IR-UWB Frame Structure for Concurrent Positioning and Radar Sensing
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Solution Overview
Problem
Existing IR-UWB devices face challenges in simultaneously achieving high positioning accuracy and radar sensing accuracy due to long component switching durations, leading to missed data frame transmissions and reduced accuracy.
Innovation Solution
A communication method and frame structure design that allows concurrent transmission of positioning and radar frames by embedding radar frames within positioning frames, maintaining compatibility with the 802.15.4z protocol, ensuring accurate and simultaneous execution of both functions without switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If component switching is performed during function switching between positioning and radar sensing, then the device can perform both functions, but the switching duration is long and causes missed transmission of data frames
Solution Approach 1:
The patent merges the positioning function and radar sensing function into a single integrated device with shared components (transmitter, receiver, antenna). This eliminates the need for component switching between functions, resolving the contradiction by allowing both functions to be performed simultaneously without time loss from switching.
Solution Approach 2:
The device is designed with universal components that can serve multiple functions. The transmitter can transmit both positioning data frames and radar frames, and the receiver can receive both types of frames. This multi-functionality allows the device to perform positioning and radar sensing without component switching, eliminating the time loss issue.
2Adaptability or versatility
If component switching is performed during function switching, then the device can handle both positioning and radar sensing, but missed transmission of data frames occurs affecting accuracy
Solution Approach 1:
By merging both functions into one integrated system with shared components, the patent ensures continuous operation without switching interruptions. The transmitter and receiver remain active throughout, preventing missed data frame transmissions and maintaining high reliability for both positioning and radar sensing operations.
Solution Approach 2:
The device maintains continuous transmission and reception operations for both positioning and radar sensing simultaneously. By eliminating component switching, the useful action continues uninterrupted, ensuring no data frames are missed and maintaining high transmission reliability for both functions.
3Measurement precision
If separate devices are used for positioning and radar sensing, then each function can be optimized, but integration into a single device with both functions is needed for smart home and smart factory scenarios
Solution Approach 1:
The patent merges positioning and radar sensing functions into a single device with shared components while maintaining independent processing paths. This integration reduces device complexity compared to using separate devices, while the independent processing ensures each function maintains its optimization and precision.
Solution Approach 2:
The device is designed with universal components that can handle both positioning and radar sensing operations. The transmitter, receiver, and antenna serve both functions, simplifying the overall system architecture while maintaining the precision needed for both applications through separate processing logic.
Data Source
AI summary
Embodiments of this application provide a communication method and an electronic device. In the method, the electronic device may determine whether a first data frame and a second data frame need to be transmitted concurrently, where the first data frame is used by the electronic device to perform positioning, and the second data frame is used by the electronic device to perform radar sensing; and when the first data frame and the second data frame need to be transmitted concurrently, transmits a third data frame, where the third data frame includes content of the first data frame and content of the second data frame. In embodiments of this application, a frame structure in which a radar frame and a positioning frame coexist is designed.