1、 ETSI TS 148 061 V14.0.0 (2017-04) 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 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI
2、TS 148 061 V14.0.0 (2017-04)13GPP TS 48.061 version 14.0.0 Release 14Reference RTS/TSGR-0648061ve00 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
4、ument shall not be modified without 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 wit
5、hin ETSI Secretariat. Users of the present 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 pres
6、ent document, please send your comment 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 authoriz
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. European Telecommunications Standards Institute 2017. All rights reserved. DECTTM, PLUGTE
8、STSTM, UMTSTMand the ETSI logo are Trade 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
9、. ETSI ETSI TS 148 061 V14.0.0 (2017-04)23GPP TS 48.061 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 IPRs, if any, is publicly available for ETSI mem
10、bers 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 ETSI Web server (https:/ipr.ets
11、i.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, or may become, essential to th
12、e 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 GSM identities. These should be interpreted as bei
13、ng 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“, “should“, “should not“, “may“, “need not“, “will“, “
14、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. ETSI ETSI TS 148 061 V14.0.0 (2017-04)33GPP TS 48
15、.061 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 General approach 8g35 Frame structure . 10g35.1 16 kbit/s submulti
16、plexing . 10g35.1.1 Frames for Speech Services 10g35.1.1.1 Frame for Half Rate speech . 10g35.1.1.2 Frames for Adaptive Multi-Rate Speech . 10g35.1.2 Data frame 11g35.1.3 O 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incre
17、mented 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 148 061 V14.0.0 (2017-04)63GPP TS 48.061 version 14.0.0 Release 141 Scope The present documen
18、t 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 Half Rate speech and half rate data the protocol is specified for 8 kbit/s and 16 kbit/s submultiplexing scheme. For A
19、daptive 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 16 kBit/s submultiplexing is given in Rec 3GPP TS 48.060, both for the full and the half rate traffic channels (TCH
20、/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 Adaption on the BTS/MSC Interface). 2 References The following documents contain provisions which, through reference in th
21、is 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, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In
22、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 3GPP TS 01.02: “Digital cellular telecommunication system (Phase 2+); General description of a GSM P
23、ublic 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) interface“. 4 3GPP TS 45.003: “Channel coding“. 5 3GPP TS 46.021: “Half rate speech; Substitution and muting of lost fram
24、es for half rate speech traffic channels“. 6 3GPP TS 46.022: “Half rate speech; Comfort noise aspects 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 Activ
25、ity Detector (VAD) for half rate speech traffic channels“. 9 3GPP TS 48.008: “Mobile-services Switching 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 3
26、GPP TS 48.052: “Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Interface 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 Tr
27、ansceiver Station (BSC - BTS) interface; Layer 3 specification“. ETSI ETSI TS 148 061 V14.0.0 (2017-04)73GPP TS 48.061 version 14.0.0 Release 1414 3GPP TS 12.21: “Digital cellular telecommunication system (Phase 2); Network Management (NM) procedures and messages on the A-bis interface“. 15 ITU-T Re
28、commendation 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 interfaces by an integrated services digital network“. 24 3GPP TS 26.071: “Adaptive Multi-Rate speech processing functions, G
29、eneral 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“. 28 Void. 29 Void. 30 Void. 31 3GPP TS 48.060: “Inband control of remote transcoders and rate adaptors“. 32 3GPP TS 48.
30、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 definitions apply to the present document. 3.2 Abbreviations For the purposes of the present document, the following abbreviation
31、s apply: ACS Active_Codec_Set AMR Adaptive Multi-RateBSC Base Station Controller BTS Base Transceiver 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 Com
32、mand RA Rate Adaption RIF Request or Indication Flag TAC Time Alignment Command TAE Time Alignment 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. ETSI ETS
33、I TS 148 061 V14.0.0 (2017-04)83GPP TS 48.061 version 14.0.0 Release 144 General approach The TRAU shall be controlled by the BTS when it is positioned remote from the BTS. In this case, the speech/data information and TRAU control signals exchanged between the Channel Codec Unit (CCU) in the BTS an
34、d 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 traffic channel bit rate or submultiplexing scheme is operator dependent. The TRAU frames have a fixed length of: - 160 bits (2
35、0 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 is positioned either at the MSC site or at the BSC site. In the first case, the BSC should be considered as transparent for
36、 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 TRAU (e.g. detection of call release, handover and transfer of O - “Remote Speech Handler Function“ (RSHF); - the RAA funct
37、ion; - the RA2 function; - the transcoder function. The functions inside the CCU are: - “Transcoder 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 proc
38、edures inside the TRAU and the CCU. The layout in figure 4.1 is only intended as a reference model. ETSI ETSI TS 148 061 V14.0.0 (2017-04)93GPP TS 48.061 version 14.0.0 Release 14Transcoderand RAControlFunctionRemoteTranscoderand RAControlFunctionRAARA2 RA1 RA1ChannelCodecFunctionDataControlSpeech/D
39、ataRemoteSpeechHandlerFunctionRadioframesSpeech64kbit/s8kbit/s16 kbit/s320bit/20ms160bit/20msSpeechHandlerFunctionTranscoderFunction(note)L3 controlsignalsRAADataSpeechNOTE: This technical specification assumes the DTX handler function to be part of the Transcoder Function. Figure 3GPP TS 48.061/4.1
40、: Functional entities for handling of control of remote transcoders and rate adaptors ETSI ETSI TS 148 061 V14.0.0 (2017-04)103GPP TS 48.061 version 14.0.0 Release 145 Frame structure 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 n
41、o. 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 D16 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 D4
42、4 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 D79 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 D
43、105 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 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
44、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-Rate Speech See 3GPP TS 48.060 for16 kBit/s submultiplexing. ETSI ETSI TS 148 061 V14.0.0 (2017-04)113GPP TS 48.061 vers
45、ion 14.0.0 Release 145.1.2 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 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
46、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 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
47、 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 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 D5
48、2 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 V14.0.0 (2017-04)123GPP TS 48.061 version 14.0.0 Release
49、145.1.3 O CMR = ?; RIF = 0. 0 . 0 . 1: CMI = 5,15; CMR = ?; RIF = 0. 0 . 1 . 0: CMI = 5,90; CMR = ?; RIF = 0. 0 . 1 . 1: CMI = ?; CMR = 4,75; RIF = 1. 1 . 0 . 0: CMI = ?; CMR = 5,15; RIF = 1. 1 . 0 . 1: CMI = ?; CMR = 5,90; RIF = 1. ETSI ETSI TS 148 061 V14.0.0 (2017-04)253GPP TS 48.061 version 14.0.0 Release 141 . 1 . 0: CMI = ?; CMR = 6,70; RIF = 1. 1 . 1 . 1: CMI = ?; CMR = 7,40; RIF = 1. Frame_Classification (C4C5) is defined and coded as in 3GPP T
