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    • 9. 发明申请
    • POWER CONTROLLED ADAPTIVE MODULATION AND CODING SCHEME IN SATELLITE COMMUNICATIONS SYSTEM
    • 卫星通信系统的功率自适应调制和编码方案
    • US20110149836A1
    • 2011-06-23
    • US12943182
    • 2010-11-10
    • Tae-Chul HONGKunseok KangDo-Seob AhnHo-Jin Lee
    • Tae-Chul HONGKunseok KangDo-Seob AhnHo-Jin Lee
    • H04B7/185H04W52/04
    • H04B7/18543H04L1/0003H04L1/0009H04L1/0021H04L1/0026H04L1/0028H04W52/262H04W52/58
    • A power controlled adaptive modulation and coding (AMC) scheme in a satellite communications system includes: calculating, by a user terminal, a received signal-to-noise ratio (SNR) through a packet received from a base station; removing a power control level applied to a packet received before the received packet from the calculated received SNR, and deciding the value obtained by decreasing the calculated received SNR by the power control level; deciding an AMC mode based on the decided received SNR; determining whether power control is required, and deciding a required power control magnitude depending on a channel state positioned in the AMC mode range; transmitting the decided AMC mode and the decided power control information to the base station through channel quality indicator (CQI) feedback; and applying the AMC mode based on information received, and increasing a power by a power control magnitude decided from the received information.
    • 卫星通信系统中的功率控制自适应调制和编码(AMC)方案包括:由用户终端通过从基站接收到的分组来计算接收信噪比(SNR); 从所计算的接收到的SNR中去除应用于在接收到的分组之前接收到的分组的功率控制电平,以及通过将所计算的接收SNR减小所获得的值来确定功率控制电平; 基于所确定的接收到的SNR来决定AMC模式; 确定是否需要功率控制,以及根据位于AMC模式范围内的信道状态来确定所需的功率控制幅度; 通过信道质量指示符(CQI)反馈将决定的AMC模式和决定的功率控制信息发送到基站; 以及基于所接收的信息应用AMC模式,并且通过从所接收的信息确定的功率控制量来增加功率。
    • 10. 发明授权
    • Power controlled adaptive modulation and coding scheme in satellite communications system
    • 卫星通信系统中的功率控制自适应调制和编码方案
    • US08411615B2
    • 2013-04-02
    • US12943182
    • 2010-11-10
    • Tae-Chul HongKunseok KangDo-Seob AhnHo-Jin Lee
    • Tae-Chul HongKunseok KangDo-Seob AhnHo-Jin Lee
    • H04B7/185
    • H04B7/18543H04L1/0003H04L1/0009H04L1/0021H04L1/0026H04L1/0028H04W52/262H04W52/58
    • A power controlled adaptive modulation and coding (AMC) scheme in a satellite communications system includes: calculating, by a user terminal, a received signal-to-noise ratio (SNR) through a packet received from a base station; removing a power control level applied to a packet received before the received packet from the calculated received SNR, and deciding the value obtained by decreasing the calculated received SNR by the power control level; deciding an AMC mode based on the decided received SNR; determining whether power control is required, and deciding a required power control magnitude depending on a channel state positioned in the AMC mode range; transmitting the decided AMC mode and the decided power control information to the base station through channel quality indicator (CQI) feedback; and applying the AMC mode based on information received, and increasing a power by a power control magnitude decided from the received information.
    • 卫星通信系统中的功率控制自适应调制和编码(AMC)方案包括:由用户终端通过从基站接收的分组来计算接收信噪比(SNR); 从所计算的接收到的SNR中去除应用于在接收到的分组之前接收到的分组的功率控制电平,以及通过将所计算的接收SNR减小所获得的值来确定功率控制电平; 基于所确定的接收到的SNR来决定AMC模式; 确定是否需要功率控制,以及根据位于AMC模式范围内的信道状态来确定所需的功率控制幅度; 通过信道质量指示符(CQI)反馈将决定的AMC模式和决定的功率控制信息发送到基站; 以及基于所接收的信息应用AMC模式,并且通过从所接收的信息确定的功率控制量来增加功率。