OPTICAL SIGNAL COMMUNICATION BASE STATION, OPTICAL SIGNAL COMMUNICATION SYSTEM, METHOD FOR TRANSMITTING OPTICAL SIGNAL, METHOD FOR RECEIVING OPTICAL SIGNAL, AND METHOD FOR COMMUNICATING OPTICAL SIGNAL

摘要

PROBLEM TO BE SOLVED: To overcome the problem of a prior art such that an interrupted state is often generated in a conventional mobile communication system because there is a difference in the arrival time of transmitting/receiving signals in accordance with mutually adjacent antenna communication areas and the position of the mobile between zones or repeaters e.g. in communication between the base station and the mobile.;SOLUTION: Each modulation part 11 converts information received from a terminal 6 by a terminal receiving part 10 into high frequency electric signals and a branched electric signal output part 12 branches respective high frequency electric signals to plural optical signal generating/transmitting parts 13 for generating/transmitting optical signals of individual optical wavelengths allocated to respective optical signal receiving repeaters 2a and adjusts timing for outputting the branched electric signals to respective optical signal generating/transmitting parts 13 so that time for transmitting respective high frequency signals photo-electrically converted by respective repeaters 2a from an LCX5 coincides with each other.;COPYRIGHT: (C)2002,JPO