SIM Bank Switching for Wireless Carrier Reliability

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Solution Overview

Problem

Wireless communication devices face disruptions in communication services when remote SIMs become unavailable due to disruptions in logical or wireless carrier connections, leading to instability in SIM bank communications.

Innovation Solution

A method is introduced to select and manage subscriber identity modules (SIMs) by establishing starter wireless carrier connections using a starter SIM, then switching to alternative local or remote SIMs from a SIM bank to maintain communication services, ensuring continuity through multiple connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single remote SIM is used to establish wireless carrier connections, then device complexity is reduced, but reliability deteriorates when the SIM bank connection is disrupted

Engineering Contradiction:

Improvecommunication service reliabilityVSAvoidSIM management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system pre-establishes multiple wireless carrier connections using different SIMs (both local and remote) before any connection disruption occurs. When the primary remote SIM connection is disrupted, alternative connections are already in place and can immediately take over, ensuring service continuity without requiring complex real-time switching logic

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically changes the operational state of different SIMs based on connection status. When remote SIM connection is disrupted, the system transitions from using remote SIMs to using local SIMs, effectively changing the SIM type parameter to maintain service reliability

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If multiple SIMs are managed in a SIM bank, then adaptability improves for different locations and data quotas, but reliability worsens when logical or wireless carrier connections are disrupted

Engineering Contradiction:

ImproveSIM selection flexibilityVSAvoidSIM bank communication reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

Local SIMs act as intermediary elements that provide a stable baseline connection. When remote SIM connections fail, the system can switch to local SIMs which are not dependent on the disrupted SIM bank logical connection, thus mediating between the need for SIM bank adaptability and the need for connection reliability

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system segments SIM management into two independent groups: local SIMs that provide stable baseline connectivity and remote SIMs that provide adaptive overflow capacity. This segmentation allows each group to serve its specific purpose without the reliability issues affecting the other

Inventive Principle:

Principle #1Segmentation

3Reliability

If seamless switching between SIMs is implemented, then service continuity is maintained, but device complexity increases

Engineering Contradiction:

Improveservice continuityVSAvoidconnection management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The wireless communication device autonomously monitors connection status and automatically switches between SIMs without requiring external intervention or complex manual configuration. The device self-manages the switching logic based on simple connection status detection, reducing overall system complexity while maintaining service continuity

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11696117B2Method and system for providing communication services using a plurality of remote subscriber identity modules

Publication Date: 2023.07.04 PISMO LABS TECH

AI summary

A method and a wireless communication device for providing communication service to devices connected to the wireless communication device. By establishing a starter wireless carrier connection using a starter SIM from a plurality of local SIMs, the wireless communication device establishes one or more logical data connections with one or more SIM banks. Remote-SIMs are selected from the one or more SIM banks and used to establish further wireless carrier connections to allow communication service to be provided to the devices over wireless carrier connections.