Neighbor SSB Configuration for Mobile IAB Interference Coordination
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Solution Overview
Problem
In wireless communications systems, mobile IAB nodes face challenges in obtaining synchronization signal block (SSB) transmission configurations due to changing neighbor nodes, leading to limited inter-node interference management and discovery, especially in dynamic environments.
Innovation Solution
Mobile IAB nodes are enabled to obtain their own SSB transmission configuration (STC) and measurement time configuration (SMTC) by various methods, allowing for coordinated scheduling and reduced inter-node interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mobile IAB nodes operate in dynamic environments with changing neighbor nodes, then the system achieves greater mobility and adaptability, but the ability to obtain and manage SSB transmission configurations of neighbor nodes deteriorates
Solution Approach 1:
The patent introduces a measurement report as an intermediary mechanism that carries SSB transmission configuration information from the mobile IAB node to the network entity. This intermediary structure enables the mobile node to indirectly obtain and report neighbor node configurations without directly maintaining complex configuration data, thus resolving the information loss problem while preserving mobility.
Solution Approach 2:
The patent implements a feedback loop where the mobile IAB node measures SSB signals from neighbor nodes, generates measurement reports containing configuration information, and transmits these reports to the network entity. The network entity then uses this feedback information to make scheduling decisions, enabling continuous adaptation to changing neighbor nodes while maintaining configuration awareness.
2Reliability
If mobile IAB nodes continuously discover and track changing neighbor nodes, then the system improves interference management capability, but the complexity of node discovery and configuration tracking increases
Solution Approach 1:
The patent enables the mobile IAB node to autonomously perform SSB measurements and generate measurement reports containing neighbor node configuration information. This self-service approach allows the node to independently track changing neighbors and provide interference management data without requiring complex centralized control, thus improving reliability while managing complexity.
Solution Approach 2:
The patent implements preliminary action by having the mobile IAB node continuously measure SSB signals and prepare measurement reports in advance before interference management is needed. This proactive tracking of neighbor node configurations enables the network entity to have configuration information ready for scheduling decisions, improving interference management reliability without requiring complex real-time processing.
3Productivity
If the network entity receives and processes measurement reports from mobile IAB nodes, then coordinated scheduling between mobile and static nodes is improved, but the signaling overhead and processing requirements increase
Solution Approach 1:
The patent extracts only the essential SSB transmission configuration information from the measurement report that is needed for coordinated scheduling, rather than transmitting complete configuration data. This selective extraction reduces signaling overhead and processing requirements while maintaining the ability to perform coordinated scheduling between mobile and static nodes effectively.
Data Source
AI summary
Certain aspects of the present disclosure provide a method for wireless communications by a first network entity. The first network entity obtains a synchronization signal block (SSB) transmission configuration (STC) of a second network entity. The first network entity measures one or more SSBs transmitted from the second network entity in accordance with the STC configuration.