Configurable Baseband Processing for Multi-Network Transceivers
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Solution Overview
Problem
Conventional wireless communication systems face limitations in efficiently communicating with multiple networks across various frequency bands, particularly in adapting transmission and reception parameters to avoid interference and optimize performance based on changing environmental conditions and device mobility.
Innovation Solution
A configurable RF transceiver system that allows for dynamic selection of antenna modes, modulation modes, and channel utilization modes, enabled by a configuration controller that adjusts parameters such as power levels, data rates, and channel settings based on real-time channel conditions and communication requirements, optimizing communication efficiency across multiple networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the transmitter operates at a fixed power level regardless of distance, then the transmission is simple to implement, but the energy efficiency deteriorates when the device is close to the target
Solution Approach 1:
The transmitter dynamically adjusts its power level based on real-time channel conditions and distance to the target device. The configuration controller modifies transmission parameters including power level, data rate, and modulation scheme according to the communication environment, transforming a static system into an adaptive one that optimizes energy efficiency while maintaining reliable communication.
Solution Approach 2:
The system changes multiple transmission parameters simultaneously including power level, data rate, and modulation scheme to adapt to varying channel conditions. This multi-parameter adjustment allows the transmitter to optimize energy consumption by using lower power levels when close to the target while maintaining communication quality through appropriate parameter selection.
2Reliability
If the receiver uses a single antenna, then the device complexity is reduced, but the communication reliability deteriorates in mobile environments with changing channel conditions
Solution Approach 1:
The receiver is designed to operate with either a single antenna or multiple antennas depending on the communication requirements. The configuration controller enables the receiver to adapt its antenna usage based on channel conditions, allowing the system to achieve high reliability when multiple antennas are available while maintaining simplicity when operating with a single antenna, thus providing universal functionality across different scenarios.
Solution Approach 2:
The receiver dynamically configures its antenna operation mode based on real-time channel conditions and communication requirements. The system can switch between single-antenna and multi-antenna modes, and adjust parameters such as diversity combining techniques, to optimize reliability without permanently increasing device complexity.
3Adaptability or versatility
If the system supports multiple frequency bands and networks, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The configurable receiver and transmitter are designed with universal functionality to operate across multiple frequency bands and wireless networks including Wi-Fi, Bluetooth, and cellular networks. The configuration controller automatically selects and configures appropriate parameters for the target network and frequency band, enabling the system to support multiple networks without requiring separate dedicated hardware for each network type.
Solution Approach 2:
The system adapts to different networks and frequency bands by dynamically changing operational parameters including center frequency, bandwidth, modulation schemes, and power levels. The configuration controller manages these parameter changes based on the detected network environment, allowing the transceiver to maintain compatibility across multiple networks while minimizing the perceived complexity for the user.
4Reliability
If the transmitter increases power level to compensate for distance, then the communication reliability improves, but the energy consumption increases
Solution Approach 1:
The system optimizes the trade-off between power consumption and reception quality by dynamically adjusting the power level based on the actual distance and channel conditions to the target device. When the device is close to the target, the configuration controller selects lower power levels and appropriate data rates that maintain reliable communication while minimizing energy consumption. When distance increases, the system gradually increases power level to maintain reception quality, avoiding unnecessary high power consumption during close-range communication.
Data Source
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AI summary
A configurable transceiver includes an RF receiver section that generates at least one downconverted signal from a received RF signal. A receiver processing module processes at least one downconverted signal in a plurality of receiver stages to produce a stream of inbound data, wherein the receiver processing module is configurable in response to a control signal to selectively bypass at least one of the plurality of receiver processing stages. A transmitter processing module processes outbound data in a plurality of transmitter stages to produce at least one baseband signal, wherein the receiver processing module is configurable in response to the control signal to selectively bypass at least one of the plurality of transmitter processing stages. An RF transmitter section generates at least one RF signal from the at least one baseband signal.