Conditional Mobility with Multi-Connectivity Prioritization
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Solution Overview
Problem
Existing wireless transmit receive units (WTRUs) face challenges in efficiently handling mobility and multi-connectivity tasks, particularly in scenarios involving conditional reconfigurations and handovers, which can lead to performance failures and interruptions.
Innovation Solution
The WTRU is designed to receive radio resource control (RRC) messages indicating conditional reconfigurations, monitor conditions for applying these reconfigurations, and prioritize performance of conditional handover commands over pending reconfigurations, thereby enhancing mobility and multi-connectivity management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the WTRU applies conditional reconfiguration for mobility management, then mobility robustness is improved, but the complexity of handling multiple concurrent reconfigurations increases
Solution Approach 1:
The network entity provides conditional reconfiguration commands in advance before handover is actually needed. The WTRU stores these pre-configured parameters and automatically applies them when predetermined conditions are met, eliminating the need for real-time reconfiguration decisions during mobility events.
Solution Approach 2:
The conditional reconfiguration mechanism divides mobility management into separate, independent configuration commands. Each conditional reconfiguration is treated as an independent unit with its own trigger conditions, allowing the WTRU to manage multiple reconfigurations without interference by evaluating each condition separately.
2Measurement precision
If the WTRU monitors multiple conditions for conditional reconfiguration, then the precision of reconfiguration timing is improved, but the processing overhead and time consumption increase
Solution Approach 1:
The WTRU monitors multiple conditions simultaneously but only needs one condition to be satisfied to trigger reconfiguration. This partial action approach allows comprehensive monitoring without requiring all conditions to be evaluated fully, reducing unnecessary processing time while maintaining timing precision.
Data Source
AI summary
Systems, methods and instrumentalities are described herein with respect to the mobility and multi-connectivity of wireless transmit receive units. These devices may be configured to perform conditional handovers and/or conditional second cell group reconfigurations including primary secondary cell additions or changes. The devices may exchange information with a network while performing the conditional reconfigurations and/or conditional handovers. The devices may be configured with rules to handle concurrent handover and reconfiguration tasks.