# US 10,484,950 B1 · Method of power control for uplink transmission

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- Number: US 10,484,950 B1
- Document ID: US10484950B1
- Status: Granted
- Kind: B1
- Application number: 16/503,889
- Filed: 2019-07-05
- Published: 2019-10-31
- Granted: 2019-11-19
- Earliest claimed: 2017-05-05
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Zhengwei Gong; Amine Maaref; Yu Cao; Toufiqul Islam; Weimin Xiao
- Web page: https://patentgrep.com/patent/US10484950B1

## CPC

- H04W 52/146: {Uplink power control}
- H04W 52/18: TPC being performed according to specific parameters
- H04W 52/242: {taking into account path loss}
- H04W 52/365: {Power headroom reporting}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method for uplink transmission by a UE includes obtaining information regarding a plurality of power control sets each having a plurality of power control parameters, wherein a value of at least one parameter in a first power control set is different from a value of the at least one parameter in a second power control set; obtaining information associating at least one of the power control sets with at least one operational property of the UE; and when at least one of the operational properties is in effect on the UE, transmitting a PUSCH using the parameters of the power control set associated with the at least one operational property in effect.

## Claims

### Claim 1

A method for uplink transmission by a user equipment (UE), the method comprising:
obtaining information of an association between sounding reference signal (SRS) resource indication information and a plurality of power control parameters, the plurality of power control parameters comprising a physical uplink shared channel (PUSCH) initial target power, a pathloss, a pathloss compensation factor, and a transmit power command (TPC);
obtaining the SRS resource indication information;
determining a value of the PUSCH initial target power, a value of the pathloss, a value of the pathloss compensation factor, and a value of the TPC based on the association and the obtained SRS resource indication information;
determining a transmission power of a PUSCH in accordance with the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC; and
transmitting the PUSCH using the transmission power.

### Claim 2 (depends on 1)

The method of claim 1, wherein the plurality of power control parameters are associated with a downlink reference signal type, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the downlink reference signal type.

### Claim 3 (depends on 1)

The method of claim 1, wherein the plurality of power control parameters are associated with a resource assignment type, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the resource assignment type.

### Claim 4 (depends on 2)

The method of claim 2, wherein the plurality of power control parameters are associated with a resource assignment type, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the resource assignment type.

### Claim 5 (depends on 1)

The method of claim 1, wherein the plurality of power control parameters are associated with a numerology configuration for the PUSCH, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the numerology configuration.

### Claim 6 (depends on 2)

The method of claim 2, wherein the plurality of power control parameters are associated with a numerology configuration for the PUSCH, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the numerology configuration.

### Claim 7 (depends on 1)

The method of claim 1, wherein the plurality of power control parameters are associated with downlink control information (DCI)-related information, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the DCI-related information.

### Claim 8 (depends on 2)

The method of claim 2, wherein the plurality of power control parameters are associated with a downlink control information (DCI)-related information, and
wherein the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC are determined further based on an association between the plurality of power control parameters and the DCI-related information.

### Claim 9 (depends on 2)

The method of claim 2, wherein the downlink reference signal type comprises one of: a synchronization signal for a layer 3 measurement, or a UE-specific reference signal for a layer 3 measurement.

### Claim 10 (depends on 3)

The method of claim 3, wherein the resource assignment type comprises one of:
a resource assignment based only on downlink control information (DCI),
a resource assignment based on DCI together with at least one of a radio resource control (RRC) signaling or system information, or
a resource assignment based only the RRC signaling or the system information.

### Claim 11 (depends on 7)

The method of claim 7, wherein the DCI-related information comprises at least one of: a DCI format, or a DCI structure.

### Claim 12

An apparatus, comprising:
a non-transitory memory comprising instructions; and
one or more processors in communications with the non-transitory memory, wherein the one or more processors are configured to execute the instructions to:
obtain information of an association between sounding reference signal (SRS) resource indication information and a plurality of power control parameters, the plurality of power control parameters comprising a physical uplink shared channel (PUSCH) initial target power, a pathloss, a pathloss compensation factor, and a transmit power command (TPC);
obtain the SRS resource indication information;
determine a value of the PUSCH initial target power, a value of the pathloss, a value of the pathloss compensation factor, and a value of the TPC based on the association and the SRS resource indication information;
determine a transmission power of a PUSCH in accordance with the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC; and
transmit the PUSCH using the transmission power.

### Claim 13 (depends on 12)

The apparatus of claim 12, wherein the plurality of power control parameters are associated with a downlink reference signal type, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the downlink reference signal type.

### Claim 14 (depends on 12)

The apparatus of claim 12, wherein the plurality of power control parameters are associated with a resource assignment type, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the resource assignment type.

### Claim 15 (depends on 13)

The apparatus of claim 13, wherein the plurality of power control parameters are associated with a resource assignment type, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the resource assignment type.

### Claim 16 (depends on 12)

The apparatus of claim 12, wherein the plurality of power control parameters are associated with a numerology configuration for the PUSCH, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the numerology configuration.

### Claim 17 (depends on 13)

The apparatus of claim 13, wherein the plurality of power control parameters are associated with a numerology configuration for the PUSCH, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the numerology configuration.

### Claim 18 (depends on 12)

The apparatus of claim 12, wherein the plurality of power control parameters are associated with downlink control information (DCI)-related information, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the DCI-related information.

### Claim 19 (depends on 13)

The apparatus of claim 13, wherein the plurality of power control parameters are associated with a downlink control information (DCI)-related information, and
wherein the one or more processors are configured to execute the instructions to determine the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the DCI-related information.

### Claim 20 (depends on 13)

The apparatus of claim 13, wherein the downlink reference signal type comprises one of: a synchronization signal for a layer 3 measurement, or a user equipment (UE)-specific reference signal for a layer 3 measurement.

### Claim 21 (depends on 14)

The apparatus of claim 14, wherein the resource assignment type comprises one of:
a resource assignment based only on downlink control information (DCI),
a resource assignment based on DCI together with at least one of a radio resource control (RRC) signaling or system information, or
a resource assignment based only the RRC signaling or the system information.

### Claim 22 (depends on 18)

The apparatus of claim 18, wherein the DCI-related information comprises at least one of: a DCI format, or a DCI structure.

### Claim 23

A non-transitory computer-readable medium storing computer instructions, that when executed by one or more processors, cause a user equipment to perform the steps of:
obtaining information of an association between sounding reference signal (SRS) resource indication information and a plurality of power control parameters, the plurality of power control parameters comprising a physical uplink shared channel (PUSCH) initial target power, a pathloss, a pathloss compensation factor, and a transmit power command (TPC);
obtaining the SRS resource indication information;
determining a value of the PUSCH initial target power, a value of the pathloss, a value of the pathloss compensation factor, and a value of the TPC based on the association and the obtained SRS resource indication information;
determining a transmission power of a PUSCH in accordance with the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC; and
transmitting the PUSCH using the transmission power.

### Claim 24 (depends on 23)

The non-transitory computer-readable medium of claim 23, wherein the plurality of power control parameters are associated with a downlink reference signal type, and
wherein non-transitory computer-readable medium further stores computer instructions, that when executed by the one or more processors, cause the user equipment to perform the steps of:
determining the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the downlink reference signal type.

### Claim 25 (depends on 23)

The non-transitory computer-readable medium of claim 23, wherein the plurality of power control parameters are associated with a resource assignment type, and
wherein non-transitory computer-readable medium further stores computer instructions, that when executed by the one or more processors, cause the user equipment to perform the steps of:
determining the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the resource assignment type.

### Claim 26 (depends on 23)

The non-transitory computer-readable medium of claim 23, wherein the plurality of power control parameters are associated with a numerology configuration for the PUSCH, and wherein non-transitory computer-readable medium further stores computer instructions, that when executed by the one or more processors, cause the user equipment to perform the steps of:
determining the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the numerology configuration.

### Claim 27 (depends on 23)

The non-transitory computer-readable medium of claim 23, wherein the plurality of power control parameters are associated with downlink control information (DCI)-related information, and
wherein non-transitory computer-readable medium further stores computer instructions, that when executed by the one or more processors, cause the user equipment to perform the steps of:
determining the value of the PUSCH initial target power, the value of the pathloss, the value of the pathloss compensation factor, and the value of the TPC further based on an association between the plurality of power control parameters and the DCI-related information.

### Claim 28 (depends on 24)

The non-transitory computer-readable medium of claim 24, wherein the downlink reference signal type comprises one of: a synchronization signal for a layer 3 measurement, or a user equipment (UE)-specific reference signal for a layer 3 measurement.

### Claim 29 (depends on 25)

The non-transitory computer-readable medium of claim 25, wherein the resource assignment type comprises one of:
a resource assignment based only on downlink control information (DCI),
a resource assignment based on DCI together with at least one of a radio resource control (RRC) signaling or system information, or
a resource assignment based only the RRC signaling or the system information.

### Claim 30 (depends on 27)

The non-transitory computer-readable medium of claim 27, wherein the DCI-related information comprises at least one of: a DCI format, or a DCI structure.
