Congestion Window Control via APN-AMBR for Wireless Throughput
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Solution Overview
Problem
Traditional wireless telecommunications systems inefficiently determine the number of data packets to send to a user agent (UA) due to arbitrary settings of congestion control parameters, leading to packet loss and throughput reduction.
Innovation Solution
Utilizing the Access Point Name-Aggregate Maximum Bit Rate (APN-AMBR) to calculate and configure the congestion window and slow start threshold, ensuring that the number of data packets sent does not exceed the available network bandwidth, thereby preventing packet loss and optimizing bandwidth utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If arbitrary settings of congestion control parameters are used, then device complexity is reduced, but network performance deteriorates due to packet loss and throughput reduction
Solution Approach 1:
The patent changes the parameters of congestion control by calculating the congestion window size and slow start threshold based on APN-AMBR and round trip time values. This transforms arbitrary parameter settings into scientifically determined values, resolving the contradiction between simplicity and performance by automating the parameter optimization process.
Solution Approach 2:
The patent implements feedback mechanisms where the system continuously monitors network conditions (throughput, packet loss, round trip time) and adjusts congestion control parameters accordingly. This closed-loop control enables the system to adapt to changing network conditions, maintaining optimal performance without manual intervention.
2Ease of operation
If arbitrary congestion window sizes are used, then ease of operation is improved, but reliability deteriorates due to packet loss from excessive data transmission
Solution Approach 1:
The patent performs preliminary calculations of the congestion window size and slow start threshold before actual data transmission begins. By pre-determining these parameters based on APN-AMBR and round trip time measurements, the system avoids packet loss from excessive transmission while eliminating the need for complex real-time adjustments during operation.
Solution Approach 2:
The patent takes preliminary anti-action by setting appropriate congestion control parameters in advance to prevent packet loss before it occurs. By calculating the maximum appropriate congestion window size based on network capacity, the system proactively avoids the harmful effect of excessive data transmission that would cause packet loss.
3Device complexity
If congestion control parameters are not optimized, then device complexity is reduced, but loss of information increases due to packet loss
Solution Approach 1:
The patent optimizes congestion control parameters by changing them from arbitrary values to scientifically calculated values based on APN-AMBR and round trip time. This parameter optimization minimizes packet loss and information loss while maintaining operational simplicity through automated calculations.
Solution Approach 2:
The patent uses feedback from network performance monitoring to continuously optimize congestion control parameters. By measuring actual network conditions and adjusting parameters accordingly, the system minimizes packet loss and information loss while adapting to changing network environments without increasing operational complexity.
Data Source
AI summary
A method for communicating in a telecommunications system is provided. The method comprises conveying a downlink bit rate and an uplink bit rate associated with an access point name to a user agent.