Dynamic Priority Logic Channel Prioritization for PDU Sets
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Solution Overview
Problem
Current wireless communications systems face challenges in managing protocol data unit (PDU) sets, where all data packets within a set have the same quality of service (QoS) requirements, leading to inefficiencies in processing and transmission due to static priority models that do not account for the collective deadline of PDU sets, resulting in potential data loss if any packet misses its deadline.
Innovation Solution
Implementing a dynamic priority model for data packets within PDU sets, where packets closer to their deadline receive higher priority, and discarding the entire PDU set when the discard time expires, to enhance the logical channel prioritization process and meet QoS requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a static priority model is used for data packets in PDU sets, then the processing is simpler, but the transmission efficiency deteriorates because all packets are treated equally regardless of their deadline proximity
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a static priority model to a dynamic priority model where the priority of each data packet is not fixed but changes over time based on its deadline. The priority value is recalculated for each packet according to how close its transmission deadline is, allowing the system to adapt to changing conditions and optimize transmission efficiency without requiring complex manual intervention.
2Productivity
If a dynamic priority model is implemented for data packets in PDU sets, then the transmission efficiency improves by prioritizing packets closer to deadlines, but the processing complexity increases
Solution Approach 1:
The patent applies the parameter changes principle by modifying the priority parameter of data packets dynamically based on their deadline proximity. Instead of using a fixed priority value, the system continuously updates the priority parameter according to the time remaining until the packet's deadline, enabling efficient transmission prioritization through systematic parameter adjustment rather than complex algorithmic processing.
3Adaptability or versatility
If individual packets are processed independently, then the processing is more flexible, but the QoS requirements deteriorate because the collective deadline of the PDU set is not met if any single packet misses its deadline
Solution Approach 1:
The patent applies the merging principle by combining the processing of individual packets within a PDU set while maintaining their individual characteristics. The system processes each packet independently according to its own deadline, but the overall PDU set QoS requirement is satisfied by ensuring that the prioritization mechanism considers the collective deadline. This approach maintains processing flexibility for individual packets while guaranteeing QoS through coordinated prioritization.
Data Source
AI summary
Certain aspects of the present disclosure provide a method for wireless communications by a node. The node receives a plurality of data packets belonging to a protocol data unit (PDU) set. Each of the plurality of data packets is associated with a dynamic priority. The node delivers the plurality of data packets to a lower layer, in accordance with the dynamic priority associated with each of the plurality of data packets.