The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2006
Filed:
Feb. 21, 2002
Parthapratim DE, Farmingdale, NY (US);
Ariela Zeira, Huntington, NY (US);
Jung-lin Pan, Selden, NY (US);
Raj Mani Misra, Brooklyn, NY (US);
Parthapratim De, Farmingdale, NY (US);
Ariela Zeira, Huntington, NY (US);
Jung-Lin Pan, Selden, NY (US);
Raj Mani Misra, Brooklyn, NY (US);
InterDigital Technology Corp., Wilmington, DE (US);
Abstract
A code division multiple access base station 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.