UE Buffer Status Reporting Format Selection for Accurate Uplink Scheduling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing BSR formats in user equipment (UE) lack the ability to accurately report uplink data volume and introduce delay information, leading to quantization errors and increased overheads, which complicates network scheduling.

Innovation Solution

A method for determining a target BSR format from a first and second BSR format based on specific information, where the second format includes higher quantization accuracy for buffer data volume information and/or delay information, allowing UE to select the appropriate format for reporting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the first BSR format is used for reporting, then the overhead is reduced, but the quantization accuracy of buffer data volume information is lower

Engineering Contradiction:
Improvequantization accuracy of buffer data volume informationVSAvoidBSR overhead
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent implements dynamic BSR format selection where the UE can switch between the first BSR format (lower overhead) and the second BSR format (higher accuracy) based on current buffer status and network conditions. This dynamic adaptation allows the system to optimize between overhead reduction and measurement precision in different operational scenarios, resolving the contradiction by making the format choice flexible rather than fixed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of BSR format selection based on buffer status thresholds and network conditions. When the buffer status indicates high priority or specific conditions are met, the system transitions to the second BSR format with higher quantization accuracy; otherwise, it uses the first BSR format with lower overhead. This parameter-based adaptation resolves the contradiction by adjusting the reporting format according to actual needs.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the second BSR format is used for reporting, then the quantization accuracy of buffer data volume information is improved, but the overhead increases

Engineering Contradiction:
Improvequantization accuracy of buffer data volume informationVSAvoidBSR format complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the BSR reporting into two distinct formats with different characteristics. The first BSR format is used for常规 scenarios where lower complexity is acceptable, while the second BSR format is reserved for specific scenarios requiring higher precision. This segmentation allows the system to manage complexity by only employing the more complex format when necessary, rather than always using it.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies the second BSR format with higher accuracy only partially - specifically when buffer status thresholds are exceeded or certain network conditions are met - rather than continuously. This partial application of the higher-accuracy format reduces the overall complexity burden while maintaining precision when it is actually needed, resolving the contradiction between accuracy improvement and complexity increase.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If delay information is included in BSR reporting, then the network scheduling efficiency is improved, but the BSR overhead increases

Engineering Contradiction:
Improvenetwork scheduling efficiencyVSAvoidBSR overhead
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent dynamically controls the inclusion of delay information in BSR reports based on network conditions and buffer status. When delay sensitivity is high or specific triggering conditions are met, delay information is included to improve scheduling efficiency; otherwise, it is omitted to reduce overhead. This dynamic approach resolves the contradiction by making delay information inclusion conditional rather than universal.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the BSR content parameters (whether to include delay information) based on network scheduling requirements and buffer status characteristics. By adjusting this parameter according to actual needs, the system achieves high scheduling efficiency when delay information is relevant while minimizing overhead when it is not, thus resolving the contradiction between productivity improvement and overhead increase.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20260089551A1Format Determining Method, User Equipment (UE), and Non-Transitory Readable Storage Medium
Publication Date: 2026.03.26 VIVO MOBILE COMM CO LTD
  • US20260089551A1 patent drawing
  • US20260089551A1 patent drawing
  • US20260089551A1 patent drawing

AI summary

A format determining method, which includes determining, by a user equipment (UE), a target buffer status report (BSR) format from a first BSR format and a second BSR format based on first information, where the target BSR format is used for BSR reporting. A BSR in the first BSR format includes first buffer data volume information, and a BSR in the second BSR format includes delay information and/or second buffer data volume information about a time for reporting uplink data of the UE, where quantization accuracy of the second buffer data volume information is higher than quantization accuracy of the first buffer data volume information.