Multiplex communications – Communication over free space – Repeater
Patent
1997-11-12
1999-02-23
Nguyen, Chau
Multiplex communications
Communication over free space
Repeater
370321, 370325, H04B 7212, H04B 7216
Patent
active
058751815
ABSTRACT:
In a satellite communication system a CDMA uplink signal including user data is transmitted in a packetized manner, the packets are switched on board the satellite by a packet switch before its downlink delivery. The packet switch routes the packets to the appropriate one of several outgoing downlink beams based on address information included in the packet header. Time Division Multiplexing (i.e., TDM) is used for downlink transmission. This invention constitutes an efficient multi-user satellite based communication system.
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T.Scarcella & R.V. Abbot, "Orbital Efficiency Through Satellite Digital Switching", IEEE Communications Magazine, 1983, pp. 38-46.
FCC, Washington, DC, Sep. 29, 1995 "Application of AT & T Corp. for Authority to Construct, Launch, and Operate the VoiceSpan System of Twelve Satellites in the Ka-Band Domestic and International Fixed-Satellite Service and to Construct Four Partial Ka-band Satellite Ground Spares", (Summary, Table of Contents, AT & T Application (pp. 1-97), Appendices A-G).
Hsu Liang
Rudrapatna Ashok N.
Sherman Matthew J.
Valdez Gabriel
AT & T Corp.
Nguyen Chau
Steinmetz Alfred G.
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