7.2 Short Message forwarding multiple subscriptions

23.1423GPPInterface and signalling flowRelease 17TSValue-added Services for SMS (VAS4SMS)

Short Message Forwarding Multiple Subscriptions is applicable for the terminating user. In this case, the VAS AS checks that the terminating user has activated the Short Message Forwarding Multiple Subscriptions service and shall send the original short message to multiple receivers based on the subscription information. The procedure of Short Message Forwarding Multiple Subscriptions described in the following figure 7.2-1.

Figure 7.2-1 Short Message forwarding to multiple subscriptions procedure

1.-3. The short message is transferred from the originating user to terminating sides’ SMS Node B. After checking out that the terminating user has subscribed VAS, the SMS Node B interacts with the VAS AS to interrogate whether the VAS of the terminating user is active by sending an inquiring message including the message content received in step 1. In that case the SMS Node shall save the original short message.

4. The VAS AS performs the short message forwarding to multiple subscriptions service and generates new short messages based on the original short message for each subscription.

5-6. The SMS Node B receives a short message to MS-1 and sends the Submit short message response to the VAS AS B.

7-8. The SMS Node B receives a short message to MS-n and sends the Submit short message response to the VAS AS B.

9-10. The SMS node B delivers the short message to MS-1 and relay the delivery report received from MS-1 to the VAS AS. These steps can happen at any time after step 6.

11-12. The SMS node B delivers the short message to MS-n and relay the delivery report received from MS-n to the VAS AS. These steps can happen at any time after step 6. There is no sequence requirement of sending short message for SMS Node, i.e. the SMS Node can send the short message in parallel.

13. The VAS AS generates a general delivery report based on all the delivery reports it receives and sends it to SMS Node B.

14. The SMS Node B notifies the originating side of the delivery status.