Non-cell-defining Synchronization Signal Block Measurement Configuration
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Solution Overview
Problem
In wireless communication systems, the overlap of bandwidth parts (BWP) with both cell-defining synchronization signal blocks (CD-SSB) and non-cell-defining synchronization signal blocks (NCD-SSB) can lead to inaccurate measurements, reducing the quality and reliability of communications.
Innovation Solution
A method where a user equipment (UE) receives a configuration for a BWP that overlaps with both CD-SSB and NCD-SSB frequency resources, and performs measurements using the CD-SSB during an active state of the BWP, or uses the NCD-SSB as indicated in the configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the BWP overlaps with both CD-SSB and NCD-SSB frequency resources, then the configuration flexibility is improved, but the measurement accuracy deteriorates
Solution Approach 1:
The patent applies local quality by making the measurement behavior dependent on the specific location/overlap scenario. When BWP overlaps with CD-SSB, the UE measures CD-SSB; when it overlaps with NCD-SSB only, the UE measures NCD-SSB. This localized decision-making based on specific frequency resource overlap conditions resolves the measurement accuracy issue while preserving configuration flexibility.
Solution Approach 2:
The patent inverts the conventional approach by not requiring explicit configuration indicators for NCD-SSB measurements. Instead, the UE autonomously determines whether to measure NCD-SSB based on the absence of CD-SSB in the BWP configuration. This inversion simplifies the configuration overhead while maintaining measurement accuracy.
2Reliability
If the UE performs measurements using both CD-SSB and NCD-SSB, then the measurement coverage is improved, but the processing complexity increases
Solution Approach 1:
The patent applies partial action by having the UE measure only the necessary SSB type based on BWP configuration. The UE performs CD-SSB measurement when needed, and NCD-SSB measurement only when CD-SSB is not configured. This avoids the excessive complexity of always measuring both types while maintaining sufficient measurement coverage for reliable communication.
3Reliability
If the configuration includes explicit NCD-SSB indicators, then the measurement reliability is improved, but the signaling overhead increases
Solution Approach 1:
The patent extracts the NCD-SSB measurement decision from explicit configuration signaling. Instead of including separate indicators for NCD-SSB measurements, the patent removes this overhead by enabling UEs to autonomously determine NCD-SSB measurement needs based on the BWP configuration and overlap conditions, thereby reducing signaling overhead while maintaining measurement reliability.
Solution Approach 2:
The patent applies self-service by enabling UEs to autonomously make measurement decisions without requiring explicit network configuration for NCD-SSB. The UE independently determines whether to measure NCD-SSB based on the BWP configuration, eliminating the need for additional signaling overhead while ensuring reliable measurement behavior.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for a bandwidth part (BWP). The BWP may overlap with one or more first frequency resources associated with a cell-defining synchronization signal block (CD-SSB) and one or more second frequency resources associated with a non-cell-defining synchronization signal block (NCD-SSB). The UE may perform a measurement using the NCD-SSB (and not the CD-SSB) during an active state of the BWP. Numerous other aspects are described.