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    • 2. 发明公开
    • 무선통신시스템에서의 피드백 전송 및 적응 전송 방법
    • 无线电通信系统中的反馈传输和自适应传输方法
    • KR1020090054694A
    • 2009-06-01
    • KR1020070121504
    • 2007-11-27
    • 한국전자통신연구원경희대학교 산학협력단
    • 김윤희심성보양동화엄중선황성현김창주송명선
    • H04L1/16H04L1/12H04L27/26
    • H04L1/16H04L1/0026H04L27/2602H04L27/2626
    • A method for feedback transmission and adaptive transmission in a wireless communication system is provided to improve data transmission efficiency by supporting a band-AMC mode and a diversity mode in time division or frequency division at the same time. A user terminal extracts the channel quality information from a receiving signal and selects a sub band to perform the feedback of the channel quality information(S10). The user terminal feeds back the channel quality information to a base station according to the selection of the sub band(S20). The base station determines the existence of the sub band channel quality information and detects the channel quality information(S30). The base station transmits an adaptive transmission waveform according to the transmission mode by determining the transmission mode by the channel quality information which is fed back(S50). The user terminal receives the adaptive transmission waveform transmitted from the base station and recovers the received waveform according to the determined transmission mode(S60).
    • 提供了一种用于在无线通信系统中进行反馈传输和自适应传输的方法,以通过同时支持频段AMC模式和分集或分频的分集模式来提高数据传输效率。 用户终端从接收信号中提取信道质量信息,并选择子带来执行信道质量信息的反馈(S10)。 用户终端根据子带的选择将信道质量信息反馈给基站(S20)。 基站确定子带信道质量信息的存在并检测信道质量信息(S30)。 基站通过反馈的信道质量信息确定发送模式,根据发送模式发送自适应发送波形(S50)。 用户终端接收从基站发送的自适应发送波形,并根据确定的发送模式恢复接收到的波形(S60)。