A General Packet Radio ServiceGPRS system with multi Gateway GPRS Supporting NodeGGSN and A method of selecting GGSN

摘要

The present invention is to allow a flexible multi cope with increased system availability and traffic changes through decentralization packet gateway exchange device (Gateway GPRS Supporting Node: GGSN) having a general packet radio service (General Packet Radio Service: GPRS) to a system and method GGSN selection. GPRS system with multiple GGSN according to the present invention, the packet-control the connection operation for the session request from the mobile station for receiving a radio-based service and a packet to process the packet transfer according to the associated session relay node (SGSN); Multiple GGSN part having been selected according to the session request from the mobile station, a plurality of sub-GGSN to perform the operation of the gateway between the GPRS system and external networks for packet transmission and reception by the SGSN; Store his name and IP information for a plurality of sub-multiple GGSN GGSN and SGSN portion according to the selection of the domain name system to manage (DNS); Connected between multiple GGSN part and the outer gill net operations to manage the DNS and communication; And located in the final end point of the GPRS system comprises a border router that performs packet routing operation between the external network. According to the present invention, it is possible to increase the efficiency of the GPRS system by to have a strong and flexible for the traffic variation in failure.