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Method and system for automatic gain control during signal acquisition

  • US 7,702,046 B2
  • Filed: 04/03/2006
  • Issued: 04/20/2010
  • Est. Priority Date: 04/03/2006
  • Status: Expired due to Fees
First Claim
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1. A mobile communications device comprising:

  • a receiver configured to receive a broadcast signal comprising a plurality of Orthogonal Frequency Division Multiplex (OFDM) symbols from a wireless broadcast network, and operate in either an acquisition mode or a tracking mode; and

    automatic gain control circuitry configured to set a gain control value based on a first number of samples of the received broadcast signal when the receiver is operating in the acquisition mode, where the first number of samples is less than a number of samples for a one of the plurality of OFDM symbols, and on a second number of samples of the received broadcast signal when the receiver is operating in the tracking mode.

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