US Patent No. 9,351,325

POLICY CONTROL METHOD AND SYSTEM FOR CONVERGED NETWORK


Patent No. 9,351,325
Issue Date May 24, 2016
Title Policy Control Method And System For Converged Network
Inventorship Tong Rui, Shenzhen (CN)
Xiaoyun Zhou, Shenzhen (CN)
Assignee ZTE Corporation, Shenzhen, Guangdong Province (CN)

Claim of US Patent No. 9,351,325

1. A policy control method for a converged network, comprising:
in a roaming scenario, when receiving an IP connectivity access network (IP-CAN) session request sent by a packet data network
gateway (P-GW), a visited policy and charging rules function (V-PCRF) learning that a user equipment (UE) accesses a mobile
network through a wireless local area network (WLAN) access, and establishing a subsession serving WLAN Offload when establishing
an S9 session to a home policy and charging rules function (H-PCRF), and carrying a WLAN Offload instruction; and

the H-PCRF receiving an IP-CAN session establishment request sent by the P-GW, learning that the UE accesses the mobile network
through the WLAN access, and sending an establishment request for triggering to establish the S9 session to the V-PCRF.