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. 15, 2008
Filed:
Feb. 20, 2003
Applicant:
Shozo Fujino, Tokyo, JP;
Inventor:
Shozo Fujino, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A general packet radio service (GPRS) system includes radio network controllers (RNC), support nodes (SGSN) and a gateway node (GGSN) connected in a hierarchical order for packet transmission between mobile stations in the system. Each of each RNC, each SGSN and GGSN has a communication path controller to return the request of coupling toward subordinate node or controller if the subordinate mobile stations include the destination mobile station. Accounting for the packet service is based on the return of the packets.