Optical distributed network system using multi input multi output

A system for communicating between a base station transceiver subsystem and radio access units in a wireless communication system in which a plurality of the radio access units connects to one base station transceiver subsystem, and the radio access units and the base station transceiver subsystem constitute a picocell, respectively, the system comprising:

• a data path switch for switching a signal received from a base station controller, to a predetermined picocell within a plurality of picocells;
• a micro cell HD controller and a picocell HD controller for detecting header information of the signal received from the base station controller, and controlling the data path switch to switch to a predetermined micro cell to receive the signal, and the predetermined picocell provided within the predetermined micro cell, using the detected header information;
• a picocell power meter for receiving a signal strength from the mobile terminal provided within a service boundary of the predetermined picocell, and performing a power control;
• a modem for modulating, encoding, and transmitting the signal inputted from the data path switch, to an optical transceiver, and modulating, encoding, and transmitting a signal inputted from the optical transceiver, to the data path switch;
• and
• an optical transceiving unit for receiving an electric signal from the modem, converting the received electric signal into an optical signal, and transmitting the optical signal to the radio access unit, and receiving an optical signal from the radio access unit, converting the received optical signal into an electric signal, and outputting the electric signal to the modem.