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Method and apparatus for generating STF signal using binary sequence in wireless LAN system

  • US 10,320,590 B2
  • Filed: 08/05/2016
  • Issued: 06/11/2019
  • Est. Priority Date: 08/06/2015
  • Status: Active Grant
First Claim
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1. A method in a wireless local area network (LAN) system, the method comprising:

  • selecting, by a transmitting apparatus, a short training field (STF) sequence from a plurality of predetermined sequences, wherein the selected STF sequence includes a predetermined M sequence;

    generating, by the transmitting apparatus, an STF signal used for a transmission frequency band based on the selected STF sequence; and

    transmitting, by the transmitting apparatus, a physical protocol data unit (PPDU) including the generated STF signal to a receiving apparatus,wherein the selected STF sequence is defined as shown below;

    {M, −

    1, M, −

    1, −

    M, −

    1, M, 0, −

    M, 1, M, 1, −

    M, 1, −

    M}*(1+j)/sqrt(2), wherein sqrt( ) denotes a square root, andwherein the predetermined M sequence is a sequence having a length of 15 bits and is defined as shown below;

    M={−

    1, −

    1, −

    1, 1, 1, 1, −

    1, 1, 1, 1, −

    1, 1, 1, −

    1, 1}.

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