APPARATUS AND METHOD FOR DETECTING A POWER RATIO BETWEEN A TRAFFIC CHANNEL AND A PILOT CHANNEL IN A MOBILE COMMUNICATION SYSTEM

摘要

An apparatus and method for detecting a power ratio between a traffic chann el and a pilot channel in a mobile communication system. The apparatus is operable to generate a second signal by performing channel estimation using a second channel signal, and generate a first signal by channel-compensating the first channe l signal using the second signal. The apparatus is further operable to generate absolute values of symbols constituting the first signal, select absolute values in a predetermined length after sorting the absolute values in magnitude order, calculate an average value of the selected absolute values, calculate a square of an absolute value of the second signal, and generate the power ratio using a ratio of the average value to the squar e of the absolute value of the second signal.