Question: In a non-collocated RCLWI (Radio over WiFi with LTE-WLAN Aggregation) scenario, what is the interface used for connecting the eNB (Evolved Node B) to one or more WT (Wireless Termination) logical nodes?
Option 1: S1 Interface
Option 2: Xw Interface
Option 3: S5/S8 Interface
Option 4: Un Interface
Explanation: In the context of RCLWI scenarios, specifically when the components are not collocated, standardization defines specific interfaces for interoperability. The Xw interface is designated for communication between the eNB and WT logical nodes in non-collocated setups, facilitating the integration of LTE and WLAN technologies for aggregated radio access. This interface enables the necessary signaling and data exchange for coordinated operation.