DISTRIBUTED RADIO COMMUNICATION BASE STATION SYSTEM, AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To prevent an increase of bands in a PON section necessary for user data transfer if the number of base stations requesting JT increases.SOLUTION: On the occurrence of communication between base stations with the necessity of transferring user data in a certain mobile station X from one base station A to a plurality of base stations B and C, the user data in the mobile station X is transmitted by a multicast function from an OLT 140, to thereby reduce a required band.