1、 ETSI TS 138 212 V15.2.0 (2018-07) 5G; NR; Multiplexing and channel coding (3GPP TS 38.212 version 15.2.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 138 212 V15.2.0 (2018-07)13GPP TS 38.212 version 15.2.0 Release 15Reference DTS/TSGR-0138212vf20 Keywords 5G ETSI 650 Route des Lucioles F-06921
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9、tial or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these 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 potenti
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13、products, services or organizations associated with those trademarks. 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
14、GSM identities. These should be interpreted as being 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“, “s
15、hould“, “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 Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation.
16、 ETSI ETSI TS 138 212 V15.2.0 (2018-07)33GPP TS 38.212 version 15.2.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 7g33 Definitions, symbols and abbreviations . 7g33.1 Definitions 7g33.2 Symbols 7g33.3 Abbreviations
17、 . 7g34 Mapping to physical channels 8g34.1 Uplink . 8g34.2 Downlink 9g35 General procedures . 9g35.1 CRC calculation . 9g35.2 Code block segmentation and code block CRC attachment . 10g35.2.1 Polar coding 10g35.2.2 Low density parity check coding 10g35.3 Channel coding . 12g35.3.1 Polar coding 13g3
18、5.3.1.1 Interleaving . 13g35.3.1.2 Polar encoding . 14g35.3.2 Low density parity check coding 18g35.3.3 Channel coding of small block lengths . 25g35.3.3.1 Encoding of 1-bit information . 25g35.3.3.2 Encoding of 2-bit information . 25g35.3.3.3 Encoding of other small block lengths 25g35.4 Rate match
19、ing . 26g35.4.1 Rate matching for Polar code 26g35.4.1.1 Sub-block interleaving 26g35.4.1.2 Bit selection. 27g35.4.1.3 Interleaving of coded bits 28g35.4.2 Rate matching for LDPC code 29g35.4.2.1 Bit selection. 29g35.4.2.2 Bit interleaving 31g35.4.3 Rate matching for channel coding of small block le
20、ngths 31g35.5 Code block concatenation 32g36 Uplink transport channels and control information 32g36.1 Random access channel 32g36.2 Uplink shared channel 32g36.2.1 Transport block CRC attachment 32g36.2.2 LDPC base graph selection . 33g36.2.3 Code block segmentation and code block CRC attachment .
21、33g36.2.4 Channel coding of UL-SCH 33g36.2.5 Rate matching . 33g36.2.6 Code block concatenation . 33g36.2.7 Data and control multiplexing 33g36.3 Uplink control information . 43g36.3.1 Uplink control information on PUCCH 43g36.3.1.1 UCI bit sequence generation . 43g36.3.1.1.1 HARQ-ACK/SR only 43g36.
22、3.1.1.2 CSI only . 44g36.3.1.1.3 HARQ-ACK/SR and CSI 50g3ETSI ETSI TS 138 212 V15.2.0 (2018-07)43GPP TS 38.212 version 15.2.0 Release 156.3.1.2 Code block segmentation and CRC attachment 51g36.3.1.2.1 UCI encoded by Polar code . 51g36.3.1.2.2 UCI encoded by channel coding of small block lengths 51g3
23、6.3.1.3 Channel coding of UCI . 52g36.3.1.3.1 UCI encoded by Polar code . 52g36.3.1.3.2 UCI encoded by channel coding of small block lengths 52g36.3.1.4 Rate matching . 52g36.3.1.4.1 UCI encoded by Polar code . 52g36.3.1.4.2 UCI encoded by channel coding of small block lengths 53g36.3.1.5 Code block
24、 concatenation . 54g36.3.1.6 Multiplexing of coded UCI bits to PUCCH 54g36.3.2 Uplink control information on PUSCH 56g36.3.2.1 UCI bit sequence generation . 56g36.3.2.1.1 HARQ-ACK 56g36.3.2.1.2 CSI . 57g36.3.2.2 Code block segmentation and CRC attachment 59g36.3.2.2.1 UCI encoded by Polar code . 59g
25、36.3.2.2.2 UCI encoded by channel coding of small block lengths 59g36.3.2.3 Channel coding of UCI . 60g36.3.2.3.1 UCI encoded by Polar code . 60g36.3.2.3.2 UCI encoded by channel coding of small block lengths 60g36.3.2.4 Rate matching . 60g36.3.2.4.1 UCI encoded by Polar code . 60g36.3.2.4.1.1 HARQ-
26、ACK 60g36.3.2.4.1.2 CSI part 1 . 62g36.3.2.4.1.3 CSI part 2 . 64g36.3.2.4.2 UCI encoded by channel coding of small block lengths 66g36.3.2.4.2.1 HARQ-ACK 66g36.3.2.4.2.2 CSI part 1 . 66g36.3.2.4.2.3 CSI part 2 . 66g36.3.2.5 Code block concatenation . 67g36.3.2.6 Multiplexing of coded UCI bits to PUS
27、CH . 67g37 Downlink transport channels and control information . 67g37.1 Broadcast channel. 67g37.1.1 PBCH payload generation 67g37.1.2 Scrambling 68g37.1.3 Transport block CRC attachment 69g37.1.4 Channel coding . 69g37.1.5 Rate matching . 69g37.2 Downlink shared channel and paging channel . 69g37.
28、2.1 Transport block CRC attachment 69g37.2.2 LDPC base graph selection . 70g37.2.3 Code block segmentation and code block CRC attachment . 70g37.2.4 Channel coding . 70g37.2.5 Rate matching . 70g37.2.6 Code block concatenation . 70g37.3 Downlink control information 71g37.3.1 DCI formats 71g37.3.1.1
29、DCI formats for scheduling of PUSCH . 71g37.3.1.1.1 Format 0_0 71g37.3.1.1.2 Format 0_1 74g37.3.1.2 DCI formats for scheduling of PDSCH . 86g37.3.1.2.1 Format 1_0 86g37.3.1.2.2 Format 1_1 89g37.3.1.3 DCI formats for other purposes . 96g37.3.1.3.1 Format 2_0 96g37.3.1.3.2 Format 2_1 96g37.3.1.3.3 For
30、mat 2_2 96g37.3.1.3.4 Format 2_3 96g37.3.2 CRC attachment 97g37.3.3 Channel coding . 97g3ETSI ETSI TS 138 212 V15.2.0 (2018-07)53GPP TS 38.212 version 15.2.0 Release 157.3.4 Rate matching . 98g3Annex (informative): Change history . 99g3History 100g3ETSI ETSI TS 138 212 V15.2.0 (2018-07)63GPP TS 38.2
31、12 version 15.2.0 Release 15Foreword This Technical Specification has been produced by the 3rd Generation Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of
32、 the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document
33、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. ETSI ETSI TS 138 212 V15.2.0 (2018-07)73GPP TS 38.212 ver
34、sion 15.2.0 Release 151 Scope The present document specifies the coding, multiplexing and mapping to physical channels for 5G NR. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either spec
35、ific (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 of a reference to a 3GPP document (including a GSM document), a non-s
36、pecific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 38.201: “NR; Physical Layer General Description“ 3 3GPP TS 38.202: “NR; Services provided by the physical layer“ 4
37、 3GPP TS 38.211: “NR; Physical channels and modulation“ 5 3GPP TS 38.213: “NR; Physical layer procedures for control“ 6 3GPP TS 38.214: “NR; Physical layer procedures for data“ 7 3GPP TS 38.215: “NR; Physical layer measurements“ 8 3GPP TS 38.321: “NR; Medium Access Control (MAC) protocol specificati
38、on“ 9 3GPP TS 38.331: “NR; Radio Resource Control (RRC) protocol specification“ 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 1 and the following apply. A term defined in the present document takes
39、 precedence over the definition of the same term, if any, in 3GPP TR 21.905 1. 3.2 Symbols For the purposes of the present document, the following symbols apply: 3.3 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and the following apply. An abbrev
40、iation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 1. BCH Broadcast channel CBG Code block group CBGTI Code block group transmission information CORESET Control resource set CQI Channel quality indicator ETSI ETSI TS 138 21
41、2 V15.2.0 (2018-07)83GPP TS 38.212 version 15.2.0 Release 15CRC Cyclic redundancy check CRI CSI-RS resource indicator CSI Channel state information CSI-RS CSI reference signal DAI Downlink assignment index DCI Downlink control information DL Downlink DL-SCH Downlink shared channel DMRS Dedicated dem
42、odulation reference signal HARQ Hybrid automatic repeat request HARQ-ACK Hybrid automatic repeat request acknowledgement LDPC Low density parity check LI Layer indicator MCS Modulation and coding scheme OFDM Orthogonal frequency division multiplex PBCH Physical broadcast channel PCH Paging channel P
43、DCCH Physical downlink control channel PDSCH Physical downlink shared channel PMI Precoding matrix indicator PRB Physical resource block PRACH Physical random access channel PTRS Phase-tracking reference signal PUCCH Physical uplink control channel PUSCH Physical uplink shared channel RACH Random ac
44、cess channel RI Rank indicator RSRP Reference signal received power SFN System frame number SR Scheduling requestSRS Sounding reference signal SS Synchronisation signalSUL Supplementary uplink TPC Transmit power control TrCH Transport channel UCI Uplink control information UE User equipment UL Uplin
45、k UL-SCH Uplink shared channel VRB Virtual resource block ZP CSI-RS Zero power CSI-RS 4 Mapping to physical channels 4.1 Uplink Table 4.1-1 specifies the mapping of the uplink transport channels to their corresponding physical channels. Table 4.1-2 specifies the mapping of the uplink control channel
46、 information to its corresponding physical channel. Table 4.1-1 TrCH Physical Channel UL-SCH PUSCHRACH PRACHETSI ETSI TS 138 212 V15.2.0 (2018-07)93GPP TS 38.212 version 15.2.0 Release 15Table 4.1-2 Control information Physical Channel UCI PUCCH, PUSCH4.2 Downlink Table 4.2-1 specifies the mapping o
47、f the downlink transport channels to their corresponding physical channels. Table 4.2-2 specifies the mapping of the downlink control channel information to its corresponding physical channel. Table 4.2-1 TrCH Physical Channel DL-SCH PDSCHBCH PBCH PCH PDSCHTable 4.2-2 Control information Physical Ch
48、annel DCI PDCCH5 General procedures Data and control streams from/to MAC layer are encoded /decoded to offer transport and control services over the radio transmission link. Channel coding scheme is a combination of error detection, error correcting, rate matching, interleaving and transport channel
49、 or control information mapping onto/splitting from physical channels. 5.1 CRC calculation Denote the input bits to the CRC computation by 13210,.,Aaaaaa , and the parity bits by 13210,.,Lppppp , where A is the size of the input sequence and L is the number of parity bits. The parity bits are generated by one of the following cyclic generator polynomials: - () 13456710111417182324CRC24A+= DDDDDDDDDDDDDDgfor a CRC length 24=L ; - () 1562324CRC24B+= DDDDDDgfor a CRC length 24=L ; - () 12481213151720212324CRC24C+
