Wireless Transmitter Dynamic Priority Transmission
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Solution Overview
Problem
Current wireless transceiver systems face challenges in efficiently transmitting high-quality video data to multiple receivers over wireless networks due to limited bandwidth, as they often require redundant data and fixed priority levels, which can lead to suboptimal use of transmission resources.
Innovation Solution
The system dynamically adjusts physical transmission parameters such as bit rate, power, and bandwidth for each data unit based on its relative usefulness, allowing for fine-grained control and varying priority levels, thereby optimizing the transmission of high-value data units within fixed bandwidth constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If compression and network coding are used to reduce data transmission, then bandwidth efficiency is improved, but transmission reliability and quality for high-quality video deteriorate
Solution Approach 1:
The patent assigns different priority levels to different data units based on their individual usefulness to the application. Critical data units (e.g., I-frames in video) receive higher priority with more robust transmission parameters, while less critical data units receive lower priority. This local differentiation of quality and protection levels resolves the contradiction by ensuring reliability for essential data while maintaining bandwidth efficiency for less essential data.
2Device complexity
If fixed priority levels are assigned to all data units in a communication flow, then device complexity is reduced, but transmission efficiency and adaptability deteriorate
Solution Approach 1:
The patent implements dynamic priority assignment where the priority level of each data unit is determined based on real-time factors such as application-specific usefulness, channel conditions, and data unit characteristics. This dynamic approach allows the system to adapt to changing conditions and optimize transmission efficiency without requiring overly complex manual configuration, as the priority levels are automatically adjusted based on predefined criteria and feedback.
3Reliability
If redundant data units are assigned to useful data for unequal error protection, then transmission reliability is improved, but bandwidth consumption increases
Solution Approach 1:
The patent changes the transmission parameters (such as modulation scheme, coding rate, or repetition level) based on the priority assignment of each data unit. High-priority data units receive parameters that provide better error protection, while low-priority data units use more bandwidth-efficient parameters. This parameter adaptation allows the system to provide unequal error protection without uniformly increasing bandwidth consumption across all data.
Data Source
AI summary
A wireless transmission system identifies priorities of data units and changes at least one of the physical transmission rates of the bits of the data unit, the order of transmission of the data units; and the number of retransmission attempts of the data units based on their individual priorities.