Radio Node QCL Assumptions for Flexible SSB Measurement
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Solution Overview
Problem
Studies on signal measurement and connection between radio nodes, such as IAB nodes, are insufficient, necessitating more flexible solutions.
Innovation Solution
The radio node and communication method enable flexible signal measurement and connection by allowing for more than 64 SSBs, varying beam patterns, extended periodicity, and broader bandwidth measurements, and explicit QCL assumptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of SSBs is limited to 64, then the system complexity is controlled, but the flexibility and adaptability of beam patterns are insufficient
Solution Approach 1:
The patent applies dynamics by making the SSB configuration flexible and adaptable rather than fixed. The system dynamically adjusts SSB parameters including allowing more than 64 SSBs, varying beam patterns, extended periodicity, and broader bandwidth measurements based on network conditions and requirements, resolving the contradiction between flexibility and complexity.
Solution Approach 2:
The patent changes key parameters of the SSB system: increasing the number of SSBs beyond 64, varying beam patterns, extending periodicity, and expanding bandwidth measurements. These parameter changes enable greater adaptability while the system manages complexity through controlled configuration options and explicit QCL assumptions.
2Measurement precision
If measurement bandwidth is extended, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by allowing selective extension of measurement bandwidth rather than requiring full bandwidth measurement in all cases. The system can configure measurement bandwidth according to specific needs, enabling improved measurement precision when necessary while avoiding unnecessary power consumption when full bandwidth measurement is not required.
3Measurement precision
If beam sharpness is increased, then signal focus is improved, but coverage area is reduced
Solution Approach 1:
The patent applies segmentation by dividing the coverage area into multiple sectors or regions, each served by sharp, focused beams. The system uses multiple SSBs with varying beam patterns to cover different areas, allowing individual beams to be sharp and focused while collectively providing broad coverage through the segmented approach.
Solution Approach 2:
The patent transitions from a single-dimension coverage approach to multi-dimensional beamforming. By using three-dimensional beam patterns and spatial QCL assumptions, the system achieves sharp signal focus in specific directions while maintaining overall coverage through spatial diversity, effectively adding dimensional complexity to resolve the contradiction.
Data Source
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AI summary
A radio node includes: a reception section that periodically receives a plurality of signals including at least one of synchronization information and broadcast channel information; and a control section that determines whether to assume QCL (Quasi Co-Location) between the signal in a first period and the signal in a second period based on at least one of the synchronization information and the broadcast channel information.