Broadband Access Control Unit with Route Switching for High Capacity
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Solution Overview
Problem
Existing broadband access networks face challenges with low-capacity subscriber access devices, leading to performance bottlenecks, single points of failure, and difficulties in IP address planning and central management, which hinder the provision of high-capacity and reliable services.
Innovation Solution
A high-capacity broadband access method and system that includes a control unit, a route switching unit, and an access unit, where the control unit manages and authenticates subscribers, allocates resources, and enables IP address sharing among multiple access units, reducing the complexity of address planning and operation costs while improving network reliability and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If low-capacity subscriber access devices are used, then device complexity is reduced, but the network capacity and reliability deteriorate due to performance bottlenecks and single points of failure
Solution Approach 1:
The subscriber access device is divided into multiple independent access units, each capable of autonomous operation. This segmentation eliminates single points of failure and allows the system to maintain partial functionality even when individual units fail, thereby improving network reliability without significantly increasing overall device complexity.
Solution Approach 2:
Multiple access units are merged into a unified system with shared control and coordination mechanisms. This allows the system to achieve high capacity and reliability benefits of multiple units while maintaining manageable complexity through centralized control functions.
2Quantity of substance
If multiple access units are deployed to increase capacity, then network capacity improves, but IP address planning and central management become more difficult
Solution Approach 1:
Each access unit is designed with universal functionality to handle complete subscriber access processes independently. This multi-functionality allows access units to operate autonomously with identical capabilities, simplifying IP address planning and management since each unit follows the same operational patterns and can be managed using standardized procedures.
Solution Approach 2:
IP address pools and configuration parameters are pre-configured and shared among access units through a centralized management system. This preliminary action eliminates the need for complex real-time coordination during operation, as each access unit already has the necessary resources and configurations ready before subscribers connect.
3Reliability
If a centralized broadband access server is used for authentication and management, then security and control are improved, but performance bottlenecks and single points of failure occur
Solution Approach 1:
The centralized authentication function is segmented and distributed to each access unit. Each access unit independently performs authentication, authorization, and accounting functions for its connected subscribers. This eliminates the performance bottleneck of a single centralized server while maintaining security through distributed control, and removes single points of failure by replicating authentication capabilities across multiple units.
Data Source
AI summary
The present invention discloses a high-capacity broadband access method, comprising: a broadband subscriber initiating an access request to an access unit; the access unit sending the subscriber authentication information to a control unit via a route switching unit; the control unit authenticating the subscriber with an internal or external authentication, authorization and accounting server, returning the authentication result to the access unit via the route switching unit, and sending the configuration information to the accessed subscriber; the route switching unit and the access unit accomplishing configuration of the subscriber information, allocating corresponding resource to the subscriber, and establishing a data channel for network access of the subscriber. The present invention also discloses a high-capacity broadband access device and a system thereof.