Patent ID: 7912460
Filing Date: 2011-03-22
Classification: H04L,H04W

Abstract:
1. A communication system comprising: a plurality of terminal devices; a gateway device for connecting the plurality of terminal devices to a network; a first server for receiving a service request from one of the plurality of terminal devices; a second server for providing service to the one of the plurality of terminal devices; and a resource control device for providing policy information to be applied to the service provided from the second server: wherein the first server is configured to manage service control information for associating the service with the policy information, obtain a flow information identifier and a subscriber identifier from a service activation request message received from the one of the plurality of terminal devices, transmit a policy request message including the obtained flow information identifier and the obtained subscriber identifier to the resource control device based on an instruction from the second server, and transmit identification information of the resource control device to the gateway device based on a response message received from the resource control device; wherein the resource control device is configured to manage resource control information for associating the flow information identifier with the policy information, obtain the flow information identifier and the subscriber identifier from the policy request message transmitted from the first server, retrieve policy information based on the obtained flow information identifier and the obtained subscriber information, the policy information including QoS information to be applied to the service, and transmit the retrieved policy information to the gateway device; wherein the gateway device is configured to receive the identification information of the resource control device from the first server, receive the policy information from the resource control device corresponding to the received identification information, and set the received policy information with respect to the service; and wherein the second server is configured to provide the service which has the policy information set thereto, to the one of the plurality of terminal devices.