A 5g NR uplink energy measurement method

Abstract

The present invention provides a 5G NR uplink energy measurement method, including receiving the downlink wireless signal transmitted by the 5G NR mobile base station and the uplink wireless signal transmitted by the 5G target terminal; analyzing the downlink wireless signal to obtain the position of the NR downlink frame header and the 5G target terminal The uplink resource allocation information; based on the NR downlink frame header position and uplink resource allocation information, the uplink wireless signal is correlated in the frequency domain window to obtain the uplink energy of the 5G target terminal. Compared with the traditional field strength meter positioning method, the present invention uses the downlink wireless signal transmitted by the 5G NR mobile base station to analyze the PUSCH configuration information of the target terminal, and accurately calculates the uplink energy of the 5G target terminal. According to the uplink energy, the 5G target terminal Perform precise positioning.

Description

technical field [0001] The present invention relates to the field of mobile communications, and more specifically, to a method for measuring 5G NR uplink energy. Background technique [0002] With the popularization and promotion of 5G standard NR terminals, it is urgent to accurately detect the NR terminal signals of 5G target terminals in 5G private network mobile communication and disaster search, so that the position of trapped personnel can be accurately located, which is convenient Rescue the trapped people in time. [0003] The previous detection methods were applied in 2G, 3G, and 4G scenarios. Due to the changes in the frame structure of 5G NR and the way to obtain the specific identifier C_RNTI of the target terminal, the generation method of the 5G uplink PUSCH DMRS sequence, and the frequency domain, The time-domain mapping method is different from other standards, so the previous uplink energy detection methods of other standards cannot be applied in 5G scenari...

AI Technical Summary

Problems solved by technology

[0003] The previous detection methods were applied in 2G, 3G, and 4G scenarios. Due to the changes in the frame structure of 5G NR and the way to obtain the specific identifier C_RNTI of the target terminal, the generation method of the 5G uplink PUSCH DMRS sequence, and the frequency domain, The time-domain mapping method is different from other standards, so the previous uplink energy detection methods of other standards cannot be applied in 5G scenarios

[0004] The detection method of the field strength meter does not take into account the specific identifier C_RNTI of the 5G target terminal in the design. When multi-user interference or the target distance is far away, the NR target signal source has been submerged in the interference, and the field strength meter cannot distinguish the target terminal. ; and the 5G signal attenuates faster than other standards, and the field strength meter method may not be able to search for the position of the frame synchronization point of the weak signal, thus increasing the difficulty of accurately detecting the 5G NR signal source

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