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Method and Apparatus for Improving Power Amplifier Efficiency in Wireless Communication Systems Having High Peak to Average Power Ratios

  • US 20120329411A1
  • Filed: 09/05/2012
  • Published: 12/27/2012
  • Est. Priority Date: 02/20/2004
  • Status: Active Grant
First Claim
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1. A power management system for a transmitter of a wireless device, the transmitter comprising a power amplifier for generating an amplified transmission signal, and the power management system comprising:

  • an environmental sensor unit for providing at least one environmental information signal representing an operating environment of the wireless device; and

    a power supply level adjustment generator comprising at least one mapper configured to receive the at least one environmental information signal and a data parameter indicator of a baseband outgoing data stream to be transmitted by the wireless device to generate a power supply level adjustment signal for combining with an average desired transmit power signal representing an average transmit power of the amplified transmission signal to generate a variable power supply signal for the power amplifier.

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