Wireless communication links between airborne and ground-based communications equipment
US10547373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Oct 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A flight transceiver station (FTS) mounted onboard an aircraft communicates with one or more terrestrial transceiver points by determining, for a future moment in time, a position of the flight transceiver station in 3-dimensional space; an attitude of the flight transceiver station; one or more respective directions from the position of the flight transceiver station to the one or more terrestrial transceiver points; respective radial velocities between the flight transceiver station and the one or more terrestrial transceiver points. The FTS also determines, based on the respective directions and attitudes, beamforming weights for one or more transmit beams towards each of the one or more terrestrial transceiver points; and predicts, based on the respective radial velocities, respective Doppler shifts of a carrier frequency used between the flight transceiver station and the one or more terrestrial transceiver points. The beamforming weights for the one or more transmit beams, and a Doppler pre-compensation based on the predicted Doppler shifts are applied to transmitter equipment of the flight transceiver station, at the future moment in time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.