基于异构计算加速的开源5G架构  

Open Source 5G Architecture Based on Heterogeneous Computing Acceleration

作　　者：朱子珅 章晨宇 王鲁晗 路兆铭[1,2,3] 温向明[1,2,3] ZHU Zishen;ZHANG Chenyu;WANG Luhan;LU Zhaoming;WEN Xiangming(School of Information and Communications Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China;Beijing Key Laboratory of Network System Architecture and Convergence,Beijing University of Posts and Telecommunications,Beijing 100876,China;Beijing Laboratory of Advanced Information Networks,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京邮电大学信息与通信工程学院,北京100876 [2]北京邮电大学网络体系构建与融合北京市重点实验室,北京100876 [3]北京邮电大学先进信息网络北京实验室,北京100876

出　　处：《北京邮电大学学报》2022年第1期63-68,共6页Journal of Beijing University of Posts and Telecommunications

基　　金：国家重点研发计划项目(2019YFB1803303);中央高校基本科研业务费项目(2020RC04)。

摘　　要：针对通用处理器下开源第5代移动通信系统(5G)处理性能差的问题,研究了开源5G的处理特性并提出了基于异构计算加速的架构。该架构将空口协议栈上层与物理层进行分离,并模块化开源5G物理层功能。在保留通用处理器对于上层协议栈流程处理优势的基础上,引入异构硬件对计算资源需求大的物理层功能模块进行加速。提出异构物理层的概念并设计了计算资源适应性分配的算法。其次,首次实现了基于OpenAirInterface平台的异构加速开源5G软件化平台。对信道编解码和调制模块进行实际测试的结果显示,相比于仅在通用处理器下测试结果,异构计算加速架构能够显著地提升物理层模块的处理性能。Aiming at the problem of poor processing performance of open source of the fifth generation of mobile communications system(5 G)under general processor,the characteristics of open source 5 G are studied and the architecture of heterogeneous computing acceleration is proposed.This proposed architecture separates the upper layer and the physical layer of the air interface protocol stack,and modularizes physical layer functions of the open source 5 G.Utilizing the advantages of general processor on processing upper protocol stack,heterogeneous hardware is introduced to accelerate physical layer function modules,which is demanding for computing resources.The concept of heterogeneous physical layer and the algorithm of adaptive allocation of computing resources are introduced into the architecture.Then,the heterogeneous accelerated open source 5 G software platform is implemented for the first time based on OpenAirInterface platform.The actual tests of channel codec and modulation modules show that the proposed heterogeneous acceleration architecture can significantly improve the processing performance of physical layer compared with general purpose processor architecture.

关 键 词：移动通信 开源第5代移动通信系统 异构计算加速 异构物理层 

分 类 号：TN929.5[电子电信—通信与信息系统]