Traveling SIM Programming for Weak RF Connectivity

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Solution Overview

Problem

User devices face challenges in establishing and maintaining connections to wireless communication networks in areas with weak RF reception, leading to increased power consumption and potential inability to connect.

Innovation Solution

A method and system that utilize a traveling SIM (tSIM) to program a second SIM on a user device, enabling communication with a mobile core network through a baseband processing unit, which includes multiple profiles controlling communication settings based on geographic location and signal strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the user device attempts to establish or maintain a connection to the wireless communication network in areas with weak RF reception, then the user device may achieve connectivity, but the power consumption increases significantly

Engineering Contradiction:
ImproveconnectivityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent introduces a mobile core network as an intermediary between the user device and the macro core network. The mobile core network acts as a relay that receives communications from the user device and forwards them to the macro core network, enabling connectivity in areas where direct connection to the macro core network is unavailable or unreliable. This intermediary approach allows the user device to maintain connectivity without expending excessive power attempting direct long-range communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the user device attempts to establish or maintain a connection to the wireless communication network in areas with weak RF reception, then the user device may achieve connectivity, but the time spent attempting connection increases

Engineering Contradiction:
ImproveconnectivityVSAvoidconnection establishment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The mobile core network serves as an intermediary that reduces connection establishment time by providing a local access point for communications. Instead of continuously attempting direct connections to distant macro core networks in weak RF areas, the user device can quickly establish connections through the nearby mobile core network, which then handles the backhaul communication to the macro core network.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the user device uses a traditional SIM card for communication, then the device can connect to macro core networks, but the device cannot effectively communicate in areas with weak RF reception

Engineering Contradiction:
Improveconnectivity in weak RF areasVSAvoidcommunication infrastructure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a mobile core network as an intermediary communication infrastructure between the user device and the macro core network. This intermediary enables reliable communication in weak RF areas by providing a local network anchor point that the user device can connect to, which then relays communications to the macro core network through available backhaul connections.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The mobile core network is designed to perform multiple functions: it serves as a local access network for user devices, provides authentication and session management, enables data routing, and acts as a relay to the macro core network. This multi-functional approach allows a single infrastructure to address various communication challenges in mobile environments.

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

Data Source

PatentUS20250175783A1Traveling Subscriber Identity Module
Publication Date: 2025.05.29 T MOBILE INNOVATIONS LLC
  • US20250175783A1 patent drawing
  • US20250175783A1 patent drawing
  • US20250175783A1 patent drawing

AI summary

In some examples, a method of communication management includes receiving, at a user device programmed to communicate with a macro core network via a baseband processing unit of the user device according to a first subscriber identity module (SIM), a traveling SIM (tSIM), receiving, at the user device, an instruction to initiate the tSIM, responsive to the instruction, programming, on the user device, a second SIM based on the tSIM, the second SIM including multiple profiles programmed according to the programming, wherein the multiple profiles control communication of the user device via the baseband processing unit, and communicating with a mobile core network via the baseband processing unit according to the second SIM.