Channel estimation apparatus and method for the same
US8189721B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Jan 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2647
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A channel estimation apparatus and a method for the same are provided. The channel estimation apparatus includes a preamble buffer unit, a gain adjusting unit, a demodulation unit, and an estimation unit. The preamble buffer unit receives and temporarily stores a plurality of symbols in preamble signal. The symbols correspond to a plurality of gain control values. The gain adjusting unit adjusts the symbols to a plurality of gain normalized symbols according to the gain control values. The demodulation unit receives the gain normalized symbols and demodulates the same to obtain a frequency domain demodulation signal. The estimation unit receives the frequency domain demodulation signal and performs a channel estimation about the frequency domain demodulation signal and a frequency domain reference value of a standard preamble signal, so as to obtain a channel frequency response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.