UWB Ranging Coordination via Processor Mediation
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Solution Overview
Problem
Existing electronic devices using Ultra-Wide Band (UWB) and Radio Access Technology (RAT) for location-based services face interference and performance degradation due to independent UWB signal exchanges, especially when multiple devices perform ranging operations simultaneously.
Innovation Solution
A first electronic device and a second electronic device, each equipped with UWB and RAT communication circuits, coordinate to exchange UWB signals with external devices, with the processor managing signal transmission and reception to prevent collisions and optimize performance by designating one device to perform UWB ranging based on security key configuration and battery status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple electronic devices perform UWB ranging operations simultaneously, then location-based services can be provided to multiple devices, but signal interference occurs and ranging accuracy degrades
Solution Approach 1:
The system performs preliminary actions by having the first electronic device identify external devices and determine ranging parameters before actual UWB ranging occurs. The processor identifies a second electronic device that should perform ranging based on security key configuration and battery status, then designates this device in advance to execute the ranging operation, preventing signal collisions before they occur
Solution Approach 2:
The first electronic device acts as an intermediary or coordinator between multiple second electronic devices and external devices. It receives UWB signals from external devices, determines which second device should perform ranging based on security keys and battery status, and directs the ranging operation to the appropriate device, thereby managing multiple devices without causing interference
2Productivity
If multiple electronic devices independently exchange UWB signals with external devices, then each device can provide location-based services, but power consumption increases
Solution Approach 1:
The system implements self-service by having the first electronic device automatically monitor battery status of second electronic devices and autonomously determine which device should perform UWB ranging based on security key configuration and battery levels. This eliminates the need for manual configuration and prevents devices with low battery from consuming excessive power, as the system self-regulates power distribution across devices
Solution Approach 2:
The system dynamically changes operational parameters by monitoring battery status and security key configuration, then adjusting which device performs ranging operations. When a device's battery status changes or security key configuration is updated, the system re-evaluates and reassigns ranging responsibilities, optimizing power consumption based on current device states
3Productivity
If multiple electronic devices independently exchange UWB signals with external devices, then each device can provide location-based services, but signal interference and performance degradation occur
Solution Approach 1:
The system performs preliminary identification and assignment of ranging responsibilities before actual UWB signal exchange occurs. The first electronic device identifies external devices, checks security key configurations, determines battery status, and designates the appropriate second device to perform ranging in advance, ensuring that only one device exchanges signals with external devices at any given time and preventing interference
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring battery status and security key configuration of second electronic devices. Based on this feedback, the first electronic device dynamically adjusts which device performs ranging operations, ensuring optimal performance and preventing interference by adapting to changing device states
Data Source
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AI summary
According to an embodiment, a first electronic device includes a first communication circuit supporting an UWB communication, a second communication circuit supporting a RAT communication distinct from the UWB communication, a memory, and a processor. The processor is configured to transmit a first signal for controlling a second electronic device to identify at least a portion of a plurality of UWB signals between the first electronic device and at least one of external electronic device, to the second electronic device. The processor is configured to exchange the plurality of UWB signals with the at least one external electronic device. The processor is configured to receive a second signal for requesting to exchange a plurality of other UWB signals with the at least one external electronic device from the second electronic device. The processor is configured to cease, based on the second signal, exchanging of the plurality of UWB signals.