APPARATUS AND METHOD FOR UPLINK POWER CONTROL FOR A WIRELESS TRANSMITTER/RECEIVER UNIT UTILIZING MULTIPLE CARRIERS
First Claim
1. A method of determining uplink power in a wireless transmit receive unit (WTRU), the method comprising:
- receiving a plurality of uplink power parameters indexed to one of a plurality of uplink carriers;
receiving a transmit power control command indexed to the one of the plurality of uplink carriers;
determining a pathloss of the one of the plurality of uplink carriers; and
determining a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss.
1 Assignment
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Accused Products
Abstract
A method and apparatus for determining uplink power in a wireless transmit receive unit (WTRU). The WTRU operates in a carrier aggregated system. The WTRU is configured to receive a plurality of uplink power parameters indexed to one of a plurality of uplink carriers and receive a transmit power control command indexed to the one of the plurality of uplink carriers. The WTRU is configured to determine a pathloss of the one of the plurality of uplink carriers and determine a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss.
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Citations
18 Claims
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1. A method of determining uplink power in a wireless transmit receive unit (WTRU), the method comprising:
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receiving a plurality of uplink power parameters indexed to one of a plurality of uplink carriers; receiving a transmit power control command indexed to the one of the plurality of uplink carriers; determining a pathloss of the one of the plurality of uplink carriers; and determining a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss. - View Dependent Claims (2, 3, 4)
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5. A method of uplink transmission power control in a wireless transmit receive unit (WTRU), the method comprising:
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determining a first uplink channel with a first priority; determining a second uplink channel with a second priority; determining a power level of the uplink channel with the first priority; comparing the power level of the uplink channel with the first priority to a threshold to determine excess power; allocating the excess power to the second uplink channel.
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6. A method of transmit power control in a wireless transmit receive unit (WTRU), the method comprising:
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receiving a transmit power control (TPC) command; applying the TPC command to an uplink (UL) control channel and an UL shared channel; and simultaneously transmitting the UL control channel and UL shared channel with a power based on the applied TPC command.
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7. A method of transmit power control in a wireless transmit receive unit, the method comprising:
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receiving a plurality of transmit power control (TPC) commands; separating the plurality of TPC commands in a plurality of individual TPC commands based on a command format and an identifier; applying at least a first one of the individual TPC commands to an uplink (UL) control channel; applying at least a second one of the individual TPC commands to an UL shared channel; and simultaneously transmitting the UL control channel and the uplink shared channel.
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- 8. The method as in claim 8 further comprising receiving a power headroom report configuration.
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10. A wireless transmit receive unit (WTRU) configured to determine uplink (UL) power, the WTRU comprising:
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a receiver configured to receive a plurality of uplink power parameters indexed to one of a plurality of uplink carriers and a transmit power control command indexed to the one of the plurality of uplink carriers; and a processor configured to determine a pathloss of the one of the plurality of uplink carriers and determine a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss. - View Dependent Claims (11, 12, 13)
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14. A wireless transmit receive unit (WTRU) configured to determine uplink (UL) power, the WTRU comprising a processor, wherein the processor is configured to:
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determine a first uplink channel with a first priority; determine a second uplink channel with a second priority; determine a power level of the uplink channel with the first priority; compare the power level of the uplink channel with the first priority to a threshold to determine excess power; and allocate the excess power to the second uplink channel.
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15. A wireless transmit receive unit (WTRU) configured to determine uplink (UL) power, the WTRU comprising:
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a receiver configured to receive a transmit power control (TPC) command; a processor configured to apply the TPC command to an uplink (UL) control channel and an UL shared channel; and a transmitter configured to transmit the UL control channel and the UL shared channel simultaneously.
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16. A wireless transmit receive unit (WTRU) configured to determine uplink (UL) power, the WTRU comprising:
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a receiver configured to receive a plurality of transmit power control (TPC) commands; a processor configured to separate the plurality of TPC commands in a plurality of individual TPC commands based on a command format and an identifier, apply at least a first one of the individual TPC commands to an uplink (UL) control channel, and apply at least a second one of the individual TPC commands to an UL shared channel; and a transmitter configured to simultaneously transmit the UL control channel and the UL shared channel. - View Dependent Claims (17, 18)
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Specification