摘要:
A method and apparatus for configuring compressed mode operation comprises detecting a compressed mode pattern or pattern sequence scheduling three or more consecutive compressed mode frames and taking appropriate mitigation action. In a first aspect a non activation construction is suppressed and the compressed mode pattern sequence is activated. In the second aspect if a pattern or sequence scheduling three or more consecutive compressed mode frames is identified, activation is suppressed. In a third aspect if such a patent or sequence is identified, a normal frame is inserted in the pattern sequence replacing a compressed mode frame.
摘要:
A method in a wireless telecommunications device operative with a plurality of radio access networks, the method comprising: when operating with a first radio access network reading at least one ciphering variable applicable in the second radio access network (e.g. in UMTS reading the value of a variable START from the USIM of the device). When at least one ciphering variable applicable in the second radio access network renders ciphering in the second radio access network infeasible without further authentication (e.g. in UMTS when the value of START in USIM is equal to a value THRESHOLD), using a substitute value for the ciphering parameter (e.g. START) when establishing a connection with the second radio access network.
摘要:
A method of creating a candidate list of available cells for access by a wireless communications device, the method comprising, for each of a plurality of supported frequencies: measuring a received signal strength, and suppressing cell detection on a frequency if: a stored result of a determination of whether a cell was previously detected on the frequency is negative; and the measured received signal strength for the frequency is below a threshold criterion.
摘要:
A wireless communications device, and a method of operating a wireless communications device, the device operative to receive broadcast system information from a network, the device being arranged to: receive first broadcast system information, said first broadcast system information defining scheduling information for a plurality of items of further broadcast system information; define a subset containing a plurality of items of further broadcast system information; receive an item of further broadcast system information relating to whether transmit diversity is in use; when it is determined that the device has received further broadcast system information relating to whether transmit diversity is in use, wait until one of the following conditions has been met before implementing on the device any changes in transmit diversity as defined by the further broadcast system information relating to whether transmit diversity is in use: i) the device having received all members of the subset of further broadcast system information; or ii) the quality of a signal received by the device being determined to be below a threshold.
摘要:
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.
摘要:
The present invention concerns a method of processing traffic data in Layer 2 of a wireless communications system, whereby the MAC layer is arranged, after receipt of a traffic data volume report from the RLC layer, to process said data volume report and to then issue an acknowledgement message to the RLC layer. The method ensures that the RLC and MAC layers are synchronised with respect to traffic data processing. The MAC layer may be arranged to issue an acknowledgement to the RLC layer only where it determines from processing a data volume report that the RLC layer is not permitted to transmit data in a next or subsequent corresponding TTI. The present invention also concerns a process for data discard in a Radio Link Control (RLC) layer of a Wideband Code Division Multiple Access (WCDMA) wireless communications system such as a Universal Mobile Telecommunications System (UMTS). The process involves, responsive to the triggering of a data discard operation, determining whether the RLC layer is permitted to transmit data. Where it is determined that the RLC layer is not permitted to transmit data in a next or subsequent TTI, the method includes the step of informing the RLC layer that data is not required.
摘要:
Methods and apparatus for use in reducing airlink congestion and processing time associated with ciphering information communicated between a wireless communication network and a mobile station are disclosed. From the standpoint of the mobile station, one illustrative method involves the steps of receiving a ciphering mode information message from a wireless network; identifying and processing valid radio bearer downlink ciphering activation time information in the ciphering mode information message when it is part of a security mode command message; and refraining from processing any valid radio bearer downlink ciphering activation time information in the ciphering mode information message when it is part of a message that is different from the security mode command message (i.e. when it is part of a radio network subsystem relocation procedure). The method may include the additional steps of producing valid radio bearer uplink ciphering activation time information for inclusion within a response message when the ciphering mode information message is part of the security mode command message; refraining from producing any valid radio bearer uplink ciphering activation time information when the ciphering mode information message is part of a message that is different from the security mode command message; and causing the response message to be sent to the wireless network.
摘要:
In a mobile telecommunications system comprising a network of a plurality of cells and at least one user equipment device, the method comprises, in the network, sending a first message indicating notification of a system information change and sending a repeat of the notification of a system information change.
摘要:
In a mobile telecommunications system comprising a network of a plurality of cells and at least one user equipment device, the user equipment is arranged, when the user equipment re-configures itself to enter a new state or performs cell reselection, to read broadcast system information and, when the broadcast system information indicates a change in system information, to update the system information of the user equipment device.
摘要:
A method and apparatus for processing messages received by a device from a network. The method comprises receiving a message that indicates that the device should be in a dedicated channel state (such as Cell_DCH), wherein the message is a message other than a reconfiguration message (e.g. CUC) and, in response to the message, clearing from the device any record of a cell identifier (C_RNTI).