Height-Based SSB Measurement Lists for Aerial UE Signal Detection
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Solution Overview
Problem
Aerial UEs face challenges in selecting suitable Synchronization Signal Blocks (SSBs) due to fragmented aerial coverage and line-of-sight propagation conditions, making it difficult to efficiently detect network signals.
Innovation Solution
A method and apparatus that provide a height-based list of SSBs for wireless devices to measure, allowing UEs to select reference signals suitable for their altitude, thereby improving signal reception rates by avoiding unnecessary scans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network transmits SSBs in multiple directions to support aerial UEs, then the coverage and signal detection capability are improved, but the complexity of SSB selection for the UE increases due to fragmented aerial coverage
Solution Approach 1:
The patent segments the SSB measurement process by dividing SSBs into multiple lists based on height ranges. Each list contains SSBs suitable for specific altitude intervals, allowing aerial UEs to select from a pre-organized subset rather than evaluating all SSBs. This segmentation reduces the complexity of SSB selection while maintaining reliable signal detection across different aerial heights.
2Reliability
If aerial UEs scan all available SSBs to ensure signal detection, then the reliability of connection establishment is improved, but the time and energy consumption increase due to unnecessary scans
Solution Approach 1:
The network performs preliminary action by pre-configuring multiple SSB lists according to different height ranges before aerial UEs需要进行SSB测量。Each list is prepared in advance with SSBs appropriate for specific altitude intervals. When an aerial UE needs to measure SSBs, it can directly use the pre-configured list corresponding to its current height, avoiding the need to scan all available SSBs and significantly reducing scanning time while ensuring reliable connection establishment.
3Adaptability or versatility
If the network provides comprehensive SSB information for all height ranges, then the adaptability to different aerial UEs is improved, but the amount of information that needs to be processed increases
Solution Approach 1:
The patent applies segmentation by dividing comprehensive SSB information into multiple discrete lists, each corresponding to a specific height range. Instead of providing all SSB information in a single large dataset, the network organizes SSBs into structured lists based on altitude intervals. This allows aerial UEs to access only the relevant portion of information corresponding to their current height, maintaining high adaptability while reducing the volume of information that needs to be processed.
Data Source
AI summary
A method and apparatus for height-based list of Synchronization Signal Block (SSB) to measure in a wireless communication system is provided. A wireless device receives, from a network, a measurement configuration including information on measurement objects. The information on the measurement objects includes (i) information on a height-based list of Synchronization Signal Block (SSB) to measure and (ii) information on a height range corresponding to the height-based list of SSB to measure. Based on a current height of the wireless device being in the height range, the wireless device performs measurements based on the height-based list of SSB to measure associated with the height range.