Methods, systems, and computer redable media for optimized short message service (SMS)-based Internet of Things (IoT) device triggering

A system for optimized short message service (SMS)-based Internet of things (IoT) device triggering, the system comprising:

• a machine type communications interworking function (MTC-IWF) device including at least one processor;
• and
• an IoT device trigger message generator comprising a component of the MTC-IWF implemented by the at least one processor for receiving a request for sending a trigger message to an IoT device, generating an SMS message for triggering the IoT device, identifying a serving node for the IoT device, transmitting the SMS message directly from the MTC-IWF to the serving node for the IoT device using an S6a/d or mobile application part (MAP) interface and without using any short message service centers, and receiving, from the serving node and in response to successful delivery of the SMS message to the IoT device, confirmation of delivery of the SMS message, wherein the MTC-IWF is configured to, in response to failure of delivery of the SMS message:
• buffer the SMS message;
• subscribe to receive notification of availability of the IoT device;
• and
• receive an indication of availability of the IoT device, and, in response, re-attempt delivery of the SMS message.

A non-transitory computer readable medium having stored thereon executable instructions that when executed by a processor of a computer control the computer to perform steps comprising:

• receiving, at a machine type communications interworking function (MTC-IWF), a request for sending a trigger message to an IoT device;
• generating, at the MTC-IWF, an SMS message for triggering the IoT device;
• identifying a serving node for the IoT device;
• transmitting, by the MTC-IWF, the SMS message directly from the MTC-IWF to the serving node for the IoT device using an S6a/d or mobile application part (MAP) interface and without contacting or passing through any short message service centers;
• receiving, by the MTC-IWF, from the serving node, and in response to successful delivery of the SMS message to the IoT device, confirmation of delivery of the SMS message;
• and
• in response to failure of delivery of the SMS message:
• buffering, by the MTC-IWF, the SMS message;
• subscribing, by the MTC-IWF, to receive notification of availability of the IoT device;
• and
• receiving, by the MTC-IWF, an indication of availability of the IoT device, and, in response, re-attempting, by the MTC-IWF, delivery of the SMS message.