1、 ETSI TS 126 114 V14.3.0 (2017-04) Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction (3GPP TS 26.114 version 14.3.0 Release 14) floppy3TECHNICAL SPECIFICATION ETSI ETSI TS 126 114 V14.3.0 (2017-04)13GPP TS 26.1
2、14 version 14.3.0 Release 14Reference RTS/TSGS-0426114ve30 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
4、the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the p
5、resent document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comme
6、nt to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. Th
7、e 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 reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are T
8、rade 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. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 126 114 V14.3.0 (2017
9、-04)23GPP TS 26.114 version 14.3.0 Release 14Intellectual Property Rights 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 and non-members, and can be fou
10、nd 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/). Pursuant to the ETSI IPR Po
11、licy, 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 present document. Foreword This Te
12、chnical 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 identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding E
13、TSI 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 “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to
14、 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 used in direct citation. ETSI ETSI TS 126 114 V14.3.0 (2017-04)33GPP TS 26.114 version 14.3.0 Release 14Conten
15、ts Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 15g3Introduction 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
16、 Media codecs 28g35.1 Media components . 28g35.2 Codecs for MTSI clients in terminals . 29g35.2.1 Speech . 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 Offe
17、ring multiple audio bandwidths and multiple channels 30g35.2.1.6 Codec preference order . 30g35.2.2 Video 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 Usi
18、ng SDPCapNeg in SDP offer . 34g36.2.1a.3 Answering to an SDP offer using SDPCapNeg 34g36.2.2 Speech . 34g36.2.2.1 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 Coordinatio
19、n of Video Orientation (CVO) . 48g36.2.3.4 Video Region-of-Interest (ROI) 48g36.2.3.5 RTP Retransmission 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 . 53g36.2.5.3 Video . 55g36.2.6 The Synchronization Info attri
20、bute “3gpp_sync_info“ . 56g36.2.7 Negotiated QoS parameters 57g3ETSI ETSI TS 126 114 V14.3.0 (2017-04)43GPP TS 26.114 version 14.3.0 Release 146.2.7.1 General 57g36.2.7.2 Alignment of negotiated QoS parameters and b=AS bandwidth modifier 57g36.2.7.3 Alignment of negotiated QoS parameters and a=bw-in
21、fo attribute . 58g36.3 Session control procedures . 58g37 Data transport . 59g37.1 General . 59g37.2 RTP profiles . 59g37.3 RTCP usage 59g37.3.1 General 59g37.3.2 Speech . 60g37.3.3 Video 61g37.3.4 Real-time text 62g37.3.5 Void 62g37.3.6 Reduced-Size RTCP . 62g37.3.7 Video Region-of-Interest (ROI) S
22、ignaling . 63g37.4 RTP payload formats for MTSI clients 66g37.4.1 General 66g37.4.2 Speech . 66g37.4.3 Video 67g37.4.4 Real-time text 67g37.4.5 Coordination of Video Orientation . 68g37.4.6 RTP Retransmission . 70g37.4.7 Forward Error Correction (FEC) 70g37.5 Media flow . 70g37.5.1 General 70g37.5.2
23、 Media specific . 70g37.5.2.1 Speech . 70g37.5.2.1.1 General 70g37.5.2.1.2 Default operation . 70g37.5.2.1.2.1 General . 70g37.5.2.1.2.2 Codec Mode Requests 71g37.5.2.1.2.3 Frame aggregation and redundancy . 71g37.5.2.1.3 HSPA . 71g37.5.2.1.4 EGPRS. 72g37.5.2.1.5 GIP 72g37.5.2.1.6 Initial codec mode
24、 for AMR and AMR-WB . 72g37.5.2.1.7 E-UTRAN . 73g37.5.2.1.8 Initial codec mode for EVS . 73g37.5.2.1.9 Dual-mono . 73g37.5.2.2 Video . 73g37.5.2.3 Text . 73g37.5.3 Media synchronization 74g37.5.3.1 General 74g37.5.3.2 Text . 74g37.5.4 ECN usage in RTP sessions 74g37.5.5 Handling of bit-rate variatio
25、ns 74g37.5.5.1 General 74g37.5.5.2 Video . 75g37.5.5.3 Speech . 75g38 Jitter buffer management in MTSI clients in terminals 75g38.1 General . 75g38.2 Speech 75g38.2.1 Terminology . 75g38.2.2 Functional requirements for jitter-buffer management . 77g38.2.3 Minimum performance requirements for jitter-
26、buffer management . 77g38.2.3.1 General 77g38.2.3.2 Objective performance requirements 78g38.2.3.2.1 General 78g38.2.3.2.2 Jitter buffer delay criteria 78g38.2.3.2.3 Jitter induced concealment operations . 79g3ETSI ETSI TS 126 114 V14.3.0 (2017-04)53GPP TS 26.114 version 14.3.0 Release 148.2.3.3 Del
27、ay and error profiles 80g38.2.3.4 Speech material for JBM minimum performance evaluation 80g38.3 Video 80g38.4 Text 80g39 Packet-loss handling . 81g39.1 General . 81g39.2 Speech 81g39.2.1 General 81g39.2.2 Transmitting redundant frames . 81g39.2.3 Receiving redundant frames . 84g39.3 Video 85g39.3.1
28、 General 85g39.3.2 Receiver behaviour . 85g39.3.3 Sender behaviour 85g39.3.4 Recommendations for packet loss recovery mechanisms usage . 86g39.4 Text 87g310 Adaptation 87g310.1 General . 87g310.2 Speech 87g310.2.0 General 87g310.2.1 RTCP-APP with codec control requests . 89g310.2.1.1 General 89g310.
29、2.1.2 General Format of RTCP-APP packet with codec control requests 89g310.2.1.2a Padding . 90g310.2.1.3 Redundancy Request . 90g310.2.1.4 Frame Aggregation Request 91g310.2.1.5 Codec Mode Request 91g310.2.1.6 Generation of RTP payloads for multiple codec control requests . 92g310.2.1.7 EVS Primary
30、Rate Request . 93g310.2.1.8 EVS Bandwidth Request . 94g310.2.1.9 EVS Channel Aware Request . 94g310.2.1.10 EVS Primary mode to EVS AMR-WB IO mode Switching Request . 95g310.2.1.11 EVS AMR-WB IO mode to EVS Primary mode Switching Request . 96g310.2.2 Example use cases 96g310.2.3 SDP negotiation for R
31、TCP-APP . 98g310.3 Video 100g310.3.1 General 100g310.3.2 Signaling mechanisms 100g310.3.3 Adaptation triggers . 101g310.3.4 Sender behavior, downswitching 102g310.3.4.1 Downswitching divided into phases 102g310.3.4.2 Rate reduction phase . 102g310.3.4.3 Delay recovery phase 103g310.3.5 Sender behavi
32、or, up-switching 103g310.3.6 Receiver behavior, down-switching 103g310.3.7 Receiver behavior, up-switch 103g310.3.8 ECN triggered adaptation . 104g310.4 Text 105g310.5 Explicit Congestion Notification 105g310.6 Using the a=bw-info attribute for adaptation . 105g311 Front-end handling . 106g311.1 Gen
33、eral . 106g312 Inter-working 107g312.1 General . 107g312.2 3G-324M 107g312.2.1 General 107g312.2.2 Codec usage 107g312.2.2.1 General 107g312.2.2.2 Text . 107g3ETSI ETSI TS 126 114 V14.3.0 (2017-04)63GPP TS 26.114 version 14.3.0 Release 1412.2.3 Payload format 107g312.2.4 MTSI media gateway trans-pac
34、ketization . 107g312.2.4.1 General 107g312.2.4.2 Speech de-jitter buffer . 107g312.2.4.3 Video bitrate equalization . 108g312.2.4.4 Data loss detection 108g312.2.4.5 Data integrity indication 108g312.2.4.6 Packet size considerations . 108g312.2.4.6.0 General 108g312.2.4.6.1 The Maximum Receive SDU S
35、ize attribute “3gpp_MaxRecvSDUSize” 109g312.2.4.7 Setting RTP timestamps 109g312.2.4.8 Protocol termination 109g312.2.4.9 Media synchronization 109g312.2.5 Session control 110g312.3 GERAN/UTRAN CS inter-working . 110g312.3.0 3G-324M 110g312.3.1 Codecs for MTSI media gateways 110g312.3.1.1 Speech int
36、erworking between 3GPP PS access and CS GERAN/UTRAN. 110g312.3.1.1a Speech inter-working between fixed access and CS GERAN/UTRAN 111g312.3.1.2 Text . 111g312.3.2 RTP payload formats for MTSI media gateways 112g312.3.2.1 Speech . 112g312.3.2.2 Text . 113g312.3.3 Explicit Congestion Notification 113g3
37、12.3.4 Codec switching procedures with SRVCC . 113g312.4 PSTN 114g312.4.1 3G-324M 114g312.4.2 Text . 114g312.5 GIP inter-working. 114g312.5.1 Text . 114g312.5.2 Speech . 114g312.6 Void 115g312.6.1 Void 115g312.6.2 Void 115g312.7 Inter-working with other IMS and non-IMS IP networks 115g312.7.1 Genera
38、l 115g312.7.2 Speech . 115g312.7.2.1 General 115g312.7.2.2 Speech codecs and formats . 115g312.7.2.2.1 MTSI MGW for interworking between MTSI client in terminal using 3GPP access and other IMS or non-IMS IP networks 115g312.7.2.2.2 MTSI MGW for interworking between MTSI client in terminal using fixe
39、d access and other IMS or non-IMS IP networks 116g312.7.2.2.3 Common procedures 116g312.7.2.3 Codec preference order for session negotiation 116g312.7.2.4 RTP profiles 117g312.7.2.5 RTP payload formats. 117g312.7.2.6 Packetization . 117g312.7.2.7 RTCP usage and adaptation 118g312.7.2.8 RTP usage . 1
40、18g312.7.2.9 Session setup and session modification. 119g312.7.2.10 Audio level alignment . 119g312.7.3 Explicit Congestion Notification 119g312.7.4 Text . 120g312.7.5 Inter-working IPv4 and IPv6 networks . 120g313 Void 120g313a Media types, codecs and formats used for MSRP transport . 120g313a.1 Ge
41、neral . 120g313a.2 Difference relative to 3GPP TS 26.141 120g313a.2.1 Video 120g3ETSI ETSI TS 126 114 V14.3.0 (2017-04)73GPP TS 26.114 version 14.3.0 Release 1414 Supplementary services 121g314.1 General . 121g314.2 Media formats and transport . 121g314.3 Media handling in hold procedures 121g315 Ne
42、twork preference management object 121g315.1 General . 121g315.2 Nodes Definition 122g315.3 Example Configuration of 3GPP MTSINP MO . 134g316 Quality of Experience . 136g316.1 General . 136g316.2 Metrics Definition 136g316.2.1 Corruption duration metric . 136g316.2.2 Successive loss of RTP packets 1
43、37g316.2.3 Frame rate . 137g316.2.4 Jitter duration 138g316.2.5 Sync loss duration . 138g316.2.6 Round-trip time . 138g316.2.7 Average codec bitrate . 139g316.2.8 Codec information 139g316.3 Metric Configuration 139g316.3.1 QoE metrics reporting management object . 140g316.3.2 QoE metric reporting c
44、onfiguration 143g316.3.3 QoE reporting rule definition 144g316.4 Metrics Reporting . 145g316.4.1 XML schema for QoE report message 146g316.4.2 Example XML for QoE report message . 147g317 Management of Media Adaptation . 148g317.1 General . 148g317.2 Media adaptation management object 148g317.3 Mana
45、gement procedures . 171g317.3.1 Management of speech adaptation 171g317.3.2 Management of video adaptation 173g318 MTSI client in terminal using fixed access 175g318.1 General . 175g318.2 Media codecs 175g318.2.1 General 175g318.2.2 Speech . 175g318.2.2.1 Speech codecs . 175g318.2.2.2 Error concealm
46、ent procedures . 176g318.2.2.3 Source controlled rate operation . 176g318.2.3 Video 176g318.2.4 Real-time text 177g318.3 Media configuration . 177g318.3.1 General 177g318.3.2 Session setup procedures 177g318.3.2.1 General 177g318.3.2.2 Speech . 177g318.3.2.3 Video . 178g318.3.2.4 Text . 178g318.3.2.
47、5 Bandwidth negotiation 178g318.3.3 Session control procedures . 178g318.4 Data transport . 179g318.4.1 General 179g318.4.2 Packetization . 179g318.4.3 RTP payload format 179g318.5 Jitter buffer management 180g318.6 Packet-loss handling . 180g318.7 Adaptation 180g318.8 Front-end handling . 180g3ETSI
48、 ETSI TS 126 114 V14.3.0 (2017-04)83GPP TS 26.114 version 14.3.0 Release 1418.9 Supplementary services 180g319 Additional bandwidth information . 181g319.1 General . 181g319.2 Bandwidth properties . 181g319.2.1 General description . 181g319.2.2 Maximum Supported Bandwidth 182g319.2.3 Maximum Desired
49、 Bandwidth 182g319.2.4 Minimum Desired Bandwidth. 183g319.2.5 Minimum Supported Bandwidth. 183g319.2.6 IP version 183g319.2.7 Maximum Packet Rate 184g319.2.8 Minimum Packet Rate 184g319.3 SDP attribute 184g319.3.1 Definition 184g319.3.2 SDP grammar 185g319.3.3 Declarative use 186g319.3.4 Usage in offer/answer . 186g319.4 Modifications of the bandwidth information by intermediate network nodes 187g3Annex A (informative): Examples of SDP offers and answers . 189g3A.1 SDP offers for speech sessions initiated by MTSI client in terminal . 189g3A.1.1 HSPA or unknown access technolo
