Hybrid Conditional Access Transmission with Acknowledgment
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Solution Overview
Problem
Existing systems for transmitting conditional access information in broadcast and communication systems rely heavily on one-way or two-way methodologies, which are inefficient and lack confirmation of receipt, leading to potential unauthorized access and network delays.
Innovation Solution
Implementing a hybrid approach that combines one-way and two-way communication paths in integrated devices or linked devices, where conditional access information is periodically updated with time-limited authorizations, using a tethered smartphone with a satellite radio receiver, and acknowledgments are sent via two-way paths to confirm receipt and processing, reducing the need for deactivation requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one-way broadcast methodology is used to transmit conditional access information, then system simplicity is maintained, but receipt confirmation is lost leading to potential unauthorized access
Solution Approach 1:
The patent combines one-way broadcast and two-way communication methodologies into a hybrid system. The broadcast receiver receives conditional access information via one-way broadcast, while the two-way transceiver sends acknowledgments to confirm receipt. This merging allows the system to maintain broadcast simplicity while adding reliability through selective two-way communication.
Solution Approach 2:
The two-way transceiver acts as an intermediary between the broadcast receiver and the network. It receives conditional access information from the broadcast receiver and transmits acknowledgment messages back to the network, mediating the communication to ensure receipt confirmation without disrupting the broadcast flow.
2Reliability
If two-way communication methodology is used to transmit conditional access information, then receipt confirmation is achieved, but network delays increase
Solution Approach 1:
The system uses periodic conditional access information transmission via broadcast, with acknowledgments sent only when needed. This periodic approach allows the system to maintain reliable confirmation while minimizing two-way communication overhead and associated network delays.
Solution Approach 2:
The system applies two-way communication partially rather than continuously. Acknowledgments are sent selectively based on whether conditional access information was received and processed, avoiding unnecessary two-way communication cycles and reducing network delays.
3Reliability
If temporary authorization with periodic updates is implemented, then security is enhanced, but communication frequency increases
Solution Approach 1:
The system implements dynamic authorization with time-limited conditional access information that requires periodic updates. This dynamic approach enhances security by ensuring temporary authorization while allowing the system to adapt communication frequency based on security requirements and operational conditions.
Data Source
AI summary
Various multiple methods of data transport, and combinations thereof, may be used to initialize or update conditional access information on various devices. In an integrated device having both a broadcast receiver, such as an SDARS receiver, and a two-way communications transceiver, such as an LTE, 3G, 4G or 5G modem, or the like, conditional access information for the broadcast receiver may be sent to the transceiver, and then passed to the broadcast receiver, or vice versa. Additionally, for example, the broadcast receiver may be sent, over the broadcast communications channel, a “wake-up” message for the two-way transceiver, which message may then be passed to the two-way transceiver, so as to make it ready to receive conditional access information over the two-way communications channel, or vice versa. Moreover, because of the presence of a two-way communications path, various acknowledgements of conditional access status updates received and processed by the broadcast receiver may be sent—thus realizing a significant improvement over the current practice of sending multiple periodic messages over the broadcast channel, to insure (but never have confirmation of) receipt.