Systems and methods for frequency domain realization of non-integer fractionally spaced time domain equalization
US8767812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | May 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03681
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various systems and methods are described for performing fractionally spaced time domain equalization (TEQ). One embodiment is a method implemented in a communication system for training a fractionally spaced time domain equalizer (TEQ). The method comprises performing an initialization phase, averaging a received signal in the system to reduce effects of noise in a channel, determining a channel estimate, and aligning an ideal reference signal with the received signal. The method further comprises updating a target response filter according to a non-integer multiple of a base sampling rate, determining an adaptation error based on useful information both inside and outside a Nyquist band of the TEQ, and updating the TEQ according to the adaptation error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.