CSI MEASUREMENT AND FEEDBACK METHOD, AND DEVICE
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United States of America Patent
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Oct 10, 2017
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Apr 10, 2015
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Embodiments of the present invention relate to the field of communications technologies, and disclose a CSI measurement and feedback method and a device, so as to resolve a prior-art problem that flexibility is poor when the UE measures a measurement pilot and provides a feedback. In a specific solution, a first network device sends a first signal to a second network device. The first signal is used for the second network device to determine a first measurement pilot according to the first signal, and send the first measurement pilot to the first network device. The first network device receives the first measurement pilot sent by the second network device, and measures the first measurement pilot to obtain first CSI. The first CSI includes at least one of a CQI, a PMI, an RI, or port selection information.
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