HANDOVER FROM 3GPP TO UNTRUSTED NON-3GPP ACCESS BASED ON MEASURED COMMUNICATION PATH CHARACTERISTICS

摘要

The invention relates to a mobile terminal (101,105) and a method of determining whether to perform handover of the mobile terminal in a wireless communications network from a radio access network (102), e.g. E-UTRAN, to an untrusted wireless local area network (103), e.g. WLAN. The method of determining whether to perform handover of a mobile terminal (101) in a wireless communications network from a radio access network (102) to a wireless local area network (103) comprises measuring (S101) a physical property of a communication path established between the mobile terminal (101) and a packet core network gateway node ePDG (105) via the wireless local area network (103), determining (S102) whether the measured physical property complies with at least one communication path quality criterion; and if so performing (S103) handover of the mobile terminal (101) from the radio access network (102) to the wireless local area network (103).