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Interworking and interoperability of GPRS systems with systems of other technology families

  • US 6,912,389 B2
  • Filed: 05/31/2001
  • Issued: 06/28/2005
  • Est. Priority Date: 01/12/2001
  • Status: Expired due to Term
First Claim
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1. An interworking and interoperability function for use in joining a GPRS wireless system with a second wireless system of a different technology family comprising:

  • a first GPRS HLR emulation component adapted for connection to said GPRS wireless systems, said first GPRS HLR emulation component providing a GPRS HLR interface to a mobile station instead or an HLR in the GPRS system, the mobile station having wireless communications supplied by the second wireless system and having a home GPRS registration;

    a second MSC/VLR emulation component adapted for connection to an HLR node of said second wireless system that utilizes a technology family being one of analog cellular, time division multiple access cellular, and code division multiple access cellular;

    a message translation component operatively connected to said first and second emulation components and adapted to translate messages received at one of said emulation components into a form compatible with the other of said emulation components, the message translation component translating a first HLR service request from the mobile station that is of a form compatible with the first wireless system into a second HLR service request that is of a form compatible with the second wireless system;

    the second MSC/VLR emulation component transmitting the second HLR service request to an HLR component of the second wireless system for servicing the second request.

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