Methods and systems of power control for uplink transmission
AssigneeHuawei Technologies Co., Ltd.
InventorsZhengwei Gong, Amine Maaref, Kelvin Kar Kin Au, Mohammadhadi Baligh, Weimin Xiao
Life of this patent
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Abstract
A method for power control for uplink transmission is provided. In an embodiment, a method in a user equipment (UE) for reference signal (RS) relationship specific uplink (UL) transmission power control includes transmitting, by the UE, a first UL signal according to a first power control set including at least one of a first target power, a second target power, a DL reference signal (RS) for pathloss estimation, a pathloss compensation factor, and a transmit power command (TPC). The first power control set is determined according to a first RS relationship between one first RS and a first UL signal.
Claims20
A method, comprising:
- obtaining, by an apparatus, configuration of a reference signal (RS) relationship between an RS and a physical uplink control channel (PUCCH), the RS relationship associated with spatial information for the PUCCH, wherein the RS relationship is associated with a plurality of power control parameters comprising a target power, a pathloss, and a transmit power command (TPC);
- determining, by the apparatus, a value of the target power in accordance with the RS relationship obtained by the apparatus;
- determining, by the apparatus, a value of the pathloss in accordance with the RS relationship obtained by the apparatus;
- determining, by the apparatus, a value of the TPC in accordance with the RS relationship obtained by the apparatus;
- determining, by the apparatus, an uplink transmission power based on the value of the target power, the value of the pathloss, and the value of the TPC;
- and
- transmitting, by the apparatus to a base station, the PUCCH using the uplink transmission power.
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 perform operations, the operations comprising:
- obtaining configuration of a reference signal (RS) relationship between an RS and a physical uplink control channel (PUCCH), the RS relationship associated with spatial information for the PUCCH, wherein the RS relationship is associated with a plurality of power control parameters comprising a target power, a pathloss, and a transmit power command (TPC);
- determining a value of the target power in accordance with the RS relationship obtained by the apparatus;
- determining a value of the pathloss in accordance with the RS relationship obtained by the apparatus;
- determining a value of the TPC in accordance with the RS relationship obtained by the apparatus;
- determining an uplink transmission power based on the value of the target power, the value of the pathloss, and the value of the TPC;
- and
- transmitting, to a base station, the PUCCH using the uplink transmission power.
A non-transitory computer-readable medium storing computer instructions, that when executed by one or more processors, cause an apparatus to perform operations, the operations comprising:
- obtaining configuration of a reference signal (RS) relationship between an RS and a physical uplink control channel (PUCCH), the RS relationship associated with spatial information for the PUCCH, wherein the RS relationship is associated with a plurality of power control parameters comprising a target power, a pathloss, and a transmit power command (TPC);
- determining a value of the target power in accordance with the RS relationship obtained by the apparatus;
- determining a value of the pathloss in accordance with the RS relationship obtained by the apparatus;
- determining a value of the TPC in accordance with the RS relationship obtained by the apparatus;
- determining an uplink transmission power based on the value of the target power, the value of the pathloss, and the value of the TPC;
- and
- transmitting, to a base station, the PUCCH using the uplink transmission power.
Dependencies are inferred from the claim text.