Single downlink control information for joint downlink and uplink allocation
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a single downlink control information (DCI). The user equipment may identify, based at least in part on the single DCI, a set of downlink resources allocated to the UE for a downlink communication and a set of uplink resources allocated to the UE for an uplink communication. In some aspects, a base station may allocate a set of downlink resources to a UE for a downlink communication and a set of uplink resources to the UE for an uplink communication. The base station may transmit a single DCI including information associated with identifying the set of downlink resources and the set of uplink resources. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving a single downlink control information (DCI); and
identifying, based at least in part on a reserved bit, of a plurality of bits included the single DCI, or a reserved field entry of a plurality of field entries included in the single DCI, at least one of a set of downlink resources allocated to the UE for a downlink communication or a set of uplink resources allocated to the UE for an uplink communication.
2. The method of claim 1 , wherein the single DCI includes information that identifies the set of downlink resources and information that identifies the set of uplink resources.
3. The method of claim 2 , wherein the single DCI includes resource allocation information that includes the information that identifies the set of downlink resources and the information that identifies the set of uplink resources.
4. The method of claim 2 , wherein the information that identifies the set of downlink resources or the information that identifies the set of uplink resources is determined based at least in part on the reserved bit or the reserved field entry.
5. The method of claim 2 , wherein the single DCI includes the plurality of reserved bits.
6. The method of claim 2 , wherein the single DCI includes the plurality of field entries.
7. The method of claim 2 , wherein the reserved bit or the reserved field entry corresponds to allocation information configured on the UE.
8. The method of claim 7 , wherein the allocation information is configured on the UE via at least one of a radio resource control (RRC) message or a medium access control (MAC) control element.
9. The method of claim 1 , wherein the single DCI is a primary DCI that includes information associated with a secondary DCI, and
wherein method further comprises:
receiving the secondary DCI based at least in part on the information associated with the secondary DCI,
wherein at least one of the set of downlink resources and the set of uplink resources is identified based at least in part on the secondary DCI.
10. The method of claim 9 , wherein either the set of downlink resources is identified based at least in part on the primary DCI or the set of uplink resources is identified based at least in part on the primary DCI.
11. The method of claim 9 , wherein the information associated with the secondary DCI includes information indicating an existence of the secondary DCI and information indicating a format of the secondary DCI.
12. The method of claim 9 , wherein the information associated with the secondary DCI includes resource allocation information that identifies a set of resources associated with the secondary DCI.
13. The method of claim 9 , wherein the information associated with the secondary DCI is determined based at least in part on an indicator included in the primary DCI.
14. The method of claim 13 , wherein the indicator is a reserved bit included in the primary DCI.
15. The method of claim 13 , wherein the indicator is a field entry included in the primary DCI.
16. The method of claim 9 , wherein the secondary DCI includes resource allocation information that identifies the set of downlink resources or the set of uplink resources.
17. The method of claim 9 , wherein information that identifies the set of downlink resources or information that identifies the set of uplink resources is determined based at least in part on an indicator included in the secondary DCI.
18. The method of claim 17 , wherein the indicator is a reserved bit included in the secondary DCI.
19. The method of claim 17 , wherein the indicator is a field entry included in the secondary DCI.
20. The method of claim 17 , wherein the indicator corresponds to allocation information configured on the UE.
21. The method of claim 20 , wherein the allocation information is configured on the UE via at least one of a radio resource control (RRC) message or a medium access control (MAC) control element.
22. The method of claim 1 , further comprising:
receiving the downlink communication in the set of downlink resources allocated to the UE,
wherein the set of uplink resources is identified based at least in part on a medium access control (MAC) control element associated with the downlink communication.
23. The method of claim 1 , further comprising
transmitting the uplink communication in the set of uplink resources allocated to the UE,
wherein the set of downlink resources is identified based at least in part on a medium access control (MAC) control element associated with the uplink communication.
24. The method of claim 1 , wherein one or more scheduling parameters of a semi-persistent scheduling process, associated with the UE, are modified based at least in part on information included in a medium access control (MAC) control element received by the UE or transmitted by the UE.
25. The method of claim 24 , wherein the one or more scheduling parameters include a periodicity associated with the semi-persistent scheduling process or a resource allocation associated with the semi-persistent scheduling process.
26. The method of claim 1 , wherein the downlink communication is received by the UE in the set of downlink resources allocated to the UE for the downlink communication.
27. The method of claim 1 , wherein the uplink communication is transmitted by the UE in the set of uplink resources allocated to the UE for the uplink communication.
28. A method of wireless communication performed by a base station, comprising:
allocating a set of downlink resources to a user equipment (UE) for a downlink communication and a set of uplink resources to the UE for an uplink communication; and
transmitting a single downlink control information (DCI) including a reserved bit, of a plurality of bits, or a reserved field entry, of a plurality of field entries, associated with identifying at least one of the set of downlink resources or the set of uplink resources.
29. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
receive a single downlink control information (DCI); and
identify, based at least in part on a reserved bit, of a plurality of bits included the single DCI, or a reserved field of a plurality of field entries included in the single DCI, at least one of a set of downlink resources allocated to the UE for a downlink communication or a set of uplink resources allocated to the UE for an uplink communication.
30. A base station for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
allocate a set of downlink resources to a user equipment (UE) for a downlink communication and a set of uplink resources to the UE for an uplink communication; and
transmit a single downlink control information (DCI) including a reserved bit, of a plurality of bits, or a reserved field entry, of a plurality of field entries, associated with identifying at least one of the set of downlink resources or the set of uplink resources.