Compatibility Module for Open Market Handset RUIM Backward

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Solution Overview

Problem

Open market handsets (OMHs) face compatibility issues with older RUIM cards, limiting access to advanced features and services due to the lack of backward compatibility with legacy cards.

Innovation Solution

A method and apparatus that determine the type of identity module based on internal parameters, obtaining necessary provisioning parameters and credentials to enable backward compatibility, using a compatibility module to augment legacy cards with up-to-date information and profiles, allowing access to features like 3G packet data services.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If OMHs use newer RUIM cards with updated standards (C.S0023-D, C.S0065-B), then access to advanced features and services is improved, but compatibility with legacy RUIM cards (C.S0023-0, C.S0023-B) deteriorates

Engineering Contradiction:

Improveaccess to advanced features and servicesVSAvoidbackward compatibility

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a compatibility module that acts as an intermediary between the identity module and the network. This module detects the type of RUIM card inserted and provides appropriate translation or adaptation layers, enabling the device to communicate with both legacy and modern network infrastructures without requiring separate hardware for each standard.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The compatibility module dynamically changes operational parameters based on the detected RUIM card type. When a legacy card is detected, the module adjusts communication protocols, data formats, and service parameters to match the older standard, while maintaining the ability to access advanced features when modern cards are used.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If OMHs are designed to support multiple RUIM card standards, then backward compatibility is improved, but device complexity increases

Engineering Contradiction:

Improvebackward compatibilityVSAvoidmulti-standard support architecture

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The compatibility module is designed as a universal component that can handle multiple RUIM card standards through a single integrated architecture. Rather than implementing separate processing paths for each standard, the module provides a unified interface that adapts its behavior based on the inserted card type, reducing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically detects the RUIM card type and configures itself without user intervention. The compatibility module performs self-diagnosis and self-configuration when a card is inserted, selecting the appropriate protocol stack and service parameters automatically, thereby simplifying the user experience despite the underlying complexity.

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP2572487B1Apparatus and methods for locating, tracking and/or recovering a wireless communication device

Publication Date: 2020.03.04 QUALCOMM INC

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AI summary

A method and apparatus for enabling backward compatibility in open market handsets (OMH) is provided. The method may include determining a type of an identity module based on one or more internal parameters of the identity module, and obtaining one or more credentials based at least in part on the determined the type identity module.