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R&S DSS

Dynamic Spectrum Sharing is a Game Changer

Dynamic Spectrum Sharing (DSS) has emerged as a key part of mobile service providers’ 5G strategy at Mobile World Congress Los Angeles. DSS allows an existing LTE carrier to operate 5G NR and LTE simultaneously – with a simple software upgrade allowing a nice transition to 5G. This is especially critical in the low band where there are not a lot of users so dedicating just 5G usage there would be way too expensive to deploy.


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Featr 5G testing

Testing mmWave equipment for 5G applications

By David Hall, NI

Engineers must be able to utilize test hardware, test sets and 5G waveform generation that can be used in tandem with high-bandwidth IQ waveforms. Additionally, RF transceivers must also undergo extensive testing. Find out how in this posting.


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Process Variations Can Mean Circuit Performance Variations

Modern computer-aided-engineering (CAE) software design tools based on electromagnetic (EM) simulation are quite good at predicting circuit performance using different models. But even the best simulation software can fall short of predicting the effects of some normal circuit fabrication process variations, specifically, deviations in copper plating thickness and how it can affect how conductors are shaped and the resulting performance of edge-coupled circuits. Read some of the variations that can effect your designs.


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Unlicensed Spectrum May Be Critical to 5G

In LTE or 4G, the 3GPP defined a coexistence path for WiFi and LTE using the unlicensed bands, where an LTE subscriber could use the unlicensed 2.4 or 5 GHz bands to supplement data throughput.  Known as LAA or license assisted access, LTE and WiFi can coexist, although it is unclear how many users take advantage of this technology today.  3GPP’s 5G NR-U proposals go way beyond the prior 4G work, and there is additional motivation to take NR-U further. 


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6G

Wireless Cognition, Cones of Silence, Terahertz Communications – 6G Research is Underway!

Professor Theodore S. Rappaport and colleagues at NYU WIRELESS recently published a new article entitled “Wireless Communications and Applications Above 100 GHz: Opportunities and Challenges for 6G and Beyond,” outlining the challenges and possible solutions for future communications using frequencies from 100 GHz to 3 THz. Read this summary of their findings.


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GaN

Status of GaN Market and Major Players

Yole Développement (Yole) just published a new report on the GaN market. According to Yole, the overall GaN RF market is expected to reach USD 2 billion by 2024, driven by two main applications: telecom infrastructure and defense as noted by Ezgi Dogmus, PhD. Technology & Market Analyst at Yole Développement (Yole).


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