一种LTE预编码矩阵的优化方案和实现

An optimized scheme and implement of pre-decoding matrix based on LTE

在目前通信领域,LTE技术应用十分广泛。根据不同的需求,LTE提供多种通信模式可供选择,如单端口、发射分集、空间复用以及波束赋形等。对于空间复用模式,信号在发射前会进行预编码(Precoding),因此接收端需要进行相应的预解码操作。文中基于预编码矩阵的特点,提出一种预解码方案——查表选择法,避免了大量的矩阵运算,节省了资源和功耗,有广泛的应用价值。

LTE technology has a wide application in modern communication domain. It provides many modes for different requirement,such as single antenna port,transmit diversity,spatial multiplexing and so on. Tx signal will be pre-coded for spatial multiplexing mode,so rx signal should be pre-decoded.This paper proposes a pre-decoding scheme- a method of table lookup and selection,which not only greatly reduces resource and power cost,but also has a wide project application value.