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By | January 12, 2017 | 862 views
 

Identifying passive intermodulation

Passive intermodulation is nothing new. It has been an issue since the first commercial networks. In GSM, for example, whenever a PIM issue was present, network operators could easily re-allocate frequencies without affecting the service. With 3G and 4G, however, frequency re-allocation is no longer possible. PIM problems have to be dealt with. They have become even more important as…

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By | January 5, 2017 | 1,222 views
 

Searching vs browsing: why the SmartMonitor is smarter

Good navigation and quick access to features are vital for the success of any web application. On the Internet, browsing is the primary navigation method on most sites, but as content grows it can become quite difficult to solve UX (user experience) challenges with a structured navigation alone. Creators and designers – whether of websites or other software user interfaces…

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By | December 29, 2016 | 7,527 views
 

Smart macro network enhancements: 4×4 MIMO

The various macro network enhancements available today offer a cost-efficient and smart approach for capacity increase in mobile networks. In the first part of this series, we provided an overview of the hardware-related capacity enhancing features and discussed carrier aggregation in detail. The second part of this series discusses higher order MIMO antenna configurations, particularly 4×4 MIMO. The potential of…

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By | December 21, 2016 | 1,262 views
 

Evaluating visual quality and video MOS based on subjective perception

Video services are very popular and so is their use today in various services and media. YouTube and Netflix are merely the pioneers in video streaming; many other services have followed. Broadcasting stations move more and more content online, videos are shared via social media, and peer-to-peer applications are on the rise; for example, video chat services (e.g. Skype), or…

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By | December 19, 2016 | 519 views
 

Harmonizing user interfaces: how to avoid user interface fragmentation (part 1 of 3)

User interface (UI) fragmentation is a problem that many large companies face when their products are created by different teams. Different teams may have different tendencies and preferences, the products may use different technology stacks and the applications may use different frameworks. The results are often fragmented and inconsistent user interfaces. The higher the fragmentation across your products, the higher…

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By | December 18, 2016 | 707 views
 

How phone design affects system design

In our introduction to how system design enhances the quality and reliability of measurements, we hinted at a myriad of key factors that have an effect on end-user experience, one of them being the device itself and the technologies it supports. In this post, we will look at the evolution of phone design and how it impacts the engineering and designing…

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By | December 18, 2016 | 636 views
 

Suspecting PIM issues in your network? Let us help you find the root cause

More subscribers and higher data rates translate into a constant strain on networks, no matter where. But what could have happened when technicians are notified of low performance yet cannot find any defective components at the BTS site? The answer may be: passive intermodulation, or PIM. And, the source of this PIM problem could be a tiny metal flake in…

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By | December 17, 2016 | 430 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 | December 16, 2016 | 863 views
 

Smart macro network enhancements: carrier aggregation

The popularity of app services among smartphone users poses a serious challenge to mobile operators: data consumption is soaring; and with an expected 10-fold increase in the next 5 years, investments to merely transfer the sheer amount of data are inevitable. So, how can network operators best address these increasing network capacity and performance demands? Carrier aggregation is one option….

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