Beam selection and radio link failure during beam recovery
AssigneeQUALCOMM Incorporated
InventorsSumeeth NAGARAJA, Tao LUO
Life of this patent
Estimating the term…
Abstract
Certain aspects of the present disclosure relate to methods and apparatus for beam recovery and radio link failure (RLF) in communications systems using beamforming and operating according to new radio (NR) technologies. An exemplary method that may be performed by a UE includes communicating using beamforming with a base station (BS) via a transmit beam and a receive beam of an active beam pair and obtaining an indication of one or more alternative beams for the UE to use to send a beam recovery message to the BS in the event the transmit beam and the receive beam of the active beam pair become misaligned.
Claims10
A method for wireless communications performed by a base station (BS), comprising:
- communicating using beamforming with a user equipment (UE) via a transmit beam and a receive beam of an active beam pair;
- and
- sending a configuration to the UE indicating a number of failed beam recovery attempts, of the active beam pair, to cause the UE to take action regarding a radio link failure (RLF) procedure.
A method for wireless communications performed by a user equipment (UE), comprising:
- communicating using beamforming with a base station (BS) via a transmit beam and a receive beam of an active beam pair;
- obtaining a configuration from the BS indicating a number of failed beam recovery attempts, of the active beam pair, to cause the UE to take action regarding a radio link failure (RLF) procedure;
- and
- taking action regarding the RLF procedure, based on making the indicated number of failed beam recovery attempts of the active beam pair.
An apparatus for wireless communications by a base station (BS), comprising:
- one or more processors configured to execute instructions stored on one or more memories and to cause the BS to:
- communicate using beamforming with a user equipment (UE) via a transmit beam and a receive beam of an active beam pair;
- and
- send a configuration to the UE indicating a number of failed beam recovery attempts, of the active beam pair, to cause the UE to take action regarding a radio link failure (RLF) procedure.
An apparatus for wireless communications by a user equipment (UE), comprising:
- one or more processors configured to execute instructions stored on one or more memories and to cause the UE to:
- communicate using beamforming with a base station (BS) via a transmit beam and a receive beam of an active beam pair;
- obtain a configuration from the BS indicating a number of failed beam recovery attempts, of the active beam pair, to cause the UE to take action regarding a radio link failure (RLF) procedure;
- and
- take action regarding the RLF procedure, based on making the indicated number of failed beam recovery attempts of the active beam pair.
Dependencies are inferred from the claim text.