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OFDM guard band communication apparatus and method

  • US 7,012,949 B2
  • Filed: 03/12/2001
  • Issued: 03/14/2006
  • Est. Priority Date: 03/15/2000
  • Status: Expired due to Fees
First Claim
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1. A transmitting apparatus comprising:

  • an inverse Fourier transformer that performs an inverse Fourier transform on transmit data converted to parallel form to obtain a first signal;

    a spreader that spreads a second signal;

    a first filter that limits the band of the spread second signal to a guard frequency band adjacent to the band of the first signal; and

    a transmitter that transmits a signal comprising the first and second signals.

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