Broadcasting signal transmission device, broadcasting signal reception device, broadcasting signal transmission method, and broadcasting signal reception method

A broadcast receiver for providing a broadcast service, the broadcast receiver comprising:

• a communicator to connect the broadcast receiver with a companion device;
• and
• a controller to:
• control the communicator to receive a request for Electronic Service Guide (ESG) data from the companion device, and
• control the communicator to transmit partial or full ESG information of the ESG data to the companion device based on the request,
• wherein the partial ESG information is ESG information related to a specific broadcast service,
• the ESG data includes:
• a service fragment for the broadcast service including an identifier for the broadcast service, and
• a content fragment for content data which is associated with the broadcast service, and
• the content fragment including an extension element including a component element, and
• the component element includes:
• a video component element describing a role of a video component,
• an audio component element describing a role of an audio component,
• a closed caption component element describing a role of a closed caption component,
• an application component element describing a role of an application component, and
• a capability element.