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By | April 30, 2020 | 405 views
 

Interactivity test: Concept and KPIs (part 2/3)

In the first part of this series, we discussed how the focus of QoE measurements in 5G networks shifted to measuring the quality of actively used services and introduced the concept of interactivity. We have defined the interactivity of a network as the measurable continuity and latency of a given bit rate. Now, we will look into interactivity measurements, traffic…

 
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By | April 14, 2020 | 584 views
 

Interactivity test: QoS/QoE measurements in 5G (part 1/3)

Most users have the impression that 5G will just provide more data rate. This is true; the transport capacity will increase due to the additional spectrum made available to operators through the licensing of 5G frequencies. This will surely improve the download experience, especially in heavily loaded areas. However, 5G is more than just more data rate. The main advantage…

 
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By | December 28, 2017 | 4,480 views
 

NB-IoT: How to test quality of service in NB-IoT networks (part 4)

NB-IoT networks are designed for machine-to-machine communication, which generally requires low data rates. When building NB-IoT networks, it is essential to test the performance of new implementations to ensure that the required network quality is available. Tests to measure the quality of service (QoS) in NB-IoT networks are typically performed with NB-IoT modules that are controlled by software. Our measurement…

 
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By | July 6, 2017 | 2,141 views
 

Device integration: detective work for mobile network testing solutions

Have you ever thought about device integration? Surely, you’ve heard or read about it; for example, in our recent press release announcing the complete integration of the Samsung Galaxy S8 smartphones into our product portfolio of mobile network testing solutions. Didn’t you then wonder what exactly device integration means? Unlike competitors’ claims, device integration is everything but simply connecting user and…

 
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By | February 2, 2017 | 2,117 views
 

What different models for predicting visual quality exist? What models are applicable for which test cases?

In a previous blog entry about the challenges of mobile video services, we discussed video quality as a perceived metric and how it can be measured subjectively in viewing sessions. In this post, we will take a closer look at automated video quality measurement methods, often called objective measurements, which are applied in real field video quality measurements. An objective…

 
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By | December 17, 2016 | 1,099 views
 

How system design enhances the quality and reliability of measurements

Analyzing quality of experience (QoE) and quality of service (QoS) is like shooting at a moving target: in constant flux and affected by a myriad of variables – both known and unknown. Undeniable key factors affecting end-user experience, however, include the network (e.g. the capacity), the location (i.e. the placement of the device, e.g. indoors or outdoors, stationary or moving,…

 
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By | November 24, 2016 | 1,163 views
 

Challenges of mobile video services for network operators

Mobile video services by far demand the biggest chunk of data in today’s mobile networks. According to the Cisco Visual Networking Index (VNI) Forecast 2016, by 2020, video services will account for 75% of all data consumption. The performance of video services has a large influence on customer satisfaction. For the mobile network operator, the decision to deliver higher or…

 
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