Uplink power control for advanced wireless communication systems
AssigneeSamsung Electronics Co., Ltd.
InventorsMd. Saifur Rahman, Eko Onggosanusi
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Abstract
A method of a user equipment (UE) for an uplink power control is provided. The method comprises transmitting, to a base station (BS), UE capability information including a full power transmission capability of the UE, receiving, from the BS, downlink control information (DCI) including a transmit precoding matrix indicator (TPMI), determining a power level for each antenna port at the UE based on the full power transmission capability of the UE and the TPMI, and transmitting, to the BS, UL data via physical uplink shared channel (PUSCH) based on the determined power level for each antenna port at the UE and the TPMI wherein the TPMI indicates a precoding matrix and a number of layers used to transmit the UL data via the PUSCH.
Claims20
A user equipment (UE) for an uplink (UL) power control, the UE comprising:
- a transceiver;
- and
- a controller operably coupled with the transceiver and configured to:
- receive, from a base station (BS), a message including a configuration of a physical uplink shared channel (PUSCH),
- receive, from the BS, downlink control information (DCI) including a transmit precoding matrix indicator (TPMI),
- determine a power level for a plurality of antenna ports at the UE based on a power scaling factor, wherein the power scaling factor is determined based on the configuration and the TPMI, and
- transmit, to the BS, UL data via the PUSCH based on the determined power level for the plurality of antenna ports at the UE,
- wherein the TPMI indicates a precoding matrix and a number of layers used to transmit the UL data via the PUSCH, and
- wherein the power scaling factor is one of two values based on the configuration, the first of the two values is one and the second of the two values is associated with a number of antenna ports with non-zero PUSCH transmission power.
A base station (BS) for an uplink (UL) power control, the BS comprising:
- a transceiver;
- and
- a controller operably coupled with the transceiver and configured to:
- transmit, to a user equipment (UE), a message including a configuration of a physical uplink shared channel (PUSCH),
- transmit, to the UE, downlink control information (DCI) including a transmit precoding matrix indicator (TPMI), and
- receive, from the UE, UL data via the PUSCH based on a power level for a plurality of antenna ports at the UE,
- wherein the TPMI indicates a precoding matrix and a number of layers used to transmit the UL data via the PUSCH,
- wherein the power level for the plurality of antenna ports at the UE is according to a power scaling factor,
- wherein the power scaling factor is indicated based on the configuration and the TPMI, and
- wherein the power scaling factor is one of two values based on the configuration, the first of the two values is one and the second of the two values is associated with a number of antenna ports with non-zero PUSCH transmission power.
A method performed of a user equipment (UE) for an uplink (UL) power control, the method comprising:
- receiving, from a base station (BS), a message including a configuration of a physical uplink shared channel (PUSCH);
- receive, from the BS, downlink control information (DCI) including a transmit precoding matrix indicator (TPMI);
- determining a power level for a plurality of antenna ports at the UE based on a power scaling factor, wherein the power scaling factor is determined based on the configuration and the TPMI;
- and
- transmitting, to the BS, UL data via the PUSCH based on the determined power level for the plurality of antenna ports at the UE,
- wherein the TPMI indicates a precoding matrix and a number of layers used to transmit the UL data via the PUSCH, and
- wherein the power scaling factor is one of two values based on the configuration, the first of the two values is one and the second of the two values is associated with a number of antenna ports with non-zero PUSCH transmission power.
A method performed of a base station (BS) for an uplink (UL) power control, the method comprising:
- transmitting, to a user equipment (UE), a message including a configuration of a physical uplink shared channel (PUSCH);
- transmitting, to the UE, downlink control information (DCI) including a transmit precoding matrix indicator (TPMI);
- and
- receiving, from the UE, UL data via the PUSCH based on a power level for a plurality of antenna ports at the UE,
- wherein the TPMI indicates a precoding matrix and a number of layers used to transmit the UL data via the PUSCH,
- wherein the power level for the plurality of antenna ports at the UE is according to a power scaling factor,
- wherein the power scaling factor is indicated based on the configuration and the TPMI, and
- wherein the power scaling factor is one of two values based on the configuration, the first of the two values is one and the second of the two values is associated with a number of antenna ports with non-zero PUSCH transmission power.
Dependencies are inferred from the claim text.