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:
Nov. 30, 2010
Filed:
Nov. 22, 2000
Rui R. Wang, Ottawa, CA;
Chao Wang, Legal Representative, Ottawa, CA;
Ming Jia, Ottawa, CA;
Yuri S. Shinakov, Moscow, RU;
Alexandre M. Chloma, Moskovskaja Oblast, RU;
Mikhail G. Bakouline, Moskovskaja Oblast, RU;
Vitali B. Kreindeline, Moscow, RU;
Rui R. Wang, Ottawa, CA;
Chao Wang, legal representative, Ottawa, CA;
Ming Jia, Ottawa, CA;
Yuri S. Shinakov, Moscow, RU;
Alexandre M. Chloma, Moskovskaja Oblast, RU;
Mikhail G. Bakouline, Moskovskaja Oblast, RU;
Vitali B. Kreindeline, Moscow, RU;
Nortel Networks Limited, St. Laurent, Quebec, CA;
Abstract
Space-time diversity using a plurality of transmit antennas is provided with a turbo coding arrangement comprising two recursive systematic convolutional coders, to one of which input bits are supplied directly and to the other of which the information bits are supplied after interleaving of bit groups for respective symbol intervals. Symbols produced by the coders and comprising systematic and parity information are supplied to paths to the antennas alternately in successive symbol intervals to provide the space-time diversity. Arrangements are described for 2 and 4 antennas and for various convolutional codes, and an iterative decoder is also described.