Transceiver Crosstalk Control via Location Indicators
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Solution Overview
Problem
Crosstalk interference from intermediate terminal transceivers significantly affects signal-to-noise ratios of central office transceivers due to their closer proximity to customer premises, leading to higher power levels of crosstalk that degrade communication signals.
Innovation Solution
A system and method that utilize a location indicator to adjust the operational settings of transceivers, specifically reducing signal power levels and bandwidth to mitigate crosstalk interference by determining whether the transceiver is located at a central office or an intermediate terminal, ensuring spectral compatibility with central office signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If transceivers are deployed at intermediate terminals closer to customer premises, then communication distance is reduced and service coverage is improved, but crosstalk interference to central office transceivers increases significantly
Solution Approach 1:
The patent applies local quality by differentiating the operational characteristics of transceivers based on their location. Intermediate terminal transceivers use different power levels and bandwidth settings compared to central office transceivers. The system identifies transceiver location through location indicators and configures appropriate operational parameters for each location type, allowing intermediate terminals to operate closer to customers without causing excessive crosstalk to central offices.
Solution Approach 2:
The patent implements parameter changes by adjusting key operational parameters of transceivers based on their location. Specifically, intermediate terminal transceivers operate at reduced power levels and with modified bandwidth settings compared to central office transceivers. These parameter adjustments are made dynamically based on location indicators, enabling the system to optimize performance while minimizing harmful crosstalk effects.
2Power
If intermediate terminal transceivers operate at higher power levels to compensate for shorter distance, then signal strength is improved, but crosstalk power levels increase and degrade central office signal quality
Solution Approach 1:
The system applies local quality by tailoring power levels to specific locations. Intermediate terminal transceivers use different power settings than central office transceivers, accounting for their respective distances to customer premises. This localized power management allows each transceiver type to operate optimally without causing excessive interference to others.
Solution Approach 2:
The patent employs feedback mechanisms where transceivers detect their location through location indicators and automatically adjust their operational parameters accordingly. The system monitors signal conditions and crosstalk levels, using this feedback to optimize power levels and maintain acceptable signal-to-noise ratios for all transceivers in the network.
3Speed
If transceiver bandwidth is increased to improve data rate, then communication speed is improved, but spectral compatibility with central office signals deteriorates due to increased crosstalk
Solution Approach 1:
The patent applies local quality by configuring different bandwidth parameters for transceivers at different locations. Intermediate terminal transceivers use adjusted bandwidth settings that balance data rate requirements with crosstalk mitigation. This localized parameter optimization ensures that each transceiver operates at appropriate bandwidth to maintain spectral compatibility and acceptable signal quality.
Solution Approach 2:
The system implements parameter changes by dynamically adjusting bandwidth settings based on transceiver location and operational conditions. Intermediate terminals modify their bandwidth parameters to maintain spectral compatibility with central office signals while still achieving acceptable data rates. These parameter adjustments are made based on location indicators and real-time signal conditions.
Data Source
AI summary
A system for controlling transceivers based on a location of the transceivers, as indicated by a location indicator, helps to reduce crosstalk interference in signals transmitted from central offices. The system utilizes a location indicator and logic. The location indicator is communicatively coupled to each of a plurality of transceivers and is indicative of whether the plurality of transceivers are located at an intermediate terminal or a central office. The logic is configured to control a physical layer of each of the transceivers based on the location indicator.