DSR MAC CE Format Selection for Buffer-Aware Network Scheduling
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Solution Overview
Problem
Existing 3GPP networks face limitations in data transmission due to limited buffer space, leading to data discard without transmission, and current delay status report (DSR) medium access control (MAC) control elements provide insufficient information, necessitating enhanced reporting formats for better scheduling.
Innovation Solution
Introduce multiple DSR MAC CE formats that include additional information such as multiple pairs of remaining time/buffer information, importance levels, and non-delay-critical data, with UE selecting the appropriate format based on conditions like LCG/LCH triggers, data volume, and resource availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple DSR MAC CE formats are introduced to provide comprehensive buffer status information, then the information completeness improves, but the device complexity increases
Solution Approach 1:
The patent segments buffer status reporting into multiple specialized MAC CE formats, each designed for specific reporting scenarios. Different formats handle different aspects of buffer status (e.g., delay status, volume status, combined status) allowing comprehensive information to be conveyed through modular, scenario-specific structures rather than a single complex format.
Solution Approach 2:
The patent implements dynamic format selection where the UE chooses the appropriate MAC CE format based on current buffer conditions, network configuration, and reporting requirements. This dynamic adaptation allows the system to use simple formats when sufficient and complex formats only when necessary, optimizing the balance between information completeness and complexity.
2Measurement precision
If multiple pairs of remaining time/buffer information are included in DSR MAC CE, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The patent applies local quality by including multiple pairs of remaining time/buffer information fields within the MAC CE structure, where each pair provides precise measurements for specific buffer conditions. This allows high measurement precision for critical buffer parameters while maintaining a structured, organized format that manages complexity through systematic field arrangement.
3Adaptability or versatility
If DSR reporting includes importance levels and non-delay-critical data information, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The patent enhances adaptability by incorporating multiple parameter dimensions into the DSR reporting, including importance levels, data volume information, and delay status. These parameter changes allow the network to adapt scheduling decisions based on comprehensive buffer status information, with each parameter providing a different aspect of buffer characterization for more versatile scheduling control.
Data Source
AI summary
The present application relates to devices and components including apparatus, systems, and methods to select a delay status report (DSR) medium access control (MAC) control element (CE) format for a DSR.