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Digital frequency hopping in multi-band OFDM

  • US 8,320,474 B2
  • Filed: 12/06/2006
  • Issued: 11/27/2012
  • Est. Priority Date: 12/06/2006
  • Status: Expired due to Fees
First Claim
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1. An apparatus configured for generating a frequency-hopped OFDM signal, comprising:

  • a digital Fourier transform circuit comprising a plurality of input frequency bins and configured to modulate complex data symbols onto a plurality of OFDM subcarriers,a variable bandpass filter configured to select sets of the plurality of input frequency bins for frequency hopping the OFDM subcarriers across a plurality of subbands, wherein each set of input frequency bins corresponds to one of the plurality of subbands, anda frequency-hopping controller configured to control the variable bandpass filter for selecting the sets with respect to at least one predetermined frequency-hopping pattern.

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