Processing method for resource request in NGN

A method for processing a resource request in a next generation network, comprising:

• after receiving a service request sent by a user, a service control layer in the next generation network sending a corresponding resource request to a resource and admission control layer;
• and
• if a bandwidth applied in the resource request cannot be satisfied, the resource and admission control layer including available bandwidth information into a corresponding resource request refusing message when refusing the request, and transmitting the resource request refusing message to the service control layer;
• wherein,
• if the resource request cannot be satisfied only with remaining subscription bandwidth of the user, the available bandwidth information comprises:
• a bandwidth value of the remaining subscription bandwidth;
• if the resource request cannot be satisfied only with distributable bandwidth of a transmission layer, the available bandwidth information comprises:
• a bandwidth value of the distributable bandwidth of the transmission layer;
• if the resource request cannot be satisfied with both remaining subscription bandwidth of the user and distributable bandwidth of the transmission layer, the available bandwidth information comprises:
• a bandwidth value of the remaining subscription bandwidth and a bandwidth value of the distributable bandwidth of the transmission layer, or the minimum bandwidth value among the bandwidth value of the remaining subscription bandwidth and the bandwidth value of the distributable bandwidth of the transmission layer.