优选基干扰信道码本化与协作干扰消除技术

信道码本化损失是影响小区间协作多点传输（CoMP）技术效果最关键的因素，为了解决码本化有效性问题，提出了新的空间基信道码本化有效性分析法，并提出了一种新的优选空间基多维度码本化方法，推导出遗留干扰关键影响因素，基于这些推导提出了新的基站间协作干扰消除方法.仿真结果表明，相比传统方法，新方法实现了2次干扰控制，干扰消除效果好，并且无须更新码本，可以在反馈量和干扰消除效果之间灵活权衡，具备良好的扩展性.

Codebook of Wireless Channel and Cooperative Interference Cancellation Technology

The accuracy of the feedback codebook is a key factor for coordinated multi-point transmission/reception (CoMP). A new method of codebook evaluation based on space basis vectors and a method of codebook reconstruction with several preferred space basis vectors are proposed. Furthermore, the residual interference is discussed and its key influencing factors is deduced. Base on the above, this article proposes a new CoMP approach to do further interference cancellation. Simulation shows that, compared to the traditional methods, the new method has better performance in interference cancellation with advantages such as unnecessary to update codebook, flexible trade-off between feedback overhead and interference cancellation effect and good scalability.