METHOD OF BEST EFFORT HANDOFF TO MAINTAIN RADIO BEARER AND MIP SESSION CONTINUITY FOR MULTI-MODE MOBILE UNITS

摘要

The present invention provides a method of best effort hand off that is implemented in a mobile unit capable of communicating with a network according to multiple wireless access technologies. The method includes performing a handoff of the mobile unit from a first wireless communication link established according to a first wireless access technology to a second wireless communication link established according to a second wireless access technology. The method also includes transmitting, over the second wireless communication link, a de-registration message requesting de-registration of the first wireless communication link in response to performing the handoff.