MMSE-DFE equalization with antenna diversity for mobile DTV
US8045610B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Mar 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03159
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A decision feedback equalizer has a feedback filter and K feed forward filter branches. Each of the K feed forward filter branches receives an input signal from a corresponding one of a plurality of channels associated with a corresponding one of a plurality of antennas, where K>1. Each of the K feed forward filter branches provides an output. An instantaneous SNR level γk is determined for each of the K feed forward filter branches. The instantaneous SNR level γk for each of the K feed forward filter branches is compared to an upper threshold TH and to a lower threshold TL. The outputs from the K feed forward filter branches are selectively added dependent upon the comparing of the instantaneous SNR level γk for each of the K feed forward filter branches to the upper threshold TH and to the lower threshold TL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.