PSCell Candidate Cell Configuration for Intra- and Inter-SN CPC
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Solution Overview
Problem
The existing CPAC configuration method results in large quantities of overlapping candidate cells due to separate configuration for intra-SN and inter-SN CPC processes, limiting the number of configurable candidate cells and reducing coverage performance.
Innovation Solution
A method and apparatus that allows for configuring a single set of candidate cells that are available for both intra-SN and inter-SN CPC processes, reducing overlap and enabling more candidate cells to be used, thereby improving coverage performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate candidate cell configurations are provided for intra-SN CPC and inter-SN CPC processes, then each process has dedicated candidate cells, but the total quantity of candidate cells increases and causes overlap, limiting the number of configurable candidate cells
Solution Approach 1:
The patent applies universality by configuring a single set of candidate cells that can serve both intra-SN CPC and inter-SN CPC processes. Instead of maintaining separate dedicated candidate cell sets for each CPC type, the network device configures one unified set that both the source SN and target SN can utilize, allowing the same candidate cell to function in multiple CPC scenarios.
Solution Approach 2:
The patent merges the previously separate candidate cell configurations for intra-SN CPC and inter-SN CPC into a single unified configuration. The network device sends one set of candidate cell information to both the source SN and target SN, combining what were previously two distinct configuration processes into one, thereby eliminating redundancy and overlap.
2Adaptability or versatility
If overlapping candidate cells are configured in both intra-SN CPC and inter-SN CPC groups, then comprehensive coverage is provided, but the effective number of unique candidate cells decreases due to duplication
Solution Approach 1:
The unified candidate cell configuration enables universal applicability across both intra-SN and inter-SN CPC processes. The same candidate cell set is used regardless of whether the CPC is intra-SN or inter-SN, simplifying the configuration while maintaining comprehensive coverage capability through proper cell selection by the UE.
Solution Approach 2:
The patent extracts the redundant configuration aspect by removing the separate candidate cell sets for intra-SN and inter-SN CPC. By taking out the duplication and keeping only one unified configuration, the system reduces complexity while the UE's ability to select appropriate cells maintains the necessary adaptability for different CPC scenarios.
3Productivity
If a limited quantity of candidate cells is configured, then resource usage is optimized, but the coverage performance of subsequent CPAC is limited
Solution Approach 1:
By making the candidate cell configuration universal and applicable to both intra-SN and inter-SN CPC processes, the system maximizes the utility of each configured cell. The same limited set of candidate cells serves multiple purposes and multiple SNs, thereby optimizing resource utilization while maintaining coverage performance through efficient use of available cells.
Solution Approach 2:
Merging the candidate cell configurations eliminates the duplication that would otherwise waste limited cellular resources. The unified configuration ensures that each candidate cell is uniquely defined without redundant copies, allowing the limited quantity of configured cells to be used more efficiently across both CPC processes while maintaining adequate coverage.
Data Source
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AI summary
This application discloses a CPAC configuration method and apparatus, and a related product, and relates to the field of communications technologies. The CPAC configuration method in embodiments of this application includes: UE receives target configuration information sent by a network side device, where the target configuration information is used to configure at least one first candidate cell for subsequent CPAC, and the at least one first candidate cell is available for an intra-SN CPC process and an inter-SN CPC process; and the UE performs a first operation to change from a source primary secondary cell PSCell to a target PSCell, where the first operation includes at least one of the following: the intra-SN CPC process and the inter-SN CPC process, and the target PSCell is the first candidate cell of the at least one first candidate cell.