Abstract:
A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal from a first frequency band in a single frame including at least one frequency band, demodulating the received signal by an orthogonal frequency division multiplexing (OFDM) method and parsing the signal frame, acquiring a symbol stream of a service stream from the at least one frequency band included in the parsed signal frame, demapping symbols included in the symbol stream and outputting the demapped symbols to sub streams, multiplexing the output sub streams and outputting one bit stream, and deinterleaving and error-correction-decoding the output bit stream.
Abstract:
The present invention relates to a method of transmitting and a method of receiving signals, and corresponding apparatus. One aspect of the present invention relates to a method of obtaining a field for indicating a time de-interleaving depth from a layer 1 (L1) header of preamble symbols.
Abstract:
According to one embodiment, a method of transmitting at least one broadcasting signal having PLP (Physical Layer Pipe) data and preamble data includes: encoding the PLP data; encoding the preamble data; mapping the encoded PLP data to PLP data symbols by QAM (Quadrature Amplitude Modulation) modulations; mapping the encoded preamble data to preamble data symbols by QAM modulations; building a signal frame including the PLP data symbols and the preamble data symbols, wherein the preamble data symbols include first signaling information and second signaling information, wherein the first signaling information is for the second signaling information and includes size information of the second signaling information, and wherein the second signaling information is for the PLP data symbols; modulating the signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method; and transmitting the modulated signal frame.
Abstract:
A method of transmitting a broadcasting signal is provided. The method includes encoding data; encoding signaling data by an LDPC (Low Density Parity Check) scheme; building a signal frame based on at least one preamble data symbol having the encoded signaling data and a data slice having the encoded data; inserting at least one pilot into the signal frame with a specific pattern and modulating the signal frame by an OFDM (Orthogonal Frequency Division Multiplexing) method; and transmitting the modulated signal frame. A signaling block having the signaling data is repeated in the at least one preamble data symbol in a frequency domain by a bandwidth. The band width of the signaling block corresponds to a number of active subcarriers assigned to a single channel.
Abstract:
A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal from a first frequency band in a single frame including at least one frequency band, demodulating the received signal by an orthogonal frequency division multiplexing (OFDM) method and parsing the signal frame, acquiring a symbol stream of a service stream from the at least one frequency band included in the parsed signal frame, demapping symbols included in the symbol stream and outputting the demapped symbols to sub streams, multiplexing the output sub streams and outputting one bit stream, and deinterleaving and error-correction-decoding the output bit stream.
Abstract:
A method of transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are provided. The method includes receiving the signal of a first frequency band, obtaining Layer-1 (L1) information from a preamble of a first time-frequency slicing (TFS) signal frame of the received signal, the layer-1 information including a radio frequency (RF) channel identifier of the first TFS signal frame including a physical layer pipe (PLP) in a super frame of TFS structure and including an identifier of a starting radio RF channel that can receive the PLP in the first TFS signal frame, parsing the first TFS signal frame using the L1 information and obtaining a PLP of the first TFS signal frame, and converting the PLP to a service stream.
Abstract:
The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient L1 signaling method for an efficient transmitter and an efficient receiver using the efficient L1 signaling method for an efficient cable broadcasting.
Abstract:
A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method for receiving the signal includes receiving (S210) the signal in a first frequency band, identifying (S220) a first pilot signal including, a cyclic prefix obtained by frequency-shifting a first portion of an useful portion of the first pilot signal and a cyclic suffix obtained by frequency-shifting a second portion of the useful portion of the first pilot signal from the received signal, demodulating (S220) a signal frame including a physical layer pipe (PLP) to which a service stream is converted, by an orthogonal frequency division multiplexing (OFDM) scheme, using information set in the first pilot signal, parsing (S230) the signal frame and obtaining the PLP and obtaining (S240) the service stream from the PLP.
Abstract:
The present invention relates to a method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of extracting PLP from data slices.
Abstract:
The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient L1 signaling method for an efficient transmitter and an efficient receiver using the efficient L1 signaling method for an efficient cable broadcasting.