IAB Node Resource Configuration for 5G Backhaul
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Solution Overview
Problem
Resource configuration between radio nodes and user terminals in future radio communication systems, such as 5G, has not been sufficiently considered, requiring improved methods for suitable resource management.
Innovation Solution
A radio node with a reception section for receiving configuration information and a control section to manage resource configurations for radio backhaul and access links, enabling effective resource allocation between nodes and user terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic resource coordination is implemented between MT and DU in IAB nodes, then resource utilization efficiency is improved, but system complexity increases due to additional L1 signaling or scheduling mechanisms
Solution Approach 1:
The patent segments the IAB node into distinct MT (Mobile Termination) and DU (Distributed Unit) functional components, allowing independent resource configuration and management for each. This segmentation enables dynamic resource coordination while maintaining manageable complexity by treating MT and DU as separate entities with specific responsibilities rather than a monolithic complex system.
Solution Approach 2:
The patent implements dynamic resource coordination mechanisms that allow the IAB node to adaptively adjust resource allocation between MT and DU based on real-time network conditions, traffic demands, and link quality. This dynamic approach improves resource utilization efficiency by enabling flexible reconfiguration rather than static resource assignment.
2Adaptability or versatility
If flexible slot formats are configured for overlapping slots in IAB, then adaptability of resource allocation is improved, but control complexity increases
Solution Approach 1:
The patent employs parameter changes by configuring flexible slot formats that can dynamically adjust time-domain resource allocation parameters for overlapping slots. Different slot formats can be selected based on traffic patterns and link conditions, allowing the system to adapt resource allocation without requiring complete reconfiguration of the underlying physical layer parameters.
3Stability of the object's composition
If semi-static time-domain resource allocation is used for IAB nodes, then resource configuration stability is improved, but responsiveness to changing conditions deteriorates
Solution Approach 1:
The patent uses semi-static time-domain resource allocation where resource configurations are predetermined and pre-configured for different scenarios. This preliminary action provides stable baseline resource allocation while allowing faster adaptation when conditions change, as the system can switch between pre-configured options rather than performing complex real-time optimization.
Data Source
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AI summary
A radio node includes: a reception section that receives first configuration information relating to a first radio backhaul link and second configuration information relating to at least one of a second radio backhaul link and a radio access link; and a control section that controls a first resource configuration for the first radio backhaul link and a second resource configuration for at least one of the second radio backhaul link and the radio access link, based on the first configuration information and the second configuration information.