The present invention is related to a method and apparatus for providing
service availability information to a user in a wireless communication
system. After receiving a beacon signal from a base station, a WTRU
measures a power level and an interference level of the beacon signal. A
target SIR and a power offset for each service is pre-defined and stored
in a memory of the WTRU. A processor calculates an estimated SIR for each
service, and generates a service availability indicator by dividing the
estimated SIR with a target SIR for each service. A user is informed of
the availability of various services simply by looking at the display of
the WTRU.