RADIO ACCESS NETWORK MANAGEMENT DEVICE, FACILITY PLAN SUPPORT SYSTEM, AND FACILITY PLAN SUPPORT METHOD USED THEREFOR

• US 20100273493A1
• Filed: 12/08/2008
• Published: 10/28/2010
• Est. Priority Date: 12/12/2007
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Kobayashi, Kosei, Watanabe, Yoshinori, Matsunaga, Yasuhiko
• Application Number:
  US12/747,107
• Publication Number:
  US 20100273493A1
• Time in Patent Office: Days
• US Class Current: 455/446
• CPC Class Codes: H04L 41/147 for predicting network behaviour
• CPC Class Codes: H04L 41/149 for prediction of maintenance
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 88/18 Service support devices; Network management devices

Abstract

A radio access network management device capable of estimating the resource utilization ratio of an additionally installed radio base station to predict the date on which the next additional installation is required. The radio access network management device comprises a means for obtaining traffic demand per unit area for existing radio cells around the position at which a radio base station is additionally installed from the coverage of the existing radio cells and the time series of the past communication traffic statistics, a means for estimating the coverage of the radio cells after the additional installation of the radio base station, a means for predicting the traffic demand of the radio cells after the additional installation thereof from the coverage and traffic demand per unit area, and a means for predicting future communication quality from the predicted traffic demand.

Claims

1. A radio access network management apparatus, comprising:

a calculator for calculating a traffic demand per a unit area of existing radio cells around a position where a radio base station will be installed additionally;

an estimating unit for estimating a cover area of each radio cell after said additional installation of said radio base station;

a predicting unit for predicting a traffic demand of each radio cell after said additional installation of said radio base station based on said cover area and said traffic demand per a unit area; and

a predicting unit for predicting a future communication quality based on the predicted traffic demand.

2. A radio access network management apparatus according to claim 1, wherein said traffic demand per a unit area is calculated based on said cover area of existing radio cells and time-series of a past communication traffic statistic.

3. A radio access network management apparatus according to claim 1, wherein said traffic demand per a unit area is calculated based on said cover area of existing radio cells and a population predicted value of said cover area of existing radio cells.

4. A radio access network management apparatus according to claim 1, wherein said cover area of each radio cell is calculated in proportion to a building floor space in the concerned area.

11. A radio access network management apparatus according to claim 2, wherein said cover area of each radio cell is calculated in proportion to a building floor space in the concerned area.

12. A radio access network management apparatus according to claim 3, wherein said cover area of each radio cell is calculated in proportion to a building floor space in the concerned area.

5. An installing plan support system, comprising:

a calculator for calculating a traffic demand of existing radio cells per a unit area around the position where a radio base station will be installed additionally;

an estimating unit for estimating a cover area of each radio cell after said additional installation of said radio base station;

a predicting unit for predicting a traffic demand of each radio cell after said additional installation of said radio base station based on said cover area and said traffic demand per a unit area; and

a predicting unit for predicting the future communication quality based on the predicted traffic demand.

6. A facility plan support method, said method comprising the steps of:

for calculating a traffic demand per a unit area of existing radio cells around a position where a radio base station will be installed additionally;

estimating a cover area of each radio cell after said additional installation of said radio base station;

predicting a traffic demand of each radio cell after said additional installation of said radio base station based on said cover area and said traffic demand per a unit area; and

predicting the future communication quality based on the predicted traffic demand.

7. An installing plan support method according to claim 6, wherein said traffic demand per a unit area is calculated based on a cover area of said existing radio cells and time-series of a past communication traffic statistic.

8. An installing plan support method according to claim 6, wherein said traffic demand per a unit area is calculated based on a cover area of said existing radio cells and a population predicted value of a cover area of said existing radio cells.

9. An installing plan support method according to claim 6, wherein said cover area of each radio cell is calculated in proportion to a building floor space in the concerned area.

13. An installing plan support method according to claim 7, wherein said cover area of each radio cell is calculated in proportion to a building floor space in the concerned area.

14. An installing plan support method according to claim 8, wherein said cover area of each radio cell is calculated in proportion to a building floor space in the concerned area.

10. A program for a radio access network management apparatus, wherein said program makes said radio access network management apparatus execute:

a calculating processing for calculating a traffic demand per a unit area of existing radio cells around the position where a radio base station will be installed additionally;

an estimating processing for estimating a cover area of each radio cell after an additional installation of said radio base station;

a predicting processing for predicting a traffic demand of each radio cell after an additional installation of said radio base station based on said cover area and said traffic demand per a unit area; and

a predicting processing for predicting a future communication quality based on the predicted traffic demand.