KR20070100577A - Apparatus for monitoring environments of base station and base station transceiver system including such an apparatus - Google Patents

Abstract

An apparatus for monitoring environment of a BS(Base Station) and a BS transceiving system including the same are provided to enable an operator to check an abnormal state of equipments in the BS or an environmental change without an annoying or inconvenient procedure, to prevent a possible accident via strengthening of monitoring the environmental change in the BS and to operate the BS more stably. A BS(Base Station) transceiving system including an apparatus for monitoring environment of the BS comprises a digital processor(110), a wireless processor(120) and an environmental monitoring apparatus(130). The digital processor(110), connected to a BS controller and the wireless processor(120), modulates baseband signals received from the BS controller, and demodulates IF(Intermediate Frequency) signals, received from the wireless processor(120), into packet signals needed for the BS controller. The wireless processor(120) performs a wireless connection between the digital processor(110) and a mobile terminal via an uplink and a downlink. The environmental monitoring apparatus(130) includes a comparator, and an optical signal outputting unit. The comparator compares a value, resulted from monitoring of an environmental change of the BS transceiving system, with a reference. The optical signal outputting unit outputs an optical signal in accordance with a comparison result and enables an operator to visually recognize the outputted optical signal by being adhered to an external panel of the BS transceiving system.

Description

Apparatus for Monitoring Environments of Base Station and Base Station Transceiver System Including Such an Apparatus}

1 is a block diagram showing the overall configuration of a mobile communication network in which the base station environment monitoring apparatus of the present invention can be implemented.

Figure 2 is a block diagram showing the configuration of a base station transmission and reception system including a base station environment monitoring apparatus of the present invention.

Figure 3 is a block diagram of an environmental monitoring apparatus according to an embodiment of the present invention.

Figure 4 is a block diagram of a base station transmission and reception system including an environment monitoring apparatus according to an embodiment of the present invention.

5 is an external block diagram of an environment monitoring apparatus according to an embodiment of the present invention.

6 is a circuit diagram of an environmental monitoring apparatus according to an embodiment of the present invention.

7 is a connection diagram of environmental sensing signal lines that can be used in the environmental monitoring apparatus of the present invention.

The present invention relates to a mobile communication technology, and more particularly, to an apparatus for monitoring an environment of a base station and a base station transmission and reception system including such a device.

In a mobile communication system, a base station is the most essential configuration, and in order to improve the quality of communication service, it is necessary to install a base station in various regions. Since the base station is installed indoors but also outdoors, the base station is exposed to various environmental changes, and it is essential to prevent accidents or disasters that can be quickly sensed and take appropriate measures.

Currently, the base station has a function of detecting the environmental change of the base station itself and remotely notifying it. In case of receiving such notification, the operator should visit the base station and take necessary measures.In addition, the operator who has actually visited the base station should be fully aware of the facts that the base station has notified remotely. It is difficult for the operator to see only the base station equipment in the field, and it is difficult to know what kind of failure or problem has occurred, and it is cumbersome to contact another person in the distance to know this.

An object of the present invention is to provide a base station environment monitoring apparatus that allows the operator to immediately check the environmental change of the base station in the field.

Another object of the present invention is to quickly understand the environmental changes of the base station to quickly solve the failure or problem of the base station to improve the stable operation of the base station.

The base station environment monitoring apparatus according to the present invention is installed in a base station transmission / reception system including a digital processing unit and a wireless processing unit, and a comparison unit for comparing the detected value of the environment change of the base station transmission and reception system with a predetermined reference value, and a comparison result of the comparison unit. And an optical signal output unit for outputting an optical signal and attaching to an external panel of the base station transmission / reception system so as to be visually recognized by an operator. The digital processing unit is connected to the base station controller and the wireless processing unit to modulate the baseband signal received from the base station controller, and demodulates the intermediate frequency signal received from the wireless processing unit into a packet signal required for the base station controller. The wireless processing unit performs a wireless connection through the forward and reverse links between the digital processing unit and the mobile terminal.

According to one embodiment of the present invention, the base station environment monitoring apparatus includes a plurality of sensors for detecting an environment change of the base station transmission and reception system, the comparator compares the value detected by the plurality of sensors with a predetermined reference value. In addition, the digital processing unit of the base station transceiver system including the base station environment monitoring device, the generation and distribution of the system clock, the generation and distribution of the network synchronization clock, the control and maintenance of the hardware and software management, monitoring and alarm processing in the base station And a base station environment monitoring device is electrically connected to the control / maintenance block and uses the operating power of the control / maintenance block as it is.

Embodiment

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram showing the overall configuration of a mobile communication network implemented with a base station environment monitoring apparatus of the present invention.

1 is an example of a Code Divisional Multiple Access (CDMA) communication network, and includes an access network providing a wireless interface to a core network 20 and a mobile communication terminal 50 connected to a public switched telephone network (PSTN) 10. 30, an access network, and a data core network 40 for providing a packet data communication service to the mobile communication terminal 50. The core network 20 is composed of a mobile switching center 22 (MSC: Mobile Switching Center) and a home location register (24, HLR: Home Location Register), and the access network 30 includes a mobile communication terminal 50 and wireless data and Base station transceiver system (32, BTS) for transmitting and receiving signal data, base station controller (34, BSC: base station) for performing call processing, controlling base station transceiver system 32, and providing an interface to a core network Controller).

The base station transmission / reception system 32 transmits data and signal data received from the mobile communication terminal 50 to the mobile communication terminal 50 through the base station controller 34. In order to perform the role of the wireless transceiver, the base station transmission / reception system 32 performs functions such as radio resource management, RF scheduling, and power control, and includes a transmission / reception antenna 33 for each sector.

According to one embodiment of the present invention, the base station transmission and reception system 32 may be configured as shown in FIG.

As shown in FIG. 2, the base station transmission / reception system 32 includes a digital processing unit 110 (Du: Digital Unit), a wireless processing unit 120 (RFU: Radio Frequency Unit), and the environment monitoring device 130 of the present invention.

The digital processing unit 110 is connected to the base station controller 34 and the wireless processing unit 120. The digital processing unit 110 demodulates the intermediate frequency received signal down-converted by the wireless processing unit 120 to convert the packet into a packet form required by the base station controller 34. Transfer to base station controller 34. In addition, the digital processor 110 performs CDMA modulation on the baseband signal received from the base station controller 34 and transmits the baseband signal to the wireless processor 120.

The wireless processing unit 120 is a part of the base station system, which performs wireless access through the forward and reverse links between the digital processing unit 110 and the CDMA mobile terminal, and assigns the CMDA PCS frequency and converts the intermediate frequency to the PCS forward frequency. The PCS reverse frequency down to intermediate frequency, power management, and forward power maintenance.

The environmental monitoring apparatus 130 monitors the operating environment of the base station transmission and reception system 32 and outputs the result as an optical signal, thereby allowing the operator to visually check the state of the base station transmission and reception system 32. The operating environment of the base station transmission / reception system 32 monitored by the environmental monitoring device 130 includes (1) commercial power failure, (2) rectifier DC output failure, (3) rectifier module failure, and (4) battery over discharge. , (5) DC booster fault, (6) Air conditioner abnormality, (7) Air conditioner indoor or outdoor fault, (8) High temperature alarm, (9) Low temperature alarm, (10) Low humidity, (11 ) High Humidity, (12) Door Opening, (13) Immersion Alarm, (14) Smoke Detection Alarm, (15) Heat Detection Alarm, (16) Gas Release Alarm, (17) DC / DC Converter Abnormality, (18) Emergency power operation alarm. For example, the operating temperature range of the base station transmit / receive system 32 is 0 ° C to + 50 ° C, and the humidity range is 10% to 90%. For the environment outside of this range, the environmental monitoring device 130 receives an optical signal. Output It will be readily understood by those skilled in the art that the environmental monitoring performed by the environmental monitoring apparatus 130 of the present invention is not limited thereto.

The environmental monitoring apparatus 130 receives a monitoring signal for board departure or hardware abnormality in the base station transceiver system equipment in addition to the operating environment described above (for example, receiving an alarm signal from the CSAA-A of FIG. 4) and an optical signal. You can also output Meanwhile, the environmental monitoring device 130 may also output an audible signal in addition to the optical signal to generate an alarm sound.

Although not shown in FIG. 2, the environmental monitoring apparatus 130 may include a separate power supply means. However, rather than configuring a separate power supply means, it is preferable to use the internal power supply of the base station transceiver system 130 as it is. For example, the power supply used by CSAA-A in FIG. 4 is supplied to the environmental monitoring device 130, and the power supply can be used by the environmental monitoring device 130.

3 is a block diagram of an environment monitoring apparatus 130 according to an embodiment of the present invention.

Referring to FIG. 3, the environmental monitoring apparatus 130 of the present invention includes a sensor 132, a comparison unit 134, an optical signal output unit 136, and an audible signal output unit 138. The sensor 132 refers to a sensor that detects an environmental monitoring item from above. The comparison unit 134 compares the environmental monitoring value detected by the sensor 132 with a predetermined reference value, and when the environmental monitoring value exceeds the reference value, the optical signal output unit 136 (eg, a light emitting diode (LED)). Light Emitting Diode) and the audible signal output unit 138 (e.g., buzzer) are operated.

An example of a specific configuration in which the environmental monitoring device 130 of the present invention is installed in the base station transmission / reception system 32 will be described with reference to FIG. 4.

4 is a block diagram of a base station transmission and reception system 32 to which the environmental monitoring apparatus of the present invention can be applied.

As shown in FIG. 4, the base station transmit / receive system 32 includes an antenna front end block (127, AFEB: antenna front end block) consisting of a duplex, an LNA, and a power divider, and a high power amplifier comprising a module for high power amplification of a transmitted RF signal. 124, HPAB (High Power Amplifier Block), transmit / receive power combiner 125 (COMB combiner block), which is a power synthesizer block for synthesizing respective carriers and transmitting them to the transmit front end, and channel band filter block 126 (CBFB: channel band pass). Filter block), a transceiver block (126, XCVB: Transceiver Block) that plays a role in converting between a high frequency signal and an intermediate frequency signal, measuring the strength of an RF received signal, and adjusting a power attenuator for a forward link / reverse link. Base station tester (122, BSTB: Base) is a function block for testing, diagnosing and monitoring the normal operation of the base station system without additional measurement equipment. Station Test Block), a CDMA Modulation & Demodulation Block (CMDB) 112 that converts analog intermediate frequency signals into I-channel and Q-channel components, or converts baseband signals into intermediate frequency signals. Control / maintenance block (114, BCMB: BTS Control) for generating and distributing system clocks received from satellites, generating and distributing network synchronization clocks, managing hardware and software in base stations, and monitoring and processing alarms. & Maintenance Block), a communication interface block 116 (BCIN: BTS Communication Interface) that provides an interface between the base station transmit / receive system 32 and the base station controller 34 and provides a connection function for units inside the base station transmit / receive system 32. Network).

The CMDB 112, BCMB 114, and BCIN 116 of FIG. 4 constitute the digital processing unit 110 of FIG. 2, and the BSTB 122, XCVB 123, HPAB 124, and COMB (FIG. 4) of FIG. 125, the CBFB 126, and the AFEB 127 constitute the wireless processor 120 of FIG. 2.

As shown in FIG. 4, according to one embodiment of the present invention, the environment monitoring apparatus 130 is connected to a control / maintenance block 114 (BCMB) constituting the digital processing unit 110 of the base station transmission / reception system 32. The control / maintenance block 114 (BCMB) includes CSAA-A, SCPA-A, and a plurality of RACA-As.

In the control / maintenance block 114 (BCMB), the Subsystem Control Processor Assembly (SCPA-A) interfaces to enable communication between the mobile terminal and the base station, manages all software and hardware within the base station transmit / receive system 32 and handles call processing. In preparation, the device restores the devices in the cell to an operational state. SCPA-A also manages configuration management and management of each CDMA channel. In the control / maintenance block (114, BCMB), the Cell Site Alarm Assembly (CSAA-A) provides an interface to monitor and report on hardware and overall conditions such as temperature and board departures in the base station transceiver system 32. In connection with SCPA-A, alarm information is transmitted to communication interface block 116 (BCIN). An RF Alarm and Control Board Assembly (RCAA-A) is a connection board that transmits and receives an alarm and control signal of the high power amplifier 124 (HPAB) with the main control unit SCPA-A and is connected through the main control unit and the TD bus.

In the example of FIG. 4, the environmental monitoring device 130A is configured to receive the detection signal SIG from an external sensor. That is, the environmental monitoring device 130 of FIG. 3 includes a sensor 132 for detecting an environmental change of the base station transmission / reception system 32 and compares the signal detected by the sensor 132 with a reference value in the comparator 134. 4 is configured to receive a detection signal from an external sensor (not shown) without comparing a sensor and compare it with a reference value in the comparison unit 134. . The external sensor in this case is a sensor used by other components of the base station transmit / receive system 32, such as the base station tester 125 (COMB) and / or the control / maintenance block 114 (BCMB). Even when the base station environment monitoring apparatus 130A is implemented as shown in FIG. 4, the apparatus 130A may be connected to the digital processing unit 110 and the wireless processing unit 120 of the base station transmitting and receiving system 32 as shown in FIG. 2.

The external appearance of the environmental monitoring apparatus 130, 130A of the present invention can be configured as shown in FIG.

As shown in FIG. 5, the environmental monitoring devices 130 and 130A have 20 light emitting diodes arranged in two rows on one side of the panel, and the sensing signal processing chip 139 is disposed above the panel. The external environmental monitoring devices 130 and 130A may be attached to the base station transceiving system 32, but may be attached to any component of the system 32, but it may be attached to a position easily visible to the operator.

6 is a circuit diagram of an environmental monitoring apparatus according to an embodiment of the present invention, Figure 7 is a connection diagram of the environmental sensing signal line that can be used in the environmental monitoring apparatus of the present invention.

6 and 7, the environmental monitoring apparatus 130A receives a sensing signal of a sensor through two sensing signal terminals 133A and 133B, and transmits the sensing signal to the first comparator 134A through a resistor R1. The resistor R2 is transferred to the second comparator 134B. The output of the first comparator 134A is transmitted to the optical signal output unit 136 (LED) connected to the power supply VCC through the resistor R3, and the output of the second comparator 134B is the audible signal output unit 138. Is delivered to.

The sense signal processing chip 139 includes an output terminal connected to each of the 20 pairs of the sense signal terminals 133A and 133B as shown in FIG. 7.

Although specific embodiments of the present invention have been described with reference to the drawings, this is intended to be easily understood by those skilled in the art and is not intended to limit the technical scope of the present invention. Therefore, the technical scope of the present invention is determined by the matters described in the claims, and the embodiments described with reference to the drawings may be modified or modified as much as possible within the technical spirit and scope of the present invention.

The base station environment monitoring apparatus according to the present invention outputs an optical signal or an optical signal and an audible signal so that an operator can immediately grasp an abnormality or an environmental change of the base station equipment without going through a cumbersome and inconvenient procedure in the field. In addition, it is possible to prevent possible accidents by strengthening the environmental change detection of the base station, it is possible to operate a more stable base station.

In addition, it is not necessary to use a separate power source for driving the base station environment monitoring apparatus, and access to environmental alarm processing is improved and management interest is improved.

Claims (10)

As a base station environment monitoring device, (A) a digital processing unit connected to the base station controller and the wireless processing unit to modulate the baseband signal received from the base station controller, and demodulating the intermediate frequency signal received from the wireless processing unit into a packet signal required for the base station controller, and (B) the digital processing unit; It is installed in the base station transmission and reception system including a wireless processing unit for performing a wireless connection through the forward and reverse links between the mobile terminal, A comparison unit for comparing the detected value of the environment change of the base transceiver station with a predetermined reference value; And a light signal output unit for outputting an optical signal according to the comparison result and attached to an external panel of the base station transmission / reception system so as to be visually recognized by an operator. In claim 1, And a plurality of sensors for detecting an environment change of the base station transmission and reception system, wherein the comparison unit compares the values detected by the plurality of sensors with a predetermined reference value. The method of claim 1 or 2, And audible signal output unit configured to receive an output signal of the comparator and output an audible signal. The method of claim 1 or 2, The items for monitoring the environment of the base station transceiver system include a commercial power supply fault, a rectifier DC output failure, a rectifier module fault, a battery over-discharge, a DC booster fault, a cooler commercial fault, a cooler indoor unit or an outdoor unit fault. At least one of whether the high temperature alarm, low temperature alarm, low humidity, high humidity, door opening and closing, flooding alarm, smoke detection alarm, heat detection alarm, gas emission alarm, DC / DC converter abnormality and emergency power operation alarm. Base station environment monitoring device. In claim 4, The item further includes a base station environment monitoring apparatus, characterized in that whether the hardware constituting the base station transceiver system. In claim 1, And the optical signal output unit includes a light emitting diode. The method of claim 1 or 2, The digital processing unit includes a control / maintenance block for generating and distributing system clocks, generating and distributing network synchronization clocks, managing hardware and software in the base station, and monitoring and generating alarms. Base station environment monitoring apparatus, characterized in that it is electrically connected to the control / maintenance block. In claim 7, A base station environment monitoring apparatus, characterized in that operated by the power supply of the control / maintenance block. A base station transmission and reception system, A digital processing unit connected to the base station controller and the wireless processing unit to modulate the baseband signal received from the base station controller, and demodulating the intermediate frequency signal received from the wireless processing unit into a packet signal necessary for the base station controller; A wireless processor for performing a wireless connection between the digital processor and the mobile terminal through forward and reverse links; A comparator for comparing the detected value of the environment of the base transceiver station with a predetermined reference value, and outputs an optical signal according to the comparison result and is attached to an external panel of the base transceiver station for visual recognition by the operator A base station transmission and reception system comprising an environment monitoring apparatus including an optical signal output unit. In claim 9, The digital processing unit includes a control / maintenance block for generating and distributing system clocks, generating and distributing network synchronization clocks, managing hardware and software in the base station, and monitoring and generating alarms. A base station transmit / receive system electrically connected to the control / maintenance block and using a power source of the control / maintenance block.

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