The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2008
Filed:
May. 14, 2003
Seung-que Lee, Daejeon, KR;
Nam-hoon Park, Daejeon, KR;
Dae-sik Kim, Daejeon, KR;
Choong-ho Cho, Cheonan, KR;
Seung-Que Lee, Daejeon, KR;
Nam-Hoon Park, Daejeon, KR;
Dae-Sik Kim, Daejeon, KR;
Choong-Ho Cho, Cheonan, KR;
Abstract
A GPRS system having multiple GGSNs connected to a public network, for providing a packet-based mobile service, comprises: an SGSN for controlling a connection operation according to a session request of a mobile terminal for receiving the packet-based mobile service, and transmitting a packet according to a connected session; a multiple GGSN unit including a plurality of sub GGSNs, selected by the SGSN according to a session request by the mobile terminal, for transmitting and receiving packets; a DNS for storing DNS names and IP information in the GGSNs of the multiple GGSN unit according to selection of the SGSN; an operator network for managing the DNS and communication; and an edge router for performing packet routing between the GPRS system and the public network.