5G系统PUCCH格式3的信道估计及其高速下的改进  

Channel Estimation of PUCCH Format 3 in 5G System and Its Improvement at High Speed

作　　者：郑涵予 宋铁成[1] 王东明[1] 胡静[1] Zheng Hanyu;Song Tiecheng;Wang Dongming;Hu Jing(National Mobile Communications Research Laboratory,Southeast University,Nanjing 211189,China)

机构地区：[1]东南大学移动通信国家重点实验室,南京211189

出　　处：《信息化研究》2021年第6期30-33,43,共5页INFORMATIZATION RESEARCH

基　　金：国家重点研发计划(No.2020YFB1600104)。

摘　　要：针对5G系统物理上行控制信道发送格式3的格式特点,文章提出了一种时域维纳滤波信道估计算法。利用自相关矩阵计算导频部分的信道响应,再利用插值算法获得数据部分的信道响应。在瑞利衰落信道环境下进行Matlab仿真,与LS算法相比,该算法在性能上有很大的提高。在这个算法的基础上,文章进一步提出了适用于高速移动环境的改进信道估计算法。仿真结果表明,该算法具有一定的性能增益。Aiming at the format characteristics of the physical uplink control channel format 3 in 5 G system,this paper puts forward a time-domain wiener filtering channel estimation method.The specific implementation form is:use the autocorrelation matrix to calculate the channel response of the pilot part,and then use the interpolation algorithm to obtain the channel response of the data part.The Matlab simulation is performed in the Rayleigh fading channel environment.Compared with the LS algorithm,the performance of the algorithm is greatly improved.On the basis of this algorithm,this paper further puts forward an improved channel estimation algorithm suitable for high-speed mobile environments.The simulation results show that the algorithm has a certain performance gain.

关 键 词：5G系统 物理上行控制信道 信道估计 信道响应 高速移动 

分 类 号：TN914.2[电子电信—通信与信息系统]