Cross-Node Buffer Status Reporting for Multi-Stream Aggregation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current buffer status reporting in multi-stream aggregation (MSA) systems only reports data destined for a single network node, failing to efficiently manage and balance traffic loads across multiple nodes, which limits data throughput and network performance.
Innovation Solution
Implementing a cross-node buffer status reporting mechanism that allows user equipment (UE) to transmit buffer status information to multiple network nodes within a single uplink allocation, enabling nodes to forward this information as needed to balance traffic loads and enhance data handling capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional single-node buffer status reporting is used, then the reporting mechanism is simple, but traffic load balancing across multiple nodes is inefficient
Solution Approach 1:
The patent combines buffer status reporting for multiple network nodes into a single unified reporting mechanism. The UE transmits buffer status information for both first and second network nodes through one uplink message to the first network node, which then forwards the appropriate information to the second network node. This merging approach maintains reporting simplicity while enabling efficient multi-node traffic load balancing.
Solution Approach 2:
The buffer status reporting mechanism is designed to serve multiple functions: it reports buffer status for the serving node (first network node) and simultaneously reports buffer status for non-serving nodes (second network node). This multi-functional approach allows a single reporting mechanism to handle both local scheduling decisions and inter-node traffic balancing, improving productivity without significantly increasing complexity.
2Productivity
If cross-node buffer status reporting is implemented, then traffic load balancing improves, but uplink transmission overhead increases
Solution Approach 1:
The patent extracts only the necessary buffer status information for forwarding to the second network node, rather than transmitting complete duplicate reports. The first network node receives the UE's buffer status report and selectively forwards only the relevant portion (buffer status for the second node) to that node, reducing redundant uplink transmission while maintaining effective traffic load balancing.
3Measurement precision
If buffer status is reported to each node separately, then each node has accurate local information, but latency increases due to multiple transmission opportunities
Solution Approach 1:
The patent implements preliminary action by having the UE report buffer status for all network nodes simultaneously in advance, rather than waiting for separate scheduling opportunities. The first network node receives this comprehensive report and proactively forwards the relevant information to the second network node, ensuring both nodes have accurate buffer status information without incurring additional latency from sequential reporting.
Data Source
AI summary
Embodiments are provided herein for enabling buffer status reporting for Multi-stream aggregation (MSA) in wireless networks. In an embodiment, a user equipment (UE) receives from a network, a configuration regarding one of enabling and disabling cross-node buffer status reporting. The UE further receives a first uplink grant from a first network node, and obtains a buffer status intended for a second network node. Upon enabling cross-node buffer status reporting according to the configuration, the UE transmits, in the first uplink grant to the first network node, the buffer status intended for the second network node. The first network node receives, from the UE, the buffer status intended for the second network node, and determines whether to forward the buffer status to the second network node according to the configuration regarding buffer status forwarding previously received at the first network node.