Beam failure recovery method and apparatus in wireless communication system
AssigneeLG Electronics Inc.
InventorsJiwon Kang, Hyungtae Kim, Haewook Park, Seongwon Go
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Abstract
A method and apparatus for performing beam failure recovery in a wireless communication system are disclosed. A method for performing beam failure recovery by a user equipment according to embodiment of the present disclosure may include transmitting, to a base station, capability information including a maximum number of BFD-RSs per a BFD-RS set supported by the UE and receiving, from the base station, configuration information including information related to at least one BFD-RS set, and each of the at least one BFD-RS set may include the maximum number of BFD-RSs or less.
Claims11
A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
- transmitting, to a base station, capability information related to a beam failure recovery (BFR) including a maximum number of beam failure detection-reference signal (BFD-RS) resources per a BFD-RS set per a bandwidth part (BWP);
- and
- receiving, from the base station, configuration information including information related to at least one transmission configuration indicator (TCI) state configured for at least one of a first control resource set (CORESET) group or a second CORESET group,
- wherein based on a radio resource control (RRC) signaling for configuring a first BFD-RS set or a second BFD-RS set being not received from the base station:
- based on a number of active TCI states configured for the first CORESET group corresponding to the first BFD-RS set or the second CORESET group corresponding to the second BFD-RS set being more than the maximum number of the BFD-RS resources, the first BFD-RS set or the second BFD-RS set is determined to include at least one BFD-RS resource associated with the active TCI states for the first CORESET group or the second CORESET group.
A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
- at least one transceiver;
- and
- at least one processor coupled to the at least one transceiver,
- the at least one processor is configured to:
- transmit, to a base station, capability information related to a beam failure recovery (BFR) including a maximum number of beam failure detection-reference signal (BFD-RS) resources per a BFD-RS set per a bandwidth part (BWP), through the at least one transceiver;
- and
- receive, from the base station, configuration information including information related to at least one transmission configuration indicator (TCI) state configured for at least one of a first control resource set (CORESET) group or a second CORESET group, through the at least one transceiver,
- wherein based on a radio resource control (RRC) signaling for configuring a first BFD-RS set or a second BFD-RS set being not received from the base station:
- based on a number of active TCI states configured for the first CORESET group corresponding to the first BFD-RS set or the second CORESET group corresponding to the second BFD-RS set being more than the maximum number of the BFD-RS resources, the first BFD-RS set or the second BFD-RS set is determined to include at least one BFD-RS resource associated with the active TCI states for the first CORESET group or the second CORESET group.
A method performed by a base station in a wireless communication system, the method comprising:
- receiving, from a user equipment (UE), capability information related to a beam failure recovery (BFR) including a maximum number of beam failure detection-reference signal (BFD-RS) resources per a BFD-RS set per a bandwidth part (BWP);
- and
- transmitting, to the UE, configuration information including information related to at least one transmission configuration indicator (TCI) state configured for at least one of a first control resource set (CORESET) group or a second CORESET group,
- wherein based on a radio resource control (RRC) signaling for configuring a first BFD-RS set or a second BFD-RS set being not transmitted to the UE:
- based on a number of active TCI states configured for the first CORESET group corresponding to the first BFD-RS set or the second CORESET group corresponding to the second BFD-RS set being more than the maximum number of the BFD-RS resources, the first BFD-RS set or the second BFD-RS set is determined to include at least one BFD-RS resource associated with the active TCI states for the first CORESET group or the second CORESET group.
Dependencies are inferred from the claim text.