Abstract: The details of an apparatus and method are disclosed for setting the Uplink RRC message sequence number for a new integrity protection configuration to be applied for signalling radio bearer RB0, on completion of a UTRAN MOBILITY INFORMATION procedure. The sequence number is set to a value such that the next RRC message to be sent on uplink RB0 will use the new integrity protection configuration.

Abstract: Apparatus and a method for ciphering messages in mobile telecommunications system user equipment and network are disclosed. The apparatus is arranged to store a plurality of current ciphering configurations and/or a plurality of old (previously applied) ciphering configurations and/or a plurality of new (future) ciphering configurations. Thus different ciphering configuration may be applied at different times and for different radio bearers.

Abstract: Apparatus and method for handling system information in mobile telecommunications system user equipment, wherein updates are applied in a defined order. In particular, in 3G UMTS systems, when System Information Block (SIB) SIB 11 and SIB 12 are received with information elements relating to cell information list (e.g. “intra-frequency cell info list”, “inter-frequency cell info list” and “Inter-RAT cell info list”) then the system information associated with the system information block information element in SIB 11 is applied before the system information associated with the system information block information element in SIB 12.

Abstract: Apparatus and a method for ciphering messages in mobile telecommunications system user equipment and network are disclosed. The apparatus is arranged to store a plurality of current ciphering configurations and/or a plurality of old (previously applied) ciphering configurations and/or a plurality of new (future) ciphering configurations. Thus different ciphering configuration may be applied at different times and for different radio bearers.

Abstract: Apparatus and a method for handling discard of a service data unit in universal mobile telecommunications system user equipment. Strategies for the radio resource control entity to handle discard of a service data unit by the radio link control entity are presented.

Abstract: Apparatus and a method for handling discard of a service data unit in universal mobile telecommunications system user equipment. Strategies for the radio resource control entity to handle discard of a service data unit by the radio link control entity are presented.

Abstract: Apparatus and a method for deriving a power measurement summation for use in universal mobile telecommunications system user equipment are disclosed. Conversion from a logarithm scale to a linear scale for summation and back again is avoided. The technique obviates the need for a mathematical processor to convert power measurements in a logarithmic scale (e.g. decibels dB, or dBw) into a linear scale (e.g. mW) to sum the power measurements or a ratio. The summed power component is calculated using data stored in the device (e.g. look up tables) without any need for conversion of the scale used.

Abstract: Apparatus and a method for handling discard of a service data unit in universal mobile telecommunications system user equipment. Strategies for the radio resource control entity to handle discard of a service data unit by the radio link control entity are presented.

Abstract: Apparatus and a method for handling discard of a service data unit in universal mobile telecommunications system user equipment. Strategies for the radio resource control entity to handle discard of a service data unit by the radio link control entity are presented.

Abstract: A method and apparatus for taking measurements in a mobile telecommunications system are disclosed, the system comprising a network of a plurality of cells and at least one user equipment device. The method comprises, at the user equipment device, receiving a measurement control set-up command and, in response the user equipment device, setting up the measurements. Then it monitors for a change in state of the UE and, in response to a change in state, issuing a measurement control pause command and, in response, the user equipment device stopping taking measurements, and maintains the measurement settings initialised previously. The device then monitors for a change in state of the UE and, in response to a change in state, issuing a measurement control resume command and, in response, the user equipment device resumes taking measurements with the maintained measurement settings.

Abstract: The details of an apparatus and method are disclosed for ensuring that a traffic volume measurement message does not have a validity of CELL_DCH when the user equipment in a UMTS communications system is in CELL_FACH state. The validity is set to other than CELL_DCH at a UTRAN or the UE rejects a message having a validity of CELL_DCH when the UE is in CELL_FACH state.

Abstract: Apparatus and a method for handling discard of a service data unit in universal mobile telecommunications system user equipment. Strategies for the radio resource control entity to handle discard of a service data unit by the radio link control entity are presented.

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.

Abstract: The details of an apparatus and methods of handling simultaneous universal terrestrial radio access network radio resource control procedures with activation times in a universal mobile telecommunications system user equipment are disclosed herein. According to one aspect, the apparatus includes a message handler to receive a received message from the UTRAN, a sequential processor to receive an ongoing command, a command store connected to the message handler to save the received command. The message handler determines if there is an existing command at the user equipment such that the user equipment appears to the UTRAN as though it were processing the select commands simultaneously while actually processing the existing command sequentially.

Abstract: Apparatus and a method for deriving a power measurement summation for use in universal mobile telecommunications system user equipment are disclosed. Conversion from a logarithm scale to a linear scale for summation and back again is avoided. The technique obviates the need for a mathematical processor to convert power measurements in a logarithmic scale (e.g. decibels dB, or dBw) into a linear scale (e.g. mW) to sum the power measurements or a ratio. The summed power component is calculated using data stored in the device (e.g. look up tables) without any need for conversion of the scale used.

Abstract: Air interface management apparatus for use in network-based control of measurements made by mobile user equipment with respect to cells of the network is adapted to detect conflict in content of measurement control messages instructing the report of pathloss measurement values. Conflict is detected in particular where the message specifies: a) an identity for a triggering event for which the category or categories of cell to be measured is determined at the receiver solely by said identity and comprises detected set cells, or b) periodical measurement in respect of a detected set cell. Pathloss measurements are not possible in these cases. The apparatus provides a mechanism for dealing with detected conflict by blocking transmission of, or response to, a measurement control message giving rise to conflict. Alternatively, the message or the response may be modified to avoid the conflict.

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.

Abstract: Apparatus and a method for ciphering messages in mobile telecommunications system user equipment and network are disclosed. The apparatus is arranged to store a plurality of current ciphering configurations and/or a plurality of old (previously applied) ciphering configurations and/or a plurality of new (future) ciphering configurations. Thus different ciphering configuration may be applied at different times and for different radio bearers.

Abstract: Apparatus, and an associated method, for routing data in a communication device defined in terms of a protocol stack. The protocol stack includes an upper logical layer, a lower logical layer, and a mid stack layer. A determiner determines the configuration of the radio bearer by which the data is to be communicated. If a determination is made that the radio bearer is configured such that it does not require its application to the mid stack layers, a data bypasser causes the data to bypass the mid stack layer. If, conversely, the data is to be applied to the mid stack layer, the data is caused to be routed therethrough.

Abstract: Mobile user equipment for use in a cellular communications environment performs an improved cell selection on transitions out of a connected mode state. The transitions might be from one connected mode state to another or from a connected mode state to idle mode. The improvement in cell selection lies in assembling the list of candidate cells prior to cell selection. In the prior art, the list of candidate cells would usually be restricted to the serving cell or active cells supporting communication between the equipment and the network prior to transition. In embodiments of the invention, the list might comprise cells which are not the serving cell or which are outside the active set, for example a network-preferred cell or cells neighbouring the serving cell or cells of the active set.