Question: What triggers the measurement of the number of attempted WLAN releases from the LWIP WLAN mobility set?
Option 1: Transmission of RRCConnectionReconfiguration message without wlan-ToReleaseList in lwip-MobilityConfig.
Option 2: Receipt of a specific packet from the UE.
Option 3: Transmission of RRCConnectionReconfiguration message which includes the wlan-ToReleaseList in the lwip-MobilityConfig of lwip-Configuration information element by the eNB.
Option 4: Handover to another cell.
Explanation: The measurement is triggered when the eNB transmits an RRCConnectionReconfiguration message that includes the wlan-ToReleaseList in the lwip-MobilityConfig of lwip-Configuration information element, indicating an attempt to release a WLAN connection. This event is specific to the LWIP WLAN mobility set and is used to count attempted releases.