| 摘要 |
PURPOSE: A VOD(Video On Demand) batching method combining static multi-casting and dynamic multi-casting is provided to combine the static multi-casting and the dynamic multi-casting by using interval time at transmission time, thereby effectively reducing the amount of use of channels. CONSTITUTION: When a segment number, which is requested in a dynamic broadcast group, is lesser than a next segment number which is transmitted to a static broadcast group, a system confirms continuous reproduction. When the segment number is greater than or equal to the next segment number, the system transmits the segment number to the dynamic broadcast group. When the continuous reproduction is possible, the system transmits the same segment to the dynamic broadcast group and the static broadcast group. When the continuous reproduction is impossible, the system transmits the segment number to the dynamic broadcast group. [Reference numerals] (AA) Start; (BB) Detect a segment(Rd) which is the most requested in a dynamic broadcast group; (CC) Confirm a next segment(Ns) transmitted from a static broadcast group; (DD) Whether or not continuous reproduction; (EE,GG) Transmit the segment(Rd) requested in the dynamic broadcast group; (FF) Transmit the same segment to the static broadcast group and the dynamic broadcast group
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