EP0978958B1

5G,4G,3G,2G

Title

Mobile communication method and mobile communication system

Application Number:

EP19980917680

Publication Date:

21-07-2010

Family ID:

Application Date:

24-04-1998

Declaring Company:

Publication Country:

US

Priority Date:

24-04-1997

Title

Mobile communication method and mobile communication system

Application Number:

EP19980917680

Family ID:

Publication Country:

US

Publication Date:

21-07-2010

Application Date:

24-04-1998

Priority Date:

24-04-1997

Declaring Company:

Abstract  Abstract

When a network pages the temporary user mobile identifier of a mobile
station, the mobile station sends a response to the network. Next, the network checks
the authenticity of the user using a ciphering key, corresponding to the temporary user
mobile identifier and a random number. If the temporary user mobile identifier is
authenticated, a normal incoming call acceptance procedure is executed. If the mobile
station is authenticated although the temporary user mobile identifier is wrong, the
network reassigns a new temporary user mobile identifier to the mobile station and
stops the current communication. In communication, the network and the mobile
station mutually notify encipherment-onset time and negotiate about encipherment
manner with each other. In addition, diversity handover is commenced upon a call
attempt. Furthermore, if a branch replacement is necessary, the current branch is
replaced by new branches capable of executing the diversity handover. Additionally,
when a new call occurs to or from the mobile station capable of treating a plurality of
calls simultaneously, the mobile station uses the same branch structure and the same
communication frequency band for all of calls. Additionally, when a new call occurs to
or from the mobile station capable of treating a plurality of calls simultaneously, a
branch structure and a communication frequency band, which can continue all of the
calls, are selected and used. Therefore, the mobile communications system is suitable
for transmission of various sorts of data in accordance with the development of
multimedia.

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.