JPH1141234A - Performance information monitoring system for radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To collect performance information showing the history of every radio equipment through the transmission channel of a small capacity concerning a performance information monitoring system for radio equipment which monitors the performance information such as transmission power, reception power and BER of every radio equipment at each station in a multiplex radio communication system. SOLUTION: In a radio communication system, a master station device 1 and many slave station devices 2 including repeater stations are respectively provided with storage means 11 and 21, and collecting means 13 and 23 for always collecting performance information a1 of radio equipment 12 and 22 at the present stations and storing it in the storage means 11 and 21 together with time information. In this case, many slave station devices 2 including the repeater stations are respectively provided with transmitting means 24 for reading performance information a2 with relevant time information from the storage means 21 corresponding to a request b1 from the master station device 1 and transmitting it through the specified channel of a radio channel 3 to the radio equipment 22 by radio.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission power and a reception power of radio equipment of each station in a multiplex radio communication system.
Information on the status of each wireless device, such as ER (Bit Error Rate), and wireless line quality information (hereinafter referred to as “performance information”
The present invention relates to a method for monitoring performance information of a wireless device that performs monitoring.

[0002]

2. Description of the Related Art FIG. 9 shows a configuration example of a conventional multiplex radio monitoring and control system. As shown in FIG. 9, the multiplex radio monitoring control system includes a master station device 100 and a number of slave station devices 1.
Reference numeral 10 denotes a system in which a higher-level monitoring system 130 monitors a multiplex wireless communication system connected via a wireless line 120. Many slave station devices 110 include a relay station.
The outline will be described below.

The master station device 100 includes an all-station monitoring unit 101, a self-station monitoring unit 102, and a wireless device 103. The all-station monitoring unit 101 is connected to a higher-level monitoring system 130 via a network. Further, the slave station device 110 includes a self-station monitoring unit 111 and a wireless device 112. The wireless devices 103 and 112 output monitoring information to the local station monitoring units 102 and 111. The monitoring information includes alarm information and performance information. The alarm information is transmitted to the wireless devices 103 and 112.
Is output to the own station monitoring units 102 and 111 at the time when the alarm is issued. Upon receiving the alarm information from the wireless device 112, the own station monitoring unit 111 of the slave station device 110 transmits the alarm information to the master station device 100 via the wireless line 120 without time delay. The all-stations monitoring unit 101 of the parent station device 100 sends the alarm information directly input from the own-station monitoring unit 102 and the alarm information input from the own-station monitoring unit 111 via the wireless line 120 to the host monitoring system 130 via the network. I do.

On the other hand, the performance information of the wireless devices 103 and 112 is collected by the all-station monitoring unit 101 of the master station device 100 in response to a request from the higher-level monitoring system 130 and transmitted to the higher-level monitoring system 130 as follows. In other words, the stations specified by the higher-level monitoring system 130 include both the master station device 100 and the slave station device 110. For example, when the designation is the slave station device 110, the all-stations monitoring unit 101 130 issues a request for information collection to the designated slave station device 110 via the wireless line 120. Then
The local station monitoring unit 111 of the relevant slave station device 110 acquires the performance information at the time of the request from the wireless device 112, supplies the acquired performance information to the wireless device 112, and transmits the performance information to the master station device 100 via the wireless line 120. The all-station monitoring unit 101 of the master station device 100 sends the performance information collected in this way to the higher-level monitoring system 130.

[0005]

SUMMARY OF THE INVENTION
Performance information of each wireless device is collected and monitored for monitoring the status of each wireless device and the quality of the wireless line in the multiplexed wireless communication system under the control by the above procedure. It only sends (notifies) the performance information at the time of the request from the system.

If the performance information is used to statistically analyze the aging of the wireless device or to determine the cause of a failure such as a failure in a wireless line, the history of the wireless device is known. Although it is necessary, in order to realize it with the above-mentioned conventional collection method, the higher-level monitoring system needs to make a request for collection frequently and make a request frequently. In this case, considering a situation where the number of subordinate multiplex wireless communication systems tends to increase, it is necessary to prepare a large-capacity transmission line for performance information, which is difficult to realize.

An object of the present invention is to provide a performance information monitoring method for wireless devices which can collect performance information indicating the history of each wireless device over a small-capacity transmission line.

[0008]

FIG. 1 is a block diagram showing the principle of the first to third aspects of the present invention.

According to the first aspect of the present invention, in a wireless communication system in which a number of slave stations 2 including a master station 1 and a relay station are connected via a wireless line 3, the master station 1 and a relay station are included. A large number of slave station devices 2 are each provided with a storage unit 1
1, 21 and the performance information a1 of the wireless devices 12 and 22 of the own station are constantly collected and stored together with time information in the storage unit 11,
21 and a plurality of slave station devices 2 including a relay station. Each of the slave station devices 2 includes the corresponding performance information with time information a2 from the storage unit 21 in response to a request b1 from the master station device 1. Transmitting means 24 for causing readout wireless device 22 to wirelessly transmit on a specific channel of wireless line 3
It is characterized by having.

That is, in each of the slave stations 2 including the master station 1 and the relay station, the collecting means 13 and 23 constantly collect the performance information a1 of the wireless devices 12 and 22 of the own station and store them together with the time information. It is stored in the means 11 and 21.
In each of the slave units 2 including the relay station, the transmitting unit 24 reads the pertinent time information-added performance information a2 from the storage unit 21 in response to the request b1 from the master station 1, and wirelessly communicates with the wireless device 22. Wireless transmission is performed on a specific channel of the line 3.

Therefore, the master station device can collect performance information indicating the history of the wireless device by designating and requesting the time. According to a second aspect of the present invention, in the performance information monitoring method for a wireless device according to the first aspect, the master station apparatus 1 includes a plurality of slave station apparatuses including its own station or a corresponding relay station in response to an external request. 2 is provided with a collection and transmission unit that collects the performance information a2 with time information from the second and transmits it to the request source.

That is, in the master station device, the collection and transmission means 14
When the transmission request b2 from the outside is directed to the own station, the performance information a2 with the time information is stored in the storage unit 11 of the own station.
And when the transmission request b2 from the outside is directed to the slave station device 2, the performance information a2 with time information is collected from the slave station device 2 by the method according to claim 1 and transmitted to the request source. I do.

Accordingly, the master station device can collect performance information indicating the history of the wireless device requested by the request source, and can transmit the performance information to the request source. According to a third aspect of the present invention, there is provided an upper-level monitoring system for a wireless communication system in which a plurality of slave stations including a master station and a relay station are connected via a wireless line. The monitoring system monitored by the monitoring device 4 is characterized in that the host monitoring system 4 includes means for requesting the master station device 1 to transmit performance information by designating a station and time.

That is, the higher-level monitoring system 4 includes the master station 1
In response to this, when a performance information transmission request b2 is issued by designating a station and a time, the performance information a2 with time information of the wireless device can be received from the master station device 1. Therefore, the higher-level monitoring system does not need to frequently issue a transmission request with a shorter request interval, and can collect performance information indicating the history of the wireless device through a small-capacity transmission line.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a configuration diagram of a multiplex wireless monitoring and control system including a wireless device performance information monitoring method according to the first to third embodiments. A multiplex radio communication system to which this embodiment is applied is a terminal station 3 connected via a radio line in FIG.
0, an intermediate relay station 40, and a terminal station 50. The terminal station 30 is connected to the transport terminal station 60a, and the terminal station 50a.
Is connected to the transport terminal station 60b. Transport terminal stations 60a, 6
Ob is connected to a switching network using an optical fiber as a transmission line.

In such a multiplex radio communication system, the terminal station 30 is connected to the host monitoring system 70 and serves as a master station device of the monitoring system, and the intermediate relay station 40 and the terminal station 50 serve as slave station devices of the monitoring system. It is. Terminal stations 30,5
0 is a wireless terminal unit a, a wireless transmission / reception unit b, a line switching control unit c, an own station monitoring control unit d, a DSC (Digital Service Channel)
An interface unit e is provided.

The terminal station 30 serving as a master station apparatus of the monitoring system includes an all-station monitoring control unit 31 for executing an instruction of the higher-level monitoring system 70. Further, the intermediate relay station 40 includes a wireless transmission / reception unit b, a local station monitoring control unit d, and a DSC interface unit e. The transport terminal station 60a is connected to the wireless terminal section a of the terminal station 30, and the wireless terminal section a of the terminal station 50 includes
The transport terminal station 60b is connected.

An outline of the operation when a signal is transmitted from the transport terminal station 60a to the transport terminal station 60b will be described. An optical transmission signal from one carrier terminal station 60a is input to the wireless terminal unit a of the terminal station 30, and is converted into an electric signal (unipolar signal). The converted unipolar signal is modulated by the wireless transmission / reception unit b, becomes a wireless high-frequency signal, and is wirelessly transmitted to an adjacent station (in the illustrated example, the intermediate relay station 40). In the intermediate relay station 40, the radio transmitting / receiving unit b demodulates the received radio high-frequency signal once, corrects the bit error, converts it to a radio high-frequency signal again, and transmits the radio radio signal to the adjacent station (the terminal station 50 in the illustrated example) by radio. You. In the terminal station 50, the radio transmitting / receiving unit b demodulates the received high-frequency signal into an electric signal (unipolar), and performs bit error correction. The electric signal (unipolar signal) on which bit error correction has been performed is converted into an optical transmission signal by the wireless terminal unit a and transmitted to the other carrier terminal 60b.

Normally, in a multiplex radio communication system, n + 1
Control of protection line switching, which is called switching, consisting of n working lines and one protection line, is performed. That is, the wireless terminal unit a and the wireless transmission / reception unit b are, for example, specifically, for example, as shown in FIGS.
It is configured as shown in FIG. FIGS. 3A and 3B are configuration examples of the terminal stations 30 and 50 having a working / standby switching method adopted in a multiplex wireless communication system. FIGS. 3A and 3B show a configuration example of the n + 1 switching. However, FIG.
(a) and (b) are configuration examples when a signal is transmitted from the transport terminal station 60a to the transport terminal station 60b.

3 (a) and 3 (b), the terminal stations 30 and 50 are provided with n + 1 radio transmitting / receiving units b. In the wireless terminal unit a of the terminal station 30, n SW units a11 connected to (n + 1) wireless transmission / reception units b and n SW units a11
And n optical / electrical conversion units a12 provided between the transport terminal 60a and the transport terminal 60a. On the other hand, in the wireless terminal unit a of the terminal station 50, n SW units a11 connected to (n + 1) wireless transmission / reception units b, the n SW units a11 and the transport terminal 60b
And n electrical / optical converters a13 are provided between them.

The line switching control unit c controls the switching of the n SW units a11 based on the monitoring information of the wireless line, and switches between the working and the standby. That is, the optical transmission signal from the transport terminal station 60a is transmitted to the optical / electrical conversion section a12 of the wireless terminal section a of the terminal station 30.
Is converted into an electric signal (unipolar signal). The converted unipolar signal is input to the working wireless transmission / reception unit b via the SW unit a11. If an abnormality occurs in the working line, the SW that performs the switching operation under the control of the line switching control unit c
Switching to the spare wireless transmitting / receiving unit b is performed by the unit a11.

Returning to FIG. 2, the own station monitoring and control unit d monitors and monitors the wireless terminals such as the wireless terminal unit a and the wireless transmitting and receiving unit b in the terminal stations 30 and 50. Then, monitoring and control of wireless devices such as the wireless transmitting / receiving unit b are performed. Then, the own station monitoring control unit d of the terminal station 30 outputs the monitoring information to the all station monitoring control unit 31 in response to the request. Intermediate relay station 4
0 and the own-station monitoring control unit d of the terminal station 50
Output to the DSC interface unit e in response to the request from 0.

The DSC interface unit e communicates the monitoring information within the own station with the D-channel which is a specific channel of the radio line.
Timing control and signal insertion for performing via SC
Perform extraction, etc. The DSC is a channel used for transmitting various types of control information. In this embodiment, the DSC is used for transmitting performance information and alarm information. The all-stations monitoring control unit 31 of the terminal station 30 collects information of the monitoring stations in the wireless route (in the illustrated example, the own-station terminal station 30, the intermediate relay station 40, and the terminal station 50), and notifies the higher-level monitoring system 70 of the monitoring information. I do.

Next, the terminal station 30, the intermediate relay station 40, and the terminal station 5
0 will be described in detail with reference to FIGS. FIG. 4 is a detailed configuration diagram of the terminal station 30. The wireless transmission / reception unit b includes a wireless device such as a modulation / demodulation unit b-1, a transmission / reception unit b-2, an AMP unit b-3, a device information reception unit b-4, and a performance information reception unit b-5. The device information receiving unit b-4 receives the alarm / status information of the wireless device. The performance information receiving unit b-5 receives performance information such as the transmission power of the wireless device, the reception input level, and the bit error rate.

The own station monitoring and control unit d includes a own station device information collection processing unit d-1 and a own station performance information collection processing unit d-
2 to collect monitoring information of the wireless transmission / reception unit b. That is, the local station device information collection processing unit d-1 is
Gather alarm status information. The own station performance information collection processing unit d-2 includes a storage unit (see FIG. 7), and collects performance information of the wireless transmission / reception unit b.
It is stored one by one in the storage unit in association with the device name and the collection time.

The all-station monitoring control unit 31 includes an all-station device information collection processing unit 31a and an all-station performance information collection processing unit 31.
b, line switching control information collection processing unit 31c, all monitoring information processing unit 31d, upper monitoring system interface unit 31
e, a device information display section 31f and the like. The all-station monitoring controller 31 collects and displays device information (alarm status), performance information, and line switching information of each station including the own station, and notifies the higher-level monitoring system.

More specifically, the all monitoring information processing section 31d
The monitoring information of the own station is collected from the own station monitoring control unit d, the monitoring information of the other station is collected from the DSC interface unit e, and the line switching information is collected from the line switching control unit c of the own station. Then, the all-monitoring information processing unit 31d processes the collected information, displays the processed information on the device information display unit 31f, and notifies the higher-level monitoring system 70 of necessary information through the higher-level monitoring system interface unit 31e.

FIG. 5 is a detailed block diagram of the intermediate relay station. In the intermediate relay station 40, the wireless transmission / reception unit b, the own station monitoring / control unit d, and the DSC interface unit e are configured and function similarly to those of the terminal station 30. That is, in the intermediate relay station 40, the monitoring information of the wireless transmitting / receiving unit b is collected by the own station monitoring / control unit d, and transmitted to the master station device (the terminal station 30) through the DSC interface unit e.

FIG. 6 is a detailed block diagram of the terminal station 50. The terminal station 50 also has a wireless transmission / reception unit b, own station monitoring / control unit d, D
The SC interface unit e is configured in the same manner as the terminal station 30. Similarly, the monitoring information of the wireless transmission / reception unit b is collected by the own station monitoring control unit d and transmitted to the master station device (terminal station 30) through the DSC interface unit e. You. However, the line switching information is transmitted from the wireless terminal unit a to the line switching control unit of the opposing terminal station using the channel of the overhead part of the main signal.

A method of monitoring performance information of a wireless device according to the first to third embodiments will be described with reference to FIG. FIG. 7 shows the configuration of the local station performance information collection processing section d-2 and the surroundings in the local station monitoring control section d. In FIG. 7, the own station performance information collection processing unit d-2 includes a logical processing unit d-21, communication processing units d-22 and d-23 connected thereto, and a storage unit d-2.
4 is provided. Further, the performance information receiving section b-5 of the wireless transmitting / receiving section b includes a communication processing section b-51, and the communication processing section b-51 is provided with a communication processing section d-of the own station performance information collection processing section d-2. 22.

The communication processing section d-23 of the own station performance information collection processing section d-2 transmits the all-station performance information of the terminal station 30 as a master station apparatus between the intermediate relay station 40 and the terminal station 50 via a radio line. The terminal 30 that is connected to the collection processing unit 31b and is the master station device is directly connected to the all-station performance information collection processing unit 31b. The performance information of the wireless device includes information such as transmission power, reception power, and BER. Here, the transmission power is determined by the transmission / reception unit b-2 (FIGS.
6 (see FIG. 6). The reception power is indicated by a reception power value [dBm] of the transmission / reception unit b-2. The BER is indicated by the bit error rate of the main signal detected by the modulation / demodulation unit b-1 (see FIGS. 4 to 6).

These pieces of information are input as voltage values (transmission power, reception power, etc.) and pulse information (BER, etc.) to the performance information receiving section b-5 in the radio transmitting / receiving section b.
The value is converted into digital information by a communication processing unit b-51 in the performance information receiving unit b-5 based on a conversion table prepared in advance. With the converted digital information, the communication processing unit d-22 of the own station performance information collection processing unit d-2 always polls the communication processing unit b-51 in each performance information receiving unit b-5 at a constant cycle. As a result, the data is collected by the communication processing unit d-22. The collected information is taken into the logic processing unit d21, where the time / device identification information is added thereto, and held in the storage unit d-24.

The data stored in the storage unit d-24 is read out by the communication processing unit d-23 and sent to the all-station performance information collection processing unit 31b. The storage unit d-24
Then, as soon as the stored data becomes full, the data is overwritten in chronological order. In the above configuration, the correspondence with the claims is as follows. The terminal station 30 corresponds to the master station device 1. An intermediate relay station 40 and a terminal station 50 correspond to a number of slave stations 2 including a relay station. Storage means 11,
12 corresponds to the storage unit d-24. Wireless device 12,
22 corresponds to the entirety of the modulation / demodulation unit b-1, the transmission / reception unit b-2, and the AMP unit b-3.

The collecting means 13 and 23 mainly include the communication processing section d-51 of the performance information receiving section b-5 and the whole logic processing section d-21 and communication processing section d-22 of the local station performance information processing section. Corresponding. The collection and transmission means 14 mainly corresponds to the all-station performance information collection processing section b. The transmission means 24 mainly includes a communication processing unit d-2.
3 corresponds. The higher-level monitoring system 4 corresponds to the higher-level monitoring and control system 70.

Hereinafter, the operation of the performance information monitoring method of the wireless device according to this embodiment will be described with reference to FIG. FIG. 8 shows an overall flow of performance information collection. In FIG. 8, the terminal station 30 is the master station 30, the intermediate relay station 40 is the slave station 40, and the terminal station 50 is the slave station 50. As described above, the own station monitoring control unit d of each station always collects the performance information of the wireless device and performs the operation of storing the information in the storage unit d-24 of the own station performance information collection processing unit d-2. I have. The host monitoring system 70 sends a request for data collection of information type, location, device, and time to the master station 30.
To the entire monitoring information processing section 31d. All monitoring information processing unit 3
1d outputs a request to the all-station performance information collection processing unit 31b in response to the request. The all-station performance information collection processing section 31b outputs a request to the own station performance information collection processing section d-2 of the requested station based on the location information included in the request.

Own station performance information collection processing section d-2
Reads the information of the designated time and device from the storage unit d-24, and transmits the read designated performance information to the all-station performance information collection processing unit 31b.
At this time, the slave stations 40 and 50 transmit the performance information on the DSC which is a specific channel of the wireless line. Master station 30
Then, the data collected by the all-station performance information collection processing unit 31b as described above is transmitted to the higher-level monitoring system 70 via the all-monitoring information processing unit 31d. That is, in the upper-level monitoring system 70, since each station stores and holds the performance information of the wireless device of the own station together with the time information, it only issues a transmission request at substantially the same interval as in the past, and the performance information having the history information is obtained. Can be collected.

Thus, in this embodiment, since it is not necessary to increase the amount of data transmitted by each station at one time, a small-capacity transmission line DSC can be used, and a monitoring system having a simple configuration can be constructed.

[0038]

As described above, according to the first aspect of the present invention, the master station device can collect performance information indicating the history of the wireless device.

According to the second aspect of the present invention, the master station device comprises:
Performance information indicating the history of the wireless device requested by the request source can be collected and transmitted to the request source. According to the third aspect of the present invention, when the higher-level monitoring system requests the master station device to transmit the performance information by designating the station and the time, the host monitoring system receives the performance information of the corresponding wireless device together with the time information from the master station device. be able to. Therefore,
The higher-level monitoring system does not need to make frequent transmission requests by shortening the request interval, and can collect performance information indicating the history of wireless devices through a small-capacity transmission line.

In short, according to the present invention, the higher-level monitoring system can easily acquire the performance information of the wireless device of each station together with the time information, so as to investigate the cause of a radio line failure or the like and to deteriorate the wireless device over time. Statistical analysis becomes possible. Therefore, it is possible to provide a monitoring system capable of acquiring monitoring information that is very effective for determining the aging of wireless devices.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle of the invention described in claims 1 to 3;

FIG. 2 is a configuration diagram of a multiplex wireless monitoring and control system including a wireless device performance information monitoring method according to an embodiment corresponding to claims 1 to 3;

FIG. 3 is a configuration example of a working / standby switching method adopted in a multiplex wireless communication system. (A) is a configuration example of the terminal station 30. (B) is a configuration example of the terminal station 30.

FIG. 4 is a detailed configuration diagram of a terminal station 30.

FIG. 5 is a detailed configuration diagram of an intermediate relay station.

FIG. 6 is a detailed configuration diagram of a terminal station 50;

FIG. 7 is a diagram showing a configuration of a local station performance information collection processing unit and peripherals;

FIG. 8 is an explanatory diagram of an operation of collecting performance information according to the embodiment corresponding to claims 1 to 3;

FIG. 9 is a configuration diagram of a conventional multiplex radio monitoring and control system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 master station device 2 slave station device including relay station 3 wireless line 4 host monitoring system 11, 21 storage means 12, 22 wireless device 13, 23 collection means 14 collection transmission means 24 transmission means 30, 50 terminal station 40 intermediate relay station 31 All-station monitoring control unit 31b All-station performance information collection processing unit 60a, 60b Carrier terminal 70 Upper monitoring system a Wireless terminal b Wireless transmitter / receiver b-1 Modulator / demodulator b-2 Transmitter / receiver b-3 AMP unit b-5 Performance information Receiving unit b-51 Communication processing unit c Line switching unit d Own station monitoring control unit d-2 Own station performance information collection processing unit d-21 Logical processing unit d-22, d-23 Communication processing unit d-24 Storage unit e DSC interface

Claims (3)

[Claims] 1. In a wireless communication system in which a number of slave stations including a master station and a relay station are connected via a wireless line, the slave stations including the master station and the relay station each include a storage unit. And a collection unit that constantly collects performance information of the wireless device of the own station and stores the performance information in the storage unit together with time information, and a large number of slave station devices including the relay station each receive a request from the master station device. A performance information monitoring method for a wireless device, further comprising a transmission unit that reads out the corresponding performance information with time information from the storage unit and causes the wireless device to wirelessly transmit the performance information with a specific channel of a wireless line. 2. The performance information monitoring method for a wireless device according to claim 1, wherein the master station device receives time information from its own station or a number of slave stations including the corresponding relay station in response to an external request. A performance information monitoring method for a wireless device, comprising a collection and transmission unit that collects attached performance information and transmits the collected performance information to a request source. 3. A monitoring system in which a higher-level monitoring system monitors a wireless communication system to which a number of slave station devices including a master station device and a relay station according to claim 1 and 2 are connected via a wireless line. The performance information monitoring method for wireless devices, characterized in that the higher-level monitoring system includes means for requesting the master station device to transmit performance information by designating a station and time.