Low Latency Queue Activation in Wireless Networks
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Solution Overview
Problem
Current wireless local area network (WLAN) systems face challenges in efficiently managing low latency queue conditions, particularly in prioritizing and negotiating traffic requirements for low latency applications, which can lead to delays and reduced network performance.
Innovation Solution
A method is introduced where a station (STA) in a WLAN system can transmit and receive signals to activate and terminate a low latency queue, with predefined criteria for activation and termination, ensuring higher priority for low latency traffic by negotiating these conditions with the access point (AP) during the association procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a new access category for low latency is defined with higher priority, then low latency traffic transmission speed is improved, but device complexity increases due to additional queue management and negotiation mechanisms
Solution Approach 1:
The patent segments the traffic queue into a dedicated low latency queue (queue 0) separated from other access categories. This segmentation allows low latency traffic to be handled independently with specialized management rules, improving transmission speed for time-sensitive traffic while isolating the complexity to a specific queue structure rather than affecting the entire queue management system
Solution Approach 2:
The patent implements preliminary negotiation during the association procedure between STA and AP, where criteria for low latency queue activation and termination are established in advance. This preliminary action prevents the need for complex real-time negotiations and dynamic queue management during data transmission, reducing operational complexity while maintaining high transmission speed
2Productivity
If criteria for low latency queue activation and termination are negotiated in advance during association procedure, then network performance is improved through optimized resource allocation, but the association procedure complexity increases
Solution Approach 1:
The patent moves the negotiation of low latency queue criteria to the association procedure phase, performing all necessary agreements about queue activation conditions, termination conditions, and access category parameters in advance. This preliminary action consolidates complexity into a one-time setup phase rather than requiring continuous complex negotiations during data transmission, improving overall network performance while managing complexity through temporal separation
Solution Approach 2:
The patent enables STAs to autonomously determine whether to activate the low latency queue based on pre-negotiated criteria and their own traffic characteristics. Instead of requiring continuous AP intervention and complex real-time negotiations, the STA can self-evaluate its traffic against the pre-established criteria and self-activate or self-terminate the low latency queue, improving network performance through responsive resource allocation while reducing procedural complexity
Data Source
AI summary
In a wireless local area network system, a station (STA) may transmit, to an access point (AP), low-latency queue capability information including information related to whether the STA supports a low-latency queue. The STA may receive, from the AP, low-latency queue operation information including information related to a low-latency queue activation condition. The present invention may include a step of allowing the STA to transmit a low-latency queue activation signal to the AP on the basis of the low-latency queue activation condition.