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Content for  TS 23.554  Word version:  18.2.0

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8.3.4  MSGin5G message delivery status report into the MSGin5G Serverp. 55

Figure 8.3.4-1 shows the procedure for an MSGin5G UE that initiates an MSGin5G message delivery status report.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.4-1: message delivery status report from MSGin5G UE
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Figure 8.3.4-2 shows the procedure for an Application Server that initiates an API request for MSGin5G message delivery status report specified in clause 9.1.1.4 to UE.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.4-2: message delivery status report from Application Server
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Figure 8.3.2-3 shows the procedure for a Legacy 3GPP Message Gateway or a Non-3GPP Message Gateway that sends an MSGin5G message delivery status report to the MSGin5G Server on behalf of a Legacy 3GPP UE or Non-3GPP UE.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.4-3: message delivery status report from Message Gateway (on behalf of Non-MSGin5G UE)
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Pre-conditions:
  1. The sender of an MSGin5G message has asked for a message delivery status report.
Procedures:
The following procedure applies to the above Figure 8.3.4-1, Figure 8.3.4-2 and Figure 8.3.4-3 with the exception that step 1 only applies to Figure 8.3.4-1.
Step 1.
The Application Client in the MSGin5G UE sends a request to the MSGin5G Client for invoking the MSGin5G Client to send an MSGin5G message delivery status report to a recipient.
Step 2.
As shown in Figure 8.3.4-1 or Figure 8.3.4-3, the MSGin5G Client or Message Gateway sends the MSGin5G message delivery status report to the MSGin5G Server and includes the IEs as listed in Table 8.3.4-1, or as shown in Figure 8.3.4-2, the Application Server sends an API request to the MSGin5G Server for sending an MSGin5G message, the API request includes the IEs as listed in Table 8.3.4-1.
Information element Status Description
Originating UE Service ID/AS Service IDMThe service identity of the sending MSGin5G Client, Legacy 3GPP UE, Non-3GPP UE or the sending Application Server.
Recipient UE Service ID/AS Service ID (NOTE)MThe service identity of the receiving MSGin5G Client, Legacy 3GPP UE, Non-3GPP UE or the receiving Application Server.
This is the sender of the message that this message delivery status report is for.
Message IDMUnique identifier of message delivery status report.
The message ID of the MSGin5G message that is being acknowledged is included in this IE.
Security CredentialsOSecurity information required by the MSGin5G Server.
This is a placeholder for SA3 security information.
Failure CauseOThe Failure Cause indicates the failure reason, if applicable.
Delivery StatusMThe delivery status description, including success or failure in delivery.
NOTE:
When the originator is an Application Server, (i.e. Originating AS Service ID is present), this IE shall be a UE Service ID.
Step 3.
The MSGin5G Server verifies that the sender is authorized to send the message delivery status report.
Step 4.
The MSGin5G Server may send a response to the originating entity if the message delivery status report is rejected and includes the IEs as listed in Table 8.3.2-3 in the response.
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8.3.5  MSGin5G message delivery status report from the MSGin5G Serverp. 57

Figure 8.3.5-1 shows the procedure for the MSGin5G Server that forwards an MSGin5G message delivery status report to an MSGin5G UE.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.5-1: message delivery status report towards an MSGin5G UE
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Figure 8.3.5-2 shows the procedure for the MSGin5G Server that forwards an MSGin5G message delivery status report to an Application Server.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.5-2: Message delivery status report towards an Application Server
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Figure 8.3.5-3 shows the procedure for the MSGin5G Server that forwards an MSGin5G message delivery status report to a Legacy 3GPP Message Gateway or a Non-3GPP Message Gateway.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.5-3: message delivery status report towards a Message Gateway
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The following procedure applies to the above Figure 8.3.5-1, Figure 8.3.5-2 and Figure 8.3.5-3 with the exception that step 2 only applies to Figure 8.3.5-1.
Step 1.
the MSGin5G Server sends the MSGin5G message delivery status report to the MSGin5G UE or Message Gateway and includes the IEs as listed in Table 8.3.5-1, or as shown in Figure 8.3.5-2 and Figure 8.3.5-3, the MSGin5G Server sends an API request to the Application Server for sending an MSGin5G message, the API request includes the IEs as listed in Table 8.3.5-1.
Information element Status Description
Originating UE Service ID/AS Service IDMThe service identity of the sending MSGin5G Client, Legacy 3GPP UE, Non-3GPP UE or the sending Application Server.
Recipient UE Service ID/AS Service ID (see NOTE)MThe service identity of the receiving MSGin5G Client, Legacy 3GPP UE, Non-3GPP UE or the receiving Application Server.
This is the sender of the message that this message delivery status report is for.
Message IDMUnique identifier of message delivery status report.
The message ID of the MSGin5G message that is being acknowledged is included in this IE.
Failure CauseOThe Failure Cause indicates the failure reason, if applicable.
Delivery StatusMThe delivery status description, including success or failure in delivery.
NOTE:
When the originator is an Application Server, (i.e. Originating AS Service ID is present), this IE shall be a UE Service ID.
Step 2.
The MSGin5G Client sends the MSGin5G message delivery status report to Application Client.
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8.3.6  MSGin5G Store and Forwardp. 59

Figure 8.3.6-1 shows the procedure for providing store and forward services for MSGin5G message requests.
This procedure applies when an MSGin5G inbound message is received at the MSGin5G Server and the recipient UE is not available; otherwise, the procedure detailed in clause 8.3.2 applies.
Pre-conditions:
  1. The MSGin5G Client or Application Server has registered to the MSGin5G Server.
  2. The MSGin5G server has determined that the recipient UE is not available.
Copy of original 3GPP image for 3GPP TS 23.554, Fig. 8.3.6-1: Store and forward procedure
Figure 8.3.6-1: Store and forward procedure
(⇒ copy of original 3GPP image)
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Step 1.
Inbound MSGin5G message handling, see steps 1-3 in clause 8.3.2. The value of the Store and forward flag IE (see Table 8.3.2-1) in the MSGin5G message indicates that store and forward services are requested by the sender.
Step 2.
The MSGin5G Server checks the registration information of the recipient UE. If the Store and forward option IE (see Table 8.2.1-3) indicates that the recipient UE opts out of store and forward services, the message is discarded and the procedure ends. If the Store and forward flag IE (see Table 8.3.2-1) in the received message indicates that store and forward services are not requested by the sender, the message is discarded and the procedure ends.
If store and forward processing is required, the MSGin5G Server uses the Application specific store and forward information IE (see Table 8.3.2-2) to determine storage and forwarding
Step 3.
Before the Message expiration time is expired, the MSGin5G Server may trigger the Recipient UE based on the MSGin5G device triggering procedure in clause 8.9.3.
Step 4.
The MSGin5G Server may send a message response as defined in Table 8.3.2-3 which includes store and forward status information in the Delivery Status IE, e.g., that the delivery had been deferred
Step 5.
The recipient UE becomes available.
Step 6.
When the recipient UE becomes available, the MSGin5G Server attempts delivery of the request using the procedure specified in clause 8.3.3.
If the UE does not become available prior to the expiration time, the MSGin5G Server attempts delivery of the request at the message expiration time and the stored message is discarded afterwards.
Step 7.
The MSGin5G Server may send a message response as defined in Table 8.3.2-3 which includes store and forward status information in the Delivery Status IE, e.g., that the message was discarded.
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