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. 22, 2014
Filed:
Jan. 30, 2009
Jari Tapio Vikberg, Järna, SE;
John Walter Diachina, Garner, NC (US);
Magnus Olsson, Stockholm, SE;
Peter Östrup, Linköping, SE;
Jari Tapio Vikberg, Järna, SE;
John Walter Diachina, Garner, NC (US);
Magnus Olsson, Stockholm, SE;
Peter Östrup, Linköping, SE;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
In order to prevent a mobile terminated (MT) call to a user equipment (UE) from being lost by addressing a Location Area/Tracking Area (LA/TA) mismatch problem that could occur during a circuit switched (CS) Fallback, the method comprises the steps of: receiving a paging message from a mobility management entity, MME, where the paging message identifies suitable location areas, the paging message is sent because a first mobile switching center, MSC, received a MT call request for the UE; determining that there are no 2G/3G cells belonging to the suitable location areas based on a current location of the UE; identifying a target 2G/3G cell in a location area associated with the current location of the UE but not part of the 2G/3G cells belonging to the suitable location areas; and enabling a signaling connection to be established between the UE and the first MSCvia a second mobile switching center, MSC, where the second MSCinterfaces with a base station controller, BSC, or a radio network controller, RNC, that manages the target 2G/3G cell, where the signaling connection allows the MT call to be established with the UE.