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Ericsson Research Blog

Research, insights and technology reflections

The cellular Internet of Things – technologies, standards and performance

With each new generation, cellular systems have evolved to provide support for new services and applications. Currently the fifth generation (5G) radio access network is under development and an important pillar in this project is support for the Internet of Things (IoT). Ericsson has since 3GPP Release 13 contributed to this development with the design of three new technologies for support of massive Machine-Type Communications (mMTC). mMTC provides wireless connectivity for large number of network-enabled devices. This work is covered in detail in the recently published book ‘Cellular Internet of Things – Technologies, Standards and Performance’ authored by me and my colleagues Mårten Sundberg, Y.-P. Eric Wang, Johan Bergman and Joachim Sachs.

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The fundamentals of highly available cloud services

Companies claim that their cloud services are accessible by users anywhere and anytime. But are they really available 24 hours a day, 365 days per year? There’s a study from Ponemon institute, showing that the average cost of a datacenter outage is around USD 740,357 – a significant loss for both cloud providers and users. How much interruption of this sort can users tolerate? Which are the main sources of failure in a data center? How much extra redundancy is needed? What are the existing mechanisms for offering the desired level of service availability?

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Cloud 3.0: Making Cloud Easy

We envision Cloud 3.0 as a platform making it easy for developers to both deploy and develop directly in the datacenter and for datacenter managers to administer, for delivering services in compute clusters of all sizes – from large centralized datacenters to clusters of 3 to 5 machines in a radio base station. Such increased usability and scalability should encourage wider utilization of the cloud computing model. Our vision is for cloud computing to become an affordable, secure, and performant information technology utility that is ubiquitously available and can be successfully deployed to digitalize governments, industries, and society. We believe Cloud 3.0 will play a critical role in this vision.

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LTE-NR tight-interworking and the first steps to 5G

For 5G systems to start delivering value immediately, initial components of the New Radio (NR) technology need to satisfy both urgent market needs – by assisting LTE radio – and the longer-term requirements of 5G. In this context, LTE-NR tight-interworking is one of the most important technology components.

In this blog post, we will explain the concept and describe the key features now being standardized by the 3GPP.

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Managing drone air traffic with network services

In our previous post, we examined the possibilities and challenges of radio connectivity for drones. In our research, we are also looking at various services that the network can provide. Our approach is to design our reference architectures by taking the design of the Unmanned Aircraft Systems Traffic Management (UTM) architecture from NASA and the Federal Aviation Administration (FAA) in the US and connecting it to the mobile network services defined by 3GPP.

In this post we will explore a few of the possible services.

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How mobile networks can support drone communication

Mobile networks are uniquely positioned to improve the safety of drone operations and also to enable beyond visual line-of-sight applications. Our particular interest is in low altitude drones, which fly from around 200-400 feet up to 1,000 feet, because this is where existing terrestrial mobile networks are able to provide coverage. We are focusing our work on two aspects:

  • Radio connectivity for drones in order to understand what the issues are, and how we can solve them.
  • How we can support Unmanned Aircraft System (UAS), Traffic Management (UTM) or simply drone traffic management with mobile network services.
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