Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2011-06-28
2011-06-28
Dean, Raymond S (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S432100, C455S521000
Reexamination Certificate
active
07970426
ABSTRACT:
The present disclosure provides an efficient and effective method for allocating provisional PUIDs and PGIDs to subscriber units and groups during a failure, such that when the communication system recovers, there is a decrease in or elimination of the number of dropped or missed communications. The present disclosure reserves a range of provisional PUIDs and PGIDs for resource controllers operating in a region of system failure to assign when subscriber units roam into the region of failure in the communication system. The present disclosure addresses creating PUID and PGID ranges for resource controllers to assign to roaming subscriber units in order to allow for assignment of PUIDs and PGIDs during periods of subsystem isolation and site trunking, i.e., when the particular site or subsystem cannot communicate with the rest of the communication system. The present disclosure also addresses recovering from these situations, re-registration, and reallocation of PUIDs and PGIDs.
REFERENCES:
patent: 2002/0115438 (2002-08-01), D'Herebemont et al.
patent: 2003/0050097 (2003-03-01), Amirijoo et al.
patent: 2006/0046724 (2006-03-01), Ton et al.
patent: 2008/0130585 (2008-06-01), Park et al.
patent: 2008/0188220 (2008-08-01), DiGirolamo et al.
PCT International Search Report Dated Mar. 31, 2010.
Maher John W.
McDonald Daniel J.
Poe Brian R.
Dean Raymond S
Hughes Terri S.
Motorola Solutions, Inc.
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