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US 11,082,118 B2Granted
Methods for assisting in beam sweeping, tracking and recovery
AssigneeQUALCOMM Incorporated
InventorsVasanthan Raghavan, Sundar Subramanian, Juergen Cezanne, Ashwin Sampath, Junyi Li
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Abstract
Certain aspects of the present disclosure provide various appropriate frame structures, sweep sequences, and procedures that may assist in beam sweeping, tracking and recovery.
Claims65
A method for wireless communications by a user equipment (UE), comprising:
- in response to a beam loss between the UE and a network entity, the beam loss associated with a wireless communication link between the UE and the network entity:
- transmitting a beam acknowledgement report to the network entity;
- and
- participating in a beam recovery procedure via a sequence over which at least one of i) transmit beams of the network entity or ii) receive beams of the UE are scanned over a contiguous set of symbols, wherein the sequence comprises at least a first portion wherein the UE changes receive beams for different symbols of the contiguous set of symbols while receiving a same first transmit beam of the network entity.
1 more element
An apparatus, comprising:
- a memory comprising executable instructions;
- and
- a processor in data communication with the memory and configured to execute the instructions to cause the apparatus to perform a method, the method comprising:
- in response to a beam loss between the apparatus and a network entity, the beam loss associated with a wireless communication link between the apparatus and the network entity:
- transmitting a beam acknowledgement report to the network entity;
- and
- participating in a beam recovery procedure via a sequence over which at least one of i) transmit beams of the network entity or ii) receive beams of the apparatus are scanned over a contiguous set of symbols, wherein the sequence comprises at least a first portion wherein the apparatus changes receive beams for different symbols of the contiguous set of symbols while receiving a same first transmit beam of the network entity.
4 more elements
A method for wireless communications by a network entity, comprising:
- receiving a beam acknowledgement report from a user equipment (UE), in response to a beam loss between the UE and the network entity, the beam loss associated with a wireless communication link between the UE and the network entity;
- and
- participating in a beam recovery procedure via a sequence over which at least one of i) transmit beams of the network entity or ii) receive beams of the UE are scanned over a contiguous set of symbols, wherein the sequence comprises at least a first portion wherein the network entity uses a same first transmit beam for different symbols of the contiguous set of symbols, and wherein the network entity signals beam selection assistance information to the UE indicating to the UE to change receive beams for receiving the same first transmit beam for the different symbols of the contiguous set of symbols.
An apparatus, comprising:
- a memory comprising executable instructions;
- and
- a processor in data communication with the memory and configured to execute the instructions to cause the apparatus to perform a method, the method comprising:
- receiving a beam acknowledgement report from a user equipment (UE), in response to a beam loss between the UE and the apparatus, the beam loss associated with a wireless communication link between the UE and the apparatus;
- and
- participating in a beam recovery procedure via a sequence over which at least one of i) transmit beams of the apparatus or ii) receive beams of the UE are scanned over different symbols of a contiguous set of symbols, wherein the sequence comprises at least a first portion wherein the apparatus uses a same first transmit beam for different symbols of the contiguous set of symbols, and wherein the apparatus signals beam selection assistance information to the UE indicating to the UE to change receive beams for receiving the same first transmit beam for the different symbols of the contiguous set of symbols.
3 more elements
A user equipment (UE) configured for wireless communication, comprising:
- at least one processor;
- a memory communicatively coupled to the at least one processor;
- and
- a transceiver communicatively coupled to the at least one processor, wherein the at least one processor is configured to:
- in response to a beam loss between the UE and a network entity, the beam loss associated with a wireless communication link between the UE and the network entity:
- utilize the transceiver to transmit a beam acknowledgement report to the network entity;
- and
- utilize the transceiver to participate in a beam recovery procedure via a sequence over which at least one of i) transmit beams of the network entity or ii) receive beams of the UE are scanned over a contiguous set of symbols, wherein the sequence comprises at least a first portion wherein the UE changes receive beams for different symbols of the contiguous set of symbols while receiving a same first transmit beam of the network entity.
5 more elements
A network entity, comprising:
- at least one processor;
- a memory communicatively coupled to the at least one processor;
- and
- a transceiver communicatively coupled to the at least one processor, wherein the at least one processor is configured to:
- utilize the transceiver to receive a beam acknowledgement report from a user equipment (UE), in response to a beam loss between the UE and the network entity, the beam loss associated with a wireless communication link between the UE and the network entity;
- and
- utilize the transceiver to participate in a beam recovery procedure via a sequence over which at least one of i) transmit beams of the network entity or ii) receive beams of the UE are scanned over a contiguous set of symbols, wherein the sequence comprises at least a first portion wherein the network entity uses a same first transmit beam for different symbols of the contiguous set of symbols, and wherein the network entity signals beam selection assistance information to the UE indicating to the UE to change receive beams for receiving the same first transmit beam for the different symbols of the contiguous set of symbols.
4 more elements
Dependencies are inferred from the claim text.