Multi-Protocol Transceiver Using Adaptive Analog Front-End
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-speed Ethernet networks face challenges in supporting multiple transmission protocols while minimizing electronic circuitry, particularly in transitioning between different data rates such as 10BASE-T, 100BASE-T, 1000BASE-T, and 10GBASE-T, which require varying sampling and processing rates.
Innovation Solution
A method and apparatus that utilize a single analog front-end processor connected to multiple digital processors, with adaptive settings and shared clocking to support multiple transmission protocols, including over-sampling for lower data rate protocols to enhance processing and noise rejection, allowing efficient reception and transmission across different data rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate transceivers are used to support different Ethernet protocols, then protocol compatibility is improved, but device complexity and circuitry requirements increase
Solution Approach 1:
The patent combines multiple protocol transceivers into a single integrated transceiver that can handle multiple Ethernet protocols (10BASE-T, 100BASE-T, 1000BASE-T, 10GBASE-T) simultaneously. This is achieved by integrating multiple digital protocol processors and a unified analog front-end into one device, eliminating the need for separate transceiver modules for each protocol while maintaining full protocol compatibility
Solution Approach 2:
The patent creates a universal transceiver design where a single analog front-end processor can interface with multiple digital protocol processors supporting different Ethernet standards. The system uses a shared clock source and configurable sampling rates to accommodate various protocol requirements, allowing one device to perform multiple protocol functions that previously required separate dedicated transceivers
2Measurement precision
If separate analog front-ends are used for each protocol, then signal processing accuracy is improved, but device complexity increases
Solution Approach 1:
The patent employs a single universal analog front-end processor that can serve multiple digital protocol processors. The analog front-end is designed with configurable sampling rates and can be dynamically adjusted to meet the specific requirements of different Ethernet protocols (125 MHz for 10/100BASE-T, 625 MHz for 1000BASE-T, 800 MHz for 10GBASE-T), maintaining signal processing accuracy across all protocols without requiring separate analog circuits for each
3Device complexity
If fixed sampling rate is used, then circuit simplicity is improved, but adaptability to different data rates deteriorates
Solution Approach 1:
The patent implements a dynamic sampling rate system where the analog front-end processor can adjust its sampling rate based on the detected Ethernet protocol. The system automatically configures appropriate sampling rates (125 MHz, 625 MHz, or 800 MHz) depending on whether 10/100BASE-T, 1000BASE-T, or 10GBASE-T is being used, allowing a single circuit to adapt to multiple data rates without requiring multiple fixed-rate circuits
Data Source
AI summary
A method and apparatus for receiving one of a plurality of Ethernet transmission protocol signals is disclosed. Each transmission protocol signal includes a plurality of transmission signal streams. The method includes determining which of the transmission protocol signals is being received. An analog front-end processor is connected to one of a plurality of protocol digital processors based on the transmission protocol signal being received. A setting of at least one functional parameter of the analog front-end processor and/or the protocol digital processors is selected based on the transmission protocol signal being received. A sampling rate of the analog front-end processor and/or a processing rate of the protocol digital processors are selected based on the transmission protocol signal being received. The plurality of transmission signal streams of the transmission protocol signal being received by the analog front-end processor are ADC sampled based on a shared clock source.