Method of auditing alarms in a cdma2000 system

• US 20070041354A1
• Filed: 05/28/2004
• Published: 02/22/2007
• 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
• Granted Patent: US 7,813,728 B2
• Time in Patent Office: Days
• US Class Current: 370/342
• 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 transmitting an audit request signal to a subsystem from a BSM, wherein the BSM manages target boards of the subsystem and the audit request signal includes alarm information on the target boards of the subsystem that are maintained by the BSM;

receiving the audit request signal from the BSM at the subsystem;

comparing an alarm for each target board maintained 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 step of transmitting an audit request signal comprises:

selecting the subsystem after registering a timer;

determining whether any subsystem is to be selected;

terminating the step of transmitting an audit request signal if no subsystem is selected;

selecting an alarm code for each target board of the subsystem if a subsystem is selected;

determining whether any alarm code is to be selected;

transmitting the alarm audit request signal to the corresponding subsystem and then returning to the step of selecting a subsystem, if no alarm code is selected;

reading the corresponding alarm code from an alarm database of the BSM if an alarm code is selected; and

setting the alarm as a predetermined bit map, and then transmitting the alarm to each subsystem.

3. The method of claim 2, wherein the 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 the step of transmitting an alarm report signal comprises:

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

checking if the audit request signal has been received;

selecting an alarm for a target board if the audit request signal has been received;

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

terminating the step of transmitting an alarm report signal if an alarm is selected;

reading alarm information maintained by the BSM from a bit map if no alarm is selected;

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

returning to the step of selecting an alarm if both states are coincident; and

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