Large-scale carrier networks are fundamental ICT infrastructures that support future 5G/6G services, and their resilience is a primary societal concern. Differently from single-carrier networks (in which one carrier owns multiple networks), in multi-carrier network ecosystems (in which the networks in the fields are operated by different carriers), cooperation among such different carriers is crucial to achieve resilience against large-scale failures. However, such cooperation is challenging since carriers may not disclose confidential information, e.g., detailed resource availability. In this study, we investigate how to perform carrier cooperative recovery in the case of large-scale failures/disasters. We propose two-stage carrier-carrier cooperative recovery planning by incorporating a coordinated scheduling for faster recovery. Through numerical evaluation, we confirm the potential benefit of carrier cooperation in terms of both recovery time and recovery cost reduction.

中文翻译：

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运营商合作协调调度方案，实现更快、成本更低的故障/灾难恢复

大规模运营商网络是支撑未来5G/6G业务的基础ICT基础设施，其弹性是社会关注的首要问题。与单运营商网络（其中一个运营商拥有多个网络）不同，在多运营商网络生态系统（其中各领域的网络由不同运营商运营）中，不同运营商之间的合作对于实现抵御大型网络的弹性至关重要。规模失败。然而，这种合作具有挑战性，因为运营商可能不会透露机密信息，例如详细的资源可用性。在本研究中，我们研究如何在大规模故障/灾难的情况下进行运营商协作恢复。我们提出了两阶段的载波-载波协作恢复规划，通过合并协调调度来实现更快的恢复。通过数值评估，我们确认了运营商合作在恢复时间和降低恢复成本方面的潜在好处。