Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal

1. A method of transmitting a signal, the method comprising:

converting a service stream to a physical layer pipe (PLP), the service stream for delivering a service;

building a time-frequency slicing (TFS) signal frame, the TFS signal frame including the PLP and layer-1 information;

modulating the TFS signal frame according to an orthogonal frequency division multiplexing (OFDM) scheme in order to generate a modulated signal; and

transmitting the modulated signal via at least one radio frequency (RF) band signal,

wherein the layer-1 information includes an index of a current RF channel within the TFS signal frame and an identifier of an RF channel that includes the PLP in a first TFS signal frame of a super frame of TFS structure,

wherein the identifier of the RF channel is included in a configurable part of the layer-1 information,

wherein the configurable part is changed in a unit of the super frame,

wherein the TFS signal frame includes signal frame identification information that comprises an effective portion, a cyclic prefix obtained by frequency-shifting a first portion of the effective portion, and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion, and

wherein the first portion is a foremost part of the effective portion and the second portion is a rearmost part of the effective portion.

2. A method of receiving a signal, the method comprising:

receiving a signal of a frequency band;

obtaining layer-1 information from a time-frequency slicing (TFS) signal frame of the received signal, the layer-1 information including an index of a current radio frequency (RF) channel within the TFS signal frame and an identifier of an RF channel that includes a physical layer pipe (PLP) in a first TFS signal frame of a super frame of TFS structure;

parsing the TFS signal frame using the layer-1 information;

obtaining the PLP in the TFS signal frame; and

converting the PLP to a service stream,

wherein the identifier of the RF channel is included in a configurable part of the layer-1 information,

wherein the configurable part is changed in a unit of the super frame,

wherein the TFS signal frame includes signal frame identification information that comprises an effective portion, a cyclic prefix obtained by frequency-shifting a first portion of the effective portion, and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion, and

wherein the first portion is a foremost part of the effective portion and the second portion is a rearmost part of the effective portion.

3. An apparatus for transmitting a signal, the apparatus comprising:

a coding and modulation unit configured encode a service stream according to an error-correction-encoding scheme and interleave the encoded service stream, the service stream for delivering a service;

a mapper configured to map bits of the interleaved service stream to symbols of a physical layer pipe (PLP);

a frame builder configured to build a time-frequency slicing (TFS) signal frame including the PLP and layer-1 information, the layer-1 information including an index of a current radio frequency (RF) channel within the TFS signal frame and an identifier of an RF channel that includes the PLP in a first TFS signal frame of a super frame of TFS structure;

a modulator configured to modulate the TFS signal frame according to an orthogonal frequency division multiplexing (OFDM) scheme in order to generate a modulated signal; and

a transmitter configured to transmit the modulated signal via at least one RF signal,

wherein the identifier of the RF channel is included in a configurable part of the layer-1 information,

wherein the configurable part is changed in a unit of the super frame,

wherein the TFS signal frame includes signal frame identification information that comprises an effective portion, a cyclic prefix obtained by frequency-shifting a first portion of the effective portion, and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion, and

wherein the first portion is a foremost part of the effective portion and the second portion is a rearmost part of the effective portion.

4. An apparatus for receiving a signal, the apparatus comprising:

a receiver configured to receive a signal of a frequency band;

a demodulator configured to obtain layer-1 information from a time-frequency slicing (TFS) signal frame of the received signal, the layer-1 information including an index of a current radio frequency (RF) channel within the TFS signal frame and an identifier of an RF channel that includes a physical layer pipe (PLP) in a first TFS signal frame of a super frame of TFS structure;

a frame parser configured to parse the TFS signal frame using the layer-1 information and obtain the PLP from the TFS signal frame;

a symbol-demapper configured to symbol-demap symbols of the PLP to bits of a service stream; and

a decoding demodulator configured to:

deinterleave the bits of the service stream; and

decode the deinterleaved bits according to an error-correction decoding scheme,

wherein the identifier of the RF channel is included in a configurable part of the layer-1 information,

wherein the configurable part is changed in a unit of the super frame,

wherein the TFS signal frame includes signal frame identification information that comprises an effective portion, a cyclic prefix obtained by frequency-shifting a first portion of the effective portion, and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion, and

wherein the first portion is a foremost part of the effective portion and the second portion is a rearmost part of the effective portion.