Method and apparatus for transmitting broadcast, method and apparatus for receiving broadcast

The A-VSB transmission system is not suitable to apply to the mobile station. Adaptive setting to the type of application data to be transmitted information and generate the encapsulated packet including the application data, and generates a transmission packet including the data of said encapsulated packet divided into a predetermined size, and the transport packet is the transport packet includes information about the structure, by the at least one transfer channel the service information channel at a predetermined position of on the transport stream, generating the service configuration information comprising information that is set for the channel comprising the transport packets, the data space a can be effectively used, which is advantageous in terms of transmission speed.