Multi-Link Buffer Status Report for Wireless Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Multi-Link Operation (MLO) in wireless communication networks lacks guarantees for latency, reliability, and jitter due to unawareness of link disturbances, leading to inefficient data transmission scheduling.
Innovation Solution
A Multi-Link Buffer Status Report (ML-BSR) mechanism is introduced, where a station reports the amount of data to be transmitted along with an indication of the preferred link to the Access Point (AP), enabling the AP to schedule resources more effectively and consider link-specific conditions for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AP MLD schedules transmissions without awareness of link disturbances, then the scheduling process is simple, but the latency, reliability, and jitter cannot be guaranteed
Solution Approach 1:
The patent implements a feedback mechanism where the non-AP MLD reports link quality metrics (such as signal strength, interference levels, or preferred link indications) to the AP MLD. This feedback enables the AP MLD to make informed scheduling decisions that account for actual link conditions, thereby guaranteeing latency, reliability, and jitter requirements while maintaining manageable scheduling complexity through structured reporting formats.
2Productivity
If the station MLD transmits data without link preference indication, then the transmission process is simple, but the data throughput is not optimized
Solution Approach 1:
The patent applies preliminary action by having the non-AP MLD proactively indicate its preferred link or link quality metrics before the actual data transmission occurs. This advance information allows the AP MLD to pre-configure optimal transmission parameters and allocate resources efficiently, maximizing data throughput while ensuring the necessary link condition information is captured and utilized.
3Productivity
If multiple links are used for concurrent communication, then the overall throughput is improved, but the scheduling and resource allocation becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the multi-link resource allocation into independent, manageable units. Each link is evaluated and scheduled separately based on its specific conditions and the station's preferences, allowing the AP MLD to optimize throughput across multiple links while maintaining simple, modular scheduling logic that doesn't become exponentially complex with the number of links.
Data Source
AI summary
The present invention concerns a communication method in a wireless communication network comprising an access point, AP, multi-link device, MLD, having multiple affiliated access points, and at least one station MLD, having multiple affiliated stations, both station MLD and AP MLD being able to exchange data using one or more links, the method comprising at the station MLD: transmitting to the AP MLD a multi-link buffer status report, ML-BSR, comprising an indication relating to an amount of data to be transmitted, for the AP MLD to schedule a resource to the station MLD to transmit data; and wherein the ML-BSR further comprises an indication relating to a link on which the station MLD expects to be scheduled for the transmission of the amount of data to be transmitted.