Mobile network testing

Munich 14-Aug-2017

Rohde & Schwarz Mobile Network Testing pioneers NB-IoT field measurements

Rohde & Schwarz Mobile Network Testing is paving the way to NB-IoT by providing the world’s first accurate LTE/NB-IoT coverage measurement solution: via a software upgrade, the R&S ROMES drive test software now also supports NB-IoT coverage measurements with R&S TSMx scanners .

R&S LTE/NB-IoT coverage measurement solution
The world's first LTE/NB-IoT coverage measurement solution featuring R&S ROMES and R&S TSMx scanners

Munich, August 14, 2017 — The Internet of things (IoT) translates into a future where a myriad of devices are connected to the Internet and to each other. Current LTE networks are optimized for delivering high data rates for multimedia applications requiring high bandwidth. Networks for IoT applications, however, will be optimized for highest availability (deep indoor penetration) and lowest battery consumption. For the various NB-IoT applications, good network coverage is required to ensure a proper NB-IoT connection. Unlike human beings, smart meters installed in basements are unable to change position for a better signal.

Rohde & Schwarz Mobile Network Testing now offers a new product for NB-IoT coverage measurements. The new NB-IoT coverage measurement solution is based on the field-proven R&S ROMES drive test software for measuring network quality with scanners and test mobiles in all mobile technologies. In combination with the R&S TSMW, TSMA, and TSME scanners, R&S ROMES offers the first LTE/NB-IoT coverage measurement solution that measures true NB-IoT network coverage.

The NB-IoT radio interface is less complex than legacy LTE, thus ensuring less costly NB-IoT user equipment (Cat-NB1). NB-IoT is a half-duplex mode access, meaning that NB-IoT user equipment can only either receive or transmit; it can never receive and transmit simultaneously, however. Another difference between NB-IoT and LTE user equipment concerns cell reselection: NB-IoT user equipment supports this mechanism only in idle mode. This affects the abilities of NB-IoT user equipment to perform continuous and accurate RF coverage measurements. Consequently, using a scanner is the only viable solution for accurate and comprehensive measurement results. Unlike testing with NB-IoT user equipment, scanner-based testing is passive and captures the measurement data directly from the RF air interface, including receive power levels and carrier-to-interference-and-noise-ratio (CINR).

Hanspeter Bobst, Vice President of Rohde & Schwarz Mobile Network Testing and CEO of SwissQual AG, a Rohde & Schwarz company, says: “With the world’s first LTE/NB-IoT coverage measurement solution, based on field-proven software and hardware products, Rohde & Schwarz Mobile Network Testing further strengthens its technological leadership in mobile network testing. For all our existing customers, we are delighted to ensure investment protection through a simple NB-IoT software upgrade.”

The NB-IoT coverage measurement solution with R&S ROMES and TSMx scanners is part of Rohde & Schwarz Mobile Network Testing’s latest software release.

Rohde & Schwarz Mobile Network Testing was also able to demonstrate the verification of device/network interworking by connecting NB-IoT user equipment to R&S ROMES. Apart from RF tests, this setup provided further metrics such as downlink and uplink latency and throughput, and protocol behavior.

For more information about Rohde & Schwarz Mobile Network Testing solutions for mobile network operators, infrastructure vendors, testing service providers, and regulators, visit the website at http:www.mobile-network-testing.com and the blog at https://blog.mobile-network-testing.com.

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Rohde & Schwarz Mobile Network Testing solutions provide all the hardware, software and resources that the mobile networking industry needs to efficiently deliver better services with higher quality for customers while enabling suppliers to increase the value of their networks and products.

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