Patent ID: 8724534

Claim:
A method of operating a Radio Access Station (RAS) in a wireless communication system, the method comprising: receiving information regarding business offices located in a cell coverage area of an RAS from a network entity of a core service network; classifying the received business office information into a plurality of business items for an advertisement, and storing the classified information in a Data Base (DB); allocating a Multicast Connection IDentifier (MCID) for each of the plurality of the business items; determining a transmission period for each of the plurality of the business items; obtaining a business office list of a corresponding business item from the DB when a Transmit (Tx) time elapses according to the Tx period; generating an advertisement multicast burst including the obtained business office list; and multicasting the generated advertisement multicast burst to Mobile Stations (MSs), wherein a plurality of the MCIDs corresponding to a plurality of preference business items according to a plurality of advertisement service subscriptions of the MSs are transmitted to the MSs, the generated advertisement multicast burst includes the business office list for each of the plurality of preference business items, and wherein the determining of the transmission period for each of the plurality of the business items comprises considering a wakeup period in an idle state of MSs that desire a corresponding business item.