A beam search and track wireless communication system and beam search and track method

Abstract

The invention discloses a wireless communication system for beam search and tracking, which comprises an array composed of active antenna units and corresponding transmitting and receiving units. The receiving channel of the transmitting and receiving unit down-converts the radio frequency signal to the baseband signal, first performs analog spatial filtering, and then passes through the parallel analog-to-digital converter to simultaneously form the main beam baseband signal output and the adjacent beam baseband signal output. The search and track method dynamically tracks the movement of the beam, and tracks and locks the output of the baseband signal with the largest amplitude to the output of the baseband signal of the main beam. The transmitting array transmits radio frequency signals using a beam that is consistent with but opposite to the receiving main beam.

Description

technical field [0001] The invention relates to the application of microwave phased arrays, such as wireless communication and satellite communication technology fields, and specifically solves the fast search and tracking of beams. Background technique [0002] In 5G wireless communication, the communication from the base station / micro base station BS to the user terminal equipment UE utilizes beamforming to improve the effectiveness of communication. Obviously, when the base station / micro base station BS and the user terminal equipment UE have more antenna units, the beam beam can be narrower, the antenna efficiency is higher, and the effectiveness of communication is higher, so it is closer to the ideal point-to-point way of communication. Narrow beam wireless communication has high confidentiality, that is, the external leakage is small, and it also causes less interference to other devices. On the other hand, narrow beams have better spatial filtering capabilities and...

AI Technical Summary

Problems solved by technology

For ground equipment with high-speed vibration or high-speed movement, the problem of fast beam search and tracking is also a challenge that is difficult to solve

[0006] Technologies such as MIMO and massive MIMO proposed in recent years, when the number of transmitting and receiving units is large, put forward very high requirements for computing hardware, resulting in large power consumption, and the control method is too complicated, and there is no Provides a satisfactory fast beam search and beam tracking solution for high-speed mobile UEs

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