Multiplex communications – Channel assignment techniques
Patent
1997-01-31
1999-08-24
Hofsass, Jeffery A.
Multiplex communications
Channel assignment techniques
370337, 370329, H04L 1228
Patent
active
059433400
ABSTRACT:
A channel assignment controlling system is disclosed that comprises a terminal unit, a base station, and a channel assignment controlling portion. The terminal unit comprises a demodulator, a modulator, and a channel controller that controls channels and time slots of the modulator. The base station comprises an extractor, a signal detector, a demodulator, a unique word detector, and a modulator. The extractor inputs an output signal of the terminal unit and extracts a signal with the frequency of the channel of the base station. The signal detector determines whether or not a signal has been received. The demodulator demodulates the input signal. The unique word detector detects a unique word and outputs data from which preamble has been removed from the input signal corresponding to output signals of the signal detector and the unique word detector. The channel assignment controlling portion determines channels and time slots corresponding to an output signal of the base station.
REFERENCES:
patent: 5280630 (1994-01-01), Wang
patent: 5471671 (1995-11-01), Wang et al.
patent: 5507008 (1996-04-01), Kanai et al.
patent: 5619507 (1997-04-01), Tsuda
patent: 5805982 (1998-09-01), Hulsebosch
Hofsass Jeffery A.
NEC Corporation
Slavitt Mitchell
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