Joint procedure for beam management and partial control beam failure recovery
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.
1. A method, comprising:
determining, by a user equipment comprising a processor, a partial control beam failure wherein fewer than all beams of a selected control channel search space, with respective threshold values, have measured reference signal received power values that do not satisfy the respective threshold values; and
in response to the determining, transmitting, by the user equipment to network equipment, a partial control beam failure report via a physical uplink control channel that is the physical uplink control channel for a beam management procedure.
2. The method of claim 1 , wherein transmitting the partial control beam failure report to the network equipment further comprises reporting an index of a selected control channel beam in association with a measured reference signal received power value.
3. The method of claim 1 , wherein transmitting the partial control beam failure report to the network equipment further comprises transmitting the partial control beam failure report via a selected control channel beam.
4. The method of claim 1 , further comprising receiving, by the user equipment, the threshold values from the network equipment, in which a threshold value of the threshold values is based on a quality of service characteristic for an associated selected control channel beam.
5. The method of claim 1 , further comprising receiving, by the user equipment, the threshold values from the network equipment, in which a threshold value of the threshold values is based on a reference signal type.
6. The method of claim 1 , wherein the respective threshold values of the fewer than all of the beams are first respective threshold values, and wherein the partial control beam failure is indicative that other beams of the beams, other than the fewer than all of the beams, have satisfied second respective threshold values of the threshold values applicable to the other beams.
7. The method of claim 1 , wherein the beams are arranged in subgroups of a larger group, and further comprising performing, by the user equipment, the beam management procedure comprising reporting a maximum channel state information reference signal for each subgroup of the subgroups.
8. 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:
determining a partial control beam failure wherein fewer than all beams of a selected control channel search space, with respective threshold values, have measured reference signal received power values that do not satisfy the respective threshold values; and
in response to the determining, transmitting, to network equipment, a partial control beam failure report via a physical uplink control channel that is the physical uplink control channel for a beam management procedure.
9. The user equipment of claim 8 , wherein transmitting the partial control beam failure report to the network equipment further comprises reporting an index of a selected control channel beam in association with a measured reference signal received power value.
10. The user equipment of claim 8 , wherein transmitting the partial control beam failure report to the network equipment further comprises transmitting the partial control beam failure report via a selected control channel beam.
11. The user equipment of claim 8 , wherein the operations further comprise receiving the threshold values from the network equipment, in which at least one threshold value of the threshold values is based on a quality of service characteristic for an associated selected control channel beam.
12. The user equipment of claim 8 , wherein the operations further comprise receiving threshold values from the network equipment, in which at least one threshold value of the threshold values is based on a reference signal type.
13. The user equipment of claim 8 , wherein the respective threshold values of the fewer than all of the beams are first respective threshold values, and wherein the partial control beam failure is indicative that other beams of the beams, other than the fewer than all of the beams, have satisfied second respective threshold values of the threshold values applicable to the other beams.
14. The user equipment of claim 8 , wherein the beams are arranged in subgroups of a larger group, and wherein the operations further comprise performing the beam management procedure comprising reporting a maximum channel state information reference signal for each subgroup of the subgroups.
15. 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:
determining a partial control beam failure wherein fewer than all beams of a selected control channel search space, with respective threshold values, have measured reference signal received power values that do not satisfy the respective threshold values; and
in response to the determining, transmitting, to a network device, a partial control beam failure report via a physical uplink control channel that is the physical uplink control channel for a beam management procedure.
16. The non-transitory machine-readable medium of claim 15 , wherein transmitting the partial control beam failure report to the network device further comprises reporting an index of a selected control channel beam in association with a measured reference signal received power value.
17. The non-transitory machine-readable medium of claim 15 , wherein transmitting the partial control beam failure report to the network device further comprises transmitting the partial control beam failure report via a selected control channel beam.
18. The non-transitory machine-readable medium of claim 15 , wherein the operations further comprise receiving the threshold values from the network device, in which at least one threshold value of the threshold values is based on a quality of service characteristic for an associated selected control channel beam.
19. The non-transitory machine-readable medium of claim 15 , wherein the operations further comprise receiving threshold values from the network device, in which at least one threshold value of the threshold values is based on a reference signal type.
20. The non-transitory machine-readable medium of claim 15 , wherein the respective threshold values of the fewer than all of the beams are first respective threshold values, and wherein the partial control beam failure is indicative that other beams of the beams, other than the fewer than all of the beams, have satisfied second respective threshold values of the threshold values applicable to the other beams.