Mobility Support in Cellular Networks: A Measurement Study on Its Configurations and Implications

Proceedings of the Internet Measurement Conference 2018 Pub Date : 2018-10-31 DOI:10.1145/3278532.3278546

Haotian Deng, Chunyi Peng, Ans Fida, Jiayi Meng, Y. C. Hu

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引用次数: 34

Abstract

In this paper, we conduct the first global-scale measurement study to unveil how 30 mobile operators manage mobility support in their carrier networks. Using a novel, device-centric tool, MMLab, we are able to crawl runtime configurations without the assistance from operators. Using handoff configurations from 32,000+ cells and > 18,700 handoff instances, we uncover how policy-based handoffs work in practice. We further study how the configuration parameters affect the handoff performance and user data access. Our study exhibits three main points regarding handoff configurations. 1) Operators deploy extremely complex and diverse configurations to control how handoff is performed. 2) The setting of handoff configuration values affect data performance in a rational way. 3) While giving better control granularity over handoff procedures, such diverse configurations also lead to unexpected negative compound effects to performance and efficiency. Moreover, our study of mobility support through a device-side approach gives valuable insights to network operators, mobile users and the research community.

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蜂窝网络中的移动性支持:对其配置和影响的测量研究

在本文中，我们进行了首次全球规模的测量研究，揭示了30家移动运营商如何在其运营商网络中管理移动性支持。使用一种新颖的、以设备为中心的工具MMLab，我们能够在没有运营商帮助的情况下抓取运行时配置。使用来自32,000多个单元和超过18,700个切换实例的切换配置，我们揭示了基于策略的切换在实践中是如何工作的。我们进一步研究了配置参数如何影响切换性能和用户数据访问。我们的研究展示了关于交接配置的三个要点。1)运营商部署极其复杂和多样化的配置来控制如何执行切换。2)切换配置值的设置合理影响数据性能。3)在为切换过程提供更好的控制粒度的同时，这种多样化的配置也会对性能和效率产生意想不到的负面复合效应。此外，我们通过设备端方法对移动支持的研究为网络运营商、移动用户和研究社区提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the Internet Measurement Conference 2018

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