求翻译：预编码是一种信号处理技术，它的核心是：在发送端进行信号预处理，将用户之间的干扰预消除掉，从而实现多用户通信，提高了可靠性与系统容量。是什么意思？

Precoding is a signal processing technology, its core is: signal pre-processing at the sending end, the interference between the users pre-eliminated, in order to achieve multi-user communications, improved reliability and system capacity.

The encoding is a signal processing technology, it is the core: at the sending end to signal pre-processing, interference between the user's pre-out, multi-user communication, improve the reliability and capacity of your system.

The pre-code is one kind of signal processing technology, its core is: In the transmitting end clear signal pretreatment, eliminates in advance user's between disturbance, thus realizes the multiuser correspondence, enhanced the reliability and the system capacity.

Precoding is a signal processing technology, is the core of it: signal pretreatment at the sending end, pre-eliminate interference between users, enabling user traffic, improved reliability and system capacity.

正在翻译，请等待...