Terminal BWP Recording for LTE Access Troubleshooting
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Solution Overview
Problem
In LTE wireless networks, base stations struggle to perform troubleshooting based solely on failure information from camping cells, limiting the accuracy of troubleshooting processes.
Innovation Solution
A method and device that involve determining the bandwidth part (BWP) of a cell where a terminal camps, recording related information upon failed access attempts, and transmitting this information to a second base station for successful access, enabling more accurate troubleshooting by utilizing frequency domain location information and other relevant data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only failure information of a camping cell is reported, then the reporting process is simple, but the base station cannot perform effective troubleshooting
Solution Approach 1:
The failure information is segmented into multiple components: camping cell information, BWP information (including BWP-ID, frequency domain location, subcarrier spacing), and failure cause information. This segmentation allows comprehensive troubleshooting data to be collected and reported systematically, resolving the contradiction between simple reporting and effective troubleshooting.
Solution Approach 2:
The patent adds a new dimension of BWP information to the traditional camping cell failure information. By incorporating BWP-specific parameters (BWP-ID, frequency domain location, subcarrier spacing) as an additional layer of data, the system enables more precise troubleshooting without complicating the fundamental reporting mechanism.
2Measurement precision
If detailed BWP information is collected and reported, then troubleshooting accuracy is improved, but the complexity of the reporting process increases
Solution Approach 1:
The terminal pre-collects and stores BWP information (BWP-ID, frequency domain location, subcarrier spacing) before access failure occurs. This preliminary action ensures that when a failure happens, the detailed information is already prepared and can be immediately included in the failure report, improving accuracy without adding complexity to the failure reporting process itself.
Solution Approach 2:
The terminal autonomously identifies, collects, and reports its own BWP information along with failure information. This self-service approach eliminates the need for complex base station-side configurations or additional signaling procedures, maintaining reporting process simplicity while achieving high troubleshooting accuracy.
Data Source
AI summary
A method for troubleshooting is applied to the terminal and includes: determining a bandwidth part (BWP) of a current resident cell of the terminal, and accessing a first base station according to the BWP; recording related information of the BWP when the terminal fails to access the first base station; and sending the related information of the BWP to a second base station when the terminal successfully accesses the second base station, with the related information of the BWP being used for troubleshooting.