Mobile telecommunications system that is robust with respect to radio network controller failures
First Claim
1. A system of mobile radio telecommunications comprising a core network, a UTRAN network and a plurality of user equipment devices, said UTRAN network comprising radio network controllers, each controlling one or more coverage areas called cells in which the user equipment devices move about, each user equipment device being capable of working selectively in two modes of operation, a connected mode in which resources of the system are assigned to the setting up of a connection with the user equipment device and an idle mode wherein, following a temporary interruption in operation of a radio network controller of the UTRAN network and a reinitialization of this radio network controller, the UTRAN network sends a piece of information to the cells controlled by the reinitialized radio network controller or by its neighbouring radio network controllers, this piece of information prompting the user equipment devices that are in these cells to make their presence known to the UTRAN network, and in that said user equipment devices in connected mode are capable of processing said piece of information.
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Accused Products
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 neighbouring 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.
10 Citations
7 Claims
- 1. A system of mobile radio telecommunications comprising a core network, a UTRAN network and a plurality of user equipment devices, said UTRAN network comprising radio network controllers, each controlling one or more coverage areas called cells in which the user equipment devices move about, each user equipment device being capable of working selectively in two modes of operation, a connected mode in which resources of the system are assigned to the setting up of a connection with the user equipment device and an idle mode wherein, following a temporary interruption in operation of a radio network controller of the UTRAN network and a reinitialization of this radio network controller, the UTRAN network sends a piece of information to the cells controlled by the reinitialized radio network controller or by its neighbouring radio network controllers, this piece of information prompting the user equipment devices that are in these cells to make their presence known to the UTRAN network, and in that said user equipment devices in connected mode are capable of processing said piece of information.
Specification