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. 08, 2001
Filed:
Aug. 22, 1997
Mikael Andersson, Linköping, SE;
Nils Peter Östrup, Linköping, SE;
Kjell Anders Westroos, Linköping, SE;
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Abstract
In a cellular telecommunications network, geographical restriction is stored for a mobile subscriber in the subscriber's record (,A,,B,,C,,D) in a database at a node of the network, preferably at a home location register [HLR] (,). In accordance with one mode of the invention, the mobile station is permitted to operate only in cells identified in the subscriber's record in the HLR. In accordance with this mode, only applicable cells listed in the subscriber's record are paged when a call is direct to the mobile station, and the mobile station can only originate calls and sustain calls from such cells. In a variation of this mode, calls originated by the mobile station in the applicable cells listed in the subscriber's record can be sustained when the mobile station travels into non-applicable cells. In accordance with another mode known as “soft” restriction, a first (e.g., reduced) tariff is applied to calls originated and received in cells listed in a geographical restriction field of the subscriber's record in the home location register, with calls to and from other cells being permitted at a second (e.g., standard) tariff.