Deutschetelekom Ag

T-mobile International Austria Gmbh

Deutsche Telekom (uk) Limited

Michele Zarri

Karl-Heinz Nenner

Kurt Bischinger

Michael Kurz

Mari Melander

Rene Ververgaert

Holger Debelts

Georg Schweflinghaus

A method for indicating an emergency call availability to a Mobile Equipment includes: storing, at a memory device attached to the ME, information regarding the possibility of unauthenticated emergency calls in dependency of availability data, determining that the ME is in a limited service state; and indicating, by the ME, emergency call availability. The availability data indicates, for at least a first mobile telecommunications network and a second mobile telecommunications network, whether: all unauthenticated emergency calls are allowed with or without an identification module inserted in the ME, unauthenticated emergency calls are only allowed if a valid identification module is inserted in the ME, or unauthenticated emergency calls are not allowed.

Method for indicating an emergency call availability to a mobile equipment (ME), method for establishing an emergency call

Method for operating one or more cells () of a cellular mobile network, each cell () being identifiable by an emitted cell identifier (CSG_ID) use being limited/limitable to closed subscriber groups by the cell () having a corresponding identifier (CSG_ID) and the cell terminals (UE, UE, UE) being registered in the respective cell () for use of the cellular mobile network services only after a positive matching with a positive list of authorized cell identifiers (CSG_ID, CSG_ID, CSG_ID) which are stored in the cell terminal (UE, UE, UE), the cell () emitting one or more further cell identifiers (CSG_ID, CSG ID) in parallel in addition to a first cell identifier (CSG_ID), and that registration in the cell () and use of network services can take place by a first closed subscriber group to which a first group of cell terminals (UE) belongs, whose respective positive lists contain the first cell identifier (CSG_ID), and that registration in the cell () and use of network services can take place by one or more further open or closed subscriber groups to which one or more other groups of cell terminals (UE, UE) belong whose positive lists contain one or more of said one or more further cell identifiers (CSG ID, CSG ID).

Method for operating a closed subscriber group (CSG) cell for open network access

Growing community of inventors

London, United Kingdom

Michele Zarri