Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-12-06
2010-12-14
Ramakrishnaiah, Melur (Department: 2614)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S422100, C455S450000, C455S418000, C370S338000
Reexamination Certificate
active
07853266
ABSTRACT:
The invention concerns a method of managing an overload in a cell of a cellular radio communication network comprising a plurality of user equipments (UE) each of which can switch between a plurality of states including a Cell_DCH state and a Cell_FACH state. According to the invention, this kind of method comprises the following steps, for each request (RAB request) for allocation of radio resources to a given user equipment in an initial state, before sending said request, in which initial state no radio resource is allocated to said user equipment:obtaining for said cell a current rate of successful transitions for the change from the Cell_FACH state to the Cell_DCH state;detecting an overload of the Cell_FACH state by analyzing said current rate of successful transitions;if an overload is detected, rejecting said request;if no overload is detected, accepting said request and switching said user equipment from said initial state to a final state in which at least one radio resource is allocated to said user equipment.
REFERENCES:
patent: 7058398 (2006-06-01), Livet et al.
patent: 2002/0052206 (2002-05-01), Longoni
patent: 2004/0132441 (2004-07-01), Livet
patent: 2005/0233753 (2005-10-01), Hamabe et al.
L. Virtej et al, “Radio resource control for GSM/EDGE radio access network (GERAN)—inter radio access technology and inter-mode procedures” VTC Fall 2001. IEEE 54thVehicular Technology Conference, Proceedings. Atlantic City, NJ, Oct. 7-11, 2001, IEEE, vol. 1 of 4, Conf. 54, Oct. 7, 2001, pp. 1417-1421, XP010562195.
Blanc Patrick
Moinet Grégoire
Alcatel Lucent
Fay Sharpe LLP
Ramakrishnaiah Melur
LandOfFree
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