Sixth-generation (6G) networks are envisioned to support interconnected local subnetworks that can share specialized, beyond-connectivity services. However, a standardized architecture for discovering and selecting these services across network boundaries has not existed yet. To address this gap, this paper introduces the Central Repository and Selection Function (CRSF), a novel network function for the 6G core that facilitates efficient inter-subnetwork service discovery and selection. We formulate the selection process as a QoS-aware optimization problem designed to balance service quality metrics with user-defined priorities. We evaluate our system model through simulations for a sensing service scenario and observe a consistently higher aggregate Quality of Service (QoS) compared to the baseline selection strategy. The proposed CRSF provides a foundational and extensible mechanism for building standardized, collaborative, and service-centric interconnected networks essential for the 6G era.

翻译：第六代（6G）网络被设想为支持可共享专业化超连接服务的互连本地子网络。然而，目前尚缺乏用于跨网络边界发现和选择这些服务的标准化架构。为填补这一空白，本文提出了中央存储库与选择功能（CRSF），这是一种面向6G核心网的新型网络功能，旨在促进跨子网络的高效服务发现与选择。我们将选择过程建模为一个服务质量感知的优化问题，旨在平衡服务质量指标与用户定义的优先级。通过针对感知服务场景的仿真评估系统模型，观察到相较于基线选择策略，系统在聚合服务质量（QoS）上持续表现出更优性能。所提出的CRSF为构建6G时代所必需的标准化、协作式、以服务为中心的互连网络提供了基础性且可扩展的机制。