METHOD FOR GENERATING PREAMBLE SYMBOL METHOD FOR RECEIVING PREAMBLE SYMBOL METHOD FOR GENERATING FREQUENCY DOMAIN SYMBOL AND APPARATUSES

摘要

The present invention provides a method for generating a preamble symbol, a method for receiving and a related method for generating a frequency domain symbol, and a related device, the method comprising: generating a prefix based on a partial time domain main body signal cut from a time domain main body signal; Generating a hyper prefix based on all or part of the partial time domain main body signal; And generating a time domain symbol based on at least one of the cyclic prefix, the time domain main body signal, and the hyper prefix, wherein the preamble symbol includes at least one time domain symbol. . Coherent detection can be realized when all or part of the time domain main body signal is prefixed, and it solves the problem of deterioration of noncoherent detection performance and failure of differential decoding under complex frequency selective fading channel. A hyper prefix is generated based on all or part of the truncated time domain main body signal so that the generated preamble has good fractional frequency offset estimation performance and timing synchronization performance.