OPTICAL COMMUNICATION BASE STATION, OPTICAL SIGNAL CONVERTING APPARATUS AND OPTICAL SIGNAL CONVERTING METHOD

摘要

An optical communication base station (BS1) receives, from a plurality of subsidiary communication apparatuses (O11-O12), upstream optical signals having upstream bit rates specific to the respective subsidiary communication apparatuses (O11-O12), and transmits, to the subsidiary communication apparatuses (O11-O12), downstream optical signals having downstream bit rates specific to the respective subsidiary communication apparatuses (O11-O12). The optical communication base station (BS1) comprises a first optical signal converting unit (11) that changes the bit rates of the upstream optical signals to convert the upstream signals to inter-station optical signals of fixed bit rates to be received by receiving stations at the other end of communication (BS2,BS3), and a second optical signal converting unit (12) that changes, in accordance with the destinations of the subsidiary communication apparatuses (O11-O12), the bit rates of inter-station optical signals received from the transmitting stations at the other end of communication (BS2,BS3) to convert these inter-station optical signals to downstream optical signals.