Patent ID: 8401124

Claim:
A method for detecting a pilot sequence signal comprising: extracting a service data signal from a received signal when the service data signal in the received signal is determined to be correct, wherein the service data signal and the pilot sequence signal in the received signal are arranged in the same time slot; and acquiring the pilot sequence signal from the received signal with the service data signal extracted; wherein extracting the service data signal from the received signal comprises: demodulating the received signal; subjecting the demodulated signal to a hard decision for output as a service data signal of a transmitter; or subjecting the demodulated signal to channel decoding and de-interleaving and then to the same encoding and interleaving as that at the transmitter for output as the service data signal of the transmitter, wherein an error correction is performed for the demodulated signal during the channel decoding and de-interleaving; subjecting the service data signal of the transmitter to the same modulation process as that at the transmitter, and reconstructing the modulated signal based on an available channel estimation result to acquire recovered service data signals; combining the recovered service data signals; and removing the combined service data signals from the received signal to acquire the received signal with the service data signal extracted.