Method and device for multi-user frequency-domain channel estimation based on gradient optimization techniques
US6647078B1 · kind B1 · utility
76Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/025
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention is a method of estimating the time and frequency response of at least one desired signal received by at least one antenna, based on Gradient Optimization techniques. Through the use of gradient optimization techniques and efficient DFT processing, the invention provides frequency response estimates that require fewer computations than prior art decision-directed channel estimation devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.