Versatile RF Front-End for Multi-Network Gateways
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Solution Overview
Problem
Traditional gateway devices are unable to support diverse client applications in home and business networks due to their limited ability to interface with various devices using different communication standards, protocols, and frequencies, such as 802.11 wireless networks and wired networks like twisted pair or power line communication.
Innovation Solution
An access point with multiple front-end circuits and local oscillators that can be selectively coupled to support multiple channels, frequencies, and networks, allowing for flexible and dynamic configuration to optimize data traffic across various client applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional gateway devices are used, then device simplicity is maintained, but the ability to support diverse client applications and communication standards is limited
Solution Approach 1:
The gateway device is designed with multiple front-end circuits that can be configured to support different communication standards and protocols (802.11 wireless, twisted pair wired, cable, power line communication). Each front-end circuit can be independently configured to handle various client applications, making the gateway universal in its ability to interface with diverse devices while maintaining a single device architecture
Solution Approach 2:
The gateway employs dynamic configuration capabilities where front-end circuits can be selectively enabled or disabled based on the specific client applications and communication standards required. This allows the gateway to adapt its functionality dynamically rather than requiring static hardware for each possible standard
2Adaptability or versatility
If multiple dedicated interfaces are added to support all client applications, then adaptability improves, but device complexity increases
Solution Approach 1:
Multiple front-end circuits share common MAC circuitry and local oscillator resources. This universal architecture allows the same hardware blocks to serve multiple communication standards through configuration rather than requiring separate dedicated interfaces for each standard, thereby improving interface compatibility without proportionally increasing device complexity
Solution Approach 2:
The patent combines multiple front-end circuits with shared MAC (Media Access Control) circuitry and common local oscillator (LO) resources. By merging these functional blocks, the system achieves support for multiple communication standards while reducing the total number of independent components compared to having completely separate interfaces for each standard
3Adaptability or versatility
If fixed frequency operation is used, then circuit simplicity is maintained, but the ability to service multiple channels and networks is limited
Solution Approach 1:
The gateway uses locally oscillators (LOs) that can be selectively coupled to different front-end circuits based on the required frequency and network. This dynamic coupling allows the same oscillator resources to serve multiple frequency ranges and communication standards, providing frequency flexibility without requiring dedicated oscillators for each frequency band
Solution Approach 2:
The system changes operational parameters (frequency, communication standard, protocol) by selectively coupling different front-end circuits to different MAC circuitry and local oscillators. This parameter-based configuration approach allows the gateway to adapt to multiple channels and networks by changing which components are activated rather than requiring physical hardware changes
Data Source
AI summary
Embodiments related to analog front-ends for wireless and wired are described and depicted.