基于用户位置的TD-LTE上行功率控制研究  

TD-LTE Uplink Power Control Research Based on Users Location

作　　者：文凯[1,2] 苏颖博[2] 詹鹏[2] 

机构地区：[1]重庆信科设计有限公司,重庆400065 [2]重庆邮电大学,重庆400065

出　　处：《电视技术》2012年第1期71-73,105,共4页Video Engineering

摘　　要：为了减小小区间干扰,3GPP 36.213协议中规定TD-LTE上行链路进行慢速功率控制。在该协议的基础上提出了基于用户位置的上行功率控制方法,首先根据RSRP的值估算出不同用户的路径损耗,再根据路径损耗的大小将用户划归到不同的区域,然后对某个特定的区域采用相应的功控算法,通过仿真证明该方法可以有效减少小区间干扰,提高系统的吞吐量。In order to reduce inter-cell interference, TD-LTE uphnk uses slow power control in 3GPP 36. 213 specification. In this paper, a uplink power control method is proposed based on users location, firstly, the path loss of the different users should be estimated based on the value of RSRP. Secondly, these users are placed to different areas according to the size of the path loss. Lastly, a specific region uses the corresponding power control al- gorithm. The simulation results show that the method can effectively reduce the inter-cell interference and increase system throughput.

关 键 词：TD—LTE 路径损耗 功率控制 吞吐量 

分 类 号：TN929.5[电子电信—通信与信息系统]