Location-based, event triggered inter-radio access technology handovers from a CDMA macrocell to a WCDMA femtocell

A method implemented in a mobile unit that is configured to communicate with a wireless communication system that comprises at least one base transceiver station and at least one femtocell, said at least one base transceiver station using a different radio access technology than said at least one femtocell, the method comprising:

• receiving, at said mobile unit in a connection setup message transmitted by the at least one femtocell, information indicating coordinates of said at least one femtocell;
• receiving, at said mobile unit from said at least one base transceiver station, information indicating a threshold distance;
• determining, at said mobile unit, a distance between said mobile unit and said at least one femtocell by comparing coordinates of the mobile unit to the coordinates of said at least one femtocell;
• transmitting, from said mobile unit to said at least one base transceiver station, a first measurement report in response to the mobile unit determining that the distance between said mobile unit and said at least one femtocell is less than the threshold distance;
• and
• performing an inter-radio access technology handoff from said at least one base transceiver station to said at least one femtocell when the distance between said mobile unit and said at least one femtocell is less than the threshold distance.