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Intelligent and Converged Networks 2022, 3(2): 145-160 https://doi.org/10.23919/ICN.2022.0011
Open Access | Issue | Published: 06 September 2022

Dynamic resource allocation schemes for eMBB and URLLC services in 5G wireless networks

Show Author's Information Xianghui Han1,2,3( ),  Kai Xiao2,3,  Ruiqi Liu2,3,  Xing Liu2,3,  George C. Alexandropoulos4,  Shi Jin1
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
State Key Laboratory of Mobile Network and Mobile Multimedia Technology, Shenzhen 518055, China
Wireless Research Institute, ZTE Corporation, Beijing 100029, China
Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens 15784, Greece
Southeast University, Nanjing 210096, China
Keywords:
power control, resource allocation, the fifth generation (5G), co-existence, enhanced mobile broadband (eMBB), multiplexing, ultra-reliable and low latency communications (URLLC), uplink
Cite this article:
Han X, Xiao K, Liu R, et al. Dynamic resource allocation schemes for eMBB and URLLC services in 5G wireless networks. Intelligent and Converged Networks, 2022, 3(2): 145-160. https://doi.org/10.23919/ICN.2022.0011
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Abstract Full text About this article

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.


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Dynamic resource allocation schemes for eMBB and URLLC services in 5G wireless networks

Show Author's information Xianghui Han1,2,3( ), Kai Xiao2,3, Ruiqi Liu2,3, Xing Liu2,3, George C. Alexandropoulos4, Shi Jin1
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
State Key Laboratory of Mobile Network and Mobile Multimedia Technology, Shenzhen 518055, China
Wireless Research Institute, ZTE Corporation, Beijing 100029, China
Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens 15784, Greece
Southeast University, Nanjing 210096, China

Abstract

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.

Keywords: power control, resource allocation, the fifth generation (5G), co-existence, enhanced mobile broadband (eMBB), multiplexing, ultra-reliable and low latency communications (URLLC), uplink

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Publication history

Received: 24 May 2022
Accepted: 22 June 2022
Published: 06 September 2022
Issue date: June 2022

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