Question: In E-UTRAN, how does an E-SMLC (Evolved Serving Mobile Location Centre) interact with an eNodeB to provide location assistance data for broadcasting, considering the signalling access?
Option 1: Directly, via a dedicated interface between the E-SMLC and all eNodeBs within the network.
Option 2: Via any MME (Mobility Management Entity) that has signalling access to both the E-SMLC and the target eNodeB.
Option 3: Through a centralized node that manages all location services, which then forwards the data to relevant eNodeBs.
Option 4: Using broadcast channels from the E-SMLC directly to UEs, bypassing eNodeBs for location assistance.
Explanation: This is correct because signalling access between the E-SMLC and eNodeB for providing location assistance data is facilitated through any Mobility Management Entity (MME) that has established signalling connections with both the E-SMLC and the targeted eNodeB, ensuring flexibility and reachability across the network.