Signal detection using a CDMA receiver

Details Signal detection using a CDMA receiver Signal detection using a CDMA receiver

2006-02-07

2006-02-07

Chin, Stephen (Department: 2634)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S150000

Reexamination Certificate

active

06996158

ABSTRACT:
A code division multiple access (CDMA) receiver detects the presence of differently formatted signals (e.g., global system for mobile communications (GSM) signals) by programming a CDMA searcher co-processor, which includes a digital filter, with tap weights that correlate with a known sequence within the differently formatted signals. If the tap weights correlate to a received signal, the receiver produces an indication that a differently formatted signal is present. Once differently formatted signals are detected, specific hardware and/or software may be implemented to receive and process the differently formatted signals.

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