Patent Number:
7,822,103
Title:
Fast joint detection base station
Abstract:
A code division multiple access base station receives K data signals over a shared spectrum. The base station receives and samples a combined signal having the K transmitted data signals. A combined channel response matrix is produced. A block column of a cross correlation matrix is determined using the combined channel response matrix. Each block entry of the block column is a K by K matrix. A fourier transform of a complex conjugate transpose of the combined channel response matrix multiplied to the combined signal samples is taken. An inverse of a fourier transform of each block entry is multiplied to a result of the fourier transform to produce a fourier transform of the data vector. An inverse fourier transform of the data vector fourier transform is taken to produce data of the K signals.
Inventors:
De; Parthapratim (Camp Bell, CA), Pan; Kyle Jung-Lin (Smithtown, NY), Zeira; Ariela (Huntington, NY)
Assignee:
InterDigital Technology Corporation
International Classification:
H04B 1/69 (20060101); H04B 7/216 (20060101)
Expiration Date:
2018-10-26 0:00:00