Method and system for detecting preambles in a multi-cell...

Details Method and system for detecting preambles in a multi-cell... Method and system for detecting preambles in a multi-cell...

2011-08-02

2011-08-02

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S343000, C375S355000, C375S365000, C375S367000, C375S142000

Reexamination Certificate

active

07991083

ABSTRACT:
A method and system is provided for detecting preambles in a multi-cell communication system. The method detects preambles reliably even in the presence of interference caused by multiple cells reusing the same frequency in the multi-cell communication system. After receiving a signal in the receiving period, the time domain signal is sampled and transformed into the frequency domain vector. The correlation vector is calculated with the frequency domain vector and pseudonoise code of the wireless station. The presence of a preamble is verified if the value in the correlation vector exceeds a predetermined threshold.

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