1、ETSI TS I O0 737 V8.2.1 (2003-01) I Technical Specificafion Digital cellular telecommunications system (Phase 2+); In-band control of remote transcoders and rate adaptors for Enhanced Full Rate (EFR) and full rate traffic channels (3GPP TS 08.60 version 8.2.1 Release 1999) 3GPP TS 08.60 version 8.2.
2、1 Release 1999 1 ETSI TS 100 737 V8.2.1 (2003-01) Reference RTS/TSGG-010860821 Keywords GSM ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfect
3、ure de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: http:lwmv.etsi .arq The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such ve
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10、f information. 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 being re
11、ferences to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under ht tn : Nweb ann. et si. og;kev/aiiervfom. asn . ETSI 3GPP TS 08.60 version 8.2.1 Release 1999 3 ETSI TS 100 737 V8.2.1 (2003-01) Contents Intellectual Property Rights
12、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Foreword . 2 Foreword . 5 1 Scope 6 6 1.1 1
13、.2 8 2 General Approach . . .8 3 Frame Structure 10 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 3.1.1 3.1.2 3.2 3.3 3.3.1 3.3.2 3.4 3.5 3.5.1 3.5.1.1
14、 3.5.1.1.1 3.5.1.1.2 3.5.1.1.3 3.5.1.2 3.5.1.2.1 3.5.1.2.2 3.5.1.2.3 3.5.2 3.5.3 3.5.4 3.5.5 3.6 Frames for Speech Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Frames for Full Rate and Enhanced Full Rate Speech Frames for Adaptive Multi-Rate Speech O 2 presented to TSG
15、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 digit is incremented when editorial only changes have been incorporated in the document
16、. ETSI 3GPP TS 08.60 version 8.2.1 Release 1999 6 ETSI TS 100 737 V8.2.1 (2003-01) 1 Scope When 64 kbit/s traffic channels are used on the Abis interface, the speech shall be coded according to ITU-T Recommendation G.711 and the data rate adaptation shall be as specified in GSM 04.21 and GSM 08.20.
17、In the case where 16 kbit/s traffic channels are used for full rate speech, enhanced full rate speech, Adaptive Multi-Rate speech or full rate data service, then the present document shall apply for frame structure and for control of remote transcoders and additional rate adaptors. For Adaptive Mult
18、i-Rate speech the present document specifies the 16 kBit/s submultiplexing, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS). The specification for 8 kBit/s submultiplexing is given in GSM 08.61, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS). Th
19、e use and general aspects of the Abis interface are given in GSM 08.5 1. NOTE: The present document should be considered together with the GSM 06 series of specifications, GSM 04.21 (Rate Adaptation on the MS-BSS Interface) and GSM 08.20 (Rate Adaptation on the BS/MSC Interface). 1 .I References The
20、 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, subsequent revisions do no
21、t 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 theyresent document. il GSM O 1.04: “Digital cellular
22、telecommunications system (Phase 2+); Abbreviations and acronyms“. GSM 04.06: “Digital cellular telecommunications system (Phase 2+); Mobile Station - Base Station System (MS - BSS) interface; Data Link (DL) layer specification“. GSM 04.21 : “Digital cellular telecommunications system (Phase 2+); Ra
23、te adaption on the Mobile Station - Base Station System (MS - BSS) interface“. GSM 06.0 1 : “Digital cellular telecommunications system (Phase 2+); Full rate speech; Processing functions“. 21 31 41 51 GSM 06.10: “Digital cellular telecommunications system (Phase 2+); Full rate speech; Transcoding“ .
24、 GSM 06.11: “Digital cellular telecommunications system (Phase 2+); Full rate speech; Substitution and muting of lost frames for full rate speech channels“. GSM 06.12: “Digital cellular telecommunications system (Phase 2+); Full rate speech; Comfort noise aspect for full rate speech traffic channels
25、“. GSM 06.3 1: “Digital cellular telecommunications system (Phase 2+); Full rate speech; Discontinuous Transmission (DTX) for full rate speech traffic channels“. GSM 06.32: “Digital cellular telecommunications system (Phase 2+); Voice Activity Detector (VAD)“ . GSM 08.20: “Digital cellular telecommu
26、nications system (Phase 2+); Rate adaption on the Base Station System - Mobile-services Switching Centre (BSS - MSC) interface“. 61 71 SI 91 lo1 ETSI 3GPP TS 08.60 version 8.2.1 Release 1999 7 ETSI TS 100 737 V8.2.1 (2003-01) GSM 08.5 1 : “Digital cellular telecommunications system (Phase 2+); Base
27、Station Controller - Base Transceiver Station (BSC - BTS) interface; General aspects“. GSM 08.54: “Digital cellular telecommunications system (Phase 2+); Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Layer 1 structure of physical circuits“. GSM 08.58: “Digital cellular te
28、lecommunications system (Phase 2+); Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Layer 3 specification“. GSM 12.2 1 : “Digital cellular telecommunications system (Phase 2+); Network Management (NM) procedures and message on the A-bis interface“. ITU-T Recommendation G.71
29、1: “Pulse code modulation (PCM) of voice frequencies“. ITU-T Recommendation 1.460: “Multiplexing, rate adaption and support of existing interfaces“. ITU-T Recommendation V. 110: “Support of data terminal equipments (DTEs) with V-Series interfaces by an integrated services digital network“. GSM 06.5
30、1: “Digital cellular telecommunications system (Phase 2+); Enhanced Full rate speech processing functions“. GSM 06.60: “Digital cellular telecommunications system (Phase 2+); Enhanced Full rate speech transcoding“ . GSM 06.61 : “Digital cellular telecommunications system (Phase 2+); Substitution and
31、 muting of lost frames for Enhanced Full rate speech channels“. GSM 06.62: “Digital cellular telecommunications system (Phase 2+); Comfort noise aspect for Enhanced Full rate speech traffic channels“. GSM 06.8 1 : “Digital cellular telecommunications system (Phase 2+); Discontinuous Transmission (DT
32、X) for Enhanced Full rate speech traffic channel“. GSM 06.82: “Digital cellular telecommunications system (Phase 2+); Voice Activity Detection (VAD)“ . GSM 06.71 : “Digital cellular telecommunications system; Adaptive Multi-Rate speech processing functions, General Description“. GSM 06.90: “Digital
33、cellular telecommunications system; Adaptive Multi-Rate speech transcoding“ . GSM 06.91 : “Digital cellular telecommunications system; Substitution and muting of lost frames for Adaptive Multi-Rate speech traffic channels“. GSM 06.92: “Digital cellular telecommunications system; Comfort noise aspect
34、 for Adaptive Multi-Rate speech traffic channels“. GSM 06.93 : “Digital cellular telecommunications system; Discontinuous Transmission (DTX) for Adaptive Multi-Rate speech traffic channels“. GSM 06.94: “Digital cellular telecommunications system; Voice Activity Detection (VAD) for Adaptive Multi-Rat
35、e speech traffic channels“. GSM 05.09: “Digital cellular telecommunications system; Link Adaptation“. GSM 08.6 1 : “Digital cellular telecommunications system; Inband control of remote transcoders and rate adaptors for half rate traffic channels“. GSM 08.62: “Digital cellular telecommunications syst
36、em; Inband Tandem Free Operation (TFO) of Speech Codecs“. ETSI 3GPP TS 08.60 version 8.2.1 Release 1999 8 ETSI TS 100 737 V8.2.1 (2003-01) 1.2 Abbreviations For the purposes of the present document, the abbreviations given in GSM 01.04 and the following apply: AMR CMC CMI CMR Onset PAB PAC RATSCCH R
37、IF TAC TAE TFO TFOE UFE Adaptive Multi-Rate CodecMode-Command CodecMode-Indication CodecMode-Request Speech Onset Frame Classification Phase Alignment Bit Phase Alignment Command Robust AMR Traffic Synchronised Control CHannel Request or Indication Flag Time Alignment Command Time Alignment Extensio
38、n Tandem Free Operation TFO Enable Uplink Frame Error 2 General Approach When the transcoders/rate adaptors are positioned remote to the BTS, the information between the Channel Codec Unit (CCU) and the remote TranscodedRate Adaptor Unit (TRAU) is transferred in frames with a fixed length of 320 bit
39、s (20 ms). In the present document, these frames are denoted “TRAU frames“. Within these frames, both the speecwdata and the TRAU associated control signals are transferred. The Abis interface should be the same if the transcoder is positioned 1) at the MSC site of the BSS or if it is positioned 2)
40、at the BSC site of the BSS. In case i), the BSC should be considered as transparent for 16 kbit/s channels. In case of 4,s and 9,6 kbit/s channel coding when data is adapted to the 320 bit frames, a conversion function is required in addition to the conversionhate adaption specified in GSM 08.20. Th
41、is function constitutes the RAA. In case of 14,5 kbit/s channel coding, no RAA rate adaption is required because V. 110 framing is not used. The TRAU is considered a part of the BSC, and the signalling between the BSC and the TRAU (e.g. detection of call release, handover and transfer of O “Remote T
42、ranscoder and Rate Adaptor Control Function“ (RTRACF); “Remote Speech Handler Function“ (RSHF); The RAA function in case of 4.8 and 9.6 kbit/s channel coding; The RAA function in case of 14.5 kbit/s channel coding; - The transcoder function. - Optionally the TFO functions (see GSM 08.62). The functi
43、ons inside the CCU are: - “Transcoder and Rate Adaptor Control Function“ (TRACF); ETSI 3GPP TS 08.60 version 8.2.1 Release 1999 Trans- coder Function (Note) 9 Remote Speech Handler Function ETSI TS 100 737 V8.2.1 (2003-01) Speech Handler Function - “Speech Handler Function“ (SHF); - - - - The channe
44、l codec function; - The RAA function in case of 4.8 and 9.6 kbit/s channel coding; The RAl/RAl fnction in case of 4.8 and 9.6 kbit/s channel coding; The RAl/RAA function in case of 14.5 kbit/s channel coding; If AMR is supported, the Link Adaptation (see GSM 05.09). The present document will not des
45、cribe the procedures inside the TRAU and the CCU. The layout in figure 2.1 is only intended as a reference model. Speech BSC -I- I - TRAU (TRANSCODEWRA UNIT) + Trans- coder and RAControl signals L3 Control 16 KbiVs 320 bit/ 20 mS BTS CCU (CHANNEL CODEC UNIT) Channel Codec Function L SpeechIdata - -
46、- - - - - Control NOTE 1: This recommendation assumes the DTX handler function to be a part of the Transcoder Function. NOTE 2: This figure applies only for 4,8 kbitk and 9,6 kbis channel coding. Figure 2.1: Functional entities for handling of remote control of remote transcoders and rate adaptors N
47、OTE 2: This figure applies only for 4,s and 9,6 kbit/s channel coding. ETSI 3GPP TS 08.60 version 8.2.1 Release 1999 10 ETSI TS 100 737 V8.2.1 (2003-01) 3 Frame Structure 3.1 Frames for Speech Services 3.1 .I Frames for Full Rate and Enhanced Full Rate Speech Octet no. O 1 2 3 4 5 6 7 8 9 10 11 12 1
48、3 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 Bit number 1 2 3 4 5 6 7 8 O 1 C8 1 D8 1 D23 1 D38 1 D53 1 D68 1 D83 1 D98 1 DI13 1 DI28 1 DI43 1 DI58 1 DI 73 1 DI 88 1 D203 1 D218 1 D233 1 D248 1 CI 8 O CI c9 DI D9 DI 6 D24 D31 D39 D46 D54 D61 D69 D76 D84 D91 D99 DI
49、06 DI 14 DI21 DI29 DI 36 DI44 DI51 DI59 DI 66 DI 74 DI81 DI 89 DI 96 D204 D211 D219 D226 D234 D24 1 D249 D256 CI 9 O c2 CI o D2 DI O DI 7 D25 D32 D40 D47 D55 D62 D70 D77 D85 D92 DI O0 DI 07 DI 15 DI22 DI 30 DI 37 DI45 DI52 DI 60 DI 67 DI 75 DI 82 DI 90 DI 97 D205 D212 D220 D227 D235 D242 D250 D257 c20 O c3 CI 1 D3 DI 1 DI 8 D26 D33 D4 1 D48 D56 D63 D71 D78 D86 D93 DI01 DI 08 DI16 DI23 DI31 DI 38 DI46 DI53 DI61 DI 68 DI 76 DI 83 DI91 DI 98 D206 D213 D221 D228 D236 D243 D251 D258 c2 1 O c4 CI 2 D4 DI2 DI 9 D27 D34 D4
