Waveforms based on DFT-s OFDM and OFDM zero-tail and unique words

摘要

A method and system for operation in a wireless network is provided, the method comprising receiving modulated data symbols and zeros in the frequency domain and resource allocation of the modulated data symbols and zeros in the frequency domain. Mapping to the subcarriers in an interleaved manner. The method includes generating a time domain data signal based on the mapped subcarriers, and inverting the sign of a predetermined number of time domain samples at the tail portion of the data signal and repeating to generate a time domain cancellation signal. And generating. The method combines the time domain data signal and the time domain cancellation signal to generate an accurate zero tail data signal such that the accurate zero tail data signal has a zero tail length equal to a predetermined number of time domain samples. And transmitting an accurate zero tail data signal.