Multi-Cell Measurement for Conditional PSCell Addition and Change
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing conditional PSCell addition and change processes, particularly in multi-connectivity scenarios, due to suboptimal measurement event configurations and lack of dynamic decision-making by wireless transmit/receive units (WTRUs).
Innovation Solution
Implementing a method for WTRUs to configure measurement events considering multiple candidate and serving cells, with conditional PSCell Addition/Change (CPAC) using measurement conditions that depend on WTRU factors, allowing the WTRU to determine the number of secondary nodes to add or change based on configured conditions, and manage SN release within a defined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If measurement events are configured to consider multiple candidate and serving cells with dynamic conditions, then the adaptability and efficiency of PSCell addition/change processes are improved, but the device complexity and measurement processing burden increase
Solution Approach 1:
The measurement configuration is segmented into multiple independent measurement objects, each associated with specific candidate cells or serving cells. The WTRU can independently evaluate measurement results for each object against corresponding thresholds, reducing the complexity of processing multiple cells simultaneously while maintaining adaptability.
Solution Approach 2:
The measurement configuration includes dynamic thresholds and conditions that can be adjusted based on WTRU-specific factors such as mobility state, service requirements, and current radio conditions. This allows the system to adapt to changing environments without requiring complete reconfiguration, balancing adaptability with processing efficiency.
2Reliability
If the WTRU determines the number of secondary nodes to add based on multiple factors, then the optimization of network performance is improved, but the decision-making complexity and processing time increase
Solution Approach 1:
The network pre-configures measurement objects, thresholds, and evaluation criteria before the WTRU needs to make CPAC decisions. This preliminary setup includes defining multiple candidate cells and their associated measurement parameters, allowing the WTRU to quickly evaluate current conditions against pre-established criteria without complex real-time analysis.
Solution Approach 2:
The system implements feedback mechanisms where measurement results are continuously monitored and compared against thresholds. When conditions are met, the WTRU triggers CPAC procedures. This feedback-driven approach enables rapid decision-making based on objective criteria rather than complex multi-factor analysis at the moment of decision.
3Measurement precision
If conditional PSCell addition uses measurement conditions depending on WTRU factors, then the precision of cell management decisions is improved, but the measurement configuration complexity increases
Solution Approach 1:
Different measurement configurations and thresholds are applied locally to different candidate cells based on their specific characteristics and the WTRU's local conditions. Each measurement object can have customized thresholds and evaluation criteria tailored to the specific cell and service requirements, improving decision precision without requiring a single complex global configuration.
Data Source
AI summary
In one or more embodiments, there may be a wireless transmit receive units (WTRU) that implements a method. For example, a WTRU may be configured with measurement events that consider multiple candidate and/or serving cells. Conditional PSCell Addition/Change (CPAC) may use measurement conditions configured with multiple cells. Measurement Event Conditions (e.g., values of X, Y) may depend on factors at the WTRU. The WTRU may determine the number of secondary nodes to add when triggering a conditional PSCell addition condition. The WTRU may determine whether to perform a conditional PSCell addition or change based on configured conditions. The WTRU may be configured with conditions to release an SN. The WTRU may stay between a range of configured SNs. The WTRU may indicate the SCGs added/changed following a CPAC.