SIM Card Individualization via Unique Identifier Segmentation
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Solution Overview
Problem
Existing card-shaped mobile radio subscriber identification modules (SIM cards) with identical content cannot be distinguished on the network side, leading to uncertainties about service availability and updates, which dissuades users from employing twin or tri-SIM sets.
Innovation Solution
Assigning a unique identifier to each SIM card on the mobile terminal device, allowing for distinguishable identification and management on the network side, enabling the tracking of updates and service configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SIM cards with identical content are assigned to a mobile subscriber, then the subscriber can access the mobile network with multiple cards, but the mobile network side cannot distinguish between the individual SIM cards
Solution Approach 1:
The patent segments the identification function by introducing a unique identifier for each SIM card that is separate from the cloned service content. This allows the network to distinguish between individual SIM cards while maintaining identical service functionality across multiple cards.
Solution Approach 2:
The patent introduces an intermediary identifier element that mediates between the cloned SIM content and the network's need for distinction. This identifier acts as a mediator that enables network recognition of individual SIM cards without altering the core cloned service content.
2Ease of manufacture
If SIM cards with identical content are used, then cloning is achieved, but updates and service profiles cannot be tracked for individual cards
Solution Approach 1:
The patent separates the static cloned content from the dynamic identification element. This segmentation allows efficient cloning of service content while enabling reliable tracking of updates through the unique identifier associated with each SIM card.
Solution Approach 2:
The patent applies local quality by making each SIM card have identical global service content but a unique local identifier. This allows the network to track and update individual cards specifically based on their local identifier while maintaining uniform service content.
3Device complexity
If no unique identifier is assigned to each SIM card, then the structure remains simple, but the network cannot determine service availability and functionality for each card
Solution Approach 1:
The patent extracts the identification function from the service content itself. By separating the unique identifier from the cloned service content, the system maintains simple SIM card structure while enabling the network to determine service availability and functionality for each card.
Solution Approach 2:
The unique identifier serves as an intermediary that connects the simple SIM card structure to the network's service management system. This intermediary enables the network to track and manage service configurations for each individual SIM card without complicating the card's basic structure.
Data Source
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AI summary
The method involves assigning subscriber identity module (SIM) cards with identical contents to a mobile radio subscriber in a mobile radio network. The cards are provided with identifiers, which enable different identification of the cards in a side of the mobile radio network. The identifiers at a side of a storage position of the cards are taken as content of the storage position and are managed in a database (DB). The identifiers of the cards are transmitted to the network by a message of a message service of the network. Independent claims are also included for the following: (1) a computing device such as provisioning server and over the air (OTA) server , for a mobile radio network (2) a mobile terminal for operating in a mobile radio network (3) a subscriber identification module (SIM) card for use in mobile terminal that is operated in a mobile radio network.