Communication method, base station, and user equipment

Abstract

The embodiment of the invention provides a communication method, a base station, and user equipment. The method comprises the steps: forming m wave beams through employing a mode of antenna weighting, wherein the m is a positive integer which is greater than 1; determining the uplink receiving power of each of the m wave beams according to an uplink detection signal of the user equipment (UE); selecting n wave beams from the m wave beams according to an uplink receiving power of each of the m wave beams, wherein n is a positive integer and is less than m; and sending an pilot signal to the UE according to the n wave beams. In the embodiment of the invention, the uplink receiving power of each of the m wave beams is determined according to the uplink detection signal of the user equipment (UE), and n wave beams are selected from the m wave beams to send pilot signal to the UE according to the uplink receiving power of each of the m wave beams, not sending the pilot signal to the UE through all wave beams, thereby improving the flexibility of pilot signal configuration for the UE, and reducing the complexity of the measurement of the pilot signal through the UE.

Description

technical field [0001] The present invention relates to the field of communication, and in particular, to a communication method, base station and user equipment. Background technique [0002] Theoretical analysis shows that as the number of antennas increases, the channel capacity will also increase. At the same time, increasing the number of antennas at the transmitting end can also obtain better beamforming effects, so the wireless transmission technology that uses more antennas to send and receive, that is, multi-input Multiple-Input and Multiple-Output (MIMO) technology has always been one of the mainstream technologies in the field of mobile communication research. [0003] A reference signal, that is, a pilot signal, is a known signal provided by a base station to a user equipment (User Equipment, UE), and used by the UE for channel estimation or channel measurement. The basic idea of ​​the current pilot signal design is that each port corresponds to a pilot signal. ...

AI Technical Summary

Problems solved by technology

[0004] In MIMO technology, as the number of antennas increases, the number of ports will also increase. If the existing pilot signal design scheme is used, the base station needs to send pilot signals to the UE through all ports, resulting in the base station configuring for the UE. The flexibility of the pilot signal is poor, and the UE also needs to measure the pilot signal for all ports, which increases the complexity of the measurement

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