ETSI GSM 03 50-1996 Digital Cellular Telecommunications System (Phase 2+) Transmission Planning Aspects of the Speech Service in the GSM Public Land Mobile Network (PLMN) System (V_1.pdf
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1、- ETSI GSM*O3.50 b = 3400855 0138907 263 -1 L Ar GSM 03.50 September 1996 Version 5.0.0 Source: ETSI TC-SMG _ Reference: TS/SMG-O20350Q ICs: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital
2、cellular telecommunications system (Phase 2+); Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (GSM 03.50) ETSI European Telecommunications Standards Institute ETSI Secretariat Postai address: F-O6921 Sophia Antipolis CEDEX - FRANCE Off ice add
3、ress: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariatetsi.fr Tel.: +33 4 92 94 42 O0 - Fax: +33 4 93 65 47 16 _ _ Copyright Notification: No part may be reproduced except as authorized by written permission. The copyri
4、ght and the foregoing restriction extend to reproduction in all media. 0 European Telecommunications Standards Institute 1996. All rights reserved. ETSI GSM*03-50 96 = 3400855 CIL38908 LTT Page 2 GSM 03.50 Version 5.0.0: September 1996 Whilst every care has been taken in the preparation and publicat
5、ion of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title page. ETSI . 9b 3400855 OL3B909 O36 Page 3 GSM 03.50 Version 5.0.0: September 199
6、6 Contents Foreword . 7 1 Scope 9 1.1 Normative references 9 1.2 Definitions and abbreviations . 11 1.3 Introduction 12 2 Network configurations 12 2.1 General 12 2.2 Model of the PLMN 12 2.3 Interfaces . 12 2.4 Configurations of Connections . 13 2.4.1 General Configurations of Connections 13 2.4.2
7、Reference configurations to illustrate delay and echo control issues 13 4-wire circuits in the PLMN 14 2.5 3 Transmission performance . 14 3.1 Overall LosdLoudness ratings 15 3.1.1 Connections with handset MSs . 15 3.1.2 Connections with handsfree MSs 16 3.1.3 Connections with headset MSs . 16 Ctabi
8、litv Loss 16 3.2 3.3 Delay 17 3.3.1 General 17 3.3.2 Sources of delay 17 3.3.2.1 Elements of the PLMN that cause delay 17 3.3.2.2 Elements of the PSTN that cause delay 17 Effects of delay 17 Allocation of delay to the PLMN 18 3.3.4.1 Allocation of delay to the PLMN when using a full rate system . 18
9、 3.3.4.2 Allocation of delay to the PLMN when using a half rate system . 18 Delay of various network configurations 18 3.3.5.1 National and international connections with no echo control in the PSTN (reference configurations A) 18 3.3.5.2 National and intemational connections with echo control in th
10、e PSTN (reference configurations 8) 18 3.3.5.3 Connections where re-routeing leads to a significant increase in transmission path length (reference configurations C) . 19 Delay related requirements on the MS 19 3.3.6.1 Full rate MS . 19 3.3.6.2 Half rate MS . 19 3.3.6.3 Handsfree MS 19 3.4 Echo . 19
11、 3.4.1 General 19 3.4.2 Electrical echo control in the PLMN (Reference configurations A) . 20 3.4.3 Acoustic echo control in the PLMN . 20 3.4.3.1 Acoustic echo control in a handsfree MS 20 3.4.3.2 Acoustic echo control in a handset MS . 20 3.4.3.3 Acoustic echo control in a headset MS . 20 Interact
12、ion between tandem echo control devices (reference configurations B Abbreviations and acronyms“. GSM 03.04 (ETS 300 524): “Digital cellular telecommunication system (Phase 2); Signalling requirements relating to routeing of calls to mobile subscribers“. GSM 06.01 (ETS 300 580-1): “Digital cellular t
13、elecommunication system; Full rate speech processing functions“. GSM 06.1 O (ETS 300 580-2): “Digital cellular telecommunication system; Full rate speech transcoding“. GSM 06.1 1 (ETS 300 580-3): “Digital cellular telecommunication system; Substitution and muting of lost frames for full rate speech
14、channels“. GSM 06.1 2 (ETS 300 580-4): “Digital cellular telecommunication system; Comfort noise aspect for full rate speech traffic channels“. GSM 06.31 (ETS 300 580-5): “Digital cellular telecommunication system; Discontinuous Transmission (DTX) for full rate speech traffic channel“. GSM 06.32 (ET
15、S 300 580-6): “Digital cellular telecommunication system; Voice Activity Detection (VAD)“. GSM 06.02 (ETS 300 581 -1): “Digital cellular telecommunication system; Half rate speech processing functions“. GSM 06.20 (ETS 300 581 -2): “Digital cellular telecommunication system; Half rate speech transcod
16、ing“. GSM 06.21 (ETS 300 581 -3): “Digital cellular telecommunication system; Substitution and muting of lost frames for half rate speech traffic channels“. GSM 06.22 (ETS 300 581 -4): “Digital cellular telecommunication system; Comfort noise aspects for half rate speech traffic channels“. GSM 06.41
17、 (ETS 300 581 -5): “Digital cellular telecommunication system; Discontinuous Transmission (DTX) for half rate speech traffic channels“. GSM 06.42 (ETS 300 581 -6): “Digital cellular telecommunication system; Voice Activity Detection (VAD) for half rate speech traffic channels“. - ETSI GSM*O3.50 Yb m
18、 3400855 OL387Lb 27b Page 10 GSM 03.50 Version 5.0.0: September 1996 11 51 I-ETC 300 245-2: “Integrated Services Digital Network (ISDN): Technical characteristics of telephony terminals: Part 2: PCM A-Law handset telephony“. 11 61 ITU-T Recommendation G.103 (1 998): “Hypothetical reference connectio
19、ns“ 11 71 ITU-T Recommendation G.111 (1993): “Loudness ratings (LRs) in an international connections“. i81 ITU-T Recommendation G.113 (1 993): “Transmission impairments“. 11 91 ITU-T Recommendation G.114 (1 993): “Mean one-way propagation time“. ITU-T Recommendation G.121 (1 993): “Loudness ratings
20、(LRs) of national systems“. ITU-T Recommendation G.122 (1 993): “Influence of national systems on stability, talker echo, and listener echo in intemational connections“. 1221 ITU-T Recommendation G. 131 (1 988): “Stability and echo“. i231 ITU-T Recommendation G.165 (1 993): “Echo cancellers“. 1241 I
21、TU-T Recommendation G.223 (1 988): “Assumptions for the calculation of noise on hypothetical reference circuits for telephony“. 1251 ITU-T Recommendation G.703 (1 991): “Physical/electricaI characteristics of hierarchical digital interfaces“. ITU-T Recommendation G.711 (1988): “Pulse code modulation
22、 (PCM) of voice frequencies“. ITU-T Recommendation G.712 (1 992): “Transmission performance characteristics of pulse code modulation“. 281 ITU-T Recommendation G.167 (1 993): “Acoustic Echo Controllers“ ITU-T Recommendation M.1020 (1 993): “Characteristics of special quality intemational leased circ
23、uits with special bandwidth conditions“. ITU-T Recommendation M.1025 (1 993): “Characteristics of special quality international leased circuits with basic bandwidth conditioning“. i31 1 ITU-T Recommendation M.1030 (1 988): “Characteristics of ordinary quality international leased circuits forming pa
24、rt of private switched telephone networks“. 1321 ITU-T Recommendations M.1040 (1 988): “Characteristics of ordinary quality international leased circuits“. ITU-T Recommendation 0.1 32 (1 988), “Specification for a quantizing distortion measuring apparatus using a sinusoidal test signal“. i341 ITU-T
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