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 and apparatus are described for reducing link interference by a link between a user equipment component and an access network component. The user equipment component and access network component are connected by links over dedicated channels in respective directions, the link channel power in the first direction being controlled by the link channel in the second direction. A component sends in a second direction a link connection release message for a link connection in the first direction, identifies when the link connection in the first direction is released and, when the release is identified, releases the link connection in the second direction.
摘要:
A method and device for transmitting a sequence of messages from a handheld telecommunications device to a telecommunications network is described, the sequence of messages comprising a plurality of messages to be transmitted at specified times. The method comprises transmitting a message of the sequence of messages and turning off at least one of the transmitter and receiver of the device after transmission of at least one of the messages in the sequence of messages. The method has particular application to messages that terminate a radio connection, such as RRC Connection Release Complete messages in a UMTS system.
摘要:
A method in a mobile communications apparatus, the mobile communications apparatus operable to communicate with a wireless communications network using a plurality of frequency bands, the mobile communications apparatus being capable of performing a measurement of one frequency band while using another or the same frequency band, the method comprising sending a measurement capability message to the wireless communications network, the measurement capability message including an information element designating the requirement for compressed mode for more than one of a plurality of combinations of a particular frequency band being used when another or the same frequency band is measured.
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 for cell reselection from a serving cell to another cell in a radio access network covering a geographical area divided into a plurality of cells, the method comprising: attempting to reselect to a first other cell with a higher rank value than the serving cell; setting up a channel on the first other cell and initiating a completion period; conditional on the completion period expiring before the first other cell is identified as being a suitable cell, receiving cell measurements for cells and creating a cell ranking list of the cells based on rank values of the cells; conditional on a second other cell having a higher rank value than the serving cell or first other cell, attempting to reselect to the second other cell.
摘要:
A method, in a wireless communications device, for transitioning between communication states, the wireless communications device compliant for use in a Universal Mobile Telecommunications System (UMTS), the method comprising: checking for radio bearer mapping information for the communication state being transitioned to prior to sending an update message, where the transition between communication states is not a transition from a paging state to a bidirectional communication state using shared channels; and transitioning to the state to be transitioned to using the checked radio bearer mapping information for that state and sending the update message.
摘要:
A method, in a wireless communications device, for transitioning between communication states, the wireless communications device compliant for use in a Universal Mobile Telecommunications System (UMTS), the method comprising: checking for radio bearer mapping information for the communication state being transitioned to prior to sending an update message, where the transition between communication states is not a transition from a paging state to a bidirectional communication state using shared channels; and transitioning to the state to be transitioned to using the checked radio bearer mapping information for that state and sending the update message.
摘要:
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.