Uplink Buffer Status Reporting After Data Discard Events
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Solution Overview
Problem
Terminal devices reporting buffer status reports (BSR) before discarding uplink data can lead to redundant resource allocation, causing resource waste due to changes in buffered data volume and residual delay.
Innovation Solution
Implementing a method where terminal devices generate a first report with the latest uplink data volume and residual delay, cancel triggered reports upon data discard, and re-evaluate and re-trigger reports as necessary to ensure accurate reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device reports buffer status before discarding uplink data, then the network device can schedule uplink resources, but the terminal device may report redundant buffer volume causing resource waste
Solution Approach 1:
The terminal device determines the latest uplink data volume and residual delay at specific moments (when resource is determined, when resource arrives, or when update indication information is obtained) before actually reporting. This preliminary determination ensures the report reflects the most current buffer status, preventing redundant resource allocation while maintaining reporting reliability.
Solution Approach 2:
The terminal device uses update indication information as feedback to trigger re-determination of the latest uplink data volume and residual delay. When update indication information is obtained, the terminal device re-determines the buffer status and may re-trigger the report, ensuring continuous accuracy of the reported information and preventing resource waste due to outdated reports.
2Measurement precision
If the terminal device determines latest uplink data volume at multiple moments, then report accuracy is improved, but device complexity increases
Solution Approach 1:
The terminal device uses a unified determination mechanism that can operate at multiple different moments (when resource is determined, when resource arrives, when update indication information is obtained). This multi-functional approach allows the same basic mechanism to serve multiple reporting scenarios, improving measurement accuracy without proportionally increasing complexity.
Solution Approach 2:
The terminal device dynamically adjusts the determination timing based on actual network conditions and trigger events. The mechanism transitions from static fixed-time reporting to dynamic event-driven reporting, where the determination moment adapts to resource allocation events, data discard events, and update indication events, optimizing accuracy without rigid complexity.
Data Source
AI summary
Embodiments of this application provide an information processing method and apparatus. The method includes: generating or transmitting a first report, where the first report includes a latest first uplink data volume, and/or includes a latest first residual delay of uplink data. In this application, the first report is set to include the first uplink data volume and/or the first residual delay of uplink data in a latest state, so that it may be ensured that even if the uplink data is discarded, the first report also includes related information of the discarded uplink data.