Communication Network Latency Control With Predictive Rate Adaptation
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Solution Overview
Problem
Existing approaches for latency control in wireless communication scenarios do not adequately manage latency variations, particularly for services with sensitive relationships between latency requirements and internal network performance, leading to inefficient resource allocation and user experience degradation.
Innovation Solution
A method and apparatus for identifying latency-sensitive services with bounded deviations in latency requirements, predicting upcoming throughput reductions, and providing feedback indications to rate adaptors for proactive rate adjustments, using algorithms like L4S with ECN bits to manage latency variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing latency control approaches are applied, then basic latency management is achieved, but latency variations are not adequately managed leading to performance degradation
Solution Approach 1:
The system performs preliminary actions by predicting upcoming throughput reductions before they actually occur. The prediction module analyzes current network conditions and forecasts future throughput changes, allowing the rate adaptor to proactively adjust transmission rates before latency spikes happen, thereby improving latency management performance through advance preparation
Solution Approach 2:
The patent implements a feedback mechanism where the prediction module continuously monitors network throughput and provides feedback to the rate adaptor. This closed-loop system uses real-time throughput information to dynamically adjust transmission rates, enabling adaptive latency control that responds to actual network conditions while maintaining reliable performance
2Reliability
If proactive rate reduction is implemented, then latency spikes are reduced, but network throughput efficiency may decrease
Solution Approach 1:
The system employs dynamic rate adaptation where the transmission rate is continuously adjusted based on predicted throughput conditions. Rather than using static rate limits, the rate adaptor dynamically modifies transmission rates in response to predicted network conditions, allowing the system to maintain high throughput when conditions permit while ensuring latency requirements are met when throughput reductions are forecasted
Solution Approach 2:
The patent changes the transmission rate parameter based on predicted network throughput conditions. By monitoring and responding to throughput parameter changes, the system adjusts its transmission rate to maintain optimal performance, balancing latency reliability with network throughput efficiency through parameter-based adaptation
Data Source
AI summary
A method for accommodation of latency variation in a communication network is disclosed. The method comprises identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, predicting an upcoming reduction of communication network throughput for the user device, and providing a rate adaptor associated with the service with a feedback indication in response to predicting the reduction of communication network throughput, wherein the feedback indication is for rate reduction of the service.In some embodiments, the prediction and provision are performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network.