Extension of power headroom reporting and trigger conditions

  • US 8,570,957 B2
  • Filed: 03/26/2009
  • Issued: 10/29/2013
  • Est. Priority Date: 03/26/2008
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a processor configured to determine a power headroom report; and

    a transmitter configured to transmit the headroom report,wherein the processor is configured to determine the power headroom report with both positive and negative values of power headroom, as applicable, in which negative values indicate the missing power in dB to fulfill transmission requirements, andwherein the processor is configured to determine the power headroom by subtracting the nominal maximum transmission power and the power that the apparatus would use if it did not apply maximum power limitations, wherein the result of said subtracting is not limited to zero and positive values.

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