CORESET Association for Flexible Cell Handover
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Solution Overview
Problem
Current cell handover processes in communication technologies are inflexible and result in significant handover delays due to the limited association of Control Resource Sets (CORESETs) with neighboring cells, hindering efficient cell and Transmission and Reception Point (TRP) handovers in multi-TRP scenarios.
Innovation Solution
A method and device configuration that associates a first CORESET with a neighboring cell, enabling the terminal device to receive and a network device to send configuration information related to CORESETs, which facilitates fast cell handover and TRP handover by updating or maintaining related configuration information, thereby improving handover flexibility and reducing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a CORESET is only associated with the source cell, then the configuration is simple and easy to manage, but the cell handover flexibility is reduced and handover delays increase
Solution Approach 1:
The CORESET is configured to serve multiple functions: it is associated with both the source cell and neighboring cells simultaneously. This allows the same CORESET resource to be reused across different cells, enabling flexible handover without requiring separate dedicated CORESET configurations for each cell, thus improving adaptability while controlling complexity.
Solution Approach 2:
The CORESET configuration for neighboring cells is prepared and configured in advance before handover occurs. The terminal device receives and stores the CORESET configuration information associated with neighboring cells beforehand, so that when handover is needed, the terminal can immediately use the pre-configured CORESET parameters, reducing handover delay while maintaining configuration manageability.
2Loss of time
If traditional cell handover procedures are used, then the process is standardized and simple to implement, but significant handover delays occur
Solution Approach 1:
The terminal device receives CORESET configuration information for neighboring cells in advance during the normal operation phase, before handover is actually triggered. This preliminary configuration includes storing CORESET parameters such as frequency domain resources, time domain resources, and association relationships with neighboring cells. When handover occurs, the terminal can immediately apply these pre-configured parameters, significantly reducing the time required during the actual handover execution while maintaining reasonable procedural complexity.
Data Source
AI summary
A method for associating a neighboring cell and a device are provided. The method can be performed by a terminal device and includes: receiving first configuration information, where the first configuration information is associated with one or more control resource sets (CORESETs), and a first CORESET of the one or more CORESETs is associated with a neighboring cell of the terminal device.