A method and apparatus for determining soft handover in a CDMA mobile
communication system supporting Multimedia Broadcast/Multicast Service
(MBMS) is provided. In the asynchronous CDMA mobile communication system
supporting MBMS, when a UE moves to a region where it can receive data
from a plurality of Node Bs, the UE determines whether to perform soft
combining using a measurement value of a dedicated pilot channel signal,
in performing soft handover. In this way, the UE can determine whether to
perform soft combining on MBMS data received from a plurality of Node Bs
by itself. Therefore, even though an MBMS user moves from a current or
existing cell to a new cell, a stable MBMS service is provided to the
user, thereby contributing to the user's convenience.