METHOD AND SYSTEM FOR MEASURING QUALITY OF WIRELESS NETWORK

• US 20090036116A1
• Filed: 03/02/2007
• Published: 02/05/2009
• Est. Priority Date: 03/03/2006
• Status: Abandoned Application

• Current Assignee: KT Corporation
• Original Assignee: KT Corporation
• Inventors: Kim, Kyung-Yup, Kim, Shin-Jae
• Application Number:
  US12/281,429
• Publication Number:
  US 20090036116A1
• Time in Patent Office: Days
• US Class Current: 455/423
• CPC Class Codes: H04B 17/373 Predicting channel quality or other radio frequency [RF] parameters
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: H04W 88/14 Backbone network devices

Abstract

The present invention relates to a method for measuring quality of a wireless network of a mobile communication system and a system therefor, and the method for measuring quality of a wireless network according to the present invention includes a wireless quality analysis server requesting a location service about a specific subscriber terminal to a mobile switching center; the mobile switching center transmitting a location report request about the subscriber terminal to a radio network controller; the radio network controller transmitting a wireless quality measurement request to the subscriber terminal based on the location report request; the radio network controller receiving a wireless quality measurement report from the subscriber terminal; and the radio network controller extracting data for wireless quality measurement from the wireless quality measurement report and transmitting the data to the wireless quality analysis server.

Claims

1. A method for measuring a wireless quality of a wireless network using a location service in a mobile communication system composed of a wireless quality analysis server for analyzing the wireless quality, a mobile switching center and a base station controller, the method comprising:

(a) the wireless quality analysis server requesting a location service about a specific subscriber terminal to the mobile switching center;

(b) the mobile switching center transmitting a location report request of the subscriber terminal to the base station controller;

(c) the base station controller transmitting a wireless quality measurement request to the subscriber terminal based on the location report request;

(d) the base station controller receiving a wireless quality measurement report from the subscriber terminal; and

(e) the base station controller extracting data for wireless quality measurement from the wireless quality measurement report and transmitting the data to the wireless quality analysis server.

2. The method for measuring a wireless quality of a wireless network according to claim 1, further comprising:

before the step (b), in the case that the subscriber terminal is in an idle state, the mobile switching center changing a state of the subscriber terminal into an active state.

3. The method for measuring a wireless quality of a wireless network according to claim 1 or 2,

wherein, in the step (c), the base station controller transmits the wireless quality measurement request by each type of data for wireless quality measurement, and

wherein, in the step (d), the base station controller receives a single wireless quality measurement report including all data for wireless quality measurement.

4. The method for measuring a wireless quality of a wireless network according to claim 3,

wherein the base station controller periodically receives the wireless quality measurement report from the subscriber terminal.

5. The method for measuring a wireless quality of a wireless network according to claim 1 or 2,

wherein, in the step (e), the base station controller integrates the data for wireless quality measurement and round trip time (RTT) obtained from a base station, and

transmits to the wireless quality analysis server.

6. The method for measuring a wireless quality of a wireless network according to claim 1,

wherein the data for wireless quality measurement includes common pilot channel received signal code power (CPICH RSCP), common pilot channel signal strength (CPICH Ec/Io), BLER (Block Error Rate), user equipment transmitted power (Tx Power) and user equipment receiving-transmitting time difference (Rx-Tx Time Difference).

7. A method for measuring a wireless quality of a wireless network using a subscriber terminal of an idle state in a mobile communication system, the method comprising:

(a) transmitting a location registration order to the subscriber terminal of an idle state;

(b) receiving a location registration request from the subscriber terminal;

(c) extracting data for wireless quality measurement from the received location registration request; and

(d) analyzing a wireless quality of a wireless network based on the extracted data.

8. The method for measuring a wireless quality of a wireless network according to claim 7, further comprising:

after the step (b), updating location information of the subscriber terminal to a home location register.

9. The method for measuring a wireless quality of a wireless network according to claim 7 or 8,

wherein the data for wireless quality measurement includes Ec/Io and PH_Phase.

10. A method for measuring a wireless quality of a wireless network in a mobile communication system composed of a wireless quality analysis server for analyzing the wireless quality, a mobile switching center and a base station controller, the method comprising:

(a) the wireless quality analysis server setting a collection range of data for wireless quality measurement and transmitting related information to the base station controller;

(b) the base station controller transmitting a wireless quality measurement request to a subscriber terminal having call setup in the collection range;

(c) the base station controller receiving a wireless quality measurement report from the subscriber terminal; and

(d) the base station controller extracting data for wireless quality measurement from the wireless quality measurement report and transmitting the data to the wireless quality analysis server.

11. The method for measuring a wireless quality of a wireless network according to claim 10,

wherein, in the step (b), the base station controller transmits the wireless quality measurement request by each type of data for wireless quality measurement, and

wherein, in the step (c), the base station controller receives a single wireless quality measurement report including all of the data for wireless quality measurement.

12. The method for measuring a wireless quality of a wireless network according to claim 10 or 11, further comprising:

after the step (c), the base station controller transmitting the wireless quality measurement request having a predetermined transmission period to the subscriber terminal,

wherein the base station controller receives the wireless quality measurement report from the subscriber terminal according to the transmission period.

13. The method for measuring a wireless quality of a wireless network according to claim 10 or 11,

wherein, in the step (d), the base station controller integrates the data for wireless quality measurement and round trip time (RTT) obtained from a base station, and

transmits to the wireless quality analysis server.

14. The method for measuring a wireless quality of a wireless network according to claim 10,

wherein the wireless quality measurement report of the step (c) is any one of a periodic pilot strength measurement message (PPSMM) and a pilot strength measurement message (PSMM).

15. The method for measuring a wireless quality of a wireless network according to claim 10, wherein, the step (d) includes:

the base station controller extracting data for wireless quality measurement from the wireless quality measurement report; and

the base station controller integrating a latest round trip delay (RTD) received periodically from the base station and the extracted data to generate a wireless quality measurement result message, and transmitting the message to the wireless quality analysis server.

16. A method for measuring a wireless quality of a wireless network using a subscriber terminal performing handover in a mobile communication system composed of a wireless quality analysis server for analyzing the wireless quality and a base station system, the method comprising:

(a) the base station system receiving a handover request message from a subscriber terminal entering a handover area;

(b) the base station system transmitting a handover direction message to the subscriber terminal; and

(c) the base station system extracting data for wireless quality measurement from the handover request message and transmitting the data to the wireless quality analysis server.

17. The method for measuring a wireless quality of a wireless network according to claim 16,

wherein, in the step (a), the base station system receives any one of a pilot strength measurement message (PSMM) and a measurement report (MR) message from the subscriber terminal entering a handover area.

18. A system for measuring a wireless quality of a wireless network in a mobile communication system, the system comprising:

a mobile switching center for executing location report control about a subscriber terminal based on a location service;

a base station controller for receiving a location report order about a specific subscriber terminal from the mobile switching center, transmitting a wireless quality measurement request to the specific subscriber terminal, and receiving a response to the request; and

a wireless quality analysis server for receiving data extracted from the response for wireless quality measurement from the base station controller, and analyzing a wireless quality of a wireless network based on the data.

19. The system for measuring a wireless quality of a wireless network according to claim 18,

wherein, in the case that the subscriber terminal to execute location report control is in an idle state, the mobile switching center temporarily activates the subscriber terminal to execute location report control.

20. The system for measuring a wireless quality of a wireless network according to claim 19,

wherein the wireless quality analysis server sets a collection range of data for wireless quality measurement, and transmits related information to the base station controller, and

wherein the base station controller receives a wireless quality measurement response from the subscriber terminal having call setup in the collection range.

21. The system for measuring a wireless quality of a wireless network according to claim 20,

wherein the base station controller transmits a wireless quality measurement request to the subscriber terminal by each type of data for wireless quality measurement, and receives a single wireless quality measurement response including all of the data for wireless quality measurement.

22. An apparatus for measuring a wireless quality of a wireless network in a mobile communication system, the apparatus comprising:

a collection range setting means for setting a collection range of data for wireless quality measurement in the wireless network;

a data collecting means for collecting data for wireless quality measurement from a subscriber terminal having call setup in the collection range set by the collection range setting means;

a wireless quality analysis means for analyzing the wireless quality of an area where the subscriber terminal is located, using the data for wireless quality measurement collected by the data collecting means; and

an outputting means for outputting a result analyzed by the wireless quality analysis means.