Patent ID: 8621555

Claim:
An access control method for packet data network, comprising: a policy and charging rules function entity receiving an indication of gateway control session establishment from a bearer binding and event report function entity, wherein the indication of gateway control session establishment carries a session identifier, and the session identifier is used to identify whether a user equipment accesses the same packet data network again or the bearer binding and event report function entity relocation occurs; the policy and charging rules function entity acquiring the session identifier from the indication of gateway control session establishment, and judging whether the user equipment accesses the same packet data network again or the bearer binding and event report function entity relocation occurs according to the session identifier; wherein after the policy and charging rules function entity judging whether the user equipment accesses the same packet data network again or the bearer binding and event report function entity relocation occurs according to the session identifier, the method further comprises: a gateway in which the bearer binding and event report function entity resides sending to a gateway in which a policy and charging enforcement function entity resides a proxy binding update request message carrying the session identifier; the gateway in which the policy and charging enforcement function entity resides receiving the proxy binding update request message, the policy and charging enforcement function entity sending an indication of internet protocol connectivity access network session establishment to the policy and charging rules function entity, and carrying the session identifier in the indication of internet protocol connectivity access network session establishment; the policy and charging rules function entity associating the indication of gateway control session establishment with the indication of internet protocol connectivity access network session establishment according to the session identifier.