OFDM transmitter inserting pseudo noise sequence into OFDM symbols after controlling pseudo noise queue

OFDM transmitter inserting pseudo noise sequence into OFDM symbols after controlling pseudo noise queue

  • CN 1,870,483 A
  • Filed: 11/06/2002
  • Published: 11/29/2006
  • Est. Priority Date: 06/17/2002
  • Status: Active Application
First Claim
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1. OFDM transmitter comprises:

  • The forward error correction coding unit is used to the data of encoding and being imported;

    Contrary discrete Fourier transform unit is used for described coded data is transformed to the OFDM code element;

    PN (pseudo noise) sequence is inserted the unit, is used for described OFDM code element and inserts PN (pseudo noise) sequence and preamble/postamble;

    Pulse shaping unit is used for the OFDM code element of described insertion PN (pseudo noise) sequence is carried out shaping pulse filtering;

    The radio frequency up-conversion unit, the OFDM code element up conversion that is used for described shaping pulse filtering is a radiofrequency signal.

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