LTE-A系统中上行闭环功率控制的改进方法  

An improved method for the uplink closed loop power control in LTE-A system

作　　者：刘琳[1] 苏寒松[1] 刘高华[1] 支雯[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《信息技术》2016年第10期132-137,共6页Information Technology

摘　　要：针对传统闭环功率控制方案提出了一种新的上行功率控制策略,在原有闭环功率控制的基础上,针对不同区域的UE采用不同的发射功率控制方案。基于TDD-LTE仿真结果表明,改进算法在小区平均吞吐量和边缘UE吞吐量之间进行了很好的折中,相对于传统开环方案的边缘UE吞吐量平均提升约19.85%,相对于传统闭环方案的小区平均吞吐量平均提升约8.75%。A new kind of scheme based on the original closed loop power control is proposed as the new strategy of power control in the uplink,different UEs have different transmission power control scheme according to their environment and location. The results of simulation based on TDD-LTE show that,the improved algorithm proposed in this paper reaches a good compromise between the average cell throughput and the outage cell throughput,the outage cell throughput is increased by 19. 85% relative to the open loop scheme,compared with the traditional closed loop method,the cell average throughput is increased about 8. 75%.

关 键 词：LTE-A 上行 干扰 闭环 功率控制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]