1、 ETSI TS 126 111 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Codec for circuit switched multimedia telephony service; Modifications to H.324 (3GPP TS 26.111 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL
2、 SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 126 111 V14.0.0 (2017-04)13GPP TS 26.111 version 14.0.0 Release 14Reference RTS/TSGS-0426111ve00 Keywords GSM,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 348 623 562 000
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9、Marks registered and owned by the GSM Association. ETSI ETSI TS 126 111 V14.0.0 (2017-04)23GPP TS 26.111 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 pertaining to these essential
10、 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 updates are
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12、ch 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 identities, UMTS identities or G
13、SM 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 “shall“, “shall not“, “sh
14、ould“, “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 used in direct citation.
15、ETSI ETSI TS 126 111 V14.0.0 (2017-04)33GPP TS 26.111 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 6g34 G
16、eneral . 6g35 Document structure 6g36 Functional requirements . 7g36.1 Required elements 7g36.2 Information streams 7g36.3 Modem . 7g36.4 Multiplex 7g36.5 Control channel 7g36.6 Video channels . 7g36.6.1 MPEG-4 interface to multiplex . 10g36.6.2 H.264 (MPEG-4 AVC) interface to multiplex 10g36.7 Audi
17、o channels . 11g36.8 Data channels . 11g37 Terminal procedures . 11g38 Optional enhancements 11g39 Interoperation with other terminals 11g310 Multipoint considerations . 11g311 Maintenance . 12g3Annex A (informative): Change History 13g3History 14g3ETSI ETSI TS 126 111 V14.0.0 (2017-04)43GPP TS 26.1
18、11 version 14.0.0 Release 14Foreword This Technical Specification (TS) 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 content
19、s 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 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 docum
20、ent under change control. 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. Introduction In the present document is described add
21、itions, deletions, and changes made to ITU-T Recommendation H.324 10 with annex C for the purpose of using that recommendation as a basis for the technical specification for circuit switched multimedia service in 3GPP networks. The present document does not address call setup procedures, but referen
22、ces to the specifications which cover call setup are found in 3GPP TS 26.110 11. ETSI ETSI TS 126 111 V14.0.0 (2017-04)53GPP TS 26.111 version 14.0.0 Release 141 Scope In ITU-T Recommendation H.324 10 with annex C describes a generic multimedia codec for use in error-prone, wireless networks. The sc
23、ope of the present document are the changes, deletions, and additions to those texts necessary to fully specify a multimedia codec for use in 3GPP networks. Note that this implicitly excludes the network interface and call setup procedures. Also excluded are any general introductions to the system c
24、omponents. 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. For a specific reference,
25、 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 the present document. 1 ITU
26、-T Recommendation H.223: “Multiplexing protocol for low bit rate multimedia communication“. 2 ITU-T Recommendation H.223 - Annex A: “Multiplexing protocol for low bit rate multimedia mobile communication over low error-prone channels“. 3 ITU-T Recommendation H.223 - Annex B: “Multiplexing protocol f
27、or low bit rate multimedia mobile communication over moderate error-prone channels“. 4 ITU-T Recommendation H.223 - Annex C: “Multiplexing protocol for low bit rate multimedia mobile communication over highly error-prone channels“. 5 ITU-T Recommendation H.223 - Annex D: “Optional multiplexing proto
28、col for low bit rate multimedia mobile communication over highly error-prone channels“. 6 ITU-T Recommendation H.245: “Control protocol for multimedia communication“. 7 ITU-T Recommendation G.723.1: “Dual rate speech coder for multimedia communication transmitting at 5,3 and 6,3 kbit/s“. 8 ITU-T Rec
29、ommendation H.263: “Video coding for low bitrate communication“. 9 ITU-T Recommendation H.261: “Video CODEC for audiovisual services at px64 kbit/s“. 10 ITU-T Recommendation H.324: “Terminal for low bitrate multimedia communication“. 11 3GPP TS 26.110: “Codec for Circuit Switched Multimedia Telephon
30、y Service; General description“. 12 3GPP TR 26.911: “Codec for circuit switched multimedia telephony service; terminal implementors Guide (Release 4)“. 13 ITU-T Recommendation X.691: “Information Technology - ASN.1 Encoding Rules - Specification of Packed Encoding Rules (PER)“. 14 ISO/IEC 14496-2: “
31、Information technology - Coding of audio-visual objects - Part 2: Visual“. 15 3GPP TS 26.071: “General description“. 16 3GPP TS 26.090: “Transcoding functions“. 17 3GPP TS 26.073: “Adaptive Multi-Rate (AMR); ANSI C source code“. ETSI ETSI TS 126 111 V14.0.0 (2017-04)63GPP TS 26.111 version 14.0.0 Re
32、lease 1418 3GPP TS 26.171: “AMR Wideband Speech codec; General Description“. 19 ITU-T Recommendation H.264 (2003): “Advanced video coding for generic audiovisual services“ | ISO/IEC 14496-10:2003: “Information technology Coding of audio-visual objects Part 10: Advanced Video Coding“. 20 ITU-T Recomm
33、endation H.241 (2003): “Extended video procedures and control signals for H.300 series terminals“. 21 ITU-T Recommendation G.722.2 Annex F (2002): “AMR-WB usage in H.245“. 22 3GPP TS 26.201 : “Adaptive Multi-Rate Wideband (AMR-WB) speech codec ; Frame Structure.“ 3 Definitions and abbreviations 3.1
34、Definitions For the purposes of the present document, the following terms and definitions apply: H.324: ITU-T H.324 10 with annex C 3G-324M terminal: based on ITU-T H.324 10 recommendation modified by 3GPP for purposes of 3GPP circuit switched network based video telephony 3.2 Abbreviations For the
35、purposes of the present document, the following abbreviations apply: AMR Adaptive Multi-Rate AMR-WB AMR Wide-Band AVC Advanced Video Codec FLC Fixed Length Code RVLC Reverse Variable Length Code DP Data PartitioningRM Resynchronization Marker MCU Multipoint Control Unit 4 General The present documen
36、t contains any deviations to ITU-T H.324 10 required for the specification of 3G-324M Terminals. 5 Document structure The structure of H.324 10 is followed in the present document. Where there are no differences in a specific section, that section is skipped. Where differences are minor, only the di
37、fferences are described. Where major differences exist, the section is rewritten in the present document. It is important to note that for wireless terminals, Annex C of H.324 10 supersedes respective portions of the main body of H.324 10 For the present document, these modifications are treated as
38、if they are part of the main body of H.324 10 Therefore, a reader must keep in mind both the main body and Annex C of H.324 10 when reading the present document. ETSI ETSI TS 126 111 V14.0.0 (2017-04)73GPP TS 26.111 version 14.0.0 Release 146 Functional requirements 6.1 Required elements 3G-324M imp
39、lementations are not required to have each functional element except a wireless interface, H.223 1 with Annex A and B multiplex, and H.245 6 version 3 or later versions for system control protocol. 3G-324M terminals offering audio communication shall support the AMR audio codec. Support for G.723.1
40、7 is not mandatory, but recommended. 3G-324M terminals offering video communication shall support the H.263 8 video codec. Support for MPEG-4 simple profile and H.261 9 is optional. 3G-324M terminals shall support H.223 1 with annex A and annex B. 3G-324M terminals shall support at least 32 kbit/s m
41、inimum bit rate at the mux to wireless network interface. 6.2 Information streams V.25ter discussion does not apply. 6.3 Modem Does not apply. 6.4 Multiplex 3G-324M terminals shall support H.223 1 with annex A and annex B. All other aspects shall follow H.324 10 with annex C. H.223 1 Annex C and D a
42、re optional. 6.5 Control channel No differences with H.324 10. Should it not be possible to signal an element of the 3G-324M terminal using a published version of H.245 6, a procedure will be defined here. 6.6 Video channels Support for H.261 9 is optional. Support for MPEG-4 Visual is optional. Whe
43、n supported, MPEG-4 Visual codecs shall support Simple Profile Level 0. The FLC code 0000 1000 in Table G-1 “FLC table for profile_and_level_indication“ in ISO/IEC 14496-2 14 is assigned to it. Additional information can be found in 14. MPEG-4 Visual Simple Profile level 0 provides error concealment
44、 as part of the simple profile through Data Partitioning (DP), Reversible Variable Length Coding (RVLC), Resynchronization Marker (RM) and header extension code. MPEG-4 Visual is baseline compatible with H.263 8. When opening a logical channel for MPEG-4 Visual, configuration information (Visual Obj
45、ect Sequence Header, Visual Object Header, and Video Object Layer Header) shall be sent in the decoderConfigurationInformation parameter. The same information shall also be sent in the MPEG-4 video bitstream. If the operational mode of MPEG-4 Visual encoder needs to be changed, the existing MPEG-4 v
46、ideo logical channel shall be closed and H.245 6 procedures for opening a new MPEG-4 video logical channel shall be started. The new operational mode shall be indicated in the parameters of the new logical channel. ETSI ETSI TS 126 111 V14.0.0 (2017-04)83GPP TS 26.111 version 14.0.0 Release 14Suppor
47、t for H.264 (MPEG-4 AVC) 19 is optional. When supported, H.264 codecs shall support Baseline level 1, without requirements on output timing conformance (Annex C of 19). Support for H.264 19 shall be signalled according to H.241 chapter 8 “Capability Exchange signalling“ 20. When opening a logical ch
48、annel for H.264 19, initial sequence parameter set(s) and picture parameter set(s) should be sent in a H.264 DecoderConfigurationInformation (DCI) defined in Table 1 below, amending H.241 parameters 20. Additionally, decoder capabilities may be sent in a H.264 AcceptRedundantSlices and a H.264 Profi
49、leIOP defined in Table 2 and 3 below, amending H.241 parameters 20. NOTE: The H.264 DCI parameter can also be used when either party signals a H.245 6 MasterSlaveDetermination terminalType parameter greater than 128, such as e.g. a Multipoint Conference Unit (MCU). A sequence parameter set or a picture parameter set with a particular value of seq_parameter_set_id or pic_parameter_set_id, respectively, sent in the H.264 19 DCI shall be identica
