Encoder Packets Tailored to QoS for Wireless Resource Efficiency
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Solution Overview
Problem
Current wireless communication systems waste transmitter resources by setting transmit power based on the most stringent Quality of Service (QoS) requirements for multiple application flows, failing to consider less stringent requirements, which leads to excessive power expenditure for flows with better performance needs.
Innovation Solution
The method involves mapping application flow bits to encoder packets (EPs) in a way that EP characteristics are tailored to specific QoS requirements, using a signaling scheme to synchronize transmitters and receivers, and decomposing bandwidth into orthogonal segments for concurrent transmission of EPs, each tailored to its respective application flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmit power is set based on the most stringent QoS requirements for multiple application flows, then the most stringent QoS requirements are met, but transmitter resources are wasted on flows with less stringent requirements
Solution Approach 1:
The patent segments multiple application flows into separate encoder packets, allowing each packet to be configured with transmit power and coding parameters specifically matched to its QoS requirements. This segmentation enables differentiated resource allocation where high-priority flows receive enhanced power while low-priority flows use minimal resources, resolving the contradiction between meeting stringent QoS requirements and avoiding transmitter resource waste.
2Device complexity
If EP characteristics are standardized for all application flows, then system complexity is reduced, but resource efficiency deteriorates due to inability to optimize for specific flow requirements
Solution Approach 1:
The patent introduces dynamic configuration of encoder packet characteristics including variable transmit power levels, adjustable coding schemes, and flexible modulation formats based on real-time QoS requirements of different application flows. This dynamic adaptation allows the system to optimize resource efficiency for each flow while maintaining manageable complexity through standardized configuration procedures and automated parameter selection.
3Reliability
If transmit power is increased to ensure reliable reception, then reception reliability improves, but energy consumption increases
Solution Approach 1:
The patent applies local quality by assigning different transmit power levels and coding configurations to different encoder packets based on their specific QoS requirements and channel conditions. High-priority flows with stringent reliability requirements receive higher power and more robust coding, while low-priority flows use minimal power with simpler coding, thereby achieving reception reliability where needed while minimizing overall energy consumption.
Data Source
AI summary
A method is provided for communicating data belonging to at least one application flow (AF). In one aspect, the method involves mapping the data to payload bits of two or more encoder packets (EPs) such that each said EP carries a payload dedicated to only one AF, and transmitting the EPs concurrently. In a second aspect, the above said mapping is inverted at a receiver.