Universal Radio Card for Multi-Band Wireless Devices
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Solution Overview
Problem
Current wireless devices are limited by different wireless standards and frequency bands, requiring specific hardware and software for each region, making them inflexible for use across various regions.
Innovation Solution
A multi-band wireless system with a detachable radio card that includes a base band processor, RF transceiver, multi-band power amplifier module, and radio controller, allowing the device to operate in multiple frequency bands and wireless standards, and is compatible with formats like MicroSD and SIM cards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless device is designed to operate under a specific wireless standard adopted in a specific region, then the device can achieve optimal performance and compatibility in that region, but the device cannot be used across all regions of the world
Solution Approach 1:
The wireless communication functionality is segmented into a separate detachable radio card that can be independently attached to or removed from the host device. This radio card contains all the frequency-selective surface components and RF hardware necessary for different wireless standards, allowing the host device to maintain simplicity while gaining global compatibility through card attachment and detachment.
Solution Approach 2:
The detachable radio card is designed with universal functionality to support multiple wireless standards (e.g., GSM, WCDMA, CDMA2000, WiMAX, LTE, WiFi) and frequency bands through frequency-selective surfaces. A single radio card can serve multiple regions and communication protocols, eliminating the need for multiple specialized devices or complex reconfiguration of the host device.
2Adaptability or versatility
If different wireless standards operate in different frequency bands and require different hardware components, then each standard can be optimized for its specific frequency band, but the device requires multiple hardware components for each standard
Solution Approach 1:
Multiple frequency-selective surfaces and RF hardware components for different wireless standards are merged into a single integrated detachable radio card. This consolidation allows the host device to access multiple frequency bands and wireless standards by simply attaching the radio card, rather than incorporating separate hardware components for each standard within the host device itself.
Solution Approach 2:
The detachable radio card acts as an intermediary component between the host device and the various wireless standards. It provides the frequency-selective surfaces and RF hardware as a modular interface, allowing the host device to communicate with different wireless networks without requiring the host itself to contain all the necessary standard-specific hardware.
3Adaptability or versatility
If a wireless device includes all necessary components for multiple wireless standards, then the device can operate across different frequency bands, but the device becomes more complex and harder to manufacture
Solution Approach 1:
The manufacturing complexity is segmented by separating the frequency-selective surfaces and RF hardware into a dedicated radio card that can be manufactured independently using specialized processes, while the host device is manufactured using standard assembly processes. This allows each component to be optimized for its specific manufacturing requirements without complicating the overall production process.
Data Source
AI summary
A multi-band wireless system includes a wireless device and a detachable radio card. The wireless device includes an application processor, an electric interface, and an antenna. The detachable radio card can be mounted onto the electric interface. The detachable radio card includes a base band processor, a radio-frequency transceiver, a multi-band power amplifier module, and a radio controller.