Unified Buffer-Delay Reporting for 5G NR Uplink Scheduling
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Solution Overview
Problem
Existing wireless networks lack a unified system for integrating Buffer Status Reports (BSRs) and Delay Status Reports (DSRs), leading to redundant signaling and inefficiencies in uplink scheduling and resource allocation.
Innovation Solution
A system that unifies BSRs and DSRs into a single framework, employing adaptive triggering based on various conditions and flexible formats (Short, Long, Truncated) to optimize reporting, reducing overhead and improving network efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If separate BSR and DSR mechanisms are used, then detailed buffer and delay status information can be reported, but signaling overhead and redundancy increase
Solution Approach 1:
The patent combines separate Buffer Status Reports (BSR) and Delay Status Reports (DSR) into a unified Buffer and Delay Status Report (BDSR) mechanism. This merging consolidates redundant signaling while preserving both buffer status and delay status information, thereby reducing overhead without losing completeness of status reporting.
Solution Approach 2:
The BDSR mechanism serves multiple functions simultaneously: it reports buffer status, delay status, and can indicate both immediate and future buffer conditions. This multi-functionality eliminates the need for separate reporting mechanisms, reducing signaling overhead while maintaining comprehensive status information.
2Measurement precision
If frequent status reports are generated, then scheduling accuracy improves, but resource waste and overhead increase
Solution Approach 1:
The patent implements dynamic triggering mechanisms for BDSR generation based on real-time conditions such as data availability, delay thresholds, and network state. This dynamic approach ensures reports are generated only when necessary for accurate scheduling, avoiding unnecessary resource consumption while maintaining scheduling precision.
Solution Approach 2:
The mechanism incorporates feedback loops where the network node evaluates triggering conditions based on previous report states and current network conditions. This feedback-driven triggering ensures that status reports are generated at optimal moments for scheduling accuracy without wasting resources on redundant reports.
3Productivity
If adaptive triggering is implemented, then resource usage optimizes, but system complexity increases
Solution Approach 1:
The patent segments the triggering logic into distinct, manageable conditions (data availability trigger, delay threshold trigger, periodic trigger, etc.). Each condition is independently evaluated, making the complex adaptive triggering system modular and easier to implement while maintaining resource optimization benefits.
Data Source
AI summary
The present invention relates to the Buffer and Delay Status Reporting (BDSR) mechanism which is an innovative system designed to enhance uplink scheduling and resource allocation in next-generation wireless networks by unifying Buffer Status Reports (BSRs) and Delay Status Reports (DSRs) into a single reporting framework, thus eliminating redundant signaling and reduces overhead. Further, the mechanism features adaptive triggering based on data availability and delay thresholds, and it offers flexible reporting formats to optimize radio resource use. These advancements enable more accurate and efficient network performance, particularly in supporting delay-sensitive applications with diverse quality of service requirements.