Patents by Inventor David Nigel Freeman
David Nigel Freeman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10033512Abstract: A method at a user equipment for hybrid automatic repeat request (HARQ) operation, the user equipment operating on a primary carrier having a first duplex mode and on at least one secondary carrier having a second duplex mode, the method using HARQ timing of the first duplex mode if the timing of the first duplex mode promotes acknowledgement opportunities over using HARQ timing of the second duplex mode; and using HARQ timing of the second duplex mode if the timing of the second duplex mode promotes acknowledgement opportunities over using HARQ timing of the first duplex mode.Type: GrantFiled: June 30, 2016Date of Patent: July 24, 2018Assignee: BlackBerry LimitedInventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
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Patent number: 9622170Abstract: Systems, methods, and apparatuses for energy saving in heterogeneous wireless communication networks are provided. The small cell (e.g., pico cell, relay cell, femto cell) may adjust its transmit power based on the requirement of user equipments (UEs) in the cell's coverage. The small cell may detect a UE entering its coverage with or without assistance from the macro cell. An appropriate small cell may be selected to serve the UE based on its traffic load when the UE is located in the coverage of multiple small cells. The small cell may also transmit auxiliary synchronization signals to reduce the association time for the UE.Type: GrantFiled: November 2, 2012Date of Patent: April 11, 2017Assignee: BlackBerry LimitedInventors: Yajun Zhu, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi
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Publication number: 20160308659Abstract: A method at a user equipment for hybrid automatic repeat request (HARQ) operation, the user equipment operating on a primary carrier having a first duplex mode and on at least one secondary carrier having a second duplex mode, the method using HARQ timing of the first duplex mode if the timing of the first duplex mode promotes acknowledgement opportunities over using HARQ timing of the second duplex mode; and using HARQ timing of the second duplex mode if the timing of the second duplex mode promotes acknowledgement opportunities over using HARQ timing of the first duplex mode.Type: ApplicationFiled: June 30, 2016Publication date: October 20, 2016Applicant: BlackBerry LimitedInventors: Yiping WANG, Zhijun CAI, David Nigel FREEMAN
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Patent number: 9450695Abstract: Systems, methods, and apparatuses for energy saving in heterogeneous wireless communication networks are provided. The small cell (e.g., pico cell, relay cell, femto cell) may adjust its transmit power based on the requirement of user equipments (UEs) in the cell's coverage. The small cell may detect a UE entering its coverage with or without assistance from the macro cell. An appropriate small cell may be selected to serve the UE based on its traffic load when the UE is located in the coverage of multiple small cells. The small cell may also transmit auxiliary synchronization signals to reduce the association time for the UE.Type: GrantFiled: November 2, 2012Date of Patent: September 20, 2016Assignee: BlackBerry LimitedInventors: Yajun Zhu, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi
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Patent number: 9439130Abstract: A method and computer programs for controlling relay in a group communication, including transmitting, by an originating mobile computing device (OUE) to a set of recipient mobile computing devices (RUE1, . . .Type: GrantFiled: January 14, 2016Date of Patent: September 6, 2016Assignee: TELEFONICA DIGITAL LIMITEDInventor: David Nigel Freeman
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Publication number: 20160212683Abstract: A method and computer programs for controlling relay in a group communication, including transmitting, by an originating mobile computing device (OUE) to a set of recipient mobile computing devices (RUE1, . . .Type: ApplicationFiled: January 14, 2016Publication date: July 21, 2016Applicant: TELEFONICA DIGITAL LIMITEDInventor: David Nigel FREEMAN
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Patent number: 9386602Abstract: A method at a user equipment for hybrid automatic repeat request (HARQ) operation, the user equipment operating on a primary carrier having a first duplex mode and on at least one secondary carrier having a second duplex mode, the method using HARQ timing of the first duplex mode if the timing of the first duplex mode promotes acknowledgement opportunities over using HARQ timing of the second duplex mode; and using HARQ timing of the second duplex mode if the timing of the second duplex mode promotes acknowledgement opportunities over using HARQ timing of the first duplex mode.Type: GrantFiled: September 20, 2013Date of Patent: July 5, 2016Assignee: BlackBerry LimitedInventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
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Patent number: 9179445Abstract: Data is communicated between a network node and a user equipment in a first frame according to a first uplink-downlink configuration. In response to a configuration change that causes a second frame following the first frame to be according to a second, different uplink-downlink configuration, an acknowledgement indication for the data is sent in the second frame.Type: GrantFiled: April 2, 2013Date of Patent: November 3, 2015Assignee: BlackBerry LimitedInventors: Yiping Wang, Andrew Mark Earnshaw, Jun Li, David Nigel Freeman
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Patent number: 9131513Abstract: A controller receives information relating to at least one of multiple small cells. Responsive to the received information, the controller coordinates allocation of resources for use by the small cells in communicating data with respective user equipments (UEs), where the coordinating of the allocation of resources reduces interference among the small cells.Type: GrantFiled: August 16, 2013Date of Patent: September 8, 2015Assignee: BlackBerry LimitedInventors: Zhijun Cai, Yi Song, Chandra Sekhar Bontu, David Nigel Freeman
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Publication number: 20150085711Abstract: A method at a user equipment for hybrid automatic repeat request (HARQ) operation, the user equipment operating on a primary carrier having a first duplex mode and on at least one secondary carrier having a second duplex mode, the method using HARQ timing of the first duplex mode if the timing of the first duplex mode promotes acknowledgement opportunities over using HARQ timing of the second duplex mode; and using HARQ timing of the second duplex mode if the timing of the second duplex mode promotes acknowledgement opportunities over using HARQ timing of the first duplex mode.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Applicant: BlackBerry LimitedInventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
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Publication number: 20150050940Abstract: A controller receives information relating to at least one of multiple small cells. Responsive to the received information, the controller coordinates allocation of resources for use by the small cells in communicating data with respective user equipments (UEs), where the coordinating of the allocation of resources reduces interference among the small cells.Type: ApplicationFiled: August 16, 2013Publication date: February 19, 2015Applicant: BLACKBERRY LIMITEDInventors: Zhijun Cai, Yi Song, Chandra Sekhar Bontu, David Nigel Freeman
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Publication number: 20140293883Abstract: Data is communicated between a network node and a user equipment in a first frame according to a first uplink-downlink configuration. In response to a configuration change that causes a second frame following the first frame to be according to a second, different uplink-downlink configuration, an acknowledgement indication for the data is sent in the second frame.Type: ApplicationFiled: April 2, 2013Publication date: October 2, 2014Applicant: RESEARCH IN MOTION LIMITEDInventors: Yiping Wang, Andrew Mark Earnshaw, Jun Li, David Nigel Freeman
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Publication number: 20140126438Abstract: Systems, methods, and apparatuses for energy saving in heterogeneous wireless communication networks are provided. The small cell (e.g., pico cell, relay cell, femto cell) may adjust its transmit power based on the requirement of user equipments (UEs) in the cell's coverage. The small cell may detect a UE entering its coverage with or without assistance from the macro cell. An appropriate small cell may be selected to serve the UE based on its traffic load when the UE is located in the coverage of multiple small cells. The small cell may also transmit auxiliary synchronization signals to reduce the association time for the UE.Type: ApplicationFiled: November 2, 2012Publication date: May 8, 2014Applicant: Research In Motion LimitedInventors: Yajun Zhu, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi
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Publication number: 20140128078Abstract: Systems, methods, and apparatuses for energy saving in heterogeneous wireless communication networks are provided. The small cell (e.g., pico cell, relay cell, femto cell) may adjust its transmit power based on the requirement of user equipments (UEs) in the cell's coverage. The small cell may detect a UE entering its coverage with or without assistance from the macro cell. An appropriate small cell may be selected to serve the UE based on its traffic load when the UE is located in the coverage of multiple small cells. The small cell may also transmit auxiliary synchronization signals to reduce the association time for the UE.Type: ApplicationFiled: November 2, 2012Publication date: May 8, 2014Applicant: Research In Motion LimitedInventors: Yajun ZHU, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi