Line synchronization method in OSD system, system, and vectoring control entity
US10615845B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Sep 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6478
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A line synchronization method in an overlapped spectrum duplex (OSD) system having K pairs of communications lines. Each pair of communications lines includes an uplink and a downlink. The method includes synchronizing downstream synchronization symbols of downlinks in the pairs of communications lines, and separately synchronizing an upstream synchronization symbol of an uplink of each pair of communications lines with a downstream synchronization symbol of a downlink of each pair of communications lines. The method may be applied to crosstalk channel estimation to distinguish near-end crosstalk (NEXT) and far-end crosstalk (FEXT) crosstalk channels when upstream and downstream spectrums are overlapped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.