Cellular communications systems

Details Cellular communications systems Cellular communications systems

1997-06-27

2000-11-07

Hunter, Daniel S.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455435, 455514, H04Q 720

Patent

active

061448575

ABSTRACT:
In a mobile telephone network, a home location register (HLR) is provided with one or more cascaded home location registers to which some of the subscribers are allocated so as to share the workload in processing the subscriber information requests that are involved in the setting up of calls. Routing of requests to the correct HLR is simplified by routing all such requests to the original or master HLR and forwarding only those requests for which data is stored on one of the back-up or cascaded HLRs. This avoids the need for changes in the existing system routing plan. In a further embodiment two HLRs may form a mutually boosting pair.

REFERENCES:
patent: 5711002 (1998-01-01), Foti
patent: 5761500 (1998-06-01), Gallant et al.
patent: 5854982 (1998-12-01), Chambers
patent: 5878348 (1999-03-01), Foti

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