Adaptive Signal Bandwidth Identification for Multi-Standard Wireless Devices
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Solution Overview
Problem
Existing wireless communication devices lack the ability to adaptively identify and communicate between different bandwidth standards, specifically failing to support inter-communication between 6.25kHz and 12.5kHz standards with consistent air interface protocols and limiting devices to support only one standard.
Innovation Solution
A method and system for adaptively identifying signal bandwidth by using multiple signal identification templates to differentiate synchronization frame information, allowing devices to automatically switch between receiving or transmitting modes for end-to-end communication, supporting multiple standards without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless communication device supports only one bandwidth standard, then the device complexity is reduced, but the adaptability to different bandwidth standards is limited
Solution Approach 1:
The patent implements multi-functionality by enabling a single wireless communication device to support multiple bandwidth standards (6.25kHz and 12.5kHz) through a unified identification mechanism. The device uses multiple signal identification templates corresponding to different bandwidth standards to detect and adapt to various standards, allowing one device to perform multiple bandwidth-specific functions without requiring separate hardware for each standard.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the signal identification parameters (templates) based on the detected bandwidth standard. The device changes its operational parameters including the identification template selection, synchronization frame detection parameters, and communication protocol parameters according to the identified bandwidth standard, enabling adaptive operation across different standards without permanent hardware reconfiguration.
2Ease of operation
If manual intervention is required for bandwidth standard selection, then the device operation becomes more controllable, but the ease of operation is reduced
Solution Approach 1:
The patent implements self-service by enabling the wireless communication device to automatically identify the bandwidth standard of the received signal and switch to the appropriate communication mode without user intervention. The device autonomously performs signal detection, bandwidth standard identification, and mode switching operations, making the system self-configuring and eliminating the need for manual bandwidth standard selection by the operator.
Solution Approach 2:
The patent uses feedback mechanisms where the device continuously monitors the received signal characteristics, compares them against multiple identification templates, and automatically adjusts its operational mode based on the identification results. This closed-loop feedback process enables automatic adaptation to different bandwidth standards, with the system using the detected signal properties to feedback-controlled adjustments of its communication parameters.
3Adaptability or versatility
If inter-communication between different bandwidth standards is not supported, then the communication reliability within the same standard is maintained, but the versatility of communication is limited
Solution Approach 1:
The patent applies segmentation by separating the identification process into distinct stages: signal reception, template matching, bandwidth standard identification, and mode selection. This segmented approach allows the device to systematically handle different bandwidth standards through a structured identification流程, maintaining reliability within each standard while enabling transitions between standards through clearly defined identification and switching mechanisms.
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AI summary
The present invention discloses a method and system for adaptively identifying signal bandwidth. The method includes: performing digitizing intermediate frequency processing to the received signal and outputting in-phase/quadrature (I/Q) signals; identifying signal bandwidth of the I/Q signals according to at least two signal identification templates and outputting the synchronized signal flows after a successful identification. A system for adaptively identifying signal bandwidth is also disclosed. The present invention can be compatible with at least two bandwidth modes, and the software can automatically perform identification and switch of the modulation bandwidth, when manual invention is not necessary and the operation is simple.