Patents Assigned to REDDOT WIRELESS, INC.
  • Equalization of OFDM Signals Based on Time and Then Frequency Interpolation
    Publication number: 20100027717
    Abstract: Two dimensional interpolation techniques are used to compensate for time-varying channel gain H in an OFDM system. The channel gain can be reasonably estimated at various times and at various frequencies due, for example, to the use of pilot tones. These channel estimates are used to estimate the channel gain at other times and/or frequencies by two-dimensional interpolation, interpolating first with respect to time (e.g., with respect to a symbol index s) and then with respect to frequency (e.g., with respect to a sub-carrier index c).
    Type: Application
    Filed: July 31, 2007
    Publication date: February 4, 2010
    Applicant: REDDOT WIRELESS, INC.
    Inventors: Lekun Lin, Sheng Lin, Kai Xie