Device and method of wireless network channel simulation based on external field measured data

Abstract

The invention provides a device and a method of wireless network channel simulation based on external field measured data. The method comprises collecting channel fading data of each base station and each user terminal of a network, and carrying out analysis on each channel fading data to form channel parameters needed in the channel simulation; receiving signals sent by corresponding base station antennas according to a simulated scene when the channel simulation is carried out on a scene, carrying out channelized processing on the received signals with the corresponding channel parameters of the scene, and outputting the processed signals from a corresponding output end. According to the technical scheme of the device and the method of the wireless network channel simulation based on the external field measured data, not only can the signals be processed on a base band, but also radio frequency data can be processed, and the channel scenarios used for simulation all root in real external environment, thus practical external environment can be simulated more really, and the purpose of achieving an external field test in a laboratory can be reached.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a simulation device and method for complicated external field wireless network channels. Background technique [0002] The electromagnetic wave propagation characteristics of wireless channels are related to the propagation environment (geographical features, buildings, electromagnetic interference, frequency bands, etc.). In general, we believe that wireless channels have two characteristics: large-scale fading and small-scale fading, among which large-scale fading describes The attenuation or path loss of the average received signal power caused by the mobile station moving over a large distance has two influencing factors: path loss and shadow fading. Path loss refers to the propagation loss of radio waves in space; shadow fading refers to the shadow area of ​​electromagnetic field that will be generated when radio waves are blocked by tall obstacles during propagation. W...

AI Technical Summary

Problems solved by technology

Among them, the soft simulation is based on the classic channel model in the industry, and simulates and approximates the wireless channel through mathematical modeling. The defect is that these channel models only model the classic application scenarios, and cannot truly reproduce the diversity and complexity of the channel. ;The hard simulation is based on the wireless channel simulator. The wireless channel simulator can generate channel parameters according to the channel model,

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