Patent ID: 7693054

Claim:
A method for implementing resources reservation in an access configuration mode in a next generation network (NGN), comprising: sending, by a network access additional function entity (NAAF) when a user terminal accesses the network, a resources request message to a resources mediation policy decision function entity (PDF) according to a subscriber service level agreement in a subscriber configuration file, wherein the resources request message carries resources requirement parameters information requested by a user traffic; checking, by the resources mediation PDF after receiving the resources request message, whether the corresponding request is consistent with related network operation policy rules, and checking whether there are available resources meeting the resources requirement in the related transport networks, and making an admission decision for the corresponding resources request according to a checking result; if the corresponding resources request is admitted, sending, by the resources mediation PDF, an admission installation command to a border gateway function entity (BGF), and setting corresponding admission decision parameters information in the BGF; and performing, by the BGF, forwarding operations on the user traffic entering the network according to the admission decision parameters information.