Methods and apparatus for transmitting sidelink control messages

1. A method of wireless communication by a user equipment (UE) in a network, comprising:

receiving first scheduling information indicating a sidelink uplink control information (S-UCI) resource;

receiving second scheduling information indicating one or more physical sidelink feedback channel (PSFCH) resources;

determining an earlier resource of the S-UCI resource and the one or more PSFCH resources; and

transmitting control information via at least one of the S-UCI resource or the one or more PSFCH resources, wherein the UE comprises a client and the control information comprises S-UCI, the S-UCI comprises control messages from the client to an anchor, wherein transmitting the control information comprises transmitting the control information via the earlier resource and refraining from transmitting the control information in a later resource.

2. The method of claim 1 , wherein transmitting the control information comprises:

transmitting the control information via the S-UCI resource, wherein the control information includes S-UCI bits and PSFCH bits; and

refraining from transmitting the control information in the one or more PSFCH resources.

3. The method of claim 1 , wherein:

the control information includes at least one of a resource selection, a collision detection, a channel state information (CSI) report, a hybrid automatic repeat request (HARQ) acknowledgement, a HARQ negative acknowledgement, or a scheduling request.

4. The method of claim 1 , wherein the client comprise a sensor/actuator (SA) and the anchor comprises a programmable logical controller (PLC) that controls a plurality of SAs, the plurality of SAs comprising the SA.

5. The method of claim 1 , wherein the S-UCI resource overlaps in time with the one or more PSFCH resources.

6. The method of claim 1 , wherein the S-UCI resource are separate from PSSCH resources and from PSCCH resources.

7. A user equipment (UE), comprising:

a memory comprising instructions;

a transceiver; and

one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to:

receive, via the transceiver, first scheduling information indicating a sidelink uplink control information (S-UCI) resource;

receive, via the transceiver, second scheduling information indicating one or more physical sidelink feedback channel (PSFCH) resources;

determine an earlier resource of the S-UCI resource and the one or more PSFCH resources; and

transmit, via the transceiver, control information via at least one of the S-UCI resource or the one or more PSFCH resources, wherein the UE comprises a client and the control information comprises S-UCI, the S-UCI comprises control messages from the client to an anchor, wherein transmitting the control information comprises transmitting the control information via the earlier resource and refraining from transmitting the control information in a later resource.

8. The UE of claim 7 , wherein transmitting the control information comprises:

transmitting, via the transceiver, the control information via the S-UCI resource, wherein the control information includes S-UCI bits and PSFCH bits; and

refraining from transmitting the control information in the one or more PSFCH resources.

9. The UE of claim 7 , wherein:

the control information includes at least one of a resource selection, a collision detection, a channel state information (CSI) report, a hybrid automatic repeat request (HARQ) acknowledgement, a HARQ negative acknowledgement, or a scheduling request.

10. The UE of claim 7 , wherein the client comprise a sensor/actuator (SA) and the anchor comprises a programmable logical controller (PLC) that controls a plurality of SAs, the plurality of SAs comprising the SA.

11. The UE of claim 7 , wherein the S-UCI resource overlaps in time with the one or more PSFCH resources.

12. The UE of claim 7 , wherein the S-UCI resource are separate from PSSCH resources and from PSCCH resources.

13. A non-transitory computer readable medium having instructions stored therein that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:

receive first scheduling information indicating a sidelink uplink control information (S-UCI) resource;

receive second scheduling information indicating one or more physical sidelink feedback channel (PSFCH) resources;

determining an earlier resource of the S-UCI resource and the one or more PSFCH resources; and

transmit control information via at least one of the S-UCI resource or the one or more PSFCH resources, wherein the UE comprises a client and the control information comprises S-UCI, the S-UCI comprises control messages from the client to an anchor, wherein transmitting the control information comprises transmitting the control information via the earlier resource and refraining from transmitting the control information in a later resource.

14. The non-transitory computer readable medium of claim 13 , wherein the instructions for transmitting the control information further comprising instructions for:

transmitting the control information via the S-UCI resource, wherein the control information includes S-UCI bits and PSFCH bits; and

refraining from transmitting the control information in the one or more PSFCH resources.

15. The non-transitory computer readable medium of claim 13 , wherein:

the control information includes at least one of a resource selection, a collision detection, a channel state information (CSI) report, a hybrid automatic repeat request (HARQ) acknowledgement, a HARQ negative acknowledgement, or a scheduling request.

16. The non-transitory computer readable medium of claim 13 , wherein the client comprise a sensor/actuator (SA) and the anchor comprises a programmable logical controller (PLC) that controls a plurality of SAs, the plurality of SAs comprising the SA.

17. The non-transitory computer readable medium of claim 13 , wherein the S-UCI resource overlaps in time with the one or more PSFCH resources.

18. The non-transitory computer readable medium of claim 13 , wherein the S-UCI resource are separate from PSSCH resources and from PSCCH resources.

19. A user equipment (UE), comprising:

means for receiving first scheduling information indicating a sidelink uplink control information (S-UCI) resource;

means for receiving second scheduling information indicating one or more physical sidelink feedback channel (PSFCH) resources;

means for determining an earlier resource of the S-UCI resource and the one or more PSFCH resources; and

means for transmitting control information via at least one of the S-UCI resource or the one or more PSFCH resources, wherein the UE comprises a client and the control information comprises S-UCI, the S-UCI comprises control messages from the client to an anchor, wherein transmitting the control information comprises transmitting the control information via the earlier resource and refraining from transmitting the control information in a later resource.

20. The UE of claim 19 , wherein means for transmitting the control information comprises:

means for transmitting the control information via the S-UCI resource, wherein the control information includes S-UCI bits and PSFCH bits; and

means for refraining from transmitting the control information in the one or more PSFCH resources.

21. The UE of claim 19 , wherein:

the control information includes at least one of a resource selection, a collision detection, a channel state information (CSI) report, a hybrid automatic repeat request (HARQ) acknowledgement, a HARQ negative acknowledgement, or a scheduling request.

22. The UE of claim 19 , wherein the client comprise a sensor/actuator (SA) and the anchor comprises a programmable logical controller (PLC) that controls a plurality of SAs, the plurality of SAs comprising the SA.

23. The UE of claim 19 , wherein the S-UCI resource overlaps in time with the one or more PSFCH resources.

24. The UE of claim 19 , wherein the S-UCI resource are separate from PSSCH resources and from PSCCH resources.