High efficiency signaling with selective coding and...

Details High efficiency signaling with selective coding and... High efficiency signaling with selective coding and...

H - Electricity

03

M

H03M 13/29 (2006.01) H04B 7/185 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2358731

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.

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