Mobile Satellite Receiver Warning for Authorization Expiration
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Solution Overview
Problem
In mobile satellite receiving devices, the power cycles can cause reauthorization signals for conditional access to be missed, leading to a lack of warning for users when conditional access authorization is about to expire, disrupting satellite signal access.
Innovation Solution
A method and system that communicate conditional access authorization and expiration signals to a mobile satellite receiver, enabling the generation of a warning display when the expiration time is near, and allowing reauthorization through a business center to maintain satellite signal access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the mobile receiving device is powered down periodically, then energy consumption is reduced and portability is improved, but reauthorization signals may be missed and authorization expiration cannot be monitored
Solution Approach 1:
The system performs preliminary action by sending a warning signal to the mobile device before the authorization expiration occurs. This allows the user to react and request reauthorization before the authorization actually expires, ensuring continuous access despite the device being powered down periodically.
Solution Approach 2:
The system introduces an intermediary warning mechanism that acts as a mediator between the authorization management system and the mobile device. Instead of requiring constant connection, the warning signal serves as an intermediary notification that prompts the user to reauthorize before expiration, bridging the gap caused by periodic power downs.
2Reliability
If the authorization expiration time is monitored continuously, then user access reliability is improved, but system complexity and processing requirements increase
Solution Approach 1:
The system extracts the monitoring function from continuous operation and instead sends discrete warning signals at predetermined intervals before expiration. This reduces the complexity of continuous monitoring while maintaining reliability by notifying users in advance of upcoming expiration.
Solution Approach 2:
Instead of continuous monitoring, the system uses periodic action by sending warning signals at specific intervals before authorization expiration. This periodic notification approach reduces processing requirements and system complexity while ensuring users are alerted in time to maintain their authorization.
Data Source
AI summary
A system and method for providing conditional access authorizations in a satellite-receiving system includes generating a conditional access authorization signal and an expiration signal at a head-end 20, receiving the conditional access authorization signal at a fixed satellite receiver 54 or at a mobile satellite receiver 28. When the mobile satellite receiver operates in a predetermined time window before the expiration time, which is determined from the expiration signal, a warning 434 on a screen display 432 is generated.