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By | May 22, 2019 | 496 views
 

NB-IoT field test: Measuring NB-IoT underground

Singapore was among the first countries to deploy a nationwide narrowband Internet of Things (NB-IoT) network in 2018. In this blog post, we will share an NB-IoT field test procedure, including the results from NB-IoT measurements underground. “The Internet of Things is a key technology area for growth which will drive Singapore’s Digital Economy for a Smart Nation. We encourage…

 
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By | November 21, 2018 | 1,260 views
 

NB-IoT: how to find NB-IoT carriers in the spectrum (part 6)

Identifying NB-IoT carriers with a pure RF power scan is very difficult and sometimes impossible. After describing the benefits of NB-IoT MIB/SIB demodulation in the previous NB-IoT post, this post discusses the challenges in identifying NB-IoT carriers in the spectrum and offers solutions. The extended Automatic Channel Detection (ACD) feature finds and identifies NB-IoT carriers automatically and display the findings…

 
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By | September 12, 2018 | 2,198 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 commercially available 5G NR network measurement solution. We gained…

 
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By | August 29, 2018 | 1,711 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 | 2,453 views
 

NB-IoT network insights through MIB/SIB demodulation (part 5)

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 | July 4, 2018 | 10,741 views
 

How 4×4 MIMO can boost your mobile network

The inexorable demand for more mobile data volume requires ever-higher capacities in radio mobile networks. Network densification and the introduction of new frequencies could be solutions, but both are time-consuming and cost intensive. The implementation of higher-order MIMO features into existing radio networks, however, will boost peak data rates throughout the network and deliver an additional capacity gain. 4×4 MIMO…

 
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By | June 12, 2018 | 2,272 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 | December 11, 2017 | 1,601 views
 

HetNets/Small cells: verifying indoor deployments (part 4 of 4)

HetNets and small cell indoor deployments are an effective means to deal with the exponentially increasing data consumption in mobile networks. After the careful planning and actual installation of a new small cell network, it’s time to verify the commissioned indoor deployments and ensure quality of experience (QoE). Both are best achieved with a commercially available smartphone, designed for reliable…

 
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By | September 4, 2017 | 3,379 views
 

NB-IoT: field report with results from NB-IoT UE measurements (part 3)

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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