Beam Reporting Format Selection for Positioning Accuracy
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately determining user equipment positioning and orientation due to limitations in beam reporting mechanisms, particularly in high-accuracy positioning requirements for indoor and industrial applications, where detailed beam direction and width information is needed with minimal signaling overhead.
Innovation Solution
A multi-stage signaling mechanism that allows user equipment (UE) and base stations to exchange beam reporting information in various formats (coarse-level, full-level, and differential-level) using physical uplink and downlink control channels, enabling periodic or aperiodic reporting of antenna panel usage, beam direction, and time delay information, with activation/deactivation of antenna panels based on position accuracy requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed beam reporting information is exchanged between UE and base station, then positioning accuracy is improved, but signaling overhead increases
Solution Approach 1:
The beam reporting information is segmented into multiple formats with different levels of detail (coarse-level, full-level, differential-level). The system can select appropriate granularity based on positioning requirements, providing detailed information only when high accuracy is needed while using compact representations for less demanding scenarios.
Solution Approach 2:
The patent changes the parameter of beam reporting information by introducing multiple reporting formats that vary in detail level. Different formats use different parameter representations (e.g., differential values relative to reference antenna panel, absolute values) to optimize the balance between positioning accuracy and signaling overhead based on specific service requirements.
2Measurement precision
If multiple antenna panels are activated for beam measurement, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The system dynamically activates or deactivates antenna panels based on positioning accuracy requirements. The base station can send activation/deactivation indications to the UE, allowing the antenna panel configuration to adapt to current service needs rather than maintaining a fixed complex configuration at all times.
Solution Approach 2:
The base station pre-configures multiple antenna panels and their corresponding beam reporting formats, preparing the system in advance for high-accuracy positioning when needed. The activation indications are prepared and sent only when positioning services require multiple panels, avoiding unnecessary complexity during normal operation.
3Measurement precision
If beam reporting is performed frequently, then positioning accuracy is improved, but use of energy increases
Solution Approach 1:
Beam reporting is performed periodically or semi-persistently rather than continuously. The system can adjust the reporting frequency and timing based on positioning requirements, maintaining accuracy when needed while reducing energy consumption during periods when high-precision positioning is not required.
Data Source
AI summary
There is provided an apparatus, said apparatus comprising means for receiving an indication from a base station, at a user equipment having at least one antenna panel, to provide beam reporting information according to one of a plurality of beam reporting formats and providing beam reporting information to the base station according to the indicated beam reporting format.