Cancellation indicator with configurable cancelled direction
A user equipment (UE) may receive an indicator that indicates cancellation of one or more scheduled transmissions on a group of resources. The indicator has a format that is configurable to indicate whether scheduled transmissions in a downlink direction, an uplink direction, or both are cancelled. The indicator may include an indication of the group of resources and zero or more flags indicating a direction of transmissions that are canceled, or the indicator may include two or more groups of resources that each apply to one or both of the downlink direction or the uplink direction. The UE may cancel one or more transmissions in response to the indicator.
1. A method of wireless communication, comprising:
receiving a configuration message indicating a number of one or more flags that are included in an indicator;
receiving the indicator that indicates a group of resources and cancellation of one or more scheduled transmissions on the group of resources, wherein the indicator includes the indication of the group of resources, and wherein the one or more flags indicate a direction of transmissions that are canceled are each configurable to indicate one of: a downlink direction, an uplink direction, or both of the downlink direction and the uplink direction; and
cancelling one or more transmissions in response to the indicator.
2. The method of claim 1 , wherein the indicator is a physical downlink control channel (PDCCH) downlink control information (DCI).
3. The method of claim 1 , wherein cancelling the one or more transmissions comprises cancelling a transmission in a default direction when none of the flags indicating the direction of the one or more transmissions that are canceled are set in the indicator.
4. The method of claim 1 , wherein the indicator includes two or more groups of resources that each apply to one or both of the downlink direction or the uplink direction.
5. The method of claim 4 , further comprising receiving a configuration message indicating an order of applying the two or more groups of resources to the downlink direction or the uplink direction.
6. The method of claim 4 , wherein an order of applying the two or more groups of resources to the downlink direction or the uplink direction is a default order.
7. The method of claim 1 , further comprising receiving an indication of whether transmissions in an opposite direction at a same time as the one or more scheduled transmissions are cancelled.
8. The method of claim 1 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling an applied type of transmission.
9. The method of claim 8 , wherein the applied type of transmission for the downlink direction includes one of: a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), a positioning reference signal (PRS), or a combination thereof.
10. The method of claim 8 , wherein the applied type of transmission for the uplink direction includes one of: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), or a combination thereof.
11. The method of claim 1 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling a portion of at least one of the transmissions that overlaps the group of resources.
12. The method of claim 1 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling an entire transmission that partially overlaps the group of resources.
13. The method of claim 1 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling a portion of the transmission that overlaps the group of resources based on a type of the transmission or cancelling all of the transmission based on a type of the transmission.
14. A method of wireless communication, comprising:
transmitting a configuration message indicating a number of one or more flags that are included in an indicator;
transmitting the indicator that indicates a group of resources and cancellation of one or more scheduled transmissions on the group of resources, wherein the indicator includes the indication of the group of resources, and wherein the one or more flags indicate a direction of transmissions that are canceled and are each configurable to indicate one of: a downlink direction, an uplink direction, or both of the downlink direction and the uplink direction; and
cancelling one or more transmissions in response to the indicator.
15. The method of claim 14 , wherein the indicator is a physical downlink control channel (PDCCH) downlink control information (DCI).
16. The method of claim 1 , wherein cancelling the one or more transmissions comprises cancelling a transmission in a default direction when none of the flags indicating the direction of the one or more transmissions that are canceled are set in the indicator.
17. The method of claim 14 , wherein the indicator includes two or more groups of resources that each apply to one or both of the downlink direction or the uplink direction.
18. The method of claim 17 , further comprising transmitting a configuration message indicating an order of applying the two or more groups of resources to the downlink direction or the uplink direction.
19. The method of claim 17 , wherein an order of applying the two or more groups of resources to the downlink direction or the uplink direction is a default order.
20. The method of claim 17 , further comprising transmitting an indication of whether transmissions in an opposite direction at a same time as the one or more scheduled transmissions are cancelled.
21. The method of claim 14 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling an applied type of transmission.
22. The method of claim 21 , wherein the applied type of transmission for the downlink direction includes one of: a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), a positioning reference signal (PRS), or a combination thereof.
23. The method of claim 21 , wherein the applied type of transmission for the uplink direction includes one of: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), or a combination thereof.
24. The method of claim 14 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling a portion of at least one of the transmissions that overlaps the group of resources.
25. The method of claim 14 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling an entire transmission that partially overlaps the group of resources.
26. The method of claim 14 , wherein cancelling the one or more transmissions in response to the indicator comprises cancelling a portion of the transmission that overlaps the group of resources based on a type of the transmission or cancelling all of the transmission based on a type of the transmission.
27. An apparatus for wireless communication, comprising:
a memory storing computer-executable instructions; and
at least one processor coupled to the memory and configured to execute the instructions to:
receive a configuration message indicating a number of one or more flags that are included in an indicator;
receive the indicator that indicates a group of resources and cancellation of one or more scheduled transmissions on the group of resources, wherein the indicator includes the indication of the group of resources, and wherein the one or more flags indicate a direction of transmissions that are canceled and are configurable to indicate one of: a downlink direction, an uplink direction, or both of the downlink direction and the uplink direction; and
cancel one or more transmissions in response to the indicator.
28. An apparatus for wireless communication, comprising:
a memory storing computer-executable instructions; and
at least one processor coupled to the memory and configured to execute the instructions to:
transmit a configuration message indicating a number of one or more flags that are included in an indicator;
transmit the indicator that indicates a group of resources and cancellation of one or more scheduled transmissions on the group of resources, wherein the indicator includes the indication of the group of resources, and wherein the one or more flags indicate a direction of transmissions that are canceled and are each configurable to indicate one of: a downlink direction, an uplink direction, or both of the downlink direction and the uplink direction; and
cancel one or more transmissions in response to the indicator.