Resources for channel measurements
Methods, systems, and devices for wireless communications are described. A base station may identify resources associated with a beamformed signal, the identified resources being used by a user equipment (UE) for channel measurements of the beamformed signal, the beamformed signal being one of a plurality of beamformed signals. The base station may generate a signal indicating at least a portion of the identified resources and transmit the signal to the UE. The UE may receive the signal and perform a channel measurement of the beamformed signal using the indicated resources. The UE may transmit, to the base station, a measurement report comprising the channel measurement associated with the beamformed signal.
1. A method for wireless communication, comprising:
identifying resources associated with a beamformed signal, the identified resources to be used by a user equipment (UE) for channel measurements of the beamformed signal, the beamformed signal being one of a plurality of beamformed signals;
generating a signal indicating at least a portion of the identified resources to be used for channel measurements, wherein generating the signal comprises applying a mask to a bit or field in the signal to indicate the identified resources, wherein the mask indicates a system frame number (SFN), a slot index, a symbol index, or a combination; and
transmitting the signal to the UE.
2. The method of claim 1 , further comprising:
receiving, based at least in part on the identified resources, a measurement report associated with the beamformed signal.
3. The method of claim 1 , further comprising:
identifying a receive beam of the UE used for receiving a previous beamformed signal; and
generating the signal to indicate the receive beam, wherein the identified resources comprise the receive beam.
4. The method of claim 1 , further comprising:
generating at least one of: a system information signal, or a radio resource control (RRC) signal, or a handover message, or combinations thereof, the handover message indicating at least a portion of the identified resources.
5. The method of claim 1 , further comprising:
configuring at least one of: a media access control (MAC) control element (CE), or a downlink control information (DCI), or combinations thereof, to enable the channel measurements by the UE using the identified resources.
6. The method of claim 1 , further comprising:
determining that a measurement report received from the UE comprises an interference level satisfying a threshold for a subset of resources, wherein the identified resources are based at least in part on the subset of resources.
7. The method of claim 1 , further comprising:
identifying a set of resources associated with one or more neighboring base stations located proximate to the UE; and
generating the signal to indicate the set of resources.
8. The method of claim 7 , further comprising:
coordinating with the one or more neighboring base stations to identify the set of resources.
9. The method of claim 1 , wherein the identified resources comprise at least a time resource indicated as a system frame number (SFN), a slot index, a symbol index, or combinations thereof, and further include quasi co-location (QCL) information.
10. The method of claim 1 , wherein the identified resources are associated with at least one of: a physical downlink control channel (PDCCH) region, or a physical downlink shared channel (PDSCH) region, or a physical uplink control channel (PUCCH) region, or a physical uplink shared channel (PUSCH) region, or a combination thereof, of a transmission.
11. A method for wireless communication, comprising:
receiving a signal from a base station indicating resources to be used for a beamformed signal within a plurality of beamformed signals, wherein the signal indicates the resources using a mask to a bit or field indicating a system frame number (SFN), a slot index, a symbol index, or a combination;
performing a channel measurement of the beamformed signal using the indicated resources; and
transmitting, to the base station, a measurement report comprising the channel measurement associated with the beamformed signal.
12. The method of claim 11 , further comprising:
transmitting a previous measurement report identifying a receive beam used for measurements on the beamformed signal, wherein the signal comprises an indication of the receive beam.
13. The method of claim 11 , further comprising:
performing, based at least in part on the signal, the channel measurement on at least one beamformed signal from or more neighboring base stations.
14. The method of claim 11 , further comprising:
determining, based at least in part on the channel measurement, that an interference level of the beamformed signal exceeds a threshold; and
omitting an indication of the interference level from the measurement report.
15. An apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
identify resources associated with a beamformed signal, the identified resources to be used by a user equipment (UE) for channel measurements of the beamformed signal, the beamformed signal being one of a plurality of beamformed signals;
generate a signal indicating at least a portion of the identified resources to be used for channel measurements, wherein the generated signal includes a mask applied to a bit or field to indicate the identified resources, wherein the mask indicates a system frame number (SFN), a slot index, a symbol index, or a combination; and
transmit the signal to the UE.
16. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
receive, based at least in part on the identified resources, a measurement report associated with the beamformed signal.
17. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
identify a receive beam of the UE used for receiving a previous beamformed signal; and
generate the signal to indicate the receive beam, wherein the identified resources comprise the receive beam.
18. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
generate at least one of: a system information signal, or a radio resource control (RRC) signal, or a handover message, or combinations thereof, the handover message indicating at least a portion of the identified resources.
19. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
configure at least one of: a media access control (MAC) control element (CE), or a downlink control information (DCI), or combinations thereof, to enable the channel measurements by the UE using the identified resources.
20. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
determine that a measurement report received from the UE comprises an interference level satisfying a threshold for a subset of resources, wherein the identified resources are based at least in part on the subset of resources.
21. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:
identify a set of resources associated with one or more neighboring base stations located proximate to the UE; and
generate the signal to indicate the set of resources.
22. The apparatus of claim 21 , wherein the instructions are further executable by the processor to cause the apparatus to:
coordinate with the one or more neighboring base stations to identify the set of resources.
23. The apparatus of claim 15 , wherein the identified resources comprise at least a time resource indicated as a system frame number (SFN), a slot index, a symbol index, or combinations thereof, and further include quasi co-location (QCL) information.
24. The apparatus of claim 15 , wherein the identified resources are associated with at least one of: a physical downlink control channel (PDCCH) region, or a physical downlink shared channel (PDSCH) region, or a physical uplink control channel (PUCCH) region, or a physical uplink shared channel (PUSCH) region, or a combination thereof, of a transmission.
25. An apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive a signal from a base station indicating resources to be used for a beamformed signal within a plurality of beamformed signals, wherein the signal indicates the resources using a mask to a bit or field indicating a system frame number (SFN), a slot index, a symbol index, or a combination;
perform a channel measurement of the beamformed signal using the indicated resources; and
transmit, to the base station, a measurement report comprising the channel measurement associated with the beamformed signal.
26. The apparatus of claim 25 , wherein the instructions are further executable by the processor to cause the apparatus to:
transmit a previous measurement report identifying a receive beam used for measurements on the beamformed signal, wherein the signal comprises an indication of the receive beam.
27. The apparatus of claim 25 , wherein the instructions are further executable by the processor to cause the apparatus to:
perform, based at least in part on the signal, the channel measurement on at least one beamformed signal from or more neighboring base stations.
28. The apparatus of claim 25 , wherein the instructions are further executable by the processor to cause the apparatus to:
determine, based at least in part on the channel measurement, that an interference level of the beamformed signal exceeds a threshold; and
omit an indication of the interference level from the measurement report.