Beam reporting and scheduling in multicarrier beamformed communications
Methods, systems, and devices for wireless communication are described. A base station may partition a plurality of carriers into one or more groups. Each carrier within a group may share one or more antenna panels so as to each be directed by a transmit beam in a same direction. The base station may transmit to a user equipment a carrier group indication that identifies the partitioning of the plurality of carriers into the one or more groups and maps a group identifier for at least one of the one or more groups to a beam identifier that identifies the corresponding transmit beam.
1. A method for multicarrier beamformed wireless communication with a network access device, the network access device configured to partition a plurality of carriers into a plurality of groups including a first group of carriers to be carried by a first transmit beam having a first beam direction and a different second group of carriers to be carried by a different second transmit beam having a different second beam direction, the method comprising:
by a user equipment (UE):
receiving an indication of the first group of carriers partitioned by the network access device to be carried by the first transmit beam having the first beam direction;
receiving an indication of the different second group of carriers partitioned by the network access device to be carried by the different second transmit beam having the different second beam direction; and
receiving, via the first transmit beam having the first beam direction and via the first group of carriers and based at least in part on the indication of the first group of carriers and the indication of the different second group of carriers, one or more transmissions comprising a scheduling grant to schedule the UE for communications on the different second transmit beam associated with the different second group of carriers.
2. The method of claim 1 , wherein receiving the scheduling grant comprises:
receiving a downlink control information message including the scheduling grant.
3. The method of claim 1 , wherein receiving the one or more transmissions comprises:
receiving, on a carrier of the plurality of carriers, a single scheduling grant to the UE to simultaneously schedule the UE on one or more carriers within one of the plurality of groups.
4. The method of claim 1 , wherein receiving the one or more transmissions comprises:
receiving a request for one or more carrier measurement reports, wherein the request indicates whether the UE is to provide the one or more carrier measurement reports on a per carrier basis, the one or more carrier measurement reports on a per group basis, or combinations thereof.
5. The method of claim 4 , wherein the request for the one or more carrier measurement reports further indicates that the one or more carrier measurement reports for carriers of at least one group are to be transmitted on a single respective carrier.
6. The method of claim 1 , further comprising:
transmitting one or more carrier measurement reports representing carrier measurements of a same transmit beam corresponding to each group of the plurality of groups.
7. The method of claim 6 , wherein the one or more carrier measurement reports include the one or more carrier measurement reports on a per carrier basis for carriers within each group.
8. The method of claim 6 wherein the one or more carrier measurement reports include the one or more carrier measurement reports on a per group basis for all carriers within each group.
9. The method of claim 6 , further comprising:
transmitting the one or more carrier measurement reports for carriers of at least one group on a single respective carrier.
10. An apparatus for multicarrier beamformed wireless communication by a user equipment (UE) with a network access device, the network access device configured to partition a plurality of carriers into a plurality of groups including a first group of carriers to be carried by a first transmit beam having a first beam direction and a different second group of carriers to be carried by a different second transmit beam having a different second beam direction, comprising:
a processor;
memory; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive an indication of the first group of carriers partitioned by the network access device to be carried by the first transmit beam having the first beam direction;
receive an indication of the different second group of carriers partitioned by the network access device to be carried by the different second transmit beam having the different second beam direction; and
receive, via the first transmit beam having the first beam direction and via the first group of carriers and based at least in part on the indication of the first group of carriers and the indication of the different second group of carriers, one or more transmissions comprising a scheduling grant to schedule the UE for communications on the different second transmit beam associated with the different second group of carriers.
11. The apparatus of claim 10 , wherein the instructions to receive the scheduling grant are executable by the processor to cause the apparatus to:
receive a downlink control information message including the scheduling grant.
12. The apparatus of claim 10 , wherein the instructions to receive the one or more transmissions are executable by the processor to cause the apparatus to:
receive, on a carrier of the plurality of carriers, a single scheduling grant to the UE to simultaneously schedule the UE on one or more carriers within one of the plurality of groups.
13. The apparatus of claim 10 , wherein the instructions to receive the one or more transmissions are executable by the processor to cause the apparatus to:
receive a request for one or more carrier measurement reports, wherein the request indicates whether the UE is to provide the one or more carrier measurement reports on a per carrier basis, the one or more carrier measurement reports on a per group basis, or combinations thereof.
14. The apparatus of claim 13 , wherein the request for the one or more carrier measurement reports further indicates that the one or more carrier measurement reports for carriers of at least one group are to be transmitted on a single respective carrier.
15. The apparatus of claim 10 , wherein the instructions are further executable by the processor to cause the apparatus to:
transmit one or more carrier measurement reports representing carrier measurements of a same transmit beam corresponding to each group of the plurality of groups.
16. The apparatus of claim 15 , wherein the one or more carrier measurement reports include the one or more carrier measurement reports on a per carrier basis for carriers within each group.
17. The apparatus of claim 15 , wherein the one or more carrier measurement reports include the one or more carrier measurement reports on a per group basis for all carriers within each group.
18. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
transmit the one or more carrier measurement reports for carriers of at least one group on a single respective carrier.
19. An apparatus for multicarrier beamformed wireless communication by a user equipment (UE) with a network access device, the network access device configured to partition a plurality of carriers into a plurality of groups including a first group of carriers to be carried by a first transmit beam having a first beam direction and a different second group of carriers to be carried by a different second transmit beam having a different second beam direction, the apparatus comprising:
means for receiving an indication of the first group of carriers partitioned by the network access device to be carried by the first transmit beam having the first beam direction;
means for receiving an indication of the different second group of carriers partitioned by the network access device to be carried by the different second transmit beam having the different second beam direction; and
means for receiving, via the first transmit beam having the first beam direction and via the first group of carriers and based at least in part on the indication of the first group of carriers and the indication of the different second group of carriers, one or more transmissions comprising a scheduling grant to schedule the UE for communications on the different second transmit beam associated with the different second group of carriers.
20. A non-transitory computer-readable medium storing code for multicarrier beamformed wireless communication by a user equipment (UE) with a network access device, the network access device configured to partition a plurality of carriers into a plurality of groups including a first group of carriers to be carried by a first transmit beam having a first beam direction and a different second group of carriers to be carried by a different second transmit beam having a different second beam direction, the code comprising instructions executable by a processor to:
receive an indication of the first group of carriers partitioned by the network access device to be carried by the first transmit beam having the first beam direction;
receive an indication of the different second group of carriers partitioned by the network access device to be carried by the different second transmit beam having the different second beam direction; and
receive, via the first transmit beam having the first beam direction and via the first group of carriers and based at least in part on the indication of the first group of carriers and the indication of the different second group of carriers, one or more transmissions comprising a scheduling grant to schedule the UE for communications on the different second transmit beam associated with the different second group of carriers.