Based on TM7 single-stream and TM8 dua1-stream transmission mode,multiple antenna enhancement technology can be introduced in TD-LTE system,including uplink MU-MIMO and downlink MU-MIMO. In MU-MIMO algorithm,two terminals with space division can be paired to share the same downlink resource blocks for uplink or downlink transmission. Due to the multiplexing of time-frequency resource,the valid transmission resource can be increased remarkably,thus the gain on dua1-terminal throughput and the cell overall throughput performance can be obtained. Detailed analysis on field test of uplink and downlink MU-MIMO was given,based on the algorithm implement of TD-LTE network equipment vendors.
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3GPP TS 36.211. Evolved Universal Terrestrial Radio Access (E-UTRA);Physical Channels and Modulation , 2008
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