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OFDM transmission/reception apparatus

  • US 7,106,689 B1
  • Filed: 02/24/2000
  • Issued: 09/12/2006
  • Est. Priority Date: 03/02/1999
  • Status: Expired due to Term
First Claim
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1. An OFDM transmission apparatus providing a transmission period in which communication control information and user data are transmitted at the same time using a plurality of subcarriers forming an OFDM signal, said transmission period being different from a transmission period of a known signal that is used for channel estimation, said OFDM transmission apparatus comprising:

  • an OFDM signal former that allocates;

    (i) the same communication control information to each of specific subcarriers of the OFDM signal, in duplication, and (ii) the user data to subcarriers of the OFDM signal other than said specific subcarriers; and

    a transmitter that transmits the OFDM signal formed in the OFDM signal former.

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