Patent ID: 7996033

Claim:
In a radio communication system including a plurality of base stations, a communication controller connecting the plurality of base stations with a communication network, and a contents server connected to the communication network, wherein each base station is associated with a plurality of sectors, the base station comprising: a sector state managing table for storing group numbers, each group number being associated with the sectors of the base station and with sectors of other base stations that are adjacent to one of the sectors of the base station, wherein base stations of the sectors associated with said each group number are configured to transmit identical communication information to an access terminal at substantially the same timing; and a control unit, wherein, when the control unit receives a viewing request from the access terminal, the control unit establishes a path to the communication controller, obtains the communication information from the contents server via the communication controller to start transmission thereof to the access terminal from a first sector of the base station, and transmits a communication information transmission request to sectors adjacent to the first sector using based on information in the sector state managing table, wherein the communication information transmission request includes at least an ID of the communication information, an ID of the first sector, and the group number associated with the first sector, and wherein, when the control unit receives another communication information transmission request from another base station, the control unit refers to the sector state managing table, when the group number of the sector that received said another communication information transmission request coincides with the group number included in said another communication information transmission request, then the control unit establishes a path to the communication controller, and obtains communication information specified in said another communication information transmission request from the contents server via the communication controller to start transmission thereof to the access terminal.