determination of the transmission time in a mobile communication system weiterreichens during rolling by a multicast schaltvorrichtung higher order to avoid redundant transmission paths

摘要

PROBLEM TO BE SOLVED: To prevent wasteful consumption of network resources and to make timing when a mobile terminal receives data from respective base stations to be the same to one another.;SOLUTION: In a communication system, each switching device has an MP (multipath point) high-order switching device 20 which respectively determines transmission timing showing timing for transmitting packet data to a plurality of devices connected to switching devices, and a communicating part which respectively transmits the packet data to the plurality of devices on the basis of the determined transmission timing in each switching device so as to make timing for data reception by a mobile terminal 50 to be the same to one another among a plurality of base stations 42, 43 and 44.;COPYRIGHT: (C)2004,JPO&NCIPI