JPH11274996A - Restart system for base station device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a restart system for a base station device, where the base station device is restarted through remote control without the need for a visit of a maintenance personnel to an installed position of the base station device, even when ISDN packet communication is disabled in the base station device. SOLUTION: This system is provided with a subscriber line state detection means 45 that detects the state of an ISDN subscriber line, a condition setting section to which condition data representing the state of an ISDN subscriber line are preset, and comparison and reset means 51, 52 that compare a state detection signal detected by the subscriber line state detection means 45 with the condition data set to the condition setting section for resetting a base station device when they are coincident, and a subscriber line test device connecting to an ISDN exchange network sets a state of the ISDN subscriber line and resets and restarts the base station device. Thus, even when ISDN packet communication is not available in the base station device, the base station device can be restarted through remote control, without the need for a visit by a maintenance personnel to an installed position of the base station device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a restart method for a base station apparatus, and more particularly to a restart method for a base station apparatus for restarting a base station in a mobile communication system.

[0002]

2. Description of the Related Art In a mobile communication system such as a PHS (Personal Handy Phone System), a base station device is connected to an ISDN switching network, and the base station device performs a call connection with a mobile device via a radio line. Offers call services. FIG. 6 shows a block diagram of an example of a conventional PHS base station device. In the figure, the base station device 10 has D
It comprises an SU (line connection device) 12, a control unit 14, and a radio unit 16. DSU 12 is connected to ISDN switching network 22 through subscriber line 20. The control unit 14 performs control for connecting a line between the mobile device and the ISDN switching network 22, and includes a packet signal processing unit 17, a CPU 18, a reset generation unit 19, and the like. The wireless unit 16 connects to the mobile device via a wireless line.

[0003] The base station apparatus 10 supports ISDN packet communication by a packet signal processing unit 17 in a control unit 14. When a failure occurs in the base station apparatus 10 and a CPU alarm occurs, and the base station apparatus 10 stops functioning, the ISD
When a reset command is input from the maintenance control console 23 of the control station connected to the N switching network 22 to the base station device 10 by packet communication, the reset command is supplied from the packet signal processing unit 17 to the CPU 18,
Activates the reset generation unit 19 and resets each unit of the base station device 10. As a result, the base station device 10 restarts.

[0004]

However, in the above-mentioned conventional restart system, the CPU 18 generates
If the software at the location that supports packet communication on the memory inside is destroyed, or the initial setting value for the packet signal processing unit 17 that supports ISDN packet communication is destroyed, Table 23
Makes it impossible for the base station apparatus 10 to receive the reset command of the packet communication transmitted from the base station apparatus 10, and the base station apparatus 10 cannot be restarted. In such a case, there is a problem that the maintenance person must go to the installation location of the base station device 10 and restart the base station device 10.

[0005] The present invention has been made in view of the above points,
Even when ISDN packet communication becomes impossible in the base station device, a base station device restart method that allows a maintenance person to remotely restart the base station device without going to the installation location of the base station device The purpose is to provide.

[0006]

According to a first aspect of the present invention, there is provided a base station apparatus which is connected to an ISDN switching network and restarts a base station apparatus which connects a call with a mobile station via a radio line. In the restart method, an ISDN is provided to the base station apparatus.
Subscriber line state detecting means for detecting the state of the subscriber line; condition setting means for presetting condition data representing the ISDN subscriber line state; and a state detection signal detected by the subscriber line state detecting means. And a comparing and resetting means for resetting the base station device when the condition data set in the condition setting means are compared with each other, and resetting the base station apparatus, and from a subscriber line tester connected to the ISDN switching network. The IS
The state of the DN subscriber line is set, and the base station device is reset and restarted.

Thus, the state of the ISDN subscriber line is set from the subscriber line tester connected to the ISDN switching network, and the base station apparatus is reset when the state detection signal and the condition data match. Also, even when ISDN packet communication becomes impossible in the base station apparatus, the maintenance person can restart the base station apparatus by remote control without going to the installation location of the base station apparatus.

According to a second aspect of the present invention, in the restart method of the base station apparatus according to the first aspect, an alarm detecting means for detecting an alarm of the base station apparatus and activating the comparing and resetting means when the alarm is detected. Having. As described above, since the base station apparatus is restarted by operating the comparing and resetting means only when an alarm of the base station apparatus is detected, the base station apparatus malfunctions when the base station apparatus does not issue an alarm. Can be prevented from being restarted.

According to a third aspect of the present invention, in the restart method of the base station apparatus according to the second aspect, the condition data of the condition setting means is changed by a transmission command from a maintenance console connected to the ISDN switching network. Condition data setting changing means for performing the setting. As described above, since the condition data of the condition setting means is changed by the transmission command from the maintenance console, the condition data is changed according to the installation status of the base station device, so that the base station device issues an alarm. When it does not exist, it is possible to prevent the base station device from being restarted due to a malfunction.

According to a fourth aspect of the present invention, in the restart method of the base station apparatus according to the second aspect, the comparing and resetting means determines that the coincidence between the state detection signal and the condition data has continued for a predetermined time. The apparatus has a persistence detecting means for detecting, and resets the base station apparatus when the persistence detecting means detects. As described above, the base station device is reset when it is detected that the match between the state detection signal and the condition data has continued for a predetermined time, so that the base station device restarts due to malfunction when the base station device does not issue an alarm. Can be prevented.

According to a fifth aspect of the present invention, in the restarting method of the base station apparatus according to the second aspect, the alarm detecting means detects a warning by a transmission command from a maintenance console connected to the ISDN switching network. And permission means for operating the comparison and reset means. As described above, in order to activate the comparison and reset means except when an alarm is detected by the alarm detection means according to a transmission command from the maintenance control console, the maintenance of the test of the subscriber line state detection means and the condition setting means and the comparison and reset means is performed. It can be done with a desk.

[0012]

FIG. 1 shows a PH to which the present invention is applied.
FIG. 2 shows a block diagram of a first embodiment of the S base station apparatus. In the figure, a DSU (line connection device) 3 is provided in the base station device 30.
2, a control unit 34 and a wireless unit 36. DS
U32 is connected to an ISDN switching network 42 via an ISDN subscriber line 40. The DSU 32 has an interface circuit unit 44 and a subscriber line state detection unit 45.

The interface circuit unit 44 connects the ISDN subscriber line 40 to the packet signal processing unit 46 of the control unit 34. The subscriber line state detection unit 45 is hardware that is not controlled by the control unit 34 and is supplied with power from the ISDN switching network 42 through the ISDN subscriber line 40. The subscriber line state detector 45 is a circuit that detects the synchronization state of the ISDN subscriber line 40 and the state of the loopback test mode during the test, and operates regardless of whether the control unit 34 is normal or abnormal. I detected by the subscriber line state detector 45
During the test, the state detection signal of the SDN subscriber line is transmitted to the control unit 34.
Is supplied to the reset output condition comparing unit 51 in the above.

The control unit 34 includes a mobile unit and an ISDN switching network 42.
To control the connection to the line between
Is connected to the mobile device by a wireless line. Control unit 3
Reference numeral 4 includes a CPU alarm detection unit 50, a reset output condition comparison unit 51, a reset signal generation unit 52, and an AND gate 53 in addition to the packet signal processing unit 46, the CPU 47, and the reset generation unit 48.

The packet signal processing unit 46 supports packet communication, and if a failure occurs in the base station device 30 and the CP
When U47 generates a CPU alarm and the base station apparatus 10 stops functioning, a reset command is transmitted from the subscriber line tester 55 of the control station connected to the ISDN switching network 42 to the base station apparatus 30 by packet communication. When input, this reset command is sent from the packet signal processing unit 46 to the CPU 4.
7 and the CPU 47 activates the reset output unit 48. The reset signal (low level) output from the reset output unit 48 is passed through the AND gate 53 to the base station 30.
And resets each unit of the base station device 30.

When a failure occurs in the base station apparatus 30 and the CPU 47 generates a CPU alarm, the CPU alarm detection section 50 detects the CPU alarm state and supplies a detection signal to the reset output condition comparison section 51. The reset output condition comparing section 51, when supplied with the CPU alarm state detection signal from the CPU alarm detection section 50, detects the reset output condition data preset in the built-in register and the subscriber line state detection section 45. The detected signal is compared with the state detection signal of the subscriber line, and when they match, a match detection signal is supplied to the reset signal generation unit 52. When supplied with the coincidence detection signal, the reset signal generation section 52 generates a reset signal (low level) and outputs the signal through the AND gate 53 to the base station apparatus 3.
0, so that each unit of the base station device 30 is reset.

The subscriber line tester 55 is connected to, for example, a control station, and performs a power supply mode confirmation test and a loopback test of a connected subscriber line such as a base station device. Here, if a failure occurs in the base station apparatus 30 and the CPU 47 generates a CPU alarm and the base station apparatus 10 stops functioning, the ISD
If N-packet communication is possible, a reset command is input from the subscriber line tester 55 of the control station connected to the ISDN switching network 42 to the base station device 30 by packet communication, so that the reset output unit 48 is set. It is possible to start up, reset each unit of the base station device 30, and restart.

On the other hand, if the CPU 47 generates a CPU alarm and the base station apparatus 10 stops functioning, the generation of the CPU alarm may destroy software at a location in the memory within the CPU 47 that supports packet communication. , IS
When the initial set value for the packet signal processing unit 46 supporting the DN packet communication is destroyed, the initial value is preset in the built-in register of the reset output condition comparison unit 51 for the ISDN subscriber line 40 of the ISDN switching network 42. The same condition as the reset output condition data is set.

Thus, the reset output condition comparing section 51
In this case, the reset output condition data preset in the built-in register matches the subscriber line state detection signal detected by the subscriber line state detection section 45, and the coincidence detection signal is supplied to the reset signal generation section 52. Then, a reset signal (low level) is generated, and each unit of the base station device 30 is reset and restarted.

FIG. 2 is a block diagram showing a main part of a second embodiment of the PHS base station apparatus to which the present invention is applied. In the figure,
1 are given the same reference numerals. In FIG. 2, base station apparatus 30 has two ISDN subscriber lines 40 ₁ , 4
0 ₂ is pulled in and connected to the two subscriber line state detectors 45 ₁ and 45 ₂ in the DSU 32. In the condition setting unit (built-in register) 60 in the reset output condition comparing unit 51, out-of-sync state data and loopback test state data are preset as reset output condition data.

[0021] Each comparator 61 and 62 compare the respective state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, 45 _2, and respective state data and loopback test status data out of synchronization When they match, a high-level match detection signal is generated and supplied to the flip-flops 63 and 64, respectively. Each of the flip-flops 63 and 64 sets its output signal to a low level in response to a clear input, and supplies the output signal to the AND gate 65 as a high level when a high-level match detection signal is supplied from the comparators 61 and 62.

The output signal of the AND gate 65 is supplied to the reset signal generator 52. When the built-in edge detector 66 detects the rising edge of the output signal of the AND gate 65, the reset signal generator 52 generates a low-level reset signal, outputs it from the terminal 67, and supplies the signal to the AND gate 68. The CPU alarm detection unit 50 has a CP
The low level (status) is supplied to the AND gate 68 in the reset output condition comparison unit 51 at a low level (status) except in the U alarm state, and at a high level (status) in the CPU alarm state. The output signal of the AND gate 68 is supplied to the flip-flop 63 through a clear input. The output signal of the AND gate 68 and the inverted signal of the output signal of the flip-flop 63 are supplied to the AND gate 69, and the output signal of the AND gate 69 is supplied to the flip-flop 66 by inputting a clear signal to the flip-flop 66. Each of the flip-flops 63 and 64 is cleared when the clear input is at a low level.

Here, when a CPU alarm is generated and the base station apparatus 10 stops functioning, when the subscriber line testing machine 55
To generate out-of-sync state to ISDN subscriber line 40 ₁ of the SDN switching network 42, subsequently performing a loopback test to ISDN subscriber line 40 _2. Thereby, the comparison unit 61
Generates a coincidence detection signal of the high level for the state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, in which the out-of-sync state data match. Since the CPU alarm detection unit 50 detects the CPU alarm and outputs a high level (status) in the flip-flops 63 and 64, the clear input is released. (When the CPU alarm is not detected, the CPU alarm detection unit 50 outputs a low level (status). Therefore, a clear input is supplied, and a match signal with the state data is input from the comparison unit 61. Also, the flip-flop 63 does not operate.) The flip-flop 63 outputs a high level in response to the coincidence detection signal of the comparing section 61. In addition, the clear input of the flip-flop 64 is released by the high-level output of the flip-flop 63. Thus, if the states do not match in the order that the comparing unit 61 detects a condition match and then the comparing unit 62 detects a condition match, the device is not reset.

[0024] Then, the comparison unit 62 generates the state detection signal of a subscriber line, which is detected by the subscriber line state detecting unit 45 _2, the coincidence detection signal of a high level for a loop-back test condition data matches. As a result, the flip-flop 64 becomes a high level output. At this time, the reset signal generation unit 52 generates a low-level reset signal and outputs it from the terminal 67. At the same time, AND gate 68,6
9, the flip-flops 63 and 64 are cleared.

[0025] In this embodiment, when the base station apparatus 10 generates a CPU alarm stops functioning, off condition has occurred synchronization ISDN subscriber lines 40 _1, ISDN Following this
Only when performing a loopback test on the subscriber line 40 _2, the reset signal is generated by the reset signal generating section 52 each section of the base station apparatus 30 is restarted is reset,
This prevents the base station device 30 from being restarted due to a malfunction.

FIG. 3 is a block diagram showing a main part of a third embodiment of the PHS base station apparatus to which the present invention is applied. In the figure,
2 are given the same reference numerals. In FIG. 3, two ISDN subscriber lines 40 ₁ and 4 are connected to a base station device 30.
0 ₂ is pulled in and connected to the two subscriber line state detectors 45 ₁ and 45 ₂ in the DSU 32. Also, ISDN subscriber lines 40 ₁ interface circuit 4
4 is connected. The interface circuit unit 44 connects the subscriber line 40 to the packet signal processing unit 46 of the control unit 34.

The packet signal processing section 46 supports packet communication, and sends a signal from the subscriber line tester 55 of the control station connected to the ISDN switching network 42 to the base station apparatus 30.
When a setting change command is input by packet communication, the setting change command is transmitted from the packet signal processing unit 46 to the CP.
The CPU 47 supplies the reset output condition data to the condition setting unit (built-in register) 70 in the reset output condition comparison unit 51.

As reset output condition data, for example, out-of-synchronization state data and loopback test state data are set in advance, but frequently synchronized with the ISDN subscriber lines 40 ₁ and 40 ₂ depending on the installation state of the base station apparatus 30. When the out-of-sync occurs, the setting can be changed from out-of-sync state data to other state data as reset output condition data.

[0029] Each comparator 61 and 62 are compared with each state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, 45 _2, and a reset output condition data condition setting unit 70, When they match, a high-level match detection signal is generated and supplied to the flip-flops 63 and 64, respectively. Each of the flip-flops 63 and 64 sets its output signal to a low level in response to a clear input, and supplies the output signal to the AND gate 65 as a high level when a high-level match detection signal is supplied from the comparators 61 and 62.

The output signal of the AND gate 65 is supplied to the reset signal generator 52. When the built-in edge detector 66 detects the rising edge of the output signal of the AND gate 65, the reset signal generator 52 generates a low-level reset signal, outputs it from the terminal 67, and supplies the signal to the AND gate 68. The CPU alarm detection unit 50 has a CP
The low level (status) is supplied to the AND gate 68 in the reset output condition comparison unit 51 at a low level (status) except in the U alarm state, and a high level (status) in the CPU alarm state. The output signal of the AND gate 68 is supplied to the flip-flop 63 through a clear input. The output signal of the AND gate 68 and the inverted signal of the output signal of the flip-flop 63 are supplied to the AND gate 69, and the output signal of the AND gate 69 is supplied to the flip-flop 66 by inputting a clear signal to the flip-flop 66. Each of the flip-flops 63 and 64 is cleared when the clear input is at a low level.

Here, when a CPU alarm is generated and the base station apparatus 10 stops functioning, the subscriber line tester 55
To ISDN subscriber line 40 ₁ of the SDN switching network 42 generates the same state as the reset output condition data condition setting unit 70, followed by a reset output condition of condition setting unit 70 to ISDN subscriber line 40 ₂ data and The same state, that is, a loopback test is performed. Thereby, the comparison unit 61
Generates a coincidence detection signal of the high level for the state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, in which the out-of-sync state data match. Since the CPU alarm detection unit 50 detects the CPU alarm and outputs a high level (status) in the flip-flops 63 and 64, the clear input is released. (When the CPU alarm is not detected, the CPU alarm detection unit 50 outputs a low level (status). Therefore, a clear input is supplied, and a match signal with the state data is input from the comparison unit 61. Also, the flip-flop 63 does not operate.) The flip-flop 63 outputs a high level in response to the coincidence detection signal of the comparing section 61. In addition, the clear input of the flip-flop 64 is released by the high-level output of the flip-flop 63. Thus, if the states do not match in the order that the comparing unit 61 detects a condition match and then the comparing unit 62 detects a condition match, the device is not reset.

[0032] Then, the comparison unit 62 generates the state detection signal of a subscriber line, which is detected by the subscriber line state detecting unit 45 _2, the coincidence detection signal of a high level for a loop-back test condition data matches. As a result, the flip-flop 64 becomes a high level output. At this time, the reset signal generation unit 52 generates a low-level reset signal and outputs it from the terminal 67. At the same time, AND gate 68,6
9, the flip-flops 63 and 64 are cleared.

In this embodiment, the setting can be changed from the out-of-sync state data to other state data as reset output condition data depending on the installation state of the base station apparatus 30. Thereby, it is possible to prevent the base station device 30 from being restarted due to a malfunction. FIG. 4 is a block diagram showing a main part of a fourth embodiment of the PHS base station apparatus to which the present invention is applied. 2, the same parts as those in FIG. 2 are denoted by the same reference numerals. In FIG. 4, base station device 30 has two lines of I
SDN subscriber lines 40 ₁ and 40 ₂ are pulled in, and DSU3
2 are connected to the two subscriber line state detectors 45 ₁ and 45 ₂ respectively. In the condition setting unit (built-in register) 60 in the reset output condition comparing unit 51, out-of-sync state data and loopback test state data are preset as reset output condition data.

[0034] Each comparator 61 and 62 compare the respective state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, 45 _2, and respective state data and loopback test status data out of synchronization When both match, a high-level match detection signal is generated, and the timer unit 7
1, 72 respectively. The timer unit 71 is a comparison unit 6
The duration of the high-level coincidence detection signal supplied from 1 is counted, and when the duration exceeds a predetermined threshold, a high-level signal is generated and supplied to the flip-flop 63.

Similarly, the timer section 72 counts the duration of the high-level coincidence detection signal supplied from the comparison section 62, generates a high-level signal when the duration exceeds a predetermined threshold, and outputs a high-level signal. Supply to the pump 64. Each of the flip-flops 63 and 64 sets its output signal to a low level by a clear input, and
When a higher level signal is supplied, the output signal is supplied to the AND gate 65 as a high level.

The output signal of the AND gate 65 is supplied to the reset signal generator 52. When the built-in edge detector 66 detects the rising edge of the output signal of the AND gate 65, the reset signal generator 52 generates a low-level reset signal, outputs it from the terminal 67, and supplies the signal to the AND gate 68. The CPU alarm detection unit 50 has a CP
The low level (status) is supplied to the AND gate 68 in the reset output condition comparison unit 51 at a low level (status) except in the U alarm state, and at a high level (status) in the CPU alarm state. The output signal of the AND gate 68 is supplied to the flip-flop 63 through a clear input. The output signal of the AND gate 68 and the inverted signal of the output signal of the flip-flop 63 are supplied to the AND gate 69, and the output signal of the AND gate 69 is supplied to the flip-flop 66 by inputting a clear signal to the flip-flop 66. Each of the flip-flops 63 and 64 is cleared when the clear input is at a low level.

Here, when the base station apparatus 10 stops functioning by generating a CPU alarm, the subscriber line tester 55
To generate out-of-sync state to ISDN subscriber line 40 ₁ of the SDN switching network 42, subsequently performing a loopback test to ISDN subscriber line 40 _2. Thereby, the comparison unit 61
Generates a coincidence detection signal of high level lasts for a predetermined time or more for the state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, in which the out-of-sync state data match. The flip-flops 63 and 64 are connected to the CPU alarm detector 5
Since 0 detects a CPU alarm and outputs a high level (status), the clear input is released. (Note that
When the CPU alarm is not detected, the CPU alarm detection unit 50 outputs a low level (status).
The flip-flop 63 does not operate even if a clear input is supplied and a match signal with the state data is input from the comparing unit 61. ) The flip-flop 63 outputs a high-level signal according to the coincidence detection signal of the comparator 61. The high-level output of the flip-flop 63 causes the flip-flop 6
4 is also released. Thereby, the comparison unit 61
If the states do not match in the order of detecting a condition match and then comparing unit 62 detecting a condition match, the device will not be reset.

[0038] Then, the comparison unit 62 matches the high level lasts for a predetermined time or more for the state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _2, in which the loop-back test condition data matches Generate a detection signal. As a result, the flip-flop 64 becomes a high level output. At this time, the reset signal generation unit 52 generates a low-level reset signal and outputs it from the terminal 67. With this,
Flip-flop 6 through AND gates 68 and 69
3, 64 are cleared.

[0039] In this embodiment, when the base station apparatus 10 generates a CPU alarm stops functioning, off state is generated synchronously sustained over a predetermined time at ISDN subscriber lines 40 _1,
Only when performing a loopback test lasts for a predetermined time or more at ISDN subscriber line 40 ₂ Following this, the reset signal is generated by the reset signal generating section 52 each section of the base station apparatus 30 are reset again is activated, it is possible to prevent the base station apparatus 30 is restarted by the malfunction or subscriber line state detector 45 _1, 45 _2, the noise caused while the setting change of the reset output setting data condition setting unit 60.

FIG. 5 is a block diagram showing a main part of a fifth embodiment of the PHS base station apparatus to which the present invention is applied. In the figure,
3 are given the same reference numerals. In FIG. 5, a base station device 30 has two ISDN subscriber lines 40 ₁ , 4
0 ₂ is pulled in and connected to the two subscriber line state detectors 45 ₁ and 45 ₂ in the DSU 32. Also, ISDN subscriber lines 40 ₁ interface circuit 4
4 is connected. The interface circuit unit 44 connects the subscriber line 40 to the packet signal processing unit 46 of the control unit 34.

The packet signal processing unit 46 supports packet communication, and transmits a signal from the subscriber line tester 55 of the control station connected to the ISDN switching network 42 to the base station 30.
When a test setting command is input by packet communication, the test setting command is transmitted from the packet signal processing unit 46 to the CP.
The CPU 47 supplies the high-level signal (status) to the test permission circuit 80 in accordance with the test setting command.
1 and supplied to the AND gate 68. Test permission circuit 8
0 is CP when the test setting command is not supplied.
The detection signal (high-level status signal at the time of alarm detection) of the U alarm detection unit 50 is supplied to the AND gate 68 in the reset output condition comparison unit 51 through.

In the condition setting section (built-in register) 60 in the reset output condition comparing section 51, out-of-synchronization state data and loopback test state data are preset as reset output condition data. Each comparator 61, 62 are compared with each state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, 45 _2, and a reset output condition data condition setting unit 60, match Then, a high-level match detection signal is generated and supplied to the flip-flops 63 and 64, respectively. Flip-flop 6
Each of the output signals 3 and 64 is set to the low level by the clear input, and when the high level coincidence detection signal is supplied from the comparators 61 and 62, the output signal is supplied to the AND gate 65 as the high level.

The output signal of the AND gate 65 is supplied to the reset signal generator 52. When the built-in edge detector 66 detects the rising edge of the output signal of the AND gate 65, the reset signal generator 52 generates a low-level reset signal, outputs it from the terminal 67, and supplies the signal to the AND gate 68. The CPU alarm detection unit 50 has a CP
The low level (status) is supplied to the AND gate 68 in the reset output condition comparison unit 51 at a low level (status) except in the U alarm state, and at a high level (status) in the CPU alarm state. The output signal of the AND gate 68 is supplied to the flip-flop 63 through a clear input. The output signal of the AND gate 68 and the inverted signal of the output signal of the flip-flop 63 are supplied to the AND gate 69, and the output signal of the AND gate 69 is supplied to the flip-flop 66 by inputting a clear signal to the flip-flop 66. Each of the flip-flops 63 and 64 is cleared when the clear input is at a low level.

Here, when a CPU alarm is generated and the base station apparatus 10 stops functioning, the subscriber line tester 55
Reset output condition data and the same state of the condition setting portion 60 to ISDN subscriber line 40 ₁ of the SDN switching network 42, that is, to generate a synchronization loss, followed by ISDN subscriber line 4
0 ₂ with respect to the condition setting section 60 resets the output condition data identical to the state, that is, performs loop-back test. Thus, comparing unit 61 generates a coincidence detection signal of the high level for the state detection signal of a subscriber line, which is detected by the subscriber line state detector 45 _1, in which the out-of-sync state data match.
Since the CPU alarm detection unit 50 detects the CPU alarm and outputs a high level (status) in the flip-flops 63 and 64, the clear input is released. (Note that CP
When the U alarm is not detected, the CPU alarm detection unit 50
Output a low level (status), the clear input is supplied, and the flip-flop 63 does not operate even if a match signal with the state data is input from the comparing unit 61. ) The flip-flop 63 outputs a high-level signal according to the coincidence detection signal of the comparator 61. The high-level output of the flip-flop 63 causes the flip-flop 64
Is also released. Thus, if the states do not match in the order that the comparing unit 61 detects a condition match and then the comparing unit 62 detects a condition match, the device is not reset.

[0045] Then, the comparison unit 62 generates the state detection signal of a subscriber line, which is detected by the subscriber line state detecting unit 45 _2, the coincidence detection signal of a high level for a loop-back test condition data matches. As a result, the flip-flop 64 becomes a high level output. At this time, the reset signal generation unit 52 generates a low-level reset signal and outputs it from the terminal 67. At the same time, AND gate 68,6
9, the flip-flops 63 and 64 are cleared.

In this embodiment, a test setting command is input from the subscriber line tester 55 of the control station to the base station apparatus 30 by packet communication, and a low-level signal (pulse signal) is sent to the test permission circuit 80. By outputting the output, it becomes possible to perform the test of the reset output condition comparison unit 51 from the subscriber line tester 55 of the control station, with the CPU alarm detection unit 50 detecting the CPU alarm state in a pseudo manner.

[0047] Incidentally, the subscriber line state detecting means corresponds to the subscriber line state detecting unit 45, 45 _1, 45 _2, the condition setting means corresponds to the condition setting unit 60, the comparison and resetting means reset output condition comparison And a reset signal generation unit 52. The alarm detection means is a CPU alarm detection unit 50.
, The condition data setting change means corresponds to the packet signal processing unit 46, the CPU 47, and the condition setting unit 70, the persistence detection means corresponds to the timer units 71, 72, and the permission means corresponds to the packet signal processing unit 46, the CPU 47, This corresponds to the test permission circuit 80.

[0048]

As described above, the first aspect of the present invention provides
The base station apparatus includes a subscriber line state detecting means for detecting a state of the ISDN subscriber line, condition setting means for presetting condition data representing the ISDN subscriber line state, and a subscriber line state detecting means. Comparing the detected state detection signal with the condition data set in the condition setting means, and resetting the base station apparatus when they match with each other, and connecting to the ISDN switching network; The state of the ISDN subscriber line is set from the subscriber line tester, and the base station apparatus is reset and restarted.

Thus, the state of the ISDN subscriber line is set from the subscriber line tester connected to the ISDN switching network, and the base station apparatus is reset when the state detection signal and the condition data match. Also, even when ISDN packet communication becomes impossible in the base station apparatus, the maintenance person can restart the base station apparatus by remote control without going to the installation location of the base station apparatus.

Further, the invention according to claim 2 has an alarm detecting means for detecting an alarm of the base station apparatus and activating the comparing and resetting means when the alarm is detected. in this way,
Since the base station device is restarted by operating the comparing and resetting means only when an alarm of the base station device is detected, the base station device is restarted erroneously when the base station device does not issue an alarm. Can be prevented.

The third aspect of the present invention provides an ISDN
Condition data setting change means for changing the condition data of the condition setting means by a transmission command from a maintenance console connected to the switching network. As described above, since the condition data of the condition setting means is changed by the transmission command from the maintenance console, the condition data is changed according to the installation status of the base station device, so that the base station device issues an alarm. When it does not exist, it is possible to prevent the base station device from being restarted due to a malfunction.

Further, in the invention according to claim 4, the comparing and resetting means includes a persistence detecting means for detecting that the coincidence between the state detection signal and the condition data has been maintained for a predetermined time, and the sustaining detecting means. Resets the base station device upon detection of. As described above, the base station device is reset when it is detected that the match between the state detection signal and the condition data has continued for a predetermined time, so that the base station device restarts due to malfunction when the base station device does not issue an alarm. Can be prevented.

The invention according to claim 5 is an ISDN
A permission means for operating the comparing and resetting means except when an alarm is detected by the alarm detecting means in response to a transmission command from a maintenance console connected to the switching network. in this way,
In order to activate the comparing and resetting means except when an alarm is detected by the alarm detecting means by a transmission command from the maintenance control console, a test of the subscriber line state detecting means, the condition setting means and the comparing and resetting means shall be performed by the maintenance control console. Can be.

[Brief description of the drawings]

FIG. 1 shows a first example of a PHS base station apparatus to which the present invention is applied.
It is a block diagram of an example.

FIG. 2 shows a second example of the PHS base station apparatus to which the present invention is applied.
It is a block diagram of the important section of an example.

FIG. 3 shows a third example of a PHS base station apparatus to which the present invention is applied.
It is a block diagram of the important section of an example.

FIG. 4 shows a fourth example of the PHS base station apparatus to which the present invention is applied.
It is a block diagram of the important section of an example.

FIG. 5 shows a fifth example of the PHS base station apparatus to which the present invention is applied.
It is a block diagram of the important section of an example.

FIG. 6 is a block diagram of an example of a conventional PHS base station device.

[Explanation of symbols]

REFERENCE SIGNS LIST 30 base station device 32 DSU (line connection device) 34 control unit 36 radio unit 40, 40 ₁ , 40 ₂ ISDN subscriber line 42 ISDN switching network 44 interface circuit unit 45 subscriber line state detection unit 51 reset output condition comparison unit 60 , 70 Condition setting section (built-in register) 61, 62 Comparison section 63, 64 Flip-flop 65, 68, 69 AND gate 66 Edge detection section 71, 72 Timer section 80 Test permitting circuit

Claims (5)

[Claims] 1. A base station apparatus restarting system for restarting a base station apparatus connected to an ISDN switching network and connecting a call with a mobile station via a wireless line, wherein the base station apparatus has an ISDN subscription. Subscriber line state detecting means for detecting a state of a subscriber line; condition setting means for presetting condition data representing the ISDN subscriber line state; and a state detection signal detected by the subscriber line state detecting means. Comparing and resetting the base station device when the condition data set in the condition setting means are matched with each other, and resetting the base station apparatus. The subscriber line tester connected to the ISDN switching network A method of restarting a base station device, comprising setting the state of an ISDN subscriber line, resetting and restarting the base station device. 2. The restart method for a base station device according to claim 1, further comprising: an alarm detecting unit that detects an alarm of the base station device and activates the comparing and resetting unit when the alarm is detected. A restart method for the base station device. 3. The condition data setting change unit according to claim 2, wherein the condition data of the condition setting unit is changed by a transmission command from a maintenance console connected to the ISDN switching network. A restart method for a base station apparatus, comprising: 4. The restart method of the base station apparatus according to claim 2, wherein the comparing and resetting means has a persistence detecting means for detecting that the coincidence between the state detection signal and the condition data has continued for a predetermined time. And restarting the base station device upon detection of the persistence detecting means. 5. The restart method of a base station device according to claim 2, wherein the comparing and resetting means is performed at a time other than when an alarm is detected by the alarm detecting means by a transmission command from a maintenance console connected to the ISDN switching network. A restart method for a base station apparatus, comprising a permission means for operating the base station apparatus.