Delay measurement in a point to multipoint system
US9246615B2 · kind B2 · utility
23Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2013 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Apr 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0667
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for measuring a propagation delay in a point to multipoint network. The system includes a central timing module which provides a timing signal to a plurality of line cards. Each of the line cards includes a local clock that is frequency locked to a 1588 clock and is configured to generate a return timing signal to the central timing module after a predetermined number of clock cycles. The central timing module measures the propagation delay based on the clock cycles of the local clock counted before the return signal is generated and the period of the local clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.