Wireless Communication Node PSCell Change Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing wireless communication protocols face challenges in managing seamless and efficient Primary SCell (PSCell) changes, particularly in Frequency Range 2 (FR2) environments where PSCell changes are more frequent, leading to increased delay and signaling overhead due to the lack of continuous configuration and accurate triggering conditions.
Innovation Solution
A method is introduced where a node receives signaling indicating a condition set with multiple triggering conditions, disconnects from a serving cell, and applies a candidate configuration for a new SCell upon satisfying a triggering condition, ensuring continuous PSCell changes without premature deletion of configurations, thus reducing latency and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the base station configures candidate cells and deletes configuration information after successful access, then signaling overhead is reduced, but successive PSCell changes cannot be performed without reconfiguration
Solution Approach 1:
The base station pre-configures multiple candidate PSCells with their respective execution conditions and candidate configurations in advance. These configurations are stored in the UE and can be activated without additional signaling when their triggering conditions are met, enabling successive PSCell changes without reconfiguration overhead.
Solution Approach 2:
The condition set is divided into multiple condition subsets, each associated with a specific candidate cell. Each condition subset contains triggering conditions that must be satisfied for that particular candidate cell to become the new PSCell. This segmentation allows the UE to independently evaluate and switch to different candidate cells based on their respective conditions.
2Productivity
If configuration information is deleted after successful PSCell change, then system resources are freed, but delay increases for subsequent changes
Solution Approach 1:
Candidate configurations are prepared and stored in advance in the UE's memory. When a triggering condition is satisfied, the UE can immediately apply the pre-configured candidate configuration without waiting for new configuration signaling, thereby reducing PSCell change delay while maintaining system resource efficiency.
3Measurement precision
If all triggering conditions in a condition set must be satisfied, then configuration accuracy is improved, but response time increases
Solution Approach 1:
The condition set is segmented into multiple condition subsets, where each subset is associated with a specific candidate cell. The UE evaluates conditions subset by subset, and can trigger a PSCell change as soon as the conditions for a particular candidate cell are satisfied, without waiting for all conditions in the entire condition set to be met. This maintains configuration accuracy while improving response speed.
Solution Approach 2:
Instead of requiring all conditions in the complete condition set to be satisfied before any change, the system allows partial action by enabling changes when conditions for specific candidate cells are met. This partial evaluation approach reduces response time while maintaining sufficient accuracy for appropriate cell selection.
Data Source
AI summary
The present application discloses a method and a device in a communication node for wireless communications. The communication node receives a first signaling, the first signaling indicating a first condition set, the first condition set including multiple triggering conditions; and as a response to a first triggering condition being satisfied, disconnects from a first serving cell and applies a first candidate configuration, the first candidate configuration including configuration information for a second serving cell, the first serving cell and the second serving cell each being a SpCell; the first triggering condition being satisfied occurs after receiving the first signaling, the first triggering condition is a triggering condition in a first condition subset, and the first condition subset is a proper subset of the first condition set; the first condition subset is related to the first serving cell.