Multi-User Transmission Allocation Frame for Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multi-user transmission and reception, particularly in dense environments with many access points and stations, where existing technologies struggle to optimize resource allocation and improve spectrum efficiency and throughput.
Innovation Solution
The proposed method involves a wireless communication system that uses a station (STA) to receive an allocation frame from an access point (AP), which includes resource allocation information for multi-user (MU) transmission, indicating whether the resource is for orthogonal frequency division multiple access (OFDMA) or multi-input multi-output (MIMO) transmission, allowing for efficient allocation of frequency or spatial resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-user transmission is implemented in dense environments with many access points and stations, then spectrum efficiency and area throughput are improved, but resource allocation complexity and system management difficulty increase
Solution Approach 1:
The patent segments the resource allocation process by introducing separate indication information fields in allocation frames to distinguish between OFDMA and MU-MIMO transmission types. This segmentation allows the system to manage different multi-user transmission modes independently, reducing overall allocation complexity while maintaining high spectrum efficiency in dense environments
Solution Approach 2:
The patent implements dynamic resource allocation by enabling access points to flexibly switch between OFDMA and MU-MIMO transmission modes based on real-time channel conditions and user requirements. The allocation frames dynamically indicate the transmission type, allowing the system to adapt to changing environmental conditions and optimize performance in dense deployments
2Productivity
If indication information is added to allocation frames to specify OFDMA or MU-MIMO transmission type, then transmission efficiency is improved, but frame length increases
Solution Approach 1:
The patent applies local quality by adding indication information only in specific fields within the allocation frame where it is most needed for transmission type identification. This targeted approach provides the necessary transmission efficiency improvements while minimizing the overall frame length increase, as the indication bits are inserted strategically rather than throughout the entire frame structure
Data Source
AI summary
Disclosed in the present invention are a multi-user (MU) transmission method in a wireless communication system and a device therefor. Specifically, the MU transmission method in a wireless communication system comprises a step in which a station (STA) receives, from an access point (AP), an allocation frame comprising resource allocation information for the MU transmission, wherein the allocation frame may comprise indication information for indicating whether the resource allocation information indicates a frequency resource for orthogonal frequency division multiple access (OFDMA) transmission, or indicates a spatial resource for MU multi-input multi-output (MIMO) transmission.