Communication Resource Allocation Frame for Wi-Fi Spectrum Efficiency
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Solution Overview
Problem
In next-generation Wi-Fi technologies like IEEE802.11ax, resource allocation mechanisms result in wastage of resources due to the allocation of only one resource unit (RU) per station (STA) at a time, leading to low spectrum utilization, especially in scenarios requiring multiple frequency bands for improved throughput.
Innovation Solution
A method and device for allocating multiple RUs to each STA by generating and transmitting a communication-resource-allocation message frame that identifies the allocated RUs, using a communication-resource-allocation information bit to specify the RU type and number, thereby improving spectrum utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If only one resource unit (RU) is allocated to each station (STA) at a time, then the resource allocation mechanism is simple, but spectrum utilization is low
Solution Approach 1:
The patent merges multiple resource unit allocations into a single communication-resource-allocation message frame. Instead of sending separate allocation messages for each RU, the system combines multiple RU allocations (identified by RU type and number fields) into one unified message structure, thereby reducing message overhead and improving spectrum utilization while maintaining manageable complexity through structured information encoding
Solution Approach 2:
The patent introduces dynamic resource allocation by allowing the AP to flexibly assign different numbers and types of RUs to each STA based on real-time channel conditions and traffic requirements. The RU type and number fields enable dynamic adjustment of allocated resources, transitioning from static one-to-one allocation to adaptive multi-RU allocation that optimizes spectrum usage
2Productivity
If multiple resource units (RUs) are allocated to each station (STA), then spectrum utilization improves, but the communication-resource-allocation message structure becomes more complex
Solution Approach 1:
The patent segments the resource allocation information into distinct fields within the message frame: RU type field, RU number field, and STA identifier field. This segmentation allows the complex multi-RU allocation information to be organized in a structured, parseable format that improves throughput by enabling efficient resource assignment while keeping the message structure manageable through clear field delimitation and hierarchical organization
Solution Approach 2:
The communication-resource-allocation message frame is designed as a universal structure that can accommodate allocations to multiple STAs simultaneously, each receiving potentially different numbers and types of RUs. The message frame serves multiple functions: identifying target STAs, specifying RU types, indicating RU quantities, and enabling efficient resource assignment all within a single unified message format, thereby improving throughput without proportionally increasing complexity
3Quantity of substance
If one resource unit (RU) is allocated per station (STA), then the allocation process is straightforward, but resource wastage increases
Solution Approach 1:
The patent changes the allocation parameters by introducing RU type and RU number as variable parameters in the allocation message. Instead of fixed one-to-one allocation, the system now varies the number of RUs (RU number field) and their types (RU type field) assigned to each STA based on actual resource needs. This parameter change enables more efficient resource utilization by matching allocation quantity to demand, reducing waste while maintaining operational simplicity through automated parameter adjustment by the AP
Data Source
AI summary
A method for allocating a communication resource is provided. The method includes: generating a communication-resource-allocation message frame in a set channel bandwidth, where the communication-resource-allocation message frame includes a communication-resource-allocation information bit, and the communication-resource-allocation information bit identifies at least one resource unit allocated to a station; and transmitting the communication-resource-allocation message frame.