Separate Buffer Status Report for Logical Channel Groups
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Solution Overview
Problem
Current buffer status report (BSR) processing methods are inefficient for determining the uplink buffer data amount for logical channels or logical channel groups, leading to inaccurate resource scheduling, particularly in ultra-reliable and low latency communication scenarios.
Innovation Solution
The method involves a network device sending separate-BSR reporting indication information to a terminal device, which then reports a separate BSR indicating uplink buffer data amount information for specific logical channels or logical channel groups, allowing for more precise resource scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a terminal device reports a BSR in a corresponding format based on a type of BSR that the base station triggers, then the base station can schedule a resource for the terminal device, but the processing is poorly time-efficient and inapplicable to ultra-reliable and low latency communication
Solution Approach 1:
The patent segments the BSR reporting process by introducing separate BSR reporting for different logical channel groups. Instead of processing all logical channels together in a single BSR report, the system divides them into multiple groups and allows independent reporting for each group, thereby reducing processing time and improving efficiency for time-critical communications.
2Loss of information
If the terminal device chooses to report a long BSR when multiple logical channel groups include to-be-reported data, then comprehensive buffer status information is provided, but the reporting overhead increases and processing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing logical channel groups into separate reportable units. This allows the system to report buffer status information for specific groups independently, providing comprehensive information when needed while avoiding the complexity of reporting all groups in a single long BSR format.
Solution Approach 2:
The patent implements partial reporting by allowing the terminal device to report BSR information for only certain logical channel groups based on specific conditions or network requirements, rather than always reporting all groups. This reduces reporting overhead and processing complexity while maintaining information completeness for critical channels.
3Measurement precision
If the terminal device determines the logical channel group to which the logical channel belongs when determining the amount range of data, then the BSR table can be searched, but the processing is poorly time-efficient
Solution Approach 1:
The patent improves time efficiency by segmenting the processing into two steps: first determining the logical channel group, then searching the BSR table. This segmented approach allows for optimized processing where the group determination can be done quickly using predefined rules, and the BSR table search can be performed on a smaller, more manageable dataset corresponding to the specific group.
Data Source
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AI summary
A buffer status report processing method and an apparatus are disclosed. A network device determines a logical channel or a logical channel group for which a separate buffer status report BSR needs to be reported, and sends separate-BSR reporting indication information. A terminal device receives the separate-BSR reporting indication information sent by the network device, and reports the separate BSR for the logical channel or the logical channel group indicated in the separate-BSR reporting indication information. The network device receives the separate BSR reported by the terminal device, and determines, based on the separate BSR, uplink buffer data amount information corresponding to the logical channel or the logical channel group. According to the BSR processing method, resource scheduling accuracy of the network device is improved.