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    • 79. 发明申请
    • METHOD FOR DEMODULATING DATA AND DEMODULATING APPARATUS BASED ON A DOWNLINK TRANSMIT DIVERSITY MODE IN A LTE SYSTEM
    • 基于LTE系统中的下行链路发射多样性模式解调数据和解调装置的方法
    • US20110292827A1
    • 2011-12-01
    • US13148095
    • 2010-04-14
    • Bin Li
    • Bin Li
    • H04W4/00H04W24/00
    • H04B7/0689H04B7/0837H04L1/0606
    • A demodulating method and a demodulating apparatus at a receiver based on a downlink transmit diversity mode in a LTE system are provided by the present invention. The method includes: dividing received data from sub-carriers of each receiving antenna based on a transmit diversity mode into multiple groups of received data according to numbers of antennas of a transmitter and a receiver; performing an independent demodulation on each group of the multiple groups of received data separately according to a demodulation algorithm of two-port transmitting and single-port receiving, so as to obtain a corresponding group of demodulated data; and for multiple groups of demodulated data corresponding to same transmitted data, performing a maximum ratio combination on the multiple groups of demodulated data according to a channel condition corresponding to each group of the multiple groups of demodulated data, so as to obtain a corresponding final demodulated data value. The demodulating method and the demodulating apparatus of the present invention can ensure the performance of the system adopting the diversity algorithm in situations of various kinds of antenna configurations, reduce cost and the complexity of devices in a practical application, and is very easy for project implementation.
    • 本发明提供了一种基于LTE系统中的下行链路发射分集模式的接收机的解调方法和解调装置。 该方法包括:根据发射机和接收机的天线数量,将基于发射分集模式的每个接收天线的子载波的接收数据分成多组接收数据; 根据双端口发送和单端口接收的解调算法分别对多组接收数据的每组进行独立解调,以获得相应的解调数据组; 以及对应于相同发送数据的多组解调数据,根据对应于多组解调数据的每个组的信道条件对多组解调数据执行最大比组合,以获得对应的最终解调 数据值。 本发明的解调方法和解调装置可以确保在各种天线配置情况下采用分集算法的系统的性能,在实际应用中降低设备的成本和复杂度,并且项目实现非常容易 。