Buffer Status Reporting Across Multiple Radio Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing buffer status reporting (BSR) processes in multiple connectivity configurations with a plurality of radio links do not work optimally or efficiently, leading to sub-optimal scheduling and resource allocation.
Innovation Solution
A method where a user device with multiple radio links determines changes in uplink data availability on one radio link and triggers a buffer status report on another radio link, allowing for optimized uplink scheduling and resource allocation across multiple connectivity configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user device sends buffer status reports for every change in uplink data on each radio link, then the network can maintain accurate scheduling information, but the signaling overhead and resource consumption increase significantly
Solution Approach 1:
The patent combines buffer status information from multiple radio links into a single aggregated BSR message. Instead of sending separate BSRs for each radio link, the device merges the buffer status data and transmits it once, reducing signaling overhead while maintaining comprehensive buffer status reporting across all radio links.
Solution Approach 2:
The patent creates a universal BSR mechanism that handles buffer status reporting for multiple radio links simultaneously. A single BSR process serves the function of reporting buffer status across all radio links, making the reporting mechanism multi-functional and efficient.
2Productivity
If a user device triggers buffer status reports frequently to maintain accurate scheduling, then the network can optimize resource allocation, but the processing overhead and system complexity increase
Solution Approach 1:
The patent merges the trigger conditions and reporting processes for multiple radio links into a unified BSR management system. By combining the buffer status monitoring and reporting triggers across all radio links, the device reduces the number of independent BSR management processes while maintaining scheduling efficiency.
3Loss of information
If a user device reports buffer status for all radio links simultaneously, then the network receives complete scheduling information, but the message size and transmission time increase
Solution Approach 1:
The patent merges buffer status information from multiple radio links into a single consolidated BSR message. This approach maintains complete scheduling information across all radio links while reducing the total transmission time by sending one aggregated message instead of multiple separate messages.
Solution Approach 2:
The patent designs a universal BSR message structure that can carry buffer status information for multiple radio links simultaneously. This multi-functional message format allows complete information reporting without proportionally increasing transmission time.
Data Source
AI summary
A method performed by a user device having a multiple connectivity configuration with a plurality of radio links to a plurality of network nodes in a radio communication network is provided. The user device can determine a change occurred in an amount of uplink data available for transmission in a first uplink buffer of the user device on a first radio link of a plurality of radio link to first network node. Responsive to the change, the user device can trigger a buffer status report for transmission to a second network node of the plurality of network nodes on a second radio link of the plurality of radio links for which a change in an amount of uplink data available for transmission in a second uplink buffer was not determined. A method performed by the first network node is also provided.