Abstract

The softwarization of wireless networks has necessitated an overhaul of existing mobility management strategies. Specifically, mobility management is no longer constrained to function within the boundaries of a pre-existing radio access network. Softwarization of the network infrastructure allows resource configurations and associations to be changed on-demand, in a manner so as to support a least cost mobility management framework. To this end, this paper presents an optimal radio access network design framework augmented with user-specific clusters from the perspective of mobility management. The proposed framework is supported by a detailed mathematical model that characterizes user mobility, system traffic, and signaling costs. Performance evaluation is based on a cost comparison with conventional LTE/NR networks, and reinforces the fact that the framework proposed herein results in significant cost reduction, even in the face of changing network scenarios.

中文翻译：

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具有软件定义的移动性管理的无线电接入网设计

摘要

无线网络的软化必须对现有的移动性管理策略进行全面改革。具体地，移动性管理不再被限制为在预先存在的无线电接入网络的边界内起作用。网络基础结构的软化允许以一种方式支持按需更改资源配置和关联的方式，以支持成本最低的移动性管理框架。为此，本文从移动性管理的角度提出了一种最佳无线接入网设计框架，其中增加了特定于用户的集群。所提出的框架得到了详细的数学模型的支持，该模型描述了用户移动性，系统流量和信令成本。性能评估基于与常规LTE / NR网络的成本比较，