A real-time spectral symbol filter interference detection method and system based on 5gnr network synchronization

Abstract

The present invention provides a real-time spectrum symbol filter interference detection method and system based on 5GNR network synchronization, through the combined use of an antenna unit, a radio frequency unit, a synchronization module, a central processing unit, a GPS Beidou module, a display controller and a symbol filter, Receive the input of the 5G NR network analog signal, and quickly synchronize the clock to the system frame start time of the 5G NR base station signal, and then output the real-time spectrum data of the 5G NR network; after the data received by GPS and Beidou navigation are synchronized, the 5G base station signal is switched Divide the spectrum into multiple symbol units and use the corresponding symbol filter for detection; use the signal component symbol filter processing algorithm to obtain the 5G NR base station signal component and interference noise component respectively for different symbol unit spectrum, and display the 5G NR network through the display controller As for the detection result of the interference component, the present invention realizes the separation, extraction and detection of the 5G NR base station signal component and the interference signal component, and achieves the purpose of accurately measuring the interference signal.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and system for real-time spectrum symbol filtering interference detection based on 5GNR network synchronization. Background technique [0002] The 5g network refers to the fifth-generation network in the development of mobile communication networks. Compared with the previous four-generation mobile networks, the 5g network shows more enhanced functions in the actual application process, and theoretically its transmission speed is It can reach tens of gigabytes per second, which is hundreds of times faster than 4G mobile networks. For the 5G network, it shows more obvious advantages and more powerful functions in the actual application process. The 5G network supports both TDD and FDD duplex mode, but the base station density of the 5G network is higher, and the network bandwidth also increases. As large as 100MHz, TDD has better spectrum flexibilit...

AI Technical Summary

Problems solved by technology

For the 5G network, it shows more obvious advantages and more powerful functions in the actual application process. The 5G network supports both TDD and FDD duplex methods, but the base station density of the 5G network is higher, and the network bandwidth is also increased. As large as 100MHz, compared with the duplex mode of FDD, the spectrum flexibility of TDD is better, making TDD technology the main choice of 5G network technology. With the advancement of 5G network, interference problems are inevitable. TDD duplex 5G NR The network is facing technical difficulties in troubleshooting network interference

[0003] Most of the existing 5G NR interference troubleshooting technical solutions use the traditional spectrum detection method. Since the sampling rate cannot reach the minimum symbol time unit (4.46us-71.35us) of 5G, the interference signal component is submerged in the 100MHz 5G base station signal. Such a technology It is impossible to distinguish the interference signal clearly, and it is impossible to effectively find the direction and locate the interference signal

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