Patents by Inventor Changoi C. Koo

Changoi C. Koo 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).

  • Publication number: 20130028201
    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 reporting uplink buffer status information to the radio network and configuring LTE and non-LTE components to provide an in-device coexistence operation mode where non-LTE components use radio resources during the non-LTE on-intervals and during off-intervals inserted into the LTE on-intervals in response to predetermined trigger events.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Changoi C. Koo, Jun Li, Zhijun S. Cai
  • Publication number: 20130029704
    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 allocating a non-interfering downlink signaling channel for downlink reception of interference avoidance instructions at the UE device. In operation, a user equipment device detects IDC interference and sends an IDC indication message to the radio network to get an appropriate solution, but instead of waiting at the current frequency to receive the IDC response from the radio network, the user equipment device moves to a non-interfering downlink signaling channel for downlink reception of interference avoidance instructions.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Changoi C. Koo, Zhijun S. Cai, Youn Hyoung Heo