method and apparatus for maintaining the data of the policy and billing rules function

摘要

A method and an apparatus for the policy and charging rule function information maintenance are provided. The method includes: the Diameter Routing Agent DRA receives a message, which is sent during the session termination process or after the session is terminated between the network device and the Policy and Charging Rule Function PCRF, the DRA deletes its stored PCRF information corresponding to the information carried by the message. The trash information in the DRA can be deleted in time when the session is terminated, and the influence on the DRA information maintenance by the trash information can be avoided, and the phenomenon of theDRA memory space overflow can be avoided.