Portable Internet Radio Access Station Management Processor Redundancy
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Solution Overview
Problem
The management processor in a portable internet radio access station may experience temporary obstructions due to system defects or network overload, leading to discontinuity in call processing and reduced reliability of the portable internet service.
Innovation Solution
A portable internet radio access station employing multiple management processors with an obstruction sensing unit, operation state determining unit, and database synchronizing unit to ensure continuous and reliable call processing by synchronizing databases and managing operation states during obstructions, using hardware interrupts for obstruction detection and minimizing delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single management processor is used to manage call processing, then the device complexity is reduced, but the reliability and continuity of service are reduced when obstructions occur
Solution Approach 1:
The system divides the management processor function into multiple independent management processors (first management processor and second management processor). Each processor can independently perform call processing, so when one processor experiences an obstruction, the other can continue providing service, ensuring service continuity and reliability while maintaining manageable system complexity through modular design
Solution Approach 2:
The system establishes a standby management processor that is prepared in advance to take over call processing when the active processor experiences an obstruction. The database synchronization mechanism continuously maintains both processors in a ready state, providing a cushion against potential failures before they occur, thereby ensuring uninterrupted service
2Reliability
If multiple management processors are used to ensure service continuity, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The system creates a copy of the management processor functionality with the second management processor mirroring the capabilities of the first. Both processors have identical database structures and can independently perform call processing. This copying approach ensures reliability through redundancy while maintaining simplicity because the duplicated processor uses the same proven design and protocols
Solution Approach 2:
The system merges the functionality of multiple management processors into a unified call processing framework where both processors share common databases and protocols. The database synchronization mechanism combines the state of both processors, allowing them to work as a cohesive unit while providing failover capability, thus achieving reliability without proportionally increasing overall system complexity
3Reliability
If database synchronization is continuously performed between multiple management processors, then the service continuity is secured during obstructions, but the loss of energy increases due to continuous data replication
Solution Approach 1:
The system performs database synchronization periodically or event-driven rather than continuously. The second management processor receives and stores call processing information from the first processor at specific intervals or when changes occur, rather than maintaining constant real-time synchronization. This periodic action ensures service availability while significantly reducing the energy consumption associated with continuous data replication
Data Source
AI summary
The present invention relates to a portable internet radio access station, and more particularly, to a portable internet radio access station including a plurality of management processors and a method of controlling the plurality of management processors. A first management processor of a portable internet radio access station according to the present invention includes: an obstruction sensing unit sensing an obstruction in the first and second management processors; a call processing database storing a call processing information of the portable internet radio access station; an operation state determining unit determining an operation state of the first management processor based on the obstruction; and a database synchronizing unit synchronizing the call processing database with a call processing database of the second management processor based on the operation state of the first management processor Accordingly, continuity and reliability in call processing are obtained in the portable internet radio access station of the present invention.