RADIO BASE STATION, CONTROL APPARATUS, AND ABNORMALITY DETECTION METHOD

• US 20120071183A1
• Filed: 07/08/2011
• Published: 03/22/2012
• Est. Priority Date: 09/16/2010
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: SAITOU, Naoyuki
• Granted Patent: US 8,971,871 B2
• Time in Patent Office: Days
• US Class Current: 455/507
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition

Abstract

A radio base station that forms a cell by transmitting a radio wave and that communicates with a mobile terminal existing in the cell, the radio base station includes a reception unit configured to receive information including cell information relating to a state of a peripheral cell of the radio base station, the information being transmitted from the mobile terminal, and a calculation processing device configured to detect an abnormality relating to another radio base station corresponding to the peripheral cell based on the cell information.

Claims

1. A radio base station that forms a cell by transmitting a radio wave and that communicates with a mobile terminal existing in the cell, the radio base station comprising:

a reception unit configured to receive information including cell information relating to a state of a peripheral cell of the radio base station, the information being transmitted from the mobile terminal; and

a calculation processing device configured to detect an abnormality relating to another radio base station corresponding to the peripheral cell based on the cell information.

2. The radio base station according to claim 1, wherein, upon detecting a fluctuation in a change occurrence rate of the information, the calculation processing device identifies the another radio base station based on a change in identification information, included in the information, of the peripheral cell before and after the detection.

3. The radio base station according to claim 1, wherein the information includes information indicating an occurrence and a timing of a communication request transmitted from another mobile terminal which is in a cell of the another radio base station to the radio base station, and wherein the calculation processing device detects an abnormality relating to the another radio base station corresponding to the peripheral cell based on the cell information relating to the state of the peripheral cell and information indicating a frequency of occurrence of the communication request, the occurrence frequency being calculated based on the occurrence and the timing of the communication request.

4. A control apparatus comprising:

a reception unit configured to receive information including cell information relating to a state of a peripheral cell of a first radio base station, the information being transmitted from a mobile terminal to the first radio base station; and

a calculation processing device configured to detect an abnormality relating to a second radio base station corresponding to the peripheral cell based on the cell information.

5. The control apparatus according to claim 4, wherein, upon detecting a fluctuation in a change occurrence rate of the information, the calculation processing device identifies the second radio base station based on a change in identification information, included in the information, of the peripheral cell before and after the detection.

6. The control apparatus according to claim 4 , wherein the information includes information indicating an occurrence and a timing of a communication request transmitted from another mobile terminal which is in a cell of the second radio base station to the first radio base station, and

wherein the calculation processing device detects an abnormality relating to the second radio base station corresponding to the peripheral cell based on the cell information relating to the state of the peripheral cell and information indicating a frequency of occurrence of the communication request, the occurrence frequency being calculated based on the occurrence and the timing of the communication request.

7. A method for detecting an abnormality of a radio base station, the method comprising:

receiving information including cell information relating to a state of a peripheral cell of a first radio base station, the information being transmitted from a mobile terminal to the first radio base station; and

detecting an abnormality relating to a second radio base station corresponding to the peripheral cell based on the cell information.

8. A method for detecting an abnormality of a radio base station, the method comprising:

receiving information including cell information relating to a state of each of peripheral cells of a first radio base station, the information being transmitted from a mobile terminal to the first radio base station ;

causing the first radio base station to detect an abnormality based on the information, the abnormality relating to a second radio base station corresponding to one of the peripheral cells, and to notify a control station of an occurrence of the abnormality relating to the second radio base station ; and

causing the control station to identifies the second radio base station from among a plurality of radio base stations corresponding to the peripheral cells based on the cell information in response to the notification.

9. A mobile communication system comprising:

a plurality of radio base stations each forming a cell by transmitting a radio wave and communicating with a mobile terminal existing in the cell, and a control apparatus configured to communicate with at least one of the radio base stations, the control apparatus including, a reception unit configured to receive information including cell information relating to a state of each of peripheral cells of a first radio base station among the plurality of radio base stations, the information being transmitted from a mobile terminal to the first radio base station; and

a calculation processing device configured to detect an abnormality relating to a second radio base station corresponding to one of the peripheral cells based on the cell information.

10. The mobile communication system according to claim 9, wherein, upon detecting a fluctuation in a change occurrence rate of the information, the calculation processing device identifies the second radio base station based on a change in identification information, included in the information, of the peripheral cells before and after the detection.

11. The mobile communication system according to claim 9, further comprising a control station coupled to the plurality of radio base stations, wherein the control apparatus notifies the control station of an occurrence of an abnormality relating to the second radio base station, and wherein the control station identifies the second radio base station from among the plurality of radio base stations corresponding to the peripheral cells based on the cell information in response to the notification.