Mobile communication system capable of transmitting and receivin

Details Mobile communication system capable of transmitting and receivin Mobile communication system capable of transmitting and receivin

1994-12-06

1996-04-23

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

370 84, 375205, 375207, H04J 1300

Patent

active

055110681

ABSTRACT:
In a communication system from a mobile station to a base station, a transmitter of the mobile station subjects a sequence of transmission signals to both of time division multiple access (TDMA) and code division multiple access (CDMA) to produce a radio output signal located in a time slot of a frame. The radio output signal obtained by the TDMA and CDMA is filtered or inversely spread to remove interference and noise from the radio output signal by the use of an adaptive filter which has taps controlled by an adaptive controller.

REFERENCES:
patent: 4754453 (1988-06-01), Eizenhofer
patent: 4799252 (1989-01-01), Eizenhoffer et al.
patent: 5295153 (1994-03-01), Gudmundson
patent: 5345439 (1994-09-01), Marston
patent: 5410568 (1995-04-01), Schilling
patent: 5420850 (1995-05-01), Umeda et al.
J. Ruprecht, et al., "Code Time Divisional Multiple Access: An Indoor Cellular System", IEEE, vol. 2, May 13, 1992, pp. 736-739.
A. Farago, et al., "Nearly Optimum Scheduling in Mobil CDMA Packet Radio Networks", IEEE, vol. 2, Oct. 14, 1992, pp. 769-773.

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