1 Scope

23.5543GPPApplication architecture for MSGin5G ServiceRelease 18Stage 2TS

The present document specifies the functional architecture, procedures, information flows and APIs for MSGin5G Service. MSGin5G Service provides messaging communication capability in 5GS especially for Massive Internet of Things (MIoT).

MSGin5G Service includes the following message communication models:

– Point-to-Point message;

– Application-to-Point message/ Point-to-Application message;

– Group message;

– Broadcast message.

The corresponding service requirements are defined in 3GPP TS 22.262 [2].