Microcellular mobile communication system

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide a microcelluar mobile communication system that can perform various functions such as a centralized management of resources, a capacity increase, a Base Station Transceiver System (BTS) miniaturization, a synchronization between micro base stations, a dynamic resource management, a softer handover between cells, a grouping and ungrouping of base stations in accordance with a traffic distribution.
To achieve the above object, the present invention comprises a GPS receiver for generating a timing information and a reference clock signal to maintain synchronization of a system and a network; a micro base station controller for interfacing with a base station controller, performing a spreading modulation and demodulation, combining signals through a switching operation for dynamic channel allocation between cells and softer handover process, and up-converting the combined signal into at intermediate frequency so that said micro base station controller outputs the up-converted signal with a cable frequency if said micro base station controller transmits a signal to a plurality of micro base stations, and conversely down-converting a received cable frequency into the intermediate frequency so that said micro base station controller transmits a packetized message to said base station controller if said micro base station controller receives a signal from said plurality of micro base stations; a transferring means connected between said GPS receiver and said micro base station controller, for transferring the cable frequency signal in respond to a control signal; and said plurality of micro base stations for transmitting and receiving the cable frequency signal to and from said micro base station controller, respectively, through said transferring means, and for transmitting and receiving a radio frequency signal to and from a mobile station, respectively.
The present invention is divided into a digital hardware and an RF transceiver, the digital hardware and the RF transceiver are connected through optical fibers or hybrid fiber coaxial networks based on the Subcarrier Multiplexing (SCM) technique