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By | September 12, 2018 | 311 views
 

5G NR network rollout is now – let’s test! (part 4)

3GPP Release 15 specifies the initial 5G standardization framework of the radio access network called 5G New Radio (5G NR). The standard contains a high degree of flexibility in radio parameters which complicates network measurements. However, Rohde & Schwarz has already conducted measurements in pre-commercial 5G NR trial networks with our pre-launch 5G NR network measurement solution. We gained interesting…

 
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By | August 29, 2018 | 459 views
 

5G: first independent 5G test network benchmark study (part 3)

Signals Research Group trusts the prototype measurement system designed by Rohde & Schwarz to meet the aggressive timeline of early 5G adopters. The US-based research consultancy used the R&S®TSMA autonomous drive test scanner for their independent 5G test network benchmark study to collect downlink performance metrics for the Beam Reference Signals (BRS), including RSRP, CINR, RSRQ, PCI, etc., of 28 GHz…

 
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By | August 10, 2018 | 701 views
 

NB-IoT network insights through MIB/SIB demodulation

Our scanner-based solution to measure coverage in NB-IoT networks pioneered NB-IoT field measurements in 2017. Since then, thousands of kilometers have been driven and walked in order to collect and analyze data from all available operators and cells in an NB-IoT network. Numerous NB-IoT field engineers shared their experiences, providing us with valuable feedback. This post summarizes our customers’ latest…

 
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By | June 12, 2018 | 1,085 views
 

5G: initial 5GTF coverage measurements (part 2)

The US operator Verizon Wireless targets fixed wireless access (FWA) in the 28 GHz frequency band. With partners, they created a pre-5G specification called 5G Technical Forum (5GTF). The business case depends on the number of households that can be connected to a certain number of base stations and still provide a suitably high data throughput. For the required signal…

 
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By | May 22, 2018 | 1,042 views
 

5G: the role of mobile network testing on the path to 5G (part 1)

Everyone is talking about 5G. Long before commercial 5G services are even available, a myriad of articles, reports, presentations and speeches have been made public – creating a big buzz and high expectations in the new standard. What’s the role of mobile network testing on the path to 5G? How can scanner measurements help operators pave the way to the…

 
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By | December 28, 2017 | 2,205 views
 

NB-IoT: how to test quality of service in NB-IoT networks (part 4 of 6)

NB-IoT networks are designed for machine-to-machine communication, which generally requires low data rates. When building NB-IoT networks, it is essential to test the performance of new implementations to ensure that the required network quality is available. Tests to measure quality of service (QoS) in NB-IoT networks are typically performed with NB-IoT modules that are controlled by software. Our measurement software…

 
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By | September 4, 2017 | 2,430 views
 

NB-IoT: field report with results from NB-IoT UE measurements (Part 3 of 6)

After the overview of IoT technologies with a focus on NB-IoT and the discussion about why scanners are a must for NB-IoT coverage measurements, part 3 of this blog series is a field report describing key results that can be obtained by using NB-IoT user equipment as data collection tools. For this, we connected pre-commercial NB-IoT modules and modems to…

 
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By | July 20, 2017 | 3,185 views
 

NB-IoT: scanners are a must for coverage measurements (part 2 of 6)

In part 1 of our series about NB-IoT, an “Overview of Internet of Things technologies with a focus on NB-IoT”, we described typical use cases and current technologies pertaining to the Internet of Things (IoT). We also identified that networks for IoT applications will be optimized for highest availability, particularly with regard to IoT applications under extreme receive conditions such…

 
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By | June 22, 2017 | 3,020 views
 

NB-IoT: Overview of Internet of Things with a focus on NB-IoT (part 1 of 6)

Use cases for the Internet of Things (IoT) are virtually unlimited. They include smart homes and buildings, wearables and smart fabrics, healthcare, telematics, smart cities, smart factories, and so on. This post provides an overview of current technologies with a focus on IoT developments made by the 3rd Generation Partnership Project (3GPP).  When it comes to mobile network testing in…

 
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