Dual Communication Processor RACH Failure Management
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Solution Overview
Problem
User equipment (UE) in 5G NSA systems experiences frequent failures in random access channel (RACH) procedures with secondary nodes, leading to resource and power wastage due to continuous attempts to establish connections with nodes having high failure probabilities.
Innovation Solution
An electronic device with dual communication processors adjusts report conditions based on connection failure identification, transferring measurement information only when specific threshold conditions are met, thereby optimizing resource usage and reducing unnecessary RACH attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE continuously attempts to establish connection with secondary nodes based on B1 event detection, then connection establishment frequency increases, but resource and power wastage increases due to high failure probability
Solution Approach 1:
The UE feeds back measurement information to the master node when connection failure is detected, enabling the network to adjust report conditions based on actual connection outcomes. This feedback mechanism prevents continuous futile connection attempts by informing the network of high-failure nodes, thereby reducing power wastage while maintaining connection establishment productivity.
Solution Approach 2:
The system dynamically changes report conditions (threshold values, event types) based on connection failure history and measurement information. When connection failures occur, the master node adjusts the report conditions to be more stringent, changing parameters like threshold values to prevent repeated attempts on high-failure nodes, thus reducing power consumption while maintaining effective connection establishment rate.
2Productivity
If the UE reports measurement information frequently based on first report condition, then measurement reporting frequency increases, but unnecessary RACH attempts increase leading to resource wastage
Solution Approach 1:
The report conditions are made dynamic rather than static. The master node adjusts report conditions based on connection failure outcomes and measurement information. When connection failures occur, the system dynamically modifies threshold values and event types to reduce unnecessary reporting, thereby conserving resources while maintaining necessary measurement reporting productivity for successful connections.
3Loss of energy
If the UE adjusts report condition based on connection failure identification, then resource usage optimization improves, but system complexity increases
Solution Approach 1:
The master node acts as an intermediary that manages the complexity of report condition adjustment. Instead of the UE independently managing complex adjustment logic, the UE reports measurement information and connection failure status to the master node, which then adjusts report conditions centrally. This distributes complexity to the network side, reducing UE device complexity while maintaining resource usage efficiency through intelligent adjustment.
Data Source
AI summary
An electronic device is provided. The electronic device includes a first communication processor and a second communication processor, the second communication processor is configured to receive, from the first communication processor, a first report condition for measurement information for a signal from at least one which corresponds to a second network communication, identify a second report condition which corresponds to connection failure of the electronic device to a first base station corresponding to the second network communication, and transfer the first measurement information to the first communication processor, and the first communication processor is configured to transmit, to a base station corresponding to a first network communication, the first measurement information received from the second communication processor.