Channel occupancy time duration for cell starting from downlink control information slot
A base station transmits configuration parameters indicating a plurality of slot format combinations of a cell and a slot format indicator (SFI)—radio network temporary identifier (RNTI). The base station transmits, during a slot and based on the SFI-RNTI, downlink control information (DCI) indicating a slot format combination of the plurality of slot format combinations. The slot format combination indicates a channel occupancy time (COT) duration for the cell. The base station receives, from a wireless device and via the cell, a transport block during the COT duration, wherein the COT duration starts from the slot.
1. A method comprising:
transmitting, by a base station, configuration parameters indicating:
a plurality of slot format combinations of a cell; and
a slot format indicator (SFI)—radio network temporary identifier (RNTI);
transmitting, during a slot and based on the SFI-RNTI, downlink control information (DCI) indicating a slot format combination of the plurality of slot format combinations, wherein the slot format combination indicates a channel occupancy time (COT) duration for the cell; and
receiving, from a wireless device and via the cell, a transport block during the COT duration, wherein the COT duration starts from the slot.
2. The method of claim 1 , wherein the slot is a beginning slot of the COT duration.
3. The method of claim 1 , wherein the slot format combination further indicates a structure of the COT duration.
4. The method of claim 3 , wherein the structure of the COT duration comprises a slot format for each slot of the COT duration.
5. The method of claim 1 , wherein the DCI is scrambled by a value of the SFI-RNTI.
6. The method of claim 1 , wherein the transport block is received via a physical uplink shared channel (PUSCH) of the cell.
7. The method of claim 1 , wherein a length of the slot format combination in a time domain is equal to the COT duration.
8. The method of claim 1 , wherein the DCI is transmitted via a group common physical downlink control channel (PDCCH).
9. The method of claim 1 , wherein each of the plurality of slot format combinations comprises one or more slot formats for a plurality of slots.
10. The method of claim 9 , wherein the plurality of slots comprises one or more mini-slots or one or more slots.
11. A base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station to:
transmit configuration parameters indicating:
a plurality of slot format combinations of a cell; and
a slot format indicator (SFI)—radio network temporary identifier (RNTI);
transmit, during a slot and based on the SFI-RNTI, downlink control information (DCI) indicating a slot format combination of the plurality of slot format combinations, wherein the slot format combination indicates a channel occupancy time (COT) duration for the cell; and
receive, from a wireless device and via the cell, a transport block during the COT duration, wherein the COT duration starts from the slot.
12. The base station of claim 11 , wherein the slot is a beginning slot of the COT duration.
13. The base station of claim 11 , wherein the slot format combination further indicates a structure of the COT duration.
14. The base station of claim 13 , wherein the structure of the COT duration comprises a slot format for each slot of the COT duration.
15. The base station of claim 11 , wherein the DCI is scrambled by a value of the SFI-RNTI.
16. The base station of claim 11 , wherein the transport block is received via a physical uplink shared channel (PUSCH) of the cell.
17. The base station of claim 11 , wherein a length of the slot format combination in a time domain is equal to the COT duration.
18. The base station of claim 11 , wherein the DCI is transmitted via a group common physical downlink control channel (PDCCH).
19. The base station of claim 11 , wherein each of the plurality of slot format combinations comprises one or more slot formats for a plurality of slots.
20. A non-transitory computer-readable medium storing instructions that, when executed by one or more processors of a base station, cause the base station to:
transmit configuration parameters indicating:
a plurality of slot format combinations of a cell; and
a slot format indicator (SFI)—radio network temporary identifier (RNTI);
transmit, during a slot and based on the SFI-RNTI, downlink control information (DCI) indicating a slot format combination of the plurality of slot format combinations, wherein the slot format combination indicates a channel occupancy time (COT) duration for the cell; and
receive, from a wireless device and via the cell, a transport block during the COT duration, wherein the COT duration starts from the slot.