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    • 107. 发明公开
    • HYBRID SATELLITE AND TERRESTRIAL OFDM COMMUNICATION METHOD AND APPARATUS
    • 卫星通信和卫星通信
    • EP1897314A1
    • 2008-03-12
    • EP06772847.7
    • 2006-06-12
    • Qualcomm Flarion Technologies, Inc.
    • LANE, Frank, A.LAROIA, RajivLI, Junyi
    • H04L27/26H04B7/185
    • H04L5/023G06Q50/22H04B7/1853H04L1/16H04L27/261H04L27/2614
    • An OFDM wireless communications system includes terrestrial and satellite based base stations. Mobile nodes support two uplink modes of operation, multi-tone mode for terrestrial station interaction and single tone mode for satellite base station interaction. In single tone mode the peak to average power ratio is lower than in the multi-tone mode allowing the same power amplifier to transmit higher average power signals and thus extend range and reach a satellite in geostationary orbit. In multi-tone mode, the mobile node: is temporarily assigned a multi-tone uplink traffic channel segment for user data, is assigned a dedicated control channel for uplink control signals, and supports slaved Ack/Nak for traffic channels. In single tone mode, the mobile node: is assigned a single logical uplink dedicated tone to use for transmitting both user data and control data, and does not use a slaved Ack/Nak mechanism for traffic channels.
    • OFDM无线通信系统包括基于地面和卫星的基站。 移动节点支持两种上行工作模式,用于地面站交互的多音模式和用于卫星基站交互的单音模式。 在单音模式下,峰值与平均功率比低于多音调模式,允许相同的功率放大器传输更高的平均功率信号,从而扩展距离并到达地球静止轨道的卫星。 在多音模式下,移动节点临时分配用于用户数据的多音调上行业务信道段,为上行控制信号分配专用控制信道,并支持业务信道的从属Ack / Nak。 在单音模式中,移动节点被分配用于传送用户数据和控制数据的单个逻辑上行专用音调,并且不对业务信道使用从属的Ack / Nak机制。