1、 ETSI TS 126 114 V14.6.0 (2018-01) Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction (3GPP TS 26.114 version 14.6.0 Release 14) floppy3TECHNICAL SPECIFICATION ETSI ETSI TS 126 114 V14.6.0 (2018-01)13GPP TS 26.1
2、14 version 14.6.0 Release 14Reference RTS/TSGS-0426114ve60 Keywords 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 Association but non lucratif enregistre la Sous-Prfecture de Grasse (0
3、6) 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 shall not be modified without
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9、4.6.0 (2018-01)23GPP TS 26.114 version 14.6.0 Release 14Intellectual Property Rights Essential patents 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 an
10、d 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/)
11、. 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 prese
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13、r 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 produced by ETSI 3rd Generation Partnership Project (3GPP). The pre
14、sent 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 ht
15、tp:/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
16、of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 114 V14.6.0 (2018-01)33GPP TS 26.114 version 14.6.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 15g3Introduction
17、 15g31 Scope 16g32 References 16g33 Definitions and abbreviations . 23g33.1 Definitions 23g33.2 Abbreviations . 24g34 System description . 26g34.1 System 26g34.2 Client 26g34.3 MRFP and MGW . 28g35 Media codecs 28g35.1 Media components . 28g35.2 Codecs for MTSI clients in terminals . 29g35.2.1 Speec
18、h . 29g35.2.1.1 General codec requirements 29g35.2.1.2 Detailed codec requirements, AMR 29g35.2.1.3 Detailed codec requirements, AMR-WB 29g35.2.1.4 Detailed codec requirements, EVS 30g35.2.1.5 Offering multiple audio bandwidths and multiple channels 30g35.2.1.6 Codec preference order . 30g35.2.2 Vid
19、eo 30g35.2.3 Real-time text 32g36 Media configuration . 32g36.1 General . 32g36.2 Session setup procedures 33g36.2.1 General 33g36.2.1a RTP profile negotiation 33g36.2.1a.1 General 33g36.2.1a.2 Using SDPCapNeg in SDP offer . 34g36.2.1a.3 Answering to an SDP offer using SDPCapNeg 34g36.2.2 Speech . 3
20、4g36.2.2.1 General 34g36.2.2.2 Generating SDP offers 35g36.2.2.3 Generating SDP answer 38g36.2.3 Video 46g36.2.3.1 Introduction . 46g36.2.3.2 Common Session Setup Procedures 47g36.2.3.3 Coordination of Video Orientation (CVO) . 48g36.2.3.4 Video Region-of-Interest (ROI) 48g36.2.3.5 RTP Retransmissio
21、n 51g36.2.3.6 Forward Error Correction (FEC) . 51g36.2.4 Text . 51g36.2.5 Bandwidth negotiation 52g36.2.5.1 General 52g36.2.5.2 Speech . 54g36.2.5.3 Video . 56g36.2.6 The Synchronization Info attribute “3gpp_sync_info“ . 57g36.2.7 Negotiated QoS parameters 58g3ETSI ETSI TS 126 114 V14.6.0 (2018-01)4
22、3GPP TS 26.114 version 14.6.0 Release 146.2.7.1 General 58g36.2.7.2 Alignment of negotiated QoS parameters and b=AS bandwidth modifier 58g36.2.7.3 Alignment of negotiated QoS parameters and a=bw-info attribute . 59g36.3 Session control procedures . 59g37 Data transport . 60g37.1 General . 60g37.2 RT
23、P profiles . 60g37.3 RTCP usage 60g37.3.1 General 60g37.3.2 Speech . 61g37.3.3 Video 62g37.3.4 Real-time text 63g37.3.5 Void 63g37.3.6 Reduced-Size RTCP . 63g37.3.7 Video Region-of-Interest (ROI) Signaling . 64g37.4 RTP payload formats for MTSI clients 67g37.4.1 General 67g37.4.2 Speech . 67g37.4.3
24、Video 68g37.4.4 Real-time text 68g37.4.5 Coordination of Video Orientation . 69g37.4.6 RTP Retransmission . 71g37.4.7 Forward Error Correction (FEC) 71g37.5 Media flow . 71g37.5.1 General 71g37.5.2 Media specific . 71g37.5.2.1 Speech . 71g37.5.2.1.1 General 71g37.5.2.1.2 Default operation . 71g37.5.
25、2.1.2.1 General . 71g37.5.2.1.2.2 Codec Mode Requests 72g37.5.2.1.2.3 Frame aggregation and redundancy . 72g37.5.2.1.3 HSPA . 72g37.5.2.1.4 EGPRS. 73g37.5.2.1.5 GIP 73g37.5.2.1.6 Initial codec mode for AMR and AMR-WB . 73g37.5.2.1.7 E-UTRAN . 74g37.5.2.1.8 Initial codec mode for EVS . 74g37.5.2.1.9
26、Dual-mono . 74g37.5.2.2 Video . 74g37.5.2.3 Text . 74g37.5.3 Media synchronization 75g37.5.3.1 General 75g37.5.3.2 Text . 75g37.5.4 ECN usage in RTP sessions 75g37.5.5 Handling of bit-rate variations 75g37.5.5.1 General 75g37.5.5.2 Video . 76g37.5.5.3 Speech . 76g38 Jitter buffer management in MTSI
27、clients in terminals 76g38.1 General . 76g38.2 Speech 76g38.2.1 Terminology . 76g38.2.2 Functional requirements for jitter-buffer management . 78g38.2.3 Minimum performance requirements for jitter-buffer management . 78g38.2.3.1 General 78g38.2.3.2 Objective performance requirements 79g38.2.3.2.1 Ge
28、neral 79g38.2.3.2.2 Jitter buffer delay criteria 79g38.2.3.2.3 Jitter induced concealment operations . 80g3ETSI ETSI TS 126 114 V14.6.0 (2018-01)53GPP TS 26.114 version 14.6.0 Release 148.2.3.3 Delay and error profiles 81g38.2.3.4 Speech material for JBM minimum performance evaluation 81g38.3 Video
29、81g38.4 Text 81g39 Packet-loss handling . 82g39.1 General . 82g39.2 Speech 82g39.2.1 General 82g39.2.2 Transmitting redundant frames . 82g39.2.3 Receiving redundant frames . 85g39.3 Video 86g39.3.1 General 86g39.3.2 Receiver behaviour . 86g39.3.3 Sender behaviour 86g39.3.4 Recommendations for packet
30、 loss recovery mechanisms usage . 87g39.4 Text 88g310 Adaptation 88g310.1 General . 88g310.2 Speech 88g310.2.0 General 88g310.2.1 RTCP-APP with codec control requests . 90g310.2.1.1 General 90g310.2.1.2 General Format of RTCP-APP packet with codec control requests 90g310.2.1.2a Padding . 91g310.2.1.
31、3 Redundancy Request . 91g310.2.1.4 Frame Aggregation Request 92g310.2.1.5 Codec Mode Request 92g310.2.1.6 Generation of RTP payloads for multiple codec control requests . 93g310.2.1.7 EVS Primary Rate Request . 94g310.2.1.8 EVS Bandwidth Request . 95g310.2.1.9 EVS Channel Aware Request . 95g310.2.1
32、.10 EVS Primary mode to EVS AMR-WB IO mode Switching Request . 96g310.2.1.11 EVS AMR-WB IO mode to EVS Primary mode Switching Request . 97g310.2.2 Example use cases 97g310.2.3 SDP negotiation for RTCP-APP . 99g310.3 Video 101g310.3.1 General 101g310.3.2 Signaling mechanisms 101g310.3.3 Adaptation tr
33、iggers . 102g310.3.4 Sender behavior, downswitching 103g310.3.4.1 Downswitching divided into phases 103g310.3.4.2 Rate reduction phase . 103g310.3.4.3 Delay recovery phase 104g310.3.5 Sender behavior, up-switching 104g310.3.6 Receiver behavior, down-switching 104g310.3.7 Receiver behavior, up-switch
34、 104g310.3.8 ECN triggered adaptation . 105g310.4 Text 106g310.5 Explicit Congestion Notification 106g310.6 Using the a=bw-info attribute for adaptation . 106g310.7 Access network bitrate recommendation 107g310.7.1 General 107g310.7.2 Relation to session signaling bitrate information 107g310.7.3 Use
35、 with dynamic bitrate adaptation . 108g310.7.3.1 General 108g310.7.3.2 Adaptation of sent media 108g310.7.3.3 Adaptation of received media . 111g310.7.4 Message mapping for LTE access 111g311 Front-end handling . 112g311.1 General . 112g3ETSI ETSI TS 126 114 V14.6.0 (2018-01)63GPP TS 26.114 version
36、14.6.0 Release 1412 Inter-working 113g312.1 General . 113g312.2 3G-324M 113g312.2.1 General 113g312.2.2 Codec usage 113g312.2.2.1 General 113g312.2.2.2 Text . 113g312.2.3 Payload format 113g312.2.4 MTSI media gateway trans-packetization . 113g312.2.4.1 General 113g312.2.4.2 Speech de-jitter buffer .
37、 113g312.2.4.3 Video bitrate equalization . 114g312.2.4.4 Data loss detection 114g312.2.4.5 Data integrity indication 114g312.2.4.6 Packet size considerations . 114g312.2.4.6.0 General 114g312.2.4.6.1 The Maximum Receive SDU Size attribute “3gpp_MaxRecvSDUSize” 115g312.2.4.7 Setting RTP timestamps 1
38、15g312.2.4.8 Protocol termination 115g312.2.4.9 Media synchronization 115g312.2.5 Session control 116g312.3 GERAN/UTRAN CS inter-working . 116g312.3.0 3G-324M 116g312.3.1 Codecs for MTSI media gateways 116g312.3.1.1 Speech interworking between 3GPP PS access and CS GERAN/UTRAN. 116g312.3.1.1a Speech
39、 inter-working between fixed access and CS GERAN/UTRAN 117g312.3.1.2 Text . 117g312.3.2 RTP payload formats for MTSI media gateways 118g312.3.2.1 Speech . 118g312.3.2.2 Text . 119g312.3.3 Explicit Congestion Notification 119g312.3.4 Codec switching procedures with SRVCC . 119g312.4 PSTN 120g312.4.1
40、3G-324M 120g312.4.2 Text . 120g312.5 GIP inter-working. 120g312.5.1 Text . 120g312.5.2 Speech . 120g312.6 Void 121g312.6.1 Void 121g312.6.2 Void 121g312.7 Inter-working with other IMS and non-IMS IP networks 121g312.7.1 General 121g312.7.2 Speech . 121g312.7.2.1 General 121g312.7.2.2 Speech codecs a
41、nd formats . 121g312.7.2.2.1 MTSI MGW for interworking between MTSI client in terminal using 3GPP access and other IMS or non-IMS IP networks 121g312.7.2.2.2 MTSI MGW for interworking between MTSI client in terminal using fixed access and other IMS or non-IMS IP networks 122g312.7.2.2.3 Common proce
42、dures 122g312.7.2.3 Codec preference order for session negotiation 122g312.7.2.4 RTP profiles 123g312.7.2.5 RTP payload formats. 123g312.7.2.6 Packetization . 123g312.7.2.7 RTCP usage and adaptation 124g312.7.2.8 RTP usage . 124g312.7.2.9 Session setup and session modification. 125g312.7.2.10 Audio
43、level alignment . 125g312.7.3 Explicit Congestion Notification 125g312.7.4 Text . 126g312.7.5 Inter-working IPv4 and IPv6 networks . 126g3ETSI ETSI TS 126 114 V14.6.0 (2018-01)73GPP TS 26.114 version 14.6.0 Release 1413 Void 126g313a Media types, codecs and formats used for MSRP transport . 126g313a
44、.1 General . 126g313a.2 Difference relative to 3GPP TS 26.141 126g313a.2.1 Video 126g314 Supplementary services 127g314.1 General . 127g314.2 Media formats and transport . 127g314.3 Media handling in hold procedures 127g315 Network preference management object 127g315.1 General . 127g315.2 Nodes Def
45、inition 128g315.3 Example Configuration of 3GPP MTSINP MO . 140g316 Quality of Experience . 142g316.1 General . 142g316.2 Metrics Definition 142g316.2.1 Corruption duration metric . 142g316.2.2 Successive loss of RTP packets 143g316.2.3 Frame rate . 143g316.2.4 Jitter duration 144g316.2.5 Sync loss
46、duration . 144g316.2.6 Round-trip time . 144g316.2.7 Average codec bitrate . 145g316.2.8 Codec information 145g316.3 Metric Configuration 145g316.3.1 QoE metrics reporting management object . 146g316.3.2 QoE metric reporting configuration 149g316.3.3 QoE reporting rule definition 150g316.4 Metrics R
47、eporting . 151g316.4.1 XML schema for QoE report message 152g316.4.2 Example XML for QoE report message . 153g317 Management of Media Adaptation . 154g317.1 General . 154g317.2 Media adaptation management object 154g317.3 Management procedures . 177g317.3.1 Management of speech adaptation 177g317.3.
48、2 Management of video adaptation 179g318 MTSI client in terminal using fixed access 181g318.1 General . 181g318.2 Media codecs 181g318.2.1 General 181g318.2.2 Speech . 181g318.2.2.1 Speech codecs . 181g318.2.2.2 Error concealment procedures . 182g318.2.2.3 Source controlled rate operation . 182g318.
49、2.3 Video 182g318.2.4 Real-time text 183g318.3 Media configuration . 183g318.3.1 General 183g318.3.2 Session setup procedures 183g318.3.2.1 General 183g318.3.2.2 Speech . 183g318.3.2.3 Video . 184g318.3.2.4 Text . 184g318.3.2.5 Bandwidth negotiation 184g318.3.3 Session control procedures . 184g318.4 Data transport . 185g318.4.1 General 185g3ETSI ETSI TS 126 114 V14.6.0 (2018-01)83GPP TS 26.114 version 14.6.0 Release 1418.4.2 Packetization . 185g318.4.3 RTP payload format 185g318.5 Jitter buffer management 186g318.6 Packet-loss handling . 186g318.7 Adaptation 186g318.8 Front-e
