UWB Pointing Detection for Non-UWB IoT Device Selection
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Solution Overview
Problem
Existing IoT devices that do not support Ultra Wide Band (UWB) technology cannot interact effectively with UWB devices, leading to differing interaction methods and diminished user experience.
Innovation Solution
A method and apparatus for determining a device pointed to by user equipment (UE) that utilizes spatial information from UWB devices to identify and control non-UWB devices, enabling consistent interaction across both types of devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UWB technology is used for device interaction, then spatial perception capability and interaction precision are improved, but device compatibility deteriorates because most IoT devices do not support UWB
Solution Approach 1:
The patent uses Bluetooth Low Energy (BLE) as an intermediary technology to bridge UWB and non-UWB devices. The UE first establishes a BLE connection with the target device to obtain basic spatial information, then uses UWB spatial perception capabilities to determine precise pointing direction. This two-stage approach allows UWB's high precision to be applied only when needed, while maintaining compatibility with non-UWB devices through BLE
Solution Approach 2:
The interaction process is segmented into multiple stages: first using BLE for initial device discovery and basic spatial information acquisition, then using UWB for precise pointing direction determination. This segmentation allows the system to use UWB's advanced capabilities selectively rather than requiring all devices to support UWB from the outset
2Ease of manufacture
If different interaction methods are used for UWB and non-UWB devices, then each device type can be optimized, but user experience deteriorates due to inconsistency
Solution Approach 1:
The patent implements a universal interaction framework where the UE uses the same pointing gesture operation for both UWB and non-UWB devices. The system automatically selects the appropriate technology stack (BLE alone or BLE+UWB) based on device capabilities, but presents a consistent user interface and interaction model. This allows the UE to maintain optimized interaction for each device type while providing uniform user experience across all scenarios
3Measurement precision
If UWB spatial information is used to determine pointing direction, then interaction accuracy is improved, but system complexity increases due to coordinate system transformation requirements
Solution Approach 1:
The patent performs preliminary coordinate system transformation by having the target device report its spatial position in the UE's coordinate system through BLE connection. This pre-establishment of coordinate relationships eliminates the need for complex real-time transformations during the pointing operation, as the UE already has the target's position information in its own reference frame from the initial BLE interaction
Data Source
AI summary
A method and apparatus for determining a device pointed to by a UE is provided. The method includes determining UE pointing information based on spatial information of UWB devices; and determining a target non-UWB device pointed to by the UE based on the UE pointing information and spatial information of at least one non-UWB device. The disclosure determines a target non-UWB device pointed to by the UE in the UWB environment based on spatial perception capability of UWB and improve the user experience of UWB pointing operations.