Ring-Topology Communication With Cache-Based Latency Reduction
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Solution Overview
Problem
Existing communication systems with a ring-shaped connection between a host controller and multiple communication devices face delays in data transmission.
Innovation Solution
A communication system with a ring-shaped configuration that includes a host controller, communication devices, and cache devices, utilizing differential serial signals and cache devices with control circuits for data insertion and extraction into containers, enabling efficient data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If data is transmitted through a ring-shaped connection between host controller and communication devices, then communication coverage is improved, but transmission delay increases
Solution Approach 1:
The cache device pre-loads data into containers before they are requested by the host controller. When data is needed, it is already prepared and can be immediately transmitted, eliminating the need to traverse the entire ring topology and reducing transmission delay while maintaining ring topology communication coverage
2Adaptability or versatility
If multiple communication devices are coupled in series in a ring shape, then system connectivity is improved, but data transmission efficiency deteriorates
Solution Approach 1:
The cache device divides data into multiple containers, each containing a segment of the required data. This allows parallel processing and transmission of different data segments, improving data transmission efficiency while maintaining the series-coupled ring structure for system connectivity
Solution Approach 2:
The cache device acts as an intermediary between the host controller and communication devices. It buffers and manages data flow, inserting and extracting data from containers as needed, thereby decoupling the transmission efficiency from the series connection structure and improving overall productivity
Data Source
AI summary
According to one embodiment, a communication system includes a host controller; communication devices; a cache device; and a path that couples the host controller and the cache device and couples the cache device and the communication devices in a ring shape, wherein the cache device includes: a first control circuit capable of data insertion and extraction into and from a frame from the host controller; a first transmission circuit transmitting a frame based on a processing result of the first control circuit to a communication device; a second control circuit capable of data insertion and extraction into and from a frame from a communication device; a second transmission circuit transmitting a frame based on a processing result by the second control circuit to the host controller.