Research on Performance Optimization of Randomized RBG Allocation Strategies for PDSCH in 5G Networks

QIU Qinlong; LI Wenjuan; ZHANG Qifei

doi:10.11959/j.issn.1000-0801.DXKX260115

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Research on Performance Optimization of Randomized RBG Allocation Strategies for PDSCH in 5G Networks

更新时间：2026-05-11

- Research on Performance Optimization of Randomized RBG Allocation Strategies for PDSCH in 5G Networks
- Telecommunications Science (2026)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
  
  The Joint Funds of the Zhejiang Provincial Natural Science Foundation of China(LHZSZ24F020001);The Zhejiang Provincial Leading (Lingyan) RD Program(2026C02A1245)
- DOI：10.11959/j.issn.1000-0801.DXKX260115
  CLC： TN929.53
- Received：23 February 2026，
  
  Revised：2026-03-17，
  
  Accepted：09 April 2026，
- 稿件说明：
移动端阅览
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：

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.

摘要

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。

Abstract

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.

关键词

Keywords

references

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