针对有限反馈的协作多点系统,提出了一种考虑小区间干扰、提高小区边缘用户吞吐量的多小区协作调度算法.利用信道质量指示值(CQI)的差值(差分CQI)表征协作区域内相邻小区的用户采用不同预编码向量时对本小区用户的干扰情况.基站根据由用户反馈、小区间交互得到的差分CQI生成干扰加权因子,结合小区内比例公平调度算法计算的优先级因子,完成协作区域内不同小区间的用户配对和调度.新算法兼顾了系统的公平性和频谱效率,通过协调不同小区用户间的干扰,提高了边缘用户的数据速率,并利用差分CQI的反馈与交互,减小了协作小区间控制信息交互量. Aiming at cooperative multi-point system with limited feedback, this paper proposes a multi-cell cooperative scheduling algorithm that considers inter-cell interference and improves throughput of cell-edge users. It uses the difference of channel quality indicator (CQI) The interference of the users in the neighboring cells to the users in the cell when using different precoding vectors The base station generates the interference weighting factors according to the differential CQI obtained from the user feedback and inter-cell interaction, and combines the priority factors calculated by the intra-cell proportional fairness scheduling algorithm to complete User pairing and scheduling among different cells in collaborative area.The new algorithm takes into account the fairness and spectrum efficiency of the system and improves the data rate of edge users by coordinating the interference among users in different cells and makes use of the feedback and interaction of differential CQI, Reduce the amount of control information interaction between cooperative cells.