System and method of coding cyclic redundancy check bits to enhance frequency reuse in a communications network
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United States of America Patent
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N/A
Issued Date -
Dec 19, 2002
app pub date -
Oct 10, 2001
filing date -
Jun 13, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method are provided for masking messages intended for a particular one of a plurality of receivers receiving messages on the same frequency in a satellite communication system. Each message contains a data portion and a parity portion. Before transmitting the message, the parity portion is masked by performing an exclusive-OR operation on the parity portion using a mask identified with the intended receiver. At the receiver, the parity portion of received messages are first unmasked by performing an exclusive-OR operation on the masked parity portion. The message is accepted by the receive only if the parity check is valid after the unmasking operation.
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