Data stream transmission preprocessing
First Claim
1. A method of pre-processing a data stream for transmission, comprising:
- receiving the data stream for transmission;
forming blocks of samples from the data stream;
inverse Fourier transforming the blocks of samples forming multi-carrier signal symbols; and
selecting sets of k multi-carrier signal symbols, and time expanding each of the sets of the k multi-carrier signal symbols into sets of n multi-carrier signal symbols, where n is greater than k.
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Abstract
Embodiments of transmission data stream pre-processing are disclosed. A method includes receiving the data stream for transmission, forming blocks of samples from the data stream, inverse Fourier transforming the blocks of samples forming multi-carrier signal symbols, selecting sets of k multi-carrier signal symbols and time expanding each of the sets of the k multi-carrier signal symbols into sets of n multi-carrier signal symbols, where n is greater than k, and transmitting each of the n multi-carrier signal symbols. The time expansion can be accomplished by coding the coding the sets of k multi-carrier signal symbols.
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Citations
35 Claims
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1. A method of pre-processing a data stream for transmission, comprising:
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receiving the data stream for transmission;
forming blocks of samples from the data stream;
inverse Fourier transforming the blocks of samples forming multi-carrier signal symbols; and
selecting sets of k multi-carrier signal symbols, and time expanding each of the sets of the k multi-carrier signal symbols into sets of n multi-carrier signal symbols, where n is greater than k. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of pre-processing a data stream for transmission, comprising:
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receiving the data stream;
forming blocks of samples from the data stream;
generating coded patterns of each of the blocks of samples; and
inverse Fourier transforming the blocks of samples forming coded patterns of multi-carrier signal symbols. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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33. The method of pre-processing a data stream of claim 32, wherein code of interfering transmitters is determined by comparing received symbols with known training sequences, and deducing the coding of the interfering transmitters.
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33-1. A wideband, low-power transmission system comprising:
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a transmitter comprising;
means for receiving the data stream for transmission;
means for forming blocks of samples from the data stream;
means for inverse Fourier transforming the blocks of samples forming multi-carrier signal symbols;
means for selecting sets of k multi-carrier signal symbols, and time expanding each of the sets of the k multi-carrier signal symbols into sets of n multi-carrier signal symbols, where n is greater than k;
means for transmitting each of the n multi-carrier signal symbols;
a receiver comprising;
means for receiving the n multi-carrier signal symbols;
means for time compressing n sets received multi-carrier signal symbols to k multi-carrier symbols;
means for Fourier transforming the multi-carrier symbols forming blocks of samples; and
means for forming a data stream from the blocks of samples.
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34. A receiver comprising;
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means for receiving the n multi-carrier signal symbols;
means for time compressing n sets received multi-carrier signal symbols to k multi-carrier symbols;
means for Fourier transforming the multi-carrier symbols forming blocks of samples; and
means for forming a data stream from the blocks of samples.
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35. A networked of electronic multi-media components, wherein each of the electronic components comprises a transmitter, each transmitter comprising:
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means for receiving the data stream for transmission;
means for forming blocks of samples from the data stream;
means for inverse Fourier transforming the blocks of samples forming multi-carrier signal symbols;
means for selecting sets of k multi-carrier signal symbols, and time expanding each of the sets of the k multi-carrier signal symbols into sets of n multi-carrier signal symbols, where n is greater than k;
means for transmitting each of the n multi-carrier signal symbol.
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Specification