Receiving device, transmitting device, and data processing method
The present technology relates to a receiving device, a transmitting device, and a data processing method which are capable of providing a broadcast service using a wide bandwidth more flexibly. A receiving device processes a stream in which delivery configuration information indicating that the stream of the broadcast service is delivered across a predetermined frequency band is included in transmission information which is transmitted through an upper layer higher than a physical layer, the stream having a delivery configuration corresponding to the delivery configuration information, so that a broadcast service using a wider bandwidth can be provided. The present technology can be applied to a FW proxy device connected to a network such as, a home LAN, a head end of a cable operator, a base station of a mobile network, or the like.
1. A receiving device, comprising:
receiver circuitry configured to receive a first broadcast stream of a broadcast service; and
processing circuitry configured to process the first broadcast stream based on transmission information, wherein
in the first broadcast stream, a broadcast stream ID (BSID) of the first broadcast stream and a BSID of a second broadcast stream are included in the transmission information which is transmitted through an upper layer higher than a physical layer, the second broadcast stream delivering a portion of the broadcast service, and
the transmission information includes an attribute indicating importance for the broadcast service, the attribute corresponding to at least one of the first broadcast stream or the second broadcast stream.
2. The receiving device according to claim 1 , herein the processing circuitry is configured to
receive the first broadcast stream,
transmit the first broadcast stream to a client device connected to a network,
function as a master proxy for a slave proxy, and
determine a broadcast service responsible range corresponding to delivery configuration information, included in the transmission formation, for the slave proxy.
3. The receiving device according to claim 2 , wherein the processing circuitry is configured to allocate the broadcast service, as the broadcast service responsible range, to the slave proxy simultaneously operated for receiving the second broadcast stream based on the delivery configuration information.
4. The receiving device according to claim 2 , wherein the transmission information is delivered ahead of the first broadcast stream of the broadcast service corresponding to the transmission information by a predetermined period.
5. The receiving device according to claim 4 , wherein the transmission information includes information related to an electronic program guide.
6. The receiving device according to claim 4 , wherein the processing circuitry is configured to provide notification of delivery of the broadcast service based on the transmission information.
7. The receiving device according to claim 2 , wherein
one or more other receiving devices in which the slave proxy operates are installed on the network, and
the processing circuitry is configured to
generate a database in which each proxy is associated with the broadcast service responsible range, and
cause a request for the broadcast service to be redirected to a proxy which is in charge of the broadcast service with reference to the database in a case where the request for the broadcast service is received from the client device.
8. The receiving device according to claim 1 , wherein the attribute indicating importance for the broadcast service indicates that the portion of the broadcast service delivered in the second broadcast stream is essential for the broadcast service.
9. The receiving device according to claim 8 , wherein
the attribute indicating importance for the broadcast service is priority information indicating a priority between sessions, and
the processing circuitry is configured to determine a broadcast service responsible range corresponding to delivery configuration information included in the transmission information and the priority information included in the transmission information for each proxy.
10. The receiving device according to claim 9 , wherein
a delivery configuration indicated by the delivery configuration information includes a first session for transmitting a minimum necessary stream and a second session for transmitting an additional stream, and
in the priority information, a priority of the first session is higher than a priority of the second session.
11. The receiving device according to claim 8 , wherein the processing circuitry is configured to determine the broadcast service responsible range corresponding to delivery configuration information for each proxy each time the delivery configuration information is indicated as updated.
12. The receiving device according to claim 8 , wherein
the transmission information includes control information delivered for each broadcast service, and
the delivery configuration information is included in the control information of a file transfer protocol.
13. The receiving device according to claim 1 , wherein the first broadcast stream and the second broadcast stream are delivered in different predetermined frequency bands which are bandwidths allocated for each RF channel.
14. The receiving device according to claim 1 , wherein the receiver circuitry includes a tuner to receive the broadcast service.
15. The receiving device according to claim 1 , wherein
the receiver circuitry includes a plurality of tuners, and
at least one of the timers receives the broadcast service.
16. The receiving device according to claim 1 , further comprising:
a display configured to reproduce content corresponding the broadcast service, and
wherein the display is a liquid crystal display or an organic electroluminescence display.
17. The receiving device according to claim 1 , wherein the first broadcast stream delivers a base layer for a scalable video coding (SVC), and the second broadcast stream delivers an enhancement layer for the SVC.
18. The receiving device according to claim 17 , wherein the enhancement layer corresponds to a higher image quality than an image quality corresponding to the base layer or a higher frame rate than a frame rate corresponding to the base layer.
19. A data processing method of a receiving device, comprising:
receiving a first broadcast stream of a broadcast service, and
processing, by processing circuitry of the receiving device, the first broadcast stream based on transmission information, wherein
in the first broadcast stream, a broadcast stream ID (BSID) of the first broadcast stream and a BSID of a second broadcast stream are included in the transmission information which is transmitted through an upper layer higher than a physical layer, the second broadcast stream delivering a portion of the broadcast service, and
the transmission information includes an attribute indicating importance for the broadcast service, the attribute corresponding to at least one of the first broadcast stream or the second broadcast stream.
20. The data processing method according to claim 19 , wherein the attribute indicating importance for the broadcast service indicates that the portion of the broadcast service delivered in the second broadcast stream is essential for the broadcast service.