Abstract: A feedback method and a processing system for policy installation failures are applied in communication technical field, which is favorable for an Access Resource Admission Control Function (A-RACF) to accurately grasp the detailed information of policy installation failure enforced by the Resource Control Enforcement Function (RCEF), therefore the efficiency of downwardly sending the policies for installation next time is improved. The method includes: when the installation of the policies downwardly sent from the A-RACF to the RCEF is failed, the RCEF generates a feedback message to be sent to the A-RACF, wherein the feedback message includes error reasons of the policy installation failures.

Abstract: A method and a system are provided for reporting policy installation failures in the field of communications. The method and system enable the policy decision functional entity (PD-FE) to accurately obtain detailed information of policy installation failures of the policy enforcement functional entity (PE-FE), thus enhancing the efficiency of sending the next policy for installation. The method includes: when the installation of a policy sent from the PD-FE to the PE-FE is failed, the PE-FE generates a feedback message to be sent to the PD-FE, and the feedback message includes the error reason of the policy failed in installation.

Abstract: The present invention discloses a system and a method for resource access control. In the system, a resource access control function entity comprises path selection function means, which is configured to set a QoS policy and select a path meeting the QoS requirement for a service flow based on set QoS policy. In the present invention, by adding the path selection function means and selecting the path using the path selection function means, the x-RACF has the QoS policy based function of path selection and resource control for the service flow accessing to an access network, and thus the QoS guarantee capability of the NGN service is strengthened.

Abstract: The present invention discloses a method for selecting policy decision functional entity in the Resource and Admission Control System. The method includes that: for resource and admission control in the PULL mode, after the Transport Resource Control Function Entity (TRC-FE) receives a resource request message from the Customer Premises Equipment (CPE) or after the Policy Enforcement Function Entity (PE-FE) receives a transport layer signaling sent by CPE, if the TRC-FE or PE-FE is interacting with more than one Policy Decision Functional Entities (PD-FEs), the TRC-FE or the PE-FE may select a PD-FE according to the stored identification information of PD-FE or statically configured PD-FE, and send a resource decision request message to the selected PD-FE.

Abstract: A method for implementing resource and admission control in PUSH mode in nomadism scenario of NGN comprises the following steps: after a subscriber accesses NGN in a visited network, initiates a service request to AF of a home network thereof, and receives a resource request transmitted by AF, SPDF of the home network transmitting the resource request to A-RACF of the visited network through SPDF of the visited network; A-RACF of the visited network making a resource policy decision on the resource request, and transmitting the decision result to RCEF of the visited network for policy installation; A-RACF of the visited network transmitting a resource request response to SPDF of the home network through SPDF of the visited network; in these steps, after receiving the resource request, SPDF of the home network and/or SPDF of the visited network perform authorization examining for the resource request.

Abstract: A resource and admission control method and a resource and admission control sub-system are provided in the present invention.