| 摘要 |
<p>A WiMAX system includes a delivery controller (500) having a base station information database (5022, 5024, 5025) and a regional information database (5023) in which the base station information database stores latitude/longitude information of a base station installed position and base station identification information in off-line, and a unit to specify a base station installed in a delivery desired region (I), thereby base station information of the delivery desired region is stored in the regional information database and a multicast delivery is connected to a base station alone specified by the regional information database to be able to deliver multicast data limited to a specified region.</p> |
