ENDC 3X UL Path direction

Hi All,

After SN Addition in NSA setup (ENDC 3X), what would be the direction of data in UL direction if my MeNB is in good Radio condition:

UE >MeNB>SgNB>SGW (via SPLIT SCG bearer)
UE>MeNB>SGW (via MCG bearer)

For your regular data/APN: UE >MeNB>SgNB>SGW (via SPLIT SCG bearer)
For your IMS APN: UE>MeNB>SGW (via MCG bearer)