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