Combined design method for hybrid beam former and analog-to-digital converter

Abstract

The invention discloses a combined design method for a hybrid beam former and an analog-to-digital converter, and the method comprises the following steps: selecting the number of antennas connected with each radio frequency link according to a channel information state and a user service quality requirement, and designing an analog beam former; optimally configuring the resolution of each analog-to-digital converter, and designing a digital beam former. The invention aims to reduce the cost overhead of the system and obtain good balance between the optimization of energy consumption and the maintenance of reliability. In a millimeter wave and higher frequency band large-scale antenna array communication system, a resolution adaptive analog-to-digital converter and a dynamic non-uniform sub-connection hybrid beam forming technology are adopted, and the resolution of an antenna array of a base station and the resolution of the analog-to-digital converter are dynamically adjusted according to channel state information and user service quality requirements, so the energy consumption of an uplink communication system is reduced, and the spectrum efficiency of the system is improved.

Description

technical field [0001] The invention relates to a large-scale antenna hybrid beamforming technology with dynamic non-uniform sub-connections and an adaptive resolution analog-to-digital converter technology, in particular to a joint design method of a hybrid beamformer and an analog-to-digital converter. Background technique [0002] With the rapid development of wireless network technology and mobile terminal electronic equipment, more and more devices will be connected to the network in the future. A large number of sensory communication devices connected to the wireless network provide the basis for the development of the era of intelligent interconnection of all things. Many IoT application services such as smart medical care, autonomous driving and smart cities are also emerging. Faced with the increasing pressure of new network application services and data transmission, millimeter wave and its higher frequency band (>30GHz) ultra-wideband communication transmission...

AI Technical Summary

Problems solved by technology

[0004] In the existing beamforming technology, the all-digital beam technology requires each antenna unit to be equipped with a radio frequency link, which will result in higher hardware cost and complexity in the millimeter wave communication system with a large number of antenna units

Secondly, in the hybrid beamforming technology, the fixed sub-connection antenna array lacks the dynamic adjustment function for channel quality and user service quality

In addition, the transceivers of existing communication systems use high-resolution analog-to-digital converters (12-18 bit resolution), which will cause high hardware power consumption

In terms of resolution adaptive analog-to-digital converters and dynamic sub-connection hybrid beamforming technology, the current related research is not enough

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