Synchronization channel interference cancellation

摘要

Disclosed are various embodiments for cancellation of a PSCH signal and/or SSCH signal from an RX input signal. A PSCH sequence and SSCH sequence are extracted a PSCH and SSCH signal. A relative gain associated with the PSCH signal and SSCH signal are determined relative to a CPICH signal. A reconstructed PSCH and SSCH signal are generated and cancelled from the RX input signal.

主权项

1. A baseband processing module in a Wideband Code Division Multiple Access (WCDMA) Radio Frequency (RF) transceiver, the baseband processing module comprising:
an RX interface communicatively coupled to an RF front end of the WCDMA RF transceiver and operable to receive a baseband RX signal from the RF front end carrying a WCDMA signal; a synchronization channel interference cancellation module, comprising:
circuitry configured to reconstruct a primary synchronization channel (PSCH) signal;circuitry configured to reconstruct a secondary synchronization channel (SSCH) signal;circuitry configured to cancel the PSCH from the baseband RX signal based upon a channel estimation that is derived from power information and phase information received from a rake receiver of the WCDMA RF transceiver;circuitry configured to cancel the SSCH from the baseband RX signal based upon the channel estimation that is derived from the power information and the phase information received from the rake receiver of the WCDMA RF transceiver; andcircuitry configured to impart a delay on the baseband RX signal when reconstruction of at least one of the PSCH signal or the SSCH signal causes a signal delay.