MMS Application Identifier for Email Transport
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Solution Overview
Problem
Current multimedia messaging systems often require conversion of email messages into MMS format for transmission, which is undesirable and can lead to misclassification and inappropriate handling of email messages within the MMS system.
Innovation Solution
The method involves using an application identifier to classify email messages within the MMS system, allowing them to be transmitted and processed as such, ensuring they are forwarded to a separate email client for appropriate handling, utilizing the MMS system as a transport mechanism and employing specific interfaces for communication between MMS relay/servers and subscriber terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If email messages are converted into MMS format for transmission, then they can be transmitted through the MMS system, but message integrity deteriorates and inappropriate handling occurs
Solution Approach 1:
The patent segments the message handling process by introducing an application identifier field that divides messages into distinct categories (email vs. generic MMS). This segmentation allows the system to route different message types through appropriate handling paths, preventing email messages from being incorrectly processed as generic MMS while maintaining transmission capability through the MMS infrastructure.
Solution Approach 2:
The application identifier acts as an intermediary element that mediates between the email message and the MMS system processing. By inserting this identifier field into the MMS message structure, the system can recognize and preserve the original message type, ensuring that email messages are transmitted through MMS without being converted or mishandled, thus maintaining both transmission capability and message integrity.
2Productivity
If conversion to MMS format is performed, then transmission through MMS system is enabled, but device complexity increases due to conversion requirements
Solution Approach 1:
The patent extracts the message type identification function from the message content itself and places it in a separate application identifier field. This extraction eliminates the need for complex conversion processes, as the MMS system can directly recognize email messages through the identifier field and handle them appropriately without format conversion, thereby reducing processing complexity while maintaining transmission capability.
Solution Approach 2:
The MMS message structure is enhanced with a universal application identifier field that can identify multiple message types (email, generic MMS, and potentially other types). This multi-functional approach allows a single message structure to handle different message types without requiring separate conversion processes, reducing device complexity while enabling broad transmission capability across the MMS system.
3Measurement precision
If application identifier is used to classify messages, then message handling accuracy improves, but information overhead increases
Solution Approach 1:
The patent applies local quality by inserting the application identifier only in specific locations within the MMS message structure where it is most effective for classification. Rather than duplicating identification information throughout the message, the identifier is placed strategically in the message header or control fields, providing high classification accuracy with minimal additional data volume.
Solution Approach 2:
The application identifier uses a compact parameter representation (such as a short code or enum value) to convey message type information. By changing the representation format to a space-efficient parameter, the system achieves high classification accuracy while minimizing the increase in message data volume, as the identifier requires only a small number of bytes compared to alternative representation methods.
Data Source
Figure 1~2
AI summary
The invention relates to a method for transmitting messages from a user application of a subscriber to a user application of another subscriber with the aid of the Multimedia Messaging Service MMS, the message being in the format of an external application and is identified as such by an application identifier that is transmitted along with the message. According to the invention, the multimedia message service is used by the external application as a transport system for transmitting the message. The message is identified by a network element of the Multimedia Messaging Service using the application identifier and is transmitted in an unmodified state via the Multimedia Messaging Service and forwarded to the external application. The invention also relates to a subscriber terminal and a communication system for carrying out said method.