3GPP Archives | Ericsson Research Blog

Ericsson Research Blog

Research, insights and technology reflections

5G NR release 16 – start of the 5G Evolution

The finalization of the 3GPP release 15 in June this year was a major milestone in many respects. The first 5G New Radio (NR) specifications are complete and commercial deployments will be available by the end of this year. It is also the basis for the continuous evolution of 5G NR technology, spanning across multiple releases, to further improve performance and address new use cases. The first step of this evolution was recently taken when several 3GPP working groups met in Gothenburg, Sweden, to start the work on release 16.

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Accelerating the integration of audio codecs

This year, our Software Engineering student Philip got the chance to travel north to join the Ericsson Research internship program. Here he is learning more about audio coding in a project aimed at integrating new audio codecs into different platforms.

Students from many different fields join Ericsson Research for internships or thesis work. You could be next. Follow our blog to learn about the students at Ericsson Research this summer.

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Exploring how to build standards for Virtual Reality

Virtual reality (VR) has quickly become a household term. There are lots of gadgets and apps that let you take control of your viewing experience by letting you watch a film clip in any direction in a head-mounted display or simply by moving your phone or tablet. However, since most of these apps define their own vertical, content has to be adapted for each of them. This also means that many players are motivated to find common ground and define relevant standards for VR content delivery and consumption.

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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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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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Developing mmWave mobile radio interface

mmWave mobile communication is challenging due to harsh radio propagation conditions and severe hardware impairments that are experienced at extremely high carrier frequencies and large signal bandwidths. Ericsson Research, in partnership with leading research organizations in Europe, has led the development of radio interface for mmWave mobile communications. Let’s have a look at this innovative design.

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Post-quantum cryptography in mobile networks

Work on cryptography in cellular networks technologies, such as 5G, is driven both in 3GPP and in IETF. Post-quantum cryptography is one important field in this area. Ericsson actively participates in this work, and we recently presented a well-received paper in 3GPP describing the impact of quantum computers and how they affect cellular networks.

This blog post is a slightly revised reproduction of the paper.

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Robust scrambling for NB-IoT broadcast channels

Narrowband Internet of Things (NB-IoT) is a new cellular technology designed to provide wide-area coverage for IoT. It was introduced in 3GPP Release 13 and is expected that many commercial NB-IoT networks will be launched in 2017. Here, on the Ericsson Research blog, we shall provide a brief explanation for the rationale of a change request (CR) approved in 3GPP RAN meeting #75 in March 2017 for the enhancement of the robustness of NB-IoT broadcast channels when it comes to inter-cell interference – when NB-IoT is deployed inside a frame-synchronized LTE network. The approved CRs are mandatory and non-backward compatible. Introducing such CRs is possible considering that NB-IoT deployments had not yet occurred on a widespread basis. The approved CR preserves robust NB-IoT performance when deployed in an LTE network that also supports features such as Multicast-Broadcast Single-Frequency Network (MBSFN) or Positioning Reference Signal (PRS), which require frame-synchronization across cells to ensure good performance in practice.

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