Sensor-Free UE Orientation Estimation From Cellular Signals
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Solution Overview
Problem
Existing cellular network-based solutions are limited to UE localization and do not support estimation of UE orientation, which is necessary for enhanced applications such as augmented reality, virtual reality, and remote navigation.
Innovation Solution
A method for a UE to obtain assistance information from a network node for measuring reference signals, and a network node to determine UE orientation based on these measurements, enabling the estimation of UE orientation and providing relevant information for navigation and sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing cellular network-based positioning methods are used, then UE localization is achieved, but UE orientation estimation is not supported
Solution Approach 1:
The patent extends the existing positioning measurement framework to serve dual purposes: traditional UE localization and new UE orientation estimation. By reusing existing positioning infrastructure and measurement procedures for both localization and orientation, the system achieves multi-functionality without requiring completely separate systems.
Solution Approach 2:
The patent introduces new measurement parameters (orientation-related measurements) to the existing positioning framework. By adding orientation parameters to the conventional positioning measurements, the system can simultaneously determine both position and orientation of the UE using the same infrastructure.
2Measurement precision
If UE sensors are used for orientation estimation, then orientation information is obtained, but system complexity and device requirements increase
Solution Approach 1:
The patent replaces the mechanical sensor-based orientation measurement system with a radio-based measurement system. Instead of relying on physical sensors in the UE to detect orientation, the system uses radio signal measurements between the UE and network nodes to infer orientation, thereby eliminating the need for additional UE sensors.
Solution Approach 2:
The network infrastructure performs the orientation estimation function using measurements obtained during normal positioning operations. The network nodes process the measurement data to determine UE orientation, making the system self-sufficient without requiring the UE to have specialized orientation sensing capabilities.
Data Source
AI summary
The present disclosure relates to a method performed by a UE (105) for handling information of relevance during a positioning occasion in a communications system (100). The UE (105) obtains assistance information from a network node (101). The UE (105) measures reference signals based on the assistance information. The UE (105) provides positioning measurement information based on the measured reference signals to the network node (101). The UE (105) obtains UE orientation information from the network node (101). The UE orientation information has been estimated by the network node (101). The UE (105) obtains information of relevance from the network node (101). The information of relevance is dependent on a UE position in which the UE (105) is currently located and a UE orientation. The UE (105) takes an action based on the obtained information of relevance.