CDMA receiver

Details CDMA receiver CDMA receiver

2007-01-30

2007-01-30

Chin, Stephen (Department: 2634)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

10074939

ABSTRACT:
In a CDMA receiver for applying despread processing to direct wave or delayed waves that arrive via each path of multiple paths, applying synchronous detection processing to the despread signals obtained, combining the detection signals of respective paths and discriminating the received data on the basis of the combined signal, (1) a weighting unit provided for every path measures power of delayed received waves that arrive via its own path and, if the reception power is less than a set level (breakpoint level), subjects an output signal to weighting conforming to the reception power; (2) a RAKE combiner combines signals output from the weighting units of the respective paths; and (3) a data discrimination unit discriminates receive data based upon the output signal of the combiner.

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Notification of Reasons for Refusal dated Oct. 18, 2005 with translation.

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