Method and apparatus of iterative channel tracking for MIMO-OFDM system
US9992046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2017 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Jan 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/261
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for channel estimation using iterative channel tracking algorithm, in a communication system combined multiple input multiple output (MIMO) technology with orthogonal frequency division multiplexing (OFDM), are disclose. The initial channel estimation of a data packet uses the first preamble inserted in front of the OFDM blocks. After demodulating subsequent one or more OFDM blocks, iterative channel tracking method is used for channel estimation until the next preamble is received. The iterative channel tracking is based on the received signals and the demodulated results of subsequent one or more OFDM blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.