3GPP test specifications: TS 36.523 (LTE), TS 38.523 (NR) conformance

The NR Conformance Spec: TS 38.523

TS 38.523 is the master NR conformance test specification. Part 1 covers NAS/RRC protocol tests, Part 2 covers protocol performance (timer accuracy, measurements under fading), and Part 3 covers multi-RAT interworking (LTE-NR handovers, EN-DC).