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:
Sep. 19, 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 Corporation, 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 as a channel response matrix at the multiple of the chip rate. A padded version of a spread data vector of a size corresponding to the multiple chip rate using a column of the channel response matrix, the estimated channel response matrix, the samples and a fourier transform. The spread data vector is estimated by eliminating elements of the padded version so that the estimated spread data vector is of a size corresponding to the chip rate.