SMS delivery to prevent duplicate SMS messages on LTE

摘要

Sending short message service (SMS) messages and receiving a response report based at least in part on the sent SMS message, even if a communicative connection with the mobile communications network had been severed, so that duplication of the SMS message is avoided is disclosed. In this case, a communicative connection may be re-established and used to receive an acknowledgment from the mobile communications network and subsequently send another acknowledgement to the mobile communications network. The UE may also be configured to send an information element to the one or more elements of the mobile communications network to indicate that a communicative connection with the network is to remain established so that acknowledgements may be reconciled between the UE and the network. Additionally, the mobile communications network may be configured to transmit the SMS message only after receiving the acknowledgement from the UE, to avoid sending duplicate SMS messages.

主权项

1. A mobile switch center server, comprising:
at least one memory that stores computer-executable instructions; at least one processor that accesses the at least one memory, wherein the at least one processor is configured to: receive, via a signaling connection, a SMS message from a first smartphone, the SMS message directed to a second smartphone, the SMS message including an information element indicating that the signaling connection is to be maintained for a predetermined period of time; determine that the SMS message has been received in an error-free state, wherein determining that the SMS message has been received in an error-free state comprises checking the SMS message for a plurality of errors including one or more of: (i) exceeding a memory capacity of the at least one memory, (ii) invalid short message transfer reference value, (iii) semantically incorrect message, (iv) invalid mandatory information, (v) message type non-existent or not implemented, (vi) message not compatible with short message protocol state, (vii) information element non-existent or not implemented, or (viii) unspecified protocol error; send a response report to the first smartphone indicating that the SMS message has been received in the error-free state; receive an acknowledgement message from the first smartphone; and send the SMS message to the second smartphone after receiving the acknowledgement message.