Location Services (LCS) architecture for 3GPP system - Wireless Local Area Network (WLAN) interworking
The present document investigates solutions for providing LCS over 3GPP WLAN interworking architecture. The architectural requirements and different possible LCS architectures to provide the location services over I-WLAN are analyzed. The procedures to obtain the location information of a WLAN UE attached to I-WLAN network are also studied. The LCS aspects for I-WLAN as IP-CAN in the IMS Emergency call, i.e., the emergency location information handling for I-WLAN are described in this TR.