UE Path Availability Signaling for NR UAV Mobility Management
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Solution Overview
Problem
Existing wireless communication systems for unmanned aerial vehicles (UAVs) face challenges in efficiently managing mobility and data transmission, particularly in New Radio (NR) systems, due to the need for advanced path planning and resource allocation without sufficient indication of available moving paths.
Innovation Solution
The UE autonomously sends indication information to the network device regarding its available moving path, using predefined fields and messages like RRC, MAC, or UCI, to facilitate efficient resource allocation and reduce unnecessary network preparations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device performs handover preparation and resource allocation based on assumed UE moving paths, then mobility management is maintained, but signaling overhead increases and network efficiency decreases due to outdated path information
Solution Approach 1:
The patent extracts the path availability indication from the complex handover signaling process. The UE independently determines whether it has an available moving path and sends a simple indication information (1 bit) to the network device, separating this critical information from other handover signaling and reducing overall signaling overhead while maintaining reliable mobility management.
Solution Approach 2:
The UE performs preliminary determination of path availability before handover occurs. By proactively indicating whether it has an available moving path in advance, the UE enables the network device to prepare appropriate handover strategies beforehand, avoiding unnecessary signaling exchanges during the actual handover process.
2Measurement precision
If the UE sends detailed moving path information to the network device, then path planning accuracy improves, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent extracts only the essential path availability status from the complete moving path information. Instead of transmitting detailed path coordinates, waypoints, or trajectory data, the UE sends a simplified indication (presence or absence of available path), reducing signaling complexity while providing the network device with sufficient information for effective handover decision-making.
Solution Approach 2:
The patent applies partial action by transmitting only the critical subset of path information needed for handover decisions. The UE sends merely the path availability indication rather than complete path details, which is sufficient for the network device to determine appropriate handover strategies without the burden of processing extensive path data.
3Reliability
If the network device allocates resources based on assumed UE paths, then continuous connectivity is maintained, but resource allocation efficiency decreases due to outdated path information
Solution Approach 1:
The patent implements a feedback mechanism where the UE continuously monitors its moving path availability and provides real-time indications to the network device. This feedback loop enables the network device to adjust resource allocation dynamically based on actual UE path status, maintaining connectivity while significantly improving resource allocation efficiency by preventing allocation based on outdated path information.
Solution Approach 2:
The UE provides preliminary indication of path availability before the network device performs resource allocation. This advance information allows the network device to pre-configure resources appropriately, avoiding wasteful allocation based on assumed or outdated paths while ensuring continuous connectivity is maintained.
Data Source
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AI summary
Embodiments of the present invention provide an information processing method, which is applied to a UE. The method comprises: sending indication information to a network device according to whether the UE has an available moving path, wherein the indication information is used for indicating whether the UE has an available moving path.