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).

  • Patent number: 10033512
    Abstract: 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: Grant
    Filed: June 30, 2016
    Date of Patent: July 24, 2018
    Assignee: BlackBerry Limited
    Inventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
  • Patent number: 9622170
    Abstract: 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: Grant
    Filed: November 2, 2012
    Date of Patent: April 11, 2017
    Assignee: BlackBerry Limited
    Inventors: Yajun Zhu, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi
  • Publication number: 20160308659
    Abstract: 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: Application
    Filed: June 30, 2016
    Publication date: October 20, 2016
    Applicant: BlackBerry Limited
    Inventors: Yiping WANG, Zhijun CAI, David Nigel FREEMAN
  • Patent number: 9450695
    Abstract: 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: Grant
    Filed: November 2, 2012
    Date of Patent: September 20, 2016
    Assignee: BlackBerry Limited
    Inventors: Yajun Zhu, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi
  • Patent number: 9439130
    Abstract: 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: Grant
    Filed: January 14, 2016
    Date of Patent: September 6, 2016
    Assignee: TELEFONICA DIGITAL LIMITED
    Inventor: David Nigel Freeman
  • Publication number: 20160212683
    Abstract: 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: Application
    Filed: January 14, 2016
    Publication date: July 21, 2016
    Applicant: TELEFONICA DIGITAL LIMITED
    Inventor: David Nigel FREEMAN
  • Patent number: 9386602
    Abstract: 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: Grant
    Filed: September 20, 2013
    Date of Patent: July 5, 2016
    Assignee: BlackBerry Limited
    Inventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
  • Patent number: 9179445
    Abstract: 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: Grant
    Filed: April 2, 2013
    Date of Patent: November 3, 2015
    Assignee: BlackBerry Limited
    Inventors: Yiping Wang, Andrew Mark Earnshaw, Jun Li, David Nigel Freeman
  • Patent number: 9131513
    Abstract: 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: Grant
    Filed: August 16, 2013
    Date of Patent: September 8, 2015
    Assignee: BlackBerry Limited
    Inventors: Zhijun Cai, Yi Song, Chandra Sekhar Bontu, David Nigel Freeman
  • Publication number: 20150085711
    Abstract: 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: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: BlackBerry Limited
    Inventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
  • Publication number: 20150050940
    Abstract: 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: Application
    Filed: August 16, 2013
    Publication date: February 19, 2015
    Applicant: BLACKBERRY LIMITED
    Inventors: Zhijun Cai, Yi Song, Chandra Sekhar Bontu, David Nigel Freeman
  • Publication number: 20140293883
    Abstract: 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: Application
    Filed: April 2, 2013
    Publication date: October 2, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Yiping Wang, Andrew Mark Earnshaw, Jun Li, David Nigel Freeman
  • Publication number: 20140128078
    Abstract: 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: Application
    Filed: November 2, 2012
    Publication date: May 8, 2014
    Applicant: Research In Motion Limited
    Inventors: Yajun ZHU, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi
  • Publication number: 20140126438
    Abstract: 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: Application
    Filed: November 2, 2012
    Publication date: May 8, 2014
    Applicant: Research In Motion Limited
    Inventors: Yajun Zhu, Zhijun Cai, David Nigel Freeman, Rene Waraputra Purnadi