TS 136 211 - V15.11.0 - LTE; Evolved Universal Terrestrial ......2000/11/15 · ETSI 3GPP TS 36.211...

ETSI TS 136 211 V15.11.0 (2020-11)

LTE; Evolved Universal Terrestrial Radio Access (E-UTRA);

Physical channels and modulation (3GPP TS 36.211 version 15.11.0 Release 15)

TECHNICAL SPECIFICATION

ETSI

ETSI TS 136 211 V15.11.0 (2020-11)13GPP TS 36.211 version 15.11.0 Release 15

Reference RTS/TSGR-0136211vfb0

Keywords LTE

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Contents

Intellectual Property Rights ................................................................................................................................ 2

Legal notice ........................................................................................................................................................ 2

Modal verbs terminology .................................................................................................................................... 2

Foreword ............................................................................................................................................................. 9

1 Scope ...................................................................................................................................................... 10

2 References .............................................................................................................................................. 10

3 Symbols and abbreviations ..................................................................................................................... 11 3.1 Symbols ............................................................................................................................................................ 11 3.2 Abbreviations ................................................................................................................................................... 15

4 Frame structure ....................................................................................................................................... 15 4.1 Frame structure type 1 ...................................................................................................................................... 16 4.2 Frame structure type 2 ...................................................................................................................................... 17 4.3 Frame structure type 3 ...................................................................................................................................... 18

5 Uplink ..................................................................................................................................................... 20 5.1 Overview .......................................................................................................................................................... 20 5.1.1 Physical channels ........................................................................................................................................ 20 5.1.2 Physical signals ........................................................................................................................................... 20 5.2 Slot structure and physical resources................................................................................................................ 20 5.2.1 Resource grid .............................................................................................................................................. 20 5.2.2 Resource elements ...................................................................................................................................... 22 5.2.3 Resource blocks .......................................................................................................................................... 22 5.2.4 Narrowbands and widebands ...................................................................................................................... 22 5.2.5 Guard period for narrowband and wideband retuning ................................................................................ 23 5.3 Physical uplink shared channel ........................................................................................................................ 25 5.3.1 Scrambling .................................................................................................................................................. 25 5.3.2 Modulation .................................................................................................................................................. 26 5.3.2A Layer mapping ............................................................................................................................................ 27 5.3.2A.1 Layer mapping for transmission on a single antenna port ..................................................................... 27 5.3.2A.2 Layer mapping for spatial multiplexing ................................................................................................ 27 5.3.3 Transform precoding................................................................................................................................... 28 5.3.3A Precoding .................................................................................................................................................... 28 5.3.3A.1 Precoding for transmission on a single antenna port ............................................................................. 28 5.3.3A.2 Precoding for spatial multiplexing ........................................................................................................ 28 5.3.4 Mapping to physical resources.................................................................................................................... 31 5.4 Physical uplink control channel ........................................................................................................................ 36 5.4.1 PUCCH formats 1, 1a and 1b ..................................................................................................................... 37 5.4.2 PUCCH formats 2, 2a and 2b ..................................................................................................................... 40 5.4.2A PUCCH format 3 ........................................................................................................................................ 41 5.4.2B PUCCH format 4 ........................................................................................................................................ 43 5.4.2C PUCCH format 5 ........................................................................................................................................ 43 5.4.3 Mapping to physical resources.................................................................................................................... 44 5.4A Short Physical Uplink Control Channel ........................................................................................................... 47 5.4A.1 General ........................................................................................................................................................ 47 5.4A.2 SPUCCH formats 1,1a,1b ........................................................................................................................... 47 5.4A.2.1 Slot-SPUCCH ....................................................................................................................................... 47 5.4A.2.2 Subslot-SPUCCH .................................................................................................................................. 48 5.4A.3 SPUCCH format 3 ...................................................................................................................................... 49 5.4A.3.1 Slot-SPUCCH ....................................................................................................................................... 49 5.4A.4 SPUCCH format 4 ...................................................................................................................................... 49 5.4A.4.1 Slot-SPUCCH ....................................................................................................................................... 49 5.4A.4.2 Subslot-SPUCCH .................................................................................................................................. 50 5.4A.5 Mapping to physical resources.................................................................................................................... 50 5.5 Reference signals .............................................................................................................................................. 54

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5.5.1 Generation of the reference signal sequence ............................................................................................... 54

5.5.1.1 Base sequences of length RBsc3N or larger ............................................................................................ 55

5.5.1.2 Base sequences of length less than RBsc3N ............................................................................................ 56

5.5.1.3 Group hopping ...................................................................................................................................... 60 5.5.1.4 Sequence hopping ................................................................................................................................. 61 5.5.1.5 Determining virtual cell identity for sequence generation .................................................................... 61 5.5.2 Demodulation reference signal ................................................................................................................... 62 5.5.2.1 Demodulation reference signal for PUSCH .......................................................................................... 62 5.5.2.1.1 Reference signal sequence ............................................................................................................... 62 5.5.2.1.2 Mapping to physical resources ........................................................................................................ 66 5.5.2.1A Demodulation reference signal for PUSCH with sub-PRB allocations ................................................. 67 5.5.2.1A.1 Reference signal sequence using modulation schemes other than π/2-BPSK ................................. 67 5.5.2.1A.2 Reference signal sequence using π/2-BPSK modulation scheme .................................................... 68 5.5.2.1A.3 Group hopping ................................................................................................................................. 69 5.5.2.1A.4 Mapping to physical resources ........................................................................................................ 70 5.5.2.2 Demodulation reference signal for PUCCH .......................................................................................... 70 5.5.2.2.1 Reference signal sequence ............................................................................................................... 70 5.5.2.2.2 Mapping to physical resources ........................................................................................................ 72 5.5.2.3 Demodulation reference signal for SPUCCH........................................................................................ 72 5.5.2.3.1 Reference signal sequence ............................................................................................................... 72 5.5.2.3.2 Mapping to physical resources ........................................................................................................ 73 5.5.3 Sounding reference signal ........................................................................................................................... 75 5.5.3.1 Sequence generation.............................................................................................................................. 75 5.5.3.2 Mapping to physical resources .............................................................................................................. 75 5.5.3.3 Sounding reference signal subframe configuration ............................................................................... 78 5.6 SC-FDMA baseband signal generation ............................................................................................................ 79 5.6A SC-FDMA baseband signal generation for PUSCH using sub-PRB allocations .............................................. 80 5.6A.1 Modulation schemes other than π/2-BPSK ................................................................................................. 80 5.6A.2 Modulation scheme π/2-BPSK ................................................................................................................... 80 5.7 Physical random access channel ....................................................................................................................... 81 5.7.1 Time and frequency structure ..................................................................................................................... 81 5.7.2 Preamble sequence generation .................................................................................................................... 89 5.7.3 Baseband signal generation......................................................................................................................... 94 5.8 Modulation and upconversion .......................................................................................................................... 95

6 Downlink ................................................................................................................................................ 96 6.1 Overview .......................................................................................................................................................... 96 6.1.1 Physical channels ........................................................................................................................................ 96 6.1.2 Physical signals ........................................................................................................................................... 96 6.2 Slot structure and physical resource elements .................................................................................................. 97 6.2.1 Resource grid .............................................................................................................................................. 97 6.2.2 Resource elements ...................................................................................................................................... 98 6.2.3 Resource blocks .......................................................................................................................................... 99 6.2.3.1 Virtual resource blocks of localized type ............................................................................................ 100 6.2.3.2 Virtual resource blocks of distributed type ......................................................................................... 100 6.2.4 Resource-element groups (REGs) ............................................................................................................. 101 6.2.4A Enhanced Resource-Element Groups (EREGs) ........................................................................................ 102 6.2.4B Short Resource-Element Groups (SREGs) ............................................................................................... 102 6.2.5 Guard period for half-duplex FDD operation ........................................................................................... 102 6.2.6 Guard Period for TDD Operation ............................................................................................................. 103 6.2.7 Narrowbands and widebands .................................................................................................................... 103 6.2.8 Guard period for narrowband and wideband retuning .............................................................................. 104 6.3 General structure for downlink physical channels .......................................................................................... 104 6.3.1 Scrambling ................................................................................................................................................ 105 6.3.2 Modulation ................................................................................................................................................ 106 6.3.3 Layer mapping .......................................................................................................................................... 106 6.3.3.1 Layer mapping for transmission on a single antenna port ................................................................... 106 6.3.3.2 Layer mapping for spatial multiplexing .............................................................................................. 107 6.3.3.3 Layer mapping for transmit diversity .................................................................................................. 108 6.3.4 Precoding .................................................................................................................................................. 108 6.3.4.1 Precoding for transmission on a single antenna port ........................................................................... 108

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6.3.4.2 Precoding for spatial multiplexing using antenna ports with cell-specific reference signals .............. 109 6.3.4.2.1 Precoding without CDD ................................................................................................................ 109 6.3.4.2.2 Precoding for large delay CDD ..................................................................................................... 109 6.3.4.2.3 Codebook for precoding and CSI reporting ................................................................................... 110 6.3.4.3 Precoding for transmit diversity .......................................................................................................... 111 6.3.4.4 Precoding for spatial multiplexing using antenna ports with UE-specific reference signals............... 112 6.3.5 Mapping to resource elements .................................................................................................................. 113 6.4 Physical downlink shared channel .................................................................................................................. 113 6.4.1 Physical downlink shared channel for BL/CE UEs .................................................................................. 115 6.4.2 Slot/subslot-based physical downlink shared channel .............................................................................. 118 6.5 Physical multicast channel ............................................................................................................................. 120 6.6 Physical broadcast channel ............................................................................................................................. 120 6.6.1 Scrambling ................................................................................................................................................ 120 6.6.2 Modulation ................................................................................................................................................ 120 6.6.3 Layer mapping and precoding .................................................................................................................. 120 6.6.4 Mapping to resource elements .................................................................................................................. 120 6.7 Physical control format indicator channel ...................................................................................................... 122 6.7.1 Scrambling ................................................................................................................................................ 122 6.7.2 Modulation ................................................................................................................................................ 122 6.7.3 Layer mapping and precoding .................................................................................................................. 123 6.7.4 Mapping to resource elements .................................................................................................................. 123 6.8 Physical downlink control channel ................................................................................................................. 123 6.8.1 PDCCH formats ........................................................................................................................................ 123 6.8.2 PDCCH multiplexing and scrambling ...................................................................................................... 123 6.8.3 Modulation ................................................................................................................................................ 124 6.8.4 Layer mapping and precoding .................................................................................................................. 124 6.8.5 Mapping to resource elements .................................................................................................................. 124 6.8A Enhanced physical downlink control channel ................................................................................................ 125 6.8A.1 EPDCCH formats ..................................................................................................................................... 126 6.8A.2 Scrambling ................................................................................................................................................ 127 6.8A.3 Modulation ................................................................................................................................................ 127 6.8A.4 Layer mapping and precoding .................................................................................................................. 127 6.8A.5 Mapping to resource elements .................................................................................................................. 128 6.8B MTC physical downlink control channel ....................................................................................................... 129 6.8B.1 MPDCCH formats .................................................................................................................................... 129 6.8B.2 Scrambling ................................................................................................................................................ 130 6.8B.3 Modulation ................................................................................................................................................ 130 6.8B.4 Layer mapping and precoding .................................................................................................................. 130 6.8B.5 Mapping to resource elements .................................................................................................................. 130 6.8C Short physical downlink control channel (SPDCCH) .................................................................................... 133 6.8C.1 SPDCCH formats ...................................................................................................................................... 133 6.8C.2 Scrambling ................................................................................................................................................ 135 6.8C.3 Modulation ................................................................................................................................................ 135 6.8C.4 Layer mapping and precoding .................................................................................................................. 135 6.8C.5 Mapping to resource elements .................................................................................................................. 135 6.9 Physical hybrid ARQ indicator channel ......................................................................................................... 137 6.9.1 Modulation ................................................................................................................................................ 137 6.9.2 Resource group alignment, layer mapping and precoding ........................................................................ 138 6.9.3 Mapping to resource elements .................................................................................................................. 140 6.10 Reference signals ............................................................................................................................................ 142 6.10.1 Cell-specific Reference Signal (CRS)....................................................................................................... 142 6.10.1.1 Sequence generation............................................................................................................................ 142 6.10.1.2 Mapping to resource elements............................................................................................................. 143 6.10.2 MBSFN reference signals ......................................................................................................................... 145 6.10.2.1 Sequence generation............................................................................................................................ 145 6.10.2.1.1 Sequence generation for 15 kHz and 7.5 kHz subcarrier spacing ................................................. 145 6.10.2.1.2 Sequence generation for 1.25 kHz subcarrier spacing ................................................................... 145 6.10.2.2 Mapping to resource elements............................................................................................................. 146 6.10.2.2.1 Mapping to resource elements for 15 kHz and 7.5 kHz subcarrier spacing .................................. 146 6.10.2.2.2 Mapping to resource elements for 1.25 kHz .................................................................................. 147 6.10.3 UE-specific reference signals associated with PDSCH ............................................................................ 148 6.10.3.1 Sequence generation............................................................................................................................ 148

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6.10.3.2 Mapping to resource elements............................................................................................................. 149 6.10.3A Demodulation reference signals associated with EPDCCH, MPDCCH, or SPDCCH ............................. 157 6.10.3A.1 Sequence generation............................................................................................................................ 157 6.10.3A.2 Mapping to resource elements............................................................................................................. 158 6.10.4 Positioning reference signals .................................................................................................................... 160 6.10.4.1 Sequence generation............................................................................................................................ 160 6.10.4.2 Mapping to resource elements............................................................................................................. 161 6.10.4.3 Positioning reference signal subframe configuration .......................................................................... 163 6.10.5 CSI reference signals ................................................................................................................................ 163 6.10.5.1 Sequence generation............................................................................................................................ 164 6.10.5.2 Mapping to resource elements............................................................................................................. 164 6.10.5.3 CSI reference signal subframe configuration ...................................................................................... 173 6.11 Synchronization signals .................................................................................................................................. 173 6.11.1 Primary synchronization signal (PSS) ...................................................................................................... 173 6.11.1.1 Sequence generation............................................................................................................................ 173 6.11.1.2 Mapping to resource elements............................................................................................................. 174 6.11.2 Secondary synchronization signal (SSS) .................................................................................................. 174 6.11.2.1 Sequence generation............................................................................................................................ 175 6.11.2.2 Mapping to resource elements............................................................................................................. 176 6.11.3 Resynchronization signal (RSS) ............................................................................................................... 177 6.11.3.1 Sequence generation............................................................................................................................ 177 6.11.3.2 Mapping to resource elements............................................................................................................. 177 6.11A Discovery signal ............................................................................................................................................. 178 6.11B MTC wake-up signal (MWUS) ...................................................................................................................... 179 6.11B.1 Sequence generation ................................................................................................................................. 179 6.11B.2 Mapping to resource elements .................................................................................................................. 179 6.12 OFDM baseband signal generation ................................................................................................................ 179 6.13 Modulation and upconversion ........................................................................................................................ 180

7 Generic functions ................................................................................................................................. 182 7.1 Modulation mapper ........................................................................................................................................ 182 7.1.1 BPSK ........................................................................................................................................................ 182 7.1.2 QPSK ........................................................................................................................................................ 182 7.1.3 16QAM ..................................................................................................................................................... 182 7.1.4 64QAM ..................................................................................................................................................... 183 7.1.5 256QAM ................................................................................................................................................... 185 7.1.6 1024QAM ................................................................................................................................................. 186 7.2 Pseudo-random sequence generation.............................................................................................................. 186

8 Timing .................................................................................................................................................. 186 8.1 Uplink-downlink frame timing ....................................................................................................................... 186

9 Sidelink................................................................................................................................................. 189 9.1 Overview ........................................................................................................................................................ 189 9.1.1 Physical channels ...................................................................................................................................... 189 9.1.2 Physical signals ......................................................................................................................................... 189 9.1.3 Handling of simultaneous sidelink and uplink/downlink transmissions ................................................... 189 9.2 Slot structure and physical resources.............................................................................................................. 190 9.2.1 Resource grid ............................................................................................................................................ 190 9.2.2 Resource elements .................................................................................................................................... 190 9.2.3 Resource blocks ........................................................................................................................................ 191 9.2.4 Resource pool ........................................................................................................................................... 191 9.2.5 Guard period ............................................................................................................................................. 191 9.3 Physical Sidelink Shared Channel .................................................................................................................. 191 9.3.1 Scrambling ................................................................................................................................................ 191 9.3.2 Modulation ................................................................................................................................................ 192 9.3.3 Layer mapping .......................................................................................................................................... 192 9.3.4 Transform precoding................................................................................................................................. 192 9.3.5 Precoding .................................................................................................................................................. 192 9.3.6 Mapping to physical resources.................................................................................................................. 192 9.4 Physical Sidelink Control Channel ................................................................................................................. 193 9.4.1 Scrambling ................................................................................................................................................ 193 9.4.2 Modulation ................................................................................................................................................ 193

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9.4.3 Layer mapping .......................................................................................................................................... 193 9.4.4 Transform precoding................................................................................................................................. 193 9.4.5 Precoding .................................................................................................................................................. 193 9.4.6 Mapping to physical resources.................................................................................................................. 194 9.5 Physical Sidelink Discovery Channel............................................................................................................. 194 9.5.1 Scrambling ................................................................................................................................................ 194 9.5.2 Modulation ................................................................................................................................................ 194 9.5.3 Layer mapping .......................................................................................................................................... 194 9.5.4 Transform precoding................................................................................................................................. 194 9.5.5 Precoding .................................................................................................................................................. 194 9.5.6 Mapping to physical resources.................................................................................................................. 194 9.6 Physical Sidelink Broadcast Channel ............................................................................................................. 195 9.6.1 Scrambling ................................................................................................................................................ 195 9.6.2 Modulation ................................................................................................................................................ 195 9.6.3 Layer mapping .......................................................................................................................................... 195 9.6.4 Transform precoding................................................................................................................................. 195 9.6.5 Precoding .................................................................................................................................................. 195 9.6.6 Mapping to physical resources.................................................................................................................. 195 9.7 Sidelink Synchronization Signals ................................................................................................................... 196 9.7.1 Primary sidelink synchronization signal ................................................................................................... 196 9.7.1.1 Sequence generation............................................................................................................................ 196 9.7.1.2 Mapping to resource elements............................................................................................................. 196 9.7.2 Secondary sidelink synchronization signal ............................................................................................... 196 9.7.2.1 Sequence generation............................................................................................................................ 196 9.7.2.2 Mapping to resource elements............................................................................................................. 196 9.8 Demodulation reference signals ..................................................................................................................... 197 9.9 SC-FDMA baseband signal generation .......................................................................................................... 199 9.10 Timing ............................................................................................................................................................ 199

10 Narrowband IoT ................................................................................................................................... 200 10.0 General ........................................................................................................................................................... 200 10.0.1 Frame structure ......................................................................................................................................... 200 10.0.1.1 Frame structure type 1 ......................................................................................................................... 200 10.0.1.2 Frame structure type 2 ......................................................................................................................... 200 10.1 Uplink ............................................................................................................................................................. 200 10.1.1 Overview .................................................................................................................................................. 200 10.1.1.1 Physical channels ................................................................................................................................ 200 10.1.1.2 Physical signals ................................................................................................................................... 201 10.1.2 Slot structure and physical resources ........................................................................................................ 201 10.1.2.1 Resource grid ...................................................................................................................................... 201 10.1.2.2 Resource elements ............................................................................................................................... 202 10.1.2.3 Resource unit....................................................................................................................................... 202 10.1.3 Narrowband physical uplink shared channel ............................................................................................ 202 10.1.3.1 Scrambling .......................................................................................................................................... 202 10.1.3.2 Modulation .......................................................................................................................................... 203 10.1.3.3 Layer mapping .................................................................................................................................... 203 10.1.3.4 Transform precoding ........................................................................................................................... 203 10.1.3.5 Precoding ............................................................................................................................................ 203 10.1.3.6 Mapping to physical resources ............................................................................................................ 203 10.1.4 Demodulation reference signal ................................................................................................................. 204 10.1.4.1 Reference signal sequence .................................................................................................................. 204

10.1.4.1.1 Reference signal sequence for 1RUsc =N ....................................................................................... 204

10.1.4.1.2 Reference signal sequence for 1RUsc >N ....................................................................................... 205 10.1.4.1.3 Group hopping ............................................................................................................................... 206 10.1.4.2 Mapping to physical resources ............................................................................................................ 207 10.1.5 SC-FDMA baseband signal generation..................................................................................................... 208 10.1.6 Narrowband physical random-access channel .......................................................................................... 208 10.1.6.1 Time and frequency structure .............................................................................................................. 208 10.1.6.2 Baseband signal generation ................................................................................................................. 212 10.1.7 Modulation and upconversion................................................................................................................... 212 10.2 Downlink ........................................................................................................................................................ 212

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10.2.1 Overview .................................................................................................................................................. 212 10.2.1.1 Physical channels ................................................................................................................................ 212 10.2.1.2 Physical signals ................................................................................................................................... 212 10.2.2 Slot structure and physical resource elements .......................................................................................... 213 10.2.2.1 Resource grid ...................................................................................................................................... 213 10.2.2.2 Resource elements ............................................................................................................................... 213 10.2.2.3 Guard period for half-duplex FDD operation ...................................................................................... 213 10.2.2.4 Guard period for TDD operation ......................................................................................................... 213 10.2.3 Narrowband physical downlink shared channel ....................................................................................... 213 10.2.3.1 Scrambling .......................................................................................................................................... 213 10.2.3.2 Modulation .......................................................................................................................................... 213 10.2.3.3 Layer mapping and precoding ............................................................................................................. 214 10.2.3.4 Mapping to resource elements............................................................................................................. 214 10.2.4 Narrowband physical broadcast channel................................................................................................... 215 10.2.4.1 Scrambling .......................................................................................................................................... 215 10.2.4.2 Modulation .......................................................................................................................................... 215 10.2.4.3 Layer mapping and precoding ............................................................................................................. 216 10.2.4.4 Mapping to resource elements............................................................................................................. 216 10.2.5 Narrowband physical downlink control channel....................................................................................... 216 10.2.5.1 NPDCCH formats ............................................................................................................................... 216 10.2.5.2 Scrambling .......................................................................................................................................... 217 10.2.5.3 Modulation .......................................................................................................................................... 217 10.2.5.4 Layer mapping and precoding ............................................................................................................. 217 10.2.5.5 Mapping to resource elements............................................................................................................. 217 10.2.6 Narrowband reference signal (NRS) ......................................................................................................... 218 10.2.6.1 Sequence generation............................................................................................................................ 220 10.2.6.2 Mapping to resource elements............................................................................................................. 220 10.2.6A Narrowband positioning reference signal (NPRS) .................................................................................... 222 10.2.6A.1 Sequence generation............................................................................................................................ 222 10.2.6A.2 Mapping to resource elements............................................................................................................. 223 10.2.6A.3 NPRS subframe configuration ............................................................................................................ 224 10.2.6B Narrowband wake up signal (NWUS) ...................................................................................................... 225 10.2.6B.1 Sequence generation............................................................................................................................ 225 10.2.6B.2 Mapping to resource elements............................................................................................................. 225 10.2.7 Synchronization signals ............................................................................................................................ 226 10.2.7.1 Narrowband primary synchronization signal (NPSS) ......................................................................... 226 10.2.7.1.1 Sequence generation ...................................................................................................................... 226 10.2.7.1.2 Mapping to resource elements ....................................................................................................... 226 10.2.7.2 Narrowband secondary synchronization signal (NSSS) ...................................................................... 227 10.2.7.2.1 Sequence generation ...................................................................................................................... 227 10.2.7.2.2 Mapping to resource elements ....................................................................................................... 227 10.2.8 OFDM baseband signal generation ........................................................................................................... 228 10.2.9 Modulation and upconversion................................................................................................................... 229

Annex A (informative): Change history ............................................................................................. 230

History ............................................................................................................................................................ 241

3GPP TS 36.211 version 15.11.0 Release 15 9 ETSI TS 136 211 V15.11.0 (2020-11)

ETSI

Foreword 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 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 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

1 Scope The present document describes the physical channels for evolved UTRA.

2 References The following documents contain provisions which, through reference in this text, 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 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 TR 21.905: "Vocabulary for 3GPP Specifications".

[2] 3GPP TS 36.201: "Evolved Universal Terrestrial Radio Access (E-UTRA); LTE physical layer; General description".

[3] 3GPP TS 36.212: "Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding".

[4] 3GPP TS 36.213: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures".

[5] 3GPP TS 36.214: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer; Measurements".

[6] 3GPP TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) radio transmission and reception".

[7] 3GPP TS 36.101: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception".

[8] 3GPP TS 36.321, "Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification".

[9] 3GPP TS 36.331, "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC) Protocol specification"

[10] 3GPP TS 36.304, "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode"

[11] 3GPP TS 37.213: "Physical layer procedures for shared spectrum channel access"

[12] 3GPP TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2"


ETSI

3 Symbols and abbreviations

3.1 Symbols For the purposes of the present document, the following symbols apply:

),( lk Resource element with frequency-domain index k and time-domain index l )(

,plka Value of resource element ),( lk [for antenna port p ]

D Matrix for supporting cyclic delay diversity

RAD Density of random access opportunities per radio frame

0f Carrier frequency

RAf PRACH resource frequency index within the considered time-domain location PRACH

hopPRB,f PRACH frequency hopping offset, expressed as a number of resource blocks

tNPDCCHStarl Start symbol in slot 0 for NPDCCH

tNPDSCHStarl Start symbol in slot 0 for NPDSCH PSBCHscM Bandwidth for PSBCH transmission, expressed as a number of subcarriers PSBCHRBM Bandwidth for PSBCH transmission, expressed as a number of resource blocks PSCCHscM Bandwidth for PSCCH transmission, expressed as a number of subcarriers PSCCHRBM Bandwidth for PSCCH transmission, expressed as a number of resource blocks PSDCHscM Bandwidth for PSDCH transmission, expressed as a number of subcarriers PSDCHRBM Bandwidth for PSDCH transmission, expressed as a number of resource blocks PSSCHscM Scheduled bandwidth for PSSCH transmission, expressed as a number of subcarriers PSSCHRBM Scheduled bandwidth for PSSCH transmission, expressed as a number of resource blocks PUSCHscM Scheduled bandwidth for uplink transmission, expressed as a number of subcarriers PUSCHRBM Scheduled bandwidth for uplink transmission, expressed as a number of resource blocks NPUSCHrepM Scheduled number of repetitions of a NPUSCH transmission NPDSCHrepM Scheduled number of repetitions of a NPDSCH transmission

NPUSCHscM Scheduled bandwidth for uplink NPUSCH transmission, expressed as a number of subcarriers NPUSCHidenticalM Number of repetitions of identical slots for NPUSCH (q)Mbit Number of coded bits to transmit on a physical channel [for codeword q ] (q)M symb Number of modulation symbols to transmit on a physical channel [for codeword q ]

layersymbM Number of modulation symbols to transmit per layer for a physical channel

apsymbM Number of modulation symbols to transmit per antenna port for a physical channel RUscM Number of consecutive subcarriers in an UL resource unit for PUSCH sub-PRB allocation ULslotsM Number of slots in an UL resource unit for PUSCH sub-PRB allocation ULsymbM Number of SC-FDMA symbols in an uplink slot for PUSCH sub-PRB allocation

Number of subcarriers in the frequency domain for PUSCH sub-PRB allocation �seq

RU Number of reference signal sequences available for the UL resource unit size for PUSCH sub-PRB allocation

�� Number of scheduled UL resource units for PUSCH sub-PRB allocation N A constant equal to 2048 for kHz 15=Δf , 4096 for kHz 5.7=Δf and 8192 for kHz 75.3=Δf

lN ,CP Downlink cyclic prefix length for OFDM symbol l in a slot

CSN Cyclic shift value used for random access preamble generation


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(1)csN Number of cyclic shifts used for PUCCH formats 1/1a/1b in a resource block with a mix of

formats 1/1a/1b and 2/2a/2b (2)RBN Bandwidth available for use by PUCCH formats 2/2a/2b, expressed in multiples of

RBscN

HORBN The offset used for PUSCH frequency hopping, expressed in number of resource blocks (set by

higher layers) cellIDN Physical layer cell identity NcellIDN Narrowband physical layer cell identity MBSFNIDN MBSFN area identity SLIDN Physical layer sidelink synchronization identity PRSIDN Positioning reference signal identity DLRBN Downlink bandwidth configuration, expressed in multiples of

RBscN

DL min,RBN Smallest downlink bandwidth configuration, expressed in multiples of

RBscN

DL max,RBN Largest downlink bandwidth configuration, expressed in multiples of

RBscN

ULRBN Uplink bandwidth configuration, expressed in multiples of

RBscN

ULmin,RBN Smallest uplink bandwidth configuration, expressed in multiples of

RBscN

ULmax,RBN Largest uplink bandwidth configuration, expressed in multiples of

RBscN

SLRBN Sidelink bandwidth configuration, expressed in multiples of

RBscN

�� Duration of RSS measured in subframes

SFN Number of scheduled subframes for NPDSCH transmission NPSSsymbN Number of symbols for NPSS in a subframe

NSSSsymbN Number of symbols for NSSS in a subframe

RUscN Number of consecutive subcarriers in an UL resource unit for NB-IoT RUseqN Number of reference signal sequences available for the UL resource unit size

RUN Number of scheduled UL resource units for NB-IoT ULNBN Total number of uplink narrowbands ULWBN Total number of uplink widebands ULscN Number of subcarriers in the frequency domain for NB-IoT

accN Number of consecutive absolute subframes over which the scrambling sequence stays the same PUSCHabsN Total number of absolute subframes a PUSCH with repetition spans expressed as a number of

absolute subframes PUSCHrepN Number of repetitions of a PUSCH transmission

ULch,NBN Number of consecutive absolute subframes over which PUCCH or PUSCH stays at the same

narrowband before hopping to another narrowband, expressed as a number of absolute subframes PUSCH

hopNB,f Narrowband offset between one narrowband and the next narrowband a PUSCH hops to,

expressed as a number of uplink narrowbands PUCCHabsN Total number of absolute subframes a PUCCH with repetition spans, expressed as a number of

absolute subframes PUCCHrepN Number of repetitions of a PUCCH transmission

PRACHrepN Number of PRACH repetitions per preamble transmission attempt RAsfN Number of subframes allowed for preamble transmission within a 1024-frame interval PRACHstartN PRACH starting subframe periodicity NPRACHrepN Number of NPRACH repetitions per preamble transmission attempt


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NPRACHperiodN NPRACH resource periodicity

NPRACHscoffsetN Frequency location of the first sub-carrier allocated to NPRACH NPRACH

scN Number of sub-carriers allocated to NPRACH NPRACHsc_cont N Number of starting sub-carriers allocated for UE initiated random access NPRACHstartN NPRACH starting subframe NPRACHMSG3N Fraction for starting subcarrier index for UE support for multi-tone msg3 transmission

periodgap,N Periodicity for NPDSCH/NPDCCH gaps

durationgap,N Duration for NPDSCH/NPDCCH gaps

thresholdgap,N Threshold for applying NPDDCH/NPDCCH gaps

DLNBN Total number of downlink narrowbands DLWBN Total number of downlink widebands PDSCHabsN Total number of absolute subframes a PDSCH with repetition spans, expressed as a number of

absolute subframes PDSCHrepN Number of repetitions of a PDSCH transmission

DLch,NBN Number of consecutive absolute subframes over which MPDCCH or PDSCH stays at the same

narrowband before hopping to another narrowband, expressed as a number of absolute subframes DLch,hopNB,N Number of narrowbands over which MPDCCH or PDSCH frequency hops

DLhopNB,f Narrowband offset between one narrowband and the next narrowband an MPDCCH or PDSCH

hops to, expressed as a number of downlink narrowbands BR-SIB1

PDSCHN Number of times a PDSCH carrying SIB1-BR is transmitted over 8 radio frames MPDCCHabsN Total number of absolute subframes a MPDCCH with repetition spans, expressed as a number of

absolute subframes MPDCCHrepN Number of repetitions of a MPDCCH transmission

MPDCCHssabs,N Total number of absolute subframes a MPDCCH search space with maximum repetition level

spans, expressed as a number of absolute subframes MPDCCH

ssrep,N Maximum repetition level of a MPDCCH search space MPDCCHECCEN Number of ECCEs in a subframe for one MPDCCH DLsymbN Number of OFDM symbols in a downlink slot

ULsymbN Number of SC-FDMA symbols in an uplink slot

retunesymbN Number of symbols in a guard period for narrowband or wideband retuning

ULslotsN Number of consecutive slots in an UL resource unit for NB-IoT SLsymbN Number of SC-FDMA symbols in a sidelink slot

RBscN Resource block size in the frequency domain, expressed as a number of subcarriers

sbN Number of sub-bands for PUSCH frequency-hopping with predefined hopping pattern sbRBN Size of each sub-band for PUSCH frequency-hopping with predefined hopping pattern, expressed

as a number of resource blocks RAscN Size of narrow-band random-access resource in number of subcarriers

SPN Number of downlink to uplink switch points within the radio frame PUCCHRSN Number of reference symbols per slot for PUCCH SPUCCHRSN Number of reference symbols per subslot or per slot for SPUCCH

TAN Timing offset between uplink and downlink radio frames at the UE, expressed in units of sT

offsetTA N Fixed timing advance offset, expressed in units of sT


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SLTA,N Timing offset between sidelink and timing reference frames at the UE, expressed in units of sT )~,1(

PUCCHpn Resource index for PUCCH formats 1/1a/1b

)~,2(PUCCH

pn Resource index for PUCCH formats 2/2a/2b )~,3(

PUCCHpn Resource index for PUCCH format 3

PDCCHn Number of PDCCHs present in a subframe

PRBn Physical resource block number RAPRBn First physical resource block occupied by PRACH resource considered RA

offset PRBn First physical resource block available for PRACH

��,�� Lowest PRB number of RSS RAscn Subcarrier occupied by NPRACH resource considered

VRBn Virtual resource block number

RNTIn Radio network temporary identifier SAIDn Sidelink group destination identity

fn System frame number

sn Slot number within a radio frame abssfn Absolute subframe number RAsfn Index for subframes allowed for preamble transmission

�� Starting frame offset of RSS in each RSS period P Number of antenna ports used for transmission of a channel p Antenna port number

�� Period of RSS measured in frames q Codeword number

RAr Index for PRACH versions with same preamble format and PRACH density Qm Modulation order: 1 for π/2-BPSK, 2 for QPSK, 4 for 16QAM, 6 for 64QAM and 8 for 256QAM

transmissions

( )ts pl )( Time-continuous baseband signal for antenna port p and OFDM symbol l in a slot )0(

RAt Radio frame indicator index of PRACH opportunity )1(

RAt Half frame index of PRACH opportunity within the radio frame )2(

RAt Uplink subframe number for start of PRACH opportunity within the half frame

fT Radio frame duration

sT Basic time unit

slotT Slot duration W Precoding matrix for downlink spatial multiplexing

PRACHβ Amplitude scaling for PRACH

NPRACHβ Amplitude scaling for NPRACH

PUCCHβ Amplitude scaling for PUCCH

PUSCHβ Amplitude scaling for PUSCH

NPUSCHβ Amplitude scaling for NPUSCH

SPUCCHβ Amplitude scaling for SPUCCH

SRSβ Amplitude scaling for sounding reference symbols fΔ Subcarrier spacing

RAfΔ Subcarrier spacing for the random access preamble υ Number of transmission layers


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3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 [1].

CCE Control Channel Element CDD Cyclic Delay Diversity CRS Cell-specific Reference Signal CSI Channel-State Information DCI Downlink Control Information DM-RS Demodulation Reference Signal ECCE Enhanced Control Channel Element EPDCCH Enhanced Physical Downlink Control CHannel EREG Enhanced Resource-Element Group MPDCCH MTC Physical Downlink Control Channel MWUS MTC Wake-Up Signal NCCE Narrowband Control Channel Element NPBCH Narrowband Physical Broadcast CHannel NPDCCH Narrowband Physical Downlink Control CHannel NPDSCH Narrowband Physical Downlink Shared CHannel NPRACH Narrowband Physical Random Access CHannel NPUSCH Narrowband Physical Uplink Shared CHannel NPRS Narrowband Positioning Reference Signal NPSS Narrowband Primary Synchronization Signal NSSS Narrowband Secondary Synchronization Signal NRS Narrowband Reference Signal PBCH Physical Broadcast CHannel PCFICH Physical Control Format Indicator CHannel PDCCH Physical Downlink Control CHannel PDSCH Physical Downlink Shared CHannel PHICH Physical Hybrid-ARQ Indicator CHannel PMCH Physical Multicast CHannel PRACH Physical Random Access CHannel PRB Physical Resource Block PRG Precoding Resource Block Group PRS Positioning Reference Signal PSBCH Physical Sidelink Broadcast CHannel PSCCH Physical Sidelink Control CHannel PSDCH Physical Sidelink Discovery CHannel PSSCH Physical Sidelink Shared CHannel PUCCH Physical Uplink Control CHannel PUSCH Physical Uplink Shared CHannel REG Resource-Element Group RSS Resynchronization Signal SCCE Short Control Channel Element SCG Secondary Cell Group SPDCCH Short Physical Downlink Control CHannel SPUCCH Short Physical Uplink Control CHannel SREG Short Resource-Element Group SRS Sounding Reference Signal VRB Virtual Resource Block

4 Frame structure Throughout this specification, unless otherwise noted, the size of various fields in the time domain is expressed as a number of time units ( )2048150001s ×=T seconds.

Downlink, uplink and sidelink transmissions are organized into radio frames with ms 10307200 sf =×= TT duration. Three radio frame structures are supported:


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- Type 1, applicable to FDD only,

- Type 2, applicable to TDD only,

- Type 3, applicable to LAA secondary cell operation only.

NOTE: LAA secondary cell operation only applies to frame structure type 3.

Transmissions in multiple cells can be aggregated where up to 31 secondary cells can be used in addition to the primary cell. Unless otherwise noted, the description in this specification applies to each of the up to 32 serving cells. In case of multi-cell aggregation, different frame structures can be used in the different serving cells.

4.1 Frame structure type 1 Frame structure type 1 is applicable to both full duplex and half duplex FDD only. Each radio frame is

ms 10307200 sf =⋅= TT long and consists of 10 subframes of length ms 107203 s =⋅T , numbered from 0 to 9.

Subframe i in frame fn has an absolute subframe number inn += fabssf 10 where fn is the system frame number.

For subframes using kHz 5.7=Δf or kHz 15=Δf , subframe i is defined as two slots, i2 and 12 +i , of length ms 5.015360 sslot =⋅= TT each.

For subframes using kHz 25.1=Δf , subframe i is defined as one slot, i2 , of length ms 1T07203 sslot =⋅=T .

For subframes using kHz 15=Δf , the subframe can further be divided into six subslots according to Table 4.1-1. Downlink subslot pattern 1 is applied if the number of symbols used for PDCCH is equal to 1 or 3 and downlink subslot

pattern 2 is applied if the number of symbols used for PDCCH is equal to 2. For system bandwidths 10DLRB ≤N , subslot transmission is not supported in case 4 symbols used for PDCCH.

For FDD, 10 subframes, 20 slots, or up to 60 subslots are available for downlink transmission and 10 subframes, 20 slots, or up to 60 subslots are available for uplink transmissions in each 10 ms interval. Uplink and downlink transmissions are separated in the frequency domain. In half-duplex FDD operation, the UE cannot transmit and receive at the same time while there are no such restrictions in full-duplex FDD.

Figure 4.1-1: Frame structure type 1

Table 4.1-1: SC-FDMA/OFDM symbols in different subslots of subframe i

Subslot number 0 1 2 3 4 5 Slot number 2i 2i+1

Uplink subslot pattern 0, 1, 2 3, 4 5, 6 0, 1 2, 3 4, 5, 6 Downlink subslot pattern 1 0, 1, 2 3, 4 5, 6 0, 1 2, 3 4, 5, 6 Downlink subslot pattern 2 0, 1 2, 3, 4 5, 6 0, 1 2, 3 4, 5, 6


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4.2 Frame structure type 2

Frame structure type 2 is applicable to TDD only. Each radio frame of length ms 10307200 sf =⋅= TT consists of two half-frames of length ms 5153600 s =⋅T each. Each half-frame consists of five subframes of length ms 107203 s =⋅T . Each subframe i is defined as two slots, i2 and 12 +i , of length ms 5.015360 sslot =⋅= TT each. Subframe i in frame

fn has an absolute subframe number inn += fabssf 10 where fn is the system frame number.

The uplink-downlink configuration in a cell may vary between frames and controls in which subframes uplink or downlink transmissions may take place in the current frame. The uplink-downlink configuration in the current frame is obtained according to Clause 13 in [4].

The supported uplink-downlink configurations are listed in Table 4.2-2 where, for each subframe in a radio frame, "D" denotes a downlink subframe reserved for downlink transmissions, "U" denotes an uplink subframe reserved for uplink transmissions and "S" denotes a special subframe with the three fields DwPTS, GP and UpPTS. The length of DwPTS and UpPTS is given by Table 4.2-1 subject to the total length of DwPTS, GP and UpPTS being equal to

ms 107203 s =⋅T where X is the number of additional SC-FDMA symbols in UpPTS provided by the higher layer parameter srs-UpPtsAdd if configured otherwise X is equal to 0. The UE is not expected to be configured with 2 additional UpPTS SC-FDMA symbols for special subframe configurations {3, 4, 7, 8} for normal cyclic prefix in downlink and special subframe configurations {2, 3, 5, 6} for extended cyclic prefix in downlink and 4 additional UpPTS SC-FDMA symbols for special subframe configurations {1, 2, 3, 4, 6, 7, 8} for normal cyclic prefix in downlink and special subframe configurations {1, 2, 3, 5, 6} for extended cyclic prefix in downlink.

Uplink-downlink configurations with both 5 ms and 10 ms downlink-to-uplink switch-point periodicity are supported.

- In case of 5 ms downlink-to-uplink switch-point periodicity, the special subframe exists in both half-frames.

- In case of 10 ms downlink-to-uplink switch-point periodicity, the special subframe exists in the first half-frame only.

Subframes 0 and 5 and DwPTS are always reserved for downlink transmission. For special subframe configurations 1, 2, 3, 4, 6, 7 and 8, DwPTS is split into two parts, of which the first part is a slot and the second part is of X-symbol duration within the second slot. Downlink subframes, downlink slots in the downlink subframe and DwPTS, and the X–symbol duration in the second slot of DwPTS are available for downlink transmission. The X-symbol transmission opportunity is only available for special subframe configuration 3,4 and 8.

UpPTS and the subframe immediately following the special subframe are always reserved for uplink transmission. Uplink subframes, uplink slots and UpPTS with special subframe configuration 10 are available for uplink transmission. Note that UpPTS with special subframe configuration 10 are not available for SPUCCH transmission.

In case multiple cells are aggregated, the UE may assume that the guard period of the special subframe in the cells using frame structure type 2 have an overlap of at least s1456 T⋅ .

In case multiple cells with different uplink-downlink configurations in the current radio frame are aggregated and the UE is not capable of simultaneous reception and transmission in the aggregated cells, the following constraints apply:

- if the subframe in the primary cell is a downlink subframe, the UE shall not transmit any signal or channel on a secondary cell in the same subframe

- if the subframe in the primary cell is an uplink subframe, the UE is not expected to receive any downlink transmissions on a secondary cell in the same subframe

- if the subframe in the primary cell is a special subframe and the same subframe in a secondary cell is a downlink subframe, the UE is not expected to receive PDSCH/EPDCCH/PMCH/PRS transmissions in the secondary cell in the same subframe, and the UE is not expected to receive any other signals on the secondary cell in OFDM symbols that overlaps with the guard period or UpPTS in the primary cell.


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Figure 4.2-1: Frame structure type 2 (for 5 ms switch-point periodicity)

Table 4.2-1: Configuration of special subframe (lengths of DwPTS/GP/UpPTS)

Special subframe

configuration

Normal cyclic prefix in downlink Extended cyclic prefix in downlink DwPTS UpPTS DwPTS UpPTS

Normal cyclic

prefix in uplink

Extended cyclic prefix

in uplink Normal cyclic prefix in uplink

Extended cyclic prefix in uplink

0 s6592 T⋅

( ) s1 X 2192 T+ ⋅ ⋅ ( ) s1 X 2560 T+ ⋅ ⋅

s7680 T⋅

( ) s1 X 2192 T+ ⋅ ⋅ ( ) s1 X 2560 T+ ⋅ ⋅ 1 s19760 T⋅ s20480 T⋅ 2 s21952 T⋅ s23040 T⋅ 3 s24144 T⋅ s25600 T⋅ 4 s26336 T⋅ s7680 T⋅

( ) s2 X 2192 T+ ⋅ ⋅ ( ) s2 X 2560 T+ ⋅ ⋅ 5 s6592 T⋅

( ) s2 X 2192 T+ ⋅ ⋅ ( ) s2 X 2560 T+ ⋅ ⋅

s20480 T⋅ 6 s19760 T⋅ s23040 T⋅ 7 s21952 T⋅ s12800 T⋅ 8 s24144 T⋅ - - - 9 s13168 T⋅ - - - 10 s13168 T⋅ s13152 T⋅ s12800 T⋅ - - -

Table 4.2-2: Uplink-downlink configurations

Uplink-downlink configuration

Downlink-to-Uplink Switch-point periodicity

Subframe number 0 1 2 3 4 5 6 7 8 9

0 5 ms D S U U U D S U U U 1 5 ms D S U U D D S U U D 2 5 ms D S U D D D S U D D 3 10 ms D S U U U D D D D D 4 10 ms D S U U D D D D D D 5 10 ms D S U D D D D D D D 6 5 ms D S U U U D S U U D

4.3 Frame structure type 3 Frame structure type 3 is applicable to LAA secondary cell operation with normal cyclic prefix only. Each radio frame is ms 10307200 sf =⋅= TT long and consists of 20 slots of length ms 5.0T15360 sslot =⋅=T , numbered from 0 to 19. A subframe is defined as two consecutive slots where subframe i consists of slots i2 and 12 +i .


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The 10 subframes within a radio frame are available for downlink or uplink transmissions. Downlink transmissions occupy one or more consecutive subframes, starting anywhere within a subframe and ending with the last subframe either fully occupied or following one of the DwPTS durations in Table 4.2-1. Uplink transmisisons occupy one or more consecutive subframes.


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5 Uplink

5.1 Overview The smallest resource unit for uplink transmissions is denoted a resource element and is defined in clause 5.2.2.

5.1.1 Physical channels

An uplink physical channel corresponds to a set of resource elements carrying information originating from higher layers and is the interface defined between 3GPP TS 36.212 [3] and the present document 3GPP TS 36.211. The following uplink physical channels are defined:

- Physical Uplink Shared Channel, PUSCH

- Physical Uplink Control Channel, PUCCH

- Short Physical Uplink Control Channel, SPUCCH

- Physical Random Access Channel, PRACH

5.1.2 Physical signals

An uplink physical signal is used by the physical layer but does not carry information originating from higher layers. The following uplink physical signals are defined:

- Reference signal

5.2 Slot structure and physical resources

5.2.1 Resource grid

The transmitted signal in each slot is described by one or several resource grids of RBscULRB NN subcarriers and

ULsymbN

SC-FDMA symbols. The resource grid is illustrated in Figure 5.2.1-1. The quantity ULRBN depends on the uplink

transmission bandwidth configured in the cell and shall fulfil

ULmax,RB

ULRB

ULmin,RB NNN ≤≤

where 6ULmin,RB =N and 110ULmax,

RB =N are the smallest and largest uplink bandwidths, respectively, supported by the

current version of this specification. The set of allowed values for ULRBN is given by 3GPP TS 36.101 [7].

The number of SC-FDMA symbols in a slot depends on the cyclic prefix length configured by the higher layer parameter UL-CyclicPrefixLength and is given in Table 5.2.3-1.

An antenna port is defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed. There is one resource grid per antenna port. The antenna ports used for transmission of a physical channel or signal depends on the number of antenna ports configured for the physical channel or signal as shown in Table 5.2.1-1. The index p~ is used throughout clause 5 when a sequential numbering of the antenna ports is necessary.


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ULsymbN

slotT

0=l 1ULsymb −= Nl

RB

scU

LR

BN

N× R

Bsc

N

RBsc

ULsymb NN ×

),( lk

0=k

1RBscULRB −= NNk

Figure 5.2.1-1: Uplink resource grid

Table 5.2.1-1: Antenna ports used for different physical channels and signals

Physical channel or signal Index p~

Antenna port number p as a function of the number of antenna ports configured

for the respective physical channel/signal 1 2 4

PUSCH

0 10 20 40 1 - 21 41 2 - - 42 3 - - 43

SRS

0 10 20 40 1 - 21 41 2 - - 42 3 - - 43

PUCCH, SPUCCH 0 100 200 - 1 - 201 -


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5.2.2 Resource elements

Each element in the resource grid is called a resource element and is uniquely defined by the index pair ( )lk, in a slot where 1,...,0 RBsc

ULRB −= NNk and 1,...,0

ULsymb −= Nl are the indices in the frequency and time domains, respectively.

Resource element ( )lk, on antenna port p corresponds to the complex value )( ,plka . When there is no risk for confusion, or no particular antenna port is specified, the index p may be dropped.

Quantities )( ,plka corresponding to resource elements not used for transmission of a physical channel or a physical signal

in a slot shall be set to zero.

5.2.3 Resource blocks

A physical

TS 136 211 - V15.11.0 - LTE; Evolved Universal Terrestrial ......2000/11/15 · ETSI 3GPP TS 36.211...

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