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Analysis of audio and video quality of voice over LTE (VoLTE) call
International Journal of Information Technology Pub Date : 2020-04-25 , DOI: 10.1007/s41870-020-00455-3
Smita Avinash Lonkar , KT V. Reddy

LTE is a broadband wireless communication standard, including a voice service that is upgraded to 5 G, with the core network technology. In recent years Voice over Internet Protocol (VoIP) became more accessible to customers because of the increasing competence of Internet services and the development of voice call applications. According to its increased capacity, data rates, and lower latency, LTE meets the demand for high data rates for many mobile users. Voice over LTE (VoLTE) is the Cellular network system for transmitting voice over TCP. To network operators or system manufacturers, the quality of service (QoS) assessment of VoLTE coverage is essential. This article presents the evaluation analysis of video quality QoS Key Performance Induction (KPI) and the POLQA Mean Audio Performance Rating in the VoLTE application. This measurement can be done for various video quality analysis display formats and packeting mode. Audio quality analysis in the VoLTE call is done by measuring the statistical and distribution information for Uplink and Downlink Mean opinion score (MOS). MOS for video quality assessment (Average) is conducted. Graphical analyses of the video rating distributions verify the calculated QoS KPIs for video calls. The calculation analysis finishes with the verification of the option in VoLTE Call for video codec screen formats and packeting mode. Audio performance can be defined as the audio quality of the test device by the visual display of Downlink and Uplink. Such knowledge will help software manufacturers on the IMS stack to enhance video quality and identify audio output systems on MOS basis. In this, research discuss VoLTE and Video over LTE (ViLTE) performance issues. In the ITRI VoLTE test environment, we analyse VoLTE voice quality in measurement experiments. We will also pose ViLTE Call with a check in a FET industrial mobile network in multimode or multi-band interworking. Our study provides information on the quality of the VoLTE and ViLTE services for operators.



中文翻译:

LTE(VoLTE)通话的音频和视频质量分析

LTE是一种宽带无线通信标准,其中包括通过核心网络技术升级到5 G的语音服务。近年来,由于Internet服务能力的增强和语音呼叫应用程序的发展,Internet协议语音(VoIP)变得对客户更易访问。根据其增加的容量,数据速率和较低的延迟,LTE满足了许多移动用户对高数据速率的需求。LTE语音(VoLTE)是用于通过TCP传输语音的蜂窝网络系统。对于网络运营商或系统制造商来说,VoLTE覆盖范围的服务质量(QoS)评估至关重要。本文介绍了VoLTE应用中视频质量QoS关键性能归纳(KPI)和POLQA平均音频性能等级的评估分析。可以针对各种视频质量分析显示格式和打包模式进行此测量。通过测量上行链路和下行链路平均意见得分(MOS)的统计信息和分布信息,可以完成VoLTE呼叫中的音频质量分析。进行视频质量评估(平均)的MOS。视频评级分布的图形分析验证了视频通话的计算出的QoS KPI。计算分析结束于对视频编码解码器屏幕格式和打包模式的VoLTE呼叫中的选项进行验证。音频性能可以通过可视化的下行和上行定义为测试设备的音频质量。这些知识将帮助IMS堆栈上的软件制造商提高视频质量并基于MOS识别音频输出系统。在这个 研究讨论了VoLTE和LTE视频(ViLTE)性能问题。在ITRI VoLTE测试环境中,我们在测量实验中分析了VoLTE语音质量。我们还将通过多模式或多频带互通的FET工业移动网络中的Check来提出ViLTE Call。我们的研究为运营商提供了有关VoLTE和ViLTE服务质量的信息。

更新日期:2020-04-25
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