发表机构
The University of Texas at Dallas; Indian Institute of Technology Dharwad（德克萨斯大学达拉斯分校; 达尔瓦德印度理工学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
针对5G网络中静态QoS到DRB映射导致的频谱利用低效和延迟敏感流量支持不足问题，提出基于5QI特性的混合QoS感知DRB映射机制，支持多对一与一对一策略，并在OAI平台上实现，提升资源利用率并保障严格QoS。
AI 中文摘要
在第五代（5G）无线网络中，服务质量（QoS）流管理支持具有异构QoS需求的多样化应用，包括延迟敏感型和高吞吐量服务。5G架构采用基于流的QoS框架，其中QoS流被映射到数据无线承载（DRB）以实现所需的无线资源分配。现有的映射策略通常依赖于每个PDU会话的静态一对一QoS到DRB映射，导致频谱利用效率低下或对延迟敏感流量的支持不足。本工作提出了一种基于标准化5G QoS标识符（5QI）特性的混合QoS感知DRB映射机制。所提出的框架在单个PDU会话内整合多个QoS流，支持多对一和一对一两种映射策略。该混合框架通过启用灵活的DRB利用，改善了无线资源利用并减少了承载开销，其中兼容的非关键流共享DRB，而延迟关键流被分配专用DRB以确保严格的QoS保证。所提出的混合QoS感知DRB映射使用开源OpenAirInterface（OAI）移动栈平台实现，以展示所提议功能在现有5G框架内的集成。
英文摘要
In Fifth-Generation (5G) wireless networks, Quality of Service (QoS) flow management supports diverse applications with heterogeneous QoS requirements, including latency-sensitive and high-throughput services. 5G architectures adopt a flow based QoS framework, where QoS flows are mapped to Data Radio Bearers (DRBs) to achieve the desired radio resource allocation. Existing mapping strategies typically rely on static one-to-one QoS-to-DRB mappings per PDU session, leading to inefficient spectrum utilization or inadequate support for delay sensitive traffic. This work presents a hybrid QoS-aware DRB mapping mechanism based on standardized 5G QoS Identifier (5QI) characteristics. The proposed framework incorporates multiple QoS flows within a single PDU session, supporting both many-to-one and one-to-one mapping strategies. The hybrid framework improves radio resource utilization and reduced bearer overhead by enabling flexible DRB utilization, where compatible non critical flows share DRBs while delay-critical flows are assigned dedicated DRBs to ensure strict QoS guarantees. The proposed hybrid QoS-aware DRB mapping is implemented using the open-source OpenAirInterface (OAI) mobile stack platform to demonstrate the integration of the proposed features within the existing 5G framework.
