eSIM Profile Download Redirection via Device Parameters
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Solution Overview
Problem
The standard methods for downloading eSIM profiles to wireless communication devices are either restrictive or expensive, and they do not account for device type or business requirements, leading to inefficient profile delivery and increased resource usage.
Innovation Solution
A method and system that utilize device parameters such as the embedded UICC identifier (EID), type allocation code (TAC), and International Mobile Equipment Identifier (IMEI) number to interact with a subscription manager-data preparation plus (SM-DP+) server, allowing for redirection to alternate SM-DP+ servers if the initial server is unavailable, thereby improving profile download efficiency and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard methods are used to download eSIM profiles, then profile delivery can be achieved, but the process is restrictive and expensive with increased resource usage
Solution Approach 1:
The patent changes the parameter of server selection by using device parameters (EID, TAC, IMEI) to determine the appropriate SM-DP+ server domain. This allows dynamic routing to the most suitable server based on device characteristics, improving profile delivery efficiency while optimizing resource usage by avoiding unnecessary retries and repetitions.
Solution Approach 2:
The patent introduces an intermediary mechanism where the SM-DP+ server acts as a mediator between the wireless communication device and the profile inventory. The server receives provisioning requests, determines availability based on device parameters, and either delivers the profile or redirects to an alternate server, thereby streamlining the overall process and reducing resource consumption.
2Adaptability or versatility
If standard methods are used to download eSIM profiles, then profile delivery can be achieved, but the process does not account for device type or business requirements
Solution Approach 1:
The patent applies local quality by tailoring the profile delivery process to specific device types and business requirements. By analyzing device parameters such as EID, TAC, and IMEI, the system determines the appropriate SM-DP+ server domain for each device type, enabling customized and optimized profile delivery without increasing overall system complexity.
3Reliability
If repetitive attempts are made to download eSIM profiles, then profile delivery may eventually succeed, but resource usage increases and efficiency decreases
Solution Approach 1:
The patent implements preliminary action by determining SM-DP+ server availability and selecting the appropriate server domain before the profile download process begins. This upfront determination prevents unnecessary repetitive attempts, ensuring reliable profile delivery while maximizing productivity by avoiding wasted resources on unavailable servers.
Data Source
AI summary
A method of providing an electronic subscriber identity module (eSIM) profile to a wireless communication device. The method comprises receiving, by a subscription manager-data preparation plus (SM-DP+) server, an eSIM profile provisioning request, wherein the eSIM profile provisioning request comprises device parameters including an embedded UICC identifier (EID) number, a type allocation code (TAC), and an International Mobile Equipment Identifier (IMEI) number, determining, by the SM-DP+ server, whether the eSIM profile associated with the device parameters is available for download to the wireless communication device, identifying, by the SM-DP+ server, a domain of the wireless communication device associated with the device parameters in response to determining that the eSIM profile is unavailable, determining, by the SM-DP+ server, a first domain SM-DP+ server based on the identified domain and transmitting, by the SM-DP+ server, a first network address of the first domain SM-DP+ server to the wireless communication device.