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:
Oct. 15, 2012
Filed:
Jun. 21, 2011
Ari Hottinen, Espoo, FI;
Olav Tirkkonen, Helsinki, FI;
Ari Hottinen, Espoo, FI;
Olav Tirkkonen, Helsinki, FI;
Amosmet Investments LLC, Dover, DE (US);
Abstract
The invention relates to a method and an arrangement for transmitting a digital signal consisting of symbols, which arrangement comprises a coder () for coding complex symbols to channel symbols in blocks having the length of a given K, means () for transmitting the channel symbols via several different channels and two or more antennas (to). The coder () is arranged to code the symbols using a code matrix, which can be expressed as a sum of 2K elements, in which each element is a product of a symbol or symbol complex conjugate to be transmitted and a N×N representation matrix of a complexified anti-commutator algebra, extended by a unit element, and in which each matrix is used at most once in the formation of the code matrix. A code matrix is also provided which is formed by matrices of a portion of the symbols placed on the diagonal of the code matrix and by matrices of a second portion of symbols along the anti-diagonal of the code matrix.