Shared-Antenna Wireless Module for Multi-Protocol Interference Control
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Solution Overview
Problem
Existing wireless communication systems require separate chips for different communication types (e.g., Wi-Fi, Bluetooth, Zigbee), leading to decreased productivity, increased material costs, and interference due to overlapping frequency bands.
Innovation Solution
A single wireless communication module with a shared antenna and a single controller (SOC control chip) manages multiple communication types (Wi-Fi, Bluetooth, Zigbee) by controlling the antenna and signal processor to minimize interference and optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate chips are used for each wireless communication type (Wi-Fi, Bluetooth, Zigbee), then each communication type can operate independently, but productivity decreases and material costs increase
Solution Approach 1:
The patent combines multiple wireless communication types (Wi-Fi, Bluetooth, Zigbee) into a single integrated chip, eliminating the need for separate chips for each communication protocol. This integration maintains independent operation capability through internal resource allocation while significantly improving productivity by reducing the number of components that need to be manufactured, assembled, and tested.
Solution Approach 2:
The integrated chip is designed to perform multiple wireless communication functions simultaneously or sequentially. The chip includes multiple antennas and communication modules that can operate independently, allowing a single chip to replace multiple specialized chips while maintaining the reliability of each communication type.
2Productivity
If multiple chips are integrated into a single chip, then productivity improves and costs decrease, but design changes are required and interference occurs due to antenna proximity
Solution Approach 1:
The integrated chip is divided into separate communication modules (Wi-Fi module, Bluetooth module, Zigbee module), each with its own antenna and processing unit. This segmentation allows each module to be designed and optimized independently, reducing the overall design complexity while maintaining the benefits of integration. The modular architecture enables parallel development and testing of different communication protocols.
Solution Approach 2:
The patent introduces a central controller or resource manager that coordinates between different communication modules and antennas. This intermediary component manages signal routing, frequency allocation, and interference mitigation, allowing multiple communication types to coexist on a single chip without excessive design complexity.
3Area of stationary object
If multiple communication antennas are placed in close proximity, then device size decreases, but signal interference increases due to overlapping frequency bands
Solution Approach 1:
The patent implements dynamic frequency selection and time-division multiplexing for the antennas. The system can dynamically switch between different frequency bands and allocate antenna usage based on real-time communication requirements. This dynamic approach allows antennas to be placed in close proximity while minimizing interference through intelligent resource allocation and adaptive frequency management.
Solution Approach 2:
The communication modules employ parameter changes such as frequency hopping, spread spectrum techniques, and adaptive modulation to mitigate interference. By changing operational parameters like frequency, power level, and modulation scheme based on detected interference conditions, the system maintains reliable communication despite the close proximity of multiple antennas operating in overlapping frequency bands.
Data Source
AI summary
An electronic device may include at least one antenna configured to transmit or receive wireless communication signals of different communication types, and a processor configured to control the at least one antenna to transmit or receive the wireless communication signals of different communication types. The wireless communication signals may include at least one of a Wi-Fi signal, a Bluetooth signal, or a Zigbee signal.