Enhancing SCG Failure Reporting for Conditional PSCell Change
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Solution Overview
Problem
Current SCG failure report mechanisms in telecommunication systems are insufficient for reporting detailed failure information during conditional PScell change (CPC) and conditional PScell addition (CPA) procedures, particularly in new radio (NR) networks, as they lack information on random access and do not effectively manage multiple CPA and CPC executions.
Innovation Solution
A method and device implementation that allows terminal devices to transmit detailed SCG failure information, including random access procedure details, to both secondary and master network devices, enabling enhanced data collection and network configuration adjustments, and facilitates the storage and management of failure information for improved network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the current SCG failure report mechanism is used, then the reporting process is simple, but the failure information is insufficient for CPC and CPA procedures
Solution Approach 1:
The failure information reporting is segmented into multiple components: basic failure type identification, detailed failure cause information, and random access procedure information. This segmentation allows the system to provide comprehensive failure data for CPC and CPA procedures while maintaining a structured and manageable reporting format that doesn't excessively increase complexity.
Solution Approach 2:
The terminal device is configured with CPC/CPA parameters and conditions in advance. When failures occur during these procedures, the device can immediately report detailed information including random access attempts and failure causes, because the reporting mechanism is already prepared and configured beforehand, reducing the complexity of ad-hoc information collection.
2Measurement precision
If detailed failure information including random access procedure is reported, then network analysis capability is improved, but signaling overhead increases
Solution Approach 1:
Detailed failure information including random access procedure details is reported selectively based on the specific failure scenario. The reporting mechanism provides local quality enhancement by focusing detailed measurement precision only where needed (during CPC/CPA procedures) rather than uniformly across all scenarios, thus improving failure analysis precision without excessively increasing overall signaling overhead.
Solution Approach 2:
The system implements partial reporting of failure information - only the necessary details relevant to CPC and CPA procedures are reported, such as random access attempt counts and specific failure causes. This partial action approach provides sufficient precision for network analysis while avoiding the excessive signaling overhead that would result from reporting all possible failure parameters.
3Adaptability or versatility
If multiple CPA and CPC executions are managed, then network configuration flexibility is improved, but management complexity increases
Solution Approach 1:
The network configuration for CPC and CPA procedures is made dynamic through the reporting mechanism. The system can adaptively adjust configuration parameters based on reported failure information from multiple execution attempts. This dynamic adjustment capability improves network configuration flexibility while the automated reporting and analysis process helps manage the complexity of handling multiple executions.
Solution Approach 2:
A feedback loop is established where failure information from multiple CPC and CPA executions is reported to the network, which then uses this information to optimize future configurations. The feedback mechanism allows the system to learn from previous attempts and adjust parameters accordingly, improving flexibility while the structured feedback process helps manage the complexity of multiple procedure executions.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises determining, at a terminal device, whether a first failure of a first access attempt to a first cell of a first network device occurs, the first network device being a secondary node serving the terminal device, a second network device being a master node serving the terminal device; and in accordance with a determination that the first failure occurs, transmitting at least first information about the first failure to the first network device or the second network device. In this way, a reporting of SCG failure information can be enhanced.