Communication system

Details Communication system Communication system

2005-05-17

2005-05-17

Phu, Phuong (Department: 2631)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S144000

Reexamination Certificate

active

06895038

ABSTRACT:
A low-cost communication system utilizing a code division multiple access, which controls scale-up of an apparatus due to the provision of an interference suppressing function in a base transceiver station, prevents the reduction of channel utilization efficiency, and enables a high-quality communication. Conventionally, a signal obtained through an interference cancellation stage process has been processed at subsequent cascade-connected stages. The interference cancellation stage process has been carried out by cascade-connecting several circuits performing the same process in a multi-stage interference-canceling device. However, in the present invention, by performing a demodulation process for generating replica signals, feeding back the replica signals to a correlation circuit for another demodulation process, and repeating the same signal process, the interference cancellation stage process is carried out. Such a configuration enables reduction of hardware.

REFERENCES:
patent: 5467368 (1995-11-01), Takeuchi et al.
patent: 5533012 (1996-07-01), Fukasawa et al.
patent: 6137788 (2000-10-01), Sawahashi et al.
patent: 6192067 (2001-02-01), Toda et al.
patent: 6574270 (2003-06-01), Madkour et al.
patent: 08206935 (1996-08-01), None
patent: 08340919 (1996-12-01), None

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