Receiving device, reception method, transmitting device, and transmission method
The present technology relates to a receiving device, a reception method, a transmitting device, and a transmission method capable of performing an effective filtering process. There is provided a receiving device including a filtering processing unit that performs a filtering process of a packet by using filtering information arranged in a header of the packet transmitted in a first layer that is a layer upper than an IP layer in layers of a protocol of the IP transmission system in a broadcasting wave of digital broadcasting using an IP transmission system. The present technology, for example, can be applied to a television set.
1. A receiving device comprising:
circuitry configured to
receive a digital broadcast signal transmitted using an Internet Protocol (IP) transmission method;
determine whether to extract a Layered Coding Transport (LCT) packet, from a plurality of LCT packets included in the digital broadcast signal, based on filtering information arranged in an LCT header of the LCT packet transmitted in a first layer that is higher than an IP layer of a protocol of the IP transmission method in the digital broadcast signal, and
process first signaling data stored in the extracted LCT packet when the LCT packet is determined to be extracted, wherein
the LCT packet is transmitted using a session of the first layer,
the filtering information includes compression information representing compression/no-compression of the first signaling data, filter information representing a filtering condition of the first signaling data, and version information representing a version of the first signaling data, and
the filter information indicates which of a plurality of types of the first signaling data is contained in the first signaling data.
2. The receiving device according to claim 1 , wherein
the first layer is an extension of a File Delivery over Unidirectional Transport (FLUTE).
3. The receiving device according to claim 2 , wherein
the filtering information is arranged in an extended area of the LCT header.
4. The receiving device according to claim 2 , wherein
a part or all of the filtering information is arranged in the LCT header of a first pattern instead of a code point that is an area used according to an operation in a LCT header of a second pattern.
5. The receiving device according to claim 2 , wherein
the first signaling data is acquired from a server through a network.
6. The receiving device according to claim 2 , wherein
the first signaling data includes index information of the session of the first layer.
7. The receiving device according to claim 2 , wherein
the first signaling data is Service Channel Signaling (SCS) or an Electronic Service Guide (ESG), and
a common IP address is assigned to components and the SCS configuring a specific service transmitted using the session of the first layer.
8. The receiving device according to claim 1 , wherein the filtering information is arranged in a Transport Object Identifier (TOI) of the LCT header.
9. The receiving device according to claim 1 , wherein
the filter information represents the filtering condition set for each of the plurality of types of the first signaling data.
10. The receiving device according to claim 9 , wherein the first layer is based on a File Delivery over Unidirectional Transport (FLUTE).
11. A reception method of a receiving device, the reception method comprising:
receiving a digital broadcast signal transmitted using an Internet Protocol (IP) transmission method;
determine whether to extract a Layered Coding Transport (LCT) packet, from a plurality of LCT packets included in the digital broadcast signal, based on filtering information arranged in an LCT header of the LCT packet transmitted in a first layer that is higher than an IP layer of a protocol of the IP transmission method in the digital broadcast signal; and
processing first signaling data stored in the extracted LCT packet when the LCT packet is determined to be extracted, wherein
the LCT packet is transmitted using a session of the first layer, and
the filtering information includes compression information representing compression/no-compression of the first signaling data, filter information representing a filtering condition of the first signaling data, and version information representing a version of the first signaling data, and
the filter information indicates which of a plurality of types of the first signaling data is contained in the first signaling data.
12. A transmitting device comprising:
circuitry configured to
acquire one or a plurality of components configuring a service;
acquire first signaling data; and
transmit the first signaling data together with the components via a digital broadcast signal transmitted using an Internet Protocol (IP) transmission method, wherein
the digital broadcast signal includes a Layered Coding Transport (LCT) packet, in which the first signaling data is stored and that is transmitted in a first layer that is higher than an IP layer of a protocol of the IP transmission method,
a LCT header of the LCT packet includes filtering information used to determine whether to extract the packet for processing the first signaling data,
the LCT packet is transmitted using a session of the first layer,
the filtering information includes compression information representing compression/no-compression of the first signaling data, filter information representing a filtering condition of the first signaling data, and version information representing a version of the first signaling data, and
the filter information indicates which of a plurality of types of the first signaling data is contained in the first signaling data.
13. The transmitting device according to claim 12 , wherein
the first layer is an extension of a File Delivery over Unidirectional Transport (FLUTE).
14. The transmitting device according to claim 13 , wherein the filtering information is arranged in an extended area of the LCT header.
15. The transmitting device according to claim 13 , wherein a part or all of the filtering information is arranged in the LCT header of a first pattern instead of a code point that is an area used according to an operation in a LCT header of a second pattern.
16. The transmitting device according to claim 13 , wherein the first signaling data is acquired from a server through a network.
17. The transmitting device according to claim 13 , wherein the first signaling data includes index information of the session of the first layer.
18. The transmitting device according to claim 13 , wherein
the first signaling data is Service Channel Signaling (SCS) or an Electronic Service Guide (ESG), and
a common IP address is assigned to the components and the SCS configuring a specific service transmitted using the session of the first layer.
19. The transmitting device according to claim 12 , wherein the filtering information is arranged in a TOI of the LCT header.
20. The transmitting device according to claim 12 , wherein the filter information represents the filtering condition set for each of the plurality of types of the first signaling data.
21. A transmission method of a transmitting device, the transmission method comprising:
acquiring one or a plurality of components configuring a service;
acquiring first signaling data; and
transmitting the first signaling data together with the components via a digital broadcast signal transmitted using an Internet Protocol (IP) transmission method, wherein
the digital broadcast signal includes a Layered Coding Transport (LCT) packet, in which the first signaling data is stored and that is transmitted in a first layer that is higher than an IP layer of a protocol of the IP transmission method,
a LCT header of the LCT packet includes filtering information used to determine whether to extract the packet for processing the first signaling data,
the LCT packet is transmitted using a session of the first layer,
the filtering information includes compression information representing compression/no-compression of the first signaling data, filter information representing a filter condition of the first signaling data, and version information representing a version of the first signaling data, and
the filter information indicates which of a plurality of types of the first signaling data is contained in the first signaling data.