Patent ID: 8937894
Filing Date: 2015-01-20
Classification: H04W,Y02D

Abstract:
1. A method of allocating a multicast resource to a multicast group for a multicast communication in a base station, the method comprising: persistently allocating the multicast resource to the multicast group; generating a MAP information element (IE) including allocation information of the multicast resource, an allocation period indicating a period in which the multicast resource is allocated, and a lifetime indicating a time for transmitting a next MAP IE; transmitting the MAP IE to the multicast group; and transmitting the next MAP IE including new allocation information on the multicast resource to the multicast group when the lifetime expires, wherein the next MAP IE is transmitted at a frame or superframe whose number satisfies N modulo L+1=0, where N is the number of the frame or superframe, and L is the lifetime.