Method of restricting the use of a radio terminal and an associated restriction device
AssigneeNortel Networks Limited
InventorsThierry Lucidarme, Pierre Lescuyer
Life of this patent
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Abstract
A request to access the network sent by a terminal is intercepted and a selective restriction criterion is evaluated on the basis of parameters relating to the intercepted access request. A radio signal is sent to jam an acknowledgment signal sent by the network in response to the access request if the selective restriction criterion is satisfied.
Claims14
A method of restricting the use of a radio terminal able to communicate with a mobile radio network adapted to transmit an acknowledgment signal in response to receiving a network access request from the terminal, the method comprising the following steps:
- intercepting a network access request sent by the terminal;
- evaluating a selective restriction criterion on the basis of parameters relating to the intercepted access request;
- and
- sending a radio signal to jam the acknowledgment signal if the selective restriction criterion is satisfied.
A device for restricting the use of a radio terminal able to communicate with a mobile radio network adapted to transmit an acknowledgment signal in response to a request to access the network received from the terminal, the device comprising means for intercepting a request to access the network sent by the terminal, means for evaluating a selective restriction criterion on the basis of parameters relating to the intercepted access request, and means for sending a radio signal to jam the acknowledgment signal if the selective restriction criterion is satisfied.
Dependencies are inferred from the claim text.