TRANSMISSION MODE SWITCHING METHOD FOR A MULTICAST BROADCASTING SERVICE AND A DEVICE THEREOF CAPABLE OF EFFICIENTLY USING WIRELESS RESOURCES

摘要

PURPOSE: A transmission mode switching method for a multicast broadcasting service and a device thereof are provided to efficiently switch a multicast transmission mode and a unicast transmission mode in a mobile communication system based on Mobile WiMAX.;CONSTITUTION: An MBS proxy(23) increases a count value indicating the number of mobile terminals receiving a current service. The MBS proxy determines a service flow type which is a transmission mode based on the count value(S170). When the service flow type is changed, a service flow is generated according to the changed type(S220). The service flow is released according to a previous type. If the service flow type is not changed, a service flow for a newly joined mobile terminal is generated.;COPYRIGHT KIPO 2013;[Reference numerals] (21) Serving SFA; (22) Anchor SFA; (23) MBS proxy; (S100) MS initial access procedure; (S110) Requesting to join a service; (S140) Executing an authentication/authority verification procedure; (S160) Connection setting procedure; (S170) Determining a service flow type after increasing a count value; (S190) Analyzing a service flow type; (S200) Unicast service flow generating procedure; (S210) Multicast service flow generating procedure; (S220) Multicast service flow generating procedure; (S230) Unicast service flow releasing procedure;