Simultaneous A-MPDU Transmission from Access Points to Multiple Stations
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Solution Overview
Problem
Existing wireless communication technologies face challenges in providing efficient data transmission in high-density wireless LAN environments, particularly in scenarios involving multiple stations and access points, where simultaneous data transmission is not effectively supported.
Innovation Solution
A wireless communication terminal that collects data for multiple terminals and generates an aggregate-MAC protocol data unit (A-MPDU) for simultaneous transmission, using a transceiver to manage channel allocation and modulation schemes, allowing simultaneous data transmission to multiple terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted sequentially to multiple terminals using existing wireless communication technologies, then each terminal can receive data reliably, but the data transmission efficiency and channel utilization are reduced
Solution Approach 1:
The patent combines multiple individual data transmissions into a single aggregate transmission by merging data from multiple terminals into one A-MPDU structure. This allows the access point to transmit data to multiple stations simultaneously over the same channel, improving productivity while reducing the time loss associated with sequential transmissions.
Solution Approach 2:
The aggregate-MAC protocol data unit serves multiple functions simultaneously: it acts as a container for multiple individual data units, provides channel allocation information for multiple stations, and enables simultaneous data delivery to multiple terminals. This multi-functionality resolves the contradiction by making a single transmission structure serve multiple purposes.
2Productivity
If simultaneous data transmission to multiple terminals is implemented, then data communication efficiency is improved, but the complexity of channel allocation and frequency management increases
Solution Approach 1:
The patent segments the aggregate-MAC protocol data unit into multiple individual data units, each with its own channel allocation information. This segmentation allows complex channel allocation to be broken down into manageable individual allocations within the aggregate structure, reducing the overall complexity while enabling simultaneous transmission.
Solution Approach 2:
The aggregate-MAC protocol data unit acts as an intermediary structure that manages multiple channel allocations. It provides a unified framework for handling channel assignment, modulation schemes, and other transmission parameters for multiple stations, thereby reducing the complexity that would arise from managing separate transmissions.
3Speed
If multiple channels are allocated to multiple terminals for simultaneous transmission, then data transmission speed is improved, but the frequency allocation management becomes more complex
Solution Approach 1:
The patent applies local quality by assigning specific channel allocation information and modulation schemes to individual data units within the aggregate structure. Each terminal receives data optimized for its specific channel conditions, improving transmission speed while the centralized aggregate structure manages the complexity of frequency allocation.
Data Source
AI summary
Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit and receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The processor collects data to be transmitted to a plurality of terminals, generates an aggregate-MAC protocol data unit for transmitting data to the plurality of terminals at the same time, and transmits the aggregate-MAC protocol data unit to the plurality of terminals.