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

摘要

Method and apparatus of transmitting PLCP header for sub 1 GHz communication is disclosed. A method of transmitting a physical layer convergence protocol (PLCP) header may comprise generating a short training field (STF) sequence over 1 orthogonal frequency division multiplexing (OFDM) symbol, transforming the STF sequence to repeated waveform patterns in time domain and transmitting the PLCP header comprising the STF sequence, wherein the STF sequence may be a sequence transformed to repeated waveform patterns in time domain by inverse discrete Fourier transform (IDFT).

主权项

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, and wherein 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.