A Cluster Node (cNode) in 6G is a network entity that manages device access and task coordination within a cluster, bridging access network devices and core network functions for efficient task execution.
Definition
In 6G task-centric network architecture, a Cluster Node (cNode) is introduced to support distributed task management and device access. The cNode acts as a mediator between terminal devices, serving nodes (sNodes), and core network task control functions (TCF). It is responsible for coordinating access and executing task-related functions within a defined service region.
For example, a Task Anchor (TA) in an access network may be a cNode #1, while the terminal device currently connected is associated with a serving node (sNode #1). The cNode #1 is linked to the sNode #1 and may operate within the service region of a TCF #1 in the core network.
The Cluster Node is essential for integrating the access network with task control functions, ensuring that tasks are scheduled, computed, and executed efficiently across the network. It can perform both device access management and task coordination roles, depending on network requirements.
Examples
In a typical 6G scenario, the source access apparatus or the target access apparatus may include a Cluster Node configured to handle device access functions. At the same time, task management is supported by a Cluster Node configured to implement task functions, ensuring seamless task execution across access and core networks.
Using the previous example, cNode #1 manages terminal device access through sNode #1 and communicates with TCF #1 to coordinate tasks. The cNode enables efficient handling of resource allocation, task scheduling, and data forwarding while maintaining quality of service (QoS) requirements.
Cluster Nodes also allow scalable and flexible management in dense network deployments. By grouping terminals and coordinating tasks at the cluster level, the cNode reduces network congestion and ensures high reliability for latency-sensitive and computation-intensive 6G services.
In summary, the Cluster Node is a critical 6G network entity that bridges access and core network layers, coordinates tasks, and manages device access to support a task-centric architecture.
References
6G Task-Centric Network Architecture and Cluster Node Concepts
(cNode, sNode, and TCF Integration for Task Management)