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Ericsson Research Blog

Semantic Interoperability for the Internet of Things

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Standards for constrained devices are rapidly consolidating. Semantic Interoperability is the next step in the IoT consolidation and is already happening. In March, the Internet Architecture Board will hold a workshop about interoperability at the application level. We in Ericsson Research will contribute (and host!) – and ask for you to join as well.
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When the bus catches you

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Is a predefined timetable the most efficient way of operating a fleet of different vehicles? Or can we combine several different sources of information to manage public transport in real time?

In this post I’d like to paint a possible picture of the future of public transport, including the technologies that can be applied in realizing it, and I’d like to encourage you, dear reader, to share your comments, opinions and insights on how realistic this vision is!
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Handling mixed workloads for data centers

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Data centers play a significant role in a networked society, by providing cloud‐scale computing clusters. These can contain over 10,000 servers per cluster and run tens of thousands of services and applications to fulfill different user demands. The workloads of data centers are often mixed between short‐lived (e.g. in‐memory informational query search), medium‐lived (e.g. analytics batch jobs), and long‐lived service jobs (e.g. streaming, gaming and OS hosting services). An efficient cluster management system is critical for all performance aspects of a data center, and handling mixed workloads is a big challenge for existing solutions.

In Ericsson Research, we are developing a cluster management system for handling mixed workloads, which our preliminary evaluation results show to reduce job response time and improve scheduling throughput while considering security and being large scale and fault-tolerant .
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Internet of Things in mining

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As part of our commitment to industry transformation, we in Ericsson engage in projects in many different industries. Maybe contrary to popular belief, mining is an industry with a lot of potential for transformation. ICT can help mining industries improve productivity, safety, work force satisfaction and environmental impact.

Some time ago we wrote about our joint research project on connected mining but we don’t want to stop there.

At this year’s IPSO Challenge in Silicon Valley – by some called “the world championships in connected things innovation” – a smart rock bolt for use in mining caught widespread attention. This innovative product has been developed by a team headed by Associate Professor Jens Eliasson at Luleå University of Technology (LTU) and proudly mentored by myself.

So, what is a rock bolt and what’s the big deal about connecting it?
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DevOps for Service Providers – next generation tools

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Disruptive telecom concepts like NFV promise agility and high velocity of service innovation and deployment. These requirements call for a novel management paradigm beyond traditional telco workflows and processes. Together with our partners in the EU-FP7-funded UNIFY project, we tackle these challenges by taking inspiration from DevOps ideas widely applied at scale in data centers. Discuss with us our recently released SP-DevOps Toolkit, and how it helps showcase ideas that could usher a next generation of tools for telecom services in software-defined infrastructures.
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Thing-to-Thing Research

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The Internet Engineering Task Force (IETF) has been developing many of the key Internet of Things (IoT) standards over the past years. Now when the first wave of standards has been completed and are being adopted by the industry, new requirements for IoT research, based on the actual use of the standards, have emerged. The Internet Research Task Force (IRTF), an organization working in parallel with the IETF and focusing on longer term research issues, has now chartered a new group, Thing-to-Thing Research Group (T2TRG), to address open IoT research issues.
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Four UE Antennas – Implementation and Expectations

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Carrier Aggregation, 256 QAM and now four downlink receive antennas – providing up to four parallel MIMO streams – are novel features in LTE, introduced by 3GPP to meet the demand of ever increasing data rates.

In this post we will discuss important aspects of migrating the User Equipment from two to four receive antennas in the downlink. We will explain the physical aspects, shed some light on certain important implementation issues, and identify the benefits, both from an operator’s and an end user’s perspective.
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Carrier Wi-Fi – what to expect in the near future

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Wi-Fi comes in many shapes and sizes. It is widely used by consumers and enterprises and in recent years it has become increasingly more popular with mobile operators. The term “Carrier Wi-Fi” – Wi-Fi networks deployed and managed by operators – is nowadays commonplace in telecom lingo. Interest really started growing in 2012 with the launch of Hotspot 2.0, also known as Passpoint. This technology streamlines network access, eliminates the need for user intervention when connecting to Wi-Fi hotspots, and delivers state-of-the-art WPA2 security. Mobile operators are interested in using Wi-Fi to extend their offerings and augment their cellular experience with seamless Wi-Fi connectivity.

What should we expect from Carrier Wi-Fi in the upcoming years?
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