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Wireless & Mobility · Intermediate

Real-Time Location System (RTLS)

A system that tracks the location of devices or tags in real time using Wi-Fi, BLE, UWB, or other signals.

Definition

Wi-Fi location uses RSSI trilateration, fingerprinting, time difference of arrival, FTM round-trip time, or angle of arrival. BLE and UWB tags provide higher accuracy for assets. Location-grade designs need APs placed around the perimeter and denser AP spacing.

Example

A hospital tracks infusion pumps with BLE tags.

Exam tip

Location-grade designs require more APs and perimeter placement than coverage-only designs.

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