Multi-Link Device ACK Reception via Separate Link
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Solution Overview
Problem
Current wireless communication systems supporting multi-link operations face challenges in optimizing data transmission and acknowledgement (ACK) reception efficiency, particularly in next-generation WLAN standards like 802.11be, where data and ACK signals often share the same links, leading to potential bottlenecks and reduced throughput.
Innovation Solution
The proposed solution involves a method and apparatus where a first multi-link device transmits data using one link and receives ACKs through a different link, allowing for separate data transmission and acknowledgement links, thereby optimizing link utilization and enhancing performance in multi-link operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If data and ACK signals share the same link, then link utilization is simplified, but throughput is reduced due to potential bottlenecks
Solution Approach 1:
The patent segments the communication function by separating data transmission and ACK reception into different links. The first link is dedicated for data transmission while the second link is used for ACK reception, allowing independent optimization of each link's performance characteristics and avoiding mutual interference that would occur if both functions shared the same link.
2Productivity
If separate links are used for data transmission and ACK reception, then throughput is improved, but device complexity increases
Solution Approach 1:
The patent transitions from a single-link configuration to a multi-link configuration, adding the dimension of link diversity. By utilizing multiple communication links (first link for data, second link for ACK), the system achieves higher throughput by paralleling data and acknowledgment pathways, similar to how adding spatial dimensions can resolve bottlenecks in other systems.
Data Source
AI summary
An operating method of a first multi-link device (MLD), including: transmitting, by the first MLD, first data to a second MLD using a first link, wherein the first MLD is configured to communicate with the second MLD using the first link and a second link; and receiving, by the first MLD, a first acknowledgement (ACK) with respect to the first data through the second link and not through the first link.