1、 ETSI TS 1Universal Mobile TelCodec for EnhInterfac(3GPP TS 26.4TECHNICAL SPECIFICATION126 454 V13.0.0 (2016elecommunications System (LTE; n anced Voice Services (EVS)ace to Iu, Uu, Nb and Mb .454 version 13.0.0 Release 1316-05) (UMTS); S); 13) ETSI ETSI TS 126 454 V13.0.0 (2016-05)13GPP TS 26.454 v
2、ersion 13.0.0 Release 13Reference DTS/TSGS-0426454vd00 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 (06) N
3、 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 the
4、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 prese
5、nt 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 http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of t
6、he 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. The content of t
7、he 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 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of
8、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 126 454 V13.0.0 (2016-05)23GPP TS 2
9、6.454 version 13.0.0 Release 13Intellectual 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 found in ETSI SR
10、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 Policy, no inves
11、tigation, 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 Technical Specif
12、ication (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 ETSI deliverabl
13、es. 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 be interprete
14、d 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 126 454 V13.0.0 (2016-05)33GPP TS 26.454 version 13.0.0 Release 13Contents Intellectua
15、l Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 General . 8g35 RAB aspects . 10g36 Iu Interface User Plane (RAN-CN) 11g36.1 Frame structure on the Iu UP transport p
16、rotocol 11g36.1.1 General 11g36.1.2 Initialisation 11g36.1.3 Time Alignment Procedure . 11g36.2 Mapping of the bits. 11g36.3 Frame handlers . 14g36.3.0 General 14g36.3.1 Handling of frames from TC to Iu interface (downlink) . 14g36.3.1.0 General 14g36.3.1.1 Frame Quality Classification . 14g36.3.1.2
17、 Frame size . 14g36.3.1.3 Codec Mode Indication . 15g36.3.1.4 EVS Codec Mode Request and Rate Control Command in downlink 15g36.3.1.5 Optional internal 8 bits CRC . 15g36.3.1.6 Mapping of Speech or SID bits . 15g36.3.2 Handling of frames from Iu interface to TC (uplink) . 15g36.3.2.0 General 15g36.3
18、.2.1 Frame Quality Classification . 15g36.3.2.2 Frame Type . 15g36.3.2.3 Codec Mode Indication . 15g36.3.2.4 EVS Codec Mode Request and Rate Control Procedure . 16g36.3.2.5 Optional internal 8 bits CRC . 17g36.3.2.6 Speech and SID bits 18g37 Uu Interface User Plane (UE-RAN) . 18g37.1 General . 18g37
19、.2 Determination of the local EVS encoding mode 19g37.3 Generation of UL EVS-CMR for the remote media-sender . 20g37.4 Interworking in case of the EVS Channel Aware Mode 20g38 Nb Interface User Plane (CN-CN) of a BICC-based CS Core Network (NbF) 20g38.0 General . 20g38.1 Frame structure on the Nb UP
20、 transport protocol . 21g38.1.0 General 21g38.1.1 Initialisation 21g38.1.2 Time Alignment Procedure . 21g38.1.3 SID Frame Generation 21g38.1.4 Rate and Mode Control and CMR-Only frames . 21g38.2 Mapping of the EVS bits 21g38.2.1 Mapping for EVS Speech and SID frames . 21g3ETSI ETSI TS 126 454 V13.0.
21、0 (2016-05)43GPP TS 26.454 version 13.0.0 Release 138.2.2 Mapping for EVS-CMR 21g38.3 Frame handlers . 21g39 Nb Interface User Plane (CN-CN) of a SIP-I-based CS Core Network (NboIP) 22g39.1 General . 22g39.2 Frame Structure 22g39.2.0 General 22g39.2.1 Initialisation 22g39.2.2 Time Alignment Procedur
22、e . 22g39.2.3 SID Frame Generation 22g39.2.4 Rate and Mode Control and CMR-Only frames . 22g39.3 RTP Packing for EVS on Nb for SIP-I . 22g310 Mb Interface User Plane . 23g311 Interworking between MGW Terminations . 23g311.1 Interworking between different EVS Configurations . 23g311.1.0 General 23g31
23、1.1.1 Interworking between EVS Bottom Up Configurations . 23g311.1.2 Interworking between single audio band Configurations . 24g311.1.3 Interworking between bottom up and single band 24g311.2 Handling of Speech and SID payload. 25g311.2.1 Handling of Speech and SID payload during the call . 25g311.2
24、.2 Handling of Speech and SID payload at call setup . 25g311.3 Filtering and Modification of EVS-CMR by the MGW . 25g311.3.0 General 25g311.3.1 Maximum Mode Control for EVS in general . 25g311.3.2 Maximum Mode Control for the EVS Channel Aware mode . 26g311.3.3 Maximum Mode Control for the EVS Varia
25、ble Bit Rate mode 26g311.3.4 Maximum Mode Control for Handover 26g311.4 Interworking between CS-internal interfaces and Mb 26g311.4.0 General 26g311.4.1 Interworking for EVS Rate Control 26g311.4.2 Interworking for Discontinuous Transmission 26g311.5 Interworking between EVS and AMR-WB 27g311.6 Inte
26、rworking for the EVS Channel Aware Mode . 27g311.6.1 Introduction. 27g311.6.2 Removal of Jitter in direction PS to CS 28g311.6.3 Removal of Jitter in direction CS to PS 29g3Annex A (informative): Change history . 30g3History 31g3ETSI ETSI TS 126 454 V13.0.0 (2016-05)53GPP TS 26.454 version 13.0.0 Re
27、lease 13Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The 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
28、, it will be re-released by the TSG with an identifying change of release date and an increase in version number as 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.
29、 y the second digit is incremented for all changes of substance, 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 126 454 V13.0.0 (2016-05)63GPP TS 26.454 version 13.0.0 Release 1
30、31 Scope The Enhanced Voice Services (EVS) Codec is specified in Technical Specifications 3GPP TS 26.441 11 to TS 26.451 19. The generic frame format for 3G CS networks is specified in TS 26.453 19. The allowed EVS Configurations of the UMTS_EVS Codec Type are specified in TS 26.103 20. The present
31、document specifies the mapping of the EVS generic frame format (3GPP TS 26.453 19) to the Iu Interface (3GPP TS 25.415 4) and the Uu Interface, including handling of the EVS-CMR by the UE and the Iu-terminating MGW. The present document specifies also the mapping to the Nb Interface in a BICC-based
32、circuit switched core network. (3GPP TS 29.415 7) and the Nb-Interface in a SIP-I-based circuit switched core network (3GPP TS 23.231 3). The present document specifies also the interworking of different EVS Configurations on the terminations of the MGW and the interworking between EVS and AMR-WB on
33、 the terminations of the MGW. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. - Fo
34、r 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 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as th
35、e present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TR 41.001: “GSM Specification set“. 3 3GPP TS 23.231: “SIP-I based circuit-switched core network; Stage 2“. 4 3GPP TS 25.415: “Iu Interface CN-UTRAN User plane Protocols“. 5 3GPP TS 29.163: “Interworking between the I
36、P Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks“ 6 3GPP TS 29.414: “Core network Nb data transport and transport signalling“. 7 3GPP TS 29.415: “Core Network Nb Interface User Plane Protocols“. 8 IETF RFC 3550 (2003): “RTP: A Transport Protocol for Real-Time Applicat
37、ions“, H. Schulzrinne, S. Casner, R. Frederick and V. Jacobson. 9 IETF RFC 4733 (2006): “RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals“, H. Schulzrinne and T. Taylor. 10 3GPP TS 25.133: “Requirements for support of radio resource management (FDD)“. 11 3GPP TS 26.441: “Codec for
38、 Enhanced Voice Services (EVS); General overview“. 12 3GPP TS 26.445: “Codec for Enhanced Voice Services (EVS); Detailed algorithmic description“. 13 3GPP TS 26.446: “Codec for Enhanced Voice Services (EVS); Adaptive Multi-Rate - Wideband (AMR-WB) backward compatible functions“. 14 3GPP TS 26.447: “
39、Codec for Enhanced Voice Services (EVS); Error concealment of lost packets“. ETSI ETSI TS 126 454 V13.0.0 (2016-05)73GPP TS 26.454 version 13.0.0 Release 1315 3GPP TS 26.448: “Codec for Enhanced Voice Services (EVS); Jitter buffer management“. 16 3GPP TS 26.449: “Codec for Enhanced Voice Services (E
40、VS); Comfort Noise Generation (CNG) aspects“. 17 3GPP TS 26.450: “Codec for Enhanced Voice Services (EVS); Discontinuous Transmission (DTX)“. 18 3GPP TS 26.451: “Codec for Enhanced Voice Services (EVS); Voice Activity Detection (VAD)“. 19 3GPP TS 26.453: “Codec for Enhanced Voice Services (EVS); Spe
41、ech codec frame structure“. 20 3GPP TS 26.103: “Speech codec list for GSM and UMTS“. 21 3GPP TS 26.114: “IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and defin
42、itions given in 3GPP TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 1. active EVS-CMR: EVS-CMR containing the requested (maximum) bit rate, (maximum) audio bandwidth and the major operation
43、mode. DL EVS-CMR: the most recent successfully in downlink (DL) received codec mode request, relevant for encoding at the local UE. EVS Configuration for Iu: The MSC selects the EVS configuration for Iu and informs the MGW and the RNC in RAB Assignment. EVS Configuration for Uu: The RNC selects the
44、EVS configuration for Uu. EVS Configuration for UE: The UE deducts the EVS configuration for UE from the Radio Bearer Configuration, i.e. the Set of TFCs. EVS Configuration for Nb: The MSC selects the EVS configuration for Nb and informs the MGW. major operation mode: This is either an EVS Primary m
45、ode of operation or an EVS AMR-WB IO mode of operation. Set of available rates: Rates of the EVS Configuration for UE, constrained further by RNC allowed TFCs and further constrained by the UE autonomous rate. UE autonomous rate: Maximum bit rate set by UE transport layer to optimize uplink performa
46、nce (frame loss rate) if the TX power limit is reached. UL EVS-CMR: EVS-CMR sent by the UE in uplink (UL); relevant for encoding at the remote media-sender (e.g. remote UE or remote CN Transcoder), requesting the (maximum) codec mode to be used on the local DL to the UE. 3.2 Abbreviations For the pu
47、rposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 1. BICC Bearer Independent Call Control CN Core Network CMR Co
48、dec Mode Request (for AMR and AMR-WB, often also used for EVS) ETSI ETSI TS 126 454 V13.0.0 (2016-05)83GPP TS 26.454 version 13.0.0 Release 13DL Downlink EVS Enhanced Voice Services EVS-CMR Codec Mode Request for EVS (here explicitly used to differentiate) EVS-SID SID for EVS (here explicitly used t
49、o differentiate) FQC Frame Quality Classification (Iu and Nb Interfaces) IM-MGW IP Multimedia Media Gateway Function Nb Interconnection point between two MGWs of the CS Core Network Nc Interconnection point between two MSCs of the CS Core Network NO_REQ No Requirement (is present) Mb Interconnection point between the MGW of the CS Core Network and the IMS NboIP Nb-Interface user plane transport over RTP/UDP/IP when SIP-I is used on Nc RC Ack Rate Control Procedure Acknowledgement (on Iu) RC Proc Rate Control Pr
