High efficiency signaling with minimum spacecraft hardware

Details High efficiency signaling with minimum spacecraft hardware High efficiency signaling with minimum spacecraft hardware

1997-07-24

2000-04-11

Chin, Stephen

Pulse or digital communications

Transceivers

Transmission interface between two stations or terminals

375219, 375377, 375200, 370320, 455 121, H04B 138, H04B 7216, H04B 7185, H04L 2300

Patent

active

060495669

ABSTRACT:
A method is disclosed for efficiently transmitting large numbers of data channels through a satellite (24). The method uses a block encoder (28) that encodes the data channels with a block code to produce an encoded uplink data stream. A modulator (30) modulates the encoded uplink data stream. A transmit antenna (32) then sends the resultant modulated uplink data stream (34) to the satellite (24). The satellite uses a satellite demodulator (48) and a switch (50) to produce an internal data stream consisting of selected data channels in the uplink data stream (34). The internal data stream is fed into a convolutional encoder (52). The output of the convolutional encoder (52) is connected to a satellite modulator (54). The satellite transmit antenna (56) then sends the resultant modulated downlink data stream (58) to a receiver.

REFERENCES:
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5473601 (1995-12-01), Rosen et al.
patent: 5805579 (1998-09-01), Erving et al.

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