Network Slice Control With Site-Level Failover for Closed Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The control function for network slices is typically centralized in a data center, making the closed network vulnerable to disruptions from communication failures between the data center and site facilities or within the data center.
Innovation Solution
A communication system is implemented with site and core network systems, each equipped with processors, allowing local control and relay processes at the site to manage network slice connections, ensuring continuity even in data center or site communication failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the control function for network slices is centralized in a data center, then network management is simplified and standardized, but the closed network becomes vulnerable to disruptions from communication failures between the data center and site facilities or within the data center itself
Solution Approach 1:
The patent segments the network control function into two parts: centralized control for general network management (data center) and distributed control for local network slice operations (site facilities). This segmentation allows the system to maintain simplified centralized management while improving reliability through local autonomy, resolving the contradiction between management simplicity and network continuity.
Solution Approach 2:
The patent implements local quality by enabling site facilities to execute network slice control functions locally rather than requiring all control operations to be performed centrally. This local capability ensures that closed networks can continue operating at site level even when communication with the data center is disrupted, thereby improving reliability while maintaining overall network management efficiency.
2Reliability
If the control function is distributed to site facilities, then network resilience improves, but system complexity increases
Solution Approach 1:
The patent segments control functions by distributing only network slice-specific control capabilities to site facilities while retaining overall network management at the data center. This selective segmentation improves network resilience without requiring complete decentralization, thereby limiting the increase in system complexity to only the necessary distributed functions.
Solution Approach 2:
The patent implements multi-functionality by designing the site facility control function to handle multiple roles: local network slice management, relay of control signals, and maintenance of closed network operations. This universal approach consolidates distributed functions into a unified architecture, reducing the overall system complexity despite the distribution of control capabilities.
Data Source
AI summary
To implement a closed network that is less susceptible to trouble, a communication system includes a site system (43) and a core network system (41). The site system controls communication by a terminal (Step S105), and relays data acquired from the terminal to another system arranged at a site based on the control (Step S106). The core network system controls communication by the terminal (Step S108). The site system causes the site system to control communication by the terminal in response to a request for connection to a network slice of a closed network transmitted from the terminal via a site antenna included in the site system (Step S104), and causes the core network system to control communication by the terminal in response to a request for connection to another network slice transmitted from the terminal via the site antenna (Step S107).