Primary Receiver Authorization for Multi-Device SDAR Subscriptions
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Solution Overview
Problem
Current satellite-based digital audio radio (SDAR) service providers face challenges in managing multiple device subscriptions, as existing systems lack efficient methods to authorize and track secondary devices, leading to potential abuse and increased costs for consumers.
Innovation Solution
Implementing a system where multiple receivers can be authorized under a single subscription, with a primary receiver designating and periodically verifying the status of secondary receivers based on proximity, using wireless communication protocols to ensure authorized access and prevent abuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices are authorized under a single subscription, then customer appeal and subscription value are improved, but the system becomes susceptible to abuse where devices are distributed to others
Solution Approach 1:
The system implements periodic feedback mechanisms where secondary receivers must communicate with the primary receiver at predetermined intervals to maintain authorized status. This feedback loop allows the system to detect and respond to abnormal usage patterns, such as devices being distributed to multiple locations, thereby preventing subscription abuse while maintaining multi-device capability.
Solution Approach 2:
The system performs preliminary actions by establishing geographic boundaries and authorization criteria before devices can be abused. The primary receiver pre-configures allowed geographic areas and communication intervals, creating preventive measures that stop abuse before it occurs rather than reacting to it afterward.
2Reliability
If secondary receivers must periodically communicate with the primary receiver to remain authorized, then abuse is reduced, but system complexity and communication requirements increase
Solution Approach 1:
The communication protocol serves multiple functions simultaneously: it maintains authorization status, verifies geographic location, ensures device integrity, and enables remote management. This multi-functionality reduces the need for separate specialized protocols, thereby managing system complexity while maintaining strong authorization control.
3Object-affected harmful factors
If a secondary receiver fails to communicate within a prescribed time period, then unauthorized state prevents abuse, but service interruption occurs for legitimate users
Solution Approach 1:
The system dynamically adjusts the prescribed communication time period based on device characteristics, usage patterns, and geographic context. For example, devices in stable locations may have longer intervals, while mobile devices may require more frequent communication. This dynamic approach prevents abuse while minimizing service interruptions for legitimate users.
Data Source
AI summary
Multiple receivers may be enabled to receive satellite-based digital audio radio (SDAR) services under a single subscription. For example, an SDAR service provider can enable multiple vehicles, a home-based digital radio, or a portable digital radio, singly or in any combination. Multiple receivers transmit information to each other. One receiver is designated as a primary receiver, and the other receivers are designated as secondary receivers. The SDAR service provider transmits a list of associated secondary receivers to the primary receiver. The primary receiver enables the associated secondary receivers to receive SDAR services by placing them in an authorized state. The secondary receivers must periodically communicate with the primary receiver to remain authorized. A secondary receiver that fails to communicate with the primary receiver within a prescribed time period is switched to an unauthorized state. In this unauthorized state, the secondary receiver no longer performs as an authorized receiver.