Patents by Inventor Christopher Melus

Christopher Melus 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).

  • Utilization of MIMO reference signal resource blocks
    Patent number: 9444570
    Abstract: Reference signals (a.k.a., pilot signals) are broadcast to aid in at least channel estimation, cell selection, and handover. When a multi-antenna mode (i.e., MIMO) is used data signals on one antenna should not interfere with reference signals on another antenna. Reference signal resource elements (a.k.a., slots) being broadcast from one antenna are multiplied by a first Walsh code and the data (or reference) signal resource elements being broadcast from another antenna are multiplied by second Walsh code in the same family. Multiplication by Walsh codes reduces or eliminates the correlation between the data resource elements on a first antenna and the reference signal resource elements simultaneously broadcast on a second antenna.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: September 13, 2016
    Assignee: Sprint Spectrum L.P.
    Inventors: Nagi Mansour, Emerino J. Marchetti, Christopher Melus