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:
Jan. 30, 2007
Filed:
Apr. 30, 2002
Jen-shun Yang, Hsinchuang, TW;
Chien-hsin Wang, Chungho, TW;
Chien-chao Tseng, Hsinchu, TW;
Jen-chi Liu, Hsinchu, TW;
Jen-Shun Yang, Hsinchuang, TW;
Chien-Hsin Wang, Chungho, TW;
Chien-Chao Tseng, Hsinchu, TW;
Jen-Chi Liu, Hsinchu, TW;
Industrial Technology Research Institute, Chutung, TW;
Abstract
The present invention discloses a method for applying a multi-protocol label switching (MPLS) network in general packet radio service (GPRS). The MPLS network is established by multiple differentiated service (DS) domains. Each DS domain is constructed by multiple label switching routers (LSRs) and label edge routers (LERs). The LER provides at least a service GPRS supporting node (SGSN) connected to a wireless network base station, and a gate GPRS supporting node (GGSN) connected to a packet switching network. At a signalling plane, IP addresses of all SGSNs and GGSNs are utilized to establish all one-to-one pre-created label switching paths (LSPs) in the MPLS network of the GPRS backbone network. At a transmission plane, the pre-created LSP and LSP tunneling transmit packets between SGSN and GGSN.