Determining power headroom in a wireless network
First Claim
1. A wireless transmit/receive unit (WTRU), the WTRU comprising:
- a processor configured to;
determine that the WTRU is configured for simultaneous PUSCH/PUCCH transmission;
calculate a physical uplink control channel (PUCCH) transmit power associated with a reference downlink control information (DCI) format in the absence of a PUCCH transmission;
determine a power headroom using a physical uplink shared channel (PUSCH) transmit power and the PUCCH transmit power; and
send a power headroom report that includes the power headroom.
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Abstract
Methods and apparatus for power control are described. Methods are included for calculating and signaling power control related data to support multiple component carriers (CCs) for which transmission may be accomplished with one or more WTRU power amplifiers (PAs). Methods are included for calculating and signaling one or more of CC-specific power control related data and PA-specific power control related data. The power control related data may include one or more of maximum power, power headroom, and transmit power. Methods for selecting which power control related data to exchange are included. Methods are included for calculating and signaling power control related data for physical UL shared channel (PUSCH), physical UL control channel (PUCCH), and simultaneous PUSCH and PUCCH transmission.
87 Citations
28 Claims
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1. A wireless transmit/receive unit (WTRU), the WTRU comprising:
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a processor configured to; determine that the WTRU is configured for simultaneous PUSCH/PUCCH transmission; calculate a physical uplink control channel (PUCCH) transmit power associated with a reference downlink control information (DCI) format in the absence of a PUCCH transmission; determine a power headroom using a physical uplink shared channel (PUSCH) transmit power and the PUCCH transmit power; and send a power headroom report that includes the power headroom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for reporting power headroom for a wireless transmit/receive unit (WTRU), the method comprising:
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determining, via the WTRU, that the WTRU is configured for simultaneous PUSCH/PUCCH transmission; calculating a physical uplink control channel (PUCCH) transmit power associated with a reference downlink control information (DCI) format in the absence of a PUCCH transmission; determining a power headroom using a physical uplink shared channel (PUSCH) transmit power and the PUCCH transmit power; and sending a power headroom report that includes the power headroom. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification