Patent ID: 8565110
Filing Date: 2013-10-22
Classification: H03G,H04L

Abstract:
1. An apparatus for receiving data in a communication system, the apparatus comprising: a detection unit configured to detect a data packet based on a ratio of power values of the data packet calculated with a preamble of the data packet in a received signal; a control unit configured to perform an automatic gain control (AGC) on the detected data packet with a gain compensation value of the detected data packet; a compensation unit configured to remove a DC offset from the received signal, the DC offset being in an interval in the received signal where no data packet exists; and a demodulator configured to demodulate the AGCed data packet, wherein the preamble includes periodically repeated sequences, and the detection unit identifies an end of the data packet by comparing a first preset threshold value with a first power value of the data packet calculated with the sequence of a period of the preamble.