Beam-Specific Radio Environment Notification for Lower UE Signaling Load
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Solution Overview
Problem
Existing methods for conveying radio environment information to user equipment (UE) result in excessive signaling overhead, particularly in multi-beam systems, and do not efficiently manage memory and power consumption at the UE.
Innovation Solution
Implementing per-beam broadcasting of radio path and object information, where the UE receives and manages radio path or object information relevant only to specific base station beams, reducing unnecessary signaling and memory requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cell-specific broadcasting is used to convey radio environment information, then all UEs in the coverage area receive the information, but signaling overhead becomes excessively large when the number of identified multi-path or radio objects becomes large
Solution Approach 1:
The patent segments radio environment information by associating it with specific base station beams rather than broadcasting cell-wide information. Each beam transmits only the radio objects and multi-path information relevant to its coverage sector, dividing the overall information set into beam-specific portions that reduce redundant transmission to UEs.
Solution Approach 2:
The patent applies local quality by providing customized radio environment information tailored to each beam's local coverage area. Each beam transmits information about radio objects and propagation conditions specific to its directional coverage, rather than uniform cell-wide information, optimizing the relevance and reducing the quantity of signaling for each UE.
2Adaptability or versatility
If repeated broadcasting is performed over multiple base station beams in multi-beam systems, then information is delivered to UEs in different beam directions, but signaling overhead increases significantly
Solution Approach 1:
The patent segments the radio environment information transmission by beam, where each base station beam transmits only the subset of radio objects and multi-path information relevant to its specific coverage direction. This prevents the same information from being repeatedly transmitted across all beams, reducing overall signaling overhead while maintaining adaptability to multiple beam directions.
3Object-affected harmful factors
If UE-specific provision of radio environment information is implemented, then information is tailored to individual UEs, but signaling overhead becomes large when the number of UEs becomes large
Solution Approach 1:
The patent introduces beam-specific information as an intermediary layer between cell-wide broadcasting and UE-specific provisioning. Each beam transmits radio environment information that is generally applicable to UEs in that beam's coverage area, providing localized accuracy without requiring individualized signaling for each UE, thus reducing overhead while improving positioning accuracy.
4Measurement precision
If comprehensive radio environment information is provided to all UEs, then positioning accuracy is improved, but memory usage and power consumption at the UE increase
Solution Approach 1:
The patent segments the radio environment information received at the UE by beam, allowing the UE to process and store only the information relevant to its current serving beam rather than comprehensive cell-wide information. This reduction in information volume decreases memory usage and processing requirements, thereby reducing power consumption while maintaining positioning accuracy through beam-specific precision data.
Data Source
AI summary
A radio environment notification method is provided that includes broadcasting a first notification in a beam specific manner that includes information about at least one radio path or at least one radio object within the coverage area of a base station beam. A second notification is transmitted in a UE specific manner that may pertain to configuration for storage or utilization, or both, of radio path or radio object information at one UE.