Scheduled EMM Broadcast Window for Mobile TV Bandwidth
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Solution Overview
Problem
Current Entitlement Management Message (EMM) delivery in mobile television networks is bandwidth-intensive and causes significant device battery drain, as devices need to continuously monitor broadcast channels for EMMs, even when users are watching content, leading to inefficient resource usage and potential missed content due to incorrect timing.
Innovation Solution
Implementing a method where subscribers are grouped and provided with specific EMM broadcast windows, allowing devices to tune into the broadcast only during designated times, reducing unnecessary monitoring and battery consumption, and optimizing bandwidth usage by scheduling EMM delivery during known user activity periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If EMM broadcast cycle time is increased to reduce bandwidth consumption, then bandwidth efficiency is improved, but the probability of users missing EMM delivery decreases only if users are actively watching during the extended cycle time
Solution Approach 1:
The system performs preliminary actions by notifying users in advance of the EMM broadcast window timing and actively monitoring user device status before the broadcast occurs. This allows the system to predict whether users will be active during the broadcast period and take preparatory measures to ensure reliable delivery while optimizing bandwidth usage through extended cycle times.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring user device status and activity patterns, then using this information to dynamically adjust EMM delivery strategies. The feedback loop ensures that even with extended broadcast cycle times, the system can identify and notify active users to maintain high delivery reliability while reducing overall bandwidth consumption.
2Reliability
If devices continuously monitor broadcast channels for EMMs, then EMM delivery reliability is improved, but device battery consumption increases significantly
Solution Approach 1:
The system transitions from continuous monitoring to periodic action by having devices monitor broadcast channels only during specific EMM broadcast windows rather than continuously. This periodic monitoring approach maintains EMM reception reliability by ensuring devices check for EMMs at appropriate intervals while dramatically reducing battery consumption by keeping receivers inactive during non-broadcast periods.
Solution Approach 2:
The system performs preliminary actions by notifying users in advance of upcoming EMM broadcast windows and providing timing information. This allows user devices to prepare and activate their receivers only when needed, rather than maintaining continuous monitoring, thereby ensuring reliable EMM reception while minimizing battery consumption through targeted, time-limited activation.
3Loss of energy
If EMM broadcast cycle time is extended to save bandwidth, then bandwidth efficiency is improved, but users may miss EMM delivery if they are not watching during the broadcast period
Solution Approach 1:
The system performs preliminary actions by notifying users in advance of EMM broadcast window timing and monitoring user device status before the broadcast occurs. This allows the system to predict user availability and take preparatory measures to ensure EMM delivery completion while maintaining extended broadcast cycle times for bandwidth efficiency.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring user device status and using this information to dynamically adjust delivery strategies. This feedback ensures that even with extended broadcast cycles, the system can identify active users and notify them appropriately, preventing EMM delivery failures while maintaining bandwidth efficiency through longer cycle times.
Data Source
AI summary
Systems and methods include broadcasting an entitlement management message (EMM) in a communication system using a scheduled delivery window. The systems and methods including receiving a EMM broadcast window from a distribution system, listening for the EMM during the EMM broadcast window, and receiving the EMM from the distribution system during the EMM broadcast window.