Patent Number: 7,133,412

Title: Single user detection user equipment

Abstract: A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. A subblock of the cross correlation matrix is selected. A Cholesky factor for the subblock is determined. The Cholesky factor is extended. The spread data vector is determined using the extended Cholesky factor, a version of the channel response and the samples. Data of the data signals is estimated using the spread data vector.

Inventors: De; Parthapratim (Farmingdale, NY), Zeira; Ariela (Huntington, NY), Pan; Jung-Lin (Selden, NY), Misra; Raj Mani (Brooklyn, NY)

Assignee: InterDigital Technology Corp.

International Classification: H04B 7/216 (20060101)

Expiration Date: 2019-11-07 0:00:00