VDSL2 Transceiver Profile Selection for Channel Adaptation
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Solution Overview
Problem
The complexity of configuring VDSL2 transceivers for different deployment contexts and varying communication channel conditions leads to inefficiencies in selecting optimal communication parameters, affecting data transmission rates and reliability.
Innovation Solution
A method and system that utilize decision units within transceivers to select and adjust communication profiles based on channel-specific information, such as signal-to-noise ratio and physical length, employing DMT techniques and profile subsets defined by the VDSL2 standard to optimize data transmission parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If VDSL2 transceivers support a wide range of capabilities and settings to handle varying channel conditions, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the full range of VDSL2 parameters into multiple profiles, where each profile represents a subset of parameters optimized for specific deployment scenarios. This segmentation allows transceivers to handle varying channel conditions through profile selection rather than managing all parameters individually, thus improving adaptability while reducing configuration complexity.
Solution Approach 2:
The patent implements dynamic profile selection and parameter adjustment during the initialization process. Transceivers automatically adapt communication parameters based on measured channel conditions (such as signal-to-noise ratio and attenuation), transitioning from static configuration to dynamic adaptation. This resolves the contradiction by making the system adaptable to channel variations without requiring complex manual configuration.
2Manufacturing precision
If manual configuration of communication parameters is performed to optimize transmission, then manufacturing precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent enables transceivers to automatically perform parameter optimization through self-service mechanisms. During initialization, each transceiver measures channel conditions (signal-to-noise ratio, attenuation, loop length) and autonomously selects appropriate profiles and adjusts parameters without requiring manual configuration. This achieves manufacturing precision in parameter optimization while dramatically improving ease of operation.
Solution Approach 2:
The patent performs parameter optimization as a preliminary action during the initialization phase before actual data transmission begins. By pre-configuring optimal parameters based on initial channel measurements, the system eliminates the need for manual configuration during operation, thus achieving both parameter optimization and ease of operation.
3Measurement precision
If initialization process collects detailed channel information to optimize parameters, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent implements partial measurement action by collecting only the most critical channel parameters (signal-to-noise ratio, attenuation, loop length) needed for profile selection, rather than performing exhaustive channel characterization. This partial measurement approach achieves sufficient measurement precision for optimal parameter selection while significantly reducing initialization time compared to complete channel analysis.
Solution Approach 2:
The initialization process is segmented into phases, with channel information collection performed only to the extent necessary for profile selection. By dividing the initialization into essential measurements versus optional detailed analysis, the patent achieves adequate measurement precision for parameter optimization while minimizing time loss during setup.
Data Source
AI summary
Methods and systems for transmitting and receiving data over a communication channel between two transceiver stations are disclosed. A first decision is made during an initialization process, wherein the first decision comprises selecting a first subset of communication parameters. A second decision is made during the initialization process wherein the second decision comprises deciding whether one or more of the communication parameters of the first subset are to be changed depending on information collected about the communication channel.