The fifth generation(5G)of wireless networks features three core use cases,namely ultra-reliable and low latency communications(URLLC),massive machine type communications(mMTC),and enhanced mobile broadband(eMBB).Thes...The fifth generation(5G)of wireless networks features three core use cases,namely ultra-reliable and low latency communications(URLLC),massive machine type communications(mMTC),and enhanced mobile broadband(eMBB).These use cases co-exist in many practical scenarios and compete for the same set of time and frequency resources,resulting in a natural trade-off in their performance.In this paper,a network supporting both URLLC and eMBB modes of operation is studied.To guarantee the ultra low latency requirement of URLLC,a dynamic resource allocation scheme indicated by a two-dimensional bitmap is proposed.This approach is capable to achieve finer granularity as well as lower false cancellation rate compared to the state-of-the-art methods.A novel power control and indication method is also proposed to dynamically provide different power control parameters to the user equipment(UE),while guaranteeing the reliability requirement of URLLC and minimizing the impact to eMBB.In addition,we devise a dynamic selection mechanism(DSM)to accommodate diverse scenarios,which is empowered with load prediction to become more intelligent.Our extensive system-level simulation results for eMBB-URLLC co-existence scenarios showcase that the perceived throughput of eMBB UEs is increased by 45.3%,while about 13.3% more UEs are enjoying URLLC services with at most 84% transmit power savings compared to the state-of-the-art methods.展开更多
作为5G组网环境的必要组成条件之一,增强移动宽带(Enhanced mobile Broadband,eMBB)应用场景设计始终是5G网络初期建设的重点工作方向,在端到端网络切片技术的支持下,eMBB应用场景能够直接满足5G组网环境对于数据信息资源的一切需求。研...作为5G组网环境的必要组成条件之一,增强移动宽带(Enhanced mobile Broadband,eMBB)应用场景设计始终是5G网络初期建设的重点工作方向,在端到端网络切片技术的支持下,eMBB应用场景能够直接满足5G组网环境对于数据信息资源的一切需求。研究eMBB应用场景下的5G核心网切片设计方法,通过获取关键性能指标的方式,完善与更新实际设计方案,为5G应用网络的部署提供可行性参考条件。展开更多
文摘The fifth generation(5G)of wireless networks features three core use cases,namely ultra-reliable and low latency communications(URLLC),massive machine type communications(mMTC),and enhanced mobile broadband(eMBB).These use cases co-exist in many practical scenarios and compete for the same set of time and frequency resources,resulting in a natural trade-off in their performance.In this paper,a network supporting both URLLC and eMBB modes of operation is studied.To guarantee the ultra low latency requirement of URLLC,a dynamic resource allocation scheme indicated by a two-dimensional bitmap is proposed.This approach is capable to achieve finer granularity as well as lower false cancellation rate compared to the state-of-the-art methods.A novel power control and indication method is also proposed to dynamically provide different power control parameters to the user equipment(UE),while guaranteeing the reliability requirement of URLLC and minimizing the impact to eMBB.In addition,we devise a dynamic selection mechanism(DSM)to accommodate diverse scenarios,which is empowered with load prediction to become more intelligent.Our extensive system-level simulation results for eMBB-URLLC co-existence scenarios showcase that the perceived throughput of eMBB UEs is increased by 45.3%,while about 13.3% more UEs are enjoying URLLC services with at most 84% transmit power savings compared to the state-of-the-art methods.
文摘作为5G组网环境的必要组成条件之一,增强移动宽带(Enhanced mobile Broadband,eMBB)应用场景设计始终是5G网络初期建设的重点工作方向,在端到端网络切片技术的支持下,eMBB应用场景能够直接满足5G组网环境对于数据信息资源的一切需求。研究eMBB应用场景下的5G核心网切片设计方法,通过获取关键性能指标的方式,完善与更新实际设计方案,为5G应用网络的部署提供可行性参考条件。
