Multi-TRP Mobility Management for Low-Delay Role Switching
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Solution Overview
Problem
Existing wireless communication systems with multiple transmission and reception points (TRPs) face challenges in mobility management, leading to degraded communication quality and long handover delays when TRP links deteriorate.
Innovation Solution
Implementing a mobility management solution that allows TRPs to dynamically update their roles and members based on measurement qualities, using measurement configuration and reporting mechanisms to ensure higher-quality TRPs serve the terminal device, thereby avoiding handover delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional handover procedures are used when TRP links deteriorate, then communication reliability can be maintained, but handover delays increase significantly
Solution Approach 1:
The patent implements preliminary action by pre-configuring measurement parameters and thresholds before TRP link deterioration occurs. The terminal device continuously monitors TRP quality metrics against pre-set thresholds, enabling proactive detection of link degradation trends. This allows the system to initiate TRP role updates before complete link failure, significantly reducing handover delays while maintaining communication reliability through early intervention.
2Productivity
If TRP roles are dynamically updated based on measurement qualities, then communication efficiency improves, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the mobility management function into distinct modules: measurement configuration module, quality evaluation module, threshold comparison module, and role update module. Each module handles a specific aspect of TRP management independently, making the complex system more manageable and maintainable. The measurement configuration is segmented into multiple parameters (quality thresholds, update triggers, reporting intervals) that can be independently optimized.
Solution Approach 2:
The system implements dynamics by enabling flexible adjustment of measurement parameters and update thresholds based on network conditions. The measurement configuration information can be dynamically modified by the network side, allowing the system to adapt to changing environments. TRP roles are not fixed but can be updated in real-time based on measured quality metrics, providing dynamic optimization of communication efficiency.
3Measurement precision
If measurement configuration information is provided to terminal devices, then TRP quality can be accurately assessed, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential measurement parameters needed for TRP quality assessment from the complete set of possible measurements. Instead of configuring the terminal to measure all available TRP attributes, the system selectively extracts and configures only the critical quality metrics relevant to TRP role determination. This reduces the measurement configuration signaling overhead while maintaining sufficient accuracy for making TRP selection decisions.
Data Source
AI summary
The present disclosure relates to an electronic device, a method, and a storage medium for a wireless communication system. Various embodiments of mobility management for multiple transmission and reception points (multi-TRP) are described. In an embodiment, an electronic device for a first TRP includes a processing circuit, where the processing circuit is configured to: in response to that the first TRP and the second TRP are a master TRP and a secondary TRP respectively serving a terminal device, provide measurement configuration information to the terminal device, receive a measurement report from the terminal device, and update TRPs serving the particular terminal device based at least on measurement quality of the first TRP and the second TRP.