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:
Jun. 28, 2005
Filed:
May. 31, 2001
Penny Lynne Bright, Naperville, IL (US);
Douglas Harold Rollender, Bridgewater, NJ (US);
Kamal K. Verma, Darien, IL (US);
Penny Lynne Bright, Naperville, IL (US);
Douglas Harold Rollender, Bridgewater, NJ (US);
Kamal K. Verma, Darien, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A GPRS interworking and interoperability function (IIF) is interposed between a serving GSM/GPRS wireless system and a second wireless system of a different technology family to allow a mobile station homed to the second wireless system to operate in the GSM/GPRS system. The IIF executes or emulates the behavior of a GPRS HLR when communicating with the GSM/GPRS system, and executes or emulates the behavior of an MSC/VLR of the home system technology family when communicating with the home system. When a mobile station registers in the serving system, the MSC/VLR portion of the IIF transmits a registration notification message to the home system HLR specifying the address of an associated SGSN as though it were an MSC.