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US 8,553,794 B2Granted
Full-rate, full-diversity space-time block code technique for multiple transmissions using simple linear decoding complexity
AssigneeIntel Corporation
InventorsJiacheng Wang, Hujun Yin, Yang-seok Choi, Liang Jiang
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Abstract
An embodiment of the present invention provides a space-time block code (STBC) transmission method for 4 transmit antennas, comprising adding two 2×2 orthogonal pre-coding before a two Alamouti transmission for a 4 transmit antennas scheme.
Claims12
A space-time block code (STBC) transmission method for 4 transmit antennas, comprising:
- performing a first precoding by applying a first 2×2 orthogonal pre-coding matrix to a first pair of transmit symbols, S0 and S1;
- performing a second precoding by applying a second 2×2 orthogonal pre-coding matrix to a second pair of transmit symbols S2 and S3, wherein said first and second precoding generates two pairs of precoded output symbols, (C0, C1) and (C2, C3);
- and
- interleaving said two pairs of precoded output symbols to form cross-wise pairs of said precoded output symbols (C0, C2) and (C1, C3), wherein the interleaving generates a STBC transmission matrix for a two Alamouti transmission for a 4 transmit antennas scheme that enables simple, linear decoding.
1 more element
An apparatus, comprising:
- a transceiver using a space-time block code (STBC) transmission method for 4 transmit antennas that includes:
- performing a first precoding by applying a first 2×2 orthogonal pre-coding matrix to a first pair of transmit symbols S0 and S1;
- performing a second precoding by applying a second 2×2 orthogonal pre-coding matrix to a second pair of transmit symbols S2 and S2, wherein said first and second precoding generates two pairs of precoded output symbols, (C0, C1) and (C2, C3);
- and
- interleaving said two pairs of precoded output symbols to form cross-wise pairs of said precoded output symbols (C0, C2) and (C1, C3), wherein the interleaving generates a STBC transmission matrix for a two Alamouti transmission for a 4 transmit antennas scheme that enables simple, linear decoding.
2 more elements
A non-transitory machine-accessible medium that provides instructions, which when accessed, cause a machine to perform operations comprising:
- using a space-time block code (STBC) transmission method for 4 transmit antennas, including:
- performing a first precoding by applying a first 2×2 orthogonal pre-coding matrix to a first pair of transmit symbols S0 and S1;
- performing a second precoding by applying a second 2×2 orthogonal pre-coding matrix to a second pair of transmit symbols S2 and S3, wherein said first and second precoding generates two pairs of precoded output symbols, (C0, C1) and (C2, C3);
- and
- interleaving said two pairs of precoded output symbols to form cross-wise pairs of said precoded output symbols (C0, C2) and (C1, C3), wherein the interleaving generates a STBC transmission matrix for a two Alamouti transmission for a 4 transmit antennas scheme that enables simple, linear decoding.
2 more elements
Dependencies are inferred from the claim text.