Apparatus for analyzing transmitter identification signal and method using the same

1. An apparatus for analyzing a transmitter identification (TxID) signal, comprising a processor and a memory storing at least one instruction to be executed by the processor, wherein the at least one instruction is configured to:

decode a bootstrap of a received signal;

perform a host signal cancellation process for the received signal, thereby generating a host-signal-cancelled received signal;

calculate a correlation value between a signal corresponding to the host-signal-cancelled received signal and a signal corresponding to a TxID sequence; and

generate information about a channel between a transmitter corresponding to the TxID sequence and a receiver using the correlation value,

wherein the TxID sequence is generated by using a tier 1 register unit and a tier 2 register unit at the transmitter,

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,

wherein the tier 2 register unit includes registers which are preloaded corresponding to a 13-bit value assigned to the transmitter.

2. The apparatus of claim 1 , wherein the at least one instruction is further configured to:

average frame signals corresponding to the host-signal-cancelled received signal.

3. The apparatus of claim 2 , wherein the host signal cancellation process is configured to cancel a cancellation signal, corresponding to a preamble pilot included in a host broadcasting signal, from the received signal.

4. The apparatus of claim 2 , wherein the host signal cancellation process is configured to cancel a cancellation signal, corresponding to an entire host broadcasting signal, from the received signal.

5. The apparatus of claim 4 , wherein the cancellation signal is generated using at least a portion of a preamble, which is reconstructed through preamble decoding including channel decoding, and a preamble pilot, which is regenerated using the bootstrap.

6. The apparatus of claim 4 , wherein the cancellation signal is generated using a hard-decision signal, which is generated through modulation of bits reconstructed through hard-decision decoding, and a preamble pilot, which is regenerated using the bootstrap.

7. The apparatus of claim 6 , wherein the modulation is Quadrature Phase-Shift Keying (QPSK).

8. The apparatus of claim 2 , wherein averaging is performed using the correlation value, and the signal corresponding to the host-signal-cancelled received signal is the host-signal-cancelled received signal.

9. The apparatus of claim 2 , wherein averaging is performed using the host-signal-cancelled received signal, and the signal corresponding to the host-signal-cancelled received signal is a signal generated through averaging.

10. The apparatus of claim 3 , wherein the preamble pilot is generated using a preamble_structure field included in the bootstrap.

11. A method for analyzing a transmitter identification (TxID) signal, comprising:

decoding a bootstrap of a received signal;

performing a host signal cancellation process for the received signal, thereby generating a host-signal-cancelled received signal;

calculating a correlation value between a signal corresponding to the host-signal-cancelled received signal and a signal corresponding to a TxID sequence; and

generating information about a channel between a transmitter corresponding to the TxID sequence and a receiver using the correlation value,

wherein the TxID sequence is generated by using a tier 1 register unit and a tier 2 register unit at the transmitter,

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,

wherein the tier 2 register unit includes registers which are preloaded corresponding to a 13-bit value assigned to the transmitter.

12. The method of claim 11 , further comprising:

averaging frame signals corresponding to the host-signal-cancelled received signal.

13. The method of claim 12 , wherein the host signal cancellation process is configured to cancel a cancellation signal, corresponding to a preamble pilot included in a host broadcasting signal, from the received signal.

14. The method of claim 11 , wherein the host signal cancellation process is configured to cancel a cancellation signal, corresponding to an entire host broadcasting signal, from the received signal.

15. The method of claim 14 , wherein the cancellation signal is generated using at least a portion of a preamble, which is reconstructed through preamble decoding including channel decoding, and a preamble pilot, which is regenerated using the bootstrap.

16. The method of claim 14 , wherein the cancellation signal is generated using a hard-decision signal, which is generated through modulation of bits reconstructed through hard-decision decoding, and a preamble pilot, which is regenerated using the bootstrap.

17. The method of claim 16 , wherein the modulation is Quadrature Phase-Shift Keying (QPSK).

18. The method of claim 12 , wherein averaging is performed using the correlation value, and the signal corresponding to the host-signal-cancelled received signal is the host-signal-cancelled received signal.

19. The method of claim 12 , wherein averaging is performed using the host-signal-cancelled received signal, and the signal corresponding to the host-signal-cancelled received signal is a signal generated through averaging.

20. The method of claim 13 , wherein the preamble pilot is generated using a preamble_structure field included in the bootstrap.