Dual-Mode Radio Architecture for High Data Rates
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Solution Overview
Problem
Current wireless communication systems face challenges in meeting the increasing demand for higher data rates while maintaining cost-effectiveness, particularly in adhering to new standards like IEEE 802.11n, as they require efficient methods to handle varying channel environments and interference.
Innovation Solution
The implementation of a dual-mode communication system that enables both spatial multiplexing and expanded bandwidth signaling using a dual-use architecture, where the same hardware can operate in either configuration by tuning to defined or different frequencies, allowing for increased data rates without the need for additional signal separators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spatial multiplexing and expanded bandwidth signaling are implemented using separate dedicated hardware, then data rate increases, but device complexity and cost increase
Solution Approach 1:
The patent implements a dual-mode radio architecture where a single radio can operate in either spatial multiplexing mode or expanded bandwidth mode by tuning to different frequencies. The same hardware components (synthesizer, modulator, demodulator) are reused for both modes, eliminating the need for separate dedicated hardware for each mode and thereby reducing device complexity while maintaining high data rates
Solution Approach 2:
The system dynamically switches between spatial multiplexing and expanded bandwidth modes based on channel conditions and requirements. The radio can be tuned to different frequencies and reconfigured between modes, allowing flexible adaptation to varying environmental conditions while maintaining optimal performance without requiring multiple fixed hardware configurations
2Ease of manufacture
If legacy radios are reused without modification, then cost is reduced, but data rate capability is limited
Solution Approach 1:
The patent achieves higher data rates with legacy radios by changing operational parameters rather than hardware. By tuning the radio to different frequencies and switching between spatial multiplexing and expanded bandwidth modes, the system doubles the effective data rate capability of legacy radios without requiring hardware modifications, thus maintaining cost-effectiveness while improving productivity
3Productivity
If multiple transmit and receive antennas are used for spatial multiplexing, then data rate increases, but device complexity and cost increase
Solution Approach 1:
The patent merges the functionality of multiple antennas and multiple radios into a single dual-mode radio system. By combining spatial multiplexing capabilities with expanded bandwidth signaling in one radio, the system achieves the data rate benefits of multiple antennas without requiring physically separate antenna systems, thereby reducing device complexity and cost while maintaining high productivity
Data Source
AI summary
Embodiments of dual mode communication systems and methods are disclosed. On system embodiment, among others, comprises logic configured to perform spatial multiplexing and expanded bandwidth signaling to data.