EP0973351A1

5G,4G,3G,2G

Title

Method and arrangement for managing a service in a mobile communications system

Application Number:

EP19990305673

Publication Date:

19-01-2000

Current Assignee:

Family ID:

Application Date:

16-07-1999

Declaring Company:

Publication Country:

US

Priority Date:

17-07-1998

Title

Method and arrangement for managing a service in a mobile communications system

Application Number:

EP19990305673

Family ID:

Publication Country:

US

Publication Date:

19-01-2000

Application Date:

16-07-1999

Priority Date:

17-07-1998

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention pertains to a method and arrangement for managing a service
in a mobile communications system, mobile station and an intelligent module
in a mobile station. An idea of the invention is that the data needed in the
mobile station for a mobile communications service are transferred in
encrypted form to several mobile stations at a time. The encryption is based
on a key which is transferred individually to mobile stations. Applied to mobile
station location this means that the location of a mobile station is determined
in the mobile station by means of the timing difference of the signals received
from at least two (preferably at least three) base stations and on the basis of
the location data of said base stations. The location data are transferred to
the mobile station in encrypted form so that they can be utilized only by
mobile stations to which the operator has delivered a decryption key needed
to decrypt the location data. The decryption key is transferred preferably
individually to each mobile station. Decryption may occur in an intelligent
module of a mobile station, in which case no location data appear in a non-encrypted
form outside the intelligent module, resulting in data confidentiality.
If chargeability is the only requirement, decryption and location calculation
may also take place elsewhere in the mobile station. The decryption key can
be changed, in which case the new decryption key is transferred to the mobile
station advantageously periodically in conjunction with the location update
procedure.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.