Patent application number | Description | Published |
20080267309 | Apparatus and Method for Handling Broadcast System Information in Telecommunications System User Equipment - 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. | 10-30-2008 |
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 |
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 |
20110269443 | APPARATUS, AND METHOD, FOR IMPLEMENTING DETECTION OF SYSTEM INFORMATION CHANGES IN UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEMS - 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. | 11-03-2011 |
20120009927 | APPARATUS AND METHOD FOR QUERYING FOR RAT HANDOVER SYSTEM INFORMATION IN MOBILE TELECOMMUNICATIONS SYSTEMS - A mobile telecommunications system comprises a network of a plurality of cells and at least one user equipment device operable to communicate in the system and to operate in a first RAT and a second RAT. The method comprises, in the user equipment device, determining whether the validity of data stored on the user equipment device will expire within an expiry period, the stored data being for use in handover of operation of the user equipment device from the first RAT to the second RAT. | 01-12-2012 |
Patent application number | Description | Published |
20090280815 | Method and System for Transitioning Between Radio Access Technologies (RATS) - A method in a wireless communications device having a first protocol stack for use with a first radio access technology (RAT) and a second protocol stack for use with a second RAT, the first protocol stack comprising a reordering component associated with a first layer of the first protocol stack and arranged to implement a data reordering queue, the method for transitioning from the first RAT to the second RAT, the method comprising: determining that the device should transition from the first RAT to the second RAT; in response to determining that the device should transition, determining that data is present in a reordering queue implemented by the reordering component; sending the data present in the reordering queue to a second layer which is higher than the first layer; and attempting transitioning from the first RAT to the second RAT. | 11-12-2009 |
20090286539 | Apparatus and Method for Cell Reselection in a Radio Access Network - 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. | 11-19-2009 |
20090286542 | Method and Apparatus for Transitioning From a First RAT to a Second RAT - A method, in a wireless communications device having a first protocol stack for use with a first radio access technology and a second protocol stack for use with a second radio access technology, the method for transitioning from a first radio access technology to a second radio access technology, the method comprising: maintaining a list of available communication cells associated with the second radio access technology, and transferring information associated with more than one available communication cell associated with the second radio access technology from the first protocol stack to the second protocol stack. | 11-19-2009 |
20090298459 | Apparatus and Method for Handling Out of Service Emergency Calls in Wireless Telecommunications System User Equipment - Apparatus and a method for handling out of service emergency calls in a wireless telecommunications system user equipment (UE) are disclosed. When an emergency call is initiated on a UE when the UE is in an out of service area, the UE in response to the initiating of an emergency call initiates a search for an acceptable cell rather than continuing with a search for suitable cells. The UE checks whether an acceptable cell is found. If an acceptable cell is found then the emergency call is connected. | 12-03-2009 |
Patent application number | Description | Published |
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 |
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 |
20120015648 | 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. | 01-19-2012 |
20130065591 | 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. | 03-14-2013 |