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US 10,257,836 B1Granted
Joint procedure for beam management and partial control beam failure recovery
AssigneeAT&T Intellectual Property I, L.P.
InventorsXiaoyi Wang, Salam Akoum, Arunabha Ghosh
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Abstract
The described technology is generally directed towards a joint procedure in wireless communications for reporting a partial beam failure or performing beam management when no beams have failed. The joint procedure reports the beam management reference signal received power and control beam recovery on a common feedback channel, which avoids the need for a reserved, dedicated feedback channel resource for beam recovery. Also described is configuring a possibly different failure threshold for each selected beam, whereby the network can configure different beams to have different reliability/quality-of-service levels for example.
Claims20
A method, comprising:
- obtaining, by a user equipment comprising a processor, threshold values, wherein the threshold values are associated with respective beams of a selected control channel search space;
- comparing, by the user equipment, respective measured reference signal received power values of the respective beams with the threshold values associated with the respective beams;
- determining, by the user equipment, that a first measured reference signal received power value of a first selected control channel beam, of the respective measured reference signal received power values of the respective beams, does not satisfy a first function of a first threshold value associated with the first selected control channel beam, and that a second measured reference signal received power value of a second selected control channel beam, of the respective measured reference signal received power values of the respective beams, satisfies a second function of a second threshold value associated with the second selected control channel beam;
- and
- in response to the determining, reporting, by the user equipment, a partial control beam failure to a network device, wherein the reporting the partial control beam failure to the network device comprises transmitting a partial control beam failure report via a physical uplink control channel that is the physical uplink control channel used for a beam management procedure.
2 more elements
A user equipment, comprising:
- a processor;
- and
- a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, the operations comprising:
- obtaining threshold values, wherein each threshold value is associated with a selected control channel beam of control channel beams;
- for each selected control channel beam, comparing a measured reference signal received power value of the selected control channel beam with the threshold value associated with the selected control channel beam;
- and
- in response to a result of a determination being that, for each measured reference signal received power value of each selected control channel beam, a measured reference signal received power value of the selected control channel beam has achieved the threshold value associated with the selected control channel beam, and another measured reference signal received power value of the selected control channel beam has not achieved the threshold value associated with the selected control channel beam, reporting a partial control beam failure to a network device;
- and
- in response to the result of the determination being that, for each measured reference signal received power value of each selected control channel beam, the measured reference signal received power value of each selected control channel beam has not achieved the threshold value associated with the selected control channel beam, performing a beam recovery procedure.
6 more elements
A non-transitory machine-readable medium,
- comprising executable instructions that, when executed by a processor of a user equipment, facilitate performance of operations, the operations comprising:
- obtaining respective reference signal received power measurements for selected control channel beams;
- for at least a first selected control channel beam and a second selected control channel beam of the selected control channel beams, determining whether the selected control channel beam has failed based on an evaluation criterion;
- and
- in response to the first selected control channel beam of the selected control channel beams being determined to have failed and the second selected control channel beam of the selected control channel beams being determined not to have failed, reporting a partial control beam failure via a physical uplink control channel used to report information to a network device;
- and
- in response to determining that no selected control channel beam of the selected control channel beams has failed, performing a beam management procedure that uses the physical uplink control channel to report to the network device.
4 more elements
Dependencies are inferred from the claim text.