Low-Latency Device Control Through Priority Traffic Queues
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Solution Overview
Problem
Latency issues in internet connectivity, particularly in low latency applications such as video conferencing, cloud gaming, and augmented reality, result in poor user experiences and increased vulnerability to cyberattacks, due to high latency in ISP networks and cloud infrastructure.
Innovation Solution
Implementing a system with precision time protocol (PTP) synchronization for timestamping and latency monitoring across nodes, using server extensions in ISP-provided modems or routers to manage latency, and employing queue management for low latency traffic, allowing multiple parties to collaborate for network optimization and infrastructure upgrades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If larger burst data communications are used to support internet speeds, then bandwidth capacity is improved, but communication latency increases due to larger buffers at each node
Solution Approach 1:
The patent segments network traffic into different priority queues, separating time-sensitive low latency traffic from other traffic types. This allows the network to handle high bandwidth requirements while providing dedicated low-latency paths for critical applications, effectively resolving the contradiction between large buffer capacity and low latency communication.
Solution Approach 2:
The system dynamically changes network parameters such as queue priority levels, buffer allocation sizes, and scheduling policies based on traffic conditions. By adjusting these parameters, the network can optimize for either high bandwidth utilization or low latency performance depending on current demands, resolving the fundamental trade-off between the two.
2Device complexity
If traditional network monitoring methods are used, then system complexity is kept low, but real-time latency identification and control capability is insufficient
Solution Approach 1:
The patent introduces intermediary components such as latency monitoring agents deployed at various network nodes and a centralized latency management server. These intermediaries collect, aggregate, and analyze latency data without requiring complete redesign of the existing network infrastructure, thus achieving precise real-time latency measurement while controlling system complexity through modular architecture.
3Productivity
If buffers at each node are increased to support larger burst communications, then network throughput is improved, but packet transmission delay increases
Solution Approach 1:
The patent implements dynamic buffer management where buffer allocation and scheduling policies are adjusted in real-time based on traffic conditions and service level agreements. Instead of static large buffers that always increase delay, the system dynamically allocates buffer resources, providing large buffers when needed for throughput while minimizing buffer-induced delay for time-sensitive traffic, thus resolving the contradiction between throughput and transmission delay.
Data Source
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AI summary
Some embodiments relate to systems and methods for low latency control. A communication system (100) can include an application operating on the first device. The application is configured to: 1. classify a first packet provided to the first device as being for reception by a second low latency device, or 2. classify the first packet as being for use in a low latency operation. The application is configured to provide the first packet to a first queue associated with a low latency path.