RECEIVER FOR RECEIVING DATA IN A BROADCAST SYSTEM USING REDUNDANCY DATA
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Abstract
A receiver for receiving data in a broadcast system includes a broadcast receiver that receives, via the broadcast system, a receiver input data stream including plural channel symbols represented by constellation points in a constellation diagram. A demodulator demodulates the channel symbols into codewords and a decoder decodes the codewords into output data words. A broadband receiver obtains redundancy data via a broadband system, the redundancy data for a channel symbol including one or more least robust bits of the channel symbol or a constellation subset identifier indicating a subset of constellation points including the constellation point representing the channel symbol. The demodulator and/or the decoder is configured to use the redundancy data to demodulate the respective channel symbol and to decode the respective codeword, respectively.
34 Citations
29 Claims
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1-15. -15. (canceled)
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16. :
- A receiver for receiving data, comprising;
a broadcast receiver configured to receive, via a broadcast system, a receiver input data stream comprising a plurality of channel symbols represented by constellation points in a constellation diagram; a demodulator configured to demodulate said channel symbols into codewords; a decoder configured to decode said codewords into output data words; a broadband receiver configured to obtain redundancy data via a broadband system, said redundancy data for a channel symbol including one or more least robust bits of the channel symbol or a constellation subset identifier indicating a subset of constellation points including the constellation point representing the channel symbol; wherein said demodulator and/or said decoder is further configured to use said redundancy data to demodulate the respective channel symbol and to decode the respective codeword, respectively. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29)
- A receiver for receiving data, comprising;
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26. :
- A receiving method for receiving data, comprising;
receiving, via a broadcast system, a receiver input data stream comprising a plurality of channel symbols represented by constellation points in a constellation diagram; demodulating said channel symbols into codewords; decoding said codewords into output data words; obtaining redundancy data via a broadband system, said redundancy data for a channel symbol including one or more least robust bits of the channel symbol or a constellation subset identifier indicating a subset of constellation points including the constellation point representing the channel symbol; wherein said demodulating and/or said decoding is configured to use said redundancy data to demodulate the respective channel symbol and to decode the respective codeword, respectively. - View Dependent Claims (27)
- A receiving method for receiving data, comprising;
Specification