Multi-Link WLAN Data Transmission Without Extra AID Expansion
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Solution Overview
Problem
The increasing number of users and application types in wireless local area networks (WLAN) requires higher network throughput and reduced delays, but existing systems face incompatibility issues with increased association identifiers (AIDs), necessitating device replacements and increased maintenance costs.
Innovation Solution
A method for transmitting data in a multi-link system that assigns a unique association identifier to each terminal device, utilizing pre-established mapping relationships between device addresses, logical data transceiving stations, and link identifiers to generate broadcast messages, allowing efficient data transmission without requiring additional AIDs or device replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of association identifiers (AIDs) is increased to accommodate more terminal devices, then the network can support more users, but existing terminal devices become incompatible and must be replaced, increasing maintenance costs
Solution Approach 1:
The patent introduces link identifiers as a new dimension to differentiate data streams. Instead of increasing AIDs in the traditional dimension, the system uses multiple links (dimensional extension) where each link can handle data for terminal devices. This allows the network to support more devices without increasing the AID space, as multiple devices can share the same AID across different links.
Solution Approach 2:
The patent segments the data transmission path by introducing multiple links between terminal devices and the access device. Each link is identified by a link identifier, allowing the system to divide the handling of terminal devices across different links. This segmentation enables the same AID to be reused across different links, effectively increasing device capacity without increasing AID values.
2Productivity
If multiple data transmission links are established to improve network throughput, then data transmission efficiency increases, but the complexity of managing mapping relationships between addresses, AIDs, and link identifiers increases
Solution Approach 1:
The patent establishes mapping relationships between terminal device addresses, AIDs, and link identifiers in advance, before actual data transmission occurs. These pre-established mappings are stored and readily available when data needs to be transmitted, eliminating the need for complex real-time calculations or negotiations during data transfer.
Solution Approach 2:
The patent uses link identifiers as intermediaries to connect terminal device addresses with AIDs. Instead of directly mapping addresses to AIDs, the system introduces link identifiers as an intermediate layer that simplifies the overall mapping structure. This intermediary approach makes the system more manageable by breaking down complex mappings into simpler, modular relationships.
Data Source
AI summary
The disclosure provides a method for transmitting data in a multi-link system, a device, a system and a medium, and relates to the technical field of communication. The method for transmitting data includes: determining a target terminal device receiving buffered data, and generating a broadcast message according to an address of the target terminal device, pre-established first mapping relationship and pre-established second mapping relationship, where the first mapping relationship include a mapping relationship between addresses of terminal devices, addresses of logical data transceiving stations, association identifiers and link identifiers, and the second mapping relationship include a mapping relationship between the buffered data and the link identifiers, and one association identifier is correspondingly assigned to each terminal device; broadcasting the broadcast message; receiving a data poll message sent by the target terminal device; and sending, in response to the data poll message, the buffered data to the target terminal device on a target link. A technical solution of the disclosure can reduce maintenance cost of wireless local area network (WLAN).