QoS Mapping Configuration for IAB Network Nodes
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in efficiently managing quality of service (QoS) mapping and routing in integrated access and backhaul (IAB) networks, leading to suboptimal packet processing and traffic management across multiple network nodes.
Innovation Solution
The implementation of a method where a third network node sends QoS mapping information to configure IP headers based on traffic types and transmits packets, while also sending mapping configurations to map information across different routing paths, enabling effective QoS management and routing optimization within the IAB network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoS mapping information is sent to configure IP headers based on traffic types, then QoS support is enhanced, but device complexity increases
Solution Approach 1:
The QoS mapping configuration is segmented into multiple components: QoS mapping information sent from third network node to first network node, mapping configuration sent from third network node to second network node, and routing path identification. This segmentation allows each node to handle specific aspects of QoS management independently, reducing individual node complexity while maintaining overall QoS reliability
Solution Approach 2:
The third network node acts as an intermediary that sends both QoS mapping information and mapping configuration to other network nodes. This intermediary approach centralizes the complexity of QoS policy management at the third node, allowing first and second nodes to execute predefined mappings without requiring complex decision-making logic
2Productivity
If mapping configuration is sent to map information across different routing paths, then packet routing efficiency is improved, but loss of information increases
Solution Approach 1:
The mapping configuration is established in advance by the third network node, creating a predefined map between routing paths and IP header information. This preliminary action allows first and second nodes to efficiently route packets by simply looking up pre-configured mappings, improving routing speed while minimizing information loss through standardized mapping fields
Solution Approach 2:
The mapping configuration transforms abstract routing path information into concrete IP header parameters that can be directly applied to packets. By changing the representation of routing information into standardized header fields, the system enables efficient packet processing while preserving essential routing information in a format suitable for network transmission
Data Source
AI summary
In an integrated access backhaul (IAB) network, a third network node sends quality of service (QOS) mapping information to a first network node to configure an internet protocol (IP) header for a packet based on a traffic type and to transmit the packet. The third network node sends a mapping configuration to a second network node to map information in the IP header for the packet received in a first routing path from the first network node to a second routing path. The first network node receives the QoS mapping information and generates a packet associated with the traffic type and including an IP header, which is configured based on the received QoS mapping information. The first network node transmits the packet for routing to the second network node.