Blackberry Corporation

Göran Hageltorn

Lizhong Zhu

Jean-Philippe Paul Cormier

James Randolph Winter Lepp

Hao Xue

Cristian Lambiri

Mohammed Nawaf Smadi

Changhoi Koo

Jun Xu

Daniel Fischer

Libo Zhu

Ghada Badawy

Qingmai Zhou

Yan Wu

Zongyou Zhang

Michael Hubo-Kleiss

Mohammed Mahdi Hasan

Khaled Lakhdhar

A method of selecting a cellular network entails determining a current location of a mobile device by obtaining location data from an application on the mobile device, prioritizing cellular network frequency bands based on the current location to define a band priority, and selecting the cellular network based on the band priority. This method expedites selection of the cellular network when a mobile device is powered on, when its cellular radiofrequency transceiver is activated or when returning from an out-of-coverage area.

Application assisted band scanning method to reduce network acquisition time

A method and device are disclosed for transmission control based on conditions at a receiver. A condition for a received channel of a first wireless network when one or more transmitters for a second or additional wireless networks are transmitting is determined. A condition for the received channel when the transmitters of the second or additional wireless networks are not transmitting also is determined and the two conditions are compared. Depending on the comparison, transmission characteristics for the second wireless network may be modified to mitigate desensitization of the receiver due to the coexistence of transceivers for supporting multiple types of communication subsystems.

Method and device for wireless network coexistence

A method of selecting a cellular network entails detecting a Wi-Fi signal, obtaining a country code from the Wi-Fi signal, prioritizing cellular network frequency bands based on the country code to define a band priority, and selecting a cellular network based on the band priority. The country code may be an IEEE 802.11d Country Code Information Element.

Utilizing Wi-Fi country code to assist cellular network selection

A method is provided for reducing radio frequency interference between a first device and a second device co-located on a UE. The method comprises transmitting, by the UE, to a network element, responsive to the UE detecting IDC interference between the first device and the second device, an output power level of the first device, an amount of de-sense experienced by the second device, and information regarding a plurality of RBs on which the UE requests to perform an uplink transmission.

Resource block indication and allocation for in-device coexistence interference avoidance

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Ottawa, Canada

Göran Hageltorn