Dual-Connectivity MAC Padding Control via Adaptive BSR Scaling
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Solution Overview
Problem
In wireless networks with dual connectivity, the lack of inter-communication between MAC scheduler entities leads to excessive uplink grants, resulting in MAC padding and resource wastage due to duplicate buffer status reporting, increasing power consumption and network resource inefficiency.
Innovation Solution
A method involving continuous monitoring of UL transmissions using machine learning (ML) models to detect and dynamically scale down MAC padding by adjusting BSR reports and grant allocations, optimizing data volumes and reducing unnecessary uplink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If duplicate BSR reporting is performed over both MAC entities, then buffer status information is provided to both schedulers, but excessive uplink grants are allocated leading to MAC padding and resource wastage
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors the ratio of MAC padding to total uplink transmission. Based on this monitoring, the UE dynamically adjusts the BSR data volume in subsequent reports. When excessive padding is detected, the UE scales down the BSR data volume to prevent future excessive grant allocations, creating a closed-loop feedback system that optimizes resource usage while maintaining reliable buffer status reporting
Solution Approach 2:
The patent transforms the static BSR reporting mechanism into a dynamic one by introducing adaptive scaling of BSR data volume. The scaling factor is adjusted dynamically based on the monitored MAC padding ratio, allowing the system to adapt to changing traffic conditions and prevent resource wastage while maintaining reliable buffer status information delivery
2Reliability
If duplicate BSR reporting is performed over both MAC entities, then buffer status information is provided to both schedulers, but excessive uplink grants are allocated resulting in resource wastage
Solution Approach 1:
The patent implements a feedback mechanism where the network monitors the MAC padding ratio in uplink transmissions. Based on this feedback, the network dynamically adjusts the BSR data volume requested in subsequent reports. When excessive padding is detected, the system scales down the BSR data volume to prevent future excessive grant allocations, creating a closed-loop feedback system that optimizes network resource usage while maintaining reliable buffer status reporting
Solution Approach 2:
The patent transforms the static BSR reporting mechanism into a dynamic one by introducing adaptive scaling of BSR data volume. The scaling factor is adjusted dynamically based on the monitored MAC padding ratio, allowing the system to adapt to changing traffic conditions and prevent resource wastage while maintaining reliable buffer status information delivery
Data Source
AI summary
A method for optimizing a medium access control (MAC) padding and uplink (UL) grants in a wireless network is provided. The method includes transmitting buffer status report (BSR) to a network apparatus from at least one of a first MAC entity or a second MAC entity, receiving UL grants from the network apparatus based on a data volume requested in the BSR, transmitting UL transmission data from one of the first MAC entity or the second MAC entity to the network apparatus by MAC padding the UL transmission data based on the UL grants and the data volume, determining a set of padded bits of the UL transmission data one of the first MAC entity or the second MAC entity, and scaling the data volume to a scaled data volume be requested in a subsequent BSR at the at least one of the first MAC entity or the second MAC entity.