Patent ID: 8379519

Claim:
A method for implementing resource and admission control of a next generation network, comprising: in nomadism scenario, after a subscriber accesses a next generation network in a visited network and initiates a service request to Application Function (AF) of the subscriber's home network, A: after receiving a resource request transmitted by the AF corresponding to the service request, Service-based Policy Decision Function (SPDF) of the home network transmitting the resource request to Access-Resource and Admission Control Function (A-RACF) of the visited network through SPDF of the visited network; B: the A-RACF of the visited network making a resource policy decision on the resource request, and transmitting in push mode a decision result to Resource Control Enforcement Function (RCEF) of the visited network for policy installation; C: the A-RACF of the visited network transmitting a resource request response to the SPDF of the home network through the SPDF of the visited network; wherein in the above steps, after receiving the resource request, the SPDF of the home network and/or the SPDF of the visited network perform authorization examining for the resource request before the resource request is transmitted to the A-RACF of the visited network.