Multiple-input multiple-output (MIMO) transmission method and apparatus
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United States of America Patent
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Nov 1, 2016
Grant Date -
Feb 19, 2015
app pub date -
Oct 28, 2014
filing date -
Apr 28, 2012
priority date (Note) -
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Abstract
Embodiments of the present invention disclose an uplink MIMO transmission method, including: sending, by a UE, first data to a base station (NodeB) in a first process in an HARQ_RTT, and receiving an acknowledgement character related to the first data and returned by the NodeB; and determining, by the UE according to the acknowledgement character and a rank value to be used for next transmission, data transmission of the first process in a next HARQ_RTT. The present invention further provides a corresponding user equipment and base station. Implementing the method and apparatus provided by the present invention can enable a UE to correctly perform HARQ transmission using MIMO, thereby effectively ensuring performance of MIMO.
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