M-STACK LIMITED Patent applications |
Patent application number | Title | Published |
20110136489 | CELL SELECTION IN MOBILE COMMUNICATIONS - 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. | 06-09-2011 |
20110136487 | APPARATUS AND METHOD FOR OPERATING A COMMUNICATIONS DEVICE IN A MOBILE COMMUNICATIONS NETWORK - 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. | 06-09-2011 |
20110117918 | WIRELESS TELECOMMUNICATION SYSTEM - A method and apparatus for processing a message in a mobile, telecommunications device. The method comprises: receiving a Cell Update Confirm (CUC) message; determining whether the device has an empty C_RNTI variable; when the device has an empty C_RNTI variable, determining whether the CUC message includes a new C_RNTI; when the CUC message includes a new C_RNTI and the CUC message would cause the device to enter a state which requires the UE to respond to the message before entering the state, carrying out at least one further step prior to entering the state. | 05-19-2011 |
20110116633 | APPARATUS AND METHOD FOR DETERMINING UPLINK CIPHERING ACTIVATION TIME IN UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM USER EQUIPMENT - The details of an apparatus and method for determining uplink ciphering activation time in universal mobile telecommunications system user equipment are disclosed herein. The ciphering activation time is determined for radio bearers other than RB | 05-19-2011 |
20110081887 | Apparatus and Method for Handling a Connection Reject Message - There is provided a method, in a wireless communications device, the method comprising: receiving from a first RAT a reject message, the reject message indicating a period of time; camping on a cell of a second RAT; disallowing camping on a cell of the first RAT unless at least one of the following criteria are met: the period of time has elapsed; and the wireless communications device receives a further message indicating that the first RAT has confirmed it will accept a connection from the wireless communications device. | 04-07-2011 |
20100279654 | Apparatus and Method of Handling Simultaneous Universal Terrestrial Radio Access Network Radio Resource Control Procedures Which Change the Security Configuration in a Universal Mobile Telecommunications System User Equipment - The details of an apparatus and method of handling simultaneous universal terrestrial radio access network radio resource control procedures which change the security configuration in a universal mobile telecommunications system user equipment are disclosed herein. According to one aspect of the present application, there is provided a user equipment apparatus having a message handler, a sequential processor, a command store, and a security configuration change detector, wherein said message handler is coupled to said command store, is coupled to said sequential processor, and is coupled to said security configuration change detector to save, process, and detect configuration changes in commands respectively, and to determine if there is an existing command at the user equipment, such that the user equipment appears to the UTRAN as though it were processing commands simultaneously. According to another aspect, there is provided a method of processing simultaneous commands at a user equipment having a security configuration, including the steps of: determining if there is an existing command at the user equipment; upon reception of a received command: suspending the existing command processing; determining if commands contain a security configuration change; and either rejecting the received command; or saving the received command prior to resuming the existing command; such that the user equipment appears to the UTRAN to be processing commands simultaneously. | 11-04-2010 |
20100216464 | CELL SELECTION IN MOBILE COMMUNICATIONS - 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. | 08-26-2010 |
20100210215 | Method and Apparatus for Reducing Link Interference by a Link Between a User Equipment Component and an Access Network Component - 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 a reconfiguration message to the other component to reconfigure to a common channel state in which the link channel power in the first direction is independent of the link channel in the second direction. | 08-19-2010 |
20100008329 | ACCESS STRATUM MANAGER - A multi-mode mobile communication device may include a processing device, a memory sub-system, a communication sub-system operable to communicate with the plurality of wireless access networks, and a protocol stack stored in the memory sub-system and executed by the processing device. The protocol stack may include a first access stratum, a second access stratum, a non-access stratum and an access stratum manager. The first access stratum may communicate with a first wireless access network via the communication sub-system. The second access stratum may communicate with a second wireless access network via the communication sub-system. The non-access stratum may communicate with a core network. The access stratum manager may interface the non-access stratum with the first and second access strata, and may be operable to activate the first access stratum to establish a communication link with the core network over the first wireless access network. The access stratum manager may be further operable to maintain the communication link between the non-access stratum and the core network while transferring the communication link from the first access stratum to the second access stratum. | 01-14-2010 |
20090098879 | APPARATUS AND METHOD FOR OPERATING A COMMUNICATIONS DEVICE IN A MOBILE COMMUNICATIONS NETWORK - 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. | 04-16-2009 |
20090075690 | APPARATUS AND METHOD FOR MAKING MEASUREMENTS IN MOBILE TELECOMMUNICATIONS SYSTEM USER EQUIPMENT - A method and apparatus for selecting cells in a mobile telecommunications system, the system comprising a network of a plurality of cells of a Universal Mobile Telecommunications Systems (UMTS) and a network of a plurality of cells of a second Radio Access Technology (RAT), the method comprising, at a user equipment device: when in UMTS mode, flagging in a neighbouring cell list stored on the user equipment device information for a cell of a second RAT which is known to be unsuitable for selection. Information from the neighbouring cell list information for the flagged cell may be removed, in particular for a limited period of time. | 03-19-2009 |
20090075658 | WIRELESS TELECOMMUNICATION SYSTEM - A method and apparatus for processing a message in a mobile, telecommunications device. The method comprises: receiving a Cell Update Confirm (CUC) message; determining whether the device has an empty C_RNTI variable; when the device has an empty C_RNTI variable, determining whether the CUC message includes a new C_RNTI; when the CUC message includes a new C_RNTI and the CUC message would cause the device to enter a state which requires the UE to respond to the message before entering the state, carrying out at least one further step prior to entering the state. | 03-19-2009 |
20090054063 | APPARATUS AND METHOD FOR TAKING MEASUREMENTS IN UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEMS USER EQUIPMENT - 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. | 02-26-2009 |