name: PWS
full_form: Public Warning System
context: Figure 8.5.2.2-1: PWS Cancel procedure: successful operation The gNB-CU initiates the procedure by sending a PWS CANCEL REQUEST message to the gNB-DU. The gNB-DU shall acknowledge the PWS CANCEL REQUEST message by sending the PWS CANCEL RESPONSE message. If the Cancel-All Warning Messages Indicator IE is present in the PWS CANCEL REQUEST message, then the gNB-DU shall stop broadcasting and discard all warning messages for the area as indicated in the Cell Broadcast To Be Cancelled List IE or in all the cells of the gNB-DU if the Cell Broadcast To Be Cancelled List IE is not included. The gNB-DU shall acknowledge the PWS CANCEL REQUEST message by sending the PWS CANCEL RESPONSE message, and shall, if there is area to report where an ongoing broadcast was stopped successfully, include the Cell Broadcast Cancelled List IE with the Number of Broadcasts IE set to 0. If the Cell Broadcast To Be Cancelled List IE is not included in the PWS CANCEL REQUEST message, the gNB-DU shall stop
description: Public Warning System (PWS) is a telecommunications service that enables the dissemination of critical information to the public during emergency situations. It involves the broadcasting of warning messages to mobile devices in a specific area, and its operation is managed by network functions such as the gNB-CU and gNB-DU.
explanation: The context describes PWS as a system for broadcasting warning messages to the public, which indicates it is a service provided by the telecommunications network. The involvement of network functions like gNB-CU and gNB-DU in managing the PWS operation further supports this classification.
section_title: 8.5.2.2Successful Operation
biotag_Context: O,O,B-Service,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Service,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,O,O,O,B-Message,O,O,O,O,B-Service,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,I-Service,O,O,O,O,B-Message,O,O,O,O,O,O,O,B-Network Function,O,O,B-Service,I-Service,O,O,O,O,B-Message,O,O,O,O,B-Network Function,O,O,O,B-Service,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,I-Service,O,O,B-Message,O,O,O,O,O,B-Message,O,O,O,O,O,B-Service,I-Service,O,O,O,O,B-Message,O,O,O,O,O,B-Service,O,O,O,O,B-Network Function,O,O
biotag_Description: B-Service,I-Service,I-Service,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O