Multi-Link Wireless LAN Frame Transmission Latency Control
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Solution Overview
Problem
Current wireless LAN technologies face challenges in supporting low-latency communications, particularly in multi-link environments where efficient channel access and frame transmission methods are needed to reduce transmission latency and improve system performance.
Innovation Solution
The proposed solution involves a method for frame transmission and reception in a wireless LAN system that includes receiving initial control frames through multiple links, performing frame transmission and reception procedures, and operating in a listening mode after completing these procedures. This method involves transmitting and receiving buffer status reports and using trigger frames like BSRP or MU-RTS to manage traffic and channel access across multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-link operations are implemented to improve throughput, then data transmission capacity is improved, but transmission latency increases due to undefined channel access methods and frame transmission procedures
Solution Approach 1:
The patent applies preliminary action by establishing complete multi-link operation protocols including channel access methods and frame transmission procedures before actual data transmission begins. This pre-definition of communication rules eliminates latency caused by undefined operations during transmission.
Solution Approach 2:
The patent changes operational parameters by defining specific channel access methods and frame transmission procedures for multi-link operations, transforming the undefined state into a controlled state with measurable and optimized transmission characteristics.
2Loss of time
If detailed multi-link operation methods are defined to reduce latency, then transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the multi-link operation protocol into distinct components: channel access methods, frame transmission procedures, and data transmission rules. This segmentation makes the complex system more manageable and implementable while maintaining low latency performance.
3Productivity
If channel access methods are defined for multiple links to improve transmission control, then frame transmission efficiency is improved, but device operation complexity increases
Solution Approach 1:
The patent enables devices to autonomously manage multi-link operations by defining clear channel access methods and frame transmission procedures that devices can execute independently, reducing the need for complex external coordination while improving transmission efficiency.
Data Source
AI summary
A method and a device are disclosed for low latency communication in a communication system supporting multiple links. An operating method of a first device comprises the steps of: receiving a first initial control frame from a second device on a first link from among multiple links; performing a frame transmission/reception procedure with the second device on the first link on which the first initial control frame is received; and operating in a listening mode on one or more links from among the multiple links if the frame transmission/reception procedure is completed.