Methods and means related to the maintenance of connections...

Details Methods and means related to the maintenance of connections... Methods and means related to the maintenance of connections...

2008-01-29

2008-01-29

Perez-Gutierrez, Rafael (Department: 2617)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C455S423000, C455S452100, C455S466000, C455S560000, C370S328000, C370S329000, C370S352000, C370S394000

Reexamination Certificate

active

10451827

ABSTRACT:
This new invention is a method of re-establishing MS-SGSN connections after a partial restart of SGSN, i.e., only the Gb-interface is restarted. The re-establishment is achieved without detaching the MS. With this method Ciphering is re-synchronised, PDP-contexts in unacknowledged mode are re-established, and SMS traffic over GPRS is re-established, while PDP-contexts in acknowledged mode are deactivated with order to re-activate. When the MS is moving within the coverage of a SGSN, the invention can be used to move the context closer to the used Gb-link. When the MS request better Quality of Service, the MS context can moved to more suitable SGSN resource with this invention.

REFERENCES:
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patent: 6104929 (2000-08-01), Josse et al.
patent: 6370390 (2002-04-01), Salin et al.
patent: 6456858 (2002-09-01), Streter
patent: 6615269 (2003-09-01), Suumaki et al.
patent: 0 859 531 (1998-01-01), None
patent: WO 01/45347 (2001-06-01), None
Harry Newton, “Newton's Telecom Dicitonary,” Oct. 1998, Telecom Books, 14th Edition, p. 432.

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