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:
Jul. 07, 2015
Filed:
Jun. 18, 2004
Olav Tirkkonen, Helsinki, FI;
Mikko Kokkonen, Helsinki, FI;
Olav Tirkkonen, Helsinki, FI;
Mikko Kokkonen, Helsinki, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
A method for equalizing a frequency-selective transmission channel () with N inputs and Moutputs is shown, the transmission channel representable in a transformation domain based on N orthogonal sub-carriers, and wherein the transmission characteristics from the Minputs to the Moutputs for each of the N respective orthogonal sub-carriers are represented by N respective sub-carrier channels (), the method using () equalization filters () for at least two of the N sub-carrier channels, wherein at least one set () of sub-carrier channels comprising at least two of the N sub-carrier channels is formed (), wherein for at least one sub-carrier channel, a first-type equalization filter is used that is determined () based on a representation of at least one sub-carrier channel, and wherein for at least one sub-carrier channel, a second-type equalization filter is used that is derived () at least partially from the first-type equalization filter.