Method of auditing alarms in a CDMA-2000 system

• US 7,813,728 B2
• Filed: 05/28/2004
• Issued: 10/12/2010
• Est. Priority Date: 05/29/2003
• Status: Active Grant

• Current Assignee: Transpacific Sonic LLC (Intellectual Ventures LLC)
• Original Assignee: Transpacific Sonic LLC (Intellectual Ventures LLC)
• Inventors: Kim, Heung Ryong
• Primary Examiner(s): Pérez-Gutiérrez; Rafael
• Assistant Examiner(s): Donado; Frank
• Application Number:
  US10/555,825
• Publication Number:
  US 20070041354A1
• Time in Patent Office: 2,328 Days
• Field of Search: 370/342, 370/249, 370/338, 455/70, 455/67.4
• US Class Current: 455/423
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition

Abstract

The present invention relates to a method for auditing alarms between a base station manager (BSM) and subsystems in a CDMA-2000 1x system that allows a reduction in the total amount of signals by having both systems exchange their own information instead of having lower systems report to upper systems one-way as in a conventional system. In particular, the method continuously forces the alarms that do not coincide between a BSM and subsystems to coincide by means of a 2-way communication method, where a BSM and each subsystem exchange their own information. The method makes the alarm state coincident between a BSM and each subsystem and keeps the load on the communication line between a BSM and a control station to a minimum. The operator can ascertain the real state of the present system with only a BSM, and take prompt action. Thus, the method contributes to improvement in call quality.

Claims

1. A method of auditing alarms in a CDMA-2000 1x system, comprising:

periodically receiving an audit request signal at a subsystem from a base station manager (BSM), wherein the BSM manages target boards of the subsystem and the audit request signal includes a predetermined bit map indicating alarm information on the target boards of the subsystem that are managed by the BSM;

comparing, at the subsystem, an alarm for each target board managed by the subsystem with the received alarm information; and

transmitting an alarm report signal to the BSM from the subsystem, wherein the alarm report signal includes information on non-coincident alarms.

2. The method of claim 1, wherein the audit request signal comprises an alarm code for each target board of the subsystem, and wherein the alarm codes are obtained from an alarm database.

3. The method of claim 1, wherein the predetermined bit map comprises one bit on/off information for an alarm unique to each target board of the subsystem.

4. The method of claim 1, wherein transmitting the alarm report signal comprises:

checking whether the audit request signal has been received from the BSM;

determining whether any alarm of a given target board is to be selected;

responsive to determining a first alarm for the given target board is selected, terminating the transmitting of the alarm report signal;

responsive to determining that no alarms for the given target board are selected, reading alarm information maintained by the BSM from the predetermined bit map;

comparing states of the BSM and the subsystem for the first alarm;

selecting an alarm if both states are coincident; and

transmitting on/off information of the selected alarm to the BSM.

5. The method of claim 1, further comprising reporting to an operator the non-coincident alarms.

6. A method of auditing alarms in a CDMA-2000 1x system, comprising:

periodically transmitting an audit request signal to a first subsystem from a base station manager (BSM), wherein the BSM manages target boards of the first subsystem and the audit request signal includes a predetermined bit map indicating alarm information on the target boards of the first subsystem that are managed by the BSM; and

receiving an alarm report signal from the first subsystem at the BSM, wherein the alarm report signal includes information on non-coincident alarms.

7. The method of claim 6, further comprising:

determining that there is no subsystem to be selected; and

terminating the transmitting of the audit request signal.

8. The method of claim 6, further comprising:

determining that the first subsystem is selected; and

selecting an alarm code for each target board of the first subsystem.

9. The method of claim 6, further comprising selecting the first subsystem after registering a timer.

10. The method of claim 6, further comprising:

determining that an alarm code is selected; and

responsive to determining a corresponding alarm code is selected, reading the corresponding alarm code from an alarm database of the BSM.

11. The method of claim 10, further comprising:

responsive to determining that no alarm code is selected, transmitting the alarm audit request signal to the first subsystem; and

selecting a second subsystem.

12. The method of claim 6, further comprising setting an alarm as the predetermined bit map.

13. The method of claim 6, wherein the predetermined bit map comprises one bit on/off information for an alarm unique to each target board of the first subsystem.

14. A method of auditing alarms in a CDMA-2000 1x system, comprising:

receiving an audit request signal at a subsystem from a base station manager (BSM), wherein the BSM manages target boards of the subsystem and the audit request signal includes a predetermined bit map indicating alarm information on the target boards of the subsystem that are managed by the BSM;

comparing, at the subsystem, an alarm for each target board managed by the subsystem with the received alarm information; and

transmitting an alarm report signal to the BSM from the subsystem, wherein the alarm report signal includes information on non-coincident alarms.

15. The method of claim 14, further comprising:

checking that the audit request signal has been received from the BSM; and

selecting a first alarm for a target board.

16. The method of claim 15, further comprising:

determining that the first alarm of the target board is selected; and

terminating transmitting the alarm report signal.

17. The method of claim 14, further comprising:

determining that a first alarm is not selected;

reading the alarm information maintained by the BSM from the predetermined bit map, wherein the alarm information comprises a state; and

comparing states from the predetermined bit map and from the subsystem for the first alarm.

18. The method of claim 17, further comprising:

determining that both states are coincident;

responsive to determining both states are coincident, selecting a second alarm for a target board; and

responsive to determining both states are not coincident, transmitting on/off information of the first alarm to the BSM.

19. The method of claim 14, wherein the predetermined bit map comprises one bit on/off information for an alarm unique to each target board of the subsystem.