1、 ETSI TS 101 851-2-2 V2.1.1 (2008-01)Technical Specification Satellite Earth Stations and Systems (SES);Satellite Component of UMTS/IMT-2000;Part 2: Multiplexing and channel coding;Sub-part 2: A-family (S-UMTS-A 25.212)ETSI ETSI TS 101 851-2-2 V2.1.1 (2008-01) 2 Reference RTS/SES-00298-2-2 Keywords
2、MES, MSS, satellite, 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 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of
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5、his and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as au
6、thorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for
7、the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 101 851-2-2 V2.1.1 (2008-01) 3 Contents Intellectual Property Rights5 Foreword.5 Introduction 5 1 Scope 7 2 References 7 2.1 Normative references
8、 .7 2.2 Informative references8 3 Definitions, symbols and abbreviations .8 3.1 Definitions8 3.2 Symbols8 3.3 Abbreviations .9 4 Multiplexing, channel coding and interleaving9 4.1 General .9 4.2 Transport-channel coding / multiplexing .9 4.2.1 Error detection 13 4.2.1.1 CRC Calculation .13 4.2.1.1.1
9、 Relation between input and output of the Cyclic Redundancy Check.13 4.2.2 Transport block concatenation and code block segmentation.14 4.2.2.1 Concatenation of transport blocks.14 4.2.2.2 Code block segmentation 14 4.2.3 Channel coding .15 4.2.3.1 Convolutional coding16 4.2.3.2 Turbo coding.16 4.2.
10、3.2.1 Turbo coder .16 4.2.3.2.2 Trellis termination for Turbo coder .17 4.2.3.2.3 Turbo code internal interleaver17 4.2.3.3 Concatenation of encoded blocks21 4.2.4 Radio frame size equalization.21 4.2.5 1stinterleaving 22 4.2.5.1 Insertion of marked bits in the sequence to be input in first interlea
11、ver22 4.2.5.2 1stinterleaver operation.23 4.2.5.3 Relation between input and output of 1stinterleaving in uplink24 4.2.5.4 Relation between input and output of 1stinterleaving in downlink.24 4.2.6 Radio frame segmentation 24 4.2.6.1 Relation between input and output of the radio frame segmentation b
12、lock in uplink .24 4.2.6.2 Relation between input and output of the radio frame segmentation block in downlink 25 4.2.7 Rate matching .25 4.2.7.1 Determination of rate matching parameters in uplink.27 4.2.7.1.1 Determination of SF and number of PhCHs needed27 4.2.7.1.2 Determination of parameters ne
13、eded for calculating the rate-matching pattern 28 4.2.7.2 Determination of rate matching parameters in downlink 30 4.2.7.2.1 Determination of rate matching parameters for fixed positions of TrCHs 31 4.2.7.2.2 Determination of rate matching parameters for flexible positions of TrCHs 34 4.2.7.3 Bit se
14、paration and collection in uplink36 4.2.7.3.1 Bit separation.38 4.2.7.3.2 Bit collection .38 4.2.7.4 Bit separation and collection in downlink.39 4.2.7.4.1 Bit separation.40 4.2.7.4.2 Bit collection .40 4.2.7.5 Rate matching pattern determination 41 4.2.8 TrCH multiplexing42 4.2.9 Insertion of disco
15、ntinuous transmission (DTX) indication bits 42 4.2.9.1 1stinsertion of DTX indication bits.42 ETSI ETSI TS 101 851-2-2 V2.1.1 (2008-01) 4 4.2.9.2 2ndinsertion of DTX indication bits 43 4.2.10 Physical channel segmentation .44 4.2.10.1 Relation between input and output of the physical segmentation bl
16、ock in uplink 44 4.2.10.2 Relation between input and output of the physical segmentation block in downlink .44 4.2.11 2ndinterleaving45 4.2.12 Physical channel mapping 45 4.2.12.1 Uplink .46 4.2.12.2 Downlink.46 4.2.13 Restrictions on different types of CCTrCHs.46 4.2.13.1 Uplink Dedicated channel (
17、DCH) .46 4.2.13.2 Random Access Channel (RACH)47 4.2.13.3 Downlink Dedicated Channel (DCH) .47 4.2.13.4 Downlink Shared Channel (DSCH) associated with a DCH.47 4.2.13.5 Broadcast channel (BCH) .47 4.2.13.6 Forward access and paging channels (FACH and PCH).47 4.2.14 Multiplexing of different transpor
18、t channels into one CCTrCH, and mapping of one CCTrCH onto physical channels 48 4.2.14.1 Allowed CCTrCH combinations for one UE 48 4.2.14.1.1 Allowed CCTrCH combinations on the uplink .48 4.2.14.1.2 Allowed CCTrCH combinations on the downlink 48 4.2.15 Downlink data randomization.49 4.3 Transport fo
19、rmat detection .49 4.3.1 Blind transport format detection .50 4.3.2 Transport format detection based on TFCI.50 4.3.3 Coding of Transport-Format-Combination Indicator and Power Control Commands (TFCI / TPC).50 4.3.4 Operation of Transport-Format-Combination Indicator and Power Control Command (TFCI
20、/ TPC) in Split Mode 52 4.3.5 Mapping of TFCI / TPC words.53 4.3.5.1 Mapping of TFCI / TPC word in normal mode.53 4.3.5.2 Mapping of TFCI / TPC word in compressed mode .53 4.3.5.2.1 Uplink compressed mode 53 4.3.5.2.2 Downlink compressed mode .54 4.4 Compressed mode 54 4.4.1 Frame structure in the u
21、plink 55 4.4.2 Frame structure types in the downlink55 4.4.3 Transmission time reduction method55 4.4.3.1 Compressed mode by puncturing55 4.4.3.2 Compressed mode by reducing the spreading factor by 2.56 4.4.3.3 Compressed mode by higher layer scheduling56 4.4.4 Transmission gap position 56 Annex A (
22、informative): Blind transport format detection58 A.1 Blind transport format detection using fixed positions 58 A.1.1 Blind transport format detection using received power ratio58 A.1.2 Blind transport format detection using CRC 58 Annex B (informative): Compressed mode idle lengths61 B.1 Idle length
23、s for DL, UL and DL + UL compressed mode .61 Annex C (informative): Bibliography.63 History 64 ETSI ETSI TS 101 851-2-2 V2.1.1 (2008-01) 5 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these
24、essential 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 up
25、dates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). 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 t
26、he ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is specifying the Satellite Radio Interface referenced
27、 as SRI Family A at ITU-R, in the frame of ITU-R Recommendation M.1457 7. The present document is part 2, sub-part 2 of a multi-part deliverable covering Satellite Earth Stations and Systems (SES); Satellite Component of UMTS/IMT-2000; A-family, as identified below: Part 1: “Physical channels and ma
28、pping of transport channels into physical channels“; Part 2: “Multiplexing and channel coding“; Sub-part 1: “G-family (S-UMTS-G 25.212)“; Sub-part 2: “A-family (S-UMTS-A 25.212)“; Part 3: “Spreading and modulation“; Part 4: “Physical layer procedures“; Part 5: “UE Radio Transmission and Reception“;
29、Part 6: “Ground stations and space segment radio transmission and reception“. Introduction S-UMTS stands for the Satellite component of the Universal Mobile Telecommunication System. S-UMTS systems will complement the terrestrial UMTS (T-UMTS) and inter-work with other IMT-2000 family members throug
30、h the UMTS core network. S-UMTS will be used to deliver 3rdgeneration mobile satellite services (MSS) utilizing either low (LEO) or medium (MEO) earth orbiting, or geostationary (GEO) satellite(s). S-UMTS systems are based on terrestrial 3GPP specifications and will support access to GSM / UMTS core
31、 networks. NOTE 1: The term T-UMTS will be used in the present document to further differentiate the Terrestrial UMTS component. Due to the differences between terrestrial and satellite channel characteristics, some modifications to the terrestrial UMTS (T-UMTS) standards are necessary. Some specifi
32、cations are directly applicable, whereas others are applicable with modifications. Similarly, some T-UMTS specifications do not apply, whilst some S-UMTS specifications have no corresponding T-UMTS specification. ETSI ETSI TS 101 851-2-2 V2.1.1 (2008-01) 6 Since S-UMTS is derived from T-UMTS, the or
33、ganization of the S-UMTS specifications closely follows the original 3rdGeneration Partnership Project (3GPP) structure. The S-UMTS numbers have been designed to correspond to the 3GPP terrestrial UMTS numbering system. All S-UMTS specifications are allocated a unique S-UMTS number as follows: S-UMT
34、S-n xx.yyy Where: The numbers xx and yyy correspond to the 3GPP-numbering scheme, n (n = A, B, C, ) denotes the family of S-UMTS specifications. A S-UMTS system is defined by the combination of a family of S-UMTS specifications and 3GPP specifications, as follows: If an S-UMTS specification exists i
35、t takes precedence over the corresponding 3GPP specification (if any). This precedence rule applies to any references in the corresponding 3GPP specifications. NOTE 2: Any references to 3GPP specifications within the S-UMTS specifications are not subject to this precedence rule. For example, an S-UM
36、TS specification may contain specific references to the corresponding 3GPP specification. If a S-UMTS specification does not exist, the corresponding 3GPP specification may or may not apply. The exact applicability of the complete list of 3GPP specifications shall be defined at a later stage. ETSI E
37、TSI TS 101 851-2-2 V2.1.1 (2008-01) 7 1 Scope The present document describes the characteristics of the Layer 1 multiplexing and channel coding used for family A of the satellite component of UMTS (S-UMTS-A). It is based on the FDD mode of UTRA defined by TS 125 211 2, TS 125 212 3, TS 125 213 4, TS
38、 125 214 5 and adapted for operation over satellite transponders. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made o
39、nly to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be pub
40、licly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure trace
41、ability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the method of access to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE:
42、While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited a
43、pplies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI TS 101 851-1-2: “Satellite Earth Stations and Systems (SES); Satellite Component of UMTS/IMT-2000; Part 1: Physical channels and mapping of transport channels into physical c
44、hannels; Sub-part 2: A-family (S-UMTS-A 25.211)“. 2 ETSI TS 125 211: “Universal Mobile Telecommunications System (UMTS); Physical channels and mapping of transport channels onto physical channels (FDD) (3G TS 25.211 version 3.3.0 Release 1999)“. 3 ETSI TS 125 212: “Universal Mobile Telecommunication
45、s System (UMTS); Multiplexing and channel coding (FDD) (3G TS 25.212 version 3.3.0 Release 1999)“. 4 ETSI TS 125 213: “Universal Mobile Telecommunications System (UMTS); Spreading and modulation (FDD) (3G TS 25.213 version 3.3.0 Release 1999)“. 5 ETSI TS 125 214: “Universal Mobile Telecommunications
46、 System (UMTS); Physical layer procedures (FDD) (3G TS 25.214 version 3.3.0 Release 1999)“. 6 ETSI TS 125 302: “Universal Mobile Telecommunications System (UMTS); Services provided by the Physical Layer (3G TS 25.302 version 3.5.0 Release 1999)“. ETSI ETSI TS 101 851-2-2 V2.1.1 (2008-01) 8 2.2 Infor
47、mative references 7 ITU-R Recommendation M.1457 (2006): “Detailed specifications of the radio interfaces of International Mobile Telecommunications-2000 (IMT-2000)“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions
48、 apply: Transmission Gap (TG): consecutive empty slots that have been obtained with a transmission time reduction method. The transmission gap can be contained in one or two consecutive radio frames Transmission Gap Length (TGL): number of consecutive empty slots that have been obtained with a trans
49、mission time reduction method. 0 TGL 14 3.2 Symbols For the purposes of the present document, the following symbols apply: x round towards , i.e. integer such that x x Z. The code blocks after segmentation are of the same size. The number of code blocks on TrCH i is denoted by Ci. If the number of bits input to the segmentation, Xi, is not a multiple of Ci, filler bits are added to the beginning of the first block. If turbo coding is selected and Xi6, and qj q (j - 1) Where g.c.d. is greatest common divisor. 4) Permute qj to ma
