Interactive Auxiliary Cell Selection in Coordinated Multiple Point Systems
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Solution Overview
Problem
In coordinated multiple point transmission and reception technology, selecting a suitable neighbor cell as an auxiliary cell for participation in operations is a pressing issue, as existing methods lack effective mechanisms for interactive selection and dynamic adaptation.
Innovation Solution
A method and system where User Equipment (UE) selects a master cell, measures and evaluates neighbor cell status information to generate a candidate list of auxiliary cells, and the master cell activates the most suitable cell for the coordinated multiple point operation, with periodic updates and real-time adjustments to ensure optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UE selects a current resident cell as a master cell, then the UE can establish a basic connection, but the selection of a suitable neighbour cell as an auxiliary cell for coordinated multiple point operation cannot be effectively performed
Solution Approach 1:
The network pre-configures neighbor cell lists for UEs before coordinated multiple point operation is needed. This preliminary preparation enables faster and more efficient auxiliary cell selection when the operation is triggered, resolving the contradiction between operational capability and ease of execution
Solution Approach 2:
The system implements measurement feedback mechanisms where UEs report channel quality and other metrics about neighbor cells. This feedback enables the network to make informed decisions about auxiliary cell selection, transforming the difficult selection process into a systematic, data-driven procedure
2Productivity
If multiple cells are used for coordinated multiple point transmission and reception, then system performance and edge user throughput are improved, but the complexity of coordinating multiple independent cells increases
Solution Approach 1:
The patent divides the coordination function into distinct roles: master cells that perform scheduling and control, and auxiliary cells that focus on transmission and status reporting. This segmentation allows multiple cells to work together efficiently while reducing overall coordination complexity
Solution Approach 2:
The master cell acts as an intermediary that coordinates between multiple auxiliary cells and the UE. It centralizes scheduling decisions and resource allocation, enabling multiple cells to contribute to high throughput without requiring complex peer-to-peer coordination among all cells
3Extent of automation
If the master cell has complex functions for selection, status collection, and scheduling, then coordinated multiple point operation can be managed, but the auxiliary cell must have simple functions which limits its operational flexibility
Solution Approach 1:
The patent enables dynamic role assignment where cells can switch between master and auxiliary roles based on operational needs. Auxiliary cells can be dynamically selected from the neighbor cell list and can be switched during operation, providing flexibility while maintaining the simplified function structure
Solution Approach 2:
The same cell can serve as a master cell for one UE and an auxiliary cell for another UE simultaneously. This multi-functionality allows the network to efficiently utilize cell resources while maintaining clear functional boundaries within each coordinated multiple point operation
Data Source
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AI summary
The disclosure provides a method for interactively selecting an auxiliary cell, which includes: a UE selects a master cell and performs data interaction with the master cell to obtain a neighbour cell list; the UE measures coordinated multiple point status information of a cell in the neighbour cell list, and perform evaluation according to a measurement result to generate a candidate list of coordinated multiple point auxiliary cells; when the UE initiates a coordinated multiple point operation service, the UE sends the candidate list to the master cell; the master cell performs an activation strategy on a cell in the candidate list to obtain an auxiliary cell for the coordinated multiple point operation of the UE, and sends an auxiliary cell activation list to the UE; and the UE maintains the auxiliary cell activation list until the coordinated multiple point operation service ends. The disclosure further provides a system for interactively selecting an auxiliary cell. By means of the method and apparatus above, a preferable neighbour cell can be selected as an auxiliary cell through interaction, and service quality and user experience in a coordinated multiple point operation is improved.