| 摘要 |
PURPOSE: A transmission network extending apparatus of a communication system is provided to make a local station compact by using a module having a transmission network interfacing function and allow terminals to transmit data to each other by connecting every type of transmission network to a base station. CONSTITUTION: An RF processor(120) amplifies and down-converts a signal received by an antenna(110) to generate an RF signal, and up-converts and amplifies the RF signal to radiate it through the antenna(110). The first signal transmitting/receiving unit(130) converts the RF signal into compressed digital data and transmits it to a host station(200), receives the digital data, restores it to the RF signal and transmits it to the RF processor(120). The second signal transmitting/receiving unit(210) receives the compressed digital data, restores it to the RF signal, converts the RF signal into compressed digital data, and transmits it to a local station(100). A digital processor(220) processes the restored RF signal to packet type data, transmits it to an exchange(230), converts the packet type data into an RF signal, and transmits it to the second signal transmitting/receiving unit(210).
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