Question: To facilitate faster CS fallback in EPS for overlapping target RAT's coverage, what can be achieved by configuring the E-UTRAN cell's TAI to align with the LA boundary of the target RAT and utilizing the MME's knowledge of TAI-LA mapping?
Option 1: Reduced signaling overhead during intra-RAT handovers
Option 2: Improved accuracy in UE location estimation for emergency services
Option 3: Allocation of a Location Area to the UE that matches the overlapping target RAT's coverage, enhancing fallback procedure speed
Option 4: Increased capacity for concurrent CS fallback procedures within the same TA
Explanation: Aligning the E-UTRAN cell's TAI with the LA boundary of the target RAT and utilizing the MME's knowledge enables allocating a Location Area to the UE matching the overlapping target RAT's coverage, crucial for speeding up the CS fallback procedure.