Buffer Status Reporting With Threshold-Based Logical Channel Priority
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Solution Overview
Problem
The challenge in wireless communication systems is efficiently managing limited radio resources to transmit uplink/downlink data and control information while addressing latency issues, particularly in applications that are delay-sensitive.
Innovation Solution
A method and apparatus for transmitting Buffer Size (BS) information using a wireless node configured with multiple logical channels, where a buffer status report (BSR) is generated and transmitted based on threshold conditions, prioritizing certain logical channels to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the BSR includes BS information for both first logical channel and second logical channel, then the completeness of buffer status reporting is improved, but the transmission overhead and resource consumption increase
Solution Approach 1:
The patent extracts only the necessary BS information for the first logical channel when its buffer size meets the threshold condition, omitting redundant information from the second logical channel. This selective extraction reduces transmission overhead while maintaining essential buffer status reporting functionality.
Solution Approach 2:
The patent applies partial action by including BS information only for logical channels that meet specific threshold conditions, rather than reporting all logical channels unconditionally. This partial reporting approach reduces overall transmission overhead while ensuring critical buffer status information is conveyed.
2Productivity
If the BSR includes BS information for first logical channel when its buffer size is large, then the priority data transmission is improved, but the complexity of threshold-based decision making increases
Solution Approach 1:
The patent introduces buffer size threshold parameters to control BSR information inclusion decisions. By comparing actual buffer sizes against predefined thresholds, the system automatically adjusts reporting behavior, improving priority data transmission efficiency through parameter-driven decision making.
Solution Approach 2:
The patent implements dynamic BSR reporting behavior that adapts based on real-time buffer size conditions. When the first logical channel's buffer size exceeds the threshold, the system dynamically includes its BS information; otherwise, it excludes it, creating a flexible and adaptive reporting mechanism.
3Measurement precision
If multiple logical channels are configured with separate thresholds, then the precision of buffer status reporting is improved, but the configuration complexity and number of parameters increase
Solution Approach 1:
The patent assigns different threshold parameters to different logical channels based on their specific requirements. The first logical channel has its own threshold (first threshold) while the second logical channel has a different threshold (second threshold), allowing customized reporting precision for each channel's characteristics.
Data Source
AI summary
The present disclosure relates to a method of transmitting a buffer status report (BSR) by a wireless node configured with a first logical channel and a second logical channel in a wireless communication system. Especially, the method includes the steps of generating at least one of an uplink data related to the first logical channel and an uplink data related to the second logical channel; triggering the BSR; and transmitting the BSR including at least one of buffer size (BS) information related to the first logical channel and the BS information related to the second logical channel to a peer wireless node, wherein, based on the BS of the first logical channel being equal to or larger than the threshold, the BSR includes the BS information related to the first logical channel without the BS information related to the second logical channel.