Asymmetrical hail timing
US10638419B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Dec 10, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes transmitting first hail messages from a first device at a first hailing rate, wherein a first time between beginnings of each consecutive first hail message is a first period, each first hail message transmitted for a first length of time, and a first gap extends between an end of each first hail message and a start of a next first hail message; listening at the first device for a second hail message repeatedly transmitted at a second hailing rate, wherein a second time between beginnings of each consecutive second hail message is a second period, each second hail message transmitted for a second length of time, and a second gap extends between an end of each second hail message and a start of a next second hail message; and performing, at the first device, a channel activity detection of a preamble in the second hail message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.