Broadcast signal transmitting apparatus, broadcast signal receiving apparatus, broadcast signal transmitting method, and broadcast signal receiving method
AssigneeLG Electronics Inc.
InventorsJongseob Baek, Woosuk Ko, Sungryong Hong
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Abstract
Disclosed herein is a method of receiving a broadcast signal. The method comprises receiving the broadcast signal; an Orthogonal Frequency Division Multiplexing (OFDM) demodulating on the received broadcast signal; parsing at least one signal frame from the demodulated broadcast signal to extract service data or service component data; converting the service data or service component data into bits; decoding the converted bits; and outputting a data stream comprising the decoded bits.
Claims14
A reception apparatus for receiving a broadcast signal, comprising:
- a receiver configured to receive the broadcast signal including a signal frame;
- a demodulator configured to demodulate the received broadcast signal by an Orthogonal Frequency Division Multiplexing (OFDM) scheme,
- the signal frame including a preamble and a sub-frame,
- the preamble including frequency interleaver information representing whether a frequency interleaver is enabled or bypassed for the sub-frame;
- in response to the frequency interleaver information having a first value, a frequency deinterleaver deinterleaves data of the sub-frame based on a deinterleaving sequence,
- in response to the frequency interleaver information having a second value, a frequency deinterleaver is not used;
- a decoder configured to decode the signal frame.
A method of receiving a broadcast signal, comprising:
- receiving the broadcast signal including a signal frame;
- demodulating the received broadcast signal by an Orthogonal Frequency Division Multiplexing (OFDM) scheme,
- the signal frame including a preamble and a sub-frame,
- the preamble including frequency interleaver information representing whether a frequency interleaver is enabled or bypassed for the sub-frame;
- in response to the frequency interleaver information having a first value, frequency deinterleaving data of the sub-frame based on a deinterleaving sequence,
- in response to the frequency interleaver information having a second value, frequency deinterleaving is not used;
- decoding the signal frame.
A method for transmitting a broadcast signal, comprising:
- encoding service data;
- building a signal frame including a preamble and a sub-frame including the service data,
- the preamble including frequency interleaver information representing whether a frequency interleaver is enabled or bypassed for the sub-frame;
- frequency interleaving data of the sub-frame selectively based on an interleaving sequence, wherein when the frequency interleaving is enabled, the frequency interleaver information has a first value, or when the frequency interleaving is not used, the frequency interleaver information has a second value;
- transmitting the broadcast signal including the signal frame.
An apparatus for transmitting a broadcast signal, comprising:
- an encoder configured to encode service data;
- a builder configured to build a signal frame including a preamble and a sub-frame including the service data,
- the preamble including frequency interleaver information representing whether a frequency interleaver is enabled or bypassed for the sub-frame;
- a frequency interleaver configured to interleave data of the sub-frame selectively based on an interleaving sequence, wherein when the frequency interleaver is enabled, the frequency interleaver information has a first value, or when the frequency interleaver is not used, the frequency interleaver information has a second value;
- a transmitter configured to transmit the broadcast signal including the signal frame.
Dependencies are inferred from the claim text.