发明授权
- 专利标题: Wireless communication links between airborne and ground-based communications equipment
-
申请号: US16345692申请日: 2017-10-26
-
公开(公告)号: US10547373B2公开(公告)日: 2020-01-28
- 发明人: Joakim Axmon , Christopher Callender , Mikael Prytz , Imadur Rahman , Esther Sienkiewicz
- 申请人: Telefonaktiebolaget LM Ericsson (publ)
- 申请人地址: SE Stockholm
- 专利权人: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
- 当前专利权人: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
- 当前专利权人地址: SE Stockholm
- 代理机构: Leffler Intellectual Property Law, PLLC
- 代理商 Kenneth B. Leffler
- 国际申请: PCT/EP2017/077419 WO 20171026
- 国际公布: WO2018/078004 WO 20180503
- 主分类号: H04B7/185
- IPC分类号: H04B7/185 ; H04B7/204
摘要:
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.
公开/授权文献
信息查询