Size indication for feedback signaling
There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting feedback signaling utilizing a feedback resource range, the feedback resource range being determined based on a received feedback size indication. The feedback resource range is a part of a signaling resource range configured to the user equipment for transmission.
1. A method of operating a user equipment (UE) in a New Radio (NR) radio access network, the method comprising:
receiving signaling that includes:
an uplink grant scheduling the UE with a signaling resource range of resources in a Physical Uplink Shared Channel (PUSCH) for transmission;
a feedback size indication indicating an expected size of a feedback resource range that comprises a continuous subset of a plurality of symbols of a slot in the signaling resource range that a network node expects to be used by the UE for Hybrid Acknowledgement Repeat Request (HARQ) feedback associated with at least one scheduling assignment; and
determining the expected size of the feedback resource range within the signaling resource range based on the feedback size indication;
determining an actual size of the feedback resource range needed for HARQ feedback is less than the expected size of the feedback resource range within the signaling resource range due to at least one missed scheduling assignment from the network node;
in response to the actual size of the feedback resource range being less than the expected size of the feedback resource range within the signaling resource range, padding at least a portion of the feedback resource range to meet the expected size of the feedback resource range within the signaling resource range; and
transmitting Uplink Control Information (UCI) comprising the HARQ feedback on the feedback resource range in the signaling resource range of the PUSCH.
2. The method according to claim 1 , wherein the feedback size indication indicates a number of bits of HARQ feedback pertaining to associated HARQ processes scheduled for a time interval comprising a plurality of slots to be transmitted.
3. The method according to claim 1 , wherein the UCI comprises measurement information.
4. The method according to claim 1 , wherein the feedback resource range being determined based on the feedback size indication.
5. The method according to claim 1 , wherein the feedback size indication is an indirect indication.
6. The method according to claim 1 , wherein the UCI is transmitted on resources of the signaling resource range.
7. The method according to claim 1 , wherein the feedback size indication pertains to a size of HARQ feedback pertaining to a plurality of different HARQ processes.
8. The method according to claim 1 , wherein the feedback size indication is transmitted separately from at least one scheduling assignment scheduling signaling to which the HARQ feedback pertains.
9. The method according to claim 1 , wherein the HARQ feedback is rate matched on the signaling resource range.
10. A user equipment (UE) for a New Radio (NR) radio access network, the UE comprising processing circuitry and radio circuitry, and being configured to utilize the processing circuitry and radio circuitry to:
receive signaling that includes:
an uplink grant scheduling the UE with a signaling resource range of resources in a Physical Uplink Shared Channel (PUSCH) for transmission;
a feedback size indication indicating an expected size of a feedback resource range that comprises a continuous subset of a plurality of symbols of a slot in the signaling resource range that a network node expects to be used by the UE for Hybrid Acknowledgement Repeat Request (HARQ) feedback associated with at least one scheduling assignment; and
determine the expected size of the feedback resource range within the signaling resource range based on the feedback size indication;
determine an actual size of the feedback resource range needed for HARQ feedback is less than the expected size of the feedback resource range within the signaling resource range due to at least one missed scheduling assignment from the network node;
in response to the actual size of the feedback resource range being less than the expected size of the feedback resource range within the signaling resource range, pad at least a portion of the feedback resource range to meet the expected size of the feedback resource range within the signaling resource range; and
transmit Uplink Control Information (UCI) comprising the HARQ feedback on the feedback resource range in the signaling resource range of the PUSCH.
11. The user equipment according to claim 10 , wherein the feedback size indication indicates a number of bits of HARQ feedback pertaining to associated HARQ processes scheduled for a time interval comprising a plurality of slots to be transmitted.
12. The user equipment according to claim 10 , wherein the UCI comprises measurement information.
13. The user equipment according to claim 10 , wherein the feedback resource range being determined based on the feedback size indication.
14. The user equipment according to claim 10 , wherein the feedback size indication is an indirect indication.
15. The user equipment according to claim 10 , wherein the UCI is transmitted on resources of the signaling resource range.
16. The user equipment according to claim 10 , wherein the feedback size indication pertains to a size of HARQ feedback pertaining to a plurality of different HARQ processes.
17. The user equipment according to claim 10 , wherein the feedback size indication is transmitted separately from at least one scheduling assignment scheduling signaling to which the HARQ feedback pertains.
18. The user equipment according to claim 10 , wherein the HARQ feedback is rate matched on the signaling resource range.