Patent ID: 9641697
Date: 2017-05-02
CPC Classifications: H04L,H04M,H04W

Claim:
1. A policy and charging control method, applied in a Local Break Out (LBO) roaming scenario, comprising: a visited network Policy and Charging Rules Function (V-PCRF) receiving an IP-Connectivity Access Network (IP-CAN) session establishment instruction message transmitted by a gateway of a visited network; when the V-PCRF determines according to the IP-CAN session establishment instruction message that a policy decision is made for an IP-CAN session of a roaming user through visited network subscription, the V-PCRF obtaining visited network subscription information of the roaming user from a visited network Subscription Profile Repository (V-SPR), and generating policy and charging control (PCC) rules according to the visited network subscription information; wherein the V-SPR is a Subscription Profile Repository (SPR) located in the visited network; the V-PCRF sending the PCC rules to the gateway of the visited network; wherein after the V-PCRF determines according to the IP-CAN session establishment instruction message that a policy decision is made for an IP-CAN session of the roaming user through visited network subscription, the method further comprises: the V-PCRF sending to the V-SPR a subscription update event notification; wherein after the V-PCRF obtains visited network subscription information of the roaming user from the V-SPR, the method further comprises: the V-PCRF receiving latest visited network subscription information of the roaming user transmitted by the V-SPR, when the V-PCRF finds that it is needed to update PCC rules during a process of visited network policy re-decision, sending latest PCC rules to the gateway of the visited network.