2.1 Interference limited performance in downlink . 91
7.2.1.2.1.1 Interference performance in downlink without subchannel specific power control . 91
7.2.1.2.1.1.1 Performance for MUROS Test Scenario 1 . 91
7.2.1.2.1.1.2 Performance for MUROS Test Scenario 2 . 91
7.2.1.2.1.1.3 Performance for Using Optimized TX Pulse Shapes . 93
7.2.1.2.1.2 Interference performance in downlink with subchannel specific power control . 94
7.2.1.3 Results from: MUROS – Performance of Legacy MS . 96
7.2.1.3.1 Simulation Assumptions . 96
7.2.1.3.1.1 Legacy Terminals . 96
7.2.1.3.1.2 Transmitted MUROS Signal . 97
7.2.1.3.1.3 MUROS Interference Models . 97
7.2.1.3.1.4 Other Simulation Parameter . 97
7.2.1.3.2 Downlink Performance Results . 97
7.2.1.3.2.1 Sensitivity Performance . 97
7.2.1.3.2.2 MTS-1 Performance. 98
7.2.1.3.2.3 MTS-2 Performance. 99
7.2.1.3.2.4 MTS-3 Performance. 100
7.2.1.3.2.5 MTS-4 Performance. 101
7.2.1.3.2.6 ACI Performance . 102
7.2.1.3.3 Summary of results . 103
7.2.2 Network Level Performance . 103
7.2.2.1 Network Configurations . 103
7.2.2.2 Performance results . 104
7.2.2.2.1 MUROS-1 . 105
7.2.2.2.2 MUROS-2 . 105
7.2.2.2.3 MUROS-3 . 105
7.2.2.2.4 OSC capacity gains and HW efficiency . 106
7.2.2.2.5 Performance of optimized user diversity . 107
7.2.2.2.6 Performance applying Sub Channel Specific Power Control for OSC . 108
7.2.2.2.7 Performance for Usage of Optimized TX Pulse Shape in Downlink . 109
7.2.2.2.7.1 Setup for System Performance Eva
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