Method and system for controlling policy and charging control information

Abstract

The invention relates to a method and a system for controlling policy and charging control information, and the method comprises the steps of accessing to a system core network by a non-3GPP access network through an S2c interface, implementing the step of obtaining the related business information during the Internet protocol communication access network IP CAN session establishment process at each time of being accessed to the PDN when accessing to a plurality of packet data networks PDN; and making the corresponding policy and charging control rules according to the related business information. The system comprises a PDN GW, a policy and charging rule function PCRF unit and an application function AF unit. The policy and charging control rules are made by obtaining the related businessinformation during the IP CAN session establishment process when accessing into a plurality of PDNs, thereby realizing the control of the policy and the charging, leading a network side to be capableof controlling the policy and the charging according to the made policy and charging control rules for users who access to the system core network by the non-3GPP access network through the S2c interface.

Description

technical field [0001] The invention relates to a network technology, in particular to a policy and charge control information control technology. Background technique [0002] In order to ensure the operability of the telecommunication network, it is necessary to perform accurate, timely and comprehensive control over the services in the telecommunication network and the resources used by the services, such as policy and charging control (Policy and Charging Control, PCC for short) on the services. In the 3rd Generation Partnership Project (3rdGeneration Partnership Project, hereinafter referred to as 3GPP) system, the policy and charging control functions are implemented by the PCC framework. [0003] In order to ensure the long-term competitiveness of the 3GPP system, the 3GPP organization proposed a system architecture evolution (System Architecture Evolution, hereinafter referred to as: SAE) project. In the SAE system, access to non-3GPP networks (such as WIMAX, CDMA20...

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Problems solved by technology

[0024] In the process of implementing the present invention, the inventor found at least the following defects in the prior art: the PCC process for users to access the core network of the system through a non-3GPP access network is all for the case of accessing through the S2a or S2b interface

However, when the UE accesses the system core network from a non-3GPP access network through the S2c interface, one gateway control session corresponds to multiple IP CAN sessions, and even the gateway control session may not exist. Therefore, the formulation of PCC rules and policies cannot be realized and issued

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