RECEPTION DEVICE, RECEPTION METHOD, TRANSMISSION DEVICE, AND TRANSMISSION METHOD

摘要

Provided are a reception device and a reception method for receiving a file in MMT format. Transmitted from the transmission side are resources constituting an application, information whereby a URL indicating a location in the application is mapped to a location on an MMT transmission channel for broadcast, etc., and information showing the link relationship to a display unit of the application. The range of access to hierarchical file data when a data broadcast application is to be executed, and the location information and size of the file data in the access range are retrieved on the receiver side, and effective advance caching is performed for the application.