1、 ETSI TS 148 060 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); In-band control of remote transcoders and rate adaptors for full rate traffic channels (3GPP TS 48.060 version 15.0.0 Release 15) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI
2、TS 148 060 V15.0.0 (2018-07)13GPP TS 48.060 version 15.0.0 Release 15Reference RTS/TSGR-0648060vf00 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
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9、Association. ETSI ETSI TS 148 060 V15.0.0 (2018-07)23GPP TS 48.060 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
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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 148 060 V15.0.0 (2018-07)33GPP TS 48.060 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs term
17、inology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Abbreviations . 8g34 General Approach. 8g35 Frame Structure 10g35.1 Frames for Speech Services 10g35.1.1 Frames for Full Rate and Enhanced Full Rate Speech 10g35.1.2 Frames for Adaptive Multi-Rate Speech (AMR-NB) . 11g35.1.3 Frames for Adaptive M
18、ulti-Rate Wideband Speech (AMR-WB) (16 kbit/s) . 11g35.1.4 Frames for Adaptive Multi-Rate Wideband Speech (AMR-WB) (32 kbit/s) . 11g35.1.5 Frames for Speech Codec Configuration Exchange . 12g35.2 O 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y
19、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 148 060 V15.0.0 (2018-07)63GPP TS 48.060 version 15.0.0 Release 151
20、Scope When 64 kbit/s traffic channels are used on the Abis interface, the speech shall be coded according to CCITT Recommendation G.711 and the data rate adaptation shall be as specified in 3GPP TS 44.021 and 3GPP TS 48.020. In the case where 16 kbit/s traffic channels are used for full rate speech,
21、 enhanced full rate speech, Adaptive Multi-Rate speech, Adaptive Multi-Rate Wideband 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 Multi-Rate speech the present document spe
22、cifies the 16 kBit/s submultiplexing, both for the full and the half rate traffic channels (TCH/AFS, TCH/AHS, TCH/WFS and O-TCH/WHS). The specification for 8 kBit/s submultiplexing is given in 3GPP TS 48.061, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS). Additionally, t
23、he present document specifies the 32 kBit/s submultiplexing for Adaptive Multi-Rate Wideband speech. However it reuses the frame structure of the 16 kBit/s submultiplexing for Adaptive Multi-Rate speech. The use and general aspects of the Abis interface are given in 3GPP TS 48.051. NOTE: The present
24、 document should be considered together with the 3GPP TS 06 series of specifications, 3GPP TS 44.021 (Rate Adaptation on the MS-BSS Interface) and 3GPP TS 48.020 (Rate Adaptation on the BS/MSC Interface). 2 References The following documents contain provisions which, through reference in this text,
25、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 the case
26、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 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 44.006: “Mobile Station - Base Station System
27、 (MS - BSS) interface Data Link (DL) layer specification“. 3 3GPP TS 44.021: “Rate adaption on the Mobile Station 4 Void. 5 3GPP TS 46.010: “Full rate speech; Transcoding“. 6 3GPP TS 46.011: “Full rate speech; Substitution and muting of lost frames for full rate speech channels“. 7 3GPP TS 46.012: “
28、Full rate speech; Comfort noise aspect for full rate speech traffic channels“. 8 3GPP TS 46.031: “Full rate speech; Discontinuous Transmission (DTX) for full rate speech traffic channels“. 9 3GPP TS 46.032: “Voice Activity Detector (VAD)“. 10 3GPP TS 48.020: “Rate adaption on the Base Station System
29、 - Mobile-services Switching Centre (BSS - MSC) interface“. 11 3GPP TS 48.051: “Base Station Controller - Base Transceiver Station (BSC - BTS) interface; General aspects“. ETSI ETSI TS 148 060 V15.0.0 (2018-07)73GPP TS 48.060 version 15.0.0 Release 1512 3GPP TS 48.054: “Base Station Controller - Bas
30、e 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: “Network Management (NM) procedures and message on the A-bis interface“. 15 CCI
31、TT Recommendation G.711: “Pulse code modulation (PCM) of voice frequencies“. 16 CCITT Recommendation I.460: “Multiplexing, rate adaption and support of existing interfaces“. 17 CCITT Recommendation V.110: “Support of data terminal equipments (DTEs) with V-Series interfaces by an integrated services
32、digital network“. 18 Void. 19 3GPP TS 46.060: “Enhanced Full rate speech transcoding“. 20 3GPP TS 46.061: “Substitution and muting of lost frames for Enhanced Full rate speech channels“. 21 3GPP TS 46.062: “Comfort noise aspect for Enhanced Full rate speech traffic channels“. 22 3GPP TS 46.081: “Dis
33、continuous Transmission (DTX) for Enhanced Full rate speech traffic channel“. 23 3GPP TS 46.082: “Voice Activity Detection (VAD)“. 24 Void. 25 3GPP TS 26.090: “Adaptive Multi-Rate speech transcoding“. 26 3GPP TS 26.091: “Substitution and muting of lost frames for Adaptive Multi-Rate speech traffic c
34、hannels“. 27 3GPP TS 26.092: “Comfort noise aspect for Adaptive Multi-Rate speech traffic channels“. 28 3GPP TS 26.093: “Discontinuous Transmission (DTX) for Adaptive Multi-Rate speech traffic channels“. 29 3GPP TS 26.094: “Voice Activity Detection (VAD) for Adaptive Multi-Rate speech traffic channe
35、ls “. 30 3GPP TS 45.009: “Link Adaptation“. 31 3GPP TS 48.061: “Inband control of remote transcoders and rate adaptors (half rate)“. 32 3GPP TS 28.062: “Inband Tandem Free Operation (TFO) of Speech Codecs“. 33 3G 26.171: “Digital cellular telecommunications system; Adaptive Multi-Rate Wideband speec
36、h processing functions, General Description.“ 34 3G 26.190: “Digital cellular telecommunications system; Adaptive Multi-Rate Wideband speech transcoding“. 35 3G 26.191: “Digital cellular telecommunications system; Substitution and muting of lost frames for Adaptive Multi-Rate Wideband speech traffic
37、 channels“. 36 3G 26.192: “Digital cellular telecommunications system; Comfort noise aspect for Adaptive Multi-Rate Wideband speech traffic channels“. 37 3G 26.193: “Digital cellular telecommunications system; Discontinuous Transmission (DTX) for Adaptive Multi-Rate Wideband speech traffic channels“
38、. 38 3G 26.194: “Digital cellular telecommunications system; Voice Activity Detection (VAD) for Adaptive Multi-Rate Wideband speech traffic channels “. ETSI ETSI TS 148 060 V15.0.0 (2018-07)83GPP TS 48.060 version 15.0.0 Release 153 Abbreviations Abbreviations used in the present document are listed
39、 in 3GPP TS 21.905. Additionally: AMR Adaptive Multi-Rate AMR-WB Adaptive Multi-Rate Wideband CMC Codec_Mode_Command CMI Codec_Mode_Indication CMR Codec_Mode_Request Onset Speech Onset Frame Classification PAB Phase Alignment Bit PAC Phase Alignment Command RATSCCH Robust AMR Traffic Synchronised Co
40、ntrol CHannel RIF Request or Indication Flag TAC Time Alignment Command TAE Time Alignment Extension TFO Tandem Free Operation TFOE TFO Enable UFE Uplink Frame Error 4 General Approach When the transcoders/rate adaptors are positioned remote to the BTS, the information between the Channel Codec Unit
41、 (CCU) and the remote Transcoder/Rate Adaptor Unit (TRAU) is transferred in frames with a fixed length of 320 bits (20 ms). In the present document, these frames are denoted “TRAU frames“. Within these frames, both the speech/data and the TRAU associated control signals are transferred. The Abis int
42、erface should be the same if the transcoder is positioned 1) at the MSC site of the BSS or if it is positioned 2) at the BSC site of the BSS. In case 1), the BSC should be considered as transparent for 16 kbit/s channels. In case of 4,8 and 9,6 kbit/s channel coding when data is adapted to the 320 b
43、it frames, a conversion function is required in addition to the conversion/rate adaption specified in 3GPP TS 48.020. This 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
44、, 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 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 RA2 function; - Th
45、e transcoder function. - Optionally the TFO functions (see 3GPP TS 28.062). The functions inside the CCU are: - “Transcoder and Rate Adaptor Control Function“ (TRACF); ETSI ETSI TS 148 060 V15.0.0 (2018-07)93GPP TS 48.060 version 15.0.0 Release 15- “Speech Handler Function“ (SHF); - The RAA function
46、 in case of 4.8 and 9.6 kbit/s channel coding; - The RA1/RA1 function in case of 4.8 and 9.6 kbit/s channel coding; - The RA1/RAA function in case of 14.5 kbit/s channel coding; - The channel codec function; - If AMR or AMR-WB is supported, the Link Adaptation (see 3GPP TS 45.009). The present docum
47、ent will not describe the procedures inside the TRAU and the CCU. The layout in figure 4.1 is only intended as a reference model. Figure 4.1: Functional entities for handling of remote control of remote transcoders and rate adaptors NOTE: This figure applies only for 4,8 and 9,6 kbit/s channel codin
48、g. ETSI ETSI TS 148 060 V15.0.0 (2018-07)103GPP TS 48.060 version 15.0.0 Release 155 Frame Structure 5.1 Frames for Speech Services 5.1.1 Frames for Full Rate and Enhanced Full Rate Speech Bit number Octet no. 1 2 3 4 5 6 7 8 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 1 C1 C2 C3 C4 C5 C6 C7 3 C8 C9 C10 C
49、11 C12 C13 C14 C15 4 1 D1 D2 D3 D4 D5 D6 D7 5 D8 D9 D10 D11 D12 D13 D14 D15 6 1 D16 D17 D18 D19 D20 D21 D22 7 D23 D24 D25 D26 D27 D28 D29 D30 8 1 D31 D32 D33 D34 D35 D36 D37 9 D38 D39 D40 D41 D42 D43 D44 D45 10 1 D46 D47 D48 D49 D50 D51 D52 11 D53 D54 D55 D56 D57 D58 D59 D60 12 1 D61 D62 D63 D64 D65 D66 D67 13 D68 D69 D70 D71 D72 D73 D74 D75 14 1 D76 D77 D78 D79 D80 D81 D82 15 D83 D84 D85 D86 D87 D88 D89 D90 16 1 D91 D92 D93 D94 D95 D96 D97 17 D98 D99 D100 D101 D102 D103 D104 D105 18 1 D106 D
