SMS-SC Trigger Recall Mechanism for MTC Network Resource Management
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently replacing or recalling Machine Type Communication (MTC) device triggers and small data, leading to unnecessary network resource consumption due to excessive or failed trigger messages.
Innovation Solution
A method and apparatus that allow the Short Message Service-Service Center (SMS-SC) and Machine Type Communication-InterWorking Function (MTC-IWF) to receive messages with old and new trigger or small data reference numbers, enabling the deletion of old triggers/small data and storage of new ones, with quota management to prevent overload and ensure successful delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If trigger messages are continuously submitted without replacement or recall mechanism, then trigger delivery coverage is maintained, but network resource consumption increases due to redundant messages
Solution Approach 1:
The patent implements a recall mechanism that allows the network to delete old trigger messages and recover network resources. When a trigger message needs to be replaced or updated, the system can recall the old message from the network and device, deleting it from storage and releasing associated resources, thereby preventing redundant network resource consumption while maintaining delivery reliability through the replacement mechanism.
Solution Approach 2:
The patent introduces dynamic replacement capability where trigger messages can be dynamically updated. Instead of static persistent messages, the system allows old trigger messages to be replaced with new ones that may have updated parameters or corrected information, enabling the system to adapt to changing conditions while managing network resources efficiently.
2Ease of operation
If old trigger messages are not deleted, then message delivery is simplified, but network storage and processing resources are wasted
Solution Approach 1:
The patent implements a recall mechanism that allows the network to delete old trigger messages and recover network resources. When a trigger message needs to be replaced or updated, the system can recall the old message from the network and device, deleting it from storage and releasing associated resources, thereby preventing redundant network resource consumption while maintaining delivery reliability through the replacement mechanism.
3Manufacturing precision
If trigger replacement is implemented without quota management, then data accuracy is improved, but system overload may occur due to excessive replacement requests
Solution Approach 1:
The patent implements quota management as a feedback control mechanism for trigger replacement operations. The system tracks the number of replacement requests and compares them against predefined quotas or rate limits. When the quota is approached or exceeded, the system provides feedback by rejecting excess replacement requests or implementing rate limiting, thereby preventing system overload while still allowing accurate data updates within acceptable parameters.
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AI summary
According to one embodiment of the present invention, a method for exchanging/collecting a device trigger by a short message service-service center (SMS-SC) in a wireless communication system comprises the steps of: receiving a first message including an old trigger reference number from a machine type communications-interworking function (MTC-IWF); and deleting a trigger message corresponding to the old trigger reference number, wherein when the first message further includes a new trigger reference number, the SMS-SC detects the trigger message and stores a new trigger message corresponding to the new trigger reference number.