Reception device, reception method, transmission device, and transmission method for distributing signaling information
There is provided a reception device including a signaling template acquisition unit for acquiring a LLS signaling template in order to generate LLS signaling information transmitted in LLS and a SCS signaling template in order to generate SCS signaling information transmitted in SCS, a differential information acquisition unit for acquiring LLS differential information applied to the LLS signaling template to generate the LLS signaling information, and SCS differential information applied to the SCS signaling template to generate the SCS signaling information, and a signaling information generation unit for applying the LLS differential information to the LLS signaling template thereby to generate the LLS signaling information, and applying the SCS differential information to the SCS signaling template thereby to generate the SCS signaling information.
1. A reception device comprising:
processing circuitry configured to
receive a first signaling template associated with a first identifier and first signaling information transmitted in a first layer of an Internet protocol (IP) transmission system in a digital broadcast signal, and a second signaling template associated with a second identifier and second signaling information transmitted in a second layer of the IP transmission system in the digital broadcast signal, the second layer being different from the first layer;
receive first differential information associated with the first identifier and to be applied to the first signaling template to generate the first signaling information, and second differential information associated with the second identifier and to be applied to the second signaling template to generate the second signaling information; and
apply the first differential information to the first signaling template based on the first identifier to generate the first signaling information, and apply the second differential information to the second signaling template based on the second identifier to generate the second signaling information.
2. The reception device according to claim 1 , wherein
the first signaling template, the second signaling template, and the first differential information are transmitted in the first layer,
the second differential information is transmitted in the second layer, and
the processing circuitry is configured to
acquire the first signaling template and the second signaling template transmitted in the first layer, and
acquire the first differential information transmitted in the first layer and the second differential information transmitted in the second layer.
3. The reception device according to claim 2 , wherein
the first signaling information includes a parameter not depending on a service identified by an IP address, and
the second signaling information includes a parameter depending on the service.
4. The reception device according to claim 3 , wherein
the processing circuitry is configured to acquire third differential information applied to the second signaling template to generate a service-based second signaling template, which is transmitted in the second layer, and
the service-based second signaling template is generated by applying the third differential information to the second signaling template.
5. The reception device according to claim 4 , wherein the first signaling template and the second signaling template are stored in the first signaling information.
6. The reception device according to claim 4 , wherein information on reference destinations of the first signaling template and the second signaling template is stored in the first signaling information.
7. The reception device according to claim 1 , further comprising:
a memory configured to store the first signaling template and the second signaling template therein.
8. The reception device according to claim 1 , wherein the processing circuitry is configured to receive the first signaling template and the second signaling template from a server.
9. The reception device according to claim 1 , wherein
the first layer is lower than an IP layer in protocol layers of the IP transmission system, and
the second layer is higher than the IP layer.
10. A reception method for a reception device, the method comprising:
receiving a first signaling template associated with a first identifier and first signaling information transmitted in a first layer of an Internet protocol (IP) transmission system in a digital broadcast signal, and a second signaling template associated with a second identifier and second signaling information transmitted in a second layer of the IP transmission system in the digital broadcast signal, the second layer being different from the first layer,
receiving first differential information associated with the first identifier and to be applied to the first signaling template to generate the first signaling information, and second differential information associated with the second identifier and to be applied to the second signaling template to generate the second signaling information; and
applying the first differential information to the first signaling template based on the first identifier to generate the first signaling information, and applying the second differential information to the second signaling template based on the second identifier to generate the second signaling information.