支持混合业务的5G自适应调度和复用技术

5G标准规范目前的版本以满足IMT-2020对数据速率、时延、可靠性等需求为目标,支持增强型移动宽带、超可靠低延时通信、大规模机器类型通信三种应用。为满足5G演进系统中混合部署更多业务类型,服务更加多样化设备的需求,本文研究自适应调度和复用增强的策略,确定通过提高调度准确性、增强基于配置的调度流程、自适应工作带宽调整、改进终端设备内部混合多业务处理流程、增强多业务的复用方式、优化干扰管理和控制、支持同频复用不同空口参数集合方面的技术演进可适配不同等级的设备,满足混合业务各自在可靠性、可获得性、可维护性、安全性和完整性方面的需求。

5G Adaptive Scheduling and Multiplexing Technologies for Mixed Services

For meeting the requirements of IMT-2020 in terms of data rate,latency,reliability,etc.,the current 5 G specifi cation supports enhanced mobile broadband(e MBB),ultra-reliable low latency communications(URLLC),and massive machine-type communication(m MTC).To satisfy the requirements of deploying more types of services and serving more diversified devices in 5 G evolution system,this paper investigates adaptive scheduling and multiplexing enhancement technologies.As a result,the requirements of mixed services in terms of reliability,availability,maintainability,security and integrity can be satisfied by improving the scheduling accuracy,enhancing the confi gured grant scheduling procedure,adjusting the working bandwidth adaptatively,modifying the mixed-service processing of terminal devices,enhancing the mixed-service multiplexing,optimizing the interference management and control,and supporting the technology evolution of multiplexing different air-interface parameters with the same frequency for the devices with different levels.