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:
Aug. 24, 2010
Filed:
Nov. 06, 2006
Antoine Clerino, Seysses, FR;
Christian Peyrotte, Toulouse, FR;
Antoine Clerino, Seysses, FR;
Christian Peyrotte, Toulouse, FR;
Alcatel Lucent, Paris, FR;
Abstract
An apparatus (A) is dedicated to generating sequences of signal coding elements within a signal transmission device (TD) of a CDMA network. This apparatus (A) comprises calculation means (CM) tasked with i) constructing a 2×2 intermediary matrix (M) with rank K, where K is a selected odd-numbered integer value greater than or equal to 1, and comprising four matrix elements (X, Y, Z, U) each constructed from another 2×2 intermediary matrix with rank K−1, where X=1, Y=−1, Z=1, and U=1, then ii) converting the 2×2 intermediary matrix (M) with rank K into an N×N final matrix (M') with rank K, where N=2, in which each element associated with one of the N rows and N columns is a value, and iii) delivering N sequences which are orthogonal to one another, each comprising N coding elements respectively constructed from the values of the elements contained within one of the N rows of the final matrix (M′). Each sequence may then be used to spread the signal spectra, said signals being associated with different communication channels, before being modulated and then transmitted.