Industry-led initiatives such as the Next G Alliance (NGA) are currently considering how to dimension the spectrum required to support new classes of services envisioned beyond 5G. In particular, support for URLLC brings the challenge of how to dimension stochastic wireless networks to meet stringent reliability and latency requirements. Our analysis indicates that the bandwidth needed to meet URLLC goals can be in the order of gigahertz, beyond what is available in today's mobile networks. Network densification can ease those bandwidth needs but requires new deployment strategies involving substantially larger numbers of sites. As an alternative, we consider multi-connectivity and multi-operator network sharing as efficient ways to reduce the demand for bandwidth without outright deployment of additional base stations.

翻译：行业主导的倡议（如Next G Alliance，简称NGA）目前正探讨如何规划频谱以支持5G之后的新服务类别。特别是，支持URLLC带来了如何在随机无线网络中满足严格可靠性和延迟要求的挑战。我们的分析表明，满足URLLC目标所需的带宽可能达到千兆赫量级，这超出了当前移动网络可用的范围。网络密集化可以缓解带宽需求，但需要涉及大幅增加站点数量的新部署策略。作为替代方案，我们考虑多连接和多运营商网络共享作为减少带宽需求的有效方式，而无需直接部署额外的基站。