Fingerprint-based positioning technology is a method that uses the signal strength or phase
difference of wireless signals to locate objects. There are two types of fingerprint-based positioning
technology: virtual fingerprint-based positioning and real fingerprint-based positioning. In virtual
fingerprint-based positioning, the positioning engine generates a virtual fingerprint library through
calculations based on the AP deployment and environment information. In real fingerprint-based
positioning, the fingerprint map is obtained through onsite information collection.
Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/fingerprintbased-positioning-technology
