Transmitting digital signal
First Claim
1. A method for transmitting digital symbols, in which method at least two symbols belonging to the same transmission block are read in the transmitter, characterized by forming a block code comprising channel symbols from the symbols belonging to the transmission block by performing at least one of the following operations to each symbol:
- repetition, conjugation, multiplying by a weighting coefficient, summing two or more symbols, and multiplying at least one symbol belonging to the transmission block by a first nonzero weighting coefficient and at least one symbol belonging to the transmission block by a second nonzero weighting coefficient, and having the division ratio of the first and second weighting coefficients differ from values ±
1 and ±
j, and transmitting the formed channel symbols via two or more transmission antenna routes.
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Accused Products
Abstract
An arrangement for coding digital symbols and transmitting them through at least two antennas. A coder reads at least two symbols belonging to the same transmission block and forms channel symbols of the symbols of the transmission block by means of a block code. The coder multiplies at least one symbol belonging to the transmission block by a first nonzero weighting coefficient and at least one symbol belonging to the transmission block by a second nonzero weighting coefficient, and the division ratio of the first and second weighting coefficients differs from values ±1, ±j and ±1/sqrt(2). The thus formed channel symbols are transmitted to the radio path through the antennas.
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Citations
47 Claims
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1. A method for transmitting digital symbols, in which method at least two symbols belonging to the same transmission block are read in the transmitter, characterized by
forming a block code comprising channel symbols from the symbols belonging to the transmission block by performing at least one of the following operations to each symbol: - repetition, conjugation, multiplying by a weighting coefficient, summing two or more symbols, and multiplying at least one symbol belonging to the transmission block by a first nonzero weighting coefficient and at least one symbol belonging to the transmission block by a second nonzero weighting coefficient, and having the division ratio of the first and second weighting coefficients differ from values ±
1 and ±
j, and transmitting the formed channel symbols via two or more transmission antenna routes. - 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)
- repetition, conjugation, multiplying by a weighting coefficient, summing two or more symbols, and multiplying at least one symbol belonging to the transmission block by a first nonzero weighting coefficient and at least one symbol belonging to the transmission block by a second nonzero weighting coefficient, and having the division ratio of the first and second weighting coefficients differ from values ±
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24. An arrangement for transmitting digital symbols, comprising a coder (308) for coding digital symbols into channel symbols, and one or more transmission antennas (314 to 318) connected to the coder (308) for transmitting the channel symbols, characterized in that
the coder (308) is arranged to read at least two symbols belonging to the same transmission block and, by means of a block code defining the coding, to form channel symbols of the symbols belonging to the transmission block by performing at least one of the following operations to each symbol: - repetition, conjugation, multiplying by a weighting coefficient, summing two or more symbols, and that the coder (308) is arranged to multiply at least one symbol belonging to the transmission block by a first nonzero weighting coefficient and at least one symbol belonging to the transmission block by a second nonzero weighting coefficient, the division ratio of the first and second weighting coefficients differing from values ±
1 and ±
j, andthe arrangement is arranged to transmit the formed channel symbols via two or more transmission antenna routes (314 to 318) generated by means of said one or more antennas. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
- repetition, conjugation, multiplying by a weighting coefficient, summing two or more symbols, and that the coder (308) is arranged to multiply at least one symbol belonging to the transmission block by a first nonzero weighting coefficient and at least one symbol belonging to the transmission block by a second nonzero weighting coefficient, the division ratio of the first and second weighting coefficients differing from values ±
Specification