METHOD AND APPARATUS FOR ACHIEVING TRANSMIT DIVERSITY AND SPATIAL MULTIPLEXING USING ANTENNA SELECTION BASED ON FEEDBACK INFORMATION
First Claim
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1. A method of achieving transmit diversity in a wireless communication system, the method comprising:
- encoding and modulating data stream based on feedback information;
demultiplexing symbols to at least one encoder block;
encoding the demultiplexed symbols by the at least one encoder block;
transforming the encoded symbols by at least one inverse fast Fourier transform (IFFT) block; and
selecting antennas for transmitting the symbols based on the feedback information.
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Abstract
A method of achieving transmit diversity in a wireless communication system is disclosed. The method comprises encoding and modulating data stream based on feedback information, demultiplexing symbols to at least one encoder block, encoding the demultiplexed symbols by the at least one encoder block, transforming the encoded symbols by at least one inverse fast Fourier transform (IFFT) block, and selecting antennas for transmitting the symbols based on the feedback information.
134 Citations
45 Claims
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1. A method of achieving transmit diversity in a wireless communication system, the method comprising:
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encoding and modulating data stream based on feedback information; demultiplexing symbols to at least one encoder block; encoding the demultiplexed symbols by the at least one encoder block; transforming the encoded symbols by at least one inverse fast Fourier transform (IFFT) block; and selecting antennas for transmitting the symbols based on the feedback information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of achieving transmit diversity in a wireless communication system, the method comprising:
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demultiplexing data stream to at least one encoder block; performing channel coding and modulation to the demultiplexed data streams based on feedback information; encoding symbols by the at least one encoder block; transforming the encoded symbols by at least one inverse fast Fourier transform (IFFT) block; and selecting antennas for transmitting the symbols based on the feedback information. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of allocating data symbols to specific antenna and frequency in a multi input, multi output (MIMO) system, the method comprising:
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encoding at least one data symbol by at least one encoder block; transforming the encoded symbols by at least one inverse fast Fourier transform (IFFT) block; assigning by at least one antenna selector at least one antenna for transmitting the encoded symbols based on feedback information; and assigning by the at least one antenna selector at least one carrier on which the data symbol is transmitted based on the feedback information. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. An apparatus for achieving transmit diversity in a wireless communication system, the apparatus comprising:
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a channel encoder and a modulator configured to encode and modulate, respectively, data stream based on feedback information; a demultiplexer configured to demultiplex symbols to at least one encoder block; an encoder configured to encode the demultiplexed symbols by the at least one encoder block; an inverse fast Fourier transform (IFFT) block configured to transform the encoded symbols; and an antenna selector configured to select antennas for transmitting the IFFT transformed symbols based on the feedback information. - View Dependent Claims (44, 45)
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Specification