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:
May. 09, 2006
Filed:
Jul. 30, 2001
Roger David Benning, Long Valley, NJ (US);
R. Michael Buehrer, Morristown, NJ (US);
Mark H Kraml, Flanders, NJ (US);
Paul Anthony Polakos, Marlboro, NJ (US);
Roger David Benning, Long Valley, NJ (US);
R. Michael Buehrer, Morristown, NJ (US);
Mark H Kraml, Flanders, NJ (US);
Paul Anthony Polakos, Marlboro, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Described herein is a method and apparatus for transmission that provides the performance of space time spreading (STS) or orthogonal transmit diversity (OTD) and the backwards compatibility of phase sweep transmit diversity (PSTD) without significantly degrading performance in additive white guassan noise (AWGN) conditions using a transmission architecture that incorporates STS/OTD and a form of phase sweep transmit diversity (PSTD) referred to herein as biased PSTD, which involves transmitting a signal and a frequency swept version of the same signal over diversity antennas at different power levels to reduce the depths of nulls normally seen in AWGN conditions when regular PSTD is utilized.