Wireless Device Temporary Identity Transfer for Roaming
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Solution Overview
Problem
Current wireless communication systems incur high costs and inconvenience when users need to access foreign networks for roaming, due to lack of trust between service providers and the need to physically change UICC cards, which can be expensive and inconvenient.
Innovation Solution
A method and apparatus that enable a wireless device to temporarily adopt local identity information for operation on a foreign operator network, allowing it to be recognized as a local subscriber, thereby reducing costs and eliminating the need for physical card changes by transferring local identity information wirelessly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless device uses roaming services on a foreign network, then the device can access foreign networks, but the cost of service becomes much higher
Solution Approach 1:
The patent creates a copy of the local SIM card's identity information (IMSI, authentication keys) and transfers it to the foreign wireless device. This allows the foreign device to masquerade as a local subscriber, accessing the network at local rates instead of expensive roaming charges. The identity information is copied from the local SIM and transmitted to the foreign device, enabling it to operate as if it were a local subscriber.
Solution Approach 2:
The patent introduces an intermediary system that acts as a bridge between the local network and foreign devices. This intermediary captures identity information from local SIM cards, processes it, and transfers it to foreign devices seeking access. The intermediary enables the foreign device to use local network resources without direct connection to the local SIM, effectively mediating the access relationship.
2Adaptability or versatility
If a user purchases an unlocked wireless device to use with different service providers, then the device can accept any UICC card, but the device cost becomes more expensive
Solution Approach 1:
Instead of requiring users to purchase expensive unlocked devices or physically exchange SIM cards, the patent copies the necessary identity information from local SIM cards and transmits it wirelessly to the foreign device. This eliminates the need for users to invest in specialized unlocked hardware, as any device can temporarily adopt local identity through the copying mechanism.
3Adaptability or versatility
If a user physically changes the UICC card to access a foreign network, then the device can use local identity information, but the process becomes inconvenient and complex
Solution Approach 1:
The patent replaces the mechanical process of physically removing and inserting SIM cards with a wireless electronic transmission of identity information. Instead of manually handling physical cards, opening devices, and removing batteries, the system uses wireless communication to transfer the necessary identity data, eliminating all the mechanical inconveniences associated with physical SIM card exchange.
Solution Approach 2:
The patent creates a digital copy of the SIM card's identity information and transmits it to the foreign device. This copied identity data allows the foreign device to function with local privileges without requiring the physical presence of the local SIM card, eliminating the need for card removal and insertion operations.
4Measurement precision
If data traffic is sent via a dedicated leased connection back to the home service provider for billing, then billing accuracy is ensured, but the connection speed is limited and costs are higher
Solution Approach 1:
The patent copies the local subscriber's identity information and uses it to establish a direct local connection. By making the foreign device appear as a local subscriber through identity copying, all data traffic routes locally through the domestic network infrastructure rather than being backhauled internationally, dramatically improving speed while maintaining billing accuracy through the identity tracking mechanism.
Data Source
AI summary
A method and apparatus for transferring identity information for temporary use by a wireless device, visiting a foreign operator network, is provided. The wireless device is identified as foreign to the operator network and presented with an opportunity to download a temporary identity which is recognized by the operator network as belonging to a local subscriber. The temporary identity, once installed on the wireless device, makes the wireless device appear as a local subscriber. Upon termination of use, the temporary identity is returned to a pool and usable for another wireless device.