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1. (WO2019067014) BEAM-SPECIFIC POWER CONTROL
注意: このテキストは、OCR 処理によってテキスト化されたものです。法的な用途には PDF 版をご利用ください。

CLAIMS

What is claimed is:

1. One or more computer-readable media having instructions that, when executed by one or more processors, cause a user equipment ("UE") to:

process configuration information to determine a power control ("PC") parameter set of a PC process that is beam-specific, the PC parameter set to include a path loss scaling factor, a command to perform a closed-loop PC process, or a path loss change parameter to be used to trigger a power headroom report ("PHR"); and

perform a PC procedure based on the PC parameter set.

2. The one or more computer-readable media of claim 1, wherein the PC parameter set further includes an indication of a downlink reference signal that defines a downlink beam associated with the PC process or an indication of a beam-pair link that includes the downlink reference signal and an uplink sounding reference signal.

3. The one or more computer-readable media of claim 2, wherein the PC parameter set includes the path loss change parameter and to perform the PC procedure, the UE is to: calculate a path loss estimate based on the downlink reference signal;

determine the PHR is triggered based on the path loss estimate and the path loss change parameter; and

generate and cause the PHR to be sent based on determination that the PHR is triggered.

4. The one or more computer-readable media of claim 1 or 2, wherein the PC parameter set includes the command to perform the closed-loop PC process and the PC procedure is the closed-loop PC process.

5. The one or more computer-readable media of claim 1 or 2, wherein the configuration information has a plurality of PC parameter sets that correspond to a respective plurality of PC processes and the instructions, when executed, further cause the UE to perform individual PC procedures that correspond to individual PC processes of the plurality of PC processes.

6. The one or more computer-readable media of claim 1 or 2, wherein the instructions, when executed, further cause the UE to:

determine a downlink receive beam for a configured downlink reference signal; and select an uplink receive beam that corresponds to the downlink receive beam.

7. The one or more computer-readable media of claim 6, wherein the instructions, when executed, further cause the UE to:

determine the downlink receive beam based on explicit or implicit signaling by a next generation node B ("gNB").

8. The one or more computer-readable media of claim 1 or 2, wherein the instructions, when executed, further cause the UE to:

determine a downlink control channel resource set ("CORESET") that includes physical downlink control channel ("PDCCH") candidates for downlink and uplink data assignments is quasi co-located ("QCL") with a first downlink reference signal;

detect a PDCCH of the downlink CORESET that schedules a downlink data assignment or an uplink data assignment;

determine a downlink receive beam or an uplink transmit beam that corresponds to the downlink transmit beam used to transmit the PDCCH; and

use the determined downlink receive beam or the uplink transmit beam for the downlink data assignment or the uplink data assignment, respectively.

9. The one or more computer-readable media of claim 8, wherein the instructions, when executed, further cause the UE to:

determine the PDCCH schedules an uplink data assignment for a physical uplink shared channel ("PUSCH"); and

cause the PUSCH to be transmitted in the uplink data assignment with the determined uplink transmit beam.

10. The one or more computer-readable media of claim 1 or 2, wherein the instructions when executed, further cause the UE to:

determine a downlink control channel resource set ("CORESET") that includes physical downlink control channel ("PDCCH") candidates for downlink and uplink data

assignments is quasi co-located ("QCL") with a beam pair link that includes a downlink reference signal and a sounding reference signal;

detect a PDCCH of the downlink CORESET that schedules a physical uplink control channel ("PUSCH");

determine an uplink transmit beam that corresponds to the sounding reference signal; and cause the PUSCH to be transmitted with the uplink transmit beam.

11. The one or more computer-readable media of claim 1 or 2, wherein the instructions, when executed, further cause the UE to:

process the configuration information to determine a plurality of PC parameter sets;

process uplink data scheduling information to determine an index that corresponds to a first PC parameter set of the plurality of PC parameter sets;

determine an uplink transmit beam based on a downlink beam associated with the first PC parameter set; and

conduct, based on a command in the first PC parameter set, a closed-loop PC process to determine a transmission power for the uplink transmit beam.

12. The one or more computer-readable media of claim 1 or 2, wherein the instructions, when executed, further cause the UE to:

calculate a power headroom value based on the PC parameter set.

13. The one or more computer-readable media of claim 12, wherein the power headroom value is PHf! [t] and equals PCMAX.C ~ [PO,PUSCH + ac PLbc + g [t] c} , where b is a beam index, c is a serving cell index, P MAX.C is a maximum UE transmission power of beam b in serving cell c, PO,PUSCH is a reference receive power of a physical uplink shared channel ("PUSCH"), acb is a configured scaling factor of path loss in beam b of serving cell c, PLbc is a path loss estimate of beam b in serving cell c, and g [t\b is a command to perform a closed-loop PC process at subframe t for beam b in serving cell c.

14. The one or more computer-readable media of claim 13, wherein the maximum UE transmission power in beam b is based on an effect of an off-boresight main beam due to UE antenna rotation.

15. The one or more computer-readable media of claim 1 or 2, wherein the PC parameter set is a first PC parameter set, the PC process is a first PC process that is specific to a downlink reference signal and the instructions, when executed, further cause the UE to: process the configuration information to determine a second PC parameter set of a second PC process that is specific to a beam-pair link ("BPL").

16. An apparatus to be implemented in a user equipment ("UE"), the apparatus comprising:

memory; and

processing circuitry, coupled with the memory, to receive configuration information from an access node and store, in the memory based on the configuration information, a power control ("PC") parameter set of a PC process that corresponds to a downlink ("DL") reference signal ("RS") or a beam-pair link ("BPL"); and

perform a PC procedure with respect to the DL RS or the BPL based on the PC parameter set.

17. The apparatus of claim 16, wherein the PC parameter set is to include a path loss scaling factor, a command to perform a closed-loop PC process, or a path loss change parameter to be used to trigger a power headroom report ("PHR").

18. The apparatus of claim 17, wherein the PC parameter set includes the path loss change parameter and to perform the PC procedure, the processing circuitry is to:

calculate a path loss estimate based on the downlink reference signal or BPL;

determine the PHR is triggered based on the path loss estimate and the path loss change parameter; and

generate and cause the PHR to be sent based on determination that the PHR is triggered.

19. The apparatus of claim 17, wherein the PC parameter set includes the command to perform the closed-loop PC process and the PC procedure is the closed-loop PC process.

20. The apparatus of claim 16, wherein the PC parameter set is a first PC parameter set, the PC process is a first PC process that is specific to the DL RS and the processing circuitry is further to:

process the configuration information to determine a second PC parameter set of a second PC process that is specific to a beam pair link ("BPL").

21. The apparatus of any one of claims 16-20, wherein the processing circuitry is further to receive power control command from the access node and the apparatus further comprises: a power management interface coupled with the processing circuitry, the power management interface to send power control signals, based on the power control command, to cause the UE to transmit uplink signals with an uplink transmit power.

22. One or more computer-readable media having instructions that, when executed by one or more processors, cause an access node to:

transmit configuration information to a user equipment ("UE") to configure a beam-specific power control ("PC") process with a PC parameter set that includes a path loss scaling factor, a command to perform a closed-loop PC process, or a path loss change parameter to be used to trigger a power headroom report ("PHR");

determine a downlink transmit beam based on a PC procedure; and

signal an indication of the downlink transmit beam to the UE.

23. The one or more computer-readable media of claim 22, wherein the PC parameter set further includes an indication of a downlink reference signal that defines a downlink beam associated with the PC process or an indication of a beam-pair link that includes the downlink reference signal and an uplink sounding reference signal.

24. The one or more computer-readable media of claim 23, wherein the PC parameter set includes the path loss change parameter and the instructions, when executed, further cause the AN to signal the indication using explicit or implicit signaling.

25. The one or more computer-readable media of claim 23, wherein the configuration information is to configure a plurality of beam-specific PC process with a first beam-specific PC process associated with a downlink reference signal and a second beam-specific power control process associated with a beam-pair link.