The main difference of NSA (Non-Standalone Architecture) and SA (Standalone Architecture) is that NSA anchors the control signaling of 5G Radio Networks to the 4G Core, while the SA scheme connects the 5G Radio directly to the 5G core network , and the control signaling does not depend on the 4G network at all.
Read moreIs NSA an mmWave?
According to Chip vendor Qualcomm, all 5G mmWave deployments in the world are currently (March 2021) using 5G non-standalone (NSA) configuration .
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