METHOD AND APPARATUS FOR PROVIDING CELL INFORMATION LIST FOR NON-3GPP CAPABLE USER EQUIPMENT OPERATING IN A 3GPP NETWORK AND SUPPORTING LAYER-2 BASED HANDOFF FROM A UTRAN SYSTEM TO A NON-3GPP SYSTEM

摘要

Method and apparatus providing cell information list for non-third generation partnership project (3GPP) capable wireless transmitter/receiver unit (WTRU) operating in a 3GPP network, which camps on a 3GPP channel to obtain information of at least one network available in the cell. The WTRU may request a list having at least one of a trusted IEEE 802.11 network, a non-trusted IEEE 802.11 network, a trusted WiMAX network, and a fixed broadband network. In an inter radio access technology (RAT) procedure for an inter-RAT handover, a list of available systems and at least one of intra-frequency, inter-frequency, and inter-radio access technology (RAT) cells is received and stored while the WTRU is engaged in a call. While moving, the WTRU detects and performs radio frequency (RF) measurements on target cells and systems and reports inter-RAT handover information. Upon receipt of a command, the WTRU initiates a handover, followed by a complete message.