Patents by Inventor Michael Youngil Ha

Michael Youngil Ha 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).

  • System and method for frequency planning
    Patent number: 7970422
    Abstract: A system and method for frequency planning is provided. In systems with consecutive frequency channels, half-channel frequency reuse can be provided between channels employed by different cells. Specifically, two channels in two proximately located cells can overlap within the frequency spectrum by one-half of the frequency of a channel. Half-channel overlap can increase frequency reuse, and in turn, system capacity.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: June 28, 2011
    Assignee: Nextel Communications Inc.
    Inventors: Michael Youngil Ha, Chris Helzer, Douglas A. Hyslop, Salman Yusuf
  • System and method for frequency planning
    Publication number: 20060052123
    Abstract: A system and method for frequency planning is provided. In systems with consecutive frequency channels, half-channel frequency reuse can be provided between channels employed by different cells. Specifically, two channels in two proximately located cells can overlap within the frequency spectrum by one-half of the frequency of a channel. Half-channel overlap can increase frequency reuse, and in turn, system capacity.
    Type: Application
    Filed: August 10, 2005
    Publication date: March 9, 2006
    Applicant: NEXTEL COMMUNICATIONS, INC.
    Inventors: Michael Youngil Ha, Chris Helzer, Douglas Hyslop, Salman Yusuf