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5G Standalone networks don’t have 4G to fall back to. 5G Non-standalone networks are essentially 4G networks with a 5G RAN, so SUCI remains optional and most co
by huslage 1y ago
5G Standalone networks don’t have 4G to fall back to. 5G Non-standalone networks are essentially 4G networks with a 5G RAN, so SUCI remains optional and most core vendors don’t support it.
- lxgr 1y agoThat's not what 5G standalone means, as far as I understand. The network I'm using supports 5G SA in some cells, but my phone definitely still falls back to both 4G and 5G non-SA in some areas where it's not yet available. And even if 5G SA were available everywhere, there's the concern of roaming.
- huslage 1y agoCorrect, your phone needs to actually re-connect between the two networks. It's a whole new session and you can't handover between 5G SA and 5G NSA/LTE networks. There are some configurations that make this not much of an issue, but technically they are totally different networks.
- lxgr 1y agoYou can definitely hand over sessions between 5G and 4G (and by extension 5G NSA, which essentially is 4G from a signaling point of view).
- huslage 1y agoIt's not a handover in the sense that you're actually creating a second connection to a different network. It's more akin to roaming than a handover.