Mobile Switching Center SMS-C Address Correction

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Solution Overview

Problem

In mobile communication systems, short messages cannot be delivered successfully if the SMS-C address is incorrectly configured in the mobile station, as existing methods fail to correct or bypass the incorrect address.

Innovation Solution

A method that corrects the SMS-C address using a stored address list in the mobile switching center (MSC) before forwarding the message, or after it has been rejected by the SMS-C, ensuring delivery with a preset default address.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the SMS-C address is configured in the mobile station, then the short message can be routed to the SMS service center, but if the address is incorrect the message delivery fails

Engineering Contradiction:
Improvemessage delivery success rateVSAvoidaddress configuration accuracy
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mobile switching center acts as an intermediary between the mobile station and the SMS service center. It receives the short message with the potentially incorrect SMS-C address, validates the address using a stored list of valid addresses, and either corrects the address or forwards the message using a default address, thereby mediating the communication failure caused by address configuration errors

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The mobile switching center performs preliminary address validation and correction before forwarding the short message to the SMS service center. By checking the SMS-C address against a pre-stored list of valid addresses and correcting it in advance, the system prevents delivery failures that would occur if the incorrect address reached the SMS service center

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the SMS-C address is corrected in the mobile switching center, then message delivery succeeds, but the system complexity increases

Engineering Contradiction:
Improvemessage delivery success rateVSAvoidaddress validation mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mobile switching center performs multiple functions: it acts as a standard message routing switch, maintains a list of valid SMS-C addresses, validates incoming message addresses, corrects incorrect addresses, and provides default routing. By consolidating these diverse functions into a single existing network element, the system achieves reliable message delivery without adding separate complex validation infrastructure

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2095651B1Method for delivering a short message in a mobile communications system
Publication Date: 2017.05.10 T MOBILE INTERNATSIONAL AG
  • EP2095651B1 patent drawingFigure 1~2
  • EP2095651B1 patent drawingFigure 3~4
  • EP2095651B1 patent drawingFigure 5

AI summary

The invention relates to a method for delivering a short message in a mobile communications system, in which the short message sent from a mobile station is received by an SMS-Service-Centre, SMS-C, and forwarded to a corresponding recipient, wherein the SMS-C is addressed by means of an SMS-C address in the mobile communications system. The invention is distinguished by the fact that an SMS-C address recognized as erroneous is corrected on the part of the mobile communications system, and the delivery of the short message is continued with the corrected SMS-C address.