Information distribution device and method, and information distribution system

摘要

[Object] To improve efficiency of information distribution.;[Solution] A broadcast resource management server 12 obtains frequency usage state information from WSDBs 21-1 through 21-N when content to be distributed is provided, evaluates, based on the obtained frequency usage state information a distribution time slot to distribute content and a distribution frequency band to use for the distribution, notifies TVBDs 31-1 through 31-M of a distribution schedule so as to be in state capable of reception of the content to be distributed using the distribution frequency band in a distribution time slot, and the broadcast server 11 uses, when a distribution time slot arrives, the distribution frequency band to distribute the content to the TVBDs 31-1 through 31-M in a receivable state in accordance with the distribution schedule. The present invention can be applied to a content distribution system to perform distribution of the content.

主权项

1. An information distribution device, comprising:
circuitry to
obtain content to be distributed;obtain evaluation reference information including monetary cost parameters relating to a plurality of time slots and a plurality of frequency bands in a predetermined area;obtain frequency usage state information relating to a usage state of a frequency band for each time slot in the predetermined area;evaluate a distribution time slot to distribute the obtained content and a distribution frequency band to be used for the distribution, based on the obtained frequency usage state information and the obtained evaluation reference information, by generating a cost evaluation graph weighted by the evaluation reference information, evaluating the generated cost evaluation graph and identifying from common available blocks a reserved block for the distribution time slot and the distribution frequency band;notify the distribution information for the content to be distributed using the distribution frequency band for the distribution time slot, as to a plurality of terminal devices within the predetermined area; anduse, when the distribution time slot arrives, the distribution frequency band to distribute the obtained content to the plurality of terminal devices in a state of being distributed to in accordance with the distribution information.