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:
Nov. 27, 2007
Filed:
Jul. 01, 2004
Vesa Blom, Pirkkala, FI;
Juha Bäck, Helsinki, FI;
Raili Numminen, Tampere, FI;
Veikko Juusola, Tampere, FI;
Vesa Blom, Pirkkala, FI;
Juha Bäck, Helsinki, FI;
Raili Numminen, Tampere, FI;
Veikko Juusola, Tampere, FI;
Nokia Corporation, Espoo, FI;
Abstract
A communication network is established by a connection to a user terminal that is capable of roaming amongst a plurality of serving areas. The network includes a controller for each serving area capable of routing a connection to a location covered by that serving area. If a controller serving the user terminal is faulty, a home database, which stores a plurality of identities of other controllers, is able to route the connection to the user terminal by selecting one of the other controllers that is valid.