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:
Jul. 02, 2002
Filed:
Jul. 02, 1999
Jan Kreppel, Penzberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
Proceeding from the handling of a packet data service in the mobile radio telephone network by at least one service network node (SGSNa, SGSNn) in conjunction with an access network node (GGSN) for the transmission of packet data, the following occurs. An interworking of the packet data service with network functions of an intelligent network whereof a service switching function (SSF) is interconnected with the respective service network node (SGSNa, SGSNn) and a service control function (SCF) is connected via an interface to the service network node (SGSNa, SGSNn) with integrated service switching function (SSF). Given change of the mobile subscriber from one coverage area into another coverage area, a switch is effected from an old association that exists between the service switching function (SSF) integrated in the previous service network node (SGSNa) and the service control function (SCF) to a new association that exists between the service switching function (SSF) integrated in the new service switching node (SGSNn) and the service control function (SCF). The switching is in addition to the switching from the one tunnel (TUa) to the other tunnel (TUb).