Rohde & Schwarz and MediaTek validate industry's first 3GPP Rel. 17 NTN NB-IoT protocol conformance test cases

07/07/2023

With the successful validation of the industry’s first protocol conformance test cases for 3GPP Rel. 17 NTN NB-IoT, Rohde & Schwarz and MediaTek accelerate adoption of non-terrestrial network-based IoT use cases spanning multiple sectors such as smartphone, consumer, automotive, agriculture, maritime, logistics, and mining. The release and development of these test cases is a major stepping stone for future device certification mandated by industry committees such as GCF and PTCRB.

This first release of NTN NB-IoT protocol test cases is based on 3GPP RAN#5 specifications delivered by ETSI task force MCC160. In detail, the test cases verify the changes of MAC, RLC, and NAS layers, focusing on the device’s ability to transmit GNSS data efficiently, manage multiple TACs, utilize Rel. 17 extended t-reordering, deliver accurate NAS reject causes and responses, handle HARQ within the NTN context under varying DRX configurations, and accurately interpret timing advance from SIB31 contents.

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