JPH10242899A - Radio communication system and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need to carry mobile equipment into an area that a base station covers and to test the operation as to both a wired and a wireless system together by connecting one radio base station accommodated by a switch device and another radio base station by using a wireless channel, and testing the operation of the ratio communication system by using the wireless channel. SOLUTION: When a maintenance terminal 4 starts a loop-back operation test, the switch device 1 sends a command for placing a base station 2 in a base station mode and a base station 5 in mobile equipment mode. The base station 2 sends a timing clock to the base station 5 through a wireless line R. The base station 5 sets the wireless line R to the base station 2 by following, for example, the procedure of RCR-STD28. The switching device 1 controls a channel to set a path L of the maintenance terminal 4, the base station 2, the wireless channel R, the base station 5, and the maintenance terminal 4 in order. The maintenance terminal 4 sends a test signal such as white noise out to the path L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to wireless communication systems, and more particularly, to testing the operation of wireless communication systems.

[0002]

2. Description of the Related Art Conventionally, when an operation of a radio communication system such as a mobile station or a base station of a radio communication system accommodating the mobile station is tested, the mobile station is brought into an area covered by a base station to be tested. The operation test was performed by operating the mobile device in that area.

The operation test of a conventional mobile station or base station will be described below with reference to FIG.

In FIG. 3, 1 is a base station (CS) 2
An exchange device accommodating 1, 22 is a base station, 2 is a mobile station, 4 is a maintenance terminal for performing maintenance of a wireless communication system.

First, when testing the operation of the base station 21,
The mobile station 3 is brought into an area covered by the base station 21 to perform communication via the network.

As a result, if the mobile station 3 can communicate normally, the base station 21 is normal. If the mobile station 3 cannot communicate normally, either the mobile station 3 or the base station 21 does not operate normally for some reason. Is determined.

As another operation test method, a loop-back means is provided in the base station 21 and a return communication is performed from the mobile station 3 to the base station 21 along the path A in FIG. A second method for performing a wireless system test with the mobile device 3 and a return communication between the maintenance terminal 4 and the base station 21 by performing return communication within the base station 21 from the maintenance terminal along the path B in FIG. There is a third way to do the test.

[0008]

SUMMARY OF THE INVENTION
The first method has a problem that the mobile device has to be actually brought into the area where the base station to be tested for operation is installed.

Further, in the second method, it is necessary to bring the mobile station into the area of the base station as in the first method, and furthermore, the operation test of the wired system between the switching device and the base station cannot be performed. There is.

In the third method, a wired system operation test between the switching device and the base station can be performed, but a wireless system operation test between the base station and the mobile station cannot be performed.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. In order to achieve the above-mentioned objects, the present invention can be connected to a wireless communication device using a wireless line and accommodated in a switching device. Connecting means for connecting a first wireless base station and a second wireless base station using a wireless line, and the wireless communication using a wireless line provided by the connecting means. A wireless communication system having test means for testing the operation of a system is provided.

The present invention also relates to a wireless communication system having a plurality of wireless base stations which can be connected to a wireless communication device using a wireless line and is accommodated in a switching device. A wireless communication base station comprising: connection means for connecting to the wireless communication system using a wireless circuit; and test means for testing the operation of the wireless communication system using the wireless circuit provided by the connection means.

According to the present invention, there is provided a method for controlling a wireless communication system which is connectable to a wireless communication device using a wireless line and has a plurality of wireless base stations accommodated in a switching device. A wireless communication system comprising: a connection step of connecting a second wireless base station using a wireless line; and a test step of testing an operation of the wireless communication system using the wireless line in the connection step. A control method is provided.

The present invention also relates to a method for controlling a wireless base station in a wireless communication system which is connectable to a wireless communication apparatus using a wireless line and has a plurality of wireless base stations accommodated in a switching apparatus. A control method for a wireless communication base station, comprising: a connection step of connecting to a wireless base station using a wireless line; and a test step of testing operation of the wireless communication system using the wireless line in the connection step. I will provide a.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) The following first embodiment will be described in detail.

As an embodiment of the present invention, if the radio system is PH
A digital cordless telephone system of the S (personal handy phone system) system will be described as an example.

FIG. 1 is a block diagram of a digital cordless telephone system according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes an exchange device for accommodating an outside line or an extension terminal and performing exchange control, and includes a control unit 101 and a failure detection unit 102.

The control unit 101 performs various controls of the switching device 1, and the failure detection unit 102 detects a failure when performing an operation test of the wireless base station.

2 and 5 are radio base stations, 3 is a PHS telephone, 4 is a maintenance terminal, 6 and 7 are communication lines connecting the switching device 1 and the radio base stations 2 and 5, and 8 is the switching line. The outside line accommodated in the device 1 and 9 are nets.

FIG. 2 is a detailed block diagram of the base station 2, which comprises a control unit 201, a wired transmission unit 202, a channel CODEC unit 203, a modem unit 204, and an RF unit 205.

The channel CODEC 203 is a TDMA (Time Diviso) for disassembling / assembling a frame.
n Multiple Access) processing, error correction processing, scramble processing, and confidential processing of audio data.

The modulation / demodulation section 204 modulates transmission data and demodulates reception data, and outputs the modulated data to the RF section 2.
05, and the demodulated data is output to the channel CODE.
Output to C section 203.

RF (Radio Frequency)
The unit 205 receives a radio wave from the other party with the antenna 207 and transmits a radio wave including transmission data from the antenna 207 to the other party.

The control unit 201 has a communication control processing unit 201a.
And an operation mode setting processing unit 201b and a synchronization control processing unit 201c. The communication control processing means 201a performs the communication protocol processing of the PHS from layer 1 to layer 3 according to the procedure defined in RCR STD-28. The operation mode setting processing means 201b switches the operation mode of the base station 2 between a base station (CS) mode operating as a base station and a mobile station (PS) mode operating as a mobile station. Specifically, the position of the time slot to be used is changed, and the synchronization detection word (unique word, preamble) is changed. The synchronization control processing means 201c is operated by the RF unit 205 in the CS / PS mode.
And the wired transmission unit 2
02 is matched with the clock.

The wired transmission unit 202 communicates with the switching device 1
Transmission and reception of the time-division multiplexed speech signal and control signal are performed.

The base station 5 has the same configuration as the base station 2, and in the following description, the block diagram of the base station 5 will be replaced with 5xx in FIG.

Next, the operation of this embodiment will be described with reference to FIG. FIG. 4 is a flowchart for explaining the operation of this embodiment.

When the maintenance terminal 4 activates the loopback operation test (ST1), the control unit 101 in the switching device 1 analyzes the command, sets the base station 2 to the CS mode, and sets the base station 5
Is transmitted to each of the base stations 2 and 5 in order to set to the PS mode (ST2).

In the base station 2, a setting command for setting the CS mode is received by the wired transmission unit 202 from the communication line 6 (S
T3). Thereafter, the received command is transferred to the control unit 201, and the control unit 201
b, the base station 2 is set to the CS mode (ST4).
At the same time, the synchronization control processing means 201c uses the timing clock of the RF unit 205 as a self-generated clock and transmits the self-generated clock to the base station 5 via the radio line R. The phase of the clock is synchronized with the system clock of the switching device 1 extracted from the wired transmission unit 202 (ST5).

In the base station 5, a setting command to the PS mode is received by the wired transmission unit 502 from the communication line 7 (S
T6). Thereafter, the received command is transferred to the control unit 501, and the control unit 501 operates the operation mode setting processing unit 501.
b, the base station 5 is set to the PS mode (ST7).
At the same time, the base station 2 extracts the timing clock of the RF unit 505 from the radio line R by the synchronization control processing means 501c.
Clock, and the clock
(ST8).

Then, the radio channel R is set between the base station 2 and the base station 5 according to a predetermined procedure specified by the RCR-STD 28 (ST9). Further, the control unit 101 of the switching device 1 controls the communication path and sets the route L between the maintenance terminal 4 to the base station 2 to the wireless line R to the base station 5 to the maintenance terminal 4 (ST10). Thereafter, the maintenance terminal 4 performs a loopback operation test by transmitting a test signal such as white noise to the path L, and confirms the operation of the base station (S
T11).

As described above, by setting the base station 5 to the PS mode, the radio circuit R is set between the base station 5 and the base station 2 in the CS mode, and the loopback operation test using the path L is realized.

(Second Embodiment) A second embodiment will be described below.

The description of the present embodiment is also made by taking a digital cordless telephone system in which the wireless system is the PHS system as an example.

In this embodiment, a loop-back operation test is performed at regular intervals.

FIG. 5 is a block diagram of a digital cordless telephone system according to the present embodiment.

In FIG. 5, reference numeral 51 denotes a timer for counting a predetermined time.

The other configuration is the same as that of FIG. 1, and the description is omitted.

FIG. 6 shows an operation flowchart of this embodiment.

First, the timer 51 counts a certain time, and when the certain time elapses (ST60), the maintenance terminal 4
Starts a loopback operation test (ST61). Then, a loopback operation test is performed between the base station 2 and the base station 5 as in the first embodiment (ST62 to ST61).
1). When the loopback operation test is completed, the process returns to ST60, and after a predetermined time, the loopback operation test is performed again.

According to the present embodiment, since the loopback operation test is performed at regular intervals, the operation test of the base station can be performed periodically.

(Third Embodiment) A third embodiment will be described below.

In the description of this embodiment, a digital cordless telephone system in which the wireless system is the PHS system will be described as an example.

The system configuration diagram of the present embodiment is the same as that of the first embodiment, and the description is omitted.

In this embodiment, when the failure detecting unit 102 detects a failure while the PHS telephone is talking, a loopback operation test is performed.

FIG. 7 shows an operation flowchart of this embodiment.

In this embodiment, the PHS telephone 3 is connected to the base station 2
Is used to make a call via the network 9.

In FIG. 7, when the PHS telephone 3 starts talking (ST70), the failure detecting unit 102 starts detecting a communication failure (ST71).

When the failure detection unit 102 detects a communication failure (ST72), the failure detection unit 102 notifies the control unit 101 that a communication failure has been detected.

When receiving this notification, the control unit 101 notifies the base station 2 to end the call of the PHS telephone 3,
The control unit 201 of the base station 2 ends the call of the PHS telephone 3 (ST73).

The control unit 101 of the switching device 1
When the communication end is notified, the maintenance terminal 4 is notified that a communication failure has been detected (ST74). The maintenance terminal 4
Upon receiving the notification of the failure detection, a loopback operation test similar to that of the first embodiment is started (ST75 to ST715).

According to this embodiment, the PHS telephone detects a communication failure during a call, and when the communication failure is detected, terminates the call and performs a loopback operation test of the base station. The operation test of the base station can be performed promptly without burdening the operator of the PHS telephone with useless call charges, for example, when the PHS telephone does not operate normally and the noise is severe.

In this embodiment, the operation test of the base station is performed after the call of the PHS telephone is terminated.
In a digital cordless telephone system of the system or the like, a plurality of communication channels can be used at the same time, so that a loopback operation test can be performed using a communication channel different from the communication channel in which the communication is performed.

(Fourth Embodiment) Hereinafter, a fourth embodiment will be described.

In the description of this embodiment, a digital cordless telephone system in which the wireless system is the PHS system will be described as an example.

The system configuration diagram of this embodiment is the same as that of the first embodiment, and the description is omitted.

In the first to third embodiments, the description has been made on the assumption that the base station 2 and the base station 5 can be connected by a wireless channel. In the output, it is not always possible for the base stations to be connected to each other by a wireless line. Therefore, in this embodiment, the output of the radio wave is increased when the base station performs an operation test.

In the following description, the output of radio waves transmitted by the base stations 2 and 5 when the PHS telephone 3 makes a call using the base station 2 or the base station 5 will be described as P1.

FIG. 8 shows an operation flowchart of this embodiment.

When the maintenance terminal 4 activates the loopback operation test (ST81), the control device 101 in the switching device 1 analyzes the command and sets the base station 2 to the CS mode and the base station 5 to the PS mode. A command is transmitted to each of the base station 2 and the base station 5 to perform the operation (ST82).

In the base station 2, a setting command for setting the CS mode is received from the communication line 6 by the wired transmission unit 202 (S
T83). Then, the received command is transferred to the control unit 201, and the control unit 201 sets the base station 2 to the CS mode by the operation mode setting processing unit 201b (ST84). At the same time, the synchronization control processing means 201c uses the timing clock of the RF unit 205 as a self-generated clock and transmits the self-generated clock to the base station 5 via the radio line R.

The phase of the clock is synchronized with the system clock of the switching device 1 extracted from the wire transmission unit 202 (ST85).

In the base station 5, a setting command to the PS mode is received by the wired transmission unit 502 from the communication line 7 (ST8).
6). Thereafter, the received command is transferred to the control unit 501, and the control unit 501 sets the base station 5 to the PS mode by the operation mode setting processing unit 501b (ST87). At the same time, the synchronization control processing unit 501c sets the timing clock of the RF unit 505 as the clock of the base station 2 extracted from the radio channel R, and synchronizes the clock with the system clock of the switching device 1 extracted from the wired transmission unit 502. (ST
88).

At this time, the communication control processing units 201a and 501a
The output of radio waves transmitted from the RF units 205 and 505 is set to an output P2 (P1 <
P2) is set (ST89), and the radio link R is set between the base station 2 and the base station 5 with the output of P2 (ST810).

Further, the control unit 101 of the exchange 1 controls the communication path so that the maintenance terminal 4 to the base station 2 to the radio line R to the base station 5
-Set the route L of the maintenance terminal 4 (ST811).

Thereafter, the maintenance terminal 4 performs a loopback test by transmitting a test signal such as white noise to the path L, and confirms the operation of the base stations 2 and 5 (ST8).
12).

As described above, when an operation test of a base station is performed, a loopback test between base stations can be reliably performed by increasing the output of radio waves transmitted by the base station.

(Fifth Embodiment) A fifth embodiment will be described below.

In the above-described fourth embodiment, when the base station performs the operation test, the output of the radio wave is always increased. However, in the present embodiment, the output of the radio wave is increased as necessary. I do.

In the description of the present embodiment, the wireless system is PHS.
A digital cordless telephone system which is a system will be described as an example.

The system configuration diagram of this embodiment is the same as that of the first embodiment, and the description is omitted.

In the following description, the output of radio waves transmitted by the base stations 2 and 5 when the PHS telephone 3 makes a call using the base station 2 or the base station 5 will be described as P1.

FIG. 9 shows an operation flowchart of this embodiment.

Steps ST91 to ST98 in FIG. 9 are the same as ST81 to ST88 in FIG. 8 of the fourth embodiment, and a description thereof will be omitted.

In FIG. 9, when the base station 2 is set to the CS mode and the base station 5 is set to the PS mode in ST91 to ST98, the communication control processing means 201a of the base station 2 and the communication control processing of the base station 5 are set. The means 501a provides a radio link R between the base station 2 and the base station 5 with the output P1 of radio waves used for normal communication.
Is set (ST99).

In ST99, base station 2 and base station 5 are output P1.
If the radio channel R can be set during the period, the radio channel is set with the output of P1 (ST911). If the output of the radio wave is weak at the output P1 and the radio channel R cannot be set between the base station 2 and the base station 5, The communication control processing units 201a and 501a are
Is set to an output P2 (P1 <P2) that is larger than the radio wave output P1 used in normal communication (ST910), and the radio link R between the base station 2 and the base station 5 is output by the output of P2. Is set (ST911).

When the setting of the radio line R is completed, the control unit 101 of the exchange 1 controls the communication path, and
Base station 2 to radio line R to base station 5 to maintenance terminal 4 path L
Is set (ST912).

Thereafter, the maintenance terminal 4 performs a loopback test by transmitting a test signal such as white noise to the path L, and confirms the operation of the base stations 2 and 5 (ST9).
13).

As described above, according to the present embodiment, the output of radio waves is increased as necessary, so that power consumption during the operation test of the base station is minimized and the base stations are reliably connected to each other. Loopback test can be performed.

Note that the loopback route in the above-described first to fifth embodiments is based on the assumption that the base station in the CS mode → the radio link R → P
Although the direction is from the S mode base station to the base station, the direction may be from the PS mode base station to the radio link R to the CS mode base station.

In the first to fifth embodiments, P
Although the digital cordless telephone system of the HS system has been described, the present invention can be similarly implemented in other wireless medium systems, such as a cellular system (car phone, mobile phone) and an MCA (multi-channel access) system. I can do it.

[0083]

As described above, according to the present invention, it is not necessary to bring the mobile station into the area covered by the base station when performing the operation test of the base station. A path operation test can be performed at a time.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a first embodiment and a third embodiment of the present invention.

FIG. 2 is a configuration diagram of a base station according to a first embodiment, a second embodiment, and a third embodiment of the present invention.

FIG. 3 is a configuration diagram of a conventional system.

FIG. 4 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 5 is a system configuration diagram according to a second embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the third embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the fourth embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of the fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switching device 2 Base station 3 PHS telephone 4 Maintenance terminal 5 Base station 6 Communication line connecting switching device 1 and base station 2 7 Communication line connecting switching device 1 and base station 5 8 External line accommodated in switching device 1 9 net

Claims (36)

[Claims] 1. A wireless communication system connectable to a wireless communication device using a wireless line and having a plurality of wireless base stations accommodated in a switching device, comprising: a first wireless base station and a second wireless base station; A wireless communication system comprising: connecting means for connecting using a wireless line; and test means for testing an operation of the wireless communication system using a wireless line provided by the connecting means. 2. The radio communication system according to claim 1, wherein the test unit tests an operation of the radio base station. 3. The wireless communication system according to claim 1, wherein the test means forms a loop of a communication path between the first wireless base station and the connecting means, and a wireless communication path formed by the second wireless base station. A wireless communication system for testing the operation of a system. 4. The wireless communication system according to claim 1, wherein the wireless base station is switchable between a first mode operating as a wireless base station and a second mode operating as a wireless communication device. A wireless communication system for connecting between a wireless base station in a first mode and a wireless base station in the second mode. 5. The wireless communication system according to claim 1, wherein the test unit tests the operation of the wireless communication system at regular time intervals. 6. The wireless communication system according to claim 1, wherein the wireless communication system includes a detection unit that detects a communication failure of communication by the wireless communication device, and the test unit detects when the detection unit detects a communication failure. And testing the operation of the wireless communication system. 7. The wireless communication device according to claim 1, wherein the connection unit connects the first wireless base station and the second wireless base station with a radio wave output larger than a radio wave output used for communication by the wireless communication device. A wireless communication system, comprising: 8. The connection unit according to claim 1, wherein the connection unit includes a determination unit configured to determine whether the first wireless base station and the second wireless base station can be connected. A wireless communication system, wherein connection between the first wireless base station and the second wireless base station is performed with a radio wave output based on the determination of the determining means. 9. The wireless communication system according to claim 1, wherein the wireless communication system is a digital wireless telephone system. 10. The wireless communication system according to claim 9, wherein the wireless communication system is a personal handyphone.
A wireless communication system, which is a system. 11. The wireless base station of a wireless communication system that is connectable to a wireless communication device using a wireless line and has a plurality of wireless base stations accommodated in a switching device, wherein a wireless line is connected to another wireless base station. A wireless communication base station comprising: connecting means for connecting by using the wireless communication system; and testing means for testing an operation of the wireless communication system using a wireless line provided by the connecting means. 12. The radio base station according to claim 11, wherein the test unit tests an operation of the radio base station. 13. The wireless communication system according to claim 11, wherein the test unit tests an operation of the wireless communication system by forming a loop of a communication path with the another wireless base station and a wireless line provided by the connection unit. Wireless base station. 14. The wireless communication system according to claim 11, wherein the wireless base station is switchable between a first mode operating as a wireless base station and a second mode operating as a wireless communication device. A wireless communication base station connected between a wireless base station in a first mode and a wireless base station in the second mode. 15. The radio communication base station according to claim 9, wherein said test means tests the operation of said radio communication system at regular intervals. 16. The wireless communication base station according to claim 11, wherein said testing means tests the operation of said wireless communication system when a communication failure in communication by said wireless communication device is detected. 17. The radio base station according to claim 11, wherein the connection unit connects to the another radio base station with a radio wave output larger than a radio wave output used for communication by the wireless communication device. 18. The wireless communication system according to claim 11, wherein said connection means has a judgment means for judging whether or not connection with said another radio base station is possible, and said connection means has a radio wave based on the judgment of said judgment means. A wireless base station for connecting to the another wireless base station at an output. 19. The radio communication base station according to claim 11, wherein the radio base station is a radio base station of a digital radio telephone system. 20. The radio communication base station according to claim 19, wherein the radio base station is a radio base station of a personal handyphone system. 21. A control method for a wireless communication system which is connectable to a wireless communication device using a wireless line and has a plurality of wireless base stations accommodated in a switching device. A control method for a wireless communication system, comprising: a connection step of connecting a base station using a wireless line; and a test step of testing an operation of the wireless communication system using the wireless line in the connection step. 22. The control method for a wireless communication system according to claim 21, wherein the test step tests an operation of the wireless base station. 23. The wireless communication method according to claim 21, wherein the test step includes forming a loop of a communication path between the first wireless base station and the connection unit and a wireless communication path between the second wireless base station. A method for controlling a wireless communication system, comprising testing an operation of a system. 24. The wireless communication system according to claim 21, wherein the wireless base station is switchable between a first mode operating as a wireless base station and a second mode operating as a wireless communication device. A method for controlling a wireless communication system, comprising connecting between a wireless base station in a first mode and a wireless base station in the second mode. 25. The control method for a wireless communication system according to claim 21, wherein the test step tests an operation of the wireless communication system at regular time intervals. 26. The wireless communication system according to claim 21, wherein the wireless communication system has a detecting step of detecting a communication failure of communication by the wireless communication device, and the testing step includes a step of detecting when the detecting step detects a communication failure. And controlling the operation of the wireless communication system. 27. The wireless communication device according to claim 21, wherein, in the connecting step, the first wireless base station and the second wireless base station are connected with a radio wave output larger than a radio wave output used for communication by the wireless communication device. A method for controlling a wireless communication system, comprising: 28. The method according to claim 21, wherein the connecting step includes a determining step of determining whether the first wireless base station and the second wireless base station can be connected. A control method for a wireless communication system, comprising: connecting the first wireless base station and the second wireless base station with a radio wave output based on the determination in the determining step. 29. The method for controlling a wireless base station in a wireless communication system connectable to a wireless communication apparatus using a wireless line and having a plurality of wireless base stations accommodated in a switching device, the method comprising: A control method for a wireless communication base station, comprising: a connecting step of connecting using a wireless line; and a test step of testing an operation of the wireless communication system using the wireless line in the connecting step. 30. The control method for a radio base station according to claim 29, wherein the test step tests an operation of the radio base station. 31. The wireless communication system according to claim 29, wherein, in the test step, an operation of the wireless communication system is tested by forming a loop of a communication path with the another wireless base station by a wireless line in the connection step. Control method of the radio base station to be described. 32. The wireless communication system according to claim 29, wherein the wireless base station is switchable between a first mode operating as a wireless base station and a second mode operating as a wireless communication device. A method for controlling a wireless communication base station, comprising connecting between a wireless base station in a first mode and a wireless base station in the second mode. 33. The control method for a wireless communication base station according to claim 29, wherein in the test step, an operation of the wireless communication system is tested at regular intervals. 34. The control of a wireless communication base station according to claim 29, wherein the test step tests an operation of the wireless communication system when a communication failure of communication by the wireless communication device is detected. Method. 35. The wireless base station according to claim 29, wherein, in the connecting step, the wireless base station is connected to the another wireless base station with a radio wave output larger than a radio wave output used in communication by the wireless communication device. Control method. 36. The connection step according to claim 29, wherein the connecting step includes a determining step of determining whether or not the wireless base station can be connected to the another radio base station. A method for controlling a radio base station, wherein the connection with the other radio base station is performed at an output.