Patent ID: 8483231

Claim:
A communication system, comprising: a first mobile station; a first node which accommodates the first mobile station; a first QoS server which holds service conditions of the first mobile station; a second mobile station which is a communication counterpart of the first mobile station; and a second QoS server which holds service conditions of the second mobile station, wherein the first node includes a first transfer unit which receives a QoS request for requesting to set a QoS channel from the first mobile station and transfers the QoS request to the first QoS server; and a management unit which instructs the second QoS server to transfer the QoS request if the management unit judges based on the QoS request that the first node accommodates the second mobile station, the first transfer unit transfers the QoS request to the second QoS server based on the instruction from the management unit, and the second QoS server includes a QoS setting message output unit which outputs a QoS setting message to instruct setting of a QoS channel to the second mobile station based on the QoS request.