Multi-Terminal Association for Indoor Positioning Accuracy
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Solution Overview
Problem
Existing cellular-based positioning technologies face challenges in achieving accurate and reliable positioning, particularly in indoor environments, due to issues such as dynamic fingerprint changes and loss of satellite signals, and there is a need for improved methods to manage the association and capabilities of multiple user equipment (UEs) for enhanced positioning accuracy.
Innovation Solution
A method for associating multiple terminal devices, such as 5G UEs, to enhance positioning accuracy by using syncretic processing of Time of Arrival (ToA) measurements and managing the association dynamically, with options for signaling and processing at different network and device levels, including UE-UE interconnection for measurement aggregation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple terminal devices are used for positioning, then positioning accuracy and reliability are improved, but device complexity and association management difficulty increase
Solution Approach 1:
The patent combines multiple terminal devices into a unified positioning entity by establishing associations between them. The network manages these associations to aggregate positioning measurements from multiple devices, treating them as a coordinated system rather than independent units, thereby improving positioning accuracy while centralizing management complexity in the network.
Solution Approach 2:
The network acts as an intermediary between multiple terminal devices for positioning purposes. The network receives association information from terminals, manages the associations, and coordinates positioning measurements. This intermediary role simplifies terminal device complexity by centralizing association management in the network infrastructure.
2Adaptability or versatility
If dynamic association management is implemented, then adaptability to changing positioning scenarios is improved, but signaling complexity and processing overhead increase
Solution Approach 1:
The patent implements dynamic association management where terminal device associations can be established, modified, and terminated based on positioning needs. The network dynamically responds to association information from terminals and adjusts positioning configurations accordingly, enabling adaptability to changing scenarios while managing signaling through standardized protocols.
Solution Approach 2:
The network receives association information from terminal devices and provides feedback through positioning configurations and measurement requests. This feedback mechanism enables the system to adapt to association changes while using established signaling protocols to manage the complexity of dynamic management.
3Reliability
If syncretic processing of ToA measurements is used, then positioning reliability is improved, but measurement processing time and computational complexity increase
Solution Approach 1:
The patent segments the syncretic processing task by having individual terminal devices perform local ToA measurements independently, then the network aggregates these segmented measurements. This division of labor improves reliability through multiple measurements while reducing the processing time burden on any single device by leveraging distributed measurement capabilities.
Data Source
AI summary
The present disclosure is related to a terminal device, network nodes, and methods for associating multiple terminal devices such that a target can be positioned by using the multiple terminal devices. A method at a first terminal device for positioning a target that is associated with multiple terminal devices comprising the first terminal device comprises: obtaining an association with at least one second terminal device from the multiple terminal devices other than the first terminal device; and using association data for positioning.