Content supply apparatus, content supply method, program, terminal apparatus, and content supply system

1. A content supply apparatus that delivers streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique, the content supply apparatus comprising:

circuitry configured to

generate an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters of physical layers for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

multicast the generated extended USD using a unidirectional transport to a receiver, wherein

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity, or bit error rate, and

the condition values are an upper limit, a lower limit, or a specified value.

2. The content supply apparatus according to claim 1 , wherein the unidirectional transport is File Delivery over Unidirectional Transport.

3. The content supply apparatus according to claim 1 , wherein the plurality of different networks include at least one of Internet, a terrestrial broadcast network, a satellite broadcast network, a cable television broadcast network, a mobile broadcast network, and a wireless local area network (LAN).

4. The content supply apparatus according to claim 1 , wherein the circuitry is further configured to introduce an MPDBaseMapping element in the USD, introduce a RequiredQos element in the MPDBaseMapping element, describe, in the RequiredQos element, the QoS parameters of the physical layers for the respective plurality of different networks through which the streams are delivered, and describe the condition values of the QoS parameters in the RequiredQos element.

5. The content supply apparatus according to claim 1 , wherein the circuitry is further configured to introduce a RequiredQos element in DeliverMethod of the USD, describe, in the RequiredQos element, the QoS parameters of the physical layers for the respective plurality of different networks through which the streams are delivered, and describe the condition values of the QoS parameters in the RequiredQos element.

6. The content supply apparatus according to claim 1 , wherein the condition values are the upper limit or the lower limit.

7. The content supply apparatus according to claim 1 , wherein the condition values include a first threshold, a second threshold, and a third threshold.

8. A content supply method for a content supply apparatus that delivers streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique, the method comprising:

generating an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters of physical layers for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

multicasting the generated extended USD using a unidirectional transport to a receiver, wherein

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity, or bit error rate, and

the condition values are an upper limit, a lower limit, or a specified value.

9. A non-transitory, computer readable medium storing a program for causing a computer to perform the method of:

delivering streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique;

generating an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

multicasting the generated extended USD using a unidirectional transport to a receiver, wherein

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity, or bit error rate, and

the condition values are an upper limit, a lower limit, or a specified value.

10. A receiving apparatus, comprising:

circuitry configured to

receive streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique;

receive an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters of physical layers for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

select and play back one of the streams according to the QoS parameters of the physical layers for the respective plurality of different networks described in the received metadata and according to a capability of the receiving device, wherein

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity, or bit error rate,

the condition values are an upper limit, a lower limit, or a specified value, and

the extended USD is multicast using a unidirectional transport.

11. The receiving apparatus according to claim 10 , wherein the metadata includes a service announcement received from the multicast using the unidirectional transport multicast.

12. The receiving apparatus according to claim 11 , wherein the plurality of different networks include at least one of Internet, a terrestrial broadcast network, a satellite broadcast network, a cable television broadcast network, a mobile broadcast network, and a wireless LAN.

13. A content supply system, comprising:

a receiving apparatus; and

a content supply apparatus including first circuitry configured to

deliver streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique;

generate an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters of physical layers for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

multicast the generated extended USD using a unidirectional transport to the receiving apparatus; wherein

the receiving apparatus includes second circuitry configured to

receive the streams of content through the plurality of different networks, respectively, according to the adaptive streaming technique;

receive the metadata describing the QoS parameters of the physical layers for the respective plurality of different networks through which the streams are delivered, and describing the condition values of the QoS parameters; and

select and play hack one of the streams according to the QoS parameters for the respective plurality of different networks described in the received metadata and according to a capability of the receiving device,

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity, or bit error rate, and

the condition values are an upper limit, a lower limit, or a specified value.

14. A method performed by a receiving apparatus; the method comprising:

receiving streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique;

receiving an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters of physical layers for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

selecting and playing back one of the streams according to the QoS parameters of the physical layers for the respective plurality of different networks described in the received metadata and according to a capability of the receiving device, wherein

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity; or bit error rate,

the condition values are an upper knit, a lower limit, or a specified value, and

the extended USD is multicast using a unidirectional transport.

15. The receiving apparatus according to claim 14 , wherein the metadata includes a service announcement received from the multicast using the unidirectional transport.

16. The receiving apparatus according to claim 15 , wherein the plurality of different networks include at least one of Internet, a terrestrial broadcast network, a satellite broadcast network, a cable television broadcast network, a mobile broadcast network, and a wireless LAN.

17. A non-transitory, computer readable medium storing a program that, when executed by a computer, causes the computer to:

receive streams of content through each of a plurality of different networks, respectively, according to an adaptive streaming technique;

receive an extended User Service Bundle Description (USD) including metadata describing quality of service (QoS) parameters of physical layers for the respective plurality of different networks through which the streams are delivered, and describing condition values of the QoS parameters; and

select and play back one of the streams according to the QoS parameters of the physical layers for the respective plurality of different networks described in the received metadata and according to a capability of the receiving device, wherein

the QoS parameters are delay, delay jitter, loss, throughput, radio field intensity, or bit error rate,

the condition values are an upper limit, a lower limit, or a specified value, and

the extended USD is multicast using a unidirectional transport.