Apparatus and method for applying ciphering in universal mobile telecommunications system
AssigneeResearch In Motion Limited
InventorsNicola M. Funnell, Andrew Farnsworth
Life of this patent
Estimating the term…
Abstract
Apparatus and a method for ciphering messages in mobile telecommunications system user equipment are disclosed. The apparatus is arranged to receive ciphering configuration parameters in a Radio Resource Control (RRC) layer; forward ciphering configuration parameters to a Radio Link Control (RLC) or Medium Access Control (MAC) layer; and, in response to subsequent receipt of a message from the network, which message indicates that the user equipment device is to start ciphering, configuring the user equipment device to start ciphering using the ciphering configuration parameters in the RLC/MAC layer.
Claims11
A method for applying ciphering in a user equipment (UE), the UE configurable to be operable in a wireless telecommunications system, the method comprising, in the user equipment:
- receiving ciphering configuration parameters in a first layer;
- in response to receiving the ciphering configuration parameters, forwarding ciphering configuration parameters to a second layer;
- receiving, after the ciphering configuration parameters have been forwarded to the second layer, an indication to start ciphering;
- and
- using, after receiving the indication to start ciphering, the ciphering configuration parameters in the second layer.
A user equipment (UE) device configurable for use in a mobile telecommunications system, comprising:
- at least a first layer and a second layer in a protocol stack component, wherein the first layer is configured to receive ciphering configuration parameters and to enable the ciphering configuration parameters to be forwarded to the second layer in response to receiving the ciphering configuration parameters;
- and
- a receiver configured to receive a message indicating the UE is to start ciphering, where the ciphering will make use of the ciphering configuration parameters previously forwarded to the second layer.
A computer-readable medium carrying one or more sequences of instructions for applying ciphering in a user equipment (UE), the UE configurable for use in a telecommunications system, instructions to enable actions when executed in the UE, the actions comprising:
- receiving ciphering configuration parameters in a first layer;
- in response to receiving the ciphering configuration parameters, forwarding ciphering configuration parameters to a second layer;
- receiving, after the ciphering configuration parameters have been forwarded to the second layer, an indication to start ciphering;
- and
- using, after receiving the indication to start ciphering, the ciphering configuration parameters in the second layer.
Dependencies are inferred from the claim text.