Question: When a User Equipment (UE) is camping on an E-UTRA cell connected to the Evolved Packet Core (EPC), what does the UE do with regards to Access Class or ACDC category related cell access restrictions during cell selection for camping?
Option 1: The UE strictly adheres to these restrictions, rejecting cells where its Access Classes or ACDC categories are not allowed.
Option 2: The UE partially considers these restrictions, only applying them if the cell's signal strength is above a certain threshold.
Option 3: The UE ignores these restrictions when selecting a cell to camp on but checks them during RRC connection establishment.
Option 4: The UE always prioritizes cells with no access restrictions over those with restrictions, regardless of signal strength.
Explanation: According to the specified behavior for UEs camping on E-UTRA connected to EPC, the UE shall ignore Access Class or ACDC category related cell access restrictions when selecting a cell to camp on. However, these restrictions are checked by the UE when starting the RRC connection establishment procedure. This approach balances accessibility with controlled network access once a connection is being established.