Radio Resource Configuration Failure Reporting in 5G LTE-NR Interworking
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Solution Overview
Problem
In 5G communication systems with LTE-NR tight interworking, when a UE fails to configure radio resources, it triggers a resume procedure that interrupts data transmission and increases signaling load, complicating the process for both the UE and control plane signaling.
Innovation Solution
A method and apparatus for radio resource configuration in UE and network elements that allow timely reporting of failed radio resource configurations, avoiding the need for a resume procedure by separating the configuration and management of LTE and NR resources, thus preventing data transmission interruptions and reducing signaling load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE triggers a resume procedure when radio resource configuration fails, then the configuration failure can be reported to the network, but data transmission is interrupted and signaling load increases
Solution Approach 1:
The patent separates the failure reporting mechanism from the resume procedure by introducing a dedicated failure report message that can be sent independently. This segmentation allows the UE to report configuration failures without triggering a full resume procedure, thereby maintaining data transmission continuity while still providing reliable failure reporting to the network.
2Reliability
If the UE triggers a resume procedure when radio resource configuration fails, then the configuration failure can be reported to the network, but the complexity of the UE and control plane signaling increases
Solution Approach 1:
The patent extracts the failure reporting function from the complex resume procedure by creating a standalone failure report message mechanism. This extraction simplifies the UE and control plane signaling by handling failure reports separately from the resume process, reducing overall system complexity while maintaining reliable failure reporting.
3Adaptability or versatility
If LTE and NR resources are managed together, then tight interworking is achieved, but failure handling becomes more complex and affects both RATs
Solution Approach 1:
The patent segments the resource management approach by allowing independent failure reporting for each RAT (LTE and NR). This segmentation enables tight interworking between LTE and NR while simplifying failure handling, as each RAT's configuration failures can be reported and managed independently without affecting the other RAT's operations.
Data Source
AI summary
Disclosed are a radio resource configuration method and apparatus, a user equipment and a network element. The radio resource configuration method includes that: a user equipment (UE) receives a message of a radio resource configuration from a first signaling radio bearer (SRB) of a first radio access technology (RAT), where the message carries information of a first configuration, and the first configuration is a configuration of a radio resource of the first RAT; and when the UE fails to configure the radio resource of the first RAT according to the information of the first configuration, the UE sends a response message of the radio resource configuration to indicate that the radio resource configuration of the first RAT fails.