SSB-Based Interference Measurement in IAB Networks
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Solution Overview
Problem
Current wireless communication systems, particularly in Integrated Access and Backhaul (IAB) networks, face challenges in efficiently measuring and mitigating interference between nodes, which affects communication quality and network performance.
Innovation Solution
The implementation of synchronization signal block (SSB)-based interference measurements, where nodes determine and use SSB resources for periodic transmissions to perform interference measurements and communicate the results within the network, enabling effective interference management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If nodes perform interference measurements using traditional methods, then interference management can be achieved, but measurement accuracy and communication quality are insufficient
Solution Approach 1:
The patent introduces Synchronization Signal Blocks (SSBs) as an intermediary resource for interference measurement. Instead of using dedicated measurement resources, the SSBs serve as a mediator that enables accurate interference measurement between parent and child nodes while maintaining synchronization functionality. This resolves the contradiction by providing a reliable measurement mechanism that improves both measurement precision and communication reliability.
Solution Approach 2:
The patent makes SSBs multi-functional by using them both for synchronization purposes and for interference measurement. The same SSB resources serve dual functions: maintaining network synchronization and enabling accurate interference measurement. This universal approach improves measurement accuracy without requiring additional dedicated resources, thereby enhancing communication quality.
2Measurement precision
If SSB resources are used for interference measurements, then measurement accuracy improves, but resource coordination complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where measurement results are reported from child nodes to parent nodes, and resource allocation decisions are adjusted based on these reports. The parent node receives interference measurement reports and uses this feedback to optimize SSB resource allocation, reducing coordination complexity while maintaining measurement accuracy. This closed-loop approach allows the system to adapt to changing interference conditions without manual intervention.
Solution Approach 2:
The patent enables nodes to autonomously determine and use SSB resources for their own interference measurements without requiring complex centralized coordination. Each node can independently identify SSB resources and perform measurements, reducing the overall system complexity. The self-service approach allows nodes to autonomously manage their measurement activities while the network maintains coordination through standardized protocols.
Data Source
AI summary
Aspects of the present disclosure provide techniques for interference measurements based on synchronization signal blocks (SSB) in a network (e.g., an Integrated Access and Backhaul (IAB) network. In some cases, a node determines resources used for periodic SSB transmissions by at least one parent node of the network, uses the determined resources to perform SSB-based interference measurements, and communicates with at least one of the parent node, a central unit (CU), or another node of the network based on the SSB-based interference measurements.