Short Message Retransmission Control via Error Cause Analysis
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Solution Overview
Problem
Current smartphone systems wastefully retransmit short messages upon receiving error messages like CP ERROR and EP ERROR, leading to resource wastage as partial retransmissions often fail.
Innovation Solution
A method and device that determine whether a short message can be successfully retransmitted based on the cause value of an error message received from the network, optimizing retransmissions by using a preset mapping relationship between cause values and the number of retransmissions, thereby avoiding unnecessary retransmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If short message retransmission is performed upon receiving error messages, then message delivery reliability is improved, but network resources are wasted due to unnecessary retransmissions
Solution Approach 1:
The patent changes the parameter of retransmission decision from a binary approach (always retransmit or never retransmit) to a multi-parameter approach that considers error cause values, message importance levels, and user preferences. This allows the system to adapt retransmission behavior to specific conditions, avoiding unnecessary retransmissions while ensuring delivery of critical messages.
Solution Approach 2:
The patent applies different retransmission strategies to different short messages based on their individual characteristics, particularly their importance levels and error cause values. Instead of a uniform retransmission policy, the system tailors retransmission behavior to each message's specific context, allowing critical messages to be retransmitted while non-critical messages are left unretransmitted to conserve resources.
2Reliability
If all error messages trigger retransmission, then message delivery completeness is improved, but system complexity increases due to handling various error scenarios
Solution Approach 1:
The patent segments the error message handling into distinct categories based on error cause values (e.g., temporary failures vs. permanent failures). By classifying errors into different types, the system can apply simplified retransmission rules to each category rather than handling all errors uniformly, reducing the complexity of error management while maintaining comprehensive message delivery.
3Productivity
If retransmission is performed for all failed messages, then message delivery rate is improved, but time consumption increases due to repeated transmission attempts
Solution Approach 1:
The patent introduces dynamic retransmission control where the retransmission decision and parameters (such as retry count and timing) are adjusted based on real-time conditions including error cause values, message importance, and user preferences. This dynamic approach allows the system to maximize message delivery rate while minimizing unnecessary time consumption on messages that are unlikely to be successfully retransmitted.
Data Source
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AI summary
The present disclosure provides a method and a device for retransmitting a short message, a device and a storage medium. The method includes: after transmitting a short message, determining whether the short message can be successfully retransmitted based on a cause value of an error message in response to receiving the error message transmitted back from a network side; and determining whether to retransmit the short message based on a result of determining whether the short message can be successfully retransmitted.