Delay Status Report Format for XR Buffer Precision
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Solution Overview
Problem
Current wireless communication systems, particularly 5G NR, face challenges in efficiently managing buffer size reports for extended reality (XR) services due to quantized errors and increased latency, as existing buffer status report (BSR) formats lack timing information, leading to suboptimal resource allocation and increased latency in XR traffic.
Innovation Solution
The introduction of a Delay Status Report (DSR) format that includes timing information, allowing User Equipment (UE) to report buffer size and timing details to the base station, enabling more precise resource configuration and reducing latency by incorporating additional fields for data volume and delay information, thereby enhancing XR service support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing buffer status report (BSR) format is used, then device complexity is low, but measurement precision and latency performance are insufficient for XR services
Solution Approach 1:
The report format is segmented into distinct fields: buffer size indication field, timing information field, and priority indication field. This segmentation allows precise buffering status reporting while maintaining structured simplicity for processing
Solution Approach 2:
The patent adds a timing dimension to the traditional BSR format by incorporating timing information fields that indicate when data will be available or when transmission should occur. This temporal dimension enables precise resource allocation without overwhelming complexity
2Loss of time
If existing BSR format without timing information is used, then device complexity is low, but latency increases due to suboptimal resource allocation
Solution Approach 1:
The timing information field provides advance notice about when data will be available or when transmission should occur, allowing the base station to perform preliminary resource allocation and scheduling, thereby reducing latency
Solution Approach 2:
The DSR format provides feedback to the base station about buffer status and timing requirements, enabling the base station to adjust resource allocation in real-time and optimize transmission timing to minimize latency
3Manufacturing precision
If existing BSR format is used, then ease of operation is maintained, but resource allocation accuracy deteriorates for XR services
Solution Approach 1:
The patent changes the parameters of the report format by adding timing information and priority indication fields, enabling accurate resource allocation for XR services while maintaining compatibility with existing operational frameworks
Data Source
AI summary
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. In certain configurations, the UE establishes a connection supporting an extended reality (XR) application service with a base station. The UE reports, to the base station, a delay status report (DSR) to indicate a buffer size for data to be transmitted to the base station. The DSR includes timing information. The UE receives a configuration instruction from the base station. The UE configures resources on the UE according to the configuration instruction to transmit the data to the base station.