Conditional Cell Change Network Configuration
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Solution Overview
Problem
In conditional cell changes, when a UE hands over from one target SN to another, the target SN is not aware of other SNs, resulting in the UE lacking report configurations and measurement IDs for other target SN cell configurations.
Innovation Solution
A network device transmits indications of candidate target cells to multiple candidate target network devices, receives measurement-related information from these devices, and then forwards this information to a terminal device to facilitate cell changes after handover from a source cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the target SN is not aware of other SNs to reduce device complexity and information overhead, then the device complexity is reduced, but the terminal device lacks report configurations and measurement IDs for other target SN cell configurations resulting in loss of information
Solution Approach 1:
The source SN pre-generates and provides the terminal device with report configurations and measurement IDs for multiple candidate target SNs before handover occurs. This preliminary provision of information ensures that when the terminal device needs to perform measurements or report configurations for target cells belonging to other SNs, the necessary configuration data is already available, eliminating the need for the target SN to be aware of other SNs while preventing information loss
Solution Approach 2:
The source SN acts as an intermediary that collects measurement information requirements from multiple candidate target SNs and consolidates the necessary report configurations and measurement IDs into a single provision to the terminal device. This intermediary role allows the target SNs to remain unaware of each other while ensuring the terminal device receives complete measurement configuration information for all candidate target cells
2Loss of information
If the source SN provides measurement information for multiple target SNs to ensure complete measurement capability, then the completeness of measurement information is improved, but the information overhead and processing complexity increase
Solution Approach 1:
The measurement information is segmented by target SN, with each target SN's measurement configurations and measurement IDs organized separately. The source SN provides this segmented information structure to the terminal device, allowing efficient processing and retrieval of measurement data for each specific target SN without requiring the terminal device to process a single large undifferentiated information set, thus reducing processing complexity while maintaining information completeness
Data Source
AI summary
Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage medium for conditional cell changes. In a method, a network device transmits, to a plurality of candidate target network devices, an indication of a plurality of candidate target cells of the plurality of candidate target network device. The network device receives, from the plurality of candidate target network devices, first information related to measurements for changes between the plurality of candidate target cells. Then the network device transmits, to a terminal device, second information related to the measurements for use in executing of the change from a first candidate target cell to a second candidate target cell among the plurality of candidate target cells after handover from a source cell to the first candidate target cell.