WLAN Terminal Multi-Link Data Transmission Threshold Control
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Solution Overview
Problem
Existing wireless local area networks (WLANs) face challenges in efficiently managing data transmission links, leading to suboptimal utilization of wireless resources and potential waste, especially when high-rate data transmission is not continuously required.
Innovation Solution
A method is introduced where a terminal configures a data size threshold (MaxBuffer) to determine if multi-link data transmission is necessary. The terminal calculates the data size to be transmitted and sends a request signaling to a network access device if the size exceeds MaxBuffer. The network access device then determines whether the terminal should operate on multi-link based on the request signaling parameters and responds accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission links are managed statically without dynamic adjustment, then system simplicity is maintained, but wireless resource utilization rate decreases and waste increases
Solution Approach 1:
The patent implements dynamic management of data transmission links by allowing terminals to switch between single-link and multi-link operations based on real-time buffer status. When buffer data exceeds threshold MaxBuffer, the terminal activates multi-link transmission; otherwise, it uses single-link mode. This dynamic adaptation resolves the contradiction by optimizing resource utilization without requiring permanently complex multi-link infrastructure.
Solution Approach 2:
The system changes operational parameters (number of active links) based on buffer status. The terminal monitors buffer size and adjusts transmission mode accordingly, changing from single-link to multi-link operation when needed. This parameter-based control enables flexible resource allocation, improving utilization rates while maintaining manageable system complexity through clear threshold-based decision rules.
2Speed
If multi-link data transmission is always activated, then high-rate data transmission capability is ensured, but wireless resource waste increases when high-rate transmission is not needed
Solution Approach 1:
The patent makes data transmission rate dynamic rather than static. Terminals activate multi-link high-rate transmission only when buffer data exceeds threshold MaxBuffer, and switch to single-link lower-rate mode when buffer is empty or below threshold. This dynamic rate adaptation ensures high transmission capability when needed while avoiding resource waste during low-traffic periods.
Solution Approach 2:
The system employs periodic assessment of buffer status to determine transmission mode. Terminals continuously monitor buffer levels and periodically switch between single-link and multi-link operations based on whether data exceeds MaxBuffer. This periodic activation of high-rate transmission ensures speed capability is maintained when necessary while preventing continuous resource waste.
3Productivity
If dynamic multi-link management is implemented, then wireless resource utilization is optimized, but signaling overhead and system complexity increase
Solution Approach 1:
The patent extracts the decision-making logic for multi-link activation from the network access device and places it at the terminal. The terminal independently determines whether to activate multi-link mode based on its own buffer status and threshold MaxBuffer, without requiring complex network-side control signaling. This extraction reduces signaling overhead while maintaining optimized resource utilization through autonomous terminal decisions.
Solution Approach 2:
The terminal performs self-service by autonomously monitoring its buffer status and deciding when to switch between single-link and multi-link modes. The terminal uses its own buffer information and pre-configured threshold MaxBuffer to make transmission mode decisions without extensive network intervention. This self-service approach optimizes resource utilization while minimizing signaling overhead by eliminating the need for continuous network-controlled mode adjustments.
Data Source
AI summary
Disclosed are a method, terminal, and system for transmitting and receiving data in a wireless local area network, and a network access device. The method for transmitting and receiving data in a wireless local area network includes: a parameter MaxBuffer is configured; a terminal calculates a size of data to be transmitted, in local buffer, and sends a request signaling to the network access device when the size of data is greater than or equal to MaxBuffer; the network access device, after receiving the request signaling, reads parameters in the request signaling, determines whether the terminal operates on multi-link or not, and sends a response signaling that contains determining whether the terminal operates on multi-link or not to the terminal; and the terminal, after receiving the response signaling, reads parameters in the response signaling, and performs data transmitting and receiving according to the read parameters and local capability parameters.