Transmission of beam switch commands through control channel signaling
Methods, systems, and devices for wireless communications provide for transmission of a beam switch command to a user equipment (UE) via control channel signaling. The UE may establish a connection with a base station using a first transmission beam, receive configuration information configuring the UE to select between a first decoding hypothesis corresponding to downlink control information (DCI) including a bit field including a beam switch command and a second decoding hypothesis corresponding to the DCI not including the bit field, receive a downlink control channel transmission via the first transmission beam, decode the downlink control channel transmission in accordance with the configuration information to obtain decoded DCI, and communicate with the base station based at least in part on the decoded DCI.
1. A method for wireless communication by a user equipment (UE), comprising:
establishing a connection with a base station using a set of beam parameters;
receiving first downlink control information (DCI) with a beam switch command, the first DCI not including a scheduling assignment;
modifying the set of beam parameters based at least in part on the beam switch command;
receiving second DCI comprising a scheduling assignment subsequent to the modifying the set of beam parameters, the second DCI not including a beam switch command; and
receiving a transmission based on the second DCI and the modified set of beam parameters.
2. The method of claim 1 , wherein the first DCI is associated with a first control format and the second DCI is associated with a second, different control format.
3. The method of claim 2 , wherein the first control format is associated with beam switch information.
4. The method of claim 2 , wherein the second control format is associated with uplink scheduling or downlink scheduling.
5. The method of claim 2 , wherein the first control format and the second control format are associated with different blind decoding operations at the UE.
6. The method of claim 1 , wherein the first DCI is associated with a first control resource set and the second DCI is associated with a second, different control resource set.
7. The method of claim 1 , wherein the beam switch command comprises an index for mapping to the modified set of beam parameters.
8. An apparatus for wireless communication by a user equipment (UE), comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
establish a connection with a base station using a set of beam parameters;
receive first downlink control information (DCI) with a beam switch command, the first DCI not including a scheduling assignment;
modify the set of beam parameters based at least in part on the beam switch command;
receive second DCI comprising a scheduling assignment subsequent to the modifying the set of beam parameters, the second DCI not including a beam switch command; and
receive a transmission based on the second DCI and the modified set of beam parameters.
9. The apparatus of claim 8 , wherein the first DCI is associated with a first control format and the second DCI is associated with a second, different control format.
10. The apparatus of claim 9 , wherein the first control format is associated with beam switch information.
11. The apparatus of claim 9 , wherein the second control format is associated with uplink scheduling or downlink scheduling.
12. The apparatus of claim 9 , wherein configuration information is transmitted to the UE over at least radio resource control signaling.
13. The apparatus of claim 8 , wherein the first DCI is associated with a first control resource set and the second DCI is associated with a second, different control resource set.
14. The apparatus of claim 8 , wherein the beam switch command comprises an index for mapping to the modified set of beam parameters.
15. An apparatus for wireless communication by a user equipment (UE), comprising:
means for establishing a connection with a base station using a set of beam parameters;
means for receiving first downlink control information (DCI) with a beam switch command, the first DCI not including a scheduling assignment;
means for modify the set of beam parameters based at least in part on the beam switch command;
means for receiving second DCI comprising a scheduling assignment subsequent to the modifying the set of beam parameters, the second DCI not including a beam switch command; and
receive a transmission based on the second DCI and the modified set of beam parameters.
16. The apparatus of claim 15 , wherein the first DCI is associated with a first control format and the second DCI is associated with a second, different control format.
17. The apparatus of claim 16 , wherein the first control format is associated with beam switch information.
18. The apparatus of claim 16 , wherein the second control format is associated with uplink scheduling or downlink scheduling.
19. The apparatus of claim 16 , wherein configuration information is transmitted to the UE over at least radio resource control signaling.
20. The apparatus of claim 15 , wherein the first DCI is associated with a first control resource set and the second DCI is associated with a second, different control resource set.
21. The apparatus of claim 15 , wherein the beam switch command comprises an index for mapping to the modified set of beam parameters.
22. A non-transitory computer-readable medium storing code for wireless communication at a user equipment, the code comprising instructions executable by a processor to:
establish a connection with a base station using a set of beam parameters;
receive first downlink control information (DCI) with a beam switch command, the first DCI not including a scheduling assignment;
modify the set of beam parameters based at least in part on the beam switch command;
receive second DCI comprising a scheduling assignment subsequent to the modifying the set of beam parameters, the second DCI not including a beam switch command; and
receive a transmission based on the second DCI and the modified set of beam parameters.