Base Station Silent Failure Detection via Mobile Station Tests

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Solution Overview

Problem

In radio communication systems, silent failures in base stations often go undetected, leading to increased processing loads on management devices and higher recovery costs, as existing methods rely on statistical processing that may inaccurately identify faulty base stations.

Innovation Solution

A radio communication system where a mobile station conducts regular communication tests with base stations and transmits silent failure information, allowing the base stations to perform self-detection and restart, thereby identifying and addressing potential silent failures without relying on management device processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the management device performs statistical processing on error information from mobile stations to identify base stations with high probability of silent failure, then the ability to detect silent failure is improved, but the processing load on the management device increases

Engineering Contradiction:

Improvesilent failure detection capabilityVSAvoidprocessing load on management device

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the silent failure detection function from the management device and implements it directly in the base station. The base station autonomously determines whether silent failure has occurred by comparing its own operational status with error information received from mobile stations, eliminating the need for the management device to perform complex statistical processing on error information from multiple mobile stations.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The base station performs self-detection of silent failure by using its own operational status information in combination with error information from mobile stations. This self-service approach allows the base station to autonomously identify when it has experienced silent failure without requiring external analysis by the management device, thereby reducing the processing load on the management device.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If the management device performs statistical processing to determine base stations with high probability of silent failure, then silent failure identification capability is improved, but the processing load and cost increase

Engineering Contradiction:

Improvesilent failure identification accuracyVSAvoidprocessing efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent extracts the statistical processing function from the management device and implements it locally in the base station. The base station directly compares error information from mobile stations with its own operational status to determine silent failure, eliminating the need for the management device to aggregate and process error information from multiple mobile stations statistically.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The base station maintains its operational status information in advance, which is then used in combination with error information from mobile stations to rapidly determine whether silent failure has occurred. This preliminary preparation of operational status data enables immediate silent failure detection without requiring subsequent statistical processing by the management device.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the management device performs statistical processing on error information, then the ability to identify base stations with silent failure probability is improved, but the processing load on the management device increases

Engineering Contradiction:

Improvefailure detection reliabilityVSAvoidprocessing power consumption

Core Design Contradiction:

ReliabilityVSPower

Solution Approach 1:

The patent extracts the failure detection function from the management device and implements it in the base station. The base station uses its own operational status information combined with error information from mobile stations to determine silent failure, eliminating the need for the management device to perform power-intensive statistical processing on error information from multiple sources.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The base station autonomously performs silent failure detection by comparing its operational status with received error information, eliminating the need for external processing by the management device. This self-service approach significantly reduces the processing power consumption of the management device while maintaining reliable failure detection.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9161242B2Radio communication system and radio communication method

Publication Date: 2015.10.13 KYOCERA CORP

AI summary

A radio communication system (101) includes plural base stations (131) connected over a network and a mobile station (111), such that the mobile station (111) has a mobile station radio communication unit (115) and a control unit (117) that tests radio communication on each base station (131) that has transmitted a radio signal receivable by the radio communication unit (115) and controls the radio communication unit (115) to transmit silent failure information including identification information on a base station presumed to have silent failure from the test result; each base station (131) has a base station radio communication unit (135), a communication unit (137) that communicates with other base stations, and a base station control unit that controls the communication unit (137), when the identification information does not indicate the present base station, transmits the silent failure information and request for silent failure detection to the corresponding base station.