APPARATUS AND METHOD FOR DETECTING DATA RATE OF WIRELESS COMMUNICATION SYSTEM

摘要

PURPOSE: An apparatus and method for detecting a data rate of a wireless communication system is provided to minimize a decoding time and power consumption and improve the efficiency of a system by detecting a data rate before a decoding procedure and performing a necessary decoding using detected information. CONSTITUTION: A receiver(1401) despreads a receiving signal and demodulates the receiving signal as symbol data having a symbol series. The first correlater(1401) correlates symbols for an odd time and symbols for an even time in the symbol series, accumulates the correlated symbol during a frame interval, averages the accumulated value, and obtains the first mean value. The second correlater(1402) correlates symbols for 4n+2 time and symbols for 4n+3 time, accumulates the correlated value, averages the accumulated value, and obtains the second mean value. A data rate detector(1404) compares the first mean value and the second mean value with a certain reference value, judges repetition characteristic of the receiving signal, and determines a data rate of the receiving signal using the repetition characteristic and an initial data rate.