A network system, policy management control server and policy management control method

Abstract

The embodiment of the invention discloses a network system, comprising a network access server, an authentication charging server and a service server, also comprising: a strategy manage control server for acquiring user service using state information to generate strategy control information according to the service server and / or the authentication charging server, the strategy control information is used for directing the network access server to manage and control the conversation of users, and sending the generated strategy control information to the network access server; the network access server manages and controls the conversation of users according to the strategy control information. The embodiment of the invention also discloses a strategy manage control server, a service server and an authentication charging server. The invention can improves user conversation reliability of a NAS device during using the service.

Description

technical field [0001] The invention relates to the communication field, in particular to a network system, a policy management control server and a policy management control method. Background technique [0002] At present, various IP-based network access technologies allow people to easily use various terminals to access the Internet or Intranet network. Various network access technologies require corresponding network access server (NAS, Network Access Server) equipment and authentication, authorization and accounting server (AAA, Authentication Authorization Accounting) equipment. For example, the telephone dial-up access of the fixed network requires a dial-up access server and AAA equipment, and the IP access of the general packet radio service (GPRS, General Packet Radio Service) requires a GPRS gateway support node (GGSN, Gate GPRS Supproting Node) and AAA equipment. Among them, the NAS device is responsible for connecting user sessions from bearer networks of diffe...

AI Technical Summary

Problems solved by technology

Between the NAS device and various service servers in the IP service network, the NAS device requests service from the service server. After the user passes the authentication and authorization and successfully accesses the IP service network, the AAA server will not actively contact the user. Session re-authentication, authorization, and update billing. In the process of providing business services for users, the business server finds that the user session status is incorrect, the balance of pre-paid users is insufficient, the credit limit of post-paid users is insufficient, or the user is not satisfied. When a certain service is not allowed to be accessed, the service server will control the user's session accordingly, such as cutting off the user's session or blocking the user's message based on the access IP address, port and IP protocol number. The user session status on the service server side will change, but because the NAS device cannot understand the control actions on the user session on the service server side, the user session on the NAS device side will remain in the original state, for example, when the service server has cut off the user session or is blocked When a user accesses a packet based on the access IP address, port, and IP layer protocol number, the NAS device will not cut off the user session or block the user's access to the packet based on the access IP address, port, and IP layer protocol number

There are only active service requests from the NAS device to the AAA device and between the NAS device and the service server between the NAS device and the AAA device and between the NAS device and the service server in the prior art, and the AAA device and the service server cannot actively control the NAS device. As a result, the reliability of user sessions on the NAS device side during business use is very low

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