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Method and apparatus of transmitting PLCP header for sub 1 GHz communication

  • US 8,948,284 B2
  • Filed: 11/06/2012
  • Issued: 02/03/2015
  • Est. Priority Date: 11/07/2011
  • Status: Expired due to Fees
First Claim
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1. A method of transmitting training fields for wireless local area network, the method comprising:

  • determining a short training field (STF) sequence and a number of at least one first orthogonal frequency division multiplexing (OFDM) symbol for the STF sequence based on a size of a channel bandwidth in a sub 1 GHz frequency band;

    determining a long training field (LTF) sequence and a number of at least one second OFDM symbol for the LTF sequence based on the size of the channel bandwidth in the sub 1 GHz frequency band;

    transmitting the STF sequence on the at least one first OFDM symbol; and

    transmitting the LTF sequence on the at least one second OFDM symbol,wherein the size of the channel bandwidth is 1 MHz, 2 MHz, 4 MHz, 8 MHz, 16 MHz or 8+8 MHz in the sub 1 GHz frequency band, andwherein the at least one first OFDM symbol and the at least one second OFDM symbol are 1/10 down-clocked OFDM symbols having a duration of 40 micro-second.

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