Transport Node Link Status Feedback for RAN Nodes
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Solution Overview
Problem
In mobile communication systems, radio equipment often unnecessarily restarts or triggers recovery procedures due to unawareness of the transport link status between baseband units (BBUs) and remote radio units (RRUs), leading to inefficiencies and delayed detection of actual failures.
Innovation Solution
Implementing a method where transport nodes determine the status of the transport network connection and generate messages indicating this status, which are then transmitted to RAN nodes, allowing them to detect the connection status and avoid unnecessary actions, enabling automated configuration at appropriate times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio equipment automatically restarts or triggers O&M recovery procedures when link status is unknown, then the system attempts to recover from potential failures, but unnecessary restarts occur and actual failures are delayed
Solution Approach 1:
The patent implements a feedback mechanism where the transport network sends link status information to radio equipment. This allows the radio equipment to make informed decisions about whether to restart or trigger recovery procedures, eliminating unnecessary actions and enabling timely response to actual failures through continuous status monitoring and feedback loops.
Solution Approach 2:
The patent establishes preliminary action by having the transport network proactively provide link status information to radio equipment before failures occur. This advance information allows the system to prepare appropriate responses and avoid unnecessary restarts, while being ready to act quickly when actual failures are detected.
2Productivity
If automated configuration mechanisms are implemented, then configuration time and cost are reduced, but setup time during which connection cannot be used increases
Solution Approach 1:
The patent applies preliminary action by performing automated configuration of the transport network connection before service activation. The link status monitoring mechanism allows the system to complete configuration procedures in advance and immediately notify radio equipment when the connection is ready, minimizing the time the connection is unavailable for data exchange.
Solution Approach 2:
The patent implements self-service through automated configuration mechanisms that configure transport network connections without manual intervention. The system automatically monitors link status, triggers configuration when needed, and notifies radio equipment, eliminating the need for operator involvement and reducing both configuration time and cost.
3Device complexity
If transport network status information is not provided to RAN nodes, then the system operates with simpler architecture, but RAN nodes cannot detect connection status and take unnecessary actions
Solution Approach 1:
The patent introduces an intermediary mechanism where the transport network acts as a mediator by actively providing link status information to radio equipment. This intermediary role allows the system to maintain relatively simple architecture while enabling radio equipment to make informed operational decisions based on actual connection status, improving reliability without significant complexity increase.
Data Source
AI summary
Methods and apparatuses for mobile communication systems are disclosed. According to an embodiment, there is provided a method in a mobile communication system having a radio access network, RAN, the radio access network having a first RAN node and a second RAN node connected by a transport network, the transport network having a first transport node and a second transport node, wherein the first RAN node is connected to the first transport node and the second RAN node is connected to the second transport node. The method includes, by the first transport node: determining the status of a transport network connection between the first transport node and the second transport node, generating a message indicating the status of the transport network connection, and initiating transmission of the message to the first RAN node.