Dynamic Buffer Status Report Table Generation for XR
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Solution Overview
Problem
Current buffer status reporting in wireless communication systems results in substantial absolute errors for large buffer sizes, leading to inefficient allocation of network resources, particularly in data-intensive applications like extended reality (XR) due to the use of fixed buffer status report encoding tables.
Innovation Solution
A user equipment (UE) dynamically generates a buffer status report table based on configured parameters signaled by a network node, allowing for more accurate encoding and reporting of buffer sizes, thereby minimizing absolute errors and enhancing resource allocation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed buffer status report encoding table is used, then the encoding process is simple, but the absolute error in buffer size reporting is substantial for large buffer sizes
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a fixed, static encoding table to a dynamic encoding table that adapts to the actual buffer size. The encoding table is generated based on the current buffer status, allowing the step size to vary according to the buffer size. This dynamic approach ensures that smaller buffer sizes are encoded with finer granularity while larger buffer sizes use coarser granularity, thereby reducing absolute errors across all buffer size ranges without significantly increasing encoding complexity.
2Ease of operation
If a fixed buffer status report encoding table is used, then the implementation is straightforward, but network resource allocation is inefficient for data-intensive applications
Solution Approach 1:
The patent applies parameter changes by modifying the encoding parameters (step size, granularity) based on the buffer size. Instead of using a fixed encoding table with constant parameters, the system dynamically adjusts the encoding parameters to match the current buffer status. This allows the system to maintain implementation simplicity while significantly improving network resource allocation efficiency, as the buffer size reporting becomes much more accurate for data-intensive applications like XR.
3Device complexity
If a fixed buffer status report encoding table is used, then the system is easy to implement, but the absolute error increases with larger buffer sizes
Solution Approach 1:
The patent implements a dynamic encoding table generation mechanism that adapts to the current buffer size. The system calculates appropriate step sizes and encoding parameters based on the actual buffer status, ensuring that the encoding precision is optimized for the current scale of data. This dynamic approach reduces absolute errors for large buffer sizes while maintaining system implementation feasibility, as the generation logic follows a systematic method based on buffer status parameters.
Data Source
AI summary
A user equipment (UE) may receive data, for transmission, at a buffer of the UE, such as when data is generated by an application of the UE. The UE may periodically transmit a buffer status report (BSR) to indicate an amount of data that is present at the buffer of the UE, among other information. Some aspects described herein enable enhanced buffer status reporting. For example, a UE may dynamically generate a buffer status report table based at least in part on a set of configured parameters (e.g., that a network node may signal to the UE).