Patent application number | Description | Published |
20080214212 | Methods of Setting Up a Call With, and Determining the Direction of, a Mobile Device - A method of setting up a call with a mobile communication device, the method comprising transmitting a call request to the device over a wireless link, wherein the call request is adapted to cause the device to transmit a locator signal whilst blocking a connection management process which would otherwise cause the mobile communication device to provide a visual or audible alert. The locator signal can then be used by a direction finder to locate the direction of the device. Channel information is transmitted to the direction finder, the channel information identifying a channel of the locator signal. | 09-04-2008 |
20080220749 | Acquiring Identity Parameters by Emulating Base Stations - A method of acquiring the identity parameters of two or more mobile devices ( | 09-11-2008 |
20090023424 | ACQUIRING IDENTITY PARAMETER - A method of acquiring an identity parameter of a device registered with a network. The device is configured to respond to a set of integrity protected requests from the network only after the device has authenticated the network. The device is also configured to respond to a non-integrity protected identity request from the network without requiring authentication of the network. The method comprises transmitting a false cell broadcast which is not under the control of the network, the false cell broadcast including the non-integrity protected identity request; and receiving the identity parameter from the device in response to the identity request. | 01-22-2009 |
20090036143 | METHODS OF MAINTAINING CONNECTION WITH, AND DETERMINING THE DIRECTION OF, A MOBILE DEVICE - A method of determining the direction of a mobile communication device, the method comprising receiving an encoded locator signal from the device over a wireless link; decoding the locator signal to generate a decoded output; and measuring the direction of arrival of the locator signal by analyzing the decoded output. | 02-05-2009 |
20100035590 | METHOD OF OBTAINING DIRECTORY NUMBER - A method of obtaining the directory number (such as the MSISDN) of a mobile device registered with a mobile communication network. The method comprises: causing the mobile device to disconnect from the network and connect with a separately introduced transmitter which is not under the control of the network; sending a request to the mobile device from the separately introduced transmitter, the request including an identification of a convenient device, and causing the mobile device to transmit a response to the network, which in turn causes the network to retrieve the directory number of the mobile device from a database and transmit it to the convenient device; and receiving the directory number from the network at the convenient device. | 02-11-2010 |
20100113025 | METHOD AND APPARATUS FOR FORCING INTER-RAT HANDOVER - The present invention relates to a method and apparatus for forcing a mobile device to handover from a first cellular network radio access technology (RAT) to a second radio access technology (RAT) different from the first cellular network radio access technology. The method comprises: establishing a connection with the mobile device using the first cellular network radio access technology; sending a handover command to the device using the first cellular network radio access technology, the handover command including details of radio resources of the second cellular network radio access technology; and establishing a connection with the mobile device using the radio resources of the second cellular network radio access technology which were specified in the handover command. These steps are each performed by a separately introduced base station which is not under the control of a cellular network. | 05-06-2010 |