Cellular Router SIM Profile Caching for Latency Reduction

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Solution Overview

Problem

Current systems for cellular routers accessing SIM profiles remotely through the Internet face significant latency and packet loss issues, leading to unreliable connectivity, and managing hundreds or thousands of SIM profiles is resource-intensive for administrators.

Innovation Solution

A method and system that involves receiving information requests from wireless communication modules, determining if the response is stored, and either retrieving it locally or forwarding it to a massive SIM apparatus, with the processing unit controlling IO pins and generating alerts, and establishing data communication by selecting and managing SIM profiles to maintain reliable connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If SIM profiles are accessed remotely through the Internet, then device complexity is reduced and ease of operation is improved, but latency and packet loss increase significantly impacting reliability

Engineering Contradiction:
Improveease of SIM profile accessVSAvoidconnectivity reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements a caching mechanism that pre-loads and stores SIM profile data locally in the cellular router before it is needed for communication. This preliminary action allows the router to access SIM profiles from local storage rather than remotely requesting them over the Internet during critical communication moments, thereby eliminating latency and packet loss issues while maintaining the simplified remote management architecture.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If hundreds or thousands of SIM profiles are maintained remotely, then adaptability and versatility are improved, but time and resource consumption for administrators increases

Engineering Contradiction:
ImproveSIM profile management capabilityVSAvoidadministrative time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements a local caching system that creates and maintains copies of SIM profile data in the cellular router. Instead of administrators manually managing each SIM profile across multiple devices, the system automatically replicates and caches profile data locally, enabling rapid deployment and management of hundreds or thousands of profiles without proportional increases in administrative time or resources.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS20240365105A1Methods and systems of using a plurality of remote subscriber identification module profiles
Publication Date: 2024.10.31 PISMO LABS TECH
  • US20240365105A1 patent drawing
  • US20240365105A1 patent drawing
  • US20240365105A1 patent drawing

AI summary

The present invention discloses methods and systems for providing UICC/eUICC related response information to information requests at a cellular router. The method includes receiving an information request from a wireless communication module, and determining whether a response to the information request is cached. When the response information is not cached, forwarding the information request to a massive SIM apparatus (MSA). MSA will then respond to the information request. A response based on the MSA's response will then be sent to the wireless communication module for the information request. When the response information is cached, retrieve the response information and send it to the wireless communication module.