摘要
上行功率控制是TD-LTE系统空中接口的关键技术之一,用户根据功率控制参数对不同信道设定不同的上行发射功率。本文首先介绍了TD-LTE系统架构与上行功率控制的基本概念;接着详细阐述了上行功率控制的3种方式:上行共享信道PUSCH的功率控制、上行控制信道PUCCH的功率控制和SRS的功率控制;最后对上行功率控制算法进行了性能仿真和简要的结果分析。
Uplink power controlling is the key technology of TD-LTE system air interface, users can set different uplink transmission power for different channel according to power control parameters. This paper first introduces the TD-LTE system architecture and the basic concept of uplink power controlling; Then uplink power controlling is introduced in detail in three ways： uplink shared channel PUSCH power control, uplink control channel PUCCH power control and SRS power control; Finally this paper gives performance simulation for the uplink power control algorithm and a brief analysis of the results.
出处
《信息网络安全》
2013年第6期84-86,共3页
Netinfo Security
关键词
系统架构
共享信道
探测信号
波束赋形
接入概率
system architecture
shared channel
detecting signal
beamforming
accessing probability
