Reception device, reception method, transmission device, and transmission method

A reception method implemented by a reception device, the reception method including:

• receiving, by the reception device, a digital broadcast signal that is in accordance with an IP transmission scheme, and
• processing, by the reception device, on a per-service basis, a particular service and at least one shared component related to the particular service, among a plurality of services included in the digital broadcast signal, by using a first IP address included in each packet of the particular service and a second IP address different from the first IP address included in each packet of the at least one shared component,
• wherein the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and the first control signal includes information of the one or more components of the particular service and of the at least one shared component.

A transmission device including a transmitter that transmits a particular service and at least one shared component related to the particular service in a digital broadcast signal that is in accordance with an IP transmission scheme,

• wherein each packet of the particular service has a first IP address and each packet of the at least one shared component has a second IP address different from the first IP address, on a per-service basis, and
• the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and the first control signal includes information of the one or more components of the particular service and of the at least one shared component.

A transmission method implemented by a transmission device, the transmission method comprising:

• transmitting, by the transmission device, a digital broadcast signal in accordance with an IP transmission scheme such that each packet of a particular service has a first IP address and each packet of at least one shared component related to the particular service has a second IP address different from the first IP address on a per-service basis, wherein
• the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and
• the first control signal includes information of the one or more components of the particular service and of the at least one shared component.