Method, device and system for controlling beam forming

Abstract

The invention relates to the technology of communication, in particular to a method, device and system for controlling beam forming. The method, device and system for controlling the beam forming are used for achieving flexible control over the beam forming. According to the system, expansion phase-shifting control devices are additionally arranged between all sets of power amplifiers and antenna array elements, further phase-shifting control over all paths of radio-frequency signals (namely, data to be transmitted) is added, and the accuracy of the phase control is improved by adopting a phase expansion method. Therefore, an expansion phase-shifting control framework is established, the defect that simulative beam forming is low in phase accuracy is overcome, fine granular and more accurate phase control can be further achieved on output signals of a certain path passing through a coarse granularity phase shifter and a power amplifier by combining the antenna array elements, and thus the control over the radio-frequency signals and the control over the beam forming can be achieved at high accuracy.

Description

technical field [0001] The present invention relates to communication technology, in particular to a control method, device and system for beamforming. Background technique [0002] With the rapid development of communication technology, the application of wireless mobile broadband will become more and more extensive. Portable mobile devices will use very high frequency bands for data communication, such as centimeter wave, millimeter wave and so on. Due to the carrier frequency and the influence of the environment, the loss of signal propagation is very high. In order to solve this problem, the general approach is to use beamforming technology in portable mobile devices for path loss compensation to ensure link quality; for example, using Multiple antennas form an array and use beamforming to increase gain to ensure link quality. [0003] Under the existing technology, digitally controlled phase shifters are usually used for high frequency band signals, refer to figure 1 ...

AI Technical Summary

Problems solved by technology

Theoretically speaking, the optimal beamforming effect can be achieved by using digital beamforming. For details, see figure 2 , phase information can be added to the data to be sent 1, 2...n, but due to the addition of multiple digital-to-analog conversion devices, its cost and power consumption are much higher than analog beamforming

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