wireless communication method and apparatus for time-varying cyclic delay diversity in the system

摘要

The present invention provides a time-varying cyclic delay diversity in a wireless communication system (cyclic delay diversity: CDD) method and apparatus relates to, when present in the antenna-specific signal transfer path, the method comprising the steps of: checking whether the current time corresponds to the intra-frame preamble zone, when the current time is to correspond to the intra-frame preamble zone, the signal path is the reference point of the antenna portion delayed in time, and in the future according to the FFT (Fast Fourier Transform) of the sampling point selection error at the receiver, including the step of delaying back in time is equal to or higher than the reference point signal of the other antenna path portion, wherein the wireless communication system ISI (intersymbol interference) reduces the amount of the time-varying cyclic delay may improve the performance, such as capacity and coverage (coverage) of the system using the diversity scheme.