Buffer Status Report Format Selection in Wireless Uplink
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in data configuration and resource allocation during uplink transmission, particularly in allocating resources for buffer status reporting, which affects data processing speed and resource utilization.
Innovation Solution
A method and device for user equipment (UE) in a wireless communication system that determines a format for buffer status reports based on logical channel groups, allocates transmission resources, and re-determines the format after allocation, ensuring efficient data configuration and resource utilization by prioritizing logical channels and segmenting or padding data as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed format for buffer status report is used, then the device complexity is reduced, but the resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic format determination for buffer status reports by allowing the UE to select between short and long formats based on real-time buffer status conditions. The format selection is not fixed but adapts according to the actual data volume and transmission requirements, resolving the contradiction between device complexity and resource utilization efficiency.
Solution Approach 2:
The patent changes the parameter of buffer status report format (short or long) based on buffer status conditions. When buffer status indicates small data volume, short format is used; when large data volume is detected, long format is selected. This parameter change approach optimizes resource utilization without significantly increasing device complexity.
2Productivity
If transmission resources are allocated before determining BSR format, then the data processing speed is improved, but the resource allocation accuracy deteriorates
Solution Approach 1:
The patent performs preliminary determination of the buffer status report format based on initial buffer status assessment before finalizing transmission resource allocation. This preliminary action allows the system to prepare the appropriate format in advance, improving data processing speed while maintaining allocation accuracy through subsequent refinement based on actual resource availability.
Solution Approach 2:
The patent implements a feedback mechanism where the buffer status report format determination is refined based on the actual transmission resources allocated. The system initially determines format based on buffer status, then adjusts the format selection based on feedback from resource allocation results, ensuring both fast processing and accurate resource utilization.
3Adaptability or versatility
If multiple BSR formats are supported, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the buffer status reporting into two distinct formats: short BSR for small data volumes and long BSR for large data volumes. Each format has clearly defined structure and usage conditions, making the complexity manageable through segmentation rather than requiring a single complex adaptive format.
Solution Approach 2:
The patent applies different format qualities locally based on buffer status conditions. Short format is used locally when buffer status indicates small data, while long format is used locally when large data is detected. This local quality approach provides adaptability without requiring the device to handle all format variations simultaneously, reducing overall complexity.
Data Source
AI summary
Provided is a method, performed by a user equipment (UE), of processing data in a wireless communication system, the method including: determining a format for buffer status report based on a buffer status of each of logical channel groups when the UE receiving an uplink transmission resource from a base station determines to report the buffer status to the base station; allocating, to each of the logical channel groups, a transmission resource remaining after excluding, from the uplink transmission resource, a transmission resource used for reporting the buffer status of the determined format; and re-determining the format for the buffer status report based on the buffer status of each of the logical channel groups after the allocating.