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US 12,597,980 B2Granted
Method and apparatus for detecting beam failure
Assignee1FINITY Inc.
InventorsMeiyi Jia, Xin Wang, Yang Lu, Su Yi
Life of this patent
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Abstract
A method and an apparatus for detecting beam failure. The method comprises: receiving a beam failure instance indication by a medium access control (MAC) entity of a terminal equipment, incrementing a transmission reception point (TRP)-specific beam failure indication count by 1, and in a case where the TRP-specific beam failure indication count is greater than or equal to a TRP-specific beam failure instance maximum count, determining that a beam failure occurs in a transmission reception point or beam failure recovery (BFR) of the transmission reception point is triggered or a beam failure indication of the transmission reception point is triggered.
Claims18
An apparatus for detecting beam failure for a beam failure detection reference signal (BFD-RS) set of a serving cell, comprising:
- a receiver configured to receive a beam failure instance indication by a medium access control entity;
- and
- processor circuitry configured to:
- increment a beam failure indication count of a beam failure detection reference signal set by 1;
- and
- configure the serving cell with two BFD-RS sets including the BFD-RS set;
- in a case where the beam failure indication count of the beam failure detection reference signal set is greater than or equal to a beam failure instance maximum count for beam failure detection reference signal set, trigger beam failure recovery for the beam failure detection reference signal set of the serving cell,
- wherein the medium access control entity triggers a scheduling request used for beam failure recovery of beam failure detection reference signal set for which beam failure recovery is triggered and not cancelled,
- wherein the scheduling request configures a scheduling request ID or a group of scheduling request IDs, and
- wherein when the medium access control entity has a pending scheduling request for beam failure recovery of beam failure detection reference signal set, the medium access control entity has one or more physical uplink control channel resources overlapping with physical uplink control channel resources of beam failure recovery of beam failure detection reference signal set for a scheduling request transmission occasion, the medium access control entity determines that the physical uplink control channel resources of the beam failure recovery of beam failure detection reference signal set are valid.
7 more elements
A method for detecting beam failure for a beam failure detection reference signal (BFD-RS) set of a serving cell, comprising:
- receiving a beam failure instance indication by a medium access control entity of a terminal equipment;
- incrementing a beam failure indication count of a beam failure detection reference signal set by 1;
- and
- configure the serving cell with two BFD-RS sets including the BFD-RS set;
- in a case where the beam failure indication count of the beam failure detection reference signal set is greater than or equal to a beam failure instance maximum count for beam failure detection reference signal set, triggering beam failure recovery for the beam failure detection reference signal set of the serving cell,
- wherein the medium access control entity triggers a scheduling request used for beam failure recovery of beam failure detection reference signal set for which beam failure recovery is triggered and not cancelled,
- wherein the scheduling request configures a scheduling request ID or a group of scheduling request IDs, and
- wherein when the medium access control entity has a pending scheduling request for beam failure recovery of beam failure detection reference signal set, the medium access control entity has one or more physical uplink control channel resources overlapping with physical uplink control channel resources of beam failure recovery of beam failure detection reference signal set for a scheduling request transmission occasion, the medium access control entity determines that the physical uplink control channel resources of the beam failure recovery of beam failure detection reference signal set are valid.
5 more elements
A communication system, comprising:
- a terminal equipment, configured to:
- receive a beam failure instance indication by a medium access control entity,
- increment a beam failure indication count of a beam failure detection reference signal set (BFD-RS) by 1, and
- configure a serving cell with two BFD-RS sets including the BFD-RS set;
- in a case where the beam failure indication count of the beam failure detection reference signal set is greater than or equal to a beam failure instance maximum count for beam failure detection reference signal set, trigger beam failure recovery for beam failure detection reference signal set of the serving cell,
- wherein the medium access control entity triggers a scheduling request used for beam failure recovery of beam failure detection reference signal set for which beam failure recovery is triggered and not cancelled,
- wherein the scheduling request configures a scheduling request ID or a group of scheduling request IDs, and
- wherein when the medium access control entity has a pending scheduling request for beam failure recovery of beam failure detection reference signal set, the medium access control entity has one or more physical uplink control channel resources overlapping with physical uplink control channel resources of beam failure recovery of beam failure detection reference signal set for a scheduling request transmission occasion, the medium access control entity determines that the physical uplink control channel resources of the beam failure recovery of beam failure detection reference signal set are valid.
5 more elements
Dependencies are inferred from the claim text.