WIRELESS MATCHING APPARATUS FOR B-WLL SYSTEM AND METHOD THEREFOR

摘要

PURPOSE: A wireless matching apparatus for a B-WLL(Broadband-Wireless Local Loop) system and a method therefor are provided to effectively perform an AGC(Automatic Gain Control) and an APC(Automatic Power Control) by estimating the attenuation of a signal channel using a reference frequency received through a synchronous channel. CONSTITUTION: An RF(Radio Frequency) transmitting and receiving block(221) receives signals of a synchronous channel and an upward signal channel from a radio port through an antenna, transmits the signal of the upward signal channel to the radio port through the antenna, and performs the AGC of the received signal and the APC of a transmitting signal on the basis of an AGC reference value and an APC reference value. A channel dividing unit(223) divides a receiving signal provided from the RF transmitting and receiving block(221) into the synchronous channel and the signal channel. A frequency demodulating block(225) demodulates a reference frequency of the divided synchronous channel and detects a level of the synchronous channel. An oscillator(227) generates a reference clock necessary for a subscriber access device using the demodulated reference frequency. An AGC/APC block(229) generates the AGC reference value and the APC reference value on the basis of the level detecting value and provides the generated AGC reference value and APC reference value to the RF transmitting and receiving block(221).