Patent · US Active

Link profiling for asymmetric delay compensation

US12308949B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Net Insight AB · SE

Inventors

Michael ANDERSSON · Österskär, SE
Magnus Danielsson · Stocksund, SE

Key dates

Filing date	Jun 18, 2021
Grant date	May 20, 2025
Priority date	—
Expiry date	May 29, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04J3/0667
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

There is provided a GNSS independent method for asymmetry delay error compensation to minimize a time difference bias when using two-way time transfer in a communication network. The method includes establishing a bidirectional virtual path comprising at least one link path, LP1-LP4, over the network for communication between a first node A and a second node B by sending a bidirectional data stream over the virtual path and utilizing previously stored link profiles associated with a delay correction factor or a calibrated virtual path or a stable local clock in holdover mode to provide new delay correction factor to minimize a time difference bias in the local time in the second node.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.