基于Multi-TRP的5G-R上行控制信道接收技术研究

Research on Uplink Control Channel Receiving of 5G-R Communication Based on Multi-TRP

高铁5G专网(5G-R)对可靠性和时延有更高的要求,而控制信道的可靠性尤其重要。多点传输(Multi-TRP)可以显著提高5G-R性能,是3GPP R165G的重要特性。研究了基于Multi-TRP的5G-R的PUCCH性能。首先,分析了Multi-TRP下控制信息的工作机制;然后,研究了在不同的控制信道格式下,多个接收点的接收信道估计方法和检测方法;最后,通过仿真试验对比了多个接收点的性能。仿真结果表明,Multi-TRP多点接收的性能显著优于单个TRP接收的性能。

The private 5G network system(5G-R)for high-speed railway requires higher reliability and less delay and the reliability of its control channel is especially important.Multi-TRP can improve the performance of 5G-R communication significantly,which is one of key features of 3GPP R165G.This paper studies the PUCCH performance of the 5G-R communication based on Multi-TRP.The working mechanism of control information under Multi-TRP is analyzed and the estimation methods and detection methods of the channel with multiple receiving points in different control channel formats are studied.In the end,the performance of multiple receiving points is compared through a simulation test.The simulation results show that the performance of multiple TRPs jointly received is significantly better than that of a single TRP.