Disaggregated BNG Multiple State Control Interfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing broadband network gateways (BNGs) face bottlenecks due to the use of a single interface for communication between the control plane and the user plane, leading to delays and loss of high-priority messages.
Innovation Solution
A disaggregated BNG (DBNG) is deployed, which physically and logically separates the control plane and the user plane, allowing multiple state control interfaces to be established between the DBNG control plane system and the DBNG user plane devices, enabling efficient communication of state-related messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single interface is used for communication between the control plane and the user plane, then the device complexity is reduced, but the reliability and timeliness of high-priority message transmission deteriorates due to bottlenecks and message loss
Solution Approach 1:
The patent divides the single communication interface into multiple separate interfaces between the control plane and user plane. Each interface can handle specific types of messages or traffic flows independently, preventing bottlenecks and message loss that occur in single-interface architectures. This segmentation improves transmission reliability while the modular nature keeps complexity manageable.
2Productivity
If multiple state control interfaces are established, then the productivity and timeliness of state-related message communication is improved, but the device complexity increases
Solution Approach 1:
The patent creates multiple state control interfaces that can handle various types of state-related messages simultaneously. Each interface is designed to be multi-functional, capable of processing different message types (association setup, teardown, modification) and different priority levels, thereby improving overall communication efficiency without requiring entirely separate specialized interfaces for each function.
3Adaptability or versatility
If the control plane and user plane are separated into distinct components, then the adaptability and flexibility of the network gateway is improved, but the device complexity increases due to additional interfaces and components
Solution Approach 1:
The patent segments the traditional monolithic broadband network gateway into separate control plane and user plane components. This architectural segmentation allows each plane to be independently configured, managed, and optimized for specific functions, greatly improving adaptability and flexibility while enabling parallel development and deployment.
Solution Approach 2:
The patent introduces a new dimensional aspect to the gateway architecture by separating control functions from data forwarding functions across different planes. This dimensional separation transforms the traditional single-plane architecture into a multi-plane architecture, enabling independent scaling and adaptation of control and data planes without affecting each other.
Data Source
AI summary
A disaggregated broadband network gateway (DBNG) control plane system may receive an association setup request message from a DBNG user plane device, wherein the association setup request message is received via a state control interface between the DBNG control plane system and the DBNG user plane device. The DBNG control plane system may determine, based on the association setup request message, one or more capabilities of the DBNG user plane device and may thereby cause one or more additional state control interfaces to be established between the DBNG control plane system and the DBNG user plane device. The DBNG control plane system and the DBNG control plane system may communicate messages associated with a first message type via the state control interface and may communicate messages associated with a second message type via at least one of the one or more additional state control interfaces.