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Content for TS 25.212 Word version: 18.0.0

1… 3… 4.5… 4.7…

4.1 General 4.2 General coding/multiplexing of TrCHs 4.3 Transport format detection 4.3A Mapping of DL FET ACK/NACK bits 4.4 Compressed mode
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3 Definitions, symbols and abbreviations p. 10

3.1 Definitions p. 10

3.2 Symbols p. 12

3.3 Abbreviations p. 13

4 Multiplexing, channel coding and interleaving p. 14

4.1 General p. 14

4.2 General coding/multiplexing of TrCHs p. 14

4.2.0 Transport channel concatenation |R12| p. 19

4.2.1 CRC attachment p. 19

4.2.1.1 CRC Calculation p. 19

4.2.1.2 Relation between input and output of the CRC attachment block p. 20

4.2.2 Transport block concatenation and code block segmentation p. 20

4.2.2.1 Concatenation of transport blocks p. 20

4.2.2.2 Code block segmentation p. 20

4.2.3 Channel coding p. 21

4.2.3.1 Convolutional coding p. 22

4.2.3.2 Turbo coding p. 23

4.2.3.2.1 Turbo coder p. 23

4.2.3.2.2 Trellis termination for Turbo coder p. 23

4.2.3.2.3 Turbo code internal interleaver p. 24

4.2.3.3 Concatenation of encoded blocks p. 27

4.2.4 Radio frame size equalisation p. 27

4.2.5 1st interleaving p. 28

4.2.5.1 Void

4.2.5.2 1st interleaver operation p. 28

4.2.5.3 Relation between input and output of 1st interleaving in uplink p. 29

4.2.5.4 Relation between input and output of 1st interleaving in downlink p. 29

4.2.6 Radio frame segmentation p. 29

4.2.6.1 Relation between input and output of the radio frame segmentation block in uplink p. 30

4.2.6.2 Relation between input and output of the radio frame segmentation block in downlink p. 30

4.2.7 Rate matching p. 30

4.2.7.1 Determination of rate matching parameters in uplink p. 32

4.2.7.1.1 Determination of SF and number of PhCHs needed p. 32

4.2.7.2 Determination of rate matching parameters in downlink p. 35

4.2.7.2.1 Determination of rate matching parameters for fixed positions of TrCHs p. 35

4.2.7.2.1A Determination of rate matching parameters for pseudo-flexible positions of TrCHs |R12| p. 37

4.2.7.2.2 Determination of rate matching parameters for flexible positions of TrCHs p. 37

4.2.7.3 Bit separation and collection in uplink p. 39

4.2.7.3.1 Bit separation p. 41

4.2.7.3.2 Bit collection p. 41

4.2.7.4 Bit separation and collection in downlink p. 42

4.2.7.4.1 Bit separation p. 43

4.2.7.4.2 Bit collection p. 43

4.2.7.5 Rate matching pattern determination p. 44

4.2.8 TrCH multiplexing p. 45

4.2.9 Insertion of discontinuous transmission (DTX) indication bits p. 45

4.2.9.1 1st insertion of DTX indication bits p. 45

4.2.9.2 2nd insertion of DTX indication bits p. 46

4.2.10 Physical channel segmentation p. 47

4.2.10.1 Relation between input and output of the physical segmentation block in uplink p. 47

4.2.10.2 Relation between input and output of the physical segmentation block in downlink p. 47

4.2.11 2nd interleaving p. 47

4.2.11.1 2nd interleaving for Secondary CCPCH with 16QAM |R7| p. 48

4.2.12 Physical channel mapping p. 49

4.2.12.1 Uplink p. 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 |R12| p. 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 |R12| p. 49

4.2.12.2 Downlink p. 50

4.2.13 Restrictions on different types of CCTrCHs p. 50

4.2.13.1 Uplink Dedicated channel (DCH) p. 50

4.2.13.2 Random Access Channel (RACH) p. 51

4.2.13.3 Void

4.2.13.4 Downlink Dedicated Channel (DCH) p. 51

4.2.13.5 Void

4.2.13.6 Broadcast channel (BCH) p. 51

4.2.13.7 Forward access and paging channels (FACH and PCH) p. 51

4.2.13.8 High Speed Downlink Shared Channel (HS-DSCH) associated with a DCH |R5| p. 51

4.2.13.9 Enhanced Dedicated Channel (E-DCH) |R6| p. 52

4.2.14 Multiplexing of different transport channels into one CCTrCH, and mapping of one CCTrCH onto physical channels p. 52

4.2.14.1 Allowed CCTrCH combinations for one UE p. 53

4.2.14.1.1 Allowed CCTrCH combinations on the uplink p. 53

4.2.14.1.2 Allowed CCTrCH combinations on the downlink p. 53

4.3 Transport format detection p. 53

4.3.1 Blind transport format detection p. 54

4.3.1A Single transport format detection |R12| p. 54

4.3.2 Transport format detection based on TFCI p. 54

4.3.3 Coding of Transport-Format-Combination Indicator (TFCI) p. 55

4.3.4 Void

4.3.5 Mapping of TFCI words p. 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 p. 56

4.3.5.1A Mapping of TFCI word in normal mode in uplink when uplink DPCCH slot format is 5 |R12| p. 56

4.3.5.1.1 Mapping of TFCI bits for Secondary CCPCH with 16QAM |R7| p. 56

4.3.5.2 Mapping of TFCI word in compressed mode p. 56

4.3.5.2.1 Uplink compressed mode p. 57

4.3.5.2.2 Downlink compressed mode p. 57

4.3A Mapping of DL FET ACK/NACK bits |R12| p. 58

4.4 Compressed mode p. 59

4.4.1 Frame structure in the uplink p. 59

4.4.2 Frame structure types in the downlink p. 59

4.4.2A Frame structure in the downlink for F-DPCH |R6| p. 60

4.4.2B Frame structure in the downlink for F-TPICH |R11| p. 60

4.4.3 Transmission time reduction method p. 60

4.4.3.1 Void

4.4.3.2 Compressed mode by reducing the spreading factor by 2 p. 60

4.4.3.3 Compressed mode by higher layer scheduling p. 60

4.4.4 Transmission gap position p. 61

4.4.5 Transmission gap position for E-DCH |R6| p. 62

4.4.5.1 E-DPDCH Transmission Gap Position during Initial Transmissions p. 62

4.4.5.2 E-DPDCH Transmission Gap Position during Retransmissions p. 63

4.4.5.3 E-DPCCH Transmission Gap Position p. 63