Device for transmitting broadcast signals, device for receiving broadcast signals, method for transmitting broadcast signals, and method for receiving broadcast signals

A method of receiving a broadcast signal, the method comprising:

• receiving the broadcast signal including a signal frame;
• demodulating the received broadcast signal by an Orthogonal Frequency Division Multiplex (OFDM) scheme;
• acquiring the signal frame from the demodulated broadcast signal, wherein the signal frame includes service data and signaling data for signaling the service data;
• decoding the service data in the signal frame and outputting a baseband packet including the decoded service data;
• encapsulating the baseband packet into a container packet, wherein the container packet includes a header and a payload, wherein the header includes indication information indicating a start point of the container packet, and wherein the payload includes the baseband packet;
• and
• slicing the container packet into data units having a predefined length and outputting the data units for system decoding.

An apparatus for receiving a broadcast signal, the apparatus comprising:

• a receiver to receive the broadcast signal including a signal frame;
• a demodulator to demodulate the received broadcast signal by an Orthogonal Frequency Division Multiplex (OFDM) scheme;
• a frame parser to acquire the signal frame from the demodulated broadcast signal, wherein the signal frame includes service data and signaling data for signaling the service data;
• a decoder to decode the service data in the signal frame and output a baseband packet including the decoded service data;
• and
• a container encapsulator to encapsulate the baseband packet into a container packet, slice the container packet into data units having a predefined length, and output the data units for system decoding, wherein the container packet includes a header and a payload, wherein the header includes indication information indicating a start point of the container packet, and wherein the payload includes the baseband packet.