Dual-Connection Data Duplication Control Coordination
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Solution Overview
Problem
In dual-connection scenarios of the Internet of Vehicles, coordination between network nodes is needed to manage the data duplication function effectively, as both master and slave nodes can send MAC Control Elements, leading to confusion and inefficiency in data bearer management.
Innovation Solution
A control method where a first node sends instruction information to a second node to turn on or off the data duplication function for user equipment (UE), allowing the second node to control the data duplication based on the first node's or its own control information, thereby coordinating the activation or deactivation of the data duplication function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both master node and slave node can send MAC CE to control data duplication function, then the system provides flexibility in control, but coordination complexity increases and control efficiency decreases
Solution Approach 1:
The patent introduces an intermediary mechanism where the master node acts as a coordinator for data duplication control. The master node receives control requests from the slave node and manages the MAC CE transmission to the terminal, thereby mediating the control process and reducing direct coordination complexity between equal-level nodes.
Solution Approach 2:
The control function is segmented into different roles: the master node handles coordination and MAC CE transmission, while the slave node handles local data forwarding decisions. This segmentation of control responsibilities reduces overall system complexity by assigning specific functions to specific nodes.
2Speed
If both master node and slave node can independently control data duplication, then control responsiveness is improved, but control consistency deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the slave node reports data duplication control requests to the master node, which then coordinates the actual control action. This feedback loop ensures that control decisions are consistent across the system while maintaining responsiveness through the slave node's ability to quickly generate control requests.
Solution Approach 2:
The master node pre-configures the data duplication control parameters and maintains the authoritative control state. By preparing control parameters in advance and maintaining a centralized control view, the system ensures consistency while allowing rapid response when control actions are needed.
3Reliability
If dual-connection data duplication control is distributed to both nodes, then system robustness is improved, but processing overhead increases
Solution Approach 1:
The master node serves as an intermediary that consolidates control processing tasks. Instead of both nodes independently processing control decisions, the slave node forwards requests to the master node, which handles the actual control logic and MAC CE generation, thereby reducing duplicate processing overhead.
Solution Approach 2:
The master node performs multiple functions including receiving control requests from the slave node, making control decisions, generating MAC CEs, and managing the overall data duplication state. This multi-functionality consolidates processing tasks and reduces the need for separate processing mechanisms at each node.
Data Source
AI summary
Disclosed are a control method, a node and a computer storage medium. The method may include: sending instruction information to a second node when a data bearer for a User Equipment (UE) is established, wherein the instruction information is used for turning on or off the control on a data replication function of the UE by the second node.