Which reference point is used between the UTRAN and serving gateway for user plane
tunneling when a direct tunnel is established?
A.
S12
B.
S5
C.
S4
D.
S8a
Which reference point is used between the UTRAN and serving gateway for user plane
tunneling when a direct tunnel is established?
Which reference point is used between the UTRAN and serving gateway for user plane
tunneling when a direct tunnel is established?
A.
S12
B.
S5
C.
S4
D.
S8a