METHOD FOR EFFICIENTLY PERFORMING INTERRAT HANDOVER IN A RADIO ACCESS SYSTEM

摘要

The present invention relates to a radio access system, and more particularly, to a method for efficiently performing handover in circumstances in which two networks use different communication methods, and to an apparatus using the method. According to one embodiment of the present invention, a method for performing handover in a first type of cell by a terminal supporting an inter-radio access technology (interRAT) handover (HO) comprises the steps of: searching for cells of a second type that are operating in accordance with a communication type different from that of said first type of cell; receiving a minimal reception signal quality value and signal quality offset information from a second type of base station which is found in step 1; determining whether or not the said found second type of base station is available for service based on a signal quality measurement value, a power compensation value, and said minimal reception signal quality value and signal quality offset information of said found second type of base station; and performing handover to said second type of base station when the latter is determined to be available for service.

主权项

1. A method for performing handover in a first-type cell by a user equipment (UE) supporting an inter Radio Access Technology (interRAT) handover (HO) in a radio access system, comprising:
searching for a second-type cell configured to use a communication scheme different from that of the first-type cell; receiving a minimum reception (Rx) signal quality value and signal quality offset information from the searched second-type base station (BS); determining whether or not a service from the searched second-type BS is available in consideration of a signal quality measurement value, a power compensation value, the minimum Rx signal quality value, and the signal quality offset information of the searched second-type BS; and performing handover (HO) to the searched second-type BS, if the service from the searched second-type BS is available.