KR200258389Y1 - Wide band repeater for mobile communication service - Google Patents

Abstract

The present invention relates to a broadband relay system for a mobile communication service, and the present invention is to convert a high frequency signal into a millimeter wave signal which is not used among the authorized signals in a base station link repeater in a mobile communication service such as IMT-2000, PCS, cellular, etc. It transmits to remote repeater in shaded area, and converts millimeter wave signal into high frequency signal at remote repeater and relays it to subscriber station, so that subscribers can service subscriber signal with wide bandwidth of tens of MHz to hundreds of MHz. Not only can it communicate, but if you want to replace the frequency or bandwidth, you can replace it with the desired frequency and bandwidth without having to replace the entire equipment. .

Description

Broadband relay system for mobile communication service {WIDE BAND REPEATER FOR MOBILE COMMUNICATION SERVICE}

The present invention relates to a broadband relay system for a mobile communication service. More specifically, in a mobile communication service such as IMT-2000, PCS, and cellular, a millimeter wave signal in which a high frequency signal is not used among the permitted signals in a base station link repeater The present invention relates to a broadband relay system for a mobile communication service, which converts a radio wave to a remote repeater in a radio-shading area, converts a millimeter wave signal into a high frequency signal, and relays the service to a subscriber station.

As shown in Fig. 1, a terminal subscriber in one base station service area can access another terminal subscriber in a service area of another base station, but the other mobile terminal or its own mobile terminal is out of the base station service area. If it is, the connection is impossible.

It is necessary to install as many base stations as possible in order to remove the service area limitation in the mobile communication network, but repeaters are installed in mountain areas or island areas where the use efficiency is low compared to the base station installation cost.

1 is a block diagram showing a narrowband relay system for a mobile communication service according to the prior art.

As shown in FIG. 1, the conventional narrowband repeater 2 amplifies and retransmits the radio wave received from the subscriber station 4 side or the base station 3 side as it is with only signal strength.

However, the conventional narrowband repeater has a problem that ultra-high speed transmission is impossible due to narrow bandwidth during large-capacity relaying because it converts high frequency into a low frequency band.

In addition, the conventional narrowband repeater has a problem that the entire equipment must be replaced when the operator wants to replace the frequency or bandwidth because the frequency used is fixed by a narrow bandwidth.

Accordingly, an object of the present invention is to solve the above problems, and in the mobile communication services such as IMT-2000, PCS, and cellular, a millimeter wave that does not use a high frequency signal among the permitted signals in a base station link repeater. The present invention provides a broadband relay system for a mobile communication service that converts a signal to a remote repeater in a radio-shading area, converts a millimeter wave signal into a high frequency signal in a remote repeater, and relays the service to a subscriber station.

The object of the present invention is to convert a forward high frequency signal into a forward millimeter wave signal and transmit it through a first millimeter wave antenna, and convert a reverse millimeter wave signal received through the first millimeter wave antenna into a reverse high frequency signal to generate a base station. A repeater for a base station link transmitted to a subscriber station of a mobile communication service through a service antenna or to a subscriber station of another communication service through an exchange station; Converts a forward millimeter wave signal received from the base station link repeater through a second millimeter wave antenna into a forward high frequency signal, and transmits it to a subscriber station in a radio shadow area through a repeater service antenna and a radio shadow area through the repeater service antenna. And converting the reverse high frequency signal received from the subscriber station into a reverse millimeter wave signal and transmitting the reverse high frequency signal to the base station link repeater through the second millimeter wave antenna.

1 is a block diagram showing a narrowband relay system for a mobile communication service according to the prior art;

2 is a block diagram showing a broadband relay system for a mobile communication service according to the present invention.

(Explanation of symbols for the main parts of the drawing)

100: base station link repeater 200: remote repeater

300: terminal of the base station service area 400: terminal of the radio wave shading area

110: base station transceiver 120: first millimeter wave transceiver

130: base station service antenna 140: first millimeter wave antenna

150: first wireless communication unit 160: first failure monitoring unit

170: first antenna direction adjusting unit 210: second millimeter wave transceiver

220: service repeater 230: repeater service antenna

240: second millimeter wave antenna 250: second wireless communication unit

260: second failure monitoring unit 270: second antenna direction adjustment unit

121: first standard frequency oscillator 122: first bandwidth converter

123: first millimeter wave oscillator 124: first millimeter wave transceiver

211: second standard frequency oscillator 212: second bandwidth converter

213: second millimeter wave oscillator 214: second millimeter wave transceiver

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In addition, this embodiment is only illustrative for the purpose of understanding and not intended to limit the present invention.

FIG. 2 is a block diagram illustrating a broadband relay system for a mobile communication service according to the present invention. As shown in FIG. 2, the broadband relay system according to the present invention converts a forward high frequency signal into a forward millimeter wave signal. A subscriber station of a mobile communication service is transmitted through a base station service antenna 130 by converting a reverse millimeter wave signal transmitted through a 1 millimeter wave antenna 140 and a reverse millimeter wave signal received through the first millimeter wave antenna 140 into a reverse high frequency signal. A base station link repeater 100 for transmitting to 300 or for transmitting to a subscriber station of another communication service through the switching center 500; Converts the forward millimeter wave signal received from the base station link repeater 100 through a second millimeter wave antenna 240 into a forward high frequency signal to the subscriber station 400 in the radio shade region through the repeater service antenna 230. Transmitting and converting a reverse high frequency signal received from the subscriber station 400 in the radio shade region through the repeater service antenna 230 into a reverse millimeter wave signal for the base station link through the second millimeter wave antenna 240. It is composed of a remote repeater 200 to transmit to the repeater 100.

Here, the base station link repeater 100 transmits a portion of the forward high frequency signal to the subscriber station 300 in the service area through the base station service antenna 130, and transmits another portion of the forward subscriber signal to the first millimeter wave transceiver. And outputs a reverse high frequency signal received from the first millimeter wave transceiver 120 to the subscriber station 300 of the mobile communication service through the base station service antenna 130 or through the switching center 500. A base station transceiver 110 for transmitting to a subscriber station of another communication service; Converts the forward high frequency signal received from the base station transceiver 110 into a forward millimeter wave signal and transmits it to the remote repeater 200 through the first millimeter wave antenna 140, and transmits the first millimeter wave antenna 140. The first millimeter wave transceiver 120 converts the reverse millimeter wave signal received from the remote repeater 200 into a reverse high frequency signal and outputs the reverse millimeter wave signal to the base station transceiver 110.

Here, the first millimeter wave transceiver 120 includes: a first standard frequency oscillator 121 for oscillating a standard frequency oscillation signal; A first bandwidth converter 122 for receiving a standard frequency oscillation signal oscillated from the first standard frequency oscillator 121 and converting a frequency band; A first millimeter wave oscillator 123 which receives the converted frequency signal from the first bandwidth converter 122 and oscillates a millimeter wave oscillation signal; After combining the forward high frequency signal received from the base station transceiver unit 110 and the millimeter wave oscillation signal received from the first millimeter wave oscillator 123 and converting the forward high frequency signal into a forward millimeter wave signal, the first millimeter wave antenna The first millimeter wave transceiver 124 transmits to the remote repeater 200 through the 140.

In addition, the remote repeater 200 converts the forward millimeter wave signal received from the base station link repeater 100 through the second millimeter wave antenna 240 into a forward high frequency signal and outputs it to the service repeater 220. The second millimeter wave transceiver 210 converts the reverse high frequency signal received from the service relay unit 220 into a reverse millimeter wave signal and transmits the reverse millimeter wave signal to the base station link repeater 100 through the second millimeter wave antenna 240. ); The forward high frequency signal received from the second millimeter wave transceiver 210 is transmitted to the subscriber station 400 in the radio wave shading area through the repeater service antenna 230 and the reverse direction transmitted through the repeater service antenna 230. The service relay unit 220 outputs a high frequency signal to the second millimeter wave transceiver 210.

Here, the second millimeter wave transceiver 210 may include a second standard frequency oscillator 211 for oscillating a standard frequency oscillation signal; A second bandwidth converter 212 which receives a standard frequency oscillation signal oscillated from the second standard frequency oscillator 211 and converts a frequency band; A second millimeter wave oscillator 213 for receiving the converted frequency signal from the second bandwidth converter 212 and oscillating the milliwave oscillation signal; A second millimeter wave antenna after converting the reverse high frequency signal into a reverse millimeter wave signal by synthesizing the reverse high frequency signal received from the service relay unit 220 and the millimeter wave oscillation signal received from the second millimeter wave oscillator 213. And a second millimeter wave transceiver 214 that transmits to the base station link repeater 100 through 240.

The operation and effects of the present invention configured as described above will be described in detail with reference to the direction of the subscriber signal with reference to FIG. 2.

1. Forward (from base station to terminal)

First, the base station transmitter / receiver 110 amplifies a portion of the forward high frequency signal by high power and transmits it to the subscriber station 300 of the mobile communication service through the base station service antenna 130, and transmits and receives the other part of the forward subscriber signal to the first millimeter wave. Output to the unit 120.

Accordingly, the first millimeter wave transceiver 120 converts the forward high frequency signal received from the base station transceiver 110 into a forward millimeter wave signal to the remote repeater 200 through the first millimeter wave antenna 140. send.

In this case, the first millimeter wave transceiver 120 converts a high frequency signal into an unused millimeter wave signal among the permitted signals, and converts the frequency into a bandwidth of an allocated use frequency among bandwidths of several tens of MHz to several hundred MHz.

Here, the millimeter wave refers to a microwave band having a high frequency band and an ultra high frequency band having 15 GHz to 100 GHz.

Looking at the operation of the first millimeter wave transceiver 120 in more detail as follows.

First, when the first standard frequency oscillator 121 oscillates the standard frequency oscillation signal, the first bandwidth converter 122 receives the standard frequency oscillation signal oscillated from the first standard frequency oscillator 121 and converts the frequency band. The first millimeter wave oscillator 123 receives the converted frequency signal from the first bandwidth converter 122 and oscillates the millimeter wave oscillation signal.

Accordingly, the first millimeter wave transceiver 124 combines the forward high frequency signal received from the base station transceiver unit 110 and the millimeter wave oscillation signal input from the first millimeter wave oscillator 123 to forward down the high frequency signal. The signal is converted into a wave signal and then transmitted to the remote repeater 200 through the first millimeter wave antenna 140.

On the other hand, the second millimeter wave transceiver 210 of the remote repeater 200 converts the forward millimeter wave signal received from the base station link repeater 100 through a second millimeter wave antenna 240 into a forward high frequency signal. To the service relay unit 220.

Accordingly, the service relay unit 220 high power amplifies the forward high frequency signal received from the second millimeter wave transceiver 210 and transmits it to the subscriber station 400 of the radio wave region through the repeater service antenna 230. .

2. Reverse (from terminal to base station)

First, the service relay unit 220 outputs the reverse high frequency signal received from the subscriber station 400 in the radio shade region through the relay service antenna 230 to the second millimeter wave transceiver 210.

Accordingly, the second millimeter wave transceiver 210 converts a reverse high frequency signal received from the service repeater 220 into a reverse millimeter wave signal to convert the base station link through the second millimeter wave antenna 240. 100).

In this case, the second millimeter wave transceiver 210 converts a high frequency signal into an unused millimeter wave signal among the permitted signals, and converts the frequency into a bandwidth of an allocated use frequency among bandwidths of several tens of MHz to several hundred MHz.

Looking at the operation of the second millimeter wave transceiver 210 in more detail as follows.

First, when the second standard frequency oscillator 211 oscillates the standard frequency oscillation signal, the second bandwidth converter 212 receives the standard frequency oscillation signal oscillated from the second standard frequency oscillator 211 and converts the frequency band. The second millimeter wave oscillator 213 receives the converted frequency signal from the second bandwidth converter 212 and oscillates the millimeter wave oscillation signal.

Accordingly, the second millimeter wave transceiver 214 combines the reverse high frequency signal input from the service relay unit 220 and the millimeter wave oscillation signal input from the second millimeter wave oscillator 213 to reverse the reverse high frequency signal. The signal is converted into a wave signal and transmitted to the base station link repeater 100 through a second millimeter wave antenna 240.

On the other hand, the first millimeter wave transceiver 120 of the base station link repeater 100 converts the reverse millimeter wave signal received from the remote repeater 200 through a first millimeter wave antenna 140 into a reverse high frequency signal. And outputs to the base station transceiver 110.

Accordingly, the base station transceiver 110 transmits the high frequency amplified signal received from the first millimeter wave transceiver 120 to the subscriber station 300 of the mobile communication service through the base station service antenna 130 or Or it transmits to the subscriber station of the other communication service through the switching center (500).

The first wireless call unit 150 and the second wireless call unit 250 are installed in the first millimeter wave transceiver 120 and the second millimeter wave transceiver 210, respectively, and the first millimeter wave antenna 140. ) And a second millimeter wave antenna 240 is a wireless speaker microphone device for transmitting a radio control signal to focus so as to face each other in a straight line.

The first failure monitoring unit 160 and the second failure monitoring unit 260 are respectively installed in the first millimeter wave transceiver 120 and the second millimeter wave transceiver 210, and the first millimeter wave transceiver ( 120 and the second millimeter wave transceiver 210 monitor normal operation and transmit a monitoring signal to the base station transceiver 110. Accordingly, the base station transceiver 110 is configured to monitor the first fault monitor ( On the basis of the monitoring signal transmitted from the 160 and the second fault monitoring unit 260, it informs the central monitoring center whether the first millimeter wave transceiver 120 and the second millimeter wave transceiver 210 are normally operated.

The first antenna direction adjusting unit 170 and the second antenna direction adjusting unit 270 are respectively provided in the first millimeter wave antenna 140 and the second millimeter wave antenna 240, respectively, and the first millimeter wave antenna 140. And the second millimeter wave antenna 240 to adjust the correct direction.

As described above, the broadband repeater according to the present invention converts a radio frequency signal into an unused milliwave signal in a base station link repeater in a mobile communication service such as IMT-2000, PCS, cellular, etc. It transmits to the remote repeater of the network, and converts the millimeter wave signal into the high frequency signal at the remote repeater and relays it to the subscriber station. Not only can more subscribers communicate at the same time, but if they want to replace frequency or bandwidth, they can replace it with the desired frequency and bandwidth without having to replace the entire equipment. The effect is to improve profits.

Claims (8)

Converts a forward high frequency signal into a forward millimeter wave signal and transmits it through a first millimeter wave antenna, converts a backward millimeter wave signal received through the first millimeter wave antenna into a reverse high frequency signal, and provides a mobile communication service through a base station service antenna. A base station link repeater for transmitting to a subscriber station or for transmitting to another communication service subscriber station through an exchange station; Converts a forward millimeter wave signal received from the base station link repeater through a second millimeter wave antenna into a forward high frequency signal, and transmits it to a subscriber station in a radio shadow area through a repeater service antenna and a radio shadow area through the repeater service antenna. And a remote repeater for converting a reverse high frequency signal received from a subscriber station to a reverse millimeter wave signal and transmitting the reverse high frequency signal to the base station link repeater through the second millimeter wave antenna. The repeater of claim 1, wherein the base station link repeater A base station transceiver for transmitting a forward radio frequency signal or a reverse radio frequency signal to a subscriber station of a mobile communication service through the base station service antenna or to a subscriber station of another communication service through an exchange station; Converts a forward high frequency signal received from the base station transceiver unit into a forward millimeter wave signal and transmits it to the remote repeater through the first millimeter wave antenna, and reverse millimeter wave received from the remote repeater through the first millimeter wave antenna. And a first millimeter wave transceiver for converting a signal into a reverse high frequency signal and outputting the signal to the base station transceiver. The method of claim 2, wherein the first millimeter wave transceiver A first standard frequency oscillator for oscillating a standard frequency oscillation signal; A first bandwidth converter for converting a frequency band by receiving a standard frequency oscillation signal oscillated from the first standard frequency oscillator; A first millimeter wave oscillator for receiving the converted frequency signal from the first bandwidth converter and oscillating a millimeter wave oscillation signal; Synthesizing the reverse high frequency signal input from the base station transceiver unit and the millimeter wave oscillation signal input from the first millimeter wave oscillator and converting the reverse high frequency signal into a reverse millimeter wave signal, the remote repeater through the first millimeter wave antenna Broadband relay system for a mobile communication service, characterized in that the first millimeter wave transceiver to transmit to. The remote repeater of claim 1, wherein the remote repeater The forward millimeter wave signal received from the base station link repeater through the second millimeter wave antenna is converted into a forward high frequency signal, and the received reverse high frequency signal is converted into a reverse millimeter wave signal through the second millimeter wave antenna. A second millimeter wave transceiver for transmitting to a base station link repeater; The forward high frequency signal received from the second millimeter wave transmission / reception unit is transmitted to the subscriber station in the radio shade region through the repeater service antenna, and the reverse high frequency signal received through the repeater service antenna is transmitted to the second millimeter wave transceiver. Broadband relay system for mobile communication services, characterized in that consisting of a service relay unit. The method of claim 4, wherein the second millimeter wave transceiver A second standard frequency oscillator for oscillating the standard frequency oscillation signal; A second bandwidth converter configured to receive a standard frequency oscillation signal oscillated from the second standard frequency oscillator and convert a frequency band; A second millimeter wave oscillator for receiving the converted frequency signal from the second bandwidth converter and oscillating the millimeter wave oscillation signal; Synthesizing a reverse high frequency signal input from the service relay unit and a millimeter wave oscillation signal input from the second millimeter wave oscillator, converts a reverse high frequency signal into a reverse millimeter wave signal, and then links the base station through the second millimeter wave antenna. Broadband relay system for a mobile communication service, characterized in that the second millimeter wave transceiver for transmitting to the repeater. The method according to claim 2 or 4, The mobile communication service further comprises a first wireless call unit or a second wireless call unit for transmitting a radio adjustment signal to focus the first millimeter wave antenna and the second millimeter wave antenna facing each other in a straight line. Broadband relay system. The method according to claim 2 or 4, And a first fault monitor or a second fault monitor for monitoring whether the first millimeter wave transceiver or the second millimeter wave transceiver is operating normally. The method according to claim 2 or 4, And a first antenna direction adjuster or a second antenna direction adjuster for precisely adjusting the first millimeter wave antenna or the second millimeter wave antenna.