Channel occupancy time duration for a cell starting from a slot of a downlink control information
A wireless device receives configuration parameters indicating: a plurality of slot format combinations of a cell; and a slot format indicator (SFI) radio network temporary identifier (RNTI). During a slot and based on the SFI-RNTI, a downlink control information (DCI) indicating a slot format combination of the plurality of slot format combinations is received. The slot format combination indicates a channel occupancy time (COT) duration for the cell. A determination is made, based on the receiving the DCI, that the COT duration starts from the slot. A transport block based on the COT duration is transmitted via the cell.
1. A method comprising:
receiving, by a wireless device, configuration parameters indicating:
a plurality of slot format combinations of a cell; and
a slot format indicator (SFI) radio network temporary identifier (RNTI);
receiving, during a slot and based on the SFI-RNTI, a 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;
determining, based on the receiving the DCI, that the COT duration starts from the slot; and
transmitting, via the cell, a transport block based on the COT duration.
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 receiving the DCI based on the SFI-RNTI comprises decoding a physical downlink control channel (PDCCH) containing the DCI with cyclic redundancy check (CRC) scrambled by the SFI-RNTI.
6. The method of claim 1 , wherein the transmitting the transport block comprises transmitting the transport block 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 receiving the DCI comprises receiving the DCI 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 comprise one or more mini-slots or one or more slots.
11. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive configuration parameters indicating:
a plurality of slot format combinations of a cell; and
a slot format indicator (SFI) radio network temporary identifier (RNTI);
receive, during a slot and based on the SFI-RNTI, a 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;
determine, based on receiving the DCI, that the COT duration starts from the slot; and
transmit, via the cell, a transport block based on the COT duration.
12. The wireless device of claim 11 , wherein the slot is a beginning slot of the COT duration.
13. The wireless device of claim 11 , wherein the slot format combination further indicates a structure of the COT duration.
14. The wireless device of claim 13 , wherein the structure of the COT duration comprises a slot format for each slot of the COT duration.
15. The wireless device of claim 11 , wherein the instructions further cause the wireless device to decode a physical downlink control channel (PDCCH) containing the DCI with cyclic redundancy check (CRC) scrambled by the SFI-RNTI.
16. The wireless device of claim 11 , wherein the instructions further cause the wireless device to transmit the transport block via a physical uplink shared channel (PUSCH) of the cell.
17. The wireless device of claim 11 , wherein a length of the slot format combination in a time domain is equal to the COT duration.
18. The wireless device of claim 11 , wherein the instructions further cause the wireless device to receive the DCI via a group common physical downlink control channel (PDCCH).
19. The wireless device 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 system comprising:
a base station comprising:
one or more first processors; and
first memory storing first instructions that, when executed by the one or more first 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); and
a wireless device comprising:
one or more second processors; and
second memory storing second instructions that, when executed by the one or more second processors, cause the wireless device to:
receive the configuration parameters;
receive, 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;
determine, based on receiving the DCI, that the COT duration starts from the slot; and
transmit, via the cell, a transport block based on the COT duration.