Receiving device, receiving method, transmitting device, and transmitting method
The present technology relates to a receiving device, a receiving method, a transmitting device, and a transmitting method capable of handling various operation modes with high flexibility. Various operation modes in digital broadcasting using an IP transmission method can be handled with high flexibility by use of a service package unit which processes one or a plurality of components constituting a particular service of a plurality of services included in a broadcasting wave of the digital broadcasting using an IP transmission method, and a control signal transmitted by FLUTE session or UDP, in such a manner that the component or components and the first control signal are processed in units of service based on an IP address contained in each packet. The present technology is applicable to a television receiver, for example.
1. A receiving device, comprising:
a receiver configured to receive a broadcast stream, the broadcast stream including a plurality of services, each of the plurality of services including one or a plurality of components and a first control signal transmitted by a unidirectional transport session; and
processing circuitry configured to process the one or the plurality of components constituting a particular service of the plurality of services included in the broadcast stream, and process one of the first control signals transmitted by the unidirectional transport session according to an Internet Protocol (IP) address, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the first control signal of the respective service, and in an IP layer, wherein no transport layer exists between the IP layer and a physical layer in a protocol stack.
2. The receiving device according to claim 1 , wherein
the broadcast stream is broadcast according to an IP transmission method, and
the first control signal is used in a first layer that is higher than the IP layer of the protocol stack of the IP transmission method, and at least contains information about the one or the plurality of components constituting the particular service.
3. The receiving device according to claim 2 , wherein
the broadcast stream includes a second control signal used in a second layer that is lower than the IP layer, and
the second control signal at least contains an identification for identifying a network, an identification for identifying a transport stream, and an identification for identifying a service.
4. The receiving device according to claim 3 , wherein the first control signal of the particular service transmitted by the unidirectional transport session is designated based on uniform resource locator (URL) information contained in an electronic service guide in the broadcast stream for designating the first control signal of the particular service.
5. The receiving device according to claim 3 , wherein the second control signal contains information indicating whether the particular service is on the air.
6. The receiving device according to claim 3 , wherein the first control signal of the particular service and the second control signal are contained in a service guide delivery unit (SGDU) container and transmitted.
7. The receiving device according to claim 1 , wherein the unidirectional transport session is a file delivery over unidirectional transport (FLUTE) session.
8. A receiving method comprising:
receiving a broadcast stream, the broadcast stream including a plurality of services, each of the plurality of services including one or a plurality of components and a first control signal transmitted by a unidirectional transport session; and
processing the one or the plurality of components constituting a particular service of the plurality of services included in the broadcast stream, and processing one of the first control signals transmitted by the unidirectional transport session according to an Internet Protocol (IP) address, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the first control signal of the respective service, and in an IP layer, wherein no transport layer exists between the IP layer and a physical layer in a protocol stack.
9. The receiving method according to claim 8 , wherein
the broadcast stream is broadcast according to an IP transmission method, and
the first control signal is used in a first layer that is higher than the IP layer of the protocol stack of the IP transmission method, and at least contains information about the one or the plurality of components constituting the particular service.
10. The receiving method according to claim 9 , wherein
the broadcast stream includes a second control signal used in a second layer that is lower than the IP layer, and
the second control signal at least contains an identification for identifying a network, an identification for identifying a transport stream, and an identification for identifying a service.
11. The receiving method according to claim 10 , wherein the first control signal of the particular service transmitted by the unidirectional transport session is designated based on uniform resource locator (URL) information contained in an electronic service guide in the broadcast stream for designating the first control signal of the particular service.
12. The receiving method according to claim 10 , wherein the second control signal contains information indicating whether the particular service is on the air.
13. The receiving method according to claim 10 , wherein the first control signal of the particular service and the second control signal are contained in a service guide delivery unit (SGDU) container and transmitted.
14. The receiving device according to claim 8 , wherein the unidirectional transport session is a file delivery over unidirectional transport (FLUTE) session.
15. A non-transitory computer readable storage medium storing instructions, which, when being executed by processing circuitry of a receiving device, cause the processing circuitry to perform a method comprising:
receiving a broadcast stream, the broadcast stream including a plurality of services, each of the plurality of services including one or a plurality of components and a first control signal transmitted by a unidirectional transport session; and
processing the one or the plurality of components constituting a particular service of the plurality of services included in the broadcast stream, and processing one of the plurality of first control signals transmitted by the unidirectional transport session according to an Internet Protocol (IP) address, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the first control signal of the respective service, and in an IP layer, wherein no transport layer exists between the IP layer and a physical layer in a protocol stack.
16. The non-transitory computer readable storage medium according to claim 15 , wherein
the broadcast stream is broadcast according to an IP transmission method, and
the first control signal is used in a first layer that is higher than the IP layer of the protocol stack of the IP transmission method, and at least contains information about the one or the plurality of components constituting the particular service.
17. The non-transitory computer readable storage medium according to claim 16 , wherein
the broadcast stream includes a second control signal used in a second layer that is lower than the IP layer, and
the second control signal at least contains an identification for identifying a network, an identification for identifying a transport stream, and an identification for identifying a service.
18. The non-transitory computer readable storage medium according to claim 17 , wherein the first control signal of the particular service transmitted by the unidirectional transport session is designated based on uniform resource locator (URL) information contained in an electronic service guide in the broadcast stream for designating the first control signal of the particular service.
19. The non-transitory computer readable storage medium according to claim 17 , wherein the second control signal contains information indicating whether the particular service is on the air.
20. The non-transitory computer readable storage medium according to claim 17 , wherein the first control signal of the particular service and the second control signal are contained in a service guide delivery unit (SGDU) container and transmitted.