Communication system and method for determining user fee on the basis of quality of service

摘要

A communication system is composed of a quality determining unit (3, 5, 23, 25), a gateway (3, 23), and a user-fee determining unit (4, 24). The quality determining unit (3, 5, 23, 25) determines a QoS (quality of service). The gateway (3, 23) transfers an IP datagram at said QoS. The user-fee determining unit (4, 24) determines a user fee for said IP datagram based on said QoS.