WO2020139284A1 - A system for determining root cause about subscribers having reaching problem for mobile network subscribers - Google Patents

A system for determining root cause about subscribers having reaching problem for mobile network subscribers Download PDF

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Publication number
WO2020139284A1
WO2020139284A1 PCT/TR2019/051186 TR2019051186W WO2020139284A1 WO 2020139284 A1 WO2020139284 A1 WO 2020139284A1 TR 2019051186 W TR2019051186 W TR 2019051186W WO 2020139284 A1 WO2020139284 A1 WO 2020139284A1
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WO
WIPO (PCT)
Prior art keywords
data
network
subscribers
service
user terminal
Prior art date
Application number
PCT/TR2019/051186
Other languages
French (fr)
Inventor
Sena Aydeni̇z
Onur Öneş
Original Assignee
Turkcell Teknoloji̇ Araştirma Ve Geli̇şti̇rme Anoni̇m Şi̇rketi̇
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Turkcell Teknoloji̇ Araştirma Ve Geli̇şti̇rme Anoni̇m Şi̇rketi̇ filed Critical Turkcell Teknoloji̇ Araştirma Ve Geli̇şti̇rme Anoni̇m Şi̇rketi̇
Publication of WO2020139284A1 publication Critical patent/WO2020139284A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0709—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/079—Root cause analysis, i.e. error or fault diagnosis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2227—Quality of service monitoring

Definitions

  • the present invention relates to a system for finding root cause by using mobile and fixed network data such as the cell where unreachable subscribers get service before and after the time period when s/he cannot be reached, type of network, quality of service and information of the terminal being used, in a modeling method.
  • a call is initiated in a mobile network by transmitting access signals to the mobile network by means of a mobile device upon button of“call/send” by dialling the phone number requested to be called by the user.
  • Being unable to reach subscribers through service on mobile operators is important for subscribers and it leads to problems such as loss of reputation, loss of customer, inability to acquire income potential for operators as well.
  • this status is kept by creating record in a central data warehouse.
  • the Turkish patent document no. 2017/21888 discloses a system for detecting the reason of not being able to reach a subscriber who is called in a call being realized over a mobile communication network, and notifies it to the calling party.
  • the announcement server evaluates messages in signalings among stations and on the communication network, determines the latest location information of the called subscriber and then queries this location information in the location unit database by means of the information evaluation module.
  • the announcement server detects that the called subscriber gets service for example from a cell in a subway station most recently by means of an information evaluation module during this query and plays the related announcement by using the voice response and announcement module.
  • An objective of the present invention is to realize a system which enables to make root cause analysis about the status of being unreachable in accordance with the service data that it receives before and after the time when the unreachable subscriber cannot be reached in the event that the mobile network subscribers are unreachable.
  • Figure l is a schematic view of the inventive system.
  • the inventive system (1) for finding root cause by using mobile and fixed network data such as the cell where unreachable subscribers get service before and after the time period when s/he cannot be reached, type of network, quality of service and information of the terminal being used, in a modeling method; comprises:
  • At least one user terminal (2) which is configured to enable a mobile operator subscriber to get mobile network service
  • At least one mobile network (3) which is configured to emit radio signals enabling a mobile operator subscriber to benefit from mobile network services over the user terminal (2);
  • At least one data warehouse (4) which is configured to store the data about the signalings occurring on the user terminal (2), and about the mobile network (3);
  • At least one server (5) which is configured to make root cause analysis by accessing the data of the user terminal (2) and the mobile network (3) being used by the unreachable mobile operator subscribers upon accessing the data warehouse (4).
  • the user terminal (2) included in the inventive system (1) is configured to be used by a mobile operator subscriber and to receive network service.
  • the mobile network (3) included in the inventive system (1) is configured to enable the user terminal (2) to receive network service.
  • the data warehouse (4) included in the inventive system (1) is configured to gather and store the data about the signalings occurring on the user terminal (2).
  • the data warehouse (4) is configured to store data such as cell, rate about the mobile network
  • the server (5) included in the inventive system (1) is configured to receive data about the unreachable subscribers by accessing the subscriber and service data stored in the data warehouse (4).
  • the server (5) is configured to receive data about the cell, terminal and network quality relating to the service that it gets before and after the time period when the unreachable subscriber cannot be reached.
  • the server (5) is configured to calculate a correlation coefficient for subscribers who have similar network data and cannot be reached.
  • the server (5) is configured to make root cause analysis about the source of the problem by using the information of previous and/or next cell/network type for the time period when the subscriber cannot be reached, together with the correlation coefficient.
  • the server (5) is configured to determine the reason of not being able to reach the user terminal (2) as at least one of cases such as coverage, terminal incompatibility, software incompatibility, planned work, handover (transition from one cell to another cell within the mobile network (2)) in accordance with a pre-determined model using machine learning methods.
  • the inventive system (1) personal data about subscribers getting service from the mobile network (3) are stored at first.
  • Information such as cell, terminal where subscribers are located during service, rate are stored in the data warehouse (4).
  • the user terminal (2) which is used by an operator subscriber has problem of being unreachable for any reason.
  • the server (5) receives information such as the cell where the subscriber gets service before and/or after the time period when problem of being unreachable is experienced, type of network, quality of service by accessing the data warehouse (4) records. Number of subscribers having similar problems and states are determined as a correlation coefficient. Type of previous and/or next cell/network type for the unreachable time period is added to the model as a correlation variable to determine the source of this problem.
  • the model determines problem cell and reason of being unreachable by machine learning. Categories of these reasons may be at least one of cases such as coverage, terminal incompatibility, software incompatibility, planned work, handover.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a system (1) for finding root cause by using mobile and fixed network data such as the cell where unreachable subscribers get service before and after the time period when s/he cannot be reached, type of network, quality of service and information of the terminal being used, in a modeling method.

Description

A SYSTEM FOR DETERMINING ROOT CAUSE ABOUT SUBSCRIBERS HAVING REACHING PROBLEM FOR MOBILE NETWORK
SUBSCRIBERS
Technical Field
The present invention relates to a system for finding root cause by using mobile and fixed network data such as the cell where unreachable subscribers get service before and after the time period when s/he cannot be reached, type of network, quality of service and information of the terminal being used, in a modeling method.
Background of the Invention
Today, mobile call termination service and access to mobile networks and call initiation services as well are included among essential services required for providing any retail mobile communication service. A call is initiated in a mobile network by transmitting access signals to the mobile network by means of a mobile device upon button of“call/send” by dialling the phone number requested to be called by the user. Being unable to reach subscribers through service on mobile operators is important for subscribers and it leads to problems such as loss of reputation, loss of customer, inability to acquire income potential for operators as well. In the state of the art, in the event of being unable to reach a subscriber who cannot connect to a mobile network, this status is kept by creating record in a central data warehouse. Because the unreachable subscriber is in passive mode in the mobile network, no record created by this subscriber can be found as long as s/he is triggered over the network. Therefore, no root cause analysis/comment can be made about the inaccessibility status. Operators requesting to improve network quality make improvement on metrics such as call interruption, sound quality, data rate. Considering the studies in the state of the art, it is understood that there is need for a system which enables to determine root cause from data of network service where unreachable subscribers get service before and after the time period when s/he cannot be reached.
The Turkish patent document no. 2017/21888, an application in the state of the art, discloses a system for detecting the reason of not being able to reach a subscriber who is called in a call being realized over a mobile communication network, and notifies it to the calling party. According to the system, when a calling subscriber initiates a call towards the called subscriber, it occurs that the called subscriber cannot get service following the subscriber register query on the communication network and the announcement server evaluates messages in signalings among stations and on the communication network, determines the latest location information of the called subscriber and then queries this location information in the location unit database by means of the information evaluation module. The announcement server detects that the called subscriber gets service for example from a cell in a subway station most recently by means of an information evaluation module during this query and plays the related announcement by using the voice response and announcement module.
Summary of the Invention
An objective of the present invention is to realize a system which enables to make root cause analysis about the status of being unreachable in accordance with the service data that it receives before and after the time when the unreachable subscriber cannot be reached in the event that the mobile network subscribers are unreachable.
Detailed Description of the Invention “A System for Determining Root Cause about Subscribers having Reaching Problem for Mobile Network Subscribers” realized to fulfil the objective of the present invention is shown in the figure attached, in which: Figure l is a schematic view of the inventive system.
The components illustrated in the figure are individually numbered, where the numbers refer to the following: 1. System
2. User terminal
3. Mobile network
4. Data warehouse
5. Server
The inventive system (1) for finding root cause by using mobile and fixed network data such as the cell where unreachable subscribers get service before and after the time period when s/he cannot be reached, type of network, quality of service and information of the terminal being used, in a modeling method; comprises:
at least one user terminal (2) which is configured to enable a mobile operator subscriber to get mobile network service;
at least one mobile network (3) which is configured to emit radio signals enabling a mobile operator subscriber to benefit from mobile network services over the user terminal (2);
at least one data warehouse (4) which is configured to store the data about the signalings occurring on the user terminal (2), and about the mobile network (3);
at least one server (5) which is configured to make root cause analysis by accessing the data of the user terminal (2) and the mobile network (3) being used by the unreachable mobile operator subscribers upon accessing the data warehouse (4). The user terminal (2) included in the inventive system (1) is configured to be used by a mobile operator subscriber and to receive network service.
The mobile network (3) included in the inventive system (1) is configured to enable the user terminal (2) to receive network service.
The data warehouse (4) included in the inventive system (1) is configured to gather and store the data about the signalings occurring on the user terminal (2). The data warehouse (4) is configured to store data such as cell, rate about the mobile network
(3)·
The server (5) included in the inventive system (1) is configured to receive data about the unreachable subscribers by accessing the subscriber and service data stored in the data warehouse (4). The server (5) is configured to receive data about the cell, terminal and network quality relating to the service that it gets before and after the time period when the unreachable subscriber cannot be reached. The server (5) is configured to calculate a correlation coefficient for subscribers who have similar network data and cannot be reached. The server (5) is configured to make root cause analysis about the source of the problem by using the information of previous and/or next cell/network type for the time period when the subscriber cannot be reached, together with the correlation coefficient. The server (5) is configured to determine the reason of not being able to reach the user terminal (2) as at least one of cases such as coverage, terminal incompatibility, software incompatibility, planned work, handover (transition from one cell to another cell within the mobile network (2)) in accordance with a pre-determined model using machine learning methods.
In the inventive system (1), personal data about subscribers getting service from the mobile network (3) are stored at first. Information such as cell, terminal where subscribers are located during service, rate are stored in the data warehouse (4). The user terminal (2) which is used by an operator subscriber has problem of being unreachable for any reason. The server (5) receives information such as the cell where the subscriber gets service before and/or after the time period when problem of being unreachable is experienced, type of network, quality of service by accessing the data warehouse (4) records. Number of subscribers having similar problems and states are determined as a correlation coefficient. Type of previous and/or next cell/network type for the unreachable time period is added to the model as a correlation variable to determine the source of this problem. The model determines problem cell and reason of being unreachable by machine learning. Categories of these reasons may be at least one of cases such as coverage, terminal incompatibility, software incompatibility, planned work, handover.
Within these basic concepts; it is possible to develop various embodiments of the inventive system (1); the invention cannot be limited to examples disclosed herein and it is essentially according to claims.

Claims

1. A system (1) for finding root cause by using mobile and fixed network data such as the cell where unreachable subscribers get service before and after the time period when s/he cannot be reached, type of network, quality of service and information of the terminal being used, in a modeling method; comprising
at least one user terminal (2) which is configured to enable a mobile operator subscriber to get mobile network service;
and characterized by
at least one mobile network (3) which is configured to emit radio signals enabling a mobile operator subscriber to benefit from mobile network services over the user terminal (2);
at least one data warehouse (4) which is configured to store the data about the signalings occurring on the user terminal (2), and about the mobile network (3);
at least one server (5) which is configured to make root cause analysis by accessing the data of the user terminal (2) and the mobile network (3) being used by the unreachable mobile operator subscribers upon accessing the data warehouse (4).
2. A system (1) according to Claim 1; characterized by the user terminal (2) which is configured to be used by a mobile operator subscriber and to receive network service.
3. A system (1) according to Claim 1 or 2; characterized by the mobile network (3) which is configured to enable the user terminal (2) to receive network service.
4. A system (1) according to any of the preceding claims; characterized by the data warehouse (4) which is configured to gather and store the data about the signalings occurring on the user terminal (2).
5. A system (1) according to any of the preceding claims; characterized by the data warehouse (4) which is configured to store data such as cell, rate about the mobile network (3).
6. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to receive data about the unreachable subscribers by accessing the subscriber and service data stored in the data warehouse (4).
7. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to receive data about the cell, terminal and network quality relating to the service that it gets before and after the time period when the unreachable subscriber cannot be reached.
8. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to calculate a correlation coefficient for subscribers who have similar network data and cannot be reached.
9. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to make root cause analysis about the source of the problem by using the information of previous and/or next cell/network type for the time period when the subscriber cannot be reached, together with the correlation coefficient.
10. A system (1) according to any of the preceding claims; characterized by the server (5) which is configured to determine the reason of not being able to reach the user terminal (2) as at least one of cases such as coverage, terminal incompatibility, software incompatibility, planned work, handover in accordance with a pre-determined model using machine learning methods.
PCT/TR2019/051186 2018-12-25 2019-12-24 A system for determining root cause about subscribers having reaching problem for mobile network subscribers WO2020139284A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/20325 2018-12-25
TR2018/20325A TR201820325A2 (en) 2018-12-25 2018-12-25 A SYSTEM THAT PROVIDES THE ROOT CAUSE OF SUBSCRIBERS WITH MOBILE NETWORK SUBSCRIBERS ACCESS PROBLEM

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WO2020139284A1 true WO2020139284A1 (en) 2020-07-02

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150280969A1 (en) * 2014-04-01 2015-10-01 Ca, Inc. Multi-hop root cause analysis
WO2017218686A2 (en) * 2016-06-14 2017-12-21 TUPL, Inc. Fixed line resource management
US20180041378A1 (en) * 2016-08-03 2018-02-08 At&T Intellectual Property I, L.P. Method and apparatus for providing trouble isolation via a network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150280969A1 (en) * 2014-04-01 2015-10-01 Ca, Inc. Multi-hop root cause analysis
WO2017218686A2 (en) * 2016-06-14 2017-12-21 TUPL, Inc. Fixed line resource management
US20180041378A1 (en) * 2016-08-03 2018-02-08 At&T Intellectual Property I, L.P. Method and apparatus for providing trouble isolation via a network

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