Blackberry Corporation

Sukhdev Saini

Andrew John Farnsworth

Gideon Roberts

Gideon Edmund Roberts

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.

Apparatus and method for handling broadcast system information in telecommunications system user equipment

A method and apparatus for searching for and reporting Public Land Mobile Networks 'PLMNs' in a mobile telecommunications system, the method comprising, at a mobile device: initiating a scan to find Public Land Mobile Networks; when a cell of a PLMN is detected on a frequency, then reading system information to determine one or more PLMN identities of the detected cell; determining whether the detected cell operates in a frequency band supported by the mobile device; when it is determined that the detected cell does not operate in a band supported by the device, omitting adding the associated one or more PLMN identities from a first of PLMNs, and otherwise adding the one or more PLMN identities to the list of PLMNs; and reporting the list of PLMNs.

Searching and reporting public land mobile networks (PLMNs) in a mobile telecommunications system

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.

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Wednesbury, United Kingdom

Sukhdev Saini