ETSI TR 145 914-2018 Digital cellular telecommunications system (Phase 2+) (GSM) Circuit switched voice capacity evolution for GSM EDGE Radio Access Network (GERAN) (V15 0 0 3GPP T.pdf

1、 ETSI TR 145 914 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Circuit switched voice capacity evolution for GSM/EDGE Radio Access Network (GERAN) (3GPP TR 45.914 version 15.0.0 Release 15) TECHNICAL REPORT GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TR 145 914

2、 V15.0.0 (2018-07)13GPP TR 45.914 version 15.0.0 Release 15Reference RTR/TSGR-0645914vf00 Keywords GSM ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la S

3、ous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shal

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9、n. ETSI ETSI TR 145 914 V15.0.0 (2018-07)23GPP TR 45.914 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly a

10、vailable 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 s

11、erver (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 be

12、come, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or r

13、eproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Pr

14、oject (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

15、can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “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 o

16、f provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 145 914 V15.0.0 (2018-07)33GPP TR 45.914 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 12g3Introduction

17、12g31 Scope 14g32 References 14g33 Definitions, symbols and abbreviations . 14g33.1 Definitions 14g33.2 Symbols 15g33.3 Abbreviations . 15g34 Objectives . 16g34.1 Performance Objectives . 16g34.1.1 Capacity Improvements at the BTS 16g34.1.2 Capacity Improvements at the Air Interface . 16g34.2 Compat

18、ibility Objectives 16g34.2.1 Maintainance of Voice Quality . 17g34.2.2 Support of Legacy Mobile Stations 17g34.2.3 Implementation Impacts to new Mobile Stations 17g34.2.4 Implementation Impacts to BSS . 17g34.2.5 Impacts to Network Planning 17g35 Common Working Assumptions for Candidates Evaluation

19、. 17g35.1 General parameters . 17g35.2 Definition of Model for External Interferers for Link Level Evaluations 19g35.2.1 Synchronous Network Mode 19g35.2.2 Asynchronous Network Mode 20g35.2.2.1 Interferer delay profiles . 21g35.2.3 Sensitivity limited scenarios 21g35.2.4 Frequency Offsets . 21g35.2.

20、5 Uplink Interferer Profiles 21g35.3 Network Configurations . 22g35.4 Channel Mode Adaptation 23g35.5 System Performance Evaluation Method . 23g35.5.1 Definition of Effective Frequency Load for Mixed Frequency Reuse 24g35.6 Definition of Minimum Call Quality Performance 25g35.7 Link-to-System Mappin

21、g . 25g35.8 Impairments of the Mobile Station . 26g35.8.1 Subchannel power imbalance ratio on DL 26g35.8.2 Frequency Offset Impairment Model in UL . 26g35.9 Reference BTS Receiver 26g36 Speech Capacity Enhancement using DARP . 26g36.1 Concept Description . 26g36.1.1 Principle 26g36.1.2 Downlink sign

22、al modulation schemes 27g36.1.2.1 Equal power level between two desired users . 28g36.1.2.2 Spectrum analysis . 30g36.1.2.3 Different power levels between two desired users 30g36.1.3 Power control in co-TCH MUROS operation . 31g36.1.4 BTS changes for co-TCH MUROS operation 31g36.1.5 Adaptive pulse s

23、happing for MUROS modulation . 33g36.2 Performance Characterization 37g36.2.1 Link Level Performance . 37g3ETSI ETSI TR 145 914 V15.0.0 (2018-07)43GPP TR 45.914 version 15.0.0 Release 156.2.1.1 Sensitivity performance 37g36.2.1.2 Interference performance 39g36.2.1.2.1 MTS-1 configuration . 39g36.2.1

24、.2.2 MTS-2 configuration . 40g36.2.1.2.3 MTS-3 configuration . 41g36.2.1.2.4 MTS-4 configuration . 42g36.2.1.3 Link level performance with power imbalance . 43g36.2.1.4 SACCH performance on MUROS and non-MUROS . 48g36.2.1.4.1 Non-MUROS and MUROS Sensitivity Performance 48g36.2.1.4.2 Non-MUROS and MU

25、ROS Interference Performance . 49g36.2.2 Network Level Performance . 53g36.2.2.1 System Setup and Configurations . 53g36.2.2.1.1 Enabled features for system simulations . 53g36.2.2.1.2 Simulated Channel Mode Adaptations 54g36.2.2.2 Simulation Results 55g36.2.2.2.1 MUROS-1 with 100% penetration 55g36

26、.2.2.2.1.1 TU 50km/hr channel model . 55g36.2.2.2.1.2 TU 3km/hr channel model . 56g36.2.2.2.2 MUROS-2 with 100% penetration 56g36.2.2.2.2.1 TU 50km/hr channel model . 56g36.2.2.2.3 MUROS-3A with 100% penetration . 58g36.2.2.2.3.1 TU 50km/hr channel model . 58g36.2.2.2.3.2 TU 3km/hr channel model . 5

27、8g36.2.2.2.4 MUROS-3B with 100% penetration 59g36.2.2.2.4.1 TU 50km/hr channel model . 59g36.2.2.2.4.2 TU 3km/hr channel model . 60g36.2.2.2.5 MUROS-2 with less than 100% penetration 60g36.2.2.2.5.1 TU 3km/hr channel model . 60g36.2.2.2.6 Summary . 61g36.2.2.3 Performance Summary 61g36.2.3 Performan

28、ce Summary . 62g36.2.4 Verification of Link to System Mapping 62g36.3 Impacts on the Mobile Station 62g36.4 Impacts on the BSS 62g36.4.1 Impact on BTS transmitter 62g36.4.2 Impact on BTS receiver 63g36.4.3 Impact on Radio Resource Management 63g36.5 Impacts on Network Planning 63g36.6 Impacts on the

29、 Specification 63g36.7 Summary of Evaluation versus Objectives . 64g36.7.1 Performance objectives . 64g36.7.2 Compatibility objectives . 65g36.8 References 66g37 Orthogonal Sub Channels for Circuit Switched Voice Capacity Evolution . 66g37.1 Concept description 66g37.1.1 Overview 66g37.1.2 Downlink

30、concept . 66g37.1.2.1 Basic OSC concept 66g37.1.2.1.1 Mapping of user bits using QPSK modulation 66g37.1.2.1.2 Burst structure, training sequence, tail and guard bits . 67g37.1.2.1.3 Tx pulse shaping filter . 68g37.1.2.1.3.1 Investigated Candidate TX Pulse Shapes . 68g37.1.2.1.3.1.1 Candidate Pulse

31、Shape 1 68g37.1.2.1.3.1.2 Candidate Pulse Shape 2 70g37.1.2.1.3.2 Comparison of Filter Characteristics 71g37.1.2.1.4 Symbol rotation . 72g37.1.2.1.5 DTX handling when one sub channel is inactive 72g37.1.2.1.6 FACCH signalling . 72g37.1.2.1.7 SACCH signalling. 72g37.1.2.2 Enhanced OSC concept . 73g37

32、.1.2.2.1 Sub channel specific power control . 73g3ETSI ETSI TR 145 914 V15.0.0 (2018-07)53GPP TR 45.914 version 15.0.0 Release 157.1.2.2.2 Power Balancing 74g37.1.2.2.3 Soft Stealing for FACCH with sub channel specific power control 74g37.1.2.2.4 Soft Stealing for SACCH with sub channel specific pow

33、er control 74g37.1.2.2.5 User Diversity 75g37.1.2.2.5.1 Basic User Diversity 75g37.1.2.2.5.2 Optimized User Diversity 76g37.1.2.2.5.3 Support of Optimized User Diversity for scenarios with mixed MS types 77g37.1.2.2.5.4 Benefits of Optimized User Diversity 83g37.1.3 Uplink concept 84g37.1.3.1 Modula

34、tion and burst structure . 84g37.1.3.2 Usage of new training sequences 84g37.1.3.3 Tx pulse shape . 84g37.1.3.4 Associated control channels 84g37.1.3.5 User diversity 84g37.1.3.6 BTS receiver . 84g37.1.4 RR signalling 84g37.2 Performance Characterization 85g37.2.1 Link Level Performance . 85g37.2.1.

35、1 Sensitivity Performance 85g37.2.1.1.1 Sensitivity in downlink 85g37.2.1.1.1.1 Sensitivity in downlink without sub channel specific power control . 85g37.2.1.1.1.2 Sensitivity in downlink with subchannel specific power control . 88g37.2.1.1.2 Sensitivity in uplink . 89g37.2.1.2 Interference Perform

36、ance 90g37.2.1.2.1 Interference limited performance in downlink 90g37.2.1.2.1.1 Interference performance in downlink without subchannel specific power control 90g37.2.1.2.1.1.1 Performance for MUROS Test Scenario 1 . 90g37.2.1.2.1.1.2 Performance for MUROS Test Scenario 2 . 90g37.2.1.2.1.1.3 Perform

37、ance for Using Optimized TX Pulse Shapes . 92g37.2.1.2.1.2 Interference performance in downlink with subchannel specific power control 92g37.2.1.3 Results from: MUROS Performance of Legacy MS 94g37.2.1.3.1 Simulation Assumptions 95g37.2.1.3.1.1 Legacy Terminals 95g37.2.1.3.1.2 Transmitted MUROS Sign

38、al 95g37.2.1.3.1.3 MUROS Interference Models 95g37.2.1.3.1.4 Other Simulation Parameter . 95g37.2.1.3.2 Downlink Performance Results . 95g37.2.1.3.2.1 Sensitivity Performance . 95g37.2.1.3.2.2 MTS-1 Performance. 96g37.2.1.3.2.3 MTS-2 Performance. 97g37.2.1.3.2.4 MTS-3 Performance. 98g37.2.1.3.2.5 MT

39、S-4 Performance. 99g37.2.1.3.2.6 ACI Performance . 100g37.2.1.3.3 Summary of results 101g37.2.2 Network Level Performance . 101g37.2.2.1 Network Configurations 101g37.2.2.2 Performance results . 102g37.2.2.2.1 MUROS-1 . 102g37.2.2.2.2 MUROS-2 . 103g37.2.2.2.3 MUROS-3 . 103g37.2.2.2.4 OSC capacity ga

40、ins and HW efficiency 104g37.2.2.2.5 Performance of optimized user diversity . 105g37.2.2.2.6 Performance applying Sub Channel Specific Power Control for OSC 106g37.2.2.2.7 Performance for Usage of Optimized TX Pulse Shape in Downlink 107g37.2.2.2.7.1 Setup for System Performance Evaluation 107g37.2

41、.2.2.7.1.1 Network configurations 107g37.2.2.2.7.1.2 Channel mode adaptation . 107g37.2.2.2.7.1.3 Link to system interface . 107g37.2.2.2.7.2 System Performance Results 107g37.2.2.2.7.2.1 MUROS-1 107g37.2.2.2.7.2.2 MUROS-2 109g37.2.2.2.7.3 Performance Comparison . 111g3ETSI ETSI TR 145 914 V15.0.0 (

42、2018-07)63GPP TR 45.914 version 15.0.0 Release 157.2.2.2.7.3.1 Introduction 111g37.2.2.2.7.3.2 Comparison 111g37.2.2.2.7.3.3 Interference analysis . 112g37.2.3 Performance Summary . 113g37.2.4 Modelling methodology for a VAMOS and legacy mobile receiver 113g37.2.4.1 Introduction . 113g37.2.4.2 L2S M

43、odelling Methodology 113g37.2.4.3 Initial Interference Profile . 114g37.2.4.4 ACP factors 115g37.2.4.4.1 Introduction . 115g37.2.4.4.2 RawBER ACP factors for VAMOS I receiver . 115g37.2.4.4.3 RawBER ACP factors for Legacy Non-DARP receiver 116g37.2.4.5 Final Interference Profile 117g37.2.5 Verificat

44、ion of Link to System Mapping 119g37.2.5.1 Introduction . 119g37.2.5.2 Link To System Interface For Vamos-I Receiver . 119g37.2.5.3 Mappings For The Vamos-I Receiver . 119g37.2.5.3.1 MUROS-1 . 120g37.2.5.3.1.1 50 % VAMOS-I mobile penetration 120g37.2.5.3.1.2 75 % VAMOS-I mobile penetration 121g37.2.

45、5.3.1.3 100 % VAMOS-I mobile penetration 122g37.2.5.3.2 MUROS-2 . 124g37.2.5.3.2.1 50 % VAMOS-I mobile penetration 124g37.2.5.3.2.2 75 % VAMOS-I mobile penetration 125g37.2.5.3.2.3 100 % VAMOS-I mobile penetration 126g37.2.5.3 Mappings For The Legacy Non-Darp Receiver 128g37.3 Impacts on the Mobile

46、Station 129g37.4 Impacts on the BSS 129g37.4.1 BTS Transmitter . 129g37.4.2 BTS Receiver 129g37.4.3 Radio Resource Management (RRM) . 129g37.4.3.1 Power Control . 130g37.4.3.2 Dynamic Channel Allocation (DCA) 130g37.4.3.3 AMR Channel Rate and Codec Mode Adaptation 130g37.5 Impacts on Network Plannin

47、g 130g37.5.1 Impacts to Abis interface 130g37.5.1.1 Impact of OSC on Abis allocation strategy . 130g37.5.1.2 Impact of OSC on bandwidth consumption 131g37.5.1.3 Abis migration paths . 131g37.5.2 Impacts on Frequency Planning 131g37.6 Impacts on the Specifications . 132g37.7 Summary of Evaluation ver

48、sus Objectives . 132g37.7.1 Performance objectives . 132g37.7.2 Compatibility objectives . 134g37.8 References 135g38 Adaptive symbol constellation . 137g38.1 Concept Description . 137g38.1.1 Symbol Constellation for the Downlink . 137g38.1.2 -QPSK Modulator 138g38.1.3 Choice of Symbol Constellation

49、 . 139g38.1.4 Adaptive Constellation Rotation . 139g38.1.5 Frequency hopping . 141g38.1.5.1 Legacy support 144g38.1.5.2 Additional signaling 144g38.1.6 SAM - Single Antenna MIMO - for VAMOS 144g38.1.6.1 Concept description . 144g38.1.6.1.1 Computational Complexity 146g38.2 Performance Characterization 146g38.2.1 Link Level Performance . 146g38.2.1.1 Simulation assumptions 147g38.2.1.2 Sensitivity Performance 148g3ETSI ETSI TR 145 914 V15.0.0 (2018-07)73GPP TR 45.914 version 15.0.0 Release 158.2.1.2.1 SAIC receiver 148g38.2.1.2.1.1 Support of legacy mobiles . 150g38.2