Method and system of frequency correction in LPWAN networks
US10326556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2018 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Dec 14, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is discloses a method of frequency correction during data transmission in a low-power wide-area network (LPWAN). The method is executable by a computing device coupled to the LPWAN. The method comprises: determining an actual frequency of the received message as a mid-point of a given spectrum section, based on the given spectrum section meeting a condition of: the message was successfully received in the given spectrum section, the signal quality metric has a maximum value in the given spectrum section in comparison with all other spectrum sections where that message was also received; calculating an expected frequency of the radio signal based on data contained in the message; determining a received radio signal frequency error as a difference between the actual frequency and the expected frequency of the signal; generating a message send frequency based on the received radio signal frequency error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.