Multi-Link Assisted Transmission for NSTR Interference Control
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Solution Overview
Problem
Multi-link devices experience interference and media loss-of-synchronism due to poor anti-interference performance of transceivers, leading to data transmission failures on non-simultaneous transmitting and receiving (NSTR) links, which affect overall throughput and latency in wireless networks.
Innovation Solution
A method and apparatus for controlling multi-link devices to manage data transmission by utilizing an assisted-transmission mechanism across both STR and NSTR link sets, enabling coordinated data exchange through message exchanges and duration allocations to ensure efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multi-link devices transmit data on NSTR links simultaneously, then transmission speed increases, but interference and media loss-of-synchronism occur leading to transmission failures
Solution Approach 1:
The patent segments the transmission process by dividing links into STR and NSTR sets, and further segments NSTR link transmissions into sequential slots within a transmission opportunity. This allows the system to maintain high throughput on STR links while preventing interference on NSTR links through temporal segmentation, resolving the contradiction between speed and reliability.
Solution Approach 2:
The patent applies preliminary action by having the first multi-link device send a data packet indicating a transmission requirement before actual transmission occurs. The second multi-link device then allocates a transmission opportunity in advance, ensuring that NSTR links are transmitted sequentially without interference while maintaining overall transmission efficiency.
2Productivity
If transmission duration is extended to accommodate more data, then throughput increases, but latency increases
Solution Approach 1:
The patent implements dynamic transmission opportunity allocation where the second multi-link device determines the exact duration needed for NSTR link transmissions based on actual data requirements. This dynamic adjustment allows the system to extend transmission time only when necessary for throughput while avoiding unnecessary latency during STR link transmissions, resolving the contradiction between productivity and time loss.
Data Source
AI summary
Disclosed are a method and apparatus for controlling a multi-link device to transmit data, a device and a storage medium. The method comprises: a first multi-link device transmitting a data packet to a second multi-link device via a first link, the data packet indicating that the second multi-link device is required to assist in transmitting data on a second link; receiving a first message which is for assisted transmission and is transmitted by the second multi-link device via the second link; transmitting a second message responding to the first message to the second multi-link device via the second link; and transmitting data via the second link within the transmission duration allocated to the first multi-link device on the second link.