|
TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
Multiplexing and channel coding (FDD)
(3GPP TS 25.212 version 15.0.0 Release 15)
---------------------- Page: 1 ----------------------
3GPP TS 25.212 version 15.0.0 Release 15 1 ETSI TS 125 212 V15.0.0 (2018-07)
Reference
RTS/TSGR-0625212vf00
Keywords
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 à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
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 document 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 within 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
If you find errors in the present document, please send your comment to one of the following services:
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 authorized 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.
© ETSI 2018.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3GPP TS 25.212 version 15.0.0 Release 15 2 ETSI TS 125 212 V15.0.0 (2018-07)
Intellectual 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 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 updates are available on the ETSI Web
server (https://ipr.etsi.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 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 to 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 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 references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
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 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
---------------------- Page: 3 ----------------------
3GPP TS 25.212 version 15.0.0 Release 15 3 ETSI TS 125 212 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 9
1 Scope . 10
2 References . 10
3 Definitions, symbols and abbreviations . 10
3.1 Definitions . 10
3.2 Symbols . 12
3.3 Abbreviations . 12
4 Multiplexing, channel coding and interleaving . 14
4.1 General . 14
4.2 General coding/multiplexing of TrCHs . 14
4.2.0 Transport channel concatenation . 19
4.2.1 CRC attachment . 19
4.2.1.1 CRC Calculation . 19
4.2.1.2 Relation between input and output of the CRC attachment block . 20
4.2.2 Transport block concatenation and code block segmentation . 20
4.2.2.1 Concatenation of transport blocks . 20
4.2.2.2 Code block segmentation . 20
4.2.3 Channel coding . 21
4.2.3.1 Convolutional coding . 22
4.2.3.2 Turbo coding . 22
4.2.3.2.1 Turbo coder . 22
4.2.3.2.2 Trellis termination for Turbo coder . 23
4.2.3.2.3 Turbo code internal interleaver . 23
4.2.3.3 Concatenation of encoded blocks . 27
4.2.4 Radio frame size equalisation . 27
st
4.2.5 1 interleaving . 27
4.2.5.1 Void. 27
st
4.2.5.2 1 interleaver operation . 27
st
4.2.5.3 Relation between input and output of 1 interleaving in uplink . 29
st
4.2.5.4 Relation between input and output of 1 interleaving in downlink . 29
4.2.6 Radio frame segmentation . 29
4.2.6.1 Relation between input and output of the radio frame segmentation block in uplink . 29
4.2.6.2 Relation between input and output of the radio frame segmentation block in downlink . 30
4.2.7 Rate matching . 30
4.2.7.1 Determination of rate matching parameters in uplink . 32
4.2.7.1.1 Determination of SF and number of PhCHs needed . 32
4.2.7.2 Determination of rate matching parameters in downlink . 35
4.2.7.2.1 Determination of rate matching parameters for fixed positions of TrCHs . 35
4.2.7.2.1A Determination of rate matching parameters for pseudo-flexible positions of TrCHs . 37
4.2.7.2.2 Determination of rate matching parameters for flexible positions of TrCHs . 37
4.2.7.3 Bit separation and collection in uplink . 39
4.2.7.3.1 Bit separation . 41
4.2.7.3.2 Bit collection . 41
4.2.7.4 Bit separation and collection in downlink . 42
4.2.7.4.1 Bit separation . 43
4.2.7.4.2 Bit collection . 43
4.2.7.5 Rate matching pattern determination . 44
4.2.8 TrCH multiplexing . 45
4.2.9 Insertion of discontinuous transmission (DTX) indication bits . 45
st
4.2.9.1 1 insertion of DTX indication bits . 45
nd
4.2.9.2 2 insertion of DTX indication bits . 46
ETSI
---------------------- Page: 4 ----------------------
3GPP TS 25.212 version 15.0.0 Release 15 4 ETSI TS 125 212 V15.0.0 (2018-07)
4.2.10 Physical channel segmentation . 47
4.2.10.1 Relation between input and output of the physical segmentation block in uplink . 47
4.2.10.2 Relation between input and output of the physical segmentation block in downlink . 47
nd
4.2.11 2 interleaving . 47
nd
4.2.11.1 2 interleaving for Secondary CCPCH with 16QAM . 48
4.2.12 Physical channel mapping . 49
4.2.12.1 Uplink . 49
4.2.12.1.1 UL_DPCH_10ms_Mode is not configured by higher layers, or, no compressed-mode
transmission gap overlaps with the first radio frame in the 20ms CI. 49
4.2.12.1.2 UL_DPCH_10ms_Mode is configured by higher layers, and, a compressed-mode
transmission gap overlaps with the first radio frame in 20ms CI . 49
4.2.12.2 Downlink . 50
4.2.13 Restrictions on different types of CCTrCHs . 50
4.2.13.1 Uplink Dedicated channel (DCH) . 50
4.2.13.2 Random Access Channel (RACH) . 50
4.2.13.3 Void. 51
4.2.13.4 Downlink Dedicated Channel (DCH) . 51
4.2.13.5 Void. 51
4.2.13.6 Broadcast channel (BCH) . 51
4.2.13.7 Forward access and paging channels (FACH and PCH) . 51
4.2.13.8 High Speed Downlink Shared Channel (HS-DSCH) associated with a DCH . 51
4.2.13.9 Enhanced Dedicated Channel (E-DCH) . 51
4.2.14 Multiplexing of different transport channels into one CCTrCH, and mapping of one CCTrCH onto
physical channels . 52
4.2.14.1 Allowed CCTrCH combinations for one UE . 52
4.2.14.1.1 Allowed CCTrCH combinations on the uplink . 52
4.2.14.1.2 Allowed CCTrCH combinations on the downlink . 53
4.3 Transport format detection . 53
4.3.1 Blind transport format detection . 53
4.3.1A Single transport format detection . 54
4.3.2 Transport format detection based on TFCI . 54
4.3.3 Coding of Transport-Format-Combination Indicator (TFCI) . 54
4.3.4 Void . 55
4.3.5 Mapping of TFCI words . 56
4.3.5.1 Mapping of TFCI word in normal mode in downlink, and in uplink when uplink DPCCH slot
format is not 5 . 56
4.3.5.1A Mapping of TFCI word in normal mode in uplink when uplink DPCCH slot format is 5 . 56
4.3.5.1.1 Mapping of TFCI bits for Secondary CCPCH with 16QAM . 56
4.3.5.2 Mapping of TFCI word in compressed mode . 56
4.3.5.2.1 Uplink compressed mode . 56
4.3.5.2.2 Downlink compressed mode . 57
4.3A Mapping of DL FET ACK/NACK bits . 57
4.4 Compressed mode . 58
4.4.1 Frame structure in the uplink . 58
4.4.2 Frame structure types in the downlink . 59
4.4.2A Frame structure in the downlink for F-DPCH . 59
4.4.2B Frame structure in the downlink for F-TPICH . 59
4.4.3 Transmission time reduction method . 59
4.4.3.1 Void. 60
4.4.3.2 Compressed mode by reducing the spreading factor by 2 . 60
4.4.3.3 Compressed mode by higher layer scheduling . 60
4.4.4 Transmission gap position . 60
4.4.5 Transmission gap position for E-DCH . 62
4.4.5.1 E-DPDCH Transmission Gap Position during Initial Transmissions. 62
4.4.5.2 E-DPDCH Transmission Gap Position during Retransmissions . 62
4.4.5.3 E-DPCCH Transmission Gap Position. 62
4.5 Coding for HS-DSCH . 62
4.5.1 CRC attachment for HS-DSCH . 64
4.5.1.1 CRC attachment method 1 for HS-DSCH . 64
4.5.1.2 CRC attachment method 2 for HS-DSCH . 65
4.5.1A Bit scrambling for HS-DSCH . 65
4.5.2 Code block segmentation for HS-DSCH . 65
ETSI
---------------------- Page: 5 ----------------------
3GPP TS 25.212 version 15.0.0 Release 15 5 ETSI TS 125 212 V15.0.0 (2018-07)
4.5.3 Channel coding for HS-DSCH. 65
4.5.4 Hybrid ARQ for HS-DSCH . 66
4.5.4.1 HARQ bit separation . 66
4.5.4.2 HARQ First Rate Matching Stage . 66
4.5.4.3 HARQ Second Rate Matching Stage . 67
4.5.4.4 HARQ bit collection . 68
4.5.5 Physical channel segmentation for HS-DSCH . 68
4.5.6 Interleaving for HS-DSCH . 69
4.5.7 Constellation re-arrangement for 16 QAM and 64QAM . 69
4.5.8 Physical channel mapping for HS-DSCH . 70
4.6 Coding for HS-SCCH type 1 . 70
4.6.1 Overview . 70
4.6.2 HS-SCCH information field mapping . 71
4.6.2.1 Redundancy and constellation version coding . 71
4.6.2.2 Modulation scheme mapping . 72
4.6.2.3 Channelization code-set mapping . 72
4.6.2.4 UE identity mapping . 73
4.6.2.5 HARQ process identifier mapping . 73
4.6.2.6 Transport block size index mapping . 73
4.6.3 Multiplexing of HS-SCCH information . 73
4.6.4 CRC attachment for HS-SCCH . 73
4.6.5 Channel coding for HS-SCCH . 73
4.6.6 Rate matching for HS-SCCH . 74
4.6.7 UE specific masking for HS-SCCH . 74
4.6.8 Physical channel mapping for HS-SCCH . 74
4.6A Coding for HS-SCCH type 2 . 74
4.6A.1 Overview . 74
4.6A.2 HS-SCCH Type 2 information field mapping . 75
4.6A.2.1 The first transmission . 75
4.6A.2.2 The second and the third transmissions . 76
4.6A.2.2.1 Special Information mapping . 76
4.6A.2.2.1.1 Transport-block size information mapping . 76
4.6A.2.2.1.2 Pointer to the previous transmission mapping . 76
4.6A.2.2.1.3 Second or third transmission mapping . 76
4.6A.2.2.2 Redundancy and Constellation Version mapping . 76
4.6A.2.2.3 Modulation scheme mapping . 77
4.6A.2.2.4 Channelization code-set mapping . 77
4.6A.2.2.5 UE identity mapping . 77
4.6A.3 Multiplexing of HS-SCCH Type 2 information. 77
4.6A.4 CRC attachment for HS-SCCH Type 2 . 77
4.6A.5 Channel coding for HS-SCCH Type 2 . 77
4.6A.6 Rate matching for HS-SCCH Type 2 . 77
4.6A.7 UE specific masking for HS-SCCH Type 2 . 77
4.6A.8 Physical channel mapping for HS-SCCH Type 2 . 77
4.6B Coding for HS-SCCH type 3 . 77
4.6B.1 Overview . 77
4.6B.2 HS-SCCH type 3 information field mapping . 79
4.6B.2.1 Redundancy and constellation version coding . 79
4.6B.2.2 Modulation scheme and number of transport blocks mapping . 80
4.6B.2.3 Channelization code-set mapping . 80
4.6B.2.4 UE identity mapping .
...