Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-01-31
2006-01-31
Trost, William (Department: 2683)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S421000, C455S423000, C455S435200, C455S525000
Reexamination Certificate
active
06993331
ABSTRACT:
The present invention relates to a UMTS (Universal Mobile Telephone System) type system of mobile radio telecommunications that is robust with respect to radio network controller failures: According to the invention, following a temporary interruption in operation of a radio network controller of the UTRAN network of the system and after the reinitialization of this radio network controller, the UTRAN network sends a piece of information to all the cells controlled by the reinitialized radio network controller or by its neighboring radio network controllers. This piece of information prompts the user equipment devices that are in these cells to make their presence known to the UTRAN network. According to the invention, the user equipment devices in connected mode are capable of processing said piece of information.
REFERENCES:
patent: 6157633 (2000-12-01), Wright
patent: 6411816 (2002-06-01), McDonald et al.
patent: 2001/0046839 (2001-11-01), Latva-Aho et al.
patent: WO 00/60823 (2000-10-01), None
patent: WO 00/60823 (2000-10-01), None
XP 002176718, Unerversal Mobile CommunicationsSystem, ETSI, Dec. 1, 2000.
D'herbemont Luc
Garcin Thierry
Gouere Francois
Roberts Michael
Kim Wesley
Lucent Technologies - Inc.
Trost William
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