Beam Failure Detection and Candidate Beam Detection Operations for Multi-Receiver Downlink
AssigneeApple Inc.
InventorsXiang CHEN, Dawei ZHANG, Haitong SUN, Jie CUI, Qiming LI, Yang TANG
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Abstract
A user equipment (UE) communicates with a base station having a first transmission and reception point (TRP) and a second TRP. The UE is configured to determine a beam failure for a first beam transmitted by the first TRP and perform a candidate beam detection (CBD) operation to evaluate candidate beams for communicating with the first TRP, wherein the CBD operation comprises determining whether each candidate beam is compatible with an active beam being transmitted to the UE by the second TRP.
Claims21
A method performed by a user equipment (UE) communicating with a base station comprising a first transmission and reception point (TRP) and a second TRP, the method comprising:
- determining a beam failure for a first beam transmitted by the first TRP;
- and
- performing a candidate beam detection (CBD) operation to evaluate candidate beams for communicating with the first TRP, wherein the CBD operation comprises determining whether each candidate beam is compatible with an active beam being transmitted to the UE by the second TRP.
A method performed by a base station that is communicating with a user equipment using a first beam from a first transmission and reception point and a second beam from a second TRP, the method comprising:
- receiving a beam failure detection (BFD) notification from the UE indicating that the first beam of the first TRP has experienced a beam failure;
- and
- determining whether the BFD notification comprises a new candidate beam to communicate with the UE using the first TRP.
21-22. (canceled)
Dependencies are inferred from the claim text.