Apparatus and method for transmitting and receiving data using space-time block coding
First Claim
1. A transmitter with four transmit antennas in a communication system, comprising:
- an encoder for generating a code symbol vector by encoding an input symbol sequence in a predetermined coding method;
a grouping block for permuting elements of the code symbol vector to produce a permuted code symbol vector by multiplying the code symbol vector by a permutation antenna grouping pattern selected among predetermined permutation antenna grouping patterns according to a predetermined order and outputting the permuted code symbol vector as a grouping symbol vector; and
an Alamouti-type encoder for encoding the grouping symbol vector in an Alamouti-type scheme and transmitting Alamouti-type coded symbols through the four transmit antennas.
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Accused Products
Abstract
An STFBC coding apparatus for a transmitter with four Tx antennas is provided. In the transmitter, an encoder generates a code symbol vector by encoding an input symbol sequence in a predetermined coding method. A grouping block permutes the elements of the code symbol vector by multiplying the code symbol vector by a permutation antenna grouping pattern selected among predetermined permutation antenna grouping patterns according to a predetermined order and outputs the permuted code symbol vector as a grouping symbol vector. An Alamouti encoder encodes the grouping symbol vector in an Alamouti scheme and transmits Alamouti-coded symbols through the four transmit antennas.
63 Citations
20 Claims
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1. A transmitter with four transmit antennas in a communication system, comprising:
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an encoder for generating a code symbol vector by encoding an input symbol sequence in a predetermined coding method;
a grouping block for permuting elements of the code symbol vector to produce a permuted code symbol vector by multiplying the code symbol vector by a permutation antenna grouping pattern selected among predetermined permutation antenna grouping patterns according to a predetermined order and outputting the permuted code symbol vector as a grouping symbol vector; and
an Alamouti-type encoder for encoding the grouping symbol vector in an Alamouti-type scheme and transmitting Alamouti-type coded symbols through the four transmit antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transmission method for four transmit antennas in a communication system, comprising the steps of:
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generating a code symbol vector by encoding an input symbol sequence in a predetermined coding method;
selecting a permutation antenna grouping pattern among predetermined permutation antenna grouping patterns according to a predetermined order, permuting elements of the code symbol vector to produce a permuted code symbol vector by multiplying the code symbol vector by the selected permutation antenna grouping pattern, and outputting the permuted code symbol vector as a grouping symbol vector; and
encoding the grouping symbol vector in an Alamouti-type scheme and transmitting Alamouti-type coded symbols through the four transmit antennas. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A transmission method for four transmit antennas in a communication system, comprising the steps of:
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generating a code symbol vector by encoding an input symbol sequence in a predetermined coding method;
selecting a permutation matrix among predetermined permutation matrices according to a predetermined formula, permuting elements of the code symbol vector by mapping the code symbol vector to the selected permutation matrix, and outputting the permuted code symbol vector; and
encoding the permuted code symbol vector in an Alamouti-type scheme and transmitting Alamouti-type coded symbols through the four transmit antennas. - View Dependent Claims (16, 17)
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18. A transmitter with four transmit antennas in a communication system, comprising:
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an encoder for generating a code symbol vector by encoding an input symbol sequence in a predetermined coding method;
a permutation block for permuting elements of the code symbol vector by mapping the code symbol vector to a selected permutation matrix among predetermined permutation matrices according to a predetermined formula, and outputting the permuted code symbol vector; and
an Alamouti-type encoder for encoding the permuted code symbol vector in an Alamouti-type scheme and transmitting Alamouti-type coded symbols through the four transmit antennas. - View Dependent Claims (19, 20)
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Specification