MSGin5G provides a data delivery messaging service in 5GS especially for enabling IoT device communications. It has been specified starting with Rel-17 in
TS 23.554. SEALDD is proposed as a generic data delivery enabler layer for all the verticals utilizing SEAL. It is beneficial to deploy one unified data delivery system suitable for all kinds of terminals to reduce the complexity of vertical applications.
MSGin5G functionalities described in
TS 23.554 are integrated in SEALDD enabler layer. As shown in
Figure B.2-1, MSGin5G client functionality is integrated in SEALDD client, and MSGin5G server functionality is integrated in SEALDD server. SEALDD server and SEALDD client can use MSGin5G functionalities to send SEALDD traffic in MSGin5G message format.