Enhanced Buffer Status Reporting for Precise Uplink Scheduling
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Solution Overview
Problem
Current buffer size reporting in wireless communication systems for extended reality (XR) and cloud gaming (CG) lacks sufficient granularity, leading to inefficient resource allocation and scheduling due to inaccurate buffer size and delay estimation, which affects system capacity and scheduling efficiency.
Innovation Solution
Introduce an enhanced buffer status report (EBSR) mechanism that includes multiple buffer size indexes and delay information to improve reporting granularity, allowing for more precise estimation of uplink data volume and delay budgets for PDU sets, enabling better resource allocation and scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional buffer status report (BSR) mechanism is used, then device complexity is reduced, but measurement precision of buffer size is insufficient
Solution Approach 1:
The buffer status report is segmented into multiple buffer size index fields (first buffer size index field, second buffer size index field, third buffer size index field) that collectively represent different portions of the buffer status. Each field reports a specific segment of the buffer, allowing for more granular and precise buffer size estimation while managing complexity through structured segmentation.
Solution Approach 2:
The patent introduces a new dimension to buffer status reporting by using multiple buffer size index fields instead of a single index. This multi-dimensional approach allows the system to represent buffer status with finer granularity, transforming the reporting from a single-value indicator to a multi-component structure that captures more detailed buffer information.
2Measurement precision
If enhanced buffer status report (EBSR) with multiple buffer size indexes is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The uplink data volume reporting is segmented into multiple buffer size index fields, where each field represents a specific portion or aspect of the buffer status. This segmentation allows for more precise estimation of uplink data volume by breaking down the complex buffer status into manageable, reportable segments with different granularities.
Solution Approach 2:
Different buffer size index fields are assigned different local qualities or granularities appropriate for their specific reporting purposes. The first buffer size index field may provide coarse-grained information while subsequent fields provide finer-grained details, allowing each part of the report to have the appropriate level of detail for its specific function.
3Measurement precision
If quantization errors are reduced through finer buffer size granularity, then measurement precision is improved, but information processing complexity increases
Solution Approach 1:
The buffer status information is segmented into multiple index fields that collectively reduce quantization errors. By dividing the buffer status representation into segments, each field can use optimized quantization levels appropriate for its range, thereby reducing overall quantization error while keeping individual field processing manageable.
Solution Approach 2:
The patent uses multiple buffer size index fields to provide more information than a single index would provide, effectively using partial actions (individual index fields) that collectively achieve excessive precision. This allows the system to reduce quantization errors by providing more detailed information than the minimum required, with each field contributing partially to the overall precise measurement.
Data Source
AI summary
Embodiments of the subject application relate to methods and apparatuses for a buffer status report (BSR). According to an embodiment of the subject application, a user equipment (UE) includes a processor and a transceiver coupled to the processor; and the processor is configured to: receive, via the transceiver from a network, a configuration for enabling a function of an enhanced buffer status report (EBSR); and transmit the EBSR via the transceiver to the network.