IAB Donor CU Resource Coordination for Interference Mitigation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing resource configurations for integrated access and backhaul radio access dual connectivity, leading to interference and reduced throughput in wireless networks.
Innovation Solution
The implementation of an apparatus and method that coordinates resource configurations between IAB donor CUs to reduce interference and enhance throughput by exchanging cell resource configurations that account for dual connectivity, allowing for compatible resource usage between IAB nodes and parent nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If resource configurations are managed independently at each IAB donor CU, then device complexity is reduced and ease of operation is improved, but interference increases and throughput decreases
Solution Approach 1:
The patent introduces an intermediary coordination mechanism where IAB donor CUs exchange resource configuration information through a standardized interface. This intermediary information exchange system allows independent CUs to coordinate their resource allocations, reducing interference between IAB nodes while maintaining the operational simplicity of distributed CU management.
2Productivity
If resource configurations are coordinated between IAB donor CUs, then interference is reduced and throughput is enhanced, but network overhead increases
Solution Approach 1:
The patent extracts only the essential resource configuration parameters that are necessary for interference mitigation and transmits them between IAB donor CUs. By selecting and transmitting only the critical information elements needed for coordination rather than complete configuration data, the solution reduces network overhead while still achieving the desired interference reduction and throughput enhancement.
3Manufacturing precision
If detailed resource configuration information is exchanged between IAB donor CUs, then resource allocation precision is improved, but processing resources are consumed
Solution Approach 1:
The patent applies local quality by exchanging detailed resource configuration information selectively and locally between adjacent or related IAB donor CUs that have overlapping coverage areas or interfering IAB nodes. Rather than universally exchanging detailed information between all CUs in the network, the coordination is localized to where it is actually needed for interference mitigation, thereby maintaining high resource allocation precision while minimizing overall processing resource consumption.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive, from a first integrated access and backhaul (IAB) donor central unit (CU), information indicating a first resource configuration used by an IAB node that has a first connection with a first parent IAB node that is a child of the first IAB donor CU. The first network node may transmit, to a second parent IAB node that is a child of the first network node, the information. Numerous other aspects are described.