Multi-user demodulator for CDMA spectrum spreading communication

Details Multi-user demodulator for CDMA spectrum spreading communication Multi-user demodulator for CDMA spectrum spreading communication

1997-01-10

1999-09-21

Hofsass, Jeffery A.

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

375200, 375229, 375349, H04K 100

Patent

active

059563338

ABSTRACT:
A multi-user demodulator eliminates synchronization problems without interference cancellation. A threshold process is applied to a despread signal to extract each user's signal. The extracted signals are respread, and those respread signals other than a specifier user's signal are subtracted from the received signal to ideally extract the specific user's signal.

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