Channel estimation for OFDM-based wireless communication system using sparsely spaced pilot subcarriers
US8130848B2 · kind B2 · utility
3Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2008 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Dec 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0232
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device and method for performing a channel estimation for an OFDM-based wireless communication system using sparsely spaced pilot subcarriers estimates missing pilot subcarriers in an interpolation window using pilot subcarriers that are outside of the interpolation window to produce estimated pilot subcarriers for the interpolation window. The pilot subcarriers in the interpolation window and the estimated pilot subcarrier are used to compute pilot channel estimates for the interpolation window, which are then used to derive data channel estimates for the interpolation window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.