Wireless Channel Access Restrictions Using Composite Consumption Metrics
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Solution Overview
Problem
In multi-user-concurrent-access wireless networks, existing channel access policies fail to accurately measure and manage the usage of wireless channels, leading to inefficiencies and unfair resource distribution among clients with different communication technologies, as they do not account for differences in bandwidth and spatial stream consumption.
Innovation Solution
A new consumption metric (U = N·W·T) is introduced to quantify channel resource consumption, where U represents the product of the number of spatial streams, operational bandwidth, and duration of communication, allowing for MA-aware channel access policies that enforce usage limits and distributions based on actual resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing channel access policies are used in multi-user-concurrent-access wireless networks, then channel access control is simplified, but resource allocation becomes unfair and inefficient due to inaccurate measurement of actual channel usage
Solution Approach 1:
The patent changes the measurement parameter from simple air time to a composite metric U=N×W×T that incorporates spatial streams (N), bandwidth (W), and time (T). This parameter transformation enables accurate measurement of actual channel resource consumption by different clients using various communication technologies (MIMO, OFDMA, etc.), resolving the contradiction between measurement accuracy and policy simplicity.
2Productivity
If channel access restrictions are not imposed, then network operation is simple, but resource monopolization occurs and network performance deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the access point continuously monitors the consumption metric U for each client, compares it against allocated thresholds, and dynamically adjusts channel access restrictions accordingly. This feedback loop ensures fair resource distribution and prevents monopolization while maintaining automated management, thus improving network performance without excessive operational complexity.
3Adaptability or versatility
If uniform channel access policies are applied to all clients, then policy implementation is straightforward, but clients with different communication technologies experience unfair resource distribution
Solution Approach 1:
The patent creates a universal consumption metric U=N×W×T that works across different communication technologies (MIMO, OFDMA, traditional WiFi) by accounting for their respective spatial stream and bandwidth characteristics. This universal metric enables fair comparison and resource allocation among diverse client types without requiring technology-specific policies, thus achieving both adaptability and measurement precision.
Data Source
AI summary
An example method of controlling a wireless access point may include associating accumulated-channel-resource-consumption variables with, respectively, resource consumers of the wireless access point. The method may further include, for wireless communications of the wireless access point: determining a number of spatial streams effectively consumed by the respective wireless communication; determining an operational bandwidth effectively consumed by the respective wireless communication; determining a duration of the respective wireless communication; determining a channel-resource-consumption amount for the respective wireless communication based on the number of spatial streams effectively consumed by the respective wireless communication, the operational bandwidth effectively consumed by the respective wireless communication, and the duration of the respective wireless communication; and determining values for the accumulated-channel-resource-consumption variables by accumulating the channel-resource-consumption amounts per resource consumer. The method may further include determining whether to impose channel access restrictions on the resource consumers based on their respective accumulated-channel-resource-consumption variables.