How voice calls affect data in operational LTE networks
How voice calls affect data in operational LTE networks
复制标题
语音通话如何影响运营 LTE 网络中的数据
DOI：
10.1145/2500423.2500429
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Songwu Lu
中科院分区：
文献类型：
--
作者：
Guan;Chunyi Peng;Hongqi Wang;Chi;Songwu Lu
在当前的蜂窝网络中，语音和数据都是不可或缺的业务。在这项工作中，我们研究了运营LTE网络中语音和数据的相互作用。我们评估了流行的基于CSFB的语音服务如何影响4G LTE网络中基于IP的数据会话，反之亦然。我们的发现表明，它们之间的干扰是相互的。一方面，语音呼叫可能会导致吞吐量下降、失去4G连接，以及数据会话的应用程序中止。另一方面，用户在打开数据访问时可能会错过语音来电。最根本的问题是，电路交换语音和分组交换数据的信令和控制通过LTE电话客户端具有依赖性和耦合效应。我们还对已确定的问题提出了解决方案。
Both voice and data are indispensable services in current cellular networks. In this work, we study the inter-play of voice and data in operational LTE networks. We assess how the popular CSFB-based voice service affects the IP-based data sessions in 4G LTE networks, and visa versa. Our findings reveal that the interference between them is mutual. On one hand, voice calls may incur throughput drop, lost 4G connectivity, and application aborts for data sessions. One the other hand, users may miss incoming voice calls when turning on data access. The fundamental problem is that, signaling and control for circuit-switched voice and packet-switched data have dependency and coupling effect via the LTE phone client. We further propose fixes to the identified issues.