Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2008-01-29
2008-01-29
Nguyen, Hanh (Department: 2616)
Multiplex communications
Communication over free space
Repeater
C370S342000, C370S318000, C370S335000, C455S134000, C455S013400
Reexamination Certificate
active
07324470
ABSTRACT:
An FDD/CDMA transmission/reception system includes a CDMA transmitter and a CDMA receiver. The CDMA transmitter includes a plurality of transmission antennas, signal transmission units for transmitting transmission signals weighted by different values to the respective transmission antennas, and pilot signal transmission units for transmitting a plurality of different pilot signals to the respective transmission antennas. The CDMA receiver includes a reception unit for obtaining one received signal from the transmission signals from the plurality of transmission antennas of the CDMA transmitter in consideration of reception quality, and a unit for transmitting antenna control signals corresponding to reception power values of the received pilot signals to the CDMA transmitter.
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Ushirokawa Akihisa
Yoshida Shousei
Dickstein & Shapiro LLP
NEC Corporation
Nguyen Hanh
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