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:
Apr. 15, 2003
Filed:
Feb. 10, 1999
Fujitsu Limited, Kawasaki, JP;
Abstract
A mobile communication system employs narrow paging areas for calling mobile stations without increasing location registration requests to a location management center. This system reduces useless calls and improves the efficiency of use of radio resources. Each local area ( - ) of the system is divided into narrow paging areas ( - ). A storage unit ( - ) is installed in each base station ( - ) or exchange station ( - ), to register mobile stations ( - ). When a base station receives a location registration request from a mobile station, the base station registers the mobile station in the storage unit, and if necessary, transmits a location registration request to the location management center. Upon receiving an incoming call to a mobile station, the exchange station sends an inquiry about the mobile station to the storage units, receives an answer from the storage units, finds a paging area where the mobile station is present from the answer, and issues a call request to base stations that belong to the found paging area.