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Internet of Things SoC Characterization

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RF-SoC for the Internet of Things die foto.


By the end of the decade billions so called Internet-of-Things (IoT) devices will be connected to the Internet. IoT nodes can range from electrical energy meters to tiny positioning nodes connected to a network. While legacy 2G GSM has long been used for cellular IoT applications, recent advancements in the 3GPP standardization organization address the growing need for IoT modems. In particular, the Extended Coverage GSM for IoT (EC-GSM-IoT) standard with 20 dB coverage increase and low-power features got finalized in 2016 [1]. Current research at the institute led to a prototype of an EC-GSM-IoT modem RF-SoC in autumn 2016. The SoC includes RF circuitry and a digital baseband ASIC for 2G EC-GSM-IoT, GSM, GPRS, EGPRS, and EGPRS2A operations.

Project Description

While some basic measurements have been made with the prototype SoC, extensive measurements include:

  • Power consumption for various operation modes
  • BLock Error Rate (BLER) curves under challenging channel conditions (including strong interferes)
  • RF characterization, e.g. Noise Figure (NF) measurements over various frequency bands

The institute counts with state-of-the-art protocol analyzers, channel emulators, and RF equipment for proper measurements. During this project, the student will setup and perform numerous measurements for proper SoC characterization. This is a perfect opportunity to get to know the latest IoT standards as well as heavy duty measurement hardware.

Status: Available

Looking for interested students (Semester or Master Thesis)
Supervision: Benjamin Weber


10% Theory
90% Measurements (Protocol Analyzer, C-Code, Matlab)




Qiuting Huang


[1] Cellular system support for ultra-low complexity and low throughput Internet of Things (CIoT), 3GPP TR 45.820 v13.1.0, 2015.