METHOD AND APPARATUS FOR USER EQUIPMENT SYNCHRONIZATION OF MULTIPLE ANTENNA IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM

摘要

A method and an apparatus for acquiring synchronization of a multi-antenna in an orthogonal frequency division multiple access system are provided to obtain initial synchronization in a terminal having the multi-antenna by searching symbol timing from signals inputted from a terminal to the multi-antenna. An apparatus for acquiring synchronization of a multi-antenna in an orthogonal frequency division multiple access system comprises a signal combiner, an initial symbol timing estimator, a frame detector, a frequency offset estimator, and a timing synchronizer. The signal combiner combines each signal inputted to the multi-antenna. The initial symbol timing estimator estimates initial symbol timing and a fractional multiplicative frequency offset using the combined signal. The frame detector detects a frame starting point based on the estimated value. The frequency offset estimator estimates a frequency offset based on the frame starting point. The timing synchronizer searches symbol timing by compensating the frequency offset.