1.绍兴职业技术学院信息工程学院,浙江 绍兴 312000
2.杭州师范大学信息科学与技术学院,浙江 杭州 311121
3.浙江大学软件学院,浙江 宁波 315000
[ "求钦龙(1978-),男,浙江绍兴人,高级工程师,浙江大学计算机专业博士,绍兴职业技术学院信息工程学院副院长。研究方向:通信系统性能优化、网络容量规划及高精度定位技术。E-mail:qiuql@sxvtc.edu.cn" ]
收稿:2026-02-23,
修回:2026-03-17,
录用:2026-04-09,
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求钦龙, 李文娟, 张启飞. 5G网络中PDSCH RBG随机化分配策略的性能优化研究[J/OL]. 电信科学, 2026.
QIU Qinlong, LI Wenjuan, ZHANG Qifei. Research on Performance Optimization of Randomized RBG Allocation Strategies for PDSCH in 5G Networks[J/OL]. Telecommunications Science, 2026.
求钦龙, 李文娟, 张启飞. 5G网络中PDSCH RBG随机化分配策略的性能优化研究[J/OL]. 电信科学, 2026. DOI: 10.11959/j.issn.1000-0801.DXKX260115.
QIU Qinlong, LI Wenjuan, ZHANG Qifei. Research on Performance Optimization of Randomized RBG Allocation Strategies for PDSCH in 5G Networks[J/OL]. Telecommunications Science, 2026. DOI: 10.11959/j.issn.1000-0801.DXKX260115.
针对5G网络多小区同频干扰与复杂信道环境快速变化的挑战,提出一种物理下行共享信道(physical downlink shared channel,PDSCH)资源块组(resource block group,RBG)随机化分配方法,并通过理论分析确立其性能边界。该方法通过随机化不同小区的频域资源位置,有效规避资源重叠,显著抑制小区间干扰;同时通过对用户设备(user equipment,UE)进行均匀频域调度,保障各位置用户获得稳定的服务质量,缓解资源分配不均导致的体验差异。系统级仿真结果表明,在中低负载场景下,所提方法能够提升小区平均吞吐量4%以上,小区边缘用户的吞吐量16%以上。
To address the challenges of inter-cell co-channel interference and rapid channel variations in complex 5G network environments
a randomized resource block group (RBG) allocation method for the physical downlink shared channel (PDSCH) is proposed
and its performance boundaries are theoretically established. By randomizing the frequency-domain resource positions across different cells
the proposed method effectively avoids resource overlapping and significantly suppresses inter-cell interference. Meanwhile
through uniform frequency-domain scheduling for user equipments (UEs)
it ensures stable service quality for users at various locations
thereby alleviating experience disparities caused by uneven resource distribution. System-level simulation results demonstrate that the proposed method improves the average cell throughput by more than 4% and the cell-edge user throughput by more than 16% under medium and low load scenarios.
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