Terminal Path Error Reporting for UAV Handover and Beam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 3GPP specifications do not define the degree of error or required accuracy for path information transmitted by UAVs, leading to inaccuracies in controlling handover and beam directivity due to temporal and spatial errors in the UAV's movement.
Innovation Solution
A terminal apparatus generates and transmits error information, such as temporal and spatial errors, along with path information to a base station apparatus, enabling the base station to recognize and adjust for these inaccuracies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If path information is transmitted without error definitions, then device complexity is reduced, but measurement precision and reliability of handover control deteriorate
Solution Approach 1:
The patent introduces new parameters (error information, accuracy indicators) to the existing path information transmission mechanism. By changing the information structure from simple path coordinates to enhanced path data including error metrics, the system achieves better measurement precision without fundamentally redesigning the communication protocol, thus resolving the contradiction between complexity and precision.
Solution Approach 2:
The patent implements a feedback mechanism where the terminal apparatus reports error information about path information accuracy to the base station apparatus. This feedback loop allows the base station to adjust handover decisions based on actual path accuracy, improving reliability while maintaining manageable system complexity through standardized feedback protocols.
2Reliability
If error information is transmitted with path information, then reliability of handover control is improved, but device complexity and information transmission overhead increase
Solution Approach 1:
The patent merges error information with path information into a unified data structure for transmission. By combining the path coordinates and error metrics in a single information element, the system reduces the overhead of separate error reporting mechanisms while maintaining enhanced reliability. This consolidation approach resolves the contradiction by achieving better reliability without proportionally increasing complexity.
Solution Approach 2:
The patent applies partial action by selectively transmitting error information only when necessary or when within acceptable thresholds. The system can choose to transmit enhanced path information with error data when high reliability is needed, while using simplified path information when errors are within acceptable ranges, thus balancing reliability improvement with complexity management.
Data Source
AI summary
A terminal apparatus includes a controller and a communicator. The controller is configured to generate path information that is used by a base station apparatus and related to a path of the terminal apparatus, and generate error information for the path information. The communicator is configured to transmit the error information to the base station apparatus.