Radio Station Alarm Sharing for Network Healing
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Solution Overview
Problem
In multi-vendor radio communication systems, neighboring radio base stations often fail to recognize failures in adjacent stations, leading to undetected cell shrinkage and increased out-of-service areas, which degrade system performance and capacity.
Innovation Solution
Implementing a communication system where alarm information regarding failures is shared between affected radio stations and network operation management apparatuses, enabling appropriate control and self-recovery operations to prevent performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If self-healing function is implemented using only local control between radio base station and network operation management apparatus, then autonomous fault management is achieved, but neighboring radio base stations cannot recognize failures in adjacent stations leading to undetected cell shrinkage
Solution Approach 1:
The system segments the failure detection function into two parts: local self-healing control between the affected radio base station and network operation management apparatus, and neighboring station monitoring through alarm information sharing. This segmentation allows each part to operate independently while maintaining overall system reliability.
Solution Approach 2:
Alarm information serves as an intermediary mechanism that transfers failure detection data from the affected radio base station to neighboring stations. This intermediary enables information flow across vendor boundaries without requiring direct integration between different vendor systems.
2Measurement precision
If alarm information is shared between radio base stations from different vendors, then failure detection capability is improved, but system complexity increases due to multi-vendor integration requirements
Solution Approach 1:
The alarm information sharing mechanism is designed with universal functionality that works across different vendor systems. The same alarm information structure and transmission protocol are used regardless of which vendor's radio base stations are involved, simplifying multi-vendor integration.
Solution Approach 2:
The system changes the parameter of information exchange by using standardized alarm information parameters that can be universally interpreted. This parameter standardization allows neighboring stations from different vendors to recognize and respond to failures without complex vendor-specific protocols.
3Productivity
If neighboring radio base stations monitor and recognize failures in adjacent stations, then out-of-service areas are reduced, but communication overhead between stations increases
Solution Approach 1:
The system performs preliminary action by having the affected radio base station proactively send alarm information to neighboring stations immediately upon detecting a failure. This prevents the need for continuous monitoring queries from neighboring stations, reducing communication overhead while maintaining quick failure recognition.
Solution Approach 2:
The alarm information mechanism provides feedback from the affected radio base station to neighboring stations about their service coverage status. This feedback loop allows neighboring stations to adjust their operations to compensate for failures without requiring continuous bidirectional communication.
Data Source
AI summary
A radio communication system, a radio station, a network operation management apparatus, and a network healing method are provided that can suppress system performance degradation caused when a failure occurs in a radio base station, a network apparatus, or the like. In a radio communication system which includes multiple radio stations (10, 20) and a network operation management apparatus (30) managing the radio stations and in which network optimization is performed, at least one of a first radio station (10) in which a failure occurs, a second radio station (20) different from the first ration station, and the network operation management apparatus (30) sends alarm information regarding the failure.