Optical Radio Converter Path Controller for Signal Collision
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Solution Overview
Problem
In communication network systems that connect multiple sites, the collision of optical fiber radio signals due to simultaneous transmission at the same wavelength or time division multiplexing leads to communication inefficiencies and signal quality degradation, requiring complex configurations and management to avoid interference.
Innovation Solution
Implementing a path controller with optical switches or electrical switches to control the conduction routes of optical fiber transmission lines, allowing for selective transmission and reception of optical fiber radio signals between optical-radio converters, and using cancel circuits to suppress wraparound signals, enabling simultaneous communication between multiple radio terminals without a complex relay network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time division multiplexing is used to avoid optical fiber radio signal collision, then signal interference is reduced, but communication efficiency and productivity decrease due to sequential transmission
Solution Approach 1:
The patent segments the optical fiber transmission into dedicated point-to-point paths for each radio terminal pair, rather than using shared time-division multiplexed paths. Each optical radio converter has its own dedicated optical path controlled by path controllers, allowing simultaneous transmissions without interference while maintaining high communication efficiency.
2Productivity
If wavelength division multiplexing is used to avoid optical fiber radio signal collision, then communication efficiency is maintained, but device complexity and management difficulty increase
Solution Approach 1:
The patent introduces path controllers as intermediary devices that manage optical path routing between optical radio converters. These path controllers dynamically establish dedicated optical paths without requiring complex wavelength management or multiplexing equipment, simplifying the overall system configuration while maintaining communication efficiency.
3Length of stationary object
If a relay network with multiple network switches and routers is used to connect radio terminals, then communication distance is extended, but network configuration complexity increases
Solution Approach 1:
The patent extracts the core functionality needed for long-distance communication (optical fiber transmission) and removes unnecessary network infrastructure elements such as multiple switches and routers. By using direct optical paths between optical radio converters, the system achieves extended communication distance with minimal network configuration complexity.
4Device complexity
If a small number of radio relays are used to simplify configuration, then device complexity is reduced, but communication distance and adaptability are limited
Solution Approach 1:
The patent makes each optical radio converter a universal node that can communicate with any other converter in the network through dynamically controlled optical paths. This multi-functional capability allows the system to adapt to various communication distance requirements without adding more specialized relay devices, maintaining simple configuration while achieving high versatility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for efficient, simultaneous communication between multiple radio terminals by controlling signal paths and suppressing unnecessary signals, thereby improving communication efficiency and reducing signal quality degradation, and enabling full-duplex communication while maintaining low latency and flexibility.
Implementation Method 1
an optical-radio conversion unit that converts a radio signal received by the antenna unit into an optical fiber radio signal to output the optical fiber radio signal to the optical fiber transmission line, and converts an optical fiber radio signal transmitted in the optical fiber transmission line to a radio signal
Implementation Method 2
as means for easily transmitting a radio signal (high-frequency signal) over a long distance, there have been used the RoF (radio over fiber) technique for transmitting/receiving radio signals through an optical fiber transmission line with low loss
Data Source
AI summary
The present disclosure aims to make it possible to simultaneously establish communication between many freely-selected radio terminals without using a complex relay network or a plurality of radio relays. The present disclosure is a communication network system including: a plurality of optical-radio converters 521-1 to 521-n that convert a radio signal and an optical fiber radio signal into each other; and a path controller that is connected to the plurality of optical-radio converters 521-1 to 521-n through optical fiber transmission lines 531-1 to 531-n, receives input of an optical fiber radio signal transmitted from any optical-radio converter of the plurality of optical-radio converters 521-1 to 521-n from the optical fiber transmission line connected to the optical-radio converter, and outputs the optical fiber radio signal to the optical fiber transmission line connected to a set optical-radio converter of the plurality of optical-radio converters 521-1 to 521-n.