1、 ETSI TS 126 102 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Mandatory speech codec; Adaptive Multi-Rate (AMR) speech codec; Interface to Iu, Uu and Nb (3GPP TS 26.102 version 15.0.0 Release 15) TECHNICAL SPEC
2、IFICATION ETSI ETSI TS 126 102 V15.0.0 (2018-07)13GPP TS 26.102 version 15.0.0 Release 15Reference RTS/TSGS-0426102vf00 Keywords GSM,LTE,UMTS 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 Assoc
3、iation but non 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 prin
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9、istered and owned by the GSM Association. ETSI ETSI TS 126 102 V15.0.0 (2018-07)23GPP TS 26.102 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 thes
10、e 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
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13、 ETSI, and conveys no right to use or reproduce 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 Specification (TS) has been
14、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 referenc
15、e 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 clau
16、se 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 ETSI TS 126 102 V15.0.0 (2018-07)33GPP TS 26.102 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3F
17、oreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 General . 8g35 RAB aspects . 9g36 Iu Interface User Plane (RAN) . 10g36.1 Frame structure on the Iu UP transport protocol 10g36.1.1 Initia
18、lisation 10g36.1.2 Time Alignment Procedure . 11g36.2 Mapping of the bits. 11g36.3 Frame handlers . 12g36.3.1 Handling of frames from TC to Iu interface (downlink) . 13g36.3.1.1 Frame Quality Indicator 13g36.3.1.2 Frame Type . 13g36.3.1.3 Codec Mode Indication . 13g36.3.1.4 Codec Mode Request 13g36.
19、3.1.5 Optional internal 8 bits CRC . 13g36.3.1.6 Mapping of Speech or Comfort Noise parameter bits . 13g36.3.2 Handling of frames from Iu interface to TC (uplink) . 14g36.3.2.1 Frame Quality Indicator 14g36.3.2.2 Frame Type . 14g36.3.2.3 Codec Mode Indication . 14g36.3.2.4 Codec Mode Request 14g36.3
20、.2.5 Optional internal 8 bits CRC . 14g36.3.2.6 Speech and Comfort noise parameter bits . 14g37 Uu Interface User Plane (UE) 14g38 Nb Interface User Plane (CN) of a BICC-based Circuit Switched Core Network . 15g38.1 Frame structure on the Nb UP transport protocol . 15g38.1.1 Initialisation 15g38.1.2
21、 Time Alignment Procedure . 15g38.1.3 SID Frame Generation 15g38.2 Mapping of the bits. 16g38.2.1 Mapping for AMR frames 16g38.2.2 Mapping for PCM Coded Speech . 16g38.2.3 Mapping for GSM_EFR frames 17g38.2.4 Mapping for GSM_FR frames 17g38.2.5 Mapping for GSM_HR frames . 18g38.3 Frame handlers . 19
22、g39 Nb Interface User Plane (CN) of a SIP-I -based Circuit Switched Core Network . 20g39.1 Overview 20g39.1.1 Time Alignment Procedure . 20g39.1.2 SID Frame Generation 20g39.1.3 Initial Codec Mode . 21g39.2 AMR . 21g39.3 AMR-WB . 22g3ETSI ETSI TS 126 102 V15.0.0 (2018-07)43GPP TS 26.102 version 15.0
23、.0 Release 159.4 GSM_EFR 23g39.5 GSM_FR 23g39.6 GSM_HR 23g39.7 PCM . 24g39.8 Telephone-Event 24g310 A-Interface User Plane over IP 24g310.1 Overview 24g310.1.1 Time Alignment Procedure . 25g310.1.2 SID Frame Generation 25g310.1.3 Initial Codec Mode . 25g310.2 AMR . 26g310.3 AMR-WB . 26g310.4 GSM_EFR
24、 27g310.5 GSM_FR 27g310.6 GSM_HR 27g310.7 PCM . 27g3Annex A (informative): Change history . 28g3History 29g3ETSI ETSI TS 126 102 V15.0.0 (2018-07)53GPP TS 26.102 version 15.0.0 Release 15Foreword This Technical Specification (TS) has been produced by the 3rdGeneration Partnership Project (3GPP). The
25、 contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as
26、follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 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, i.e. technical enhancements, corrections, updates,
27、etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 126 102 V15.0.0 (2018-07)63GPP TS 26.102 version 15.0.0 Release 151 Scope The present document specifies the mapping of the AMR generic frame format (3GPP TS 26.101) to the Iu Inter
28、face (3GPP TS 25.415 7), the Uu Interface and the Nb Interface (3GPP TS 29.415). It further specifies the mapping of Enhanced Full Rate (GSM_EFR) coded speech and of PCM 64 kBit/s (ITU-T G.711 9) coded speech to the Nb Interface in a BICC-based circuit switched core network. The present document als
29、o specifies the mapping of Full Rate (GSM_FR) coded speech and of Half Rate (GSM_HR) coded speech to the Nb Interface in a BICC-based circuit switched core network. The present document also specifies the transport of the AMR Codec Types, the AMR-WB Codec Types, the GSM_EFR Codec, the GSM_FR Codec,
30、the GSM_HR Codec and the ITU-T G.711 Codec over the A-Interface over IP (3GPP TS 48.002 11) and the Nb-Interface in a SIP-I -based circuit switched core network (3GPP TS 23.231 12). 2 References The following documents contain provisions which, through reference in this text, constitute provisions o
31、f 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
32、 a 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 TS 25.415: “Iu Interface CN-UTRAN User plane Protocols“. 2 3GPP TS 26.101: “AMR Speech Codec, Frame structure“. 3 3GPP TS
33、 23.107: “QoS Concept and Architecture“. 4 3GPP TS 46.051: “Enhanced Full Rate (EFR) speech processing functions; General Description“ 5 3GPP TS 28.062: “Inband Tandem Free Operation (TFO) of speech codecs; Service description; Stage 3“. 6 3GPP TS 23.153: “Out of band transcoder control, Stage 2“. 7
34、 3GPP TS 29.415: “Core Network Nb Interface User Plane Protocols“. 8 ITU-T I.366.2: “AAL type 2 service specific convergence sublayer for trunking“. 9 ITU-T Recommendation G.711: “Pulse code modulation (PCM) of voice frequencies“. 10 3GPP TS 29.414: “Core Network Nb data transport and transport sign
35、alling“. 11 3GPP TS 48.002: “Base Station System - Mobile-services Switching Centre (BSS - MSC) interface; Interface principles“. 12 3GPP TS 23.231: “SIP-I based circuit-switched core network; Stage 2“. 13 3GPP TS 29.007: “General requirements on interworking between the Public Land Mobile Network (
36、PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN)“. 14 3GPP TS 26.103: “Speech codec list for GSM and UMTS “. 15 IETF RFC 3264 (2002): “An Offer/Answer Model with the Session Description Protocol (SDP)“, J. Rosenberg and H. Schulzrinne. ETSI ETSI TS
37、 126 102 V15.0.0 (2018-07)73GPP TS 26.102 version 15.0.0 Release 1516 IETF RFC 3550 (2003): “RTP: A Transport Protocol for Real-Time Applications“, H. Schulzrinne, S. Casner, R. Frederick and V. Jacobson. 17 IETF RFC 3551 (2003): “RTP Profile for Audio and Video Conferences with Minimal Control“, H.
38、 Schulzrinne and S. Casner. 18 void 19 IETF RFC 4566 (2006): “SDP: Session Description Protocol“, M. Handley, V. Jacobson and C. Perkins. 20 IETF RFC 4733 (2006): “RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals“, H. Schulzrinne and T. Taylor. 21 IETF RFC 4867 (2007): “RTP Payloa
39、d Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs“, J. Sjoberg, M. Westerlund, A. Lakaniemi and Q. Xie. 22 IETF RFC 5993 (2010) “RTP Payload Format for Global System for Mobile Communications Half Rate (GSM-HR)“. 23 3GPP TS 46.0
40、10: “Full rate speech; Transcoding“. 24 3GPP TS 46.020: “Half rate speech; Half rate speech transcoding“. 25 3GPP TS 46.041: “Half rate speech; Discontinuous Transmission (DTX) for half rate speech traffic channels“. 26 3GPP TS 48.060: “In-band control of remote transcoders and rate adaptors for ful
41、l rate traffic channels“. 27 3GPP TS 48.061: “In band control of remote transcoders and rate adaptors for half rate traffic channels“. 28 3GPP TS 46.012: “Full rate speech; Comfort noise aspect for full rate speech traffic channels“. 29 3GPP TS 46.022: “Half rate speech; Comfort noise aspects for ha
42、lf rate speech traffic channels“. 30 3GPP TS 46.062: “Comfort noise aspects for Enhanced Full Rate (EFR) speech traffic channels“. 31 3GPP TS 26.093: “Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation“. 32 3GPP TS 26.193: “Adaptive Multi-Rate - Wideband (AMR-WB) speech codec;
43、Source controlled rate operation“. 33 3GPP TS 48.008: “Mobile Switching Centre - Base Station System (MSC-BSS) interface“. 34 3GPP TS 48.103: “Base Station System Media GateWay (BSS-MGW) interface; User Plane transport mechanism“. 35 3GPP TS 45.009: “Radio Access Network; Link adaptation“ 36 3GPP TS
44、 46.060: “EFR Speech Codec; Speech Transcoding Functions“ 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document the following terms and definitions apply: AMR Generic Frame Interface: this interface transports the AMR IF1 generic frame as defined in 3GPP TS 26.101
45、ETSI ETSI TS 126 102 V15.0.0 (2018-07)83GPP TS 26.102 version 15.0.0 Release 153.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AAL2 ATM Adaptation Layer 2 ACS Active Codec Set AMR Adaptive Multi-Rate AoIP A-Interface user plane transport over RTP/UDP/IP
46、 AS Access Stratum ATM Asynchronous Transfer Mode BFH Bad Frame Handling CDMA Code Division Multiple Access CMI Codec Mode Indication CMR/CMC Codec Mode Request or Codec Mode Command CN Core Network DRC Downlink Rate Command FDD Frequency Duplex Division FQC Frame Quality Classification (Iu Interfac
47、e) FQI Frame Quality Indication (AMR IF1) GSM Global System for Mobile communications ITU-T International Telecommunication Union Telecommunication standardisation sector MGW Media GateWay NboIP Nb-Interface user plane transport over RTP/UDP/IP when SIP-I is used on Nc PCM Pulse Code Modulation, syn
48、onym for 64 kBit/s coded speech (see ITU-T G.711 9) PDC Personal Digital CommunicationPLMN Public Land Mobile Network QoS Quality of Service RAB Radio Access Bearer RAN Radio Access Network RF Radio Frequency RFC RAB sub-flow Combination RFCI RFC IndicatorRFCS RFC Set RX ReceiveSCR Source Controlled
49、 Rate SDU Source Data Unit SID Silence Insertion Descriptor SMpSDU Support Mode for Predefined SDU sizes SPD SPeech Decoder SPE SPeech Encoder TC Transcoder TDD Time Duplex Division TDMA Time Division Multiple Access TFO Tandem Free Operation TrFO Transcoder Free Operation TX Transmit UE User Equipment (terminal) URC Uplink Rate Command 4 General The Iu-Interface is defined in two different variants for speech telephony, a) for the ATM bearer with Iu-framing and b) for the IP bearer with Iu-f
