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:
Mar. 23, 2010
Filed:
Jul. 21, 2004
Dumitru Mihai Ionescu, Dallas, TX (US);
John Terry, Garland, TX (US);
Victor Stolpman, Irving, TX (US);
Olav Tirkkonen, Helsinki, FI;
Pirjo Pasanen, Vantaa, FI;
Dumitru Mihai Ionescu, Dallas, TX (US);
John Terry, Garland, TX (US);
Victor Stolpman, Irving, TX (US);
Olav Tirkkonen, Helsinki, FI;
Pirjo Pasanen, Vantaa, FI;
Nokia Corporation, Espoo, FI;
Abstract
In a MIMO delay spread (OFDM) system or a MIMO single carrier (non-OFDM) system wherein a transmitter transmits signals to a receiver through multipath fading channels, an equivalent frequency-domain MIMO multipath channel matrix is used to estimate the maximum mutual information regarding the relationship between transmitted signals and received signals. It is possible to compute the upper bound of the maximum mutual information at least based on the total energy of all resolvable paths in the fading channels. The upper bound or the changes in the upper bound can be used to adjust the transmission parameters used in data transmission. The transmission parameters include the modulation order in the modulation process, the code rate and the puncturing rate.