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    • 7. 发明申请
    • WIRELESS COMMUNICATION LINKS BETWEEN AIRBORNE AND GROUND-BASED COMMUNICATIONS EQUIPMENT
    • 无线通信链路在机载和地面通信设备之间
    • WO2018078004A1
    • 2018-05-03
    • PCT/EP2017/077419
    • 2017-10-26
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    • AXMON, JoakimRAHMAN, ImadurPRYTZ, MikaelSIENKIEWICZ, EstherCALLENDER, Christopher
    • H04B7/185
    • A flight transceiver station (FTS 400) mounted onboard an aircraft communicates with one or more terrestrial transceiver points (TTPs) by determining (901, 903, 905, 907), for a future moment in time t, 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 400 also determines (911), 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 (913), 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 (919) to transmitter equipment of the flight transceiver station, at the future moment in time t.
    • 通过确定(901,903,905,907)未来时刻t,飞行器上安装的飞行收发信台(FTS 400)与一个或多个地面收发信机点(TTP)通信 ,飞行收发信台在三维空间中的位置; 飞行收发信台的姿态; 从飞行收发信机位置到一个或多个地面收发信机点的一个或多个相应方向; 飞行收发信机站与一个或多个地面收发信机点之间的相应径向速度。 FTS400还基于相应的方向和姿态确定(911)用于朝向一个或多个地面收发器点中的每一个的一个或多个发射波束的波束成形权重; 并且基于相应的径向速度来预测(913)在所述飞行收发器站与所述一个或多个地面收发器点之间使用的载波频率的相应多普勒频移。 针对一个或多个发射波束的波束成形权重以及基于预测的多普勒频移的多普勒预补偿在未来的时刻t被应用(919)给飞行收发机站的发射机设备。
    • 9. 发明申请
    • POWER TESTING A RADIO TRANSCEIVER DEVICE
    • 电源测试无线收发器设备
    • WO2016200304A1
    • 2016-12-15
    • PCT/SE2015/050678
    • 2015-06-11
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    • CHAPMAN, ThomasELFSTRÖM, TorbjörnSIENKIEWICZ, Esther
    • H04B17/10
    • H04B17/102H04B17/0087
    • There is provided mechanisms for power testing a radio transceiver device. A method is performed by radio transceiver test device. The method comprises acquiring a first test signal having been transmitted over a radio interface from a radio transceiver device. The method comprises acquiring the first test signal having been transmitted over a wired interface from the radio transceiver device. The method comprises acquiring a second test signal having been transmitted over the wired interface by the radio transceiver device, wherein the second test signal and the first test signal are of different types. The method comprises making a first comparison of the received power of the first test signal transmitted over the radio interface to the first test signal transmitted over the wired interface. The method comprises making a second comparison of the first received power of the test signal transmitted over the wired interface to the received power of the second test signal transmitted over the wired interface. The method comprises estimating, from the comparisons, received power of the second test signal if transmitted over the radio interface from the radio transceiver device.
    • 提供了用于对无线电收发器设备进行功率测试的机制。 无线电收发机测试装置执行一种方法。 该方法包括获取已经通过无线电接口从无线电收发器设备发送的第一测试信号。 该方法包括从无线电收发器装置获取已经通过有线接口发送的第一测试信号。 该方法包括获取通过无线电收发器设备通过有线接口发送的第二测试信号,其中第二测试信号和第一测试信号是不同类型的。 该方法包括:通过无线电接口发送的第一测试信号的接收功率与通过有线接口传输的第一测试信号的第一比较。 该方法包括:通过有线接口发送的测试信号的第一接收功率与通过有线接口发送的第二测试信号的接收功率进行第二比较。 该方法包括从比较中估计如果通过无线电接口从无线电收发机设备发送的第二测试信号的接收功率。