Ericsson Research Blog

Research, insights and technology reflections

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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A changing perception of Ericsson – Summer in the Labs

After this summer’s internship in one Radio research department, Simon is impressed by the accomplishments and impact Ericsson has on 5G and IoT standards.

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 during the summer 2017.

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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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5G for latency-critical IoT applications

5G not only promises increased data rates but also targets new use cases important to the IoT ecosystem. Therefore, one of its distinguishing features will be the provision of low-latency data communication for machine type applications. We are investigating the use of 5G for latency-critical IoT applications in the collaborative research project, Fast Wireless, a German government funded initiative involving large and small companies, research institutes and universities.

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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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Enhanced 4G LTE coverage for Machine-Type Communications and Internet of Things

Support for Machine-Type Communications (MTC) and Internet of Things (IoT) in cellular networks is being drastically improved with the recent launches of products based on 3GPP Release 13. Improvements have been introduced in both 2G GSM networks and 4G LTE networks as well as in the form of a new radio interface optimized for narrow frequency band allocations. These are referred to as EC-GSM, LTE-M and NB-IoT, respectively. In this blog post we focus on the 4G LTE improvements for MTC/IoT known as LTE-M in the areas of low device cost, long battery life, and deep coverage.

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