ANALOG DISTRIBUTED ANTENNA SYSTEM AND ITS OPERATING METHOD

摘要

Some embodiments of the present disclosure relate to an analog distributed antenna system, and its operating method, provided with an orthogonal frequency division multiplexing (OFDM) high-speed modem for use in transceiving control signals between a main unit and remote units in order to effectively control the remote units connected to the main unit.

主权项

1. A main unit of an analog distributed antenna system, the main unit comprising:
an interface unit configured to receive a radio signal input from a base station; a control unit configured to generate a control signal for controlling at least one remote unit connected to the main unit; a high-speed modem configured to RF-modulate the control signal for converting the control signal into an analog RF signal as an output; a signal coupler configured to generate a combined signal from the radio signal and the analog RF signal; and an optical transceiver configured to convert the combined signal to an optical signal and transmit a converted optical signal to the remote unit.