Content for TS 37.213 Word version: 18.1.0
4.1 Downlink channel access procedures
4.2 Uplink channel access procedures
4.3 Channel access procedures for semi-static channel occupancy
4.4 Channel access procedures for frequency range 2-2
4.5 Sidelink Channel access procedures
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4.1 Downlink channel access procedures p. 8
4.1.1 Type 1 DL channel access procedures p. 8
4.1.2 Type 2 DL channel access procedures p. 9
4.1.2.1 Type 2A DL channel access procedures |R16| p. 10
4.1.2.2 Type 2B DL channel access procedures |R16| p. 10
4.1.2.3 Type 2C DL channel access procedures |R16| p. 10
4.1.3 DL channel access procedures in a shared channel occupancy p. 10
4.1.4 Contention window adjustment procedures p. 11
4.1.4.1 Contention window adjustment procedures for transmissions by eNB |R16| p. 11
4.1.4.2 Contention window adjustment procedures for DL transmissions by gNB |R16| p. 12
4.1.4.3 Common procedures for CWS adjustments for DL transmissions |R16| p. 13
4.1.5 Energy detection threshold adaptation procedures p. 13
4.1.6 Channel access procedures for transmission(s) on multiple channels p. 14
4.2 Uplink channel access procedures p. 15
4.2.1 Channel access procedures for uplink transmission(s) p. 16
4.2.1.0 Channel access procedures and UL related signaling |R16| p. 17
4.2.1.0.0 Channel access procedures upon detection of a common DCI p. 17
4.2.1.0.1 Channel access procedures for consecutive UL transmission(s) p. 18
4.2.1.0.2 Conditions for maintaining Type 1 UL channel access procedures p. 19
4.2.1.0.3 Conditions for indicating Type 2 channel access procedures p. 20
4.2.1.0.4 Channel access procedures for UL multi-channel transmission(s) p. 20
4.2.1.1 Type 1 UL channel access procedure p. 21
4.2.1.2 Type 2 UL channel access procedure p. 22
4.2.2 Contention window adjustment procedures p. 22
4.2.2.1 Contention window adjustment procedures for UL transmissions scheduled/configured by eNB |R16| p. 22
4.2.2.2 Contention window adjustment procedures for UL transmissions scheduled/configured by gNB |R16| p. 24
4.2.2.3 Common procedures for CWS adjustments for UL transmissions |R16| p. 25
4.2.3 Energy detection threshold adaptation procedure p. 25
4.3 Channel access procedures for semi-static channel occupancy |R16| p. 26
4.3.1 Channel access procedures to initiate a channel occupancy |R17| p. 27
4.3.1.1 Channel occupancy initiated only by gNB p. 27
4.3.1.2 Channel occupancy initiated by gNB or UE p. 27
4.3.1.2.1 Channel occupancy initiated by gNB and sensing procedures p. 27
4.3.1.2.2 Channel occupancy initiated by UE and sensing procedures p. 28
4.3.1.2.3 Association with initiated channel occupancy for configured UL transmissions p. 29
4.3.1.2.4 Association with initiated channel occupancy for scheduled UL transmissions p. 30
4.3.2 Channel access related procedures for UL transmissions |R17| p. 32
4.3.3 Channel access procedures for transmission(s) on multiple channels |R17| p. 32
4.4 Channel access procedures for frequency range 2-2 |R17| p. 33
4.4.1 Type 1 channel access procedures p. 34
4.4.2 Type 2 channel access procedures p. 35
4.4.3 Type 3 channel access procedures p. 35
4.4.4 Channel access procedures in an initiated channel occupancy p. 35
4.4.5 Exempted transmissions from sensing p. 36
4.4.6 Channel access procedures for transmission(s) on multiple channels or beams p. 36
4.4.7 Energy detection threshold adaptation procedures p. 37
4.5 Sidelink Channel access procedures |R18| p. 37
4.5.1 Type 1 SL channel access procedure p. 38
4.5.2 Type 2 SL channel access procedure p. 39
4.5.2.1 Type 2A SL channel access procedure p. 39
4.5.2.2 Type 2B SL channel access procedure p. 39
4.5.2.3 Type 2C SL channel access procedure p. 40
4.5.3 SL channel access procedures in a shared channel occupancy p. 40
4.5.4 Contention window adjustment procedures for SL transmissions p. 41
4.5.5 Energy detection threshold adaptation procedure p. 42
4.5.6 Channel access procedures for transmission(s) on multiple channels p. 43
4.5.6.1 Type A multi-channel access procedures for PSFCH transmissions p. 44
4.5.6.1.1 Type A1 multi-channel access procedures p. 44
4.5.6.1.2 Type A2 multi-channel access procedures p. 44
4.5.6.2 Type B multi-channel access procedures for PSFCH or S-SSB transmissions p. 44
4.5.6.2.1 Type B1 multi-channel access procedure p. 45
4.5.6.2.2 Type B2 multi-channel access procedure p. 45
4.5.6.3 Multi-channel access procedures for SL transmissions p. 45
$ Change history p. 47
