Question: In E-UTRAN, how does a User Equipment (UE) typically retrieve cdma2000 1xRTT system information for handover preparation from E-UTRAN to cdma2000 1xRTT?
Option 1: By sending a request on the E-UTRAN Dedicated Channel (DCH) only during RRC_CONNECTED mode.
Option 2: Through broadcast on E-UTRAN BCCH, which the UE monitors in both RRC_IDLE and RRC_CONNECTED modes.
Option 3: Exclusively via dedicated signalling messages initiated by the E-UTRAN upon handover necessity detection.
Option 4: By performing a random access procedure on the cdma2000 1xRTT network directly.
Explanation: This is correct because the UE monitors the E-UTRAN Broadcast Control Channel (BCCH) in both RRC_IDLE and RRC_CONNECTED modes to retrieve necessary cdma2000 1xRTT system information for handover preparation. While dedicated signalling can also provide this, BCCH monitoring is the primary method described for general UE behavior.