Question: In an LTE shared network with CDMA2000 interworking, how do UEs that do not support per-PLMN signaling interact with CDMA2000 networks in relation to their Registered PLMN (RPLMN)?
Option 1: Each interacts with a different CDMA2000 network based on its RPLMN.
Option 2: All interact with the same CDMA2000 network, regardless of their RPLMN.
Option 3: The interaction is determined by parameters in SIB1 specific to each UE's RPLMN.
Option 4: Such UEs are not supported for CDMA2000 interworking in LTE shared networks.
Explanation: This is because all UEs not supporting per-PLMN signaling inter-work with the same CDMA2000 network, independent of their Registered PLMN (RPLMN), ensuring a unified interaction protocol for these devices despite varying RPLMNs.