Dynamic Data Packet Scheduling for Wireless Channel Adaptation
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Solution Overview
Problem
Existing communication systems face inefficiencies in data packet scheduling due to prioritization methods that do not adequately consider the varying wireless channel environment, leading to suboptimal performance in both poor and good channel conditions.
Innovation Solution
A method and apparatus for scheduling data packets that group real-time packets by their allowed transmission delay time, determine the number of priority packets using a predetermined criterion, and prioritize them based on their delay time, ensuring efficient transmission in both poor and good wireless channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-time data packets always take priority over non-real time data packets in transmission scheduling, then the probability of failing to transmit real-time data packets within allowed transmission time is reduced, but transmission of non-real time data packets becomes impossible when resources are exhausted
Solution Approach 1:
The patent implements dynamic scheduling that adapts to wireless channel conditions. When channel conditions are good, non-real time packets can be transmitted; when conditions are poor, real-time packets are prioritized. This dynamic adjustment resolves the contradiction by making the priority scheme flexible rather than fixed.
Solution Approach 2:
The patent changes the scheduling parameter (priority allocation) based on wireless channel environment parameters. By monitoring channel quality and adjusting the number of real-time packets to transmit with priority accordingly, the system optimizes both real-time delivery reliability and overall transmission efficiency.
2Reliability
If scheduling is performed based only on allowed transmission delay time without considering wireless channel environment, then QoS requirements are met, but total performance of the communication system is suboptimal
Solution Approach 1:
The patent merges two scheduling considerations: QoS requirements (allowed transmission delay time) and wireless channel environment conditions. By combining these factors into a unified scheduling decision framework, the system achieves both QoS satisfaction and optimized total performance.
Solution Approach 2:
The patent introduces feedback from wireless channel environment monitoring into the scheduling decision process. The scheduler continuously monitors channel conditions and adjusts packet priority allocation based on this feedback, enabling adaptive optimization of system performance while maintaining QoS.
Data Source
AI summary
An apparatus and method of scheduling data packets in a communication system are provided, in which the number of first-type data packets to be transmitted with priority is determined according to a predetermined criterion from among total first-type data packets, and the determined number of first-type data packets and second-type data packets are scheduled so as to transmit the determined number of first-type data packets and then transmit the second-type data packets.