-Ran sharing can be applied
to cover a large area in which each operator can cover a part from this
network
-In case there is an overlap area, the UE of operator
B must access the RAN of operator B rather than the LA/cells of operator A.
-To put a rule for this
case, the R5 protocol introduces the concept of shared network area (SNA). A
SNA is an area corresponding to one or more RAs which control the UE access.
-The SNA is configured in
CN whereby The CN provides the SNA ID list which contains the sharing network
areas the UE can access .
-If the RA is part of the
SNA that the UE can access, the UTRAN allows the UE to access. Otherwise, the
UTRAN denies the access.
