MCX

Mission Critical Push to Talk, Mission Critical Voice, and Mission Critical Data

Overview

MCX is a collective term for 3 services: Mission Critical Push to Talk, Mission Critical Voice, and Mission Critical Data). These services provide communication when the network is down, or are very high priority for emergency or other critical circumstances where timely and reliable communication is required. Some typical users might be law enforcement or emergency response teams

Messages

MCPTT

On/Off Network Operation

Private, Group, Broadcast, Chat Group Calls

Emergency Communications

Upgrade/Downgrade

Automatic/Manual Commencement

Floor Control

UE Authentication/Authorization

Key/Identity/Configuration/Group Management

Location Information

MBMS

MCVideo

On/Off Network Operation

Private, Group, Broadcast, Chat Group Calls

Automatic/Manual Commencement

Emergency Communications

Upgrade/Downgrade

MCData

On/Off Network Operation

Short Data Service using Control and Data Plane

Group Standalone and Standalone SDS

File Distribution using HTTP and Data Plane

SDS Transport to Client and Group

Retransmission of SDS Message

Standards

3GPP 36.579-x

3GPP 24.48x