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Uplink power control using received reference signal

  • US 8,116,803 B2
  • Filed: 12/01/2008
  • Issued: 02/14/2012
  • Est. Priority Date: 05/14/2001
  • Status: Expired due to Term
First Claim
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1. A method for determining uplink power level, implemented in a base station, comprising:

  • receiving a first communication signal over an uplink channel from a user equipment (UE);

    measuring a channel quality of the uplink channel in response to the received first communication signal;

    providing a quality margin derived from the first communication signal;

    determining that the UE is to send an adaptive modulation and coding report to the base station;

    transmitting an allocation of an uplink channel and the quality margin over a downlink control channel to the UE in response to the determining that the UE is to send an adaptive modulation and coding report; and

    receiving a second communication from the UE in at least one time slot in the allocated uplink channel in response to the allocation of the uplink channel and the quality margin;

    wherein the second communication includes an adaptive modulation and coding report and a transmission power level derived from the quality margin.

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