METHOD FOR ENABLING MULTICAST SERVICES AND USER EQUIPMENT BATTERY SAVINGS

摘要

A system and method for providing multicast services to wireless transmit/receive units (WTRUs) enhances battery life and provides for more efficient use of the radio resources. Each service, or a target group for a service,is assigned an identifier. The identifier is associated with a pointer to the transmission of data. Each WTRU searches for the identifier in order to know when the data will be transmitted. The WTRUs may receive the pointer from a number of different paging windows. The transmission of the data occurs after the last pointer is transmitted in order to guarantee that all the target WTRUs receive a pointer to the data prior to the transmission of the data.