Abstract:
PURPOSE: A delay compensation distribution type base station system is provided to acquire equal frame timing regardless of the location of a wireless apparatus by measuring route delay time respectively generated in an optical line. CONSTITUTION: Two or more uplink delay measurement units(311-1~311N) acquire uplink delay measurement values. A control unit(314) inputs a control signal for controlling uplink delay to each uplink delay compensation unit(322-1~322-N). Each uplink delay compensation unit compensates the delay of an uplink signal. Each uplink delay compensation unit outputs the compensated signal to a control apparatus.
Abstract:
A multiple antenna wireless channel measuring system and a method thereof for measuring a bidirectional radio channel using the time control signal are provided to measure radio channel as wireless measurement mode selected from TDD(Time Division Duplex), FDD(Frequency Division Duplex), and a simplex mode. A controller selects a radio measurement mode, generates measurement signal and receives the measured parameters. A base-band processing unit(200) sets up the transmit receive frequency bandwidth based on the radio determination mode and receives parameters. A synchronization unit(210) generates transmission/reception signal and supplies the transmission/reception signal to the base-band processing unit. An RF(Radio Frequency) processing unit switches an antenna according to the timing control signal.