Access Point Uplink Flow Control for Buffer Overflow Prevention
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Solution Overview
Problem
In wireless communications systems, uplink traffic buffering at access points can lead to buffer overflow and packet drops, causing network inefficiencies and resource waste due to undeliverable traffic.
Innovation Solution
An access point monitors uplink traffic and adjusts communication schemes to manage buffer quotas by reducing uplink traffic from stations, including techniques such as modifying transmission frequencies, error message manipulation, and redirecting traffic to different basic service sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the access point buffers uplink traffic, then traffic forwarding capability is improved, but buffer overflow and packet drops occur
Solution Approach 1:
The access point performs preliminary actions by monitoring buffer status and proactively adjusting uplink communication schemes before buffer overflow occurs. The system predicts buffer occupancy trends and takes preventive measures to maintain reliable packet delivery while preserving traffic forwarding capability.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring buffer status and using this information to dynamically adjust uplink communication parameters. The access point feeds back buffer occupancy information to stations and modifies communication schemes based on this feedback, resolving the contradiction between buffering capacity and packet delivery reliability.
2Quantity of substance
If the access point increases buffer capacity, then traffic buffering capability is improved, but network resource efficiency deteriorates
Solution Approach 1:
The system applies dynamics by making buffer capacity and communication schemes adjustable rather than fixed. The access point dynamically modifies uplink communication parameters based on real-time buffer status, allowing the system to adapt buffer utilization to actual network conditions and maintain resource efficiency while providing adequate buffering capability.
Solution Approach 2:
The access point changes communication parameters such as transmission intervals, data rates, and modulation schemes based on buffer status. By adjusting these parameters dynamically, the system optimizes the use of buffer capacity and network resources, preventing resource waste while maintaining sufficient buffering capability for traffic smoothing.
3Reliability
If the access point monitors and controls uplink traffic, then buffer overflow is reduced, but communication scheme complexity increases
Solution Approach 1:
The system segments the uplink communication control into multiple independent adjustable parameters such as transmission intervals, data rates, and modulation schemes. This segmentation allows the access point to manage buffer overflow risk through targeted parameter adjustments rather than redesigning the entire communication scheme, reducing overall system complexity while maintaining buffer management reliability.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may buffer uplink communications. However, such approaches may be improved. An access point (AP) may receive, from a station, uplink traffic of a traffic flow for forwarding to a backhaul network via a backhaul link. The AP may monitor a buffer of the AP to determine that a quantity of buffered uplink traffic received from the station exceeds a buffer quota, the buffer quota set for the traffic flow based on a traffic throughput capacity of the backhaul link and a throughput parameter for the traffic flow. The AP may modify, based on the quantity of buffered uplink traffic exceeding the buffer quota, an uplink communication scheme to reduce the quantity of uplink traffic from the station. The AP may communicate with the station based on the modified uplink communication scheme.