SMS Loop Prevention via Dynamic Parameter Tracking
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Solution Overview
Problem
Message loops occur when user devices with message forwarding services send SMS messages back and forth indefinitely, leading to a poor user experience and wastage of network resources.
Innovation Solution
Incorporating a loop indicator parameter in SMS messages to prevent message loops by adding or modifying the parameter when forwarding messages, allowing the system to track and limit the number of message forwards, thereby avoiding infinite loops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If message forwarding service is enabled on multiple user devices, then message routing flexibility is improved, but message loop formation risk increases
Solution Approach 1:
The system performs preliminary actions by adding a loop indicator parameter to SMS messages before forwarding them. This parameter is set in advance to track the message forwarding path, enabling the system to detect and prevent message loops before they can cause infinite cycling between devices.
Solution Approach 2:
The system implements feedback by checking the loop indicator parameter on each forwarded message. When a message is received, the system reads the loop indicator, determines whether it indicates a loop condition, and takes appropriate action (forwarding or discarding). This feedback mechanism continuously monitors message flow to prevent loops while maintaining routing flexibility.
2Productivity
If message forwarding is allowed without restrictions, then message delivery capability is improved, but network resource consumption increases
Solution Approach 1:
The feedback principle is applied by continuously monitoring the loop indicator parameter in forwarded messages. This enables the system to identify and stop message loops, preventing unnecessary network resource consumption while maintaining unrestricted message forwarding capability for legitimate communications.
Solution Approach 2:
The system discards messages that are determined to be part of a loop based on the loop indicator parameter. This selective discarding prevents infinite message cycling and network resource waste, while allowing all non-loop messages to be delivered normally, thus maintaining high message delivery capability.
3Reliability
If loop detection mechanisms are implemented, then message loop prevention is improved, but message processing complexity increases
Solution Approach 1:
The system changes a parameter (the loop indicator) within the existing SMS message structure rather than introducing complex new detection mechanisms. By modifying and reading this parameter, the system achieves reliable loop prevention with minimal increase in processing complexity, as the logic involves simple parameter checking and comparison.
Data Source
AI summary
A device may be configured to receive a message from a user device; and determine whether the message includes a parameter. When the message does not include the loop indicator parameter, the device may add the loop indicator parameter to the message to generate a first modified message, and output the first modified message toward an intended recipient of the message. When the message includes the loop indicator parameter, the device may determine whether a value of the loop indicator parameter exceeds a threshold value. When the value of the loop indicator parameter does not exceed the threshold value, the device may discard the message. When the value of the loop indicator parameter exceeds the threshold value, the device may modify the value of the loop indicator parameter value to generate a second modified message, and output the second modified message toward the intended recipient of the message.