As a continuation of the earlier video, Arnd Sibila explains in more detail how video quality can and should be tested using J.343.1. As a very robust algorithm, J.343.1 takes into account all video characteristics into a single score; e.g., coding, compression, rescaling artifacts, perceived freezing, etc.
Radio Access Networks (RAN) have evolved considerably from mobile access networks of the past and are helping to drive the “densification” of mobile networks allowing mobile operators to keep up with the heavy traffic demands brought on by 4G/LTE. In this webinar, we look at the forces behind the evolving wireless access network and the… Read more »
In this webinar, Rohde & Schwarz will present a technical overview of carrier aggregation and specific examples of the most important functional and performance tests. This webinar will provide cell site engineers and technicians with the information they need to test, optimize, and troubleshoot carrier aggregation in the field.
This webinar provides a practical introduction into the tools and techniques most commonly used in mobile network testing. Topics include cable and antenna testing, RF measurements, signal demodulation, voice and data performance, spectrum clearing and interference hunting, as well as general troubleshooting methodologies. Real-world examples will be used.
The rapid spread of wireless technologies has been accompanied by an increase in interference issues. Timely and efficient resolution of these issues is critical in avoiding service interruptions and in guaranteeing quality of service. This webinar will discuss common sources and types of interference, fundamentals of radiolocation/direction finding, general suggestions/best practices for the engineer in… Read more »
Direction finding (or radiolocation) is an essential part of interference hunting and spectrum management activities. This presentation provides a technical introduction to the area of radio direction finding and discusses the fundamental principles of direction finding in the most common DF methodologies, including manual direction finding, Doppler, time difference of arrival, Watson-Watt, and correlative interferometry.… Read more »
The rapid spread of wireless technologies has resulted in an increase in interference issues. In today’s highly competitive mobile market, timely and efficient resolution of these issues is critical for operators to deliver a high quality of experience. This presentation discusses the impact of interference on operators, common sources and types of interference, fundamentals of… Read more »
Although many types of interference are common to all radio access technologies, the combination of new frequency allocations and new modulation types have created unique interference challenges for LTE deployments in the United States. This webinar uses real-world examples to discuss the most common sources of interference found in LTE networks today (such as bidirectional… Read more »
LTE is the next step in the user experience, enhancing more demanding applications such as video streaming, video conferencing, video chatting, advanced gaming and professional services. This webinar will illustrate how to establish and test the LTE video transmission link, and how the quality of the video transmission links can be measured under real-life propagation… Read more »
This webinar will illustrate the impact of applications installed on a smartphone or tablet PC in terms of the number of IP connections, list of protocols including protocol name resolution, TCP performance and data volume statistics. It further outlines how QoE can be optimized by applying IP analysis and protocol statistics functionality using leading test… Read more »