SIM OTA IMSI Integration for Network Resource Optimization

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Solution Overview

Problem

Current SIM OTA platforms face significant resource consumption and inefficiency when managing millions or billions of user devices without MSISDNs, leading to excessive requests for identifying IMSIs, which strain network and processor resources.

Innovation Solution

Incorporating IMSI into SMPP messages sent by the SIM OTA platform to the LSGW, allowing it to determine the connected network device and deliver SMS messages directly, thereby reducing the need for additional requests to SDM systems and conserving resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If SIM OTA platforms use traditional methods to manage user devices without MSISDNs, then they can maintain compatibility with existing systems, but they consume excessive network and processor resources due to multiple requests for identifying IMSIs

Engineering Contradiction:

Improvecompatibility with existing systemsVSAvoidnetwork and processor resources

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts the IMSI identification function from the complex multi-step verification process and integrates it directly into the SMPP message delivery path. By including IMSI in the SMPP message and using it directly for routing decisions, the system eliminates the need for separate IMSI lookup requests to SDM systems, thereby reducing resource consumption while maintaining reliable device management

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs preliminary action by pre-including the IMSI information in the SMPP message at the source (SIM OTA platform) before message delivery. This allows the LSGW to immediately determine the connected network device using the pre-provided IMSI, eliminating the need for subsequent lookup requests and reducing overall system resource consumption

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If SIM OTA platforms send multiple requests to identify IMSIs for user devices, then they can ensure accurate device identification, but they generate excessive traffic that strains network resources

Engineering Contradiction:

Improvedevice identification accuracyVSAvoidnetwork traffic volume

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent merges the IMSI identification function with the SMPP message delivery process. By combining the device identification information (IMSI) directly into the message stream and using it for routing decisions, the system achieves accurate device identification without generating separate identification requests, thereby reducing overall network traffic volume

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent makes the SMPP message multi-functional by incorporating it as both a delivery vehicle and an identification source. The same message that carries SMS content also contains the IMSI information needed for routing, eliminating the need for separate identification queries and reducing network traffic

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If SIM OTA platforms use public subscriber identity information (MSISDN) for SMS delivery, then they can maintain standard communication protocols, but they fail to efficiently identify devices that connect using private subscriber identity information (IMSI)

Engineering Contradiction:

Improveprotocol compatibilityVSAvoiddevice identification efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent inverts the traditional approach by using private subscriber identity information (IMSI) instead of public subscriber identity information (MSISDN) for SMS delivery and routing. This inversion allows the system to efficiently identify devices that connect using IMSI, while the LSGW maintains the ability to translate between IMSI and MSISDN as needed, preserving protocol compatibility

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS10356569B2System and method for efficient short message service delivery using private subscriber identity information

Publication Date: 2019.07.16 VERIZON PATENT & LICENSING INC

AI summary

A device may receive, from a subscriber identity module (SIM) over-the-air (OTA) (SIM OTA) device, a short message peer-to-peer (SMPP) message. The SMPP message including an international mobile subscriber identity (IMSI) associated with a user device. The SMPP message being associated with modifying a universal integrated circuit card (UICC) of the user device. The device may determine, using the IMSI associated with the user device, a network device to which the user device is connected. The device may provide, to the network device, a short message service (SMS) message associated with modifying the UICC of the user device to permit the UICC of the user device to be modified.