Management apparatus and method for identifying candidate for improving communication quality; apparatus and method for identifying communication path; non-transitory computer-readable storage medium storing such programs; and wireless communication system

• US 9,485,706 B2
• Filed: 07/30/2014
• Issued: 11/01/2016
• Est. Priority Date: 03/01/2012
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Shinada, Yuki, Nitta, Daisuke, Yokosawa, Tadanori, Kawaguchi, Takahiro
• Primary Examiner(s): Lee, Andrew
• Application Number:
  US14/446,825
• Publication Number:
  US 20140341061A1
• Time in Patent Office: 825 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 16/20 for indoor coverage or short range network deployment
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 40/12 based on transmission quality or channel quality

Abstract

A management apparatus that identifies a candidate for improving communication quality in a wireless communication system including a base station and a mobile station, the management apparatus comprising: an obtainer that obtains measured communication quality information and positional information from the mobile station; a communication quality estimator that estimates a communication quality based on the positional information obtained from the mobile station; a communication path determiner that identifies a communication path using the estimated communication quality estimated and the measured communication quality information; and a communication quality improvement candidate determiner that identifies the candidate for improving communication quality related to the communication path determined, the candidate being based on communication quality. A method and a program for identifying a candidate for improving communication quality, an apparatus, a method, and a program for determining a communication path, and a wireless communication system are also provided.

Claims

1. A management apparatus that identifies a candidate for improving communication quality in a wireless communication system including a base station and a mobile station, the management apparatus comprising:

an obtainer that obtains measured communication quality information and positional information from the mobile station;

a communication quality estimator that estimates a communication quality based on the positional information obtained from the mobile station;

a communication path determiner that determines whether there is any radio-wave amplifier present on a communication path using the estimated communication quality estimated by the communication quality estimator and the measured communication quality information obtained by the obtainer; and

a communication quality improvement candidate determiner that identifies the candidate for improving communication quality related to the communication path determined by the communication path determiner, the candidate being based on communication quality.

2. The management apparatus according to claim 1, wherein

in response to receiving the measured communication quality information and the positional information from the mobile station, the obtainer further obtains status of radio wave from a second communication system having an area narrower than that of the wireless communication system.

3. The management apparatus according to claim 1, further comprising an indoor/outdoor determiner that determines whether the mobile station is located indoor or outdoor,

wherein the communication quality estimator additionally uses the result of the determining by the indoor/outdoor determiner to estimate the communication quality.

4. The management apparatus according to claim 3, further comprising an indoor/outdoor determiner determines the mobile station is located indoor or outdoor using the status of radio wave from the second system.

5. The management apparatus according to claim 3, further comprising an indoor/outdoor determiner determines the mobile station is located indoor or outdoor using status of radio wave that the mobile station receives from a global positioning system (GPS).

6. The management apparatus according to claim 3, further comprising an indoor/outdoor determiner determines the mobile station is located indoor or outdoor using status of radio wave that the mobile station receives from a small indoor wireless station.

7. The management apparatus according to claim 3, wherein the communication quality estimator additionally uses the determining by the indoor/outdoor determiner to estimate a propagation loss using a propagation-loss estimation expression.

8. The management apparatus according to claim 1, wherein:

when there is a radio-wave amplifier, the communication path determiner determines the communication path disposes thereon the radio-wave amplifier.

9. The management apparatus according to claim 1, wherein the communication path determiner determines, from an actual propagation loss between the base station and the mobile station and an estimated propagation loss estimated by the communication quality estimator, whether the radio-wave amplifier is present on the communication path.

10. The management apparatus according to claim 1, wherein when it is determined that the radio-wave amplifier is present, the communication path determiner causes the base station to search for a radio-wave amplifier in a sector of the base station.

11. The management apparatus according to claim 10, wherein when the radio-wave amplifier is not registered in the base station, the communication path determiner instructs the base station to register the radio-wave amplifier therein.

12. The management apparatus according to claim 1, wherein the communication quality improvement candidate determiner determines, among a plurality of the communication paths determined by the communication path determiner, a point having the largest propagation loss as the communication quality improvement candidate.

13. The management apparatus according to claim 1, wherein the wireless communication system is at least one of a 3G system or a Long Term Evolution (LTE) system.

14. The management apparatus according to claim 13, being incorporated in one of a Radio Network Controller (RNC) of the 3G system, a superordinate device of the RNC, an outdoor LTE wireless base station (eNodeB) of the LTE system, and a superordinate device of the eNodeB.

15. A method of identifying a candidate for improving communication quality in a wireless communication system including a base station and a mobile station, the method comprising:

obtaining measured communication quality information and positional information from the mobile station;

estimating communication quality based on the positional information obtained from the mobile station;

determining whether there is any radio-wave amplifier present on a communication path using the estimated communication quality and the measured communication quality information obtained; and

identifying the candidate for improving quality related to the determined communication path, the candidate being based on communication quality.

16. A non-transitory computer-readable storage medium having stored therein a program for causing a computer to execute a process for identifying a candidate for improving communication quality in a wireless communication system including a base station and a mobile station, the process comprising:

obtaining measured communication quality information and positional information from the mobile station;

estimating communication quality based on the positional information obtained from the mobile station;

determining whether there is any radio-wave amplifier present on a communication path using the estimated communication quality and the measured communication quality information; and

identifying the candidate for improving communication quality related to the determined communication path, the candidate being based on communication quality.

17. An apparatus for determining a communication path in a wireless communication system including a base station and a mobile station, the apparatus comprising:

an obtainer that obtains measured communication quality information and positional information from the mobile station;

a communication quality estimator that estimates a communication quality based on the positional information obtained from the mobile station; and

a communication path determiner that determines whether there is any radio-wave amplifier present on a communication path using the estimated communication quality estimated by the communication quality estimator and the measured communication quality information obtained by the obtainer.

18. A method of determining a communication path in a wireless communication system including a base station and a mobile station, the method comprising:

obtaining measured communication quality information and positional information from the mobile station;

estimating communication quality based on the positional information obtained from the mobile station; and

determining whether there is any radio-wave amplifier present on a communication path using the estimated communication quality and the measured communication quality information.

19. A non-transitory computer-readable storage medium having stored therein a program for causing a computer to execute a process to determine a communication path in a wireless communication system including a base station and a mobile station, the process comprising:

obtaining measured communication quality information and positional information from the mobile station;

estimating communication quality based on the positional information obtained from the mobile station; and

determining whether there is any radio-wave amplifier present on a communication path using the estimated communication quality and the measured communication quality information.

20. A wireless communication system including a base station and a mobile station comprising:

an obtainer that obtains measured communication quality information and positional information from the mobile station;

a communication quality estimator that estimates a communication quality based on the positional information obtained from the mobile station;

a communication path determiner that determines whether there is any radio-wave amplifier present on a communication path using the estimated communication quality estimated by the communication quality estimator and the measured communication quality information obtained by the obtainer; and

a communication quality improvement candidate determiner that identifies the candidate for improving communication quality related to the communication path determined by the communication path determiner, the candidate being based on communication quality.