Ericsson Research Blog

Research, Insights and Technology Reflections

Indoor Positioning Enhancements in LTE Standardization

The positioning of terminals in indoor scenarios with cellular networks has attracted significant interest in recent years. A 3GPP Release 13 study item disclosed the extent to which LTE can meet specific requirements for indoor positioning and identified possible enhancements. A set of the most important enhancements have now been standardized in recently finalized 3GPP Release 13 and 14 work items.

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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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Smart self-returning tool rental through IoT

Digitalization is transforming a wide range of industries and the construction tool rental business is no exception. Ericsson recently partnered with Europe’s second-largest rental services company specializing in construction machinery and the global leading producer of outdoor power products to evaluate the feasibility and transformative potential of Internet-of-Things, cloud and data analytics for this industry.

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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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Service Provider DevOps: Evolving NFV deployment and operations

The virtualization possibilities of technologies like SDN and NFV are transforming telecom service provisioning and deployment. Evolving carrier-grade operations at the same pace is, however, still a struggle. With SP-DevOps, the concept developed with partners in the EU-FP7 UNIFY project, we seek to tackle management challenges related to the increased agility and service velocity offered by software-defined telecom infrastructures. In this post, we share insights we gained since the launch of the SP-DevOps toolkit, along with an assessment of the overall SP-DevOps concept.

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Workshop on Development Aspects of Intelligent Adaptive Systems (DIAS) 2017

Distinguishing characteristics of the life-cycle phases of adaptive software including design and implementation were explored in the workshop on Development Aspects of Intelligent Adaptive Systems (DIAS 2017). The workshop clearly contributed to bringing together the small but bourgeoning intelligent systems diaspora in India.

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