Wearable Device Location Acquisition via Short-Range Data Exchange
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Solution Overview
Problem
Wearable devices without a communication module, such as a cellular module, face challenges in acquiring location information efficiently and updating additional data, leading to prolonged location acquisition times and high resource consumption due to reliance on GNSS modules without Assisted GPS (AGPS) and excessive bandwidth usage in short-range communication.
Innovation Solution
Incorporating a communication module with both a first and second module in wearable devices, allowing them to request and receive additional data from neighboring electronic devices for location updates, validate the data, and determine the present location using the received information, thereby reducing GPS acquisition time and resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wearable device without a communication module uses a GNSS module without AGPS information to acquire location, then the device can obtain location information, but the time to acquire location is prolonged and additional data cannot be updated
Solution Approach 1:
The patent applies preliminary action by having external electronic devices pre-acquire and store additional data (such as satellite ephemeris, clock correction, and ionospheric delay information) that the wearable device needs for location acquisition. When the wearable device requests location data, it receives this pre-prepared additional data from external devices, significantly reducing the time to first fix without requiring the wearable device to acquire data directly from satellites or network infrastructure.
2Loss of information
If a wearable device receives data from neighboring electronic devices through short-range communication, then the device can acquire additional location data, but a large amount of resources (bandwidth) is consumed
Solution Approach 1:
The patent applies the extraction principle by having external electronic devices extract and provide only the specific additional data elements that the wearable device needs for location acquisition (such as satellite ephemeris, clock correction parameters, and ionospheric delay information). This selective data transmission through short-range communication minimizes bandwidth consumption while ensuring the wearable device receives all necessary information for accurate and timely location determination.
3Measurement precision
If a wearable device without a communication module acquires location information, then the device can determine its position, but additional data for acquiring the location cannot be updated
Solution Approach 1:
The patent applies the intermediary principle by using external electronic devices as mediators that acquire and maintain updated additional data from network infrastructure or satellite systems. These external devices act as intermediaries between the location satellite system and the wearable device, storing and transmitting updated additional data (ephemeris, clock correction, ionospheric delay) to the wearable device through short-range communication, thereby enabling continuous data updates without requiring the wearable device to have direct communication module access.
Data Source
AI summary
An electronic device and method are disclosed herein. The electronic device includes a communication module, a memory and at least one processor, which implements the method, including responsive to detecting a request to update additional data corresponding to detecting a present location, transmitting a request to update the additional data to at least one external electronic device in communicable range of the communication module, receiving the additional data in response to the transmitted request via the first module of the communication module, detecting a validity of the received additional data, and detecting the present location via the second module of the communication module based at least partially on the additional data if the additional data is detected to be available.