Patent ID: 8320917

Claim:
A communication method in a communication system, wherein the communication system comprises: a mobile terminal; a communication server that distributes data to the mobile terminal; and a plurality of base stations that are capable of relaying the data, and one of the base stations among the plurality of base stations is responsible for relaying the data, and the communication method comprises: detecting a type of service to which the data being relayed by a first base station responsible for relaying the data among the plurality of base stations belongs; restriction-instruction-information-transmitting including transmitting, to the communication server, restriction instruction information to restrict a data transmission rate when the type of service detected by the detecting is a type of service of ability to be reproduced even due to reduction of a data speed, and omitting the transmitting of the restriction instruction information when the type of service is a type of service of inability to be reproduced due to reduction of a data speed; and hand-overing, by the first base station, causing a second base station different from the first base station to take over the responsibility of relaying, after the transmitting of the restriction instruction information.