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:
Apr. 20, 2004
Filed:
Jun. 09, 1999
Applicant:
Inventors:
Leon Nieczyporowicz, West Jordan, UT (US);
Thomas Giallorenzi, Herriman, UT (US);
Steven B Perkins, Sandy, UT (US);
Assignee:
L-3 Communications Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/216 ; H04J 1/100 ;
U.S. Cl.
CPC ...
H04B 7/216 ; H04J 1/100 ;
Abstract
A method for improving the spectral properties of a PN codeset for use in channels of a synchronous CDMA telecommunications system. The method includes steps of (a) providing a PN codeset matrix; and (b) reordering the columns of the PN codeset matrix in accordance with a reordering code. The method may further include the step of inverting at least one codeword of the reordered PN codeset in accordance with an inversion pattern, and may further include the step of selecting PN codes to optimize a subset of channels to operate in an asynchronous manner.