5G Ultra-Reliable Low Latency Communications Technology (URLLC) will not be able to provide extremely reliable low latency services to the complex networks in 6G. Moreover, URLLC that began with 5G has to be refined and improved in 6G to provide xURLCC (extreme URLCC) with sub-millisecond latency, for supporting diverse mission-critical applications. This paper aims to highlight the importance of peer-to-peer mesh connectivity for services that require xURLLC. Deploying mesh connectivity among RAN nodes would add significant value to the current 5G New Radio (5G NR) enabling 6G to increase flexibility and reliability of the networks while reducing the inherent latency introduced by the core network. To provide a mesh connectivity in RAN, the nodes should be able to communicate with each other directly and be independent from the mobile core network so that data can be directly exchanged between base stations (gNBs) whereas certain aspects of signalling procedure including data session establishment will be managed by RAN itself. In this paper, we introduce several architectural choices for a mesh network topology that could potentially be crucial to a number of applications. In addition, three possible options to create mesh connectivity in RAN are provided, and their pros and cons are discussed in detail.
翻译:5G ULLC (URLLC) 无法为6G的复杂网络提供极可靠的低潜值服务。 此外,以 5G 开始的 URLLC 必须在 6G 中改进和改进 6G 中为 URLCC (extreme URLCC) 提供 ExURLCC (extreme URLCC) 的二微秒延迟度,以支持不同的任务关键应用程序。本文件旨在强调对等对等网格连接对于需要xURLLC的服务的重要性。 在 RAN 节点之间部署网格连接将给目前的 5G 新电台(5G NR) 带来巨大价值,使 6G 能够提高网络的灵活性和可靠性,同时减少核心网络引入的固有延迟。要提供 RAN 网格连接网格,节点应该能够直接相互沟通,独立于移动核心网络,以便各基站之间能够直接交换数据,而信号程序的某些方面,包括数据会议建立将由RAN 本身管理。 在本文中,我们介绍一些建筑选择,在MIS 顶层网络应用中提供三种可能的关键选项。