SIM Configuration SMS Routing Based on Device Availability
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Solution Overview
Problem
Existing systems face challenges in efficiently managing the activation and configuration of subscriber identification modules (SIMs) due to issues with over-the-air (OTA) network devices lacking information about end device attributes and availability, leading to dropped profiles and incorrect SMS formatting, especially when the end device is not connected or the intermediary gateway is unavailable.
Innovation Solution
A network subscription activation and configuration service that queries intermediary network devices via APIs to acquire subscription attribute and availability information, enabling optimal SMS routing and delivery of configuration information to SIMs by selecting the most suitable path based on the acquired data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If OTA network devices attempt to deliver configuration information without verifying end device availability, then delivery speed may be improved, but profile loss and delivery reliability deteriorate
Solution Approach 1:
The system performs preliminary actions by querying end device availability and subscription attributes before attempting configuration delivery. The network device checks whether the end device is available and connected to the network prior to sending profile information, preventing wasted transmission attempts and profile loss while maintaining efficient delivery when devices are ready.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring end device availability status and using this information to dynamically adjust delivery decisions. The network device receives availability information from the end device or network elements and uses this feedback to determine optimal delivery timing, ensuring reliable profile transmission without unnecessary retries.
2Measurement precision
If the system queries intermediary network devices for subscription information, then delivery path accuracy is improved, but system complexity and query overhead increase
Solution Approach 1:
The system uses intermediary network devices as mediators to obtain subscription information and availability status. Rather than directly querying end devices, the network device communicates through intermediary elements that already possess or can easily obtain the required subscription attributes, simplifying the query process while maintaining high delivery path selection accuracy.
3Manufacturing precision
If the system stores and processes subscription attribute information, then SMS routing accuracy is improved, but information management complexity increases
Solution Approach 1:
The system performs preliminary acquisition and storage of subscription attribute information before SMS delivery is needed. By obtaining and caching subscription attributes in advance, the system ensures accurate SMS formatting and routing when delivery time arrives, without requiring complex real-time processing or information management during the actual delivery operation.
Data Source
AI summary
A method, a device, and a non-transitory storage medium are described in which a network subscription activation and configuration service is provided. The service may include a network device receiving subscription information including at least one of a short messaging service (SMS) packet data unit (PDU) format supported by an end device or an SMS delivery preference of the end device The network device also receiving availability information indicating that the end device is active on a network; selecting, based on the subscription information and the availability information, a network path from among network paths that enables delivery of a binary short messaging service (SMS) message; and transmitting, via the network path, the binary SMS message to the end device.