Patents by Inventor Jun J. Li

Jun J. Li 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).

  • Method and apparatus for avoiding in-device coexistence interference with keeping time update for handover
    Patent number: 8831611
    Abstract: A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing coexistence mode handover procedures which establish an updateable “keeping time” parameter to prevent premature switch back or handover to an interfering network node after handoff.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 9, 2014
    Assignee: BlackBerry Limited
    Inventors: Changhoi Koo, Jun J. Li, Zhijun S. Cai
  • Method and apparatus for avoiding in-device coexistence interference with preferred frequency notification
    Patent number: 8805303
    Abstract: A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing preferred frequency solutions for the in-device coexistence system.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: August 12, 2014
    Assignee: BlackBerry Limited
    Inventors: Changhoi Koo, Jun J. Li, Youn Hyoung Heo
  • Method and Apparatus for Avoiding In-Device Coexistence Interference with Preferred Frequency Notification
    Publication number: 20120213162
    Abstract: A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing preferred frequency solutions for the in-device coexistence system.
    Type: Application
    Filed: March 23, 2011
    Publication date: August 23, 2012
    Inventors: Changhoi Koo, Jun J. Li, Youn Hyoung Heo
  • Method and Apparatus for Avoiding In-Device Coexistence Interference with Keeping Time Update for Handover
    Publication number: 20120214489
    Abstract: A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing coexistence mode handover procedures which establish an updateable “keeping time” parameter to prevent premature switch back or handover to an interfering network node after handoff.
    Type: Application
    Filed: March 23, 2011
    Publication date: August 23, 2012
    Inventors: CHANGHOI KOO, JUN J. LI, ZHIJUN S. CAI