GC-DCI resource reallocation for SPS PUSCH
A configuration of providing uplink resources that supports low throughput traffic and high throughput traffic, while providing efficient utilization of downlink resources. The apparatus configures at least one UE with a set of group identifiers, the set of group identifiers including at least one group identifiers. The apparatus transmits a GC-DCI in a GC search space, the GC-DCI indicates to the at least one UE a change of uplink data resources, the GC-DCI may be encoded using a group identifier from the set of group identifiers.
1. A method of wireless communication at a base station, comprising:
configuring at least one user equipment (UE) with a plurality of group identifiers; and
transmitting, in association with uplink data from the UE exceeding a previous uplink data resource allocation, a group common radio downlink control indicator (GC-DCI) in a group common (GC) search space, the GC-DCI indicating to the at least one UE a change of uplink data resources, wherein the GC-DCI is encoded using a group identifier from the plurality of group identifiers.
2. The method of claim 1 , wherein the base station configures the at least one UE with the plurality of group identifiers using a radio resource control (RRC) configuration.
3. The method of claim 1 , wherein each of the plurality of group identifiers are associated with an index.
4. The method of claim 1 , wherein each of the plurality of group identifiers are associated with a modulation and coding scheme (MCS).
5. The method of claim 1 , wherein the base station further configures the at least one UE with a group common radio network temporary identifier (GC-RNTI) to use in monitoring for the GC-DCI.
6. The method of claim 1 , wherein the base station further configures the at least one UE with an offset index to search for a time-frequency resource allocation within the GC-DCI.
7. The method of claim 1 ,
wherein the plurality of group identifiers comprises a plurality of group common radio network temporary identifiers (GC-RNTIs), wherein each of the plurality of GC-RNTIs is associated with a respective group of UEs of a plurality of groups for resource allocation, wherein the at least one UE is within at least one group of UEs of the plurality of groups.
8. The method of claim 7 , further comprising:
adjusting frequency domain resources or time domain resources of the at least one UE within one of the respective group of UEs using the GC-DCI encoded based on a corresponding GC-RNTI.
9. The method of claim 8 , wherein each of the plurality of GC-RNTIs is associated with at least one of a frequency domain resource allocation or a time domain resource allocation.
10. The method of claim 1 , further comprising:
configuring each UE of a group of UEs including the at least one UE with a single group common radio network temporary identifier (GC-RNTI), wherein the GC-RNTI is associated with the group of UEs.
11. The method of claim 10 , further comprising:
adjusting frequency domain resources or time domain resources of the at least one UE within the group of UEs based, in part, on the GC-DCI encoded using the GC-RNTI.
12. The method of claim 1 , wherein the change of uplink data resources replaces the previous uplink data resource allocation.
13. The method of claim 1 , wherein the change of uplink data resources indicated by the GC-DCI applies for a limited number of transmission opportunities.
14. The method of claim 13 , wherein at an end of the limited number of transmission opportunities, the previous uplink data resource allocation applies.
15. An apparatus for wireless communication at a base station, comprising:
a memory; and
at least one processor coupled to the memory and configured to:
configure at least one user equipment (UE) with a plurality of group identifiers; and
transmit, in association with uplink data from the UE exceeding a previous uplink data resource allocation, a group common radio downlink control indicator (GC-DCI) in a group common (GC) search space, the GC-DCI indicating to the at least one UE a change of uplink data resources, wherein the GC-DCI is encoded using a group identifier from the plurality of group identifiers.
16. A method of wireless communication at a User Equipment (UE), comprising:
receiving, from a base station, a plurality of group identifiers;
receiving, from the base station and in association with uplink data from the UE exceeding a previous uplink data resource allocation, a group common radio downlink control indicator (GC-DCI) indicating a change of uplink data resources, wherein the GC-DCI is encoded using a group identifier from the plurality of group identifiers; and
transmitting an uplink signal, to the base station, based on the change of uplink data resources indicated by the GC-DCI.
17. The method of claim 16 , wherein the UE receives the plurality of group identifiers using a radio resource control (RRC) configuration.
18. The method of claim 16 , wherein each of the plurality of group identifiers are associated with an index.
19. The method of claim 16 , wherein each of the plurality of group identifiers are associated with a modulation and coding scheme (MCS).
20. The method of claim 16 , wherein the UE is configured with a group common radio network temporary identifier (GC-RNTI) to use in monitoring for the GC-DCI.
21. The method of claim 16 , wherein the UE is configured with an offset index to search for a time-frequency resource allocation within the GC-DCI.
22. The method of claim 16 , wherein the plurality of group identifiers comprises a plurality of group common radio network temporary identifiers (GC-RNTIs), wherein each of the plurality of GC-RNTIs is associated with a respective group of UEs of a plurality of groups for resource allocation, wherein the UE is within at least one group of UEs of the plurality of groups.
23. The method of claim 22 , further comprising:
adjusting frequency domain resources or time domain resources of the UE within one of the respective group of UEs using the GC-DCI encoded based on a corresponding GC-RNTI.
24. The method of claim 23 , wherein each of the plurality of GC-RNTIs is associated with at least one of a frequency domain resource allocation or a time domain resource allocation.
25. The method of claim 16 , wherein the UE is within a group of UEs and is configured with a first group common radio network temporary identifier (GC-RNTI), wherein the first GC-RNTI is associated with the group of UEs.
26. The method of claim 25 , further comprising:
adjusting frequency domain resources or time domain resources of the UE within the group of UEs based, in part, on the GC-DCI encoded using the GC-RNTI.
27. The method of claim 16 , wherein the change of uplink data resources replaces the previous uplink data resource allocation.
28. The method of claim 16 , wherein the change of uplink data resources indicated by the GC-DCI applies for a limited number of transmission opportunities.
29. The method of claim 28 , wherein at an end of the limited number of transmission opportunities, the previous uplink data resource allocation applies.
30. An apparatus for wireless communication at a User Equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and configured to:
receive, from a base station, a plurality of group identifiers;
receive, from the base station and in association with uplink data from the UE exceeding a previous uplink data resource allocation, a group common radio downlink control indicator (GC-DCI) indicating a change of uplink data resources, wherein the GC-DCI is encoded using a group identifier from the plurality of group identifiers; and
transmit an uplink signal, to the base station, based on the change of uplink data resources indicated by the GC-DCI.