Blackberry Corporation

Research in Motion Corporation

Raghavendra Magadi Rangaiah

Takashi Suzuki

David Philip Hole

Andrew John Farnsworth

Johanna Lisa Dwyer

Johanna Dwyer

Giri Narayana Reddy

Vaibhav Singh

Ozgur Ekici

Anup Vijay

Ajit Singh Boley

Venkateswarlu Katepalli

Farnsworth Andrew John

In accordance with one embodiment, there is provided a method for use by a wireless cellular telecommunications device camped on a first cell. The method comprises, at the device: selecting a parameter applicable to a priority-based re-selection algorithm and also applicable to another cell; measuring an attribute of a signal received from a second cell; and, evaluating the second cell for re-selection according to a ranking algorithm based at least on the selected parameter and the measured attribute. A device and computer readable medium are also provided.

Cell re-selection using a ranking algorithm

A wireless cellular telecommunications device stores a first parameter obtained from system information of a first cell and measures an attribute of a signal received from a candidate cell, determines if the candidate cell is a closed subscriber group cell, and evaluates the candidate cell for re-selection. If the candidate cell is determined to be a closed subscriber group cell, the evaluation of the candidate cell for re-selection is based on at least the measured attribute irrespective of the first stored parameter, that first stored parameter indicating a minimum value for the measured attribute.

Cell re-selection in a cellular telecommunications network

A user equipment and a method performed by the user equipment is provided. The method comprises receiving a network message from a network, inhibiting a sending of a user equipment message to the network and transitioning to a target state. The user equipment is adaptable/adapted and/or configurable/configured to receive a network message from a network, inhibit a sending of a user equipment message to the network and transition to a target state. The network message indicates the target state to which the user equipment is to transition.

System and method of user equipment state transition

A user equipment (UE), comprising at least one component configured to support a handover during decreasing radio conditions, wherein an event is triggered using at least one of a time to trigger for rapid degradation or radio conditions (TTTrd) value and a filter coefficient for rapid degradation of radio conditions (FCrd) value that are different than the corresponding standard values indicated by a network. Also included is a UE, comprising at least one component configured to support a method comprising obtaining cell measurements using network indicated standard parameters and parameters configured for rapid degradation of radio conditions, monitoring radio conditions, and evaluating an event using the parameters configured for rapid degradation of radio conditions if rapid degradation of radio conditions is detected, or using the network indicated standard parameters otherwise.

Generating measurement reports under rapid degradation of radio conditions

Apparatus and a method are described for handling inter-radio access technology measurement reports in a radio telecommunications device, the device being operable with a first cellular radio access technology (e.g. UTRAN, E-UTRAN), GERAN and Generic Access Network, the radio telecommunications device being capable of adopting a cellular preferred mode. The method comprises, in the radio telecommunications device, when the radio telecommunications device is in cellular preferred mode and operating with the first cellular radio access technology and the radio telecommunications device is registered with a Generic Access Network Controller that operates as a GERAN network component, and a quality of a signal from the first cellular radio access technology is below a certain threshold and a quality of a signal from the GAN is above a certain threshold and a request has been received to send an inter-RAT measurement report, generating inter-radio access technology measurements and, when there is at least one GERAN cell that satisfies a triggering condition, transmitting a measurement report in respect of the GERAN cell(s) and a measurement report in respect of the generic access network.

Method for handling inter-radio access technology measurement requests in a mobile telecommunications device

According to an aspect of the present disclosure, there may be provided a method in a wireless cellular telecommunications device camped on a serving cell, the device storing a parameter obtained by decoding system information of a first cell. The method comprises: measuring an attribute of a signal received from a candidate cell; and, evaluating the candidate cell for re-selection based on the measured attribute according to a priority-based re-selection algorithm irrespective of the stored parameter. The parameter indicates a minimum required received signal code power. A device and computer readable medium are also provided.

Apparatus and a method for sending measurement report messages from a wireless telecommunications device to a wireless telecommunications network are disclosed. The method comprises at the wireless telecommunications device: generating a measurement report in respect of a first event; transmitting a first message including the measurement report in respect of the first event to the network; generating a subsequent measurement report for another event; determining whether conditions for the first event are still satisfied and, if so, including in a subsequent message the measurement report for the first event as well as the measurement report for the other event; and transmitting the subsequent message to the network.

Method and apparatus for sending measurement report messages from a wireless telecommunications device to a wireless telecommunications network

A method and apparatus for cell reselection for a wireless communication device are disclosed.

Method and apparatus for cell reselection for a wireless communication device

According to an aspect of the present invention, there is provided a method in a wireless cellular telecommunications device camped on a serving cell, the device storing a parameter obtained from a first cell. The method comprising: measuring an attribute of a signal received from a candidate cell; and, evaluating the candidate cell for re-selection. If a carrier frequency of the candidate cell matches a carrier frequency of the first cell, the evaluation of the candidate cell for re-selection is based on at least the measured attribute and the stored parameter, else the evaluation of the candidate cell for re-selection is performed without using the stored parameter. A device and computer readable medium are also provided.

Growing community of inventors

West Bromwich, United Kingdom

Raghavendra Magadi Rangaiah