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AssigneeDSpace Pty Ltd
InventorsMichael Robert Peake, Mark Rice, Timothy Clifton Giles
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The present invention relates to a communication method, system and signal, and in particular to a method and system for communicating information in a digital signal. It has particular application to satellite or terrestrial packet-based multi-user radio communication systems. A method for communicating information in a digital signal comprising data symbols is disclosed, wherein the information is encoded in a sequence characteristic of pilot symbols distributed amongst the data symbols, such that a receiver is able to determine the sequence characteristic and retrieve the transmitted information. The invention allows information to be encoded into a sequence characteristic of pilot, symbols, rather than relying on modulating such information onto the pilot symbols themselves. This allows a significantly larger number of pieces of information to be transmitted than hitherto possible, and the technique is more resistant to large frequency errors than prior techniques.
A method for communicating information in a digital signal comprising data symbols, wherein the information is encoded in a sequence characteristic of pilot symbols distributed amongst the data symbols, such that a receiver is able to determine the sequence characteristic and retrieve the transmitted information.
A receiver method for retrieving information from a digital signal, comprising determining a sequence characteristic of pilot symbols distributed amongst the data symbols included in the signal to thereby retrieve the information encoded in the characteristic.
A method for a receiver to process a digital signal, the signal comprising data symbols and a sequence of pilot symbols distributed amongst the data symbols, the method including the steps of:
A transmitter apparatus for communicating information in a digital signal comprising data symbols, wherein the information is encoded in a sequence characteristic of pilot symbols distributed amongst the data symbols, such that a receiver is able to determine the sequence characteristic and retrieve the transmitted information.
A receiver apparatus for retrieving information from a digital signal, including means for determining a sequence characteristic of pilot symbols distributed amongst the data symbols included in the signal to thereby retrieve information encoded in the characteristic.
A receiver apparatus for processing a digital signal, the signal comprising data symbols and a sequence of pilot symbols distributed amongst the data symbols, the apparatus including:
Dependencies are inferred from the claim text.