KR100256966B1 - Base staion wireless environment diagnostic method using access channel of personal portable communication system - Google Patents

Abstract

PURPOSE: A base station wireless environment diagnosing method using an access channel of a personal portable communication system is provided to obtain an effect that whether a remote base station sets ore leases a call normally can be observed from a remote place without directly going to the pertinent base station, and diagnose a wireless environment of the base station by analyzing backward channel information transmitted from a terminal to the base station. CONSTITUTION: A base station control(BSC) diagnosis block of a BSC receives an access channel state check command from an upper part and transmits it to a base station transceiver sub-system(BTS) diagnosis block of a pertinent BTS. Upon receipt of the command, the BTS diagnosis block transmits a command that an arbitrary identification No. suitable to a corresponding sector and a channel is to be transmitted to the BTS call processing block if the sector and the channel corresponding to the access channel state check command are in a normal state, while, if the corresponding sector and the channel are not in a normal state, the BTS diagnosis block informs the upper part of the abnormal state. When the BTS call processing block normally transmits the terminal identification No. to the BTS diagnosis block, the BTS diagnosis block sends a command that the terminal identification No. of the terminal is to be changed, to a BTS testing equipment. When the terminal identification No. is normally changed and the system is normally operated, the sector and the channel assigned by the BTS testing equipment are selected, and then, a call is instructed to be set up by using the corresponding destination number. If there is a fault in the system, an error message at the defective part is informed an operator. When a call is normally set up, a response to the call origination is transmitted through an access channel of a backward channel up to a channel interface processor(CIP), the data is sent to the BTS call processing block. Then, the BTS call processing block analyzes the data and reports a data analysis result such as the access channel number where the call has been set up, the sector or a frequency assignment to the BTS diagnosis block. In order to stop the call, the BTS diagnosis block transmits a call stop message to the BTS testing equipment. Then, the BTS testing equipment transmits it to the terminal to stop the call. After the call is stopped, the BTS diagnosis block changes it to the original terminal identification No.

Description

A method for diagnosing base station radio environment by access channel of personal mobile communication system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for diagnosing a base station radio environment by an access channel of a personal mobile communication system. In particular, the present disclosure relates to a code division multiple access (CDMA) personal communication system (PCS) base station. It is necessary to diagnose the call service state of the base station from the information of the reverse channel sent from the terminal to the base station so that the terminal is in a call state by using the terminal mounted on the base station test equipment by using the system. Extracting information, the present invention relates to a method for diagnosing a wireless environment of a base station with a minimal load on the operating state of the base station.

In the conventional base station radio environment diagnosis, a specific call is set up, and the radio environment diagnosis is performed by viewing a call setup state. For this purpose, the call was set up and released, and it was inconvenient because it was divided into a call setup function and a call release function. In order to test one function, there was no test item to be automatically released after the test was completed, and it was required to integrate it into one function, and only a call setting was also required. The signal flow for setting and clearing a call according to the prior art is as shown in FIGS. 1 and 2.

A method for testing a radio at a base station of a wireless communication network is disclosed in US Pat. No. 5,570,373. The patented method deals with the steps of detecting wireless communication between a wireless device and a mobile station in progress in a network, and processing operations related to detecting a frame of error in a traffic channel of the wireless device during wireless communication between the wireless device and the mobile station. A frame error rate calculated for the purpose of collecting data associated with the call, calculating a frame error rate value from the collected data value, setting an expected frame error rate value, and determining whether the wireless device is operating correctly. And comparing with the expected frame error rate, and providing an indication that the wireless device is not operating. However, the patent relates to a method for testing a wireless device in a base station, and has a problem in that it may affect a base station in operation because it can be tested only with a complete path.

In general, when a predetermined call is set (call state) and the set call operates normally, the terminal sends information to the base station, and through this, information related to the environment in which the call is set up can be known. Therefore, in order to observe the information and status of the signal from the terminal to the base station, at least one normal call must be set up, and there is an inconvenience that a normal call can be made only when this call is intact in all system states. There is no way to diagnose if there is a defect, so the existing method simply did not exist to grasp the state of the wireless environment.

In detail, the existing method is based on all paths of the two-way path of the terminal (Mobile Station (MS))-Base Station (Base-Station Transceiver Subsystem (BTS))-Control Station (BSC)-Mobile Station Switching Center (MSC). There should be no abnormality and each system should operate normally. If there is an error in one system or subsystem, it has a disadvantage that it cannot be set normally if it is related to the call setting part. Therefore, the minimum call setup is necessary for the information and diagnosis of the wireless environment without passing all the above paths.

In addition, in the conventional method, when the CDMA system is in a call state, information exchanged by the terminals to the base station is exchanged with each other through an access channel, which requires a normal call state.

The present invention has been made to improve the above-mentioned drawbacks of the prior art, and an object thereof is to provide a method for diagnosing a radio environment of a base station by an access channel of a personal portable communication system.

1 is a flowchart of a signal for setting up a conventional call;

2 is a flow diagram of a signal for release of a conventional call;

3 is a flowchart of a method for diagnosing a base station radio environment by an access channel of a personal mobile communication system according to the present invention;

One preferred embodiment of a method for diagnosing a base station wireless environment using an access channel of a personal portable communication system according to the present invention, which is invented to achieve the above object,

Receiving, by a control diagnostic block of a control station, an access channel status confirmation command from a higher level and sending an access channel status confirmation command to a base station diagnostic block of a corresponding base station;

When the diagnostic block of the base station receives the command from the control station diagnostic block, the base station diagnostic block is a base station call processing block suitable for the sector and the channel when the state of the sector and the channel corresponding to the access channel state check command is normal. Selecting an arbitrary terminal identification number to send a call setup command, and notifying the upper part of the abnormal state if it is not normal;

If the terminal identification number is normally sent from the base station call processing block to the base station diagnostic block, sending a command to change the terminal identification number of the terminal to the base station test equipment which is the base station test equipment;

Change the identification number of the terminal normally, if the system operation is normal, select the designated sector and channel in the base station test equipment and send a command to set up the call with the corresponding called number, if there is an error in the system Informing an operator of an error message;

Sending a result of a call setup command back to the base station test equipment;

If the call is normally established, a response to the call initiation is sent from the terminal to the channel interface processor through an access channel of the reverse channel;

Sending the response data to the base station call processing block;

The base station call processing block again analyzing the data and sending data analysis results such as access channel number, sector, frequency allocation, etc., which are information on a reverse channel state in which a call is established, to the base station diagnostic block;

The base station diagnostic block sends a call stop message to the base station test equipment to stop the call;

Sending, by the base station test equipment, to the terminal to interrupt the call;

Changing the base station diagnostic block back to the original terminal identification number after a call is interrupted; And

And reporting, by the base station diagnostic block, information on an access channel number, sector, frequency allocation, etc., which are information on a reverse channel state to which a call is set, and a test result to a higher level through the control station diagnostic block.

In the present invention, by using the serial communication between the base station and the terminal, by using the terminal mounted on the base station test equipment with the MIN, the identification number of the terminal and the service option, and set up any call, It is also desirable to request that the call be released.

It is preferable to set up a call to a terminal in the base station test equipment, analyze the reverse channel signal sent by the terminal to the base station, and send this information to the upper level.

It is preferable to request the terminal identification number to the base station call processing block and change the identification number of the terminal mounted in the base station test equipment with the identification number through communication.

Unlike the related art, in order to know the information of the access channel, the present invention does not need to set up a normal call such as a general call state. The path to the terminal through the control station and the base station of the CDMA system is the same as that of the existing normal call, but the information sent by the terminal synchronized with this information to the base station observes the state of the wireless environment instead of sending all the information to the control station. This is possible by observing the minimum information needed to do so, namely the state of the access channel.

Therefore, if you use this function to know whether the base station system currently operating and setting up and clearing the normal call normally does not set up the normal call, it can only diagnose the wireless environment using the access channel that the terminal sends to the base station. In order to test this, there is no need to directly manpower the base station, it is possible to use a terminal mounted in the base station test unit (BTU) which is the base station test equipment. The terminal mounted on the base station test equipment is connected to the control station-base station-base station test equipment by wired path. When the command to set up a call is made through this path, the terminal exchanges information with the base station through the wireless path. By monitoring the status, the wireless environment of the base station can be diagnosed.

Hereinafter, the configuration and operation principle of the present invention will be described in detail with reference to FIG. 3. The control station diagnostic block of the control station receives the access channel status confirmation command from the upper level and sends the access channel status confirmation command to the base station diagnostic block of the base station. When the base station diagnostic block receives the above command from the control station diagnostic block, the base station diagnostic block is a base station call processing block, if the sector and channel state corresponding to the access channel status check command are normal, any terminal identification number suitable for the sector and channel. Send a command to send a message, and inform the upper part that the state of the sector and the channel is not normal.

When the terminal identification number is normally sent from the base station call processing block to the base station diagnostic block, a command is sent to the base station test equipment, which is the base station test equipment, to change the terminal identification number of the terminal, and if the terminal identification number is changed normally and the system operation is normal, the base station After selecting the designated sector and channel in the test equipment, it is instructed to set up the call with the corresponding called number. If the system has an error, the operator is notified of the error message in the part of the error.

When the call is established normally, the response to the call origination from the terminal is sent to the channel interface processor (CIP) through the access channel of the reverse channel, and the data is sent to the base station call processing block. After analyzing the data, report the result of data analysis such as access channel number, sector, frequency assignment (FA), etc., to which the call is set.

To stop the call, the base station diagnostic block sends a call stop message to the base station test equipment and the base station test equipment sends it to the terminal to abort the call and after the call stops, the base station diagnostic block returns to the original terminal identification number. Make a change. The base station diagnostic block reports the access channel number, sector and frequency allocation information to which the call is set and the result of the test to the control station diagnostic block.

The base station test equipment, which is the base station test equipment, may set an arbitrary call through the terminal mounted in the base station test equipment with the MIN, which is the identification number of the terminal, and a service option. Of course, you can also use this feature to request that the call be released. This is done via serial communication between the base station and the terminal.

Therefore, by using the above function, the same information as the normal call state can be obtained by setting and releasing a call that performs only basic call functions between the base station test equipment and the terminal without setting up a normal call between the general exchange and the terminal. have.

In addition, by using this function, information on a reverse channel that a terminal uploads to a base station can also be obtained through the base station call processing block. Therefore, the base station test block sets up the call using the terminal equipped with the higher order and the information of the set call is reported to the base station on the contrary, thereby diagnosing whether the current base station can normally set up and release the call. can do.

To test the above functions, if any terminal identification number is assigned to the base station diagnostic block in the call processing block of the base station, change the identification number of the terminal mounted in the base station test equipment to the above number, and then change this number and the designated service option. When the call is set up with the terminal, the terminal tunes to the base station to provide the base station with the information of the terminal and the information about the wireless environment in which the call is established through the reverse channel. Knowing the presence of the required reverse channel and call setup status in this information, the base station is given to this base station. Knowing the presence of the required reverse channel and call setup status in this information, it is possible to diagnose whether the radio environment of the base station is normal or not, and therefore, the effect of testing various terminals by multi-frequency can be expected.

According to the present invention operating as described above, it is possible to observe whether the remote base station normally establishes and releases a call without directly going to the base station, and also analyzes the information with the reverse channel sent from the terminal to the base station. The radio environment state of the base station can be diagnosed.

As in the case of the establishment and release of the existing call, the call is established with the minimum path using the terminal mounted on the base station test equipment without using the normal call, so the test can be performed with the least influence on the operating base station.

In addition, in order to find out the status of the service of a frequency different from the frequency held by the terminal, the terminal must be tested by changing the terminal's telephone number to tune to the frequency to be tested. When sent, this identification number is tested by changing the identification number of the terminal mounted in the base station test equipment, thus obtaining the same effect of testing various terminals.

Claims (4)

Receiving, by a control diagnostic block of a control station, an access channel status confirmation command from a higher level and sending an access channel status confirmation command to a base station diagnostic block of a corresponding base station; When the diagnostic block of the base station receives the command from the control station diagnostic block, the base station diagnostic block is a base station call processing block suitable for the sector and the channel when the state of the sector and the channel corresponding to the access channel state check command is normal. Selecting an arbitrary terminal identification number to send a call setup command, and notifying the upper part of the abnormal state if it is not normal; If the terminal identification number is normally sent from the base station call processing block to the base station diagnostic block, sending a command to change the terminal identification number of the terminal to the base station test equipment which is the base station test equipment; Change the identification number of the terminal normally, if the system operation is normal, select the designated sector and channel in the base station test equipment and send a command to set up the call with the corresponding called number, if there is an error in the system Informing an operator of an error message; Sending a result of a call setup command back to the base station test equipment; If the call is normally established, a response to the call initiation is sent from the terminal to the channel interface processor through an access channel of the reverse channel; Sending the response data to the base station call processing block; The base station call processing block again analyzing the data and sending data analysis results such as access channel number, sector, frequency allocation, etc., which are information on a reverse channel state in which a call is established, to the base station diagnostic block; The base station diagnostic block sends a call stop message to the base station test equipment to stop the call; Sending, by the base station test equipment, to the terminal to interrupt the call; Changing the base station diagnostic block back to the original terminal identification number after a call is interrupted; And And reporting, by the base station diagnostic block, information on an access channel number, sector, frequency allocation, etc., which are information on a reverse channel state to which a call is set, and a test result to a higher level through the control station diagnostic block. Diagnosis method of base station radio environment by access channel of communication system. The method of claim 1, wherein, by using serial communication between the base station and the terminal, an arbitrary call is established through the terminal mounted on the base station test equipment with the MIN and the service option, the identification number of the terminal, A method of diagnosing a base station radio environment by an access channel of a personal mobile communication system, which also requires the release of a call using this. 2. The base station wireless environment of claim 1, wherein a call is set to a terminal in the base station test equipment, and the reverse channel signal sent from the terminal to the base station is analyzed and the information is sent upward. Diagnostic method. 2. The access channel of claim 1, wherein the terminal identification number is requested by the base station call processing block, and the identification number of the terminal mounted in the base station test equipment with the identification number is changed through communication. How to diagnose base station wireless environment.

Images