I have a doubt about the behavior of UE when NR is disabled on it.
- UE attached to NSA network (dcnr=1 in attach request), so there is no NR restriction on network side.
- from settings menu of smartphone, RAT is forced to 4G.
Now which is the expected behavior?
- UE sends TAU request with dcnr=0
- UE reattaches to 4G with dcnr=0
(and viceversa, when 5G is enabled on UE forced to 4G, it has to send attach or TAU with dcnr=1?)
In which 3GPP specification can I find this?
I found TS 24301, but there are not specific informations about this.
Thank you for your support!