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Combined open loop/closed loop method for controlling uplink power of a mobile station

DC
  • US 8,509,836 B2
  • Filed: 03/07/2008
  • Issued: 08/13/2013
  • Est. Priority Date: 03/07/2007
  • Status: Active Grant
First Claim
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1. A method for controlling transmit power of a wireless transmit receive unit (WTRU) comprising:

  • determining an open loop uplink (UL) power control (PC) component based on pathloss measurement, wherein the open loop PC component comprises a cell-specific parameter and a WTRU-specific parameter, and wherein the cell-specific and WTRU-specific parameters are provided from higher layers;

    determining a closed loop PC component including a correction factor, wherein the correction factor is based on a PC correction command signaled in a UL grant associated with a hybrid automatic repeat request (HARQ) process;

    combining the open loop PC component and the closed loop PC component with a delta factor related to an offset value to determine a transmit power, wherein the offset value is related to a modulation and coding scheme (MCS); and

    applying the transmit power in accordance with a timing of the HARQ process.

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