Serving soft handoffs between mobile switching centers that...

Details Serving soft handoffs between mobile switching centers that... Serving soft handoffs between mobile switching centers that...

2002-11-20

2008-03-25

Nguyen, Duc M. (Department: 2617)

Multiplex communications

Communication over free space

Using atm as a wireles protocol

C455S436000, C455S439000, C455S432200, C455S204000, C455S107000, C370S466000, C370S467000, C370S465000

Reexamination Certificate

active

07349354

ABSTRACT:
The present invention may relate to the following steps. Converting a bundle of data from a first format of a first mobile switching center to a second format of a switch. Routing, at the switch, the bundle data in the second format. Converting the bundle of data from the second format to a third format of the second mobile switching center. The first format and the third format are different formats. Mobile switching centers manage and operate base stations. The first mobile switching center and the second mobile switching center may be owned and operated by different companies. Accordingly, the first and second mobile switching centers will operate using different formats (or protocols). This is made possible by converting data between formats so it can be routed at a switch. This provides a particular advantage. A cell phone can now transparently change between base stations that are owned and operated by different companies. Accordingly, users of a cell phone will not be annoyed by interruptions in their call when they change base stations.

REFERENCES:
patent: 6353621 (2002-03-01), Boland et al.
patent: 6553227 (2003-04-01), Ho et al.
patent: 6697623 (2004-02-01), Munk

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