Application architecture for MSGin5G Service; Stage 2
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].
MSGin5G Service provides the following capabilities to enhance the message delivery for all message communication models:
- MSGin5G Store and Forward;
- Message communication based on Messaging Topic;
- Message Aggregation;
- Message Segmentation and Reassembly;
- Message Gateway to interwork with non MSGin5G messaging services;
- Usage of Network Capabilities including UE reachability status monitoring and MSGin5G device triggering.
The present specification also defines the usage and interactions of the MSGin5G Service with SEAL services and the utilizing of SEAL functionalities in MSGin5G service.