Method and module for estimating transmission chanels of a multi-antenna multi-carrier system
US7945005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Dec 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2613
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a module for estimating transmission channels in a multi-antenna system. A matrix A is calculated which is constructed in the form of blocks from training sequences and an appropriate Fourier matrix. For a receive antenna RXj concerned, the method and the module calculate Nt impulse responses in the time domain by multiplying Np pilot symbols extracted from a frequency-domain signal Rj(n) obtained after demodulation of a time-domain signal received by the receive antenna RXj concerned by a product of matrices comprising the pseudo-inverse matrix of the product of the Hermitian matrix of the A matrix with the A matrix enabling decorrelation of modulated carriers adjacent null carriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.