In this method, the multi-user channel was decomposed into independent single user channel on which lattice reduction precoding can be used.And each user can be equiped with several antennas.

• 该方法使用ZF波束成形将多用户信道划分为独立的单用户信道，再对各个单用户信道进行基于LR的预编码，解决了MIMO系统中下行链路进行预编码时，每个用户只能使用一个天线的问题，提高了系统的误码性能。