1、 ETSI TS 143 050 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (3GPP TS 43.050 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNIC
2、ATIONSRETSI ETSI TS 143 050 V14.0.0 (2017-04)13GPP TS 43.050 version 14.0.0 Release 14Reference RTS/TSGS-0443050ve00 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 n
3、on lucratif enregistre la Sous-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 o
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7、xcept as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All rights reserve
8、d. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members GSM and
9、 the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 143 050 V14.0.0 (2017-04)23GPP TS 43.050 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information perta
10、ining 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 Secreta
11、riat. 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
12、the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identiti
13、es, 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 “
14、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 u
15、sed in direct citation. ETSI ETSI TS 143 050 V14.0.0 (2017-04)33GPP TS 43.050 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g31.1 References 7g31.2 Abbreviations . 9g31.3 Introduction 9g32 Network configurations 10g3
16、2.1 General . 10g32.2 Model of the PLMN . 10g32.3 Interfaces 10g32.4 Configurations of connections 11g32.4.1 General configurations of connections . 11g32.4.2 Reference configurations to illustrate delay and echo control issues 11g32.5 4-wire circuits in the PLMN . 11g33 Transmission performance . 1
17、2g33.1 Overall Loss/Loudness ratings . 13g33.1.1 Connections with handset MSs . 13g33.1.2 Connections with handsfree MSs 13g33.1.3 Connections with headset MSs . 13g33.2 Stability Loss 13g33.3 Delay 14g33.3.1 General 14g33.3.2 Sources of delay 14g33.3.2.1 Elements of the PLMN that cause delay . 14g3
18、3.3.2.2 Elements of the PSTN that cause delay . 14g33.3.3 Effects of delay . 14g33.3.4 Allocation of delay to the PLMN 15g33.3.4.1 Allocation of delay to the PLMN when using a full rate system 15g33.3.4.2 Allocation of delay to the PLMN when using a half rate system 15g33.3.5 Delay of various networ
19、k configurations 15g33.3.5.1 National and international connections with no echo control in the PSTN (reference configurations A) 15g33.3.5.2 National and international connections with echo control in the PSTN (reference configurations B). 15g33.3.5.3 Connections where re-routeing leads to a signif
20、icant increase in transmission path length (reference configurations C) 15g33.3.6 Delay related requirements on the MS 16g33.3.6.1 Full rate MS 16g33.3.6.2 Half rate MS 16g33.3.6.3 Handsfree MS . 16g33.4 Echo 16g33.4.1 General 16g33.4.2 Electrical echo control in the PLMN (Reference configurations A
21、) . 17g33.4.3 Acoustic echo control in the PLMN . 17g33.4.4 Interaction between tandem echo control devices (reference configurations B 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance,
22、i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 143 050 V14.0.0 (2017-04)73GPP TS 43.050 version 14.0.0 Release 141 Scope The present document describes the transmission planning
23、 aspects pertaining to the speech service in the GSM PLMN system. Due to technical and economic factors, there cannot be full compliance with the general characteristics of international telephone connections and circuits recommended by the ITU-T. The present document gives guidance as to the precau
24、tions, measures and minimum requirements needed for successful interworking of the PLMN with the national and international PSTN. The present document identifies a number of routeing and network configurations. The objective is to reach a quality as close as possible to ITU-T standards in order to s
25、afeguard the performance seen by PSTN customers. The requirements stated for acoustics in dual mode GSM/3GPP handsets shall be interpreted as requirement on acoustics in the GSM mode. 1.1 References The following documents contain provisions which, through reference in this text, constitute provisio
26、ns of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a
27、 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 41.004: “Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. 2 3GPP TS 43.004: “Digital
28、cellular telecommunications system (Phase 2+); Signalling requirements relating to routeing of calls to mobile subscribers“. 3 3GPP TS 46.001: “Digital cellular telecommunications system (Phase 2+); Full rate speech processing functions“. 4 3GPP TS 46.010: “Digital cellular telecommunications system
29、 (Phase 2+); Full rate speech; Transcoding“. 5 3GPP TS 46.011: “Digital cellular telecommunications system (Phase 2+); Full rate speech; Substitution and muting of lost frames for full rate speech channels“. 6 3GPP TS 46.012: “Digital cellular telecommunications system (Phase 2+); Full rate speech;
30、Comfort noise aspect for full rate speech traffic channels“. 7 3GPP TS 46.031: “Digital cellular telecommunications system (Phase 2+); Full rate speech; Discontinuous Transmission (DTX) for full rate speech traffic channels“. 8 3GPP TS 46.032: “Digital cellular telecommunications system (Phase 2+);
31、Voice Activity Detection (VAD)“. 9 3GPP TS 46.002: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech processing functions“. 10 3GPP TS 46.020: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech transcoding“. 11 3GPP TS
32、46.021: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Substitution and muting of lost frames for half rate speech traffic channels“. 12 3GPP TS 46.022: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Comfort noise aspects for half rate speech tra
33、ffic channels“. ETSI ETSI TS 143 050 V14.0.0 (2017-04)83GPP TS 43.050 version 14.0.0 Release 1413 3GPP TS 46.041: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Discontinuous Transmission (DTX) for half rate speech traffic channels“. 14 3GPP TS 46.042: “Digital cellular te
34、lecommunications system (Phase 2+); Half rate speech; Voice Activity Detection (VAD) for half rate speech traffic channels“. 15 I-ETS 300 245-2: “Integrated Services Digital Network (ISDN): Technical characteristics of telephony terminals: Part 2: PCM A-Law handset telephony“. 16 ITU-T Recommendatio
35、n G.103 (1998): “Hypothetical reference connections“. 17 ITU-T Recommendation G.111 (1993): “Loudness ratings (LRs) in an international connection“. 18 ITU-T Recommendation G.113 (1996): “Transmission impairments“. 19 ITU-T Recommendation G.114 (2000): “Mean one-way propagation time“. 20 ITU-T Recom
36、mendation G.121 (1993): “Loudness ratings (LRs) of national systems“. 21 ITU-T Recommendation G.122 (1993): “Influence of national systems on stability, talker echo, and listener echo in international connections“. 22 ITU-T Recommendation G.131 (1996): “Control of talker echo“. 23 ITU-T Recommendati
37、on G.168 (2000): “Digital network echo cancellers“. 24 ITU-T Recommendation G.223 (1988): “Assumptions for the calculation of noise on hypothetical reference circuits for telephony“. 25 ITU-T Recommendation G.703 (1998): “Physical/electrical characteristics of hierarchical digital interfaces“. 26 IT
38、U-T Recommendation G.711 (1988): “Pulse code modulation (PCM) of voice frequencies“. 27 ITU-T Recommendation G.712 (1996): “Transmission performance characteristics of pulse code modulation“. 28 ITU-T Recommendation G.167 (1993): “Acoustic Echo Controllers“. 29 ITU-T Recommendation M.1020 (1993): “C
39、haracteristics of special quality international leased circuits with special bandwidth conditions“. 30 ITU-T Recommendation M.1025 (1993): “Characteristics of special quality international leased circuits with basic bandwidth conditioning“. 31 ITU-T Recommendation M.1030 (1988): “Characteristics of
40、ordinary quality international leased circuits forming part of private switched telephone networks“. 32 ITU-T Recommendations M.1040 (1988): “Characteristics of ordinary quality international leased circuits“. 33 ITU-T Recommendation O.132 (1988): “Specification for a quantizing distortion measuring
41、 apparatus using a sinusoidal test signal“. 34 ITU-T Recommendation P.11 (1993): “Effect of transmission impairments“. 35 ITU-T Recommendation P.340(2000): “Transmission characteristics of hands-free telephones“. 36 ITU-T Recommendation P.38 (1993): “Transmission characteristics of operator telephon
42、e systems (OTS)“. 37 ITU-T Recommendation P.50 (1999): “Artificial voices“. 38 ITU-T Recommendation P.51 (1996): “Artificial mouths“. 39 ITU-T Recommendation P.64 (1999): “Determination of sensitivity/frequency characteristics of local telephone systems“. ETSI ETSI TS 143 050 V14.0.0 (2017-04)93GPP
43、TS 43.050 version 14.0.0 Release 1440 ITU-T Recommendation P.76 (1988): “Determination of loudness ratings; fundamental principles“. 41 ITU-T Recommendation P.79 (1999): “Calculation of loudness ratings“. 42 ITU-T Recommendation Q.35/E180 (1998): “Technical characteristics of tones for the telephone
44、 service“. 43 ITU-T Recommendation Q.551 (1996): “Transmission characteristics of digital exchanges“. 44 ITU-T Blue Book (1988): “Volume V, Supplement 13: Noise spectra“. 45 ISO 3 (1973): “Preferred numbers series of preferred numbers“. 46 ITU-T Recommendation P.57 (1996): “Artificial Ears“. 47 ITU-
45、T Recommendation P.58 (1996): “Head and Torso Simulator for Telephonometry“. 48 I-ETS 300 245-3: “Integrated Services Digital Network (ISDN): Technical characteristics of telephony terminal: Part 3: PCM A-law loudspeaking and handsfree telephony“. 49 3GPP TS 26.131: “Terminal Acoustic Characteristic
46、s for Telephony; Requirements” 50 3GPP TS 26.132: “Speech and video telephony terminal acoustic test specification” 51 3GPP TS 51.010: “Digital cellular telecommunications system (Phase 2+); Mobile Station (MS) conformance specification“ 1.2 Abbreviations In addition to those below, the abbreviation
47、s used in the present document are listed in GSM 01.04. ADC Analogue to Digital Converter ADPCM Adaptive Differential Pulse Code Modulation AEC Acoustic Echo Control BSC Base Station Controller (excluding transmission systems BTS Base Transceiver Station (excluding transmission systems) DAC Digital
48、to Analogue Converter DMR Digital Mobile Radio DSI Digital Speech Interpolation EEC Electric Echo Control EL Echo Loss ERP Ear Reference Point FDM Frequency Division Multiplex ISC International Switching LE Local Exchange LSTR Listener Sidetone Rating MRP Mouth Reference Point OLR Overall Loudness R
49、ating PCM Pulse Code Modulation POI Point of Interconnection (with PSTN) RLR Receiver Loudness Rating SLR Send Loudness Rating STMR Sidetone Masking RatingUPCMI 13-bit Uniform PCM Interface 1.3 Introduction Since the transmission quality and the conversational quality of the PLMN will in general be lower than the quality of the PSTN connection due to coding distortion, delay, etc., only some transmission aspects can be brought in line with ETSI ETSI TS 143 050 V14.0.0
