JP2793438B2 - Wireless base station test method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio base station test system for a mobile communication system.

[0002]

2. Description of the Related Art Conventionally, a mobile station, a radio base station for transmitting and receiving radio waves to and from the mobile station on a radio control channel and a radio communication channel, a radio channel test apparatus for testing a radio channel, a mobile station and a radio channel In a mobile base station test method in a mobile communication system including an exchange that controls incoming and outgoing calls to a test device, a wireless base station that is added during a time period when traffic of an operating mobile communication system is the least occurs. Is connected to the exchange, the station data of the added resource is added to the exchange, the blockage of the added radio base station is released, the radio base station is temporarily put into the operating state, and radio control is performed by the radio base station. It has been confirmed that a radio wave of a channel is broadcast and a call connection can be normally performed using a radio channel test apparatus in a mobile station or a radio base station.

[0003]

In the conventional radio base station test system described above, when testing the function of an added radio base station, a radio base station that is temporary but has not yet been guaranteed to operate normally is Since the radio base station incorporated in the system transmits radio control channel radio waves from the moment it is incorporated into the operating system, a system access from a mobile station near the added radio base station to this radio base station can be performed. To start. Therefore, in order to execute the test while minimizing the influence on the system, there is a restriction that the test must be executed during a time zone in which the traffic is minimized. Further, when the added radio base station does not operate normally, there is a problem that system access from the mobile station causes a call loss. Furthermore, when a system maintainer performs a test on an additional wireless base station, if there is a system access from a mobile station other than the test intended by the maintainer, if there is a problem with the function of the wireless base station, the problem is isolated. There is a problem that it becomes difficult.

[0004]

The radio base station test system of the present invention comprises a mobile station, a radio base station for transmitting and receiving radio waves to and from the mobile station, a radio control channel and a radio communication channel, and a radio channel test. In a mobile communication system composed of a radio channel test apparatus for performing the control and an exchange for controlling calls to and from the mobile station and the radio channel test apparatus, the radio base station broadcasts from the radio base station. Means for adding a test broadcast code indicating test broadcast to the system information of the radio control channel, wherein the mobile station, when detecting the test broadcast code in the received system information, Means for ignoring system information and re-scanning a radio control channel broadcast from another radio base station, wherein the radio channel test apparatus When detecting the test broadcast code in the beam information, which is configured to have a means of access to the radio base station which sends the test broadcasting code.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1A is a system configuration diagram showing an embodiment of the present invention. The radio base station 1 is an operating radio base station and is coupled to the exchange 5 and broadcasts online system information on a radio control channel. The radio base station 2
A radio base station added to the system and having a radio channel test device 4, coupled to the exchange 5, and not yet operated. The radio base station 2 adds a test broadcast code indicating a test broadcast to the system information of the radio control channel to be broadcasted (not shown).
It has. The mobile station 3 is coupled to the radio base station 1 or 2 via a radio control channel and a radio communication channel.
The mobile station 3 scans all the radio control channels stored inside the mobile station 3 at the time of power-on, at the end of a call, or when the system instructs the control channel to rescan. It analyzes the system information received on the selected radio control channel, selects a radio control channel accessible to the system, and tunes to the radio control channel having the highest received electric field strength among the selected radio control channels. This mobile station 3
Has means (not shown) for re-scanning a radio control channel broadcast from another radio base station, ignoring the received system information even if a test broadcast code is detected in the received system information. ing. The wireless channel test apparatus 4 has a function equivalent to that of the mobile station 3 and a function of testing a wireless channel. The wireless channel test apparatus 4 includes a unit (not shown) capable of accessing a wireless base station that transmits the test code when a test broadcast code in the received system information is detected.

FIG. 1B is a diagram showing the structure of a test broadcast code in system information according to one embodiment of the present invention.

FIGS. 2 and 3 are flow charts of a test procedure for performing a function test of the radio base station 2 of FIG. less than,
The operation function of the present invention will be described. When the wireless base station 2 is added to the system, the resource station data of the wireless base station 2 is added to the exchange 5 (step 100). Next, the exchange 5 downloads the system data including the test broadcast code and the added station data shown in FIG. The radio base station 2 having downloaded the system data and the station data from the exchange 5 initializes the radio base station 2 (step 20).
0). Next, when the exchange 5 starts the function test of the radio base station 2 (step 102), the exchange 501 instructs the radio base station 2 to start the test by an instruction 501.

The radio base station 2 that has started the test operation (step 201) transmits system information 502 to which a test broadcast code has been added via a radio control channel. At this time, whether the mobile station 3 has been powered on, has ended the call, or has been instructed by the system to rescan the radio control channel through the radio base station 1, performs scanning of the radio control channel, and performs scanning from the radio base station 2. When the test system information 502 is received, if the test broadcast code in the received system information is discriminated to be a test broadcast, the received electric field strength of the received radio control channel of the radio base station 2 is selected. Even if it is sufficient as the control channel, the received system information 502 is ignored, and the re-scanning of the radio control channel is started without selecting the radio control channel of the radio base station 2 (step 400).

[0010] The mobile station 3 that has started rescanning the radio control channel scans the radio control channel of a nearby radio base station and broadcasts on-line system information on the radio control channel having the strongest received electric field strength. The mobile station tunes to the wireless control channel of the wireless base station 1 (step 401) and enters a standby state (step 402).

Similarly, the radio channel test apparatus 4 starts scanning the radio channel. However, unlike the mobile station 3, even if the system information 502 broadcast from the radio base station 2 is a test broadcast, the received system The radio control channel of the radio base station 2 is selected without ignoring the information 502, and tuned to the radio control channel to enter a standby state (step 300).

Next, the switching center 5 sets the radio channel tester 4
When the mobile station termination test is started using (step 10)
3) The call information 503 of the wireless channel test apparatus 4 is transmitted to the wireless base station 2. Upon receiving the call information 503, the wireless base station 2 starts an incoming call test (step 202), and sends a call signal 504 to the wireless channel test apparatus 4 through a wireless control channel.

The call signal 504 is received (step 30).
1) The radio channel test apparatus 4 returns a paging response signal 505 to the radio base station 2 as a paging response (step 30).
2). The call response signal 505 is received (step 20).
3) The wireless base station 2 sends the call response information 506 to the exchange 5. Upon receiving the call response information 506 and confirming the call response (step 104), the exchange 5 assigns a communication channel to the radio channel test apparatus 4 (step 10).
5) Therefore, the communication channel allocation information 507 is transmitted to the radio base station 2.
Is sent.

The radio base station 2 that has received the traffic channel assignment information 507 sends a traffic channel assignment signal 508 to the radio channel test apparatus 4 through a radio control channel (step 204). Upon receiving the traffic channel assignment signal 508 (step 303), the radio channel test apparatus 4
Transition to the assigned speech channel (step 30)
4) Return a communication channel confirmation signal 509 to the wireless base station 2.

The radio base station 2 having received the communication channel confirmation signal 509 sets a communication path of the communication channel (step 205), and sends a signal 5 to the exchange 5 to complete the communication channel assignment.
Send 10 out. The communication channel assignment completion signal 510 is received, and the completion of the communication channel assignment is confirmed (step 10).
6) The exchange 5 executes a channel loop test (step 107), and sends a channel confirmation signal 5 to the radio channel test apparatus 4.
11 is transmitted.

A shift to the communication channel has been made (step 30).
4) The wireless channel test apparatus 4 sets the communication path in a loop state (step 305), and returns the communication path confirmation signal 511 sent from the exchange 5 as a signal 512. After finishing the channel loop test (step 107), the exchange 5
The communication channel release information 513 is sent to the wireless base station 2 to end the incoming call test (Step 108).

The wireless base station 2 having received the communication channel release information 513 sends a communication channel release signal 514 to the wireless channel test apparatus 4 (step 206). Upon receiving the call channel release signal 514 (step 306), the radio channel test apparatus 4 releases the tuned call channel, sends a call end signal 515 to the radio base station 2, returns to the radio control channel, and stands by. The state is reached (step 307).

Radio base station 2 that has received call termination signal 515
Releases the resources of the released speech channel (step 207), and reports a test completion 516 to the exchange 5. The exchange 5 receiving the test completion 516 releases the resources in the exchange 5 and terminates the incoming call test (step 109).

Next, when confirming the normal operation of the radio base station 2, the exchange 5 instructs the radio base station blocking 517 to put the radio base station 2 into the closed state from the test operation state (step 110). I do. The radio base station 2 instructed to block the radio base station 517 stops all transmissions on the radio and enters the radio base station blocked state (step 208).

The switching center 5 that has closed the wireless base station 2 sends online system data 518 to perform online initialization of the wireless base station 2 to operate the wireless base station 2 online (step 111). Upon receiving the online system data 518, the wireless base station 2 initializes the wireless base station 2 online (step 209). Next, the exchange 5 releases the blockage of the wireless base station 2 (step 1).
12) Instruct the wireless base station 2 to release the blockage 519.

The radio base station 2 that has received the block release instruction 519 starts online operation (step 210), and sends out the online system information 520 to the radio control channel. At this time, the mobile station 3 and the radio channel test apparatus 4 which have received the online system information 520 enter a standby state, respectively (steps 403 and 308).

[0022]

As described above, according to the present invention, when an operation test of an additional radio base station is performed, a test broadcast code is added to system information of a radio control channel broadcasted from the additional radio base station and broadcast. However, the mobile station cannot access the radio base station broadcasting the test broadcast code, and only the radio channel test apparatus can access the radio base station broadcasting the test broadcast code. Since the function test can be performed without affecting the system in operation, there is an effect that there is no restriction on the time zone in which the test is executed and there is no effect on the mobile station. Further, for the maintenance person who performs the test, there is an effect that the problem can be easily identified because only the test call can access the radio base station under test.

[Brief description of the drawings]

FIG. 1A is a system configuration diagram showing an embodiment of the present invention. (B) is a diagram showing a configuration of a test broadcast code in system information of one embodiment of the present invention.

FIG. 2 is a flowchart illustrating an example of a test procedure of a wireless base station test method according to the present invention.

FIG. 3 is a flowchart showing an example of a test procedure of the radio base station test method according to the present invention.

[Explanation of symbols]

 1, 2 wireless base station 3 mobile station 4 wireless channel test apparatus 5 switching station

Claims (1)

(57) [Claims] 1. A mobile station, a radio base station for transmitting and receiving radio waves to and from a radio control channel and a radio communication channel with the mobile station, a radio channel test apparatus for testing a radio channel, the mobile station and the radio channel In a mobile communication system configured with a switching center that controls incoming and outgoing calls to and from a test apparatus, the radio base station includes a test broadcast in system information of a radio control channel broadcast from the radio base station. Has a means for adding a test broadcast code representing, when the mobile station detects the test broadcast code in the received system information, ignores the received system information and is broadcast from another radio base station Means for rescanning the radio control channel that is present, wherein the radio channel test apparatus detects the test broadcast code in the received system information. And a means for accessing a wireless base station that transmits the test broadcast code.