Method and device for HARQ in MIMO space multiplexing system
A technology of spatial multiplexing and spatial diversity, applied in the field of HARQ in MIMO spatial multiplexing system, can solve the problems of high transmission success, inability to transmit correctly, and poor data stream channel quality, so as to improve retransmission gain and improve retransmission performance. , the effect of reducing the average number of retransmissions
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[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0023] figure 1 It is a flowchart of the HARQ method in the MIMO spatial multiplexing system according to the present invention.
[0024] Such as figure 1 As shown, the method includes the following steps:
[0025] S102: After sending multiple independent data streams, select one or more data streams to be retransmitted according to the information fed back by the user equipment; and
[0026] S104: Perform independent coding and modulation on the selected one or more data streams that need to be retransmitted, and send them in a space diversity manner.
[0027] According to the method of the present invention, after the spatial diversity is adopted for transmission, the me...
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