KR20090110499A - Wireless communication repeater and method of informing equipment thereof - Google Patents

Abstract

PURPOSE: A wireless communication repeater and a method of guiding installation of the repeater are provided to inform guide for state management and trouble management, thereby realizing smooth maintenance and operation. CONSTITUTION: A wireless communication repeater repeats a forward signal and a reverse signal between a network base station and a mobile station. The wireless communication repeater includes the first antenna(240), the second antenna and a repeater main body. The first antenna is installed outdoor. The second antenna is installed indoor.

Description

Wireless communication repeater and its installation guide {WIRELESS COMMUNICATION REPEATER AND METHOD OF INFORMING EQUIPMENT THEREOF}

The present invention relates to wireless communication, and more particularly, to a wireless communication repeater installed indoors and a method for installing the same.

Due to the development of communication technology, various wireless communication services through wireless are provided. In addition, with the development of communication technology, popularization of various wireless communication devices for transmitting and receiving voice information and image information such as voice communication terminals and image communication terminals is rapidly progressing.

Also, in recent years, as the number of subscribers of the wireless communication service increases, the number of base stations has increased significantly for smooth operation of the service.

However, since the environment of the wireless communication service is very unstable, it is true that there are relatively shaded areas that are blocked from the outside, such as inside buildings or subways, where radio waves cannot reach.

In such a shaded area, the reception strength is weak, and thus, the call is momentarily disconnected or the communication is unstable, so that high quality wireless communication service is not smoothly performed.

The success of wireless service providers is determined by removing shadow areas more effectively and at lower cost.

On the other hand, the most efficient way to remove the shadow area is to use a repeater that can relay the signal between the network and the user.

Conventional service providers have maximized service by placing various types of repeaters in areas that are considered to be shadowed areas.

However, due to the increase of these repeaters, the noise introduced in the reverse direction also increases relatively, and the problem that oscillation occurs due to the installation site, environment, or installation failure of the repeaters has been addressed.

In particular, the oscillation acts as a noise to the signal, causing an increase in load and a decrease in signal quality.

Therefore, there is a demand for a method for detecting an oscillation phenomenon and removing and blocking an oscillation more effectively.

In addition, when a user wants to install a repeater, the installation is generally performed in a state in which the characteristics of the repeater product and the installation technique are not accurately understood, and a poor installation thereof acts as the biggest factor causing the oscillation phenomenon. There is an urgent need for countermeasures.

Disclosure of Invention It is an object of the present invention to provide a wireless communication repeater and a method for installing the same, which allow the general public to conveniently and easily install a repeater provided for smooth wireless communication service in an indoor shadow area.

It is still another object of the present invention to provide a wireless communication repeater and an installation guide method for informing the voice of an accurate installation guide according to the characteristics of a repeater product to facilitate installation of an indoor repeater.

Features of the wireless communication repeater for relaying forward and reverse signals between the network base station and the mobile station according to the present invention for achieving the above object, the first antenna installed outdoors and the second antenna installed indoors; A repeater circuit for performing signal processing necessary for relaying the forward signal and the reverse signal transmitted and received through the first antenna and the second antenna, and installation of a wireless communication repeater with the first antenna while controlling the operation of the repeater circuit It is composed of a repeater body including a control unit for sequentially outputting the related guidance message according to the state of the wireless communication repeater.

The indoor installation guide method of the wireless communication repeater for relaying the signal between the network base station and the mobile station through the forward path and the reverse path according to the present invention for achieving the above object, the external antenna of the outdoor and the wireless communication repeater Sequentially outputting a first message for guiding the installation position and direction of the main body, and a second message for guiding the installation of the connection between the external antenna and the main body; Checking a signal power level in the forward path; Outputting a third message for guiding an installation direction of the external antenna and checking a connection state between the external antenna and the main body when the checked signal power level is lower than a predetermined level; Checking whether oscillation has occurred on the reverse path; Outputting a fourth message guiding a change in the installation direction of the external antenna and the installation position of the main body when oscillation occurs on the reverse path.

The present invention has a remarkable effect that the wireless communication repeater can be easily and directly installed by the general public by informing each user of an accurate installation guide according to the characteristics of the repeater product to facilitate the installation of the indoor wireless communication repeater. .

The present invention also provides guidance on the status management and troubleshooting of the wireless communication repeater has an excellent effect that the maintenance and operation of the wireless communication repeater is much easier.

The present invention provides an indication of whether or not oscillation occurs during normal operation of the wireless communication repeater and also provides an action guide for removing the oscillation, and thus, there is an advantage in that it can more efficiently cope with maintenance and operation of the wireless communication repeater.

Various objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, By the technical spirit of the present invention described above and its core configuration and operation is not limited.

1 is a block diagram illustrating a general wireless communication relay system.

In the present invention, the wireless communication relay system may include a base station 10 and an indoor wireless communication repeater 12 of the communication network according to the traffic density for the expansion of the service area.

The network base station 10 is installed at an optimal location that satisfies the quality of service required by the wireless communication network for the mobile station 11 which is a subscriber station distributed in the service area in a high traffic density area.

In addition, the wireless communication repeater 12 is an ultra-small repeater installed in an area where the density of subscribers is relatively small, so as to economically expand service coverage.

The wireless communication repeater 12 may extend service coverage by applying a wireless device or an optical transmission device that transmits and receives a radio signal from the network base station 10 to the service area.

Thus, it is installed in various areas, such as apartment towns, buildings, basement floors of buildings, subways, farming and fishing villages, and mountainous areas where subscriber density is low and radio signals are difficult to reach from the ground base station 10.

In other words, various types of communication service coverage such as Code Division Multiple Access (CDMA), Personal Communication Services (PCS), Wideband CDMA (WCDMA), WiBro, and Digital Multimedia Broadcasting (DMB) can be economically expanded. Wireless communication repeaters are used.

The wireless communication repeater 12 of the present invention relays a radio signal between a network base station 10 providing a communication service and a mobile station 11 provided with the communication service. That is, the wireless communication repeater 12 relays a signal (hereinafter, a forward signal) from the network base station 10 to the mobile station 11, and a signal (hereinafter, referred to as a reverse signal) from the mobile station 11 to the network base station 10. Relay).

The wireless communication repeater 12 includes a first antenna 13 for transmitting and receiving wireless signals between itself and the network base station 10 and a second antenna 14 for transmitting and receiving wireless signals between the mobile station 11 and the mobile station 11. The first antenna 13 faces the network base station 10 and the second antenna 14 faces the mobile station 11.

The first antenna 13 receives a forward signal from the network base station 10. Then, the wireless communication repeater 12 amplifies the forward signal received by the first antenna 13 and transmits the wireless signal to the mobile station 11 through the second antenna 14.

The first antenna 13 also receives a forward signal from the mobile station 11. Then, the wireless communication repeater 12 amplifies the reverse signal received by the second antenna 14 and transmits the wireless signal to the network base station 10 through the first antenna 13.

2 is a block diagram showing the configuration of a wireless communication repeater according to the present invention.

2, a wireless communication repeater according to the present invention includes a repeater circuit for relaying forward and reverse signals between a network base station and a mobile station. Here, the repeater circuit is preferably shielded by a housing, and the housing is preferably electrically grounded.

In addition, the wireless communication repeater is attached to the transmitting and receiving antennas (200, 240) for transmitting and receiving wireless signals in both directions. One of the antennas 200 and 240 is an external antenna 200 facing the network base station so as to receive a radio signal transmitted from the network base station in a relatively good radio wave environment, and the other is received through the external antenna 200. An internal antenna 240 facing the mobile station for transmitting the radio signal to the mobile station after signal processing such as amplification or the like. In particular, the external antenna 200 is installed outdoors and the internal antenna 240 is preferably installed indoors.

The repeater circuit performs the basic signal processing required for signal relay such as frequency conversion and amplification of forward or reverse signals. That is, the repeater circuit performs signal processing such as frequency conversion and amplification on signals received from either the network base station or the mobile station while the forward signal is relayed from the network base station to the mobile station or the reverse signal is relayed from the mobile station to the network base station. Perform

For the signal processing described above, the repeater circuit includes a first duplexer 210, a forward signal processor 220, a second duplexer 230, and a reverse signal processor 250.

The forward signal processor 220, which processes a signal on a signal path from a network base station to a mobile station, that is, on a forward path, amplifies, filters, and frequency-converts a radio signal received through the first duplexer 210 to perform a second duplexer 230. And internal antenna 240 to the mobile station.

The reverse signal processor 250, which processes a signal on the signal path from the mobile station to the network base station, that is, on the reverse path, amplifies, filters, and frequency-converts a radio signal received through the second duplexer 230, thereby performing a first duplexer 210. ) And the external antenna 200 to the network base station.

The forward signal processor 220 or the reverse signal processor 250 may include a low noise amplifier for signal amplification, a band pass filter for removing unnecessary signal components by filtering a wireless signal, and a power amplifier for amplifying a signal from which unnecessary signal components have been removed. And a mixer for mixing and converting the reference frequency components output from the local oscillator 270 to the radio signals for frequency conversion.

In particular, the mixer provided in the forward signal processor 220 performs downlink frequency processing to lower the frequency of the forward signal, and the mixer provided in the reverse signal processor 250 performs uplink frequency processing to increase the frequency of the reverse signal.

On the other hand, the wireless communication repeater according to the present invention also includes the configuration shown in FIG.

Figure 3 is a block diagram showing the configuration of a wireless communication repeater supporting the repeater installation guide according to the present invention.

Referring to FIG. 3, the wireless communication repeater includes a controller 300, an output detector 310, a decoder 320, an amplifier 330, an output 340, a display 350, and a memory 360. ) And a function key 370.

The controller 300 controls the operations of the forward signal processor 220, the reverse signal processor 250, and the local oscillator 270 of FIG. 2, while the output detector 310 and the decoder are listed. An operation related to the operation unit 320, the amplifier 330, the output unit 340, the display unit 350, the memory 360, and the function key 370 is controlled.

Meanwhile, as an example, the forward signal processor 220, the reverse signal processor 250, and the local oscillator 270 may be provided in the controller 300 in one module form.

That is, one repeater control module including the forward signal processor 220, the reverse signal processor 250, and the local oscillator 270 may be implemented as the controller 200, and the output detector 310 listed above is provided. The decoder 320, the amplifier 330, the output unit 340, the display unit 350, the memory 360, and the function key 370 may be additionally provided to guide the installation of the repeater.

The output detector 310 detects the bidirectional output of the wireless communication repeater installed indoors. The output detection unit 310 provides the detected result to the control unit 300 as an analog signal.

The control unit 300 of the wireless communication repeater performs a control operation to remove the oscillation or maintain the oscillation margin from the signal input to the mixer for frequency conversion, depending on whether the oscillation occurs. To this end, the controller 300 outputs an RF control signal.

If the level value of the frequency band of the detected signal is greater than or equal to the threshold level, the controller 300 determines whether the oscillation has occurred.

If oscillation occurs, an RF control signal for adjusting the attenuation value by a predetermined attenuation adjustment range is output for the oscillation removal. In particular, the wireless communication repeater may be provided with an attenuator (not shown) for adjusting the attenuation value in front of the mixer, the attenuation value is adjusted by the RF control signal output from the controller 300.

The decoder 320 decodes the guide message provided from the controller 300. As an example, the decoder 320 may be a voice decoding chip for decoding the voice guidance message provided from the controller 300.

However, in the present invention, not only the guidance message is limited to the voice but also the text or the image can be expanded and applied. Accordingly, the decoder 320 may be a decoding chip for decoding the video and the voice.

The amplifier 330 amplifies the output of the decoder 320 by the required level. If the output of the decoder 320 is an audio signal, the amplifier 330 performs audio amplification. If the output of the decoder 320 is an image signal, the amplifier 330 performs video and audio amplification. do.

However, if the data output from the decoder 320 is not required to amplify, i.e., text as an example, the amplifying unit 330 bypasses.

The output unit 340 is a device for outputting the output of the amplifier 330 in various forms. The output unit 340 may include a speaker or a monitor, and the output unit 340 outputs a voice guide message through the speaker when the audio signal is output from the amplifier 330, while the amplifier 330 outputs the voice guide message. When a video signal or plain text is output, a video or text guide message is output through the monitor.

Meanwhile, the memory 360 stores various guide messages, and the controller 300 reads out necessary guide messages from the memory 360 according to various situations and outputs them to the decoder 320.

The memory 360 also stores various parameters required for the wireless repeater to operate. The parameter is an initial setting value required for the operation of the wireless repeater.

The display unit 350 is for displaying an operation state of the wireless communication repeater as a light emitting element. For example, the light emitting diode (LED) is preferable.

The wireless communication repeater includes a function key 370 as an input interface for supporting a user's operation. Through the function key 370, the user controls the internal operation of the wireless communication repeater.

Next, the installation guide procedure of the wireless communication repeater will be described based on the configuration of FIG. 3.

Hereinafter, only an example of outputting the installation guide as a voice will be described. However, as described above, the installation guide may be output through the monitor as an image.

The wireless communication repeater according to the present invention described above is composed of an external antenna 200 installed outdoors, an internal antenna 240 installed indoors, and a repeater body including the components of FIGS. 2 and 3. do.

4 is a flowchart illustrating an installation guide procedure of the wireless communication repeater according to the present invention.

Referring to FIG. 4, when the power of the wireless communication repeater is turned on (S10), the forward path and the reverse path, which are signal transmission paths of the repeater circuit, are turned off according to an initial setting value stored in the memory 360. (S20).

Subsequently, a voice information is outputted to guide whether to execute the installation guide of the wireless communication repeater (S30). The controller 300 reads a guide message for inquiring whether to execute the installation guide and provides the guide 320 to the decoder 320. Accordingly, the voice guide is output through the speaker of the output unit 340.

After the voice is output, the controller 300 checks whether a confirmation key is input among the function keys 370 corresponding to the input interface (S40).

For example, a guide message asking whether to execute the installation guide above may be "Hello. This guides the installation process of the repeater from now on. To operate immediately without listening to the installation guide, press the confirmation key for more than 3 seconds."

The controller 300 operates the internal timer after the voice output, and if there is no input of the confirmation key until the timer expires, the controller 300 sequentially starts the installation guide of the wireless communication repeater (S50). On the other hand, if there is an input of the confirmation key before the timer expires, the controller 300 ends the installation guide of the wireless communication repeater.

As the installation guide starts, the control unit 300 outputs the first guide message for guiding the installation location and direction of the external antenna and the installation location of the repeater body (S60). For example, the controller 300 outputs a guide message for installation of an external antenna and installation of a repeater body. He is as follows. "Attach the external antenna to the window with the adsorption plate facing outwards, and install the repeater body in a suitable place in the room more than 5 meters away, and press the confirm key when the installation is completed."

The controller 300 checks whether or not a confirmation key is input among the function keys 370 corresponding to the input interface after outputting the first guide message (S70).

The controller 300 operates the internal timer after outputting the first guide message, and if there is an input of the confirmation key before the timer expires, the controller 300 outputs a second guide message of the next order (S80). On the other hand, if there is no input of the confirmation key until the timer expires, the controller 300 repeats the output of the first guide message.

The controller 300 outputs a guide message for connection installation between the external antenna and the repeater main body as a second guide message. For example, as a second guide message, "Connect the cable from the external antenna to the repeater body. Press the OK key when the connection is complete."

The control unit 300 checks whether the confirmation key is input among the function keys 370 corresponding to the input interface after outputting the second guide message (S90).

The controller 300 operates the internal timer after outputting the second guide message, and if there is an input of the confirmation key before the timer expires, the controller 300 turns on the forward path in the off state and checks the signal power of the forward path (S100). S110).

However, if there is no input of the confirmation key until the timer expires, the controller 300 repeats the output of the second guide message.

The output detector 310 transmits the detection result of the signal power of the forward path to the controller 300. Accordingly, as a result of checking the signal power of the forward path, the controller 300 checks whether the signal power level of the forward path satisfies the communication relay without error. For example, the controller 300 checks whether the signal power level of the forward path is higher or lower than -50 dBm (S120).

If the signal power level of the forward path is lower than -50 dBm, the controller 300 outputs a third guide message requesting confirmation of the current installation status and the connection status between the external antenna and the external antenna and the repeater. (S130). As an example, the third guide message is "The level of the input signal from the outside is too small. Please check the direction of the external antenna and the cable connection of the external antenna again, and if it is ok, press the confirm key."

On the other hand, in the above, if the signal power level of the forward path is higher than -50dBm, the controller 300 skips the output of the third guide message.

The controller 300 operates the internal timer after outputting the third guide message, and if there is an input of the confirmation key before the timer expires, the controller 300 turns off the forward path again and checks whether the reverse path is oscillated (S140, S150).

However, if there is no input of the confirmation key until the timer expires, the controller 300 repeats the output of the third guide message.

If there is no oscillation in the reverse path, the controller 300 outputs a fourth message informing of the end of installation (S160). As an example, the fourth message is "The installation of the wireless repeater is complete. Thank you."

On the other hand, if oscillation occurs in the reverse path, the controller 300 outputs a fifth message guiding an operation for removing the oscillation (S170). As an example, the fifth message is "The distance between the external antenna and the wireless repeater is too short or facing each other. Please change the direction of the external antenna or the position of the wireless repeater. Please press the key. "

The controller 300 operates the internal timer after outputting the fifth guide message, and if there is an input of the confirmation key before the timer expires, the controller 300 checks again whether the reverse path is oscillated in the off state of the forward path (S180). S150).

However, if there is no input of the confirmation key until the timer expires, the controller 300 repeats the output of the fifth guide message.

As the control unit 300 of the wireless communication repeater according to the present invention is completed through the above procedure, all the functions of the wireless communication repeater are turned on to operate the communication relay function normally.

On the other hand, the control unit 300 of the wireless communication repeater according to the present invention checks whether the oscillation even during normal operation as described above.

If the controller 300 checks that a complete oscillation has occurred through the oscillation algorithm, the controller 300 outputs a message for guiding an operation for removing the oscillation as described above with the fifth guide message.

If there is an input of the confirmation key by checking whether or not the confirmation key is input, the operation guide for removing the oscillation is repeated while checking whether or not the oscillation key is input again.

As described above, the controller 300 sequentially processes the guide message stored in the memory 360 according to the state of the repeater such as whether the input is performed through the function key 370 which is an input interface and whether the signal power level or oscillation occurs. Read it out and print it out.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

1 is a block diagram showing a general wireless communication relay system.

Figure 2 is a block diagram showing the configuration of a wireless communication repeater according to the present invention.

Figure 3 is a block diagram showing the configuration of a wireless communication repeater supporting the repeater installation guide according to the present invention.

Figure 4 is a flow chart showing the installation guide procedure of the wireless communication repeater according to the present invention.

       Explanation of symbols on drawing symbols

10: base station 11: mobile station

12: wireless communication repeater 200: external antenna

210: first duplexer 220: forward signal processor

230: second duplexer 240: internal antenna

250: reverse signal processor 270: local oscillator

300: control unit 310: output detection unit

320: decoder 330: amplifier

340 output unit 350 display unit

360: Memory 370: Function Keys

Claims (12)

In the wireless communication repeater for relaying the forward and reverse signals between the network base station and the mobile station, A first antenna installed outdoors and a second antenna installed indoors; A repeater circuit for performing signal processing necessary for relaying the forward signal and the reverse signal transmitted and received through the first antenna and the second antenna, and controlling the operation of the repeater circuit, Wireless communication repeater comprising a repeater main body including a control unit for sequentially outputting the installation-related guide message according to the state of the wireless communication repeater. The method of claim 1, The repeater body, A memory for storing an initial setting value for the operation of the guidance message and the repeater circuit; A decoder which receives and receives the guide message stored in the memory from the controller; An amplifier for amplifying the output of the decoder; And an output unit for outputting an output of the amplification unit. The method of claim 2, The guide message includes an audio or video, and the output unit includes a speaker and a monitor. The method of claim 1, The control unit, And a message for guiding the installation position and direction of the first antenna and the repeater main body, and a message for guiding the connection installation between the first antenna and the repeater main body in sequence. The method of claim 1, The control unit, According to a result of checking the power level of the forward signal in the repeater circuit, a message for instructing to confirm the installation direction of the first antenna and the connection state between the first antenna and the repeater main body is outputted. Wireless repeater. The method of claim 5, wherein The repeater body, And an output sensing unit for sensing a power level of the forward signal. The method of claim 1, The control unit, And a message for instructing the repeater circuit to change the installation direction of the first antenna and the installation position of the repeater body according to a result of checking whether oscillation occurs on a reverse path. The method of claim 1, The control unit, Wireless communication, characterized in that for outputting a message for instructing to change the installation direction of the first antenna and the installation position of the repeater main body according to the result of checking whether the oscillation in the repeater circuit during the operation of the wireless communication repeater Repeater. In the indoor installation guidance method of the wireless communication repeater for relaying signals between the network base station and the mobile station through the forward path and the reverse path, Sequentially outputting a first message guiding an installation position and a direction of an external antenna installed in the outdoors and the main body of the wireless communication repeater, and a second message guiding connection installation between the external antenna and the main body; Checking a signal power level in the forward path; Outputting a third message for guiding an installation direction of the external antenna and checking a connection state between the external antenna and the main body when the checked signal power level is lower than a predetermined level; Checking whether oscillation has occurred on the reverse path; And outputting a fourth message for guiding a change in the installation direction of the external antenna and the installation position of the main body when oscillation occurs in the reverse path. The method of claim 9, And turning off the forward path and the reverse path before sequentially outputting the first message and the second message. The method of claim 9, And installing the forward path when the signal power level is checked. The method of claim 9, And when the oscillation is generated, turning off the forward path.

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