Broadcast signal transmission apparatus using transmission identifier and method using same
An apparatus for transmitting broadcasting signal using transmitter identification and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.
1. An apparatus for transmitting a broadcasting signal, the apparatus comprising:
a transmitter identification code generator configured to generate a transmitter identification sequence corresponding to a transmitter identification signal for identifying a transmitter; and
an antenna configured to transmit the broadcasting signal, the broadcasting signal generated by injecting the transmitter identification signal into a host broadcasting signal in a time domain,
wherein the transmitter identification code generator including
a tier 1 register unit corresponding to a first generator polynomial, and
a tier 2 register unit corresponding to a second generator polynomial, and
wherein the first generator polynomial corresponds to x 13 +x 4 +x 3 +x+1, and the second generator polynomial corresponds to x 13 +x 12 +x 10 +x 9 +x 7 +x 6 +x 5 +x+1.
2. The apparatus of claim 1 , wherein the tier 1 register unit includes registers which are preloaded to 0 except for x stage and a register which is preloaded to 1 for x stage, and
the tier 2 register unit includes registers which are preloaded by a 13-bit value corresponding to the transmitter.
3. The apparatus of claim 2 , wherein a msb of the 13-bit value corresponds to a x 13 register of the tier 2 register unit, and a lsb of the 13-bit value corresponds to a x register of the tier 2 register unit.
4. The apparatus of claim 3 , wherein the transmitter identification signal is generated by using the transmitter identification sequence having a length of 8191 bits.
5. The apparatus of claim 4 , wherein the transmitter identification signal is transmitted within a first preamble symbol period including a guard interval after a bootstrap of the host broadcasting signal.
6. The apparatus of claim 5 , wherein a first signal corresponding to a first bit of the transmitter identification signal is emitted simultaneously with a first sample of a first preamble symbol including the guard interval, and a second signal corresponding to a second bit of the transmitter identification signal is emitted simultaneously with a second sample of the first preamble symbol including the guard interval.
7. The apparatus of claim 6 , wherein the transmitter identification sequence
is emitted once within the first preamble symbol period when the first preamble symbol corresponds to Fast Fourier Transform (FFT) having a size of 8192, and
is repeated twice within the first preamble symbol period when the first preamble symbol corresponds to FFT having a size of 16384, and
is repeated four times within the first preamble symbol period when the first preamble symbol corresponds to FFT having a size of 32768.
8. The apparatus of claim 7 , wherein an even-numbered sequence has an opposite polarity to an odd-numbered sequence when the transmitter identification sequence is repeated.