Apparatus and method for estimating a channel
US7529310B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2004 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Oct 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2647
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for estimating a channel from a transmitting point to a receiving point in an environment, in which at least two transmitting points spaced apart from each other are present, the transmitting point having associated therewith a pilot sequence, wherein the pilot sequences are different from each other, having a provider for providing an input signal, the input signal including a superposition of signals from the transmitting points, a multiplier for providing a number of copies of the input signal, the number of copies being equal to the number of transmitting points, for each copy of the input signal, a transformer for transforming the copy or a signal derived from the copy to obtain a transformed signal, the transformer being operative to apply a transform algorithm which is based on a Fourier transform, and for each transformed signal, an extractor extracting a portion of the transformed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.