CONTENT SENDING APPARATUS, CONTENT RECEIVING APPARATUS, CONTENT SENDING METHOD AND CONTENT RECEIVING METHOD

摘要

There are included a content sending part (111) that adds an IP header to a content to generate an IP packetized content and then sends the IP packetized content to a communication network (101); and an encapsulating part (112) that encapsulates the content, which has been IP packetized by the content sending part (111), into a predetermined transport packet to be sent out from a digital broadcast network (102). The content sending part (111) and encapsulating part (112) each use an IP multicasting to send a plurality of contents. The content sending part (111) adds information, which is related to the condition of a content receiving node, to the header of each content to be IP packetized.