Communication units, communication system and methods for modulation and demodulation.

摘要

A method of demodulation, the method comprising the steps of receiving a radio frequency signal, converting the received radio frequency signal to a base-band signal, performing symbol timing recovery on the base-band signal, and demodulating the base-band signal. The base-band signal comprises alternating symbols spaced at an alternating first interval length and a second interval length, where the first interval length and second interval length are dissimilar. The base-band signal is then demodulated. Communication units and a method of modulation are also described.