Resource Unit Allocation for Multi-Antenna Wi-Fi Stations
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Solution Overview
Problem
Current Wi-Fi technologies, such as IEEE802.11ax, often allocate only one resource unit (RU) to a station at a time, limiting spectrum usage efficiency and data transmission capabilities, especially in scenarios requiring multiple antennas for improved signal transmission and reception.
Innovation Solution
A communication resource unit allocation method that determines the number of resource units (RUs) to allocate based on the number of antennas of a second radio communication device, allowing for the allocation of two or more RUs to match the number of antennas, enabling beam forming and improving signal transmission reliability and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only one resource unit is allocated to a station at a time, then the allocation method is simple, but the spectrum usage efficiency and data transmission capability are limited
Solution Approach 1:
The patent segments the resource units into multiple groups that can be allocated to different stations simultaneously. Instead of allocating one RU at a time, the system divides the available RUs into multiple allocable sets, enabling parallel resource distribution across multiple stations, thereby improving spectrum usage efficiency while maintaining manageable allocation complexity through structured segmentation
Solution Approach 2:
The patent implements dynamic resource unit allocation where the number and configuration of RUs allocated to each station are adjusted in real-time based on current channel conditions, station capabilities (including antenna count), and network demands. This dynamic approach allows the system to optimize spectrum efficiency adaptively without requiring a fixed complex allocation scheme
2Productivity
If one resource unit is allocated to a station, then the allocation process is straightforward, but the data transmission throughput is limited
Solution Approach 1:
The patent merges multiple resource units and allocates them to stations with multiple antennas simultaneously. By combining multiple RUs and coordinating their allocation with multi-antenna configurations, the system achieves higher data transmission throughput through spatial multiplexing and beam forming, while the merging process is managed through unified allocation logic that controls complexity
Solution Approach 2:
The patent changes the allocation parameters dynamically based on station antenna count and channel conditions. When a station has multiple antennas, the system adjusts the number of RUs allocated, the RU size, and the allocation strategy to optimize throughput. This parameter-based adaptation allows high throughput for capable stations while maintaining simple allocation for basic stations, balancing performance and complexity
3Reliability
If resource units are allocated without considering antenna number, then the allocation is simple, but the signal transmission reliability is reduced
Solution Approach 1:
The patent applies local quality by tailoring the resource unit allocation to each station's specific antenna configuration. Stations with more antennas receive allocations optimized for their capabilities (such as multiple RUs for beam forming), while stations with fewer antennas receive appropriately scaled allocations. This localized optimization improves signal transmission reliability for each station according to its hardware characteristics without requiring a completely complex universal allocation scheme
Solution Approach 2:
The patent incorporates feedback mechanisms where the access point receives information about station antenna count and channel conditions, then uses this feedback to adjust resource unit allocations accordingly. This feedback loop ensures that allocations are optimized for reliable signal transmission based on actual station capabilities, while the feedback processing follows standardized procedures that manage system complexity
Data Source
AI summary
A communication resource unit allocation method, includes: receiving a message sent by a second radio communication device, wherein the message comprises an information element indicating a number of antennas of the second radio communication device.