Adaptive Signal Bandwidth Identification for Multi-Standard Radios
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Solution Overview
Problem
Existing wireless communication devices lack adaptive identification capabilities between different bandwidth standards, particularly between 6.25 kHz and 12.5 kHz, and cannot support multiple standards, limiting inter-communication and requiring manual intervention for mode switching.
Innovation Solution
A method and system for adaptively identifying signal bandwidth by performing intermediate frequency digitization and using multiple signal identification templates to automatically identify and switch between 6.25 kHz and 12.5 kHz standards, enabling seamless communication between devices with different bandwidths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless communication device supports only one bandwidth standard (12.5 kHz or 6.25 kHz), then the device structure is simple and reliable, but the device cannot communicate with devices using different bandwidth standards
Solution Approach 1:
The patent implements multi-functionality by enabling a single wireless communication device to support multiple bandwidth standards (12.5 kHz and 6.25 kHz) through adaptive identification. The device uses multiple signal identification templates corresponding to different bandwidth standards, allowing it to automatically detect and switch between standards based on the received signal, thus achieving universal compatibility without requiring separate devices for each standard.
Solution Approach 2:
The patent applies dynamics by implementing adaptive bandwidth identification where the device dynamically switches between different bandwidth standards based on real-time signal detection. The system uses multiple identification templates that can be activated or deactivated depending on the detected signal characteristics, allowing the device to adjust its operating parameters dynamically rather than being fixed to a single standard.
2Adaptability or versatility
If adaptive identification between different bandwidths is not supported, then the identification process is simple, but inter-communication between 6.25 kHz and 12.5 kHz standards cannot be realized
Solution Approach 1:
The patent applies segmentation by dividing the identification process into separate templates for different bandwidth standards. Each template is designed to detect specific characteristics of signals at particular bandwidths (12.5 kHz or 6.25 kHz). The system sequentially or selectively applies these segmented templates to identify the correct bandwidth standard, enabling precise differentiation between standards while maintaining a manageable identification process.
Solution Approach 2:
The patent uses an intermediary approach by introducing multiple signal identification templates as mediators between the received signal and the bandwidth determination. These templates act as intermediate processing layers that transform the raw signal into identifiable bandwidth information. The templates serve as a bridge, allowing the device to indirectly determine bandwidth characteristics without direct complex analysis of the signal.
3Ease of operation
If manual intervention is required for switching between receiving modes with different modulation bandwidths, then the system is simpler to implement, but the operation becomes complex and time-consuming
Solution Approach 1:
The patent implements self-service by enabling the device to automatically perform bandwidth identification and mode switching without external intervention. The system uses multiple identification templates to autonomously detect the incoming signal's bandwidth standard and automatically switch to the appropriate receiving mode. This self-service capability eliminates the need for manual configuration, allowing the device to adapt to different bandwidth standards independently based on the detected signal characteristics.
Solution Approach 2:
The patent applies feedback by incorporating a detection and identification mechanism that continuously monitors the received signal and provides feedback about the bandwidth standard. Based on this feedback, the system automatically adjusts its operating parameters and switches to the appropriate receiving mode. The feedback loop ensures that the device remains synchronized with the incoming signal's characteristics, enabling automatic and accurate bandwidth adaptation.
Data Source
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.