METHOD AND APPARATUS FOR TRANSITIONING FROM A FIRST RAT TO A SECOND RAT

摘要

A method, in a wireless communications device having a first protocol stackforuse with a first radio access technology and a second protocol stack for usewith asecond radio access technology, the method for transitioning from a firstradio accesstechnology to a second radio access technology, the method comprising:maintaining alist of available communication cells associated with the second radio accesstechnology, and transferring information associated with more than oneavailablecommunication cell associated with the second radio access technology from thefirstprotocol stack to the second protocol stack.