Unified PSCell Candidate Configuration for Seamless CPC Switching
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Solution Overview
Problem
Current communication technologies separately configure candidate cells for intra-secondary node and inter-secondary node conditional primary secondary cell changes, limiting the flexibility and efficiency of subsequent conditional primary secondary cell addition or change processes.
Innovation Solution
A unified configuration method and apparatus that enables user equipment to perform both intra-SN and inter-SN CPC processes using a single set of candidate cells, allowing for efficient switching between source and target PSCells without requiring network reconfiguration in between.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If candidate cells are configured separately for intra-SN and inter-SN CPC processes, then the configuration process is simple and clear, but the flexibility and efficiency of subsequent CPAC process is limited
Solution Approach 1:
The patent merges the configuration of candidate cells for intra-SN and inter-SN CPC processes into a single unified configuration. The network side device configures a single set of candidate cells that can be used for both intra-SN and inter-SN CPAC processes, eliminating the need for separate configuration sets. This reduces configuration complexity while enhancing flexibility and adaptability.
Solution Approach 2:
The unified candidate cell configuration serves multiple functions: it can be used for both intra-SN and inter-SN CPAC processes. The same candidate cells configured in a single step can support different types of PSCell changes depending on the execution conditions, making the configuration system universal and multi-functional.
2Reliability
If separate candidate cell configurations are used for intra-SN and inter-SN CPC, then configuration clarity is maintained, but data packet loss increases due to redundant reconfiguration
Solution Approach 1:
The network side device performs preliminary configuration of candidate cells in a single step, preparing both intra-SN and inter-SN candidate cells ahead of time. This preliminary action eliminates the need for redundant reconfiguration operations during actual PSCell changes, as the required candidate cells are already configured and ready to use.
Solution Approach 2:
The unified configuration enables continuous and seamless PSCell changes without interruption. By maintaining a single active configuration that supports both intra-SN and inter-SN processes, the system avoids the discontinuities and packet loss that would occur during redundant reconfiguration operations.
3Productivity
If two groups of candidate cells are configured for CPAC process, then the CPAC process can support both intra-SN and inter-SN changes, but the configuration efficiency and speed are reduced
Solution Approach 1:
The patent combines the configuration of two separate candidate cell groups into a single unified configuration step. The network side device configures one set of candidate cells that serves both intra-SN and inter-SN CPAC processes, reducing the time and resources required for configuration while maintaining full functionality.
Solution Approach 2:
The system performs preliminary configuration of the unified candidate cell set in advance, preparing all necessary configurations before actual PSCell changes are needed. This preliminary action eliminates the need for time-consuming reconfiguration operations during execution, significantly improving configuration efficiency.
Data Source
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.


