Shared Cell Uplink Counter Monitoring for O-RAN Fronthaul Nodes
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Solution Overview
Problem
The challenge lies in effectively checking communication performance in a fronthaul configuration with shared cells while optimizing resource usage in O-RAN environments, particularly in identifying and addressing issues with packet handling and counter management across multiple south nodes.
Innovation Solution
A method and apparatus are introduced to monitor communication performance by receiving and processing uplink counter values and packet information from multiple south nodes, identifying packets to be combined or dropped based on destination MAC/IP addresses and eAxC IDs, and determining missing packets through counter value analysis, thereby ensuring efficient packet handling and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple south nodes are configured in a shared cell to improve communication capacity, then the communication performance is improved, but the complexity of monitoring and managing counter values from each node increases
Solution Approach 1:
The patent combines counter values from multiple south nodes by adding them together to generate a combined counter value. This merging approach simplifies monitoring by aggregating data from multiple sources into a single manageable metric that reflects overall communication performance across all south nodes in the shared cell.
Solution Approach 2:
The combined counter value serves multiple functions: it monitors individual node performance, detects missing packets, identifies performance degradation, and provides overall system health status. This universal metric enables a single monitoring mechanism to handle multiple aspects of performance management across all south nodes.
2Measurement precision
If counter values from all south nodes are monitored individually to improve measurement precision, then the measurement accuracy is improved, but the loss of time for data collection and processing increases
Solution Approach 1:
Each south node pre-calculates and maintains its own counter values locally, ready for immediate reporting. When the north node requests counter information, the data is already prepared and can be transmitted without delay, eliminating the need for time-consuming on-demand collection from each node.
Solution Approach 2:
The north node combines counter values from multiple south nodes into a single aggregated metric. This combining process reduces the total amount of data that needs to be processed and analyzed, thereby reducing the time required to collect and interpret counter information from all nodes.
3Loss of energy
If packets are combined from multiple south nodes to improve resource utilization, then the resource efficiency is improved, but the difficulty of detecting and measuring packet issues increases
Solution Approach 1:
The system implements feedback mechanisms where the north node monitors combined counter values and compares them against expected values. When discrepancies are detected, the system can trace back to identify which specific south node or nodes are experiencing packet loss or issues, enabling effective detection despite the combining operation.
Solution Approach 2:
While packets are combined for efficient transmission, the counter monitoring system segments the analysis by tracking contributions from each individual south node. This segmentation allows the system to identify which specific node is causing packet loss or performance degradation, even though the actual packet data is combined and transmitted together.
Data Source
AI summary
According to an embodiment of the present disclosure, a method performed by a middle node in a communication system includes: receiving a configuration message including information related to a message to be combined in a shared cell from a north node; receiving user plane messages from a plurality of south nodes included in the shared cell, respectively; identifying packets to be combined from among respective packets included in the received user plane messages based on the information related to the message to be combined in the shared cell; and determining respective uplink counter values for the plurality of south nodes by counting the identified packets to be combined.