5G Ultra-Reliable and Low Latency Communication Resource Scheduling for Power Business Quality Assurance
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摘要: 该文研究面向电网业务质量保障的5G 高可靠低时延通信(URLLC)的资源调度机制，以高效利用低频段蜂窝通信系统内有限的频谱和功率资源来兼顾电力终端传输速率和调度时延、调度公平性，保障不同电力业务的通信质量（QoS）。首先，基于URLLC的高可靠低时延传输特性，建立电力终端多小区下行传输模型。然后，提出面向系统下行吞吐量最大化的资源分配问题模型并对其进行分步求解，分别提出基于定价机制与非合作博弈的功率分配算法和基于调度时延要求的改进比例公平算法（DPF）动态调度信道资源。仿真结果表明，提出的资源调度方法能在保证一定传输可靠性和公平性的条件下降低电力终端调度时延，满足不同业务等级的QoS需求，与已知算法对比有一定的优越性。Abstract: The resource scheduling method of 5G URLLC (Ultra-Reliable and Low Latency Communication) is studied in this paper to assure the Quality of Service (QoS) of various power business, which utilizes the limited spectrum and power in low-band cellular communication system to meet the requirement of power terminal about transmission rate, scheduling delay and fairness in an efficient manner. Firstly, based on the high reliability and low latency characteristics of URLLC, a multi-cell downlink system model is built. Then, a resource allocation problem model for maximizing downlink throughput is proposed and solved step by step. Power allocation algorithm bases on pricing mechanism and non-cooperative game and an Delay-based Proportional Fair (DPF）algorithm is designed to schedule channel resource dynamicly. Simulation results show that the proposed resource scheduling method can reduce the scheduling delay of power terminals under the constraints of transmission reliability and fairness while meeting the different QoS requirements. The proposed method outperforms some known algorithms.
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