3GPP 23.369 v20.0.0 — the document's own text
5.2.2.1 Overview
Taught in 3. How a tag is actually read, from the request to the answer (Ambient IoT — a tag with no battery, quick start).
Four types of Command service operations are supported: Read, Write, Disable and Application-Specific.
An AF uses the Command service Read operation to retrieve information from AIoT Device(s), and the AIOTF uses the commands described in clause 5.2.2.2 towards the AIoT Device for the operation.
An AF uses the Command service Write operation to write information to AIoT Device(s), and the AIOTF uses the AIoT NAS Commands described in clause 5.2.2.2 towards the AIoT Device for the operation.
An AF uses the Command service Disable operation to permanently disable the capability of AIoT Device(s) to transmit RF signals, and the AIOTF uses the AIoT NAS Commands described in clause 5.2.2.3 towards the AIoT Device for the operation.
An AF uses the Command service Application-Specific operation to transfer application specific downlink data to an AIoT Device(s), and the AIOTF uses the AIoT NAS Commands described in clause 5.2.2.4 towards the AIoT Device for the operation.
If the AIoT Device receives a NAS Command Request that the AIoT Device does not support or has not implemented, the AIoT Device shall return an AIOT STATUS message with an appropriate cause code as defined in TS 24.369 [13]. Otherwise, the AIoT Device performs the Command service operation according to the received NAS Command Request.