OFDM transmission method and device in wireless LAN system

摘要

An apparatus and method for orthogonal frequency division multiplexing (OFDM) transmission in a wireless local area network (WLAN) system is disclosed, in which the apparatus for OFDM transmission in the WLAN system includes a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal, an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal, a modulator to modulate the interleaved signal and output modulated symbols, and a phase rotation unit to phase shift the modulated symbols.

主权项

1. An apparatus for an orthogonal frequency division multiplexing (OFDM) transmission in a wireless local area network (WLAN) system, the apparatus comprising:
a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal; an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal; a modulator to modulate the interleaved signal and output modulated symbols; and a phase rotation unit to shift phase of the modulated symbols, wherein the phase rotation unit maintains phase of symbols obtained by modulating the encoded signal among the modulated symbols, and shifts phase of symbols obtained by modulating the repeated signal among the modulated symbols.