Patents by Inventor Hoonghai Zhang

Hoonghai Zhang 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).

  • Distributed inter-cell interference mitigation in OFDMA multi-carrier wireless data networks
    Patent number: 8335534
    Abstract: Systems and methods are disclosed for transmission with a plurality of base stations (BSs) in a wireless cellular data network where one BS communicates with neighboring BSs by determining a binary or discrete new power level on each subchannel to determine a weighted sum modified rates of a BS and in-neighbor BSs; and resolving concurrent power update in each BS in a distributed manner.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: December 18, 2012
    Assignee: NEC Laboratories America, Inc.
    Inventors: Hoonghai Zhang, Sampath Rangarajan, Luca Venturino, Narayan Prasad