PDE (Position Determining Entity)

From NENA Knowledge Base

The PDE (Position Determining Entity) determines the precise position or geographic location of a wireless terminal when the MS starts a call or while the MS is engaged in a call. Each PDE supports one or more position determining technologies. Multiple PDEs may service the coverage area of an MPC and multiple PDEs may serve the same coverage area of an MPC utilizing different positioning determining technologies.

Related Terms:

LDT (Location Determination Technology)

A system which computes the x and y coordinates of a wireless 9‑1‑1 caller, and z, where applicable.

Relevant NENA Documents


NENA-STA-015, NENA Standard Data Formats for 9‑1‑1 Data Exchange & GIS Mapping