AP MLD Group Data Transmission Across Diverse Wireless Links
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Solution Overview
Problem
Existing wireless communication systems face challenges in improving data throughput and reducing latency in multi-link wireless communication environments, particularly in managing group data transmissions across multiple communication links with diverse bandwidths and device capabilities.
Innovation Solution
Implementing an access point multi-link device (AP MLD) that concurrently transmits group data over multiple communication links using different modulation and coding schemes, allowing for selection of a single communication link based on device capabilities and channel conditions, and enabling multi-radio and single-radio stations to efficiently receive and combine or discard data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If group data is transmitted over multiple communication links concurrently, then data throughput is improved, but device complexity increases
Solution Approach 1:
The patent segments group data transmissions across multiple communication links (first link, second link, etc.), allowing different portions of group data to be transmitted simultaneously over different links. This segmentation enables parallel transmission paths, improving overall throughput while managing complexity by dividing the transmission task into manageable segments handled by different radio interfaces.
Solution Approach 2:
The AP MLD is designed with multi-functionality to handle both single-radio and multi-radio STAs through a unified group data transmission mechanism. The system can adaptively select which communication links to use based on STA capabilities, making the transmission system universal enough to serve diverse device types without requiring separate specialized systems for each case.
2Loss of time
If multiple communication links are used for group data transmission, then latency is reduced, but ease of operation deteriorates
Solution Approach 1:
The system dynamically adapts the group data transmission configuration based on STA capabilities. The AP MLD determines whether each STA is single-radio or multi-radio capable and adjusts the transmission strategy accordingly - using multiple links for multi-radio STAs to reduce latency, while using a single link for single-radio STAs to maintain operational simplicity. This dynamic adaptation resolves the contradiction by optimizing for speed when possible and for simplicity when necessary.
3Adaptability or versatility
If different modulation and coding schemes are used on different links, then adaptability is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent applies local quality by allowing different modulation and coding schemes (MCS) to be used on different communication links based on their specific channel conditions and STA capabilities. Each link can be independently optimized with appropriate MCS settings - for example, using more robust modulation on links with poorer conditions and higher-order modulation on links with better conditions. This localized optimization improves overall system adaptability while the coordinated transmission mechanism maintains sufficient precision in data delivery.
Data Source
AI summary
This disclosure provides systems, methods, and apparatuses for wireless communication. An example wireless communication device broadcasts a first beacon frame over a first communication link of an access point (AP) multi-link device (MLD) (APMLD), and broadcasts a second beacon frame over a second communication link of the APMLD. The first beacon frame indicates transmission of group data over the first communication link, and the second beacon frame indicates transmission of the group data over the second communication link. The wireless communication device transmits the group data, concurrently over the first and second communication links, to one or more wireless stations (STAs). Another example wireless communication device obtains one or more beacon frames indicating buffered group data in an APMLD for at least the wireless communication device, selects one or more group communication links, and obtains the group data over the one or more selected group communication links.