Patents by Inventor Yoshikazu Kakwa

Yoshikazu Kakwa 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 for measuring channel quality and base station in mobile communications system
    Patent number: 8259657
    Abstract: A channel quality measurement method that accomplishes efficient channel quality measurement for each mobile station is presented. In a frequency band including a plurality of frequency blocks, a base station measures the channel quality of each of a plurality of mobile stations. With respect to each mobile station, when a pilot resource for demodulation is not allocated in at least one of the frequency blocks, the base station allocates a specific pilot resource for channel quality measurement in that frequency block. The channel quality of each mobile station in the plurality of frequency blocks is measured by using one or both of the pilot resource for demodulation and the dedicated pilot resource for channel quality measurement.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: September 4, 2012
    Assignee: NEC Corporation
    Inventors: Takamichi Inoue, Yoshikazu Kakwa