Adaptive Modulation Scheduling for Satellite MPEG Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional DOCSIS-based satellite communication systems inefficiently utilize downstream bandwidth due to the requirement that all MPEG frames must be transmitted using the same transmission parameters, limiting the ability to optimize and allocate bandwidth effectively.
Innovation Solution
A system and method that dynamically configures downstream MPEG frame parameters by organizing data streams with predetermined parameters within SMTS data queues, allowing for variable encoding and modulation techniques to optimize bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all MPEG frames are transmitted using the same transmission parameters, then system simplicity is maintained, but downstream bandwidth utilization efficiency deteriorates
Solution Approach 1:
The patent segments MPEG frames into different categories based on their transmission requirements, organizing them into separate queues (e.g., queue 402a for first set of parameters, queue 402b for second set of parameters). This allows different transmission parameters to be applied to different frame segments, improving bandwidth utilization while maintaining manageable system complexity through structured organization.
Solution Approach 2:
The patent implements dynamic selection of transmission parameters for MPEG frames based on current system conditions and frame characteristics. The SMTS dynamically configures which queue each frame is placed in, allowing transmission parameters to adapt to varying bandwidth conditions and frame priorities, thereby optimizing downstream bandwidth utilization without requiring complete system redesign.
2Productivity
If dynamic configuration of MPEG frame parameters is implemented, then downstream bandwidth optimization is improved, but system complexity increases
Solution Approach 1:
The patent establishes predetermined parameters and pre-configured queues (402a, 402b, etc.) before actual MPEG frame transmission begins. By pre-defining transmission parameter sets and their associated queues, the system reduces the complexity of real-time decision-making while still enabling dynamic optimization. The SMTS simply needs to route frames to appropriate pre-configured queues based on their characteristics.
Solution Approach 2:
The patent changes transmission parameters (such as modulation schemes, coding rates, or frame structures) based on the specific requirements of different MPEG frames. By organizing frames into multiple queues with different predetermined parameters, the system achieves parameter optimization without requiring complex real-time calculation, as the parameter selection is based on pre-established criteria and configurations.
Data Source
AI summary
Provided is a method and system for transmitting MPEG frames between a DOCSIS based satellite modem termination system (SMTS) and a corresponding satellite modem (SM) system. The method includes identifying at least one data stream requiring transmission between the SMTS and the SM, the data stream including one or more MPEG frames. Next, the MPEG frames are organized within SMTS data queues based upon predetermined parameters and then transmitted based upon their organization within the data queues.