Wi-Fi Delay Evaluation for BSS Contention and Interference
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Solution Overview
Problem
Existing wireless communication technologies, such as Wi-Fi, struggle to evaluate delay performance effectively, particularly in environments with high interference, making it difficult to support low-delay services like virtual reality and online gaming.
Innovation Solution
A method and apparatus for evaluating delay performance by assessing internal communication contention and external interference within a basic service set (BSS) using pre-acquired delay evaluation parameters, allowing for optimization of service access strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CSMA/CA mechanism is used for channel access, then multi-station fair access and relatively large throughput are achieved, but strict guarantee of low-delay service transmission requirements cannot be satisfied
Solution Approach 1:
The patent segments the delay performance into two distinct components: internal delay (caused by BSS internal communication contention and control) and external delay (caused by external interference to BSS). This segmentation allows for separate evaluation and optimization of each delay component, enabling more precise control over transmission delay while maintaining throughput performance.
2Ease of operation
If PCF and HCF controlled channel access are introduced to achieve controlled service access capability, then certain degree of service access control is achieved, but reliability and robustness are greatly reduced when service access capability evaluation is interfered in operating frequency band
Solution Approach 1:
The patent introduces a feedback mechanism that continuously evaluates delay performance by measuring internal and external delay components. This feedback information is used to dynamically adjust service access control decisions, allowing the system to maintain reliability by adapting to changing channel conditions and interference levels while preserving controlled service access capability.
3Device complexity
If delay performance evaluation is not implemented, then system complexity is kept low, but optimization of Wi-Fi access strategies for low-delay services cannot be achieved
Solution Approach 1:
The patent performs preliminary evaluation of delay performance by pre-acquiring and measuring internal and external delay parameters before making access control decisions. This preliminary action enables the system to optimize access strategies for low-delay services by having delay performance information available in advance, without requiring complex real-time analysis during critical transmission moments.
Data Source
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AI summary
Provided are a delay performance evaluation method and apparatus and a storage medium. The delay performance evaluation method includes evaluating, by a communication node, a delay performance involved in an internal communication environment of a basic service set, BSS, where the communication node is located according to pre-acquired delay evaluation parameters caused by internal communication contention or control of the BSS; and/or evaluating, by a communication node, a delay performance involved in an external interference of a BSS where the communication node is located according to pre-acquired delay evaluation parameters caused by the external interference of the BSS.