The Signals Research Group (SRG) carried out an independent benchmark study of 3GPP-based IoT devices in collaboration with the H2020 EU TRIANGLE Project and the Connectivity Services Section at Aalborg University. In order to do this, the power consumption and energy requirements of Cat M1 and Cat NB1 modules and devices were analysed in a range of network conditions and usage scenarios. LTE Cat M1/NB1 is a cellular technology specifically designed for the needs of applications targeting the Internet of Things (IoT) or machine-to-machine (M2M) communications and part of the same 3GPP release 13 standard that defined narrowband IoT.

TRIANGLE performed the tests on behalf of SRG for this analysis, using the TRIANGLE testbed.
The voltage and current of various devices were measured with a high sampling rate. The testing allowed the battery life of the devices under test to be estimated with great accuracy. Additionally, the tests enabled the energy budget to be allocated to each IoT state (PSM, DRX, Synch, etc.). The results showed the battery life of devices exceeded or fell short of the 3GPP target threshold of 10 years. A preview or the full 3GPP IoT benchmark study is available.

TRIANGLE performs tests in Signals Research Group 3GPP IoT device benchmark study

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