Signal processing method and large-scale array antenna system

Abstract

The invention relates to the technical field of communication, and particularly to a signal processing method and a large-scale array antenna system. The signal processing method and the large-scale array antenna system are used for reducing data postback bandwidth. On the one hand, the digital processing operation of signals is transferred from a baseband processing unit part to a large-scale array antenna system in the uplink direction, and the operation for carrying out service beam forming on digital signals is transferred from a baseband processing unit to the large-scale array antenna system in the downlink direction, so that the load of the baseband processing unit is greatly reduced; and on the other hand, the digital signals after being combined are then sent to the baseband processing unit by the large-scale array antenna system in the uplink direction, so that the data volume post-backed to the baseband processing unit is reduced, the requirement of the data returning bandwidth is accordingly reduced, and the availability of the system is improved. Therefore, the embodiment of the invention, compared with the prior technical scheme, can reduce the data returning bandwidth and the load of the baseband processing unit.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a signal processing method and a large-scale array antenna system. Background technique [0002] Outdoor wireless coverage will still be the focus of 4G / 5G commercial network construction in the future. Good wireless coverage can not only improve user satisfaction, form a competitive advantage, establish a good brand image, but also reduce network load and reduce network load. expansion pressure. Therefore, ensuring good outdoor wireless coverage of the network is an important factor that determines the success or failure of network construction. The performance of large-scale active array antennas and their actual application will become an important symbol of the success or failure of network construction. [0003] Large-scale array antenna technology provides an important guarantee for the improvement of system spectrum efficiency, user experience, and transmission re...

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Problems solved by technology

[0004] Since the large-scale array antenna system can increase the system capacity, it will be widely used, but the surge in the number of antennas will lead to a sharp increase in the amount of data returned by the antenna system to the baseband processing unit, resulting in the need for greater data return bandwidth. Therefore , under the premise of a large-scale array antenna system, how to reduce the data return bandwidth is an urgent problem to be solved at present

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