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Unlicensed frequency band mode selection method of 5G NR base station

A technology for unlicensed frequency band and mode selection, applied in the field of wireless transmission

Active Publication Date: 2020-10-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of the overall SINR coverage performance of the NR network and the Wi-Fi network when the 5G NR network and the Wi-Fi network coexist in a dense networking scenario, and propose an unlicensed frequency band mode for the 5G NR base station Method of choosing

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  • Unlicensed frequency band mode selection method of 5G NR base station
  • Unlicensed frequency band mode selection method of 5G NR base station
  • Unlicensed frequency band mode selection method of 5G NR base station

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Embodiment 1

[0095] Scenarios considered by the present invention are as figure 1 As shown, in a circular area with a radius of 4000m, 1509 gNBs and 503 Wi-Fi APs are deployed. At this time, the total number of base stations in the 5G NR network is M=1509, where the index of the i-th base station gNB is i, i=1,2,...,1509. Each gNB serves 1 UE, that is, the number of user terminals UE served by each gNB is N i = 1. All base stations of the 5G NR network are connected to a central server (Central Server, CS). At this time λ W =10 -5 m -2 ,λ N =3×10 -5 m -2 . The center frequency f of the licensed frequency band of gNB L 2.4GHz, the center frequency of the frequency band used by Wi-Fi AP f U 5GHz. Every Wi-Fi AP is in communication state. In this scenario, the transmission power P of the Wi-Fi AP W = 23dBm, transmission power P of gNB N =23dBm, the threshold Γ for monitoring Wi-Fi devices when Wi-Fi is used for channel monitoring cs = -82dBm, the threshold Γ for monitoring NR d...

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Abstract

The invention provides an unauthorized frequency band mode selection method of a 5G NR base station, and belongs to the technical field of wireless transmission. According to the invention, user equipment (UE) accessed to a 5G NR network sends a measurement report to a base station gNB serving the user equipment (UE); and a central server (CS) calculates the overall average SINR coverage probability of the 5G NR network according to the UE measurement report collected by the gNB and notifies the gNB to complete the unauthorized frequency band mode selection at the probability p according to the size of the overall average SINR coverage probability. The method can provide better flexibility and better SINR coverage performance, is designed on the basis of a new technology of a next generation of mobile communication network, and can be more widely applied to a future 5G communication network; and compared with the condition that mode selection is not carried out, the method can effectively improve the SINR coverage performance of the whole network in the coexistence scene of the 5G NR network and the Wi-Fi network, and provides better communication service quality.

Description

technical field [0001] The invention provides a method for selecting an unlicensed frequency band mode of a 5G NR base station, which belongs to the technical field of wireless transmission. Background technique [0002] Due to the development of various communication networks such as Wi-Fi and 5G, heterogeneous network (Heterogeneous Network, HCN) has become a promising dense networking architecture, and has attracted extensive attention from academia and industry. Due to the increasingly scarce spectrum resources, in order to meet the communication needs of a large number of smart devices, the next-generation 5G mobile communication network (The fifth-generation New Radio, 5G NR) will use unlicensed frequency bands, that is, use other communication networks such as Wi-Fi The frequency band carries on the communication of this network. However, when using unlicensed frequency bands, since the communication system of 5G NR is not compatible with the communication systems of...

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Application Information

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IPC IPC(8): H04W16/18H04W24/02H04W24/10
CPCH04W16/18H04W24/02H04W24/10
Inventor 费泽松蒋逸凡郭婧
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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