EMLSR Auxiliary Link Throughput Latency
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Solution Overview
Problem
Existing Wi-Fi technologies face challenges in efficiently utilizing multiple wireless links for enhanced throughput and reduced latency without increasing hardware costs or complexity.
Innovation Solution
The extended enhanced multi-link single-radio (EMLSR) system enables non-AP multi-link devices to operate using three or more EMLSR links without requiring additional antenna/RF chains and PHY/MAC modules, by utilizing an auxiliary EMLSR link during busy periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional antenna/RF chains and PHY/MAC modules are used to support more EMLSR links, then the throughput and wireless performance are improved, but the hardware cost and device complexity increase
Solution Approach 1:
The existing antenna/RF chain and PHY/MAC module are designed to perform multiple functions: they handle both the primary EMLSR link operations and the auxiliary EMLSR link operations. The single radio is configured to switch between different links and modes (EMLSR and auxiliary EMLSR) rather than requiring dedicated hardware for each link, making the hardware universal and multi-functional.
Solution Approach 2:
The patent combines the functionality of multiple separate hardware components into a single integrated system. The auxiliary EMLSR link shares the same antenna/RF chain and PHY/MAC module as the primary links, merging what would traditionally require separate hardware into a unified multi-functional component that reduces overall system complexity and cost.
2Loss of time
If multiple EMLSR links are utilized to reduce latency, then the wireless performance is improved, but the device complexity increases
Solution Approach 1:
The system dynamically switches between different link configurations based on traffic conditions. The single radio can operate in EMLSR mode on primary links or switch to auxiliary EMLSR mode on the auxiliary link, with the configuration being dynamically adjusted rather than statically fixed. This dynamic adaptability allows latency reduction through multiple links without requiring complex permanent hardware for each possible configuration.
Solution Approach 2:
The auxiliary EMLSR link acts as an intermediary resource that can be activated when primary links are congested or unavailable. Rather than requiring all links to be permanently active and complex, the auxiliary link serves as a mediator that provides additional capacity when needed, reducing latency without permanently increasing device complexity.
Data Source
AI summary
This disclosure describes systems, methods, and devices related to extended enhanced multi-link single-radio (EMLSR) with more than two links. A multi-link device may send, to a second multi-link device, an indication that the multi-link device supports an extended enhanced multi-link single-radio (EMLSR) mode using a first enhanced EMLSR link, a second EMLSR link, and an auxiliary EMLSR link; identify a time when at least one of the first EMLSR link or the second EMLSR link are busy due to overlapping basic service set (OBSS) traffic; initiate, during the time, a transmit opportunity on the auxiliary EMLSR link; and cause to send one or more frames to the second multi-link device using the auxiliary EMLSR link during the time.