Patent ID: 8121084

Claim:
An area management system for managing areas where flows of a multicast content are delivered, comprising: a plurality of wireless base stations which have one or more sectors; a communication control apparatus connected to the plurality of wireless base stations, for controlling flows of a multicast content; and a wireless apparatus for combining flows transmitted from plural wireless base stations and restoring the content, wherein, data transmission from the wireless base station to the wireless apparatus includes plural interlaces; an area identification number for identifying an area where a flow of the content is delivered, for each of the plural interlaces of the plural wireless base station, is specified, and the area identification number for each interlace is stored in each of the plural wireless base stations, wherein the area identification number is stored in association with each of the flows in the communication control apparatus, and wherein the same flow is delivered from the plural different sectors, the same area identification number is specified to the same interlace of the plural different sectors, the flows are delivered, and information of the sectors of the same area identification number are given to the wireless apparatus; areas, where the flows transmitted from the plural wireless base stations can be combined and the content can be restored by the wireless apparatus, are specified for each of the interlaces, and the areas are managed.