KR20070040089A - Method for restoration using redundancy system in cdma base station - Google Patents

Abstract

The present invention relates to a recovery method using a redundancy system in a CDA base station. In a failure recovery method using a redundancy system in a CDM base station, a process of a management system checking a state of a redundancy system when a failure of an active system occurs. And when the state inspection result of the redundancy system is normal, transmitting, by the management system, shape information of the failed active system to the redundancy system, and after the transmitting, the management system sends the redundancy system to the redundancy system. Including the process of requesting the system to run as an active system function, it is possible to configure a system having a fault-tolerant structure with one redundancy system, thereby reducing the cost. In addition, since the redundancy system operates in a separate system unit rather than being driven in a unit unit inside one system, there is an advantage in that the function of the entire system is not stopped even when the system is stopped. In addition, the method of the present invention has the advantage that the function of the entire system is not stopped because the redundancy system is first driven as an active system and then the operation of the failed system is stopped.

Mobile terminal, CDMA base station, redundancy system, security function.

Description

Recovery method using redundancy system in CDM base station {METHOD FOR RESTORATION USING REDUNDANCY SYSTEM IN CDMA BASE STATION}

1 is a diagram showing the configuration of a redundancy system in an existing CDMA base station;

2 is a diagram illustrating a recovery process of a redundancy system in an existing CDMA base station.

3 is a diagram illustrating a configuration of a redundancy system in a CDMA base station according to an embodiment of the present invention.

4 is a flowchart illustrating a recovery process of a redundancy system in a CDMA base station according to an embodiment of the present invention;

5 is a diagram illustrating a recovery process of a redundancy system in a CDMA base station according to an embodiment of the present invention.

The present invention relates to a CDA base station, and more particularly, to a recovery method using a redundancy system.

The use of mobile communication terminals is increasing rapidly due to the convenience of portable. With the rapid increase in the use of mobile communication terminals, service providers (terminal manufacturers) are competitively developing terminals having more convenient functions to secure a large number of users. E.g. The mobile communication terminal includes a phone book, a game, a short message, an internet, an e-mail, a morning call, a file viewer, a file transfer. It provides various additional functions such as automatic answering function and camera function.

As the functions of the mobile communication terminal have been greatly developed, it is difficult to maintain security for places where privacy or confidentiality is required.

Of course, in order to solve the problem, a method for controlling a security related function, such as the camera function, has been devised for a CDMA base station directly.

However, since the security-related functions must always be provided without interruption, a redundancy system based on a fault tolerance structure is used.

The redundancy system is also used in the CDMA base station.

1 shows the configuration of a redundancy system in an existing CDMA base station.

Referring to FIG. 1, the system 100 is a CDMA base station system that is in charge of processing and controlling functions of a general CDMA base station. The main processor 110 is a main control unit and is in charge of processing and controlling the redundancy function.

Active units 130 and 140 are responsible for security functions. For example, it is responsible for the security setting function to prevent the shooting or copying function of the mobile communication terminal.

The redundancy unit 120 is an auxiliary unit for performing the same function when a failure occurs in the active units 130 and 140.

The antenna 150 is used to radiate a radio frequency (RF) signal.

2 shows a recovery process of a redundancy system in an existing CDMA base station.

Referring to FIG. 2, in operation 210, the main processor 110 checks the occurrence of a failure of the active units 130 and 140.

If a failure occurs in any of the active units 130 or 140 in the active unit 130 or 140 in step 220, the main processor 110 performs the function of the redundancy unit 120 in step 230. 140). That is, the redundancy unit 120 operates as the active units 130 and 140.

Thereafter, when the failure of the active unit 130 or 140 having failed in operation 240 is recovered, the main processor 110 resumes the function of the active unit 130 or 140 in which the failure has been restored in operation 250.

Thereafter, the main processor 110 switches the function of the redundancy unit 120 performing the functions of the active units 130 and 140 back to the standby state.

The existing redundancy system is difficult to be applied to systems having different structures because the multiple functions configured as a unit operate in one system and the main processor 110 in the system is in charge of processing and controlling the redundancy functions. have.

In addition, there is a problem that the redundancy function does not operate when a failure occurs in a system other than a failure in one unit.

Accordingly, an object of the present invention is to provide a recovery method using a redundancy system in a CDA base station, which has a redundancy function even when a system-level failure occurs and is applicable to other system structures.

The method of the present invention for solving the above problems is a failure recovery method using a redundancy system in the CDM base station, when the failure of the active system, the management system checks the state of the redundancy system, and the state of the redundancy system If the inspection result is normal, the management system transmits the shape information of the failed active system to the redundancy system, and after the transmission process, the management system is driven to the redundancy system to operate the redundancy system as an active system function. Characterized in that it comprises a process of requesting to do.

Another method of the present invention for solving the problem is a method of recovering a failure of a management system when a failure of an active system in the CDM base station, the management system is to send the shape information of the active system with the failure to the redundancy system Transmitting, and after the transmitting, the management system requests the redundancy system to operate the redundancy system as an active system function, and the redundancy system received the driving request is driven by the function of the active system. Starting process, and after the driving start process, the management system comprises the step of requesting to stop the function to the active system.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of related well-known technologies or configurations will be omitted when it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention.

Hereinafter, the present invention will be described a recovery method using a redundancy system in the CDA base station.

3 illustrates a configuration of a redundancy system according to an embodiment of the present invention.

Referring to FIG. 3, the active system A 330 performs a security function. For example, it is responsible for the security setting function to prevent the shooting or copying function of the mobile communication terminal.

Active system B 340 performs a security function. Unlike the active system A (330) is responsible for the security setting release function so that the shooting or copying function of the mobile communication terminal operates normally.

The redundancy system 350 is an auxiliary system for performing the same function when a failure occurs in the active system A 330 or the active system B 340.

Main processors 338, 348, and 358 are used to drive and maintain respective system functions.

The units 336, 346, and 356 convert the transmission information of each system into a radio frequency (RF) signal, and convert the RF signal to the main processor when receiving the information.

The switches 332, 334, 342, 344, 352, and 354 prevent the output of the active system and the redundancy system from colliding with each other. In the normal driving state, the active system switches A 332 and 342 and the switches 352 and 354 of the redundancy system do not operate.

If a failure occurs in the active system, switch A 332 or 342 of the failed system does not operate and switch A 352 or switch B 354 of the redundancy system operates.

The switches B 334 and 344 of the active system are present for the case of switching to the redundancy system.

 Local area network (LAN) (TCP / IP) 360 is a type of communication network that connects several security systems installed in each area. The security system may use Transmission Control Protocol / Internet Protocol (TCP / IP).

The management program 370 is a program that performs operations and maintenance functions of the security system. When a failure occurs in the security system (the active system A 330 or the active system B 340 in the present invention), the redundancy system 350 Determine whether to drive the redundancy system 350 according to the state of). In the present invention, the management program 370 is hereinafter referred to as a security program or management system.

4A and 4B illustrate a recovery process of a redundancy system according to an embodiment of the present invention.

Referring to FIG. 4, the security program 370 checks whether the active systems 330 and 340 have failed, as in step 405 of FIG. 5. If a failure occurs, the security program 370 proceeds to step 410 to check the state of the redundancy system 350 as shown in step 530 of FIG. 5.

The normal state in the redundancy system 350 is when there is no obstacle and the operating state is a redundancy state.

In step 415, if the redundancy system 350 is not in a normal state, the security program 370 proceeds to step 420 to maintain the current state.

If the redundancy system 350 is in a normal state in step 415, the security program 370 proceeds to step 425 and the shape information of the active systems 330 and 340 as shown in step 540 of FIG. 5. Transmit to system 350.

The shape information is shown in Table 1 below.

number Shape information One Active system type 2 Tx Attenuate 3 Transmission On / Off Information by Frequency Allocate

In Table 1, the baby active system type is used to distinguish whether the active systems 330 and 340 are A type or B type.

In step 430, the security program 370 checks whether there is a response to the shape information of the transmitted active system from the redundancy system 350.

If there is no response in step 430, the security program 370 proceeds to step 420 to maintain the current state.

If there is a response in step 430, the security program 370 proceeds to step 435 and requests the redundancy system 350 to operate as an active system function as shown in step 550 of FIG. 5.

In operation 440, the redundancy system 350 that receives the driving request stores the received active system shape information in PLD (Program Loaded Data) and transmits the result to the security program 370. The PLD is the location where the program is stored.

Thereafter, the security program 370 receives the result transmitted by the redundancy system 350 in step 445 as shown in step 560 of FIG. 5. The security program 370 performs the following process even when the result is not received.

Thereafter, in step 450, the security program 370 requests the failure of the active system 330 or 340 in which the failure occurs, as in step 570 of FIG.

Then, when the security program 370 detects that the failure occurred in the active system 330 or 340 is recovered in step 455, the process proceeds to step 460 and the active system 330 or in which the failure is recovered as shown in step 580 of FIG. The driving request is made to 340.

Thereafter, in step 465, the security program 370 checks whether there is a response from the active system 330 or 340 that made the driving request, as in step 585 of FIG.

If there is no response in step 465, the security program 370 proceeds to step 420 to maintain the current state.

If there is a response in step 465, the security program 370 proceeds to step 470 and requests the redundancy system 350 to stop the currently executing active system function as shown in step 590 of FIG.

The redundancy system 350 requested to stop the function changes the system type to the redundancy type in step 475 and stores the changed state in the PLD, and then terminates the algorithm according to the present invention.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, since the present invention copies the function related information of the active system to the redundancy system, there is an advantage that the redundancy system can operate regardless of the existing functions.

And one redundancy system can be configured to have a system having a fault tolerance structure has the advantage of reducing the cost. In addition, since the redundancy system operates in a separate system unit rather than being driven in a unit unit inside one system, there is an advantage in that the function of the entire system is not stopped even when the system is stopped.

 In addition, the method of the present invention has the advantage that the function of the entire system is not stopped because the redundancy system is first driven as an active system and then the operation of the failed system is stopped.

Claims (9)

In the failure recovery method using the redundancy system in the CDA base station, In the event of an active system failure, the management system checks the status of the redundancy system, When the state inspection result of the redundancy system is normal, transmitting, by the management system, shape information of the failed active system to the redundancy system; After the transmission, the management system requesting the redundancy system to operate the redundancy system as an active system function. The method of claim 1, After the driving request process, the management system further comprises a step of requesting a function stop to the failed active system. The method of claim 1, And if the state check result of the redundancy system is not normal, the management system further comprises maintaining the current state. The method of claim 1, The condition of the steady state of the redundancy system is characterized in that the redundancy system is uninterrupted and the operating state is a redundancy state. The method of claim 1, The shape information is characterized in that the type (Type) of the active system, the transmission attenuation rate (Tx Attenuate) of the active system, On / Off information for each frequency allocation (Frequency Allocate) of the active system The method. In the failure recovery method of the management system when the active system failure in the CDM base station, The management system transmits the shape information of the failed active system to the redundancy system; After the transmission process, the management system requests the redundancy system to operate the redundancy system as an active system function; The redundancy system receiving the driving request starts driving as a function of the active system; And after the driving start process, the management system requesting the active system to stop functioning. The method of claim 6, Checking whether the failure of the active system has been recovered after the function stop request process to the active system; Requesting to start driving to the active system where the failure is restored when the failure of the active system is restored; After the driving start request process, the management system requesting the redundancy system to stop performing the active system function of the redundancy system; After the stopping request process, the redundancy system further comprises the step of stopping the function of the active system being performed and switching the system type to the redundancy system, and then storing the switching state in PLD (Program Loaded Data). The method. The method of claim 6, The redundancy system receiving the shape information of the active system further comprises storing the shape information of the active system in a PLD. The method of claim 6, The shape information is characterized in that the type (Type) of the active system, the transmission attenuation rate (Tx Attenuate) of the active system, On / Off information for each frequency allocation (Frequency Allocate) of the active system The method.

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