Reception apparatus, reception method, transmission apparatus, and transmission method

A reception apparatus, comprising:

• a receiver configured to receive a digital broadcast signal via a first communication path using an IP (Internet Protocol) transmission system;
• and
• circuitry coupled to the receiver and configured to:
• acquire first signaling information for acquiring at least one component of audio components or video components of a service channel of broadcast content, the at least one component being included in the digital broadcast signal, wherein the first signaling information is service channel signaling including at least one of a user service description or a media presentation description provided in the service channel together with the at least one component of the audio components or the video components of the service channel;
• acquire second signaling information relating to characteristics of at least one service channel included in the broadcast content, wherein the second signaling information includes physical parameter information, and is conveyed via low level signaling;
• and
• perform channel selection and acquire the at least one component based on the first signaling information and the characteristics of the at least one service channel included in the second signaling information.