Dynamic Buffer Status Reporting Priority for Direct Communication
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Solution Overview
Problem
The fixed priority order between Buffer Status Reporting (BSR) of direct communication interface and Uu interface leads to transmission delays in direct communication interface services, as the terminal always preferentially sends the BSR of the Uu interface.
Innovation Solution
A method to dynamically determine the target BSR with higher priority between the first BSR and the second BSR based on the target logical channel, and send the target BSR, thereby ensuring the service quality of the corresponding communication interface service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal always preferentially sends the BSR of the Uu interface according to fixed priority order, then the Uu interface BSR transmission is ensured, but the transmission delay of the direct communication interface service is increased
Solution Approach 1:
The patent implements dynamic priority determination for BSR transmission by introducing a determination module that selects which BSR to send based on current system state. Instead of fixed priority ordering, the terminal dynamically determines whether to send Uu interface BSR or direct communication interface BSR by evaluating buffer status, resource availability, and service requirements in real-time, thereby resolving the contradiction between ensuring Uu interface reliability and reducing direct communication delay
Solution Approach 2:
The patent changes the priority parameter dynamically based on buffer status and resource conditions. The determination module evaluates parameters such as buffer occupancy levels, available uplink resources, and service QoS requirements to adjust the transmission priority of different BSR types, allowing the system to adapt between ensuring Uu interface reliability and minimizing direct communication delay depending on current conditions
2Reliability
If the terminal sends both BSR of direct communication interface and BSR of Uu interface simultaneously, then the service quality of both interfaces is improved, but the resource consumption and system complexity increase
Solution Approach 1:
The patent uses dynamic selection to determine which BSR to transmit based on current system conditions. The determination module evaluates whether to send direct communication BSR, Uu interface BSR, or both simultaneously by considering buffer status, resource availability, and service requirements, thereby maintaining service quality while avoiding unnecessary complexity from always sending both
Solution Approach 2:
The patent dynamically adjusts the transmission strategy by changing the selection parameter based on system state. When resources are abundant and both interfaces require service, the system sends both BSRs; when resources are constrained, it selectively sends only the higher priority BSR, thus maintaining service quality while reducing system complexity and resource consumption
Data Source
AI summary
A method of transmitting a buffer status reporting and a terminal are provided. The method includes: when triggering a first Buffer Status Reporting (BSR) and a second BSR, determining a target BSR with a higher priority between the first BSR and the second BSR according to a target logic channel; sending the target BSR; where the target logical channel includes a logical channel related to the first BSR and/or the second BSR, the first BSR is a BSR of a first communication interface, and the second BSR is a BSR of a second communication interface.