1、 ETSI TS 148 061 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); In-band control of remote transcoders and rate adaptors for half rate traffic channels (3GPP TS 48.061 version 15.0.0 Release 15) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI
2、TS 148 061 V15.0.0 (2018-07)13GPP TS 48.061 version 15.0.0 Release 15Reference RTS/TSGR-0648061vf00 Keywords GSM 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 enreg
3、istre 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 print versions of the present doc
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7、ed by written permission of ETSI. The 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. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademar
8、ks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM
9、Association. ETSI ETSI TS 148 061 V15.0.0 (2018-07)23GPP TS 48.061 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 these essential IPRs, if any, is
10、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 available on the
11、ETSI Web server (https:/ipr.etsi.org/). 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,
12、 or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right t
13、o 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 produced by ETSI 3rd Generati
14、on 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 reference between GSM, UMTS, 3GPP and
15、 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 clause 3.2 of the ETSI Drafting R
16、ules (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 148 061 V15.0.0 (2018-07)33GPP TS 48.061 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs term
17、inology 2g3Foreword . 5g31 Scope 5g32 References 5g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 6g34 General approach 7g35 Frame structure . 9g35.1 16 kbit/s submultiplexing . 9g35.1.1 Frames for Speech Services 9g35.1.1.1 Frame for Half Rate speech . 9g35.1.1.2 Frame
18、s for Adaptive Multi-Rate Speech . 9g35.1.2 Data frame 10g35.1.3 O 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, etc. z the third d
19、igit is incremented when editorial only changes have been incorporated in the document. 1 Scope The present document describes the protocol between the Base Transceiver Station (BTS) and the remote Transcoder/Rate Adaption Unit (TRAU) for speech and data on half rate traffic channel (TCH/H). For Hal
20、f Rate speech and half rate data the protocol is specified for 8 kbit/s and 16 kbit/s submultiplexing scheme. For Adaptive Multi-Rate speech the present document specifies the 8 kBit/s submultiplexing, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS). The specification for
21、16 kBit/s submultiplexing is given in Rec 3GPP TS 48.060, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS). The present document should be considered together with the 3GPP TS 46 series, 3GPP TS 44.021 (Rate Adaption on the MS-BSS Interface) and 3GPP TS 48.020 (Rate Adaptio
22、n on the BTS/MSC Interface). 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
23、 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 the
24、 present document. 1 3GPP TS 01.02: “Digital cellular telecommunication system (Phase 2+); General description of a GSM Public Land Mobile Network (PLMN)“. 2 3GPP TS 21.905: “Vocabulary for 3GPP Specifications“. 3 3GPP TS 44.021: “Rate adaption on the Mobile Station - Base Station System (MS - BSS)
25、interface“. 4 3GPP TS 45.003: “Channel coding“. ETSI ETSI TS 148 061 V15.0.0 (2018-07)63GPP TS 48.061 version 15.0.0 Release 155 3GPP TS 46.021: “Half rate speech; Substitution and muting of lost frames for half rate speech traffic channels“. 6 3GPP TS 46.022: “Half rate speech; Comfort noise aspect
26、s for half rate speech traffic channels“. 7 3GPP TS 46.041: “Half rate speech; Discontinuous Transmission (DTX) for half rate speech traffic channels“. 8 3GPP TS 46.042: “Half rate speech; Voice Activity Detector (VAD) for half rate speech traffic channels“. 9 3GPP TS 48.008: “Mobile-services Switch
27、ing Centre Base Station System (MSC-BSS) interface; Layer 3 specification“. 10 3GPP TS 48.020: “Rate adaption on the Base Station System - Mobile-services Switching Centre (BSS - MSC) interface“. 11 3GPP TS 48.052: “Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Interface
28、principles“. 12 3GPP TS 48.054: “Base Station Controller - Base Transceiver Station (BSC - BTS) interface Layer 1 structure of physical circuits“. 13 3GPP TS 48.058: “Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Layer 3 specification“. 14 3GPP TS 12.21: “Digital cellular
29、 telecommunication system (Phase 2); Network Management (NM) procedures and messages on the A-bis interface“. 15 ITU-T Recommendation I.460: “Multiplexing, rate adaption and support of existing interfaces“. 16 ITU-T Recommendation V.110: “Support of data terminal equipments (DTEs) with V-Series inte
30、rfaces by an integrated services digital network“. 24 3GPP TS 26.071: “Adaptive Multi-Rate speech processing functions, General Description.“ 25 3GPP TS 26.090: “Adaptive Multi-Rate speech transcoding“. 26 Void. 27 3GPP TS 26.092: “Comfort noise aspect for Adaptive Multi-Rate speech traffic channels
31、“. 28 Void. 29 Void. 30 Void. 31 3GPP TS 48.060: “Inband control of remote transcoders and rate adaptors“. 32 3GPP TS 48.062: “Inband Tandem Free Operation (TFO) of Speech Codecs“. 33 3GPP TS 46.020: “Half Rate Speech Transcoding“. 3 Definitions and abbreviations 3.1 Definitions No specific definiti
32、ons apply to the present document. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ACS Active_Codec_Set ETSI ETSI TS 148 061 V15.0.0 (2018-07)73GPP TS 48.061 version 15.0.0 Release 15AMR Adaptive Multi-Rate BSC Base Station Controller BTS Base Transceiv
33、er Station CCU Channel Codec Unit CMC Codec_Mode_Command CMI Codec_Mode_Indication CMR Codec_Mode_Request DFE Downlink Frame Error ICM Initial_Codec_Mode PAB Phase Alignment Bit PAC Phase Alignment Command RA Rate Adaption RIF Request or Indication Flag TAC Time Alignment Command TAE Time Alignment
34、Extension TFO Tandem Free Operation TFOE TFO Enable TRAU Transcoder and Rate Adaption Unit UFE Uplink Frame Error Other abbreviations used in the present document are listed in 3GPP TS 21.905. 4 General approach The TRAU shall be controlled by the BTS when it is positioned remote from the BTS. In th
35、is case, the speech/data information and TRAU control signals exchanged between the Channel Codec Unit (CCU) in the BTS and the TRAU shall be transferred in frames denoted “TRAU frames“. The TRAU frames may be carried by either 16 kbit/s traffic channels or 8 kbit/s channels. The choice of the traff
36、ic channel bit rate or submultiplexing scheme is operator dependent. The TRAU frames have a fixed length of: - 160 bits (20 ms) when 8 kbit/s submultiplexing is used; - 320 bits (20 ms) when 16 kbit/s submultiplexing is used. The protocol between the BTS and the TRAU should be the same if the TRAU i
37、s positioned either at the MSC site or at the BSC site. In the first case, the BSC should be considered as transparent for 16 kbit/s and 8 kbit/s channels. The TRAU is considered a part of the BSC when the TRAU is remote from the BTS (see 3GPP TS 48.052), and the signalling between the BSC and the T
38、RAU (e.g. detection of call release, handover and transfer of O - “Remote Speech Handler Function“ (RSHF); - the RAA function; - the RA2 function; - the transcoder function. ETSI ETSI TS 148 061 V15.0.0 (2018-07)83GPP TS 48.061 version 15.0.0 Release 15The functions inside the CCU are: - “Transcoder
39、 and Rate Adaptor Control Function“ (TRACF); - “Speech Handler Function“ (SHF); - the RAA function; - the RA1/RA1 function; - the channel codec function. The present document does not describe the procedures inside the TRAU and the CCU. The layout in figure 4.1 is only intended as a reference model.
40、 Transcoderand RAControlFunctionRemoteTranscoderand RAControlFunctionRAARA2 RA1 RA1ChannelCodecFunctionDataControlSpeech/DataRemoteSpeechHandlerFunctionRadioframesSpeech64kbit/s8kbit/s16 kbit/s320bit/20ms160bit/20msSpeechHandlerFunctionTranscoderFunction(note)L3 controlsignalsRAADataSpeechNOTE: This
41、 technical specification assumes the DTX handler function to be part of the Transcoder Function. Figure 3GPP TS 48.061/4.1: Functional entities for handling of control of remote transcoders and rate adaptors ETSI ETSI TS 148 061 V15.0.0 (2018-07)93GPP TS 48.061 version 15.0.0 Release 155 Frame struc
42、ture 5.1 16 kbit/s submultiplexing 5.1.1 Frames for Speech Services 5.1.1.1 Frame for Half Rate speech Bit number Octet no. 1 2 3 4 5 6 7 8 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3 1 C1 C2 C3 C4 C5 C6 C7 4 C8 C9 C10 C11 C12 C13 C14 C15 5 1 UFI D1 D2 D3 D4 D5 D6 6 D7 D8 D9 D10 D11 D12 D13 D14 7 1 D15 D1
43、6 D17 D18 D19 D20 D21 8 D22 D23 D24 D25 D26 D27 D28 D29 9 1 D30 D31 D32 D33 D34 D35 D36 10 D37 D38 D39 D40 D41 D42 D43 D44 11 1 CRC2 CRC1 CRC0 D45 D46 D47 D48 12 D49 D50 D51 D52 D53 D54 D55 D56 13 1 D57 D58 D59 D60 D61 D62 D63 14 D64 D65 D66 D67 D68 D69 D70 D71 15 1 D72 D73 D74 D75 D76 D77 D78 16 D7
44、9 D80 D81 D82 D83 D84 D85 D86 17 1 D87 D88 D89 D90 D91 D92 D93 18 D94 D95 D96 D97 D98 D99 D100 D101 19 1 D102 D103 D104 D105 D106 D107 D108 20 D109 D110 D111 D112 1 1 1 1 21 1 1 1 1 1 1 1 1 22 1 1 1 1 1 1 1 1 23 1 1 1 1 1 1 1 1 24 1 1 1 1 1 1 1 1 25 1 1 1 1 1 1 1 1 26 1 1 1 1 1 1 1 1 27 1 1 1 1 1 1
45、1 1 28 1 1 1 1 1 1 1 1 29 1 1 1 1 1 1 1 1 30 1 1 1 1 1 1 1 1 31 1 1 1 1 1 1 1 1 32 1 1 1 1 1 1 1 1 33 1 1 1 1 1 1 1 1 34 1 1 1 1 1 1 1 1 35 1 1 1 1 1 1 1 1 36 1 1 1 1 1 1 1 1 37 1 1 1 1 1 1 1 1 38 1 1 1 1 1 1 1 1 39 1 1 1 1 1 1 C16 C17 40 C18 C19 C20 C21 T1 T2 T3 T4 5.1.1.2 Frames for Adaptive Multi
46、-Rate Speech See 3GPP TS 48.060 for16 kBit/s submultiplexing. ETSI ETSI TS 148 061 V15.0.0 (2018-07)103GPP TS 48.061 version 15.0.0 Release 155.1.2 Data frame Bit number Octet no. 1 2 3 4 5 6 7 8 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 3 1 C1 C2 C3 C4 C5 C6 C7 4 C8 C9 C10 C11 C12 C13 C14 C15 5 1 D1 D2 D3
47、D4 D5 D6 D7 6 1 D8 D9 D10 D11 D12 D13 D14 7 1 D15 D16 D17 D18 D19 D20 D21 8 1 D22 D23 D24 D25 D26 D27 D28 Data frame 9 1 D29 D30 D31 D32 D33 D34 D35 position 110 1 D36 D37 D38 D39 D40 D41 D42 11 1 D43 D44 D45 D46 D47 D48 D49 12 1 D50 D51 D52 D53 D54 D55 D56 13 1 D57 D58 D59 D60 D61 D62 D63 14 1 1 1
48、1 1 1 1 1 15 1 1 1 1 1 1 1 1 16 1 1 1 1 1 1 1 1 17 1 1 1 1 1 1 1 1 18 1 1 1 1 1 1 1 1 19 1 1 1 1 1 1 1 1 20 1 1 1 1 1 1 1 1 21 1 1 1 1 1 1 1 1 22 1 1 1 1 1 1 1 1 23 1 D1 D2 D3 D4 D5 D6 D7 24 1 D8 D9 D10 D11 D12 D13 D14 25 1 D15 D16 D17 D18 D19 D20 D21 26 1 D22 D23 D24 D25 D26 D27 D28 Data frame 27 1
49、 D29 D30 D31 D32 D33 D34 D35 position 3 28 1 D36 D37 D38 D39 D40 D41 D42 29 1 D43 D44 D45 D46 D47 D48 D49 30 1 D50 D51 D52 D53 D54 D55 D56 31 1 D57 D58 D59 D60 D61 D62 D63 32 1 1 1 1 1 1 1 1 33 1 1 1 1 1 1 1 1 34 1 1 1 1 1 1 1 1 35 1 1 1 1 1 1 1 1 36 1 1 1 1 1 1 1 1 37 1 1 1 1 1 1 1 1 38 1 1 1 1 1 1 1 1 39 1 1 1 1 1 1 1 1 40 1 1 1 1 1 1 1 1 ETSI ETSI TS 148 061 V15.0.0 (2018-07)113GPP TS 48.061 version 15.0.0 Release 155.1.3 O CMR = ?; RIF = 0. 0 . 0 . 1: CMI
