Method of signal generation and signal generating device

  • US 11,063,805 B2
  • Filed: 09/25/2019
  • Issued: 07/13/2021
  • Est. Priority Date: 02/18/2011
  • Status: Active Grant
First Claim
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1. A signal generation method comprising:

  • phase-changing baseband signals with respective phase changing patterns to generate respective phase-changed signals, each of the phase changing patterns being different from each other; and

    inverse-fast-Fourier-transforming the phase-changed signals to respective orthogonal frequency division multiplexing (OFDM) transmission signals, whereineach phase changing pattern has N candidates for an amount of change in a phase, N being an integer greater than two, andeach candidate is periodically selected from the N candidates based on subcarriers of the respective OFDM transmission signals, a phase of a corresponding baseband signal among the baseband signals being changed by the each candidate.

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