LTE Neighboring Cell List Update via UE Reporting
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Solution Overview
Problem
Current 5G systems face challenges in maintaining accurate neighboring cell lists, particularly in distinguishing between standalone (SA) and non-standalone (NSA) 5G cells, which affects handover success rates and interworking modes between LTE and NR networks.
Innovation Solution
User Equipment (UE) reports missing neighboring cells with SA or NSA indications and identification information to the network side, enabling the LTE system to update neighboring cell lists and improve handover success rates and interworking configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the LTE neighboring cell list is maintained using current methods, then the existing neighbor relationships are preserved, but 5G system cells (both NSA and SA) are missing from the list and cannot be properly distinguished
Solution Approach 1:
The UE provides feedback to the network device by reporting measurement results that include identification information of detected 5G cells and their NSA/SA attributes. This feedback mechanism enables the network device to update the neighboring cell list with accurate 5G cell information that was previously missing.
Solution Approach 2:
The UE autonomously detects 5G cells, determines whether they are NSA or SA cells based on received signals, and reports this information to the network device. This self-service capability allows the system to automatically maintain up-to-date neighboring cell information without manual intervention.
2Reliability
If the UE reports all detected 5G cells, then the neighboring cell list becomes complete, but the complexity of information processing and reporting increases
Solution Approach 1:
The reporting mechanism is segmented by cell type (NSA vs. SA). The UE identifies and reports 5G cells based on their specific attributes, allowing the network device to process and categorize the information systematically. This segmentation reduces the complexity of handling heterogeneous cell information.
Solution Approach 2:
The UE changes the reporting parameters based on the detected cell type, reporting specific identification information and NSA/SA attributes for 5G cells. This parameter-based reporting approach allows efficient differentiation and processing of various cell types without requiring complex reporting structures.
3Reliability
If the network device manually updates the neighboring cell list, then accuracy can be maintained, but the time and resources required for maintenance increase significantly
Solution Approach 1:
The system enables automated self-updating of the neighboring cell list through UE measurements and reports. The UE continuously monitors for 5G cells and automatically reports new detections to the network device, which then updates the list without manual intervention. This eliminates the time-consuming manual maintenance process while maintaining high accuracy.
Solution Approach 2:
The UE performs continuous measurements and reporting of 5G cell information, ensuring the neighboring cell list is continuously updated with the latest data. This continuous action maintains the accuracy and currency of the neighbor relationship information without requiring periodic manual updates.
Data Source
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AI summary
Disclosed are a method for configuring a neighboring cell, a network device, a user equipment and a computer storage medium. The method comprises: receiving reporting information, sent by a user equipment (UE), of a target cell corresponding to a measurement frequency point, the reporting information of the target cell at least containing identity information and attribute information of an NSA cell and/or an SA cell, the NSA cell and/or the SA cell both being cells not in a neighbouring cell list of an LTE cell, the LTE cell being a cell managed by a network device; on the basis of the report information, adding the corresponding identity information and attribute information of the NSA cell and/or the SA cell to the neighboring cell list.