KR20040073220A - Method for gathering alarm in base station system - Google Patents

Abstract

PURPOSE: A method for collecting alarm in a base station system is provided to collect alarm while segmented data are transmitted, thereby executing remote downloading in collecting and processing software alarm of power amplifiers. CONSTITUTION: An alarm collection application block receives a firmware image download message from the second loader(400). The alarm collection application block confirms whether the power amplifying units are normal(410). If not, the alarm collection application block sends an error message to the second loader(411). If so, the alarm collection application block transmits a confirmation response message including manufacturer ID information of the power amplifying units to the second loader(420). The alarm collection application block transmits a firmware downloading request message to the power amplifying units(430). The alarm collection application block confirms an error in a response(440). If the power amplifying units transmit no response or an error is reported, the alarm collection application block transmits an error message to the second loader(441). The alarm collection application block judges whether frequency of retransmission is the maximum transmission frequency(443). The alarm collection application block collects alarm of the power amplifying units(450). The alarm collection application block confirms whether the remote downloading mode is converted into another mode(460). If not, an error is generated(461). A response message including response success information is transmitted to the second loader(470). A timer for collecting alarm is stopped(480).

Description

Method for gathering alarm in base station system

The present invention relates to an alarm collection method of a base station system, and more particularly, to a method of collecting an alarm when serial communication is performed in a code division multiple access base station system.

In general, the code division multiple access base station system collects an alarm to check the status of each board of the base station. A power amplifier unit (PAU), a module for amplifying an RF signal in the alarm collection, is an important device for performing communication. The alarm collection of such a power amplification unit will be described with reference to the drawings.

1 is a block diagram showing a base station system for alarm collection of a conventional power amplification unit.

Referring to FIG. 1, a base station system 10 includes a plurality of power amplification units (PAUs) (PAUs) 13, which are modules for amplifying an RF signal, and a plurality of PAUs in one port. A board (BRAA) (BRAA) 12 which collects alarms of the PAUs 13 by connecting the 13 and the base station manager 20 by processing the collected alarms. (BCAA: BTS Common Alarm Board Assembly, BCAA).

The BRAA 12 collects hardware alarms of each board and collects alarms of a plurality of PAUs 13 through RS-485 communication with the PAUs 13. The BRAA 12 is a hardware block that does not include application software.

When there is an alarm collection request from an operator in the base station system 10 configured as described above, the BRAA 12, which is an alarm collection board of the base station 10, sequentially transmits an alarm request message for each PAU 13 to each PAU ( 13) collect alarms through response messages to alarm requests. The BRAA 12 then sends the collected alarms periodically (currently 100 msec) to the BCAA 11.

The BCAA 11 then reports the collected alarms to the base station manager 20 after comparing and reprocessing the existing alarm data.

However, since the BRAA 12 is an alarm collection and processing operation that does not perform any other operation, there is no concept of other block intervention or multi operation. That is, since only the alarm collection operation is performed, the BRAA 12 does not perform flow control on communication with the PAUs 13.

The base station system performs various functions of controlling the PAUs 13, reading information of the PAUs 13, and downloading the firmware of the PAUs 13 directly from the system according to the operator's requirements. . However, the processor BCP driving the BCAA 11 does not perform an operation for collecting an alarm and reporting to a higher level, for example, for downloading a firmware and transmitting a continuous data.

In order to collect such alarms, direct communication should be made between BCAA 11 and BRAA 12 and between BRAA 12 and PAUs 13, so that RS-485 communication is used in a code division multiple access base station system. The RS-485 communication is one of serial communication interface standards and connects up to 32 devices. It uses a multi-drop method, which allows multiple devices to be connected to a single serial port and transmit data arbitrarily.

However, the serial communication using the multi-drop method has a problem in that alarm collection of the PAUs is impossible during the time when a specific PAU occupies the serial communication port for a long time for firmware download request and response.

Accordingly, an object of the present invention is to provide an alarm of a plurality of power amplification units communicating with one serial port when serial communication (RS-485) is performed using a multi-drop method between a collector and a specific power amplification unit in a base station system. The purpose is to provide a method of collecting.

Another object of the present invention is to provide a method of collecting alarms of a plurality of power amplifying units communicating with one serial port simultaneously with downloading a firmware image occupying a serial communication port for a long time.

The method for achieving the object of the present invention is a base station system comprising an alarm collecting unit for collecting a communication alarm from a plurality of power amplification units connected to one serial port, and reporting the collected alarm to a base station management unit, A method of collecting alarms from the plurality of power amplification units during remote downloading, the method comprising: downloading a firmware image for operating the power amplification units in accordance with a remote download request of the base station manager to generate a plurality of partial image data; And transmitting the request message including the divided partial image data to a specific power amplifying unit and receiving a response message to the request message from the specific power amplifying unit. Collect your alarms A second step of reporting to the base station management unit; and a third step of reporting the result of remote downloading of the firmware image to the base station management unit when the transmission of all the divided partial image data is completed by repeating the second process. Characterized in that it comprises a.

Another method for achieving the object of the present invention is a base station system comprising an alarm collecting unit for collecting a communication alarm from a plurality of power amplification units connected to one serial port, and reporting the collected alarm to a base station management unit, A method for reporting an alarm in a plurality of power amplifying units during remote downloading, the method comprising: a first step of receiving a request message including divided partial image data of a firmware image for performing remote downloading of the base station manager; A second process of transmitting a response message including processing result information on the request message to the alarm collection unit, and transmitting an alarm response message including its own alarm information to the alarm collection unit according to an alarm request of the alarm collection unit; Repeating the first to second process, all parts If not the data reception is completed, from, alarm acquisition method characterized in that it comprises a third step of reporting the result of executing the remote downloading firmware image to the base station through the management unit, the alarm collection.

1 is a block diagram showing a base station system for alarm collection of a conventional power amplification unit;

2 is a block diagram illustrating a base station system for collecting alarms of power amplification units in accordance with an embodiment of the present invention;

3 illustrates a message format according to an embodiment of the present invention;

4 is a diagram illustrating instructions included in a message according to an embodiment of the present invention;

5 is a timing diagram illustrating an operation of collecting an alarm when remote downloading according to an embodiment of the present invention;

6 is a flowchart illustrating the operation of an alarm collection application block according to an embodiment of the present invention;

7 is a flowchart illustrating an alarm collection operation of FIG. 6 in more detail;

8 is a flowchart illustrating the operation of a power amplifying unit according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a block diagram illustrating a base station system for collecting alarms of power amplification units in accordance with an embodiment of the invention.

Referring to FIG. 2, the base station system 100 collects an alarm from a plurality of power amplification units 131, 132, 133, and the plurality of power amplification units 131, 132, 133, and the like. A collection unit (BAP) 120 and a base station control unit (BCP) 120 for processing the collected alarm and reporting to the external base station management unit 200.

The base station controller 110 receives firmware for driving the power amplification units 131, 132, 133, etc. from the base station manager 130 and transmits the firmware to the second loader 122 of the alarm collector 120. A base station fault block (BFH: BFH) 111 which compares and filters the alarms received from the first loader 112 and the alarm collection unit 120 with previous alarms and reports them to the base station manager 200. ) Is included. Here, the base station failure block 111 collects base station-wide hardware and software alarms, including alarms received from the alarm collector 120, processes the collected alarms, and reports the collected alarms to the base station manager 200.

The alarm collector 120 receives an alarm collection application block 121 for collecting and processing hardware alarms of a plurality of power amplification units 131, 132, and 133, and receives a firmware image from the first loader 112. And a second loader 122 for transmitting to the specific power amplification unit 131 through the alarm collection application unit 121.

In addition, the connection between the alarm collector 110 and the plurality of power amplification units 131, 132, and 133 uses RS-485 communication. In addition, it uses a multi-drop method, in which multiple devices are connected to one serial port and data can be transmitted arbitrarily. In this case, the alarm collection application block 121 is designed not to transmit data with one or more power amplification units at the same time because data collides on the bus when several devices are operated at the same time.

In addition, the alarm collector 110 communicates three power amplification units 130 per port in a multi-drop manner. Here, the number of power amplifying units communicating per port may be set differently. Communication operation and speed use 57.6 kbps, 1Start Bit, 8Bit data, No Parity bit, 1Stop bit. When the alarm collection unit 110 sends a request message to the specific power amplification unit 131, the power amplification unit 131 sends a response message. In this manner, the remaining power amplification units 132 and 133 wait for communication until the communication of the previous power amplification unit 131 is completed, that is, until a preset response time has elapsed. The message format for the communication between the alarm collector 120 and the power amplification unit 130 will be described with reference to FIG. 3.

Referring to FIG. 3, the size of each field is 1 byte or more, and frames according to the combination of the fields are arranged in 4 bytes. Due to this combination of fields, the remaining area is filled with dummy fields.

'Des. Addr. ' Field specifies the node to receive the frame, and the 'Src. Addr. ' Field specifies the node that transmits the frame. For example, the alarm collection unit 120 designates "00H", and the power amplification units designate PAU0 = "80H", PAU1 = "81H", and PAU2 = "82H", respectively.

The 'Length' field indicates the sum of sizes for the 'CMD', 'VAR', and 'DATA' fields in byte units, and the 'CMD' field indicates a request ID of the alarm collecting unit 120, that is, corresponding commands. Specify.

The 'VAR' field indicates an error cause of the instruction and response to the request. The placement of the field and the values used are specified differently according to the command specified in the 'CMD' field.

The 'DATA' field includes information according to a request and a response. The size, placement, and values used for the fields are specified differently for each command.

The 'END' field indicates the end of the frame and is fixed to the "CAH" value. Finally, the 'CRC' field is a 16 bit CRC (cyclic redundancy checking) value for information from the 'START' to the 'END' field. It includes.

The alarm collector 120 communicating in the message format of the communication transmits a message including a command to the power amplification units 131, 132, and 133 to perform a desired function. In this case, when the CRC error or the detection error of the 'END' field occurs in the data received from the power amplification units 131, 132, and 133, the alarm collection unit 120 retries the request up to three times. The power amplification units 131, 132, and 133 ignore the request and do not send any response when a CRC error or an 'END' field error occurs in the data received from the alarm collector 120. When the alarm collector 120 exceeds a range of field values in the received data or responds differently from the request, the power amplification units 131, 132, and 133 stop using the corresponding function and generate an alarm message. The generated alarm message is collected in the base station failure block 111.

In addition, the power amplification unit 130 responds to the alarm collection application unit 121 by displaying an error cause in the response when an error exists in the received data or an error exists in the performance result. Descriptions of the words sent from the alarm collection unit 120 to the power amplification units 131, 132, and 133 will be described with reference to FIG. 4.

Referring to FIG. 4, each command is assigned to "CMD" in the message field according to the execution of the command. "00H" is a command for instructing request for alarm information. And " 0AH " instructs the request to forcibly enable the power amplification unit 130, wherein " 1AH " supports the request to forcibly disable the power amplification unit 130, and the " 0BH " Is a control command that instructs a request for information such as serial number, manufacturer ID, and firmware version. &Quot; 13H " is a command indicating a remote download request and is performed according to the start, transfer or end information specified in the " VAR " field. Here, remote downloading is also referred to as remote fusing as a processing method for downloading the firmware image from the base station manager 200 to upgrade the firmware of the power amplification units 131, 132, and 133 remotely from the base station manager 200. .

In addition to the instructions shown in Table 2, " 0DH " to " 10H " are reserved in hardware by the base station and are not used in software.

According to the commands, the power amplification units 131, 132, and 133 are divided into a general operation mode, a remote downloading mode, or a mode corresponding to each command. These power amplification units 131, 132, 133 are set to a normal operation mode when the power is turned on / off and restarted, a "13H", that is, a firmware download request is specified in the "CMD" field, and a "VAR" field. If a start command is specified in the command, the mode is switched to the remote downloading operation mode. The power amplification units 131, 132, and 133 return to the normal operation mode when the termination command is specified in the "VAR" while maintaining the remote downloading operation mode. In this case, the power amplification units 131, 132, 133 are not switched to the operation mode of other commands in a state other than the normal operation mode, and thus only the return to the normal operation mode is possible.

An operation of performing alarm collection and remote downloading in the base station system is as follows.

In the case of remote downloading, the multi-drop transmission method occupies a long time for transmitting firmware image data. Periodic collection of software (S / W) alarms from the power amplification units 131, 132, 133 is not possible. The alarm collecting unit 120 divides the downloaded image data appropriately and collects the alarm between partial image data. This operation is described with reference to FIG. 5 as follows.

Referring to FIG. 5, when the operator selects a specific amplification unit 131 to request remote downloading, the second loader 122 receives a remote downloading request message from the base station manager 200 in step 300. The remote download request message is checked and the manufacturer ID request message is sent to the corresponding power amplification unit 131. Accordingly, the power amplification unit 131 transmits a response message including manufacturer ID information to the second loader 122.

In step 305, the second loader 122 transmits a firmware image download request message to the base station manager 200 and receives a response message for the firmware image download request from the base station manager 200. That is, the second loader 122 downloads the firmware image of the manufacturer included in the response message from the base station manager 200. Here, the other power amplifying unit 132 connected to the alarm collecting unit 120 through the same port cannot perform remote fusing while one power amplifying unit 131 performs remote downloading. The downloaded firmware image divides the image data for the power amplification unit 131 specified by the alarm collection loader 121 into 4 bytes to 3072 bytes (multiple of 4).

Then, if there is a request to start remote downloading from the base station manager 200 in step 310, the second loader 122 sends a request message including a start command to the power amplification unit 131. At this time, a timer that counts the maximum response wait time for the request message is driven. Accordingly, the power amplification unit 131 switches to the remote downloading operation mode by itself, and transmits a response message including the performance result information on the start command to the alarm collection application block 121. Here, the timer is driven at a predetermined cycle every time the request message is transmitted to the power amplification unit 131.

Then, in step 320, the alarm collection application block 121 performs an operation for alarm collection during the timer period, that is, before sending a response message for downloading to the alarm collection loader 122. In step 321, the alarm collection application block 121 transmits an alarm request message to the first power amplification unit 131 in step 321. Accordingly, the power amplification unit 131 receiving the alarm request message in step 322 transmits an alarm request response message including the result information of the alarm request message to the alarm collection application block 121. Next, the alarm collection application block 121 transmits the alarm request message to the next power amplification unit 132 in step 323, and receives a response message thereto in step 324. In step 325, the alarm request message is transmitted to the power amplification unit 133, and in step 326, a response message is received from the power amplification unit 133. When the alarm collection of all the power amplification units 131, 132, and 133 connected to one serial port of the alarm collection application block 120 is completed in step 327, the alarm collection application unit 121 is connected to the collected alarm. An alarm collection report message including information on the base station is transmitted to the base station manager 200 through the base station failure block 111.

Then, in step 330, the alarm collection application block 121 transmits a response message including the result of performing the remote download start command to the second loader 122.

In operation 340, the second loader 122 transmits the transmission message including the divided partial image data and the transmission command to the power amplification unit 131. Accordingly, the power amplification unit 131 receives and stores the partial image data, and transmits a response message including the processing result information to the alarm collection application block 121. Accordingly, in step 350, the alarm collection application block 121 sequentially collects alarms of the power amplification units 131, 132, and 133 in the same operation as step 320, and reports the alarm to the base station manager 200.

When the alarm collection is completed, in step 360, the second loader 122 transmits a response message including the partial image data transmission result information to the second loader 122 through the alarm collection application block 121. This partial image data transmission process (steps 340 to 360) is repeated until all of the divided partial image data are transmitted.

When all the partial image data is transmitted, in step 370, the second loader 122 transmits an end message including the result information of the end command of the remote downloading to the power amplification unit 131 through the alarm collection application block 121. send. Accordingly, the power amplification unit 131 ends the remote downloading according to the termination command, and transmits a response message including the processing result to the alarm collection application block 121.

Then, in step 380, the alarm collection application block 121 collects the alarm in the same operation as in step 350. When the alarm collection is completed, in step 390, the alarm collection application block 121 transmits a response message including the result information of the end command to the second loader 122. Accordingly, the second loader 122 reports the remote downloading result message to the base station manager 200.

The operation of the alarm collecting unit in the allah collecting operation as described above with reference to FIG. 6 is as follows.

Referring to FIG. 6, when the operator requests the second loader 122 to remotely download the firmware for operating the power amplification unit 131 specified through the base station manager 200, the alarm collection application in step 400. Block 121 receives the information of the designated power amplification unit 131 from the second loader 122, for example, an information confirmation message for requesting confirmation of the manufacturer ID, and transmits it to the power amplification unit 131. Then, in step 410, the alarm collection application block 121 checks whether the power amplification unit 131 is normal. If the check result is abnormal, the operation is terminated after transmitting the error message to the second loader 122 in step 411, and if normal, the check response message including the manufacturer ID information of the power amplification unit 131 is received in step 420. Send it to the loader.

Then, in step 430, the alarm collection application block 121 transmits a firmware download request message to the power amplification unit 131, and then checks whether there is a response error in step 440. In this case, when the collection operation block 121 transmits a request message for remote downloading to the power amplification unit 131, if there is no response from the power amplification unit 131 or if an error is reported through a response message, the collection operation block 121 is performed in step 441. Send an error message to the 2 loader. The collection application block 121 then receives a retransmission request message from the second loader 122. In this case, the alarm collection application block 121 compares whether the number of retransmissions is the maximum number of transmissions in step 443. As a result of the comparison, if the maximum number of transmissions is exceeded, the operation is terminated. If not, the operation 420 is performed. In contrast, when there is no response error, the alarm collection operation block 121 collects alarms of the power amplification units 131, 132, and 133 in step 450.

When the alarm collection is completed, the alarm collection operation block 121 checks whether the remote downloading operation mode is switched to another mode in step 460. If the check result is not switched, an error occurs in step 461, and if there is no switch, in step 470, a response message including response success information is transmitted to the second loader 122.

Then, in step 480, the timer for alarm collection stops and the operation ends. Here, the timer period is a response waiting time from the time when the alarm collection unit 120 completes data transmission to the time when the response reception from the power amplification unit 131 is successful. The communication time limit for the response of the power amplification unit is the response waiting time minus the frame transmission time. The communication (speak right) time limit for the maximum response obtained based on the maximum response waiting time is 1050 ms.

The alarm collection operation in the alarm collection application block 121 operation with reference to FIG. 6 will be described in more detail with reference to FIG. 7 below.

Referring to FIG. 7, in step 500, the alarm collection application block 121 sets the variable PAU_ID of the power amplification units 131, 132, and 133 to zero. Then, in step 510, the alarm request message is transmitted to the first power amplification unit 131, and in step 520, an alarm response message is received from the power amplification unit 131. Then, in step 530, it is checked whether PAU_ID is less than 3, the number of power amplification units connected to the serial port. If the check result is large, the alarm result collected in step 540 is reported to the base station manager 200 through the base station failure block 111 and ends. On the other hand, if it is less than 3, in step 531, PAU_ID is increased and then step 510 is performed.

Meanwhile, the operation of the designated power amplification unit will be described with reference to FIG. 8.

Referring to FIG. 8, the specific power amplification unit 131 receives an information request message requesting information for firmware image download from the alarm collection application block 121 in step 600. Then, the power amplification unit 131 transmits the manufacturer ID information to the alarm collection application block 121 by including the information request response message. If the remote download request message is received in step 620, the power amplification unit 131 checks "VAR" in the remote download request message in step 630 to check whether it is a start command. In step 631, a remote download is prepared for execution, and in step 632, a response message including the result information on the start command is transmitted. Then, in step 633, the alarm data is included in the alarm response message and transmitted according to the alarm request of the alarm collection application unit 121, and then step 620 is performed. On the other hand, if it is not the start command in step 630, it is determined whether the transmission command in step 640. In this case, in the case of the transmission command, the partial firmware image data received in step 641 is stored, and in step 642, a response message including the result information of the transmission command is transmitted to the alarm collection application block 121. Then send the alarm data.

If it is not the transmission command in step 640, the power amplification unit 131 checks whether the end message in step 650. In the case where the check result is the end message, the remote downloading is terminated in step 651, and in step 652, the result information of the end command is included in the response message and transmitted to the alarm collection application block 121. Then, in step 653, the power amplification unit 131 transmits the alarm data and then restarts in step 654 to execute a new firmware image generated by combining the received partial image data.

In the above-described embodiment, the alarm collection operation is performed between remote downloading of the power amplification unit. However, the alarm may be collected in the same manner as in the above-described embodiment in the command for transmitting other continuous data to the power amplification unit. Can be.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible 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 defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, when the command occupies the port for a long time to transmit data, the present invention divides the data and transmits the data so that an alarm can be collected between the divided data. This has the effect of being able to perform commands such as remote downloading while collecting and processing software alarms in the power amplifier.

Claims (7)

In a base station system including an alarm collecting unit for collecting communication alarms from a plurality of power amplification units connected to one serial port and reporting the collected alarms to a base station management unit, starting from the plurality of power amplifying units during remote downloading. In the method of collecting the alarm, A first process of downloading and dividing a firmware image for operating the power amplification units into a plurality of partial image data according to a remote download request of the base station manager; The base station management unit transmits a request message including the divided partial image data to a specific power amplifying unit, collects alarms of the plurality of power amplifying units as a response message to the request message is received from the specific power amplifying unit. The second process of reporting to And repeating the second process, when the transmission of all the divided partial image data is completed, a third process of reporting a result of performing remote downloading of the firmware image to the base station manager. . The method of claim 1, And identifying information of the specific power amplification unit to which the firmware image is to be downloaded according to the remote downloading request. The method of claim 1, Sending a request message to the specific power amplifying unit, the request message including a command for initiating the remote downloading prior to sending the request message including the divided partial image, and receiving a response message for the start command. And collecting the alarms of the plurality of power amplification units and reporting the alarms to the base station manager. The method of claim 1, When the transmission of all the divided partial image data is completed, transmitting the request message including a command for terminating the remote downloading to the specific power amplification unit and receiving a response message for the termination command. And collecting and reporting an alarm of a plurality of power amplification units to the base station manager. In a base station system having an alarm collecting unit for collecting communication alarms from a plurality of power amplification units connected to one serial port and reporting the collected alarms to a base station management unit, the plurality of power amplifying units can be alarmed during remote downloading. In how to report, A first step of receiving a request message including segmented partial image data of a firmware image for performing remote downloading of the base station manager; A second process of transmitting a response message including processing result information on the request message to the alarm collection unit, and transmitting an alarm response message including its own alarm information to the alarm collection unit according to an alarm request of the alarm collection unit; , And repeating the first to second processes to complete reception of all partial image data, and reporting a result of performing remote downloading of the firmware image to the base station manager through the alarm collector. How to collect alarms. The method of claim 5, If a request message including a command for initiating the remote downloading is received before receiving a request message including the partial image, a response message to the start command is transmitted to the alarm collection unit, and the alarm collection unit The alarm collection method further comprises the step of transmitting an alarm response message including its alarm information to the alarm collection unit according to an alarm request. The method of claim 5, When the reception of all the divided partial images is received, a request message including a command for terminating the remote downloading is received, and a response message to the termination command is transmitted to the alarm collection unit, and the alarm collection unit alarm The alarm collection method, characterized in that further comprising the step of transmitting an alarm response message including its own alarm information to the alarm collection unit.