Multi-Path Data Flow Steering for Dependency-Aware QoS
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Solution Overview
Problem
Current XR service transmission technologies fail to efficiently manage multi-path data flow due to the inability of intermediate nodes to perform QoS processing based on PDU set integrity and dependency relationships, leading to inefficient data scheduling and packet discarding.
Innovation Solution
A method and apparatus for multi-path data flow steering that groups protocol data unit sets based on their dependency relationships, allowing for differentiated QoS processing and improved resource utilization by steering PDUs to appropriate paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If protocol data unit sets are distributed to different paths, then data transmission parallelism is improved, but intermediate nodes cannot perform QoS processing based on PDU set integrity
Solution Approach 1:
The patent introduces a path identification field as an intermediary element that carries path information within the PDU structure. This intermediary enables intermediate nodes to identify which path a PDU traverses without disrupting the distributed transmission model, thereby restoring QoS processing capability while maintaining transmission parallelism
Solution Approach 2:
The patent segments the data transmission by introducing path-specific identification fields within PDUs, allowing intermediate nodes to process QoS requirements for each path segment independently while maintaining overall PDU set integrity across multiple paths
2Productivity
If protocol data unit sets with dependency relationships are distributed to different paths, then transmission load balancing is improved, but differentiated QoS processing based on dependency relationships cannot be performed
Solution Approach 1:
The path identification field serves as an intermediary that preserves dependency relationship information across paths, enabling intermediate nodes to perform differentiated QoS processing by identifying both the PDU set membership and the specific path taken, thus managing complexity through structured information carrying
Solution Approach 2:
The patent changes the parameter space by adding path identification information to PDUs, transforming the system from one that cannot distinguish paths to one that can, enabling differentiated QoS processing without fundamentally changing the distributed transmission architecture
3Productivity
If multi-path transmission is implemented, then transmission efficiency is improved, but unnecessary transmissions occur due to lack of frame integrity assurance
Solution Approach 1:
The path identification field provides feedback information to intermediate nodes about which path each PDU is taking, enabling nodes to make informed decisions about packet discarding and retransmission based on frame integrity requirements, thus avoiding unnecessary transmissions while maintaining multi-path efficiency
Solution Approach 2:
The patent performs preliminary action by embedding path identification information in PDUs before transmission, enabling intermediate nodes to pre-determine appropriate QoS actions (such as discarding duplicate packets or prioritizing certain paths) based on the identified path and frame dependency relationships
Data Source
AI summary
This application provides a multi-path data flow steering method and an apparatus, and relates to the field of communication technologies. The method includes: a communication device obtains a data flow, where the data flow includes a first group of protocol data unit sets and a second group of protocol data unit sets. The communication device determines a steering mode that is based on each group of protocol data unit sets, and sends the first group of protocol data unit sets on a first path. The communication device sends the second group of protocol data unit sets on a second path.