Method and circuit to transmit received signals from an antenna to a base station of a radio system

摘要

The transmission method involves the use of an antenna arrangement to transmit reception signals to a base station of a mobile radio system. The antenna arrangement includes several antennae (A1-An). Optical signals are generated from a device connected to the antenna. The signals are transmitted to the base station via an optical waveguide (L). An optical carrier is generated in the base station (BS) and transmitted to the antenna. The carrier is modulated with the reception signal using an electro-optical modulator and transmitted back to the base station via an optical waveguide. The modulator is a reflection modulator.