Patent · US Active

Method and system of wireless TDMA scheduling for industrial machine-to-machine communication, including propagation-delay-aware scheduling

US11438856B2 · kind B2 · utility

2Cited by

7References

16Claims

0Family size

Assignee

Hitachi Energy Switzerland AG · CH

Inventors

Zhibo Pang · Västerås, SE
Michele Luvisotto · Västerås, SE
Xiaolin Jiang · Stockholm, SE
Roger Jansson · Västerås, SE
Carlo Fischione · Stockholm, SE

Key dates

Filing date	Feb 21, 2020
Grant date	Sep 6, 2022
Priority date	—
Expiry date	Feb 21, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/2643
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Method and system of wireless TDMA scheduling for industrial machine-to-machine communication, including propagation-delay-aware scheduling. A method of scheduling in a TDMA based communication system between a first node and a plurality of second nodes by means of a respective communication link. The method may comprise obtaining a propagation time for each communication link; and determining the largest difference in propagation times of two communication links. The method may further include selecting a first mode of scheduling if the largest difference is smaller than a threshold, and selecting a second mode of scheduling if the largest difference is larger than the threshold. The first mode includes selecting a guard time to be applied in each of the time slots, which guard time is based on the largest difference. The second mode is propagation-delay-aware and includes scheduling the transmission from each second node on the basis of the respective propagation time.

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