KR101631602B1 - Repeater system for mobile communication service and unified repeater for multiple mobile communication service providers - Google Patents

Abstract

The present invention relates to a mobile communication repeater system and an integrated line repeater, and more particularly, to a mobile communication repeater system and an integrated line repeater, which are capable of filtering and amplifying a forward signal to a base station, filtering and amplifying a reverse signal from the mobile communication terminal, A first combining and separating unit for combining the frequency-dependent forward signals of the plurality of frequency bands of the mobile communication terminal, the first combining and separating unit for separating the reverse signals into frequency-dependent reverse signals, And an integrated line repeater for adjusting the gain and the output intensity on a frequency-by-frequency basis, on the basis of the value set for each frequency, with respect to the reverse signal.
Therefore, according to the present invention, two or more mobile communication service providers use an integrated line repeater to improve the quality of mobile communication service in a radio wave shadow area, thereby compensating loss due to RF connection cable and RF signal combining and separator, You can save money and reduce the reverse noise figure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication repeater system and an integrated line repeater,

The present invention relates to a mobile communication repeater system and an integrated line repeater, and more particularly, to a mobile communication repeater system and an integrated line repeater. More particularly, the present invention relates to a mobile communication repeater system and an integrated line repeater, To a mobile communication repeater system and an integrated line repeater.

In general, a mobile communication system aims at providing high-quality services to subscribers regardless of places. In order to achieve this, a repeater is installed in an area where the quality of mobile communication service is poor.

The repeater extends the wireless transmission / reception part of the base station and is capable of providing highly effective mobile communication services at low cost in a building or underground area such as underground radio waves. It is widely used for increasing the capacity of a subscriber and for a service in a specific area have.

FIG. 1 is a diagram illustrating a conventional repeater system for a mobile communication service in a shaded area such as an elevator.

Referring to FIG. 1, a repeater system for a mobile communication service in a shaded area such as an elevator includes repeaters 110a, 110b, ..., 110n (hereinafter referred to as 110) A first combining and separating unit 120a for combining and separating signals, a second combining unit for combining CATV signals from a CATV (cable television) box 130 and forward signals from the first combining and separating unit 120a, And a third combining and separating unit 120c for separating the combined signal from the second combining and separating unit 120b into a CATV signal and a forward signal.

Each frequency-dependent repeater 110 is connected to the first combiner / separator 120a via an RF cable 115 and the first combiner / separator 120a is connected to the second combiner / Coupling and separator 120b.

The combined signal at the second combining and separating unit 120b is transmitted to the third combining and separating unit 120c installed in the elevator 155 via the RF cable 115. [

The third combining and separating unit 120c separates the signal transmitted from the second combining and separating unit 120b into a CATV signal and a forward signal, and transmits the CATV signal to the CATV unit 160. The forward signal separates the service antenna To the mobile communication terminal (180).

However, when the mobile communication signal is weak in the above-mentioned system, the mobile communication terminal outputs a high-intensity signal in accordance with the power control procedure, so that there is a possibility that the safety operation of the elevator may be hindered by affecting the control circuit in the elevator .

In addition, since an output of a repeater must be transmitted in order to compensate for a loss of an RF signal caused by a coupling and separator with an RF cable that transmits an RF signal to an elevator, an increase in the price of the repeater causes increase in RF signal loss There is a problem that the output power of the terminal increases.

In addition, it is necessary to adjust the forward output and gain of the repeater according to the difference of the length of the RF cable according to the installation environment. In reality, since the repeater must transmit signals to the other space besides the elevator, it is difficult to adjust the forward output and gain to the elevator signal there is a problem.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems described above, and it is an object of the present invention to provide a mobile station which can increase the output intensity of a downlink (base station to mobile station) A communication repeater system and an integrated line repeater.

It is another object of the present invention to automatically adjust the output and gain of a signal according to the output signal intensity difference of each repeater and the RF cable length difference between each repeater and the first coupler and separator so that the signal strength from each repeater is The present invention provides a mobile communication repeater system and an integrated line repeater that can transmit a constant output even when signal strengths of the respective repeaters are changed to maintain a constant signal strength in a shaded area such as an elevator and provide stable service have.

According to an aspect of the present invention, there is provided a frequency-dependent repeater for filtering and amplifying a forward signal received from a base station, filtering and amplifying a reverse signal from the mobile communication terminal and transmitting the amplified signal to the base station, A first combining and separating unit for combining the frequency-dependent forward signals of the plurality of frequency bands of the mobile communication terminal, the first combining and separating unit for separating the reverse signals into frequency-dependent reverse signals, There is provided a mobile communication relay system including an integrated line repeater for adjusting a gain and an output intensity based on a value set for each frequency with respect to a reverse signal.

The mobile communication relay system combines a forward signal from the integrated line repeater and a CATV signal from a cable television (CATV) box and transmits the resultant signal through an RF cable, or separates a signal from the RF cable into a reverse signal and a CATV signal 2 combiner and separator, separates a signal from the RF cable into a forward signal and a CATV signal, sends the signal to the mobile communication terminal and the CATV device, or combines the reverse signal from the mobile communication terminal and the CATV signal from the CATV device, And a third coupling and separator for outputting to the second coupling and separator through a cable.

According to another aspect of the present invention, there is provided a mobile communication system comprising: a first multiplexer for dividing a forward signal from a frequency-dependent repeater based on a frequency band; a first multiplexer for dividing a reverse signal from the at least one mobile communication terminal A forward output and gain adjustment module for adjusting a gain and an output intensity for each frequency on the basis of a frequency-dependent forward signal for each frequency from the first multiplexer, a second multiplexer for classifying the communication service, A reverse output and gain adjustment module for adjusting a gain and an output intensity for each frequency on the basis of a preset value for a reverse signal from the multiplexer, and a forward output and gain adjustment module for controlling the forward output and gain adjustment module or the reverse output and gain adjustment module Based on the frequency-dependent power detection signal, By number of the integrated line repeater it is provided that includes a control module for outputting a gain adjustment control signal for the gain control.

An IF (Intermediate Frequency) distributor for distributing a signal converted to an intermediate frequency after the low-noise amplification, a forward gain controller for dividing the forward signal output from the IF divider by a gain control signal from the control module, And a frequency up converter for up-converting a frequency of a signal received from the power combiner, a frequency up converter for up-converting the frequency of the signal received from the power combiner, A bandpass filter for filtering only a signal of a desired band from a signal received from the converter, a high power amplifier (HPA) for amplifying a signal received from the bandpass filter, The entire electric field for outputting the detection signal for total gain control Detector, includes an isolator for separating the reflected wave of the signal outputted from the full-power detector.

Wherein the gain controller adjusts a gain of a signal received from the IF SAW filter based on a gain adjustment control signal from the control module, And a power detector for detecting power in a signal from the gain adjuster and for transmitting a power detection signal to the control module.

The forward output and gain adjustment module is separately provided according to a mobile communication service according to a frequency band.

Wherein the reverse output and gain adjustment module comprises: an IF distributor for distributing the reverse signal converted to the intermediate frequency after the low noise amplification; a gain controller for outputting a gain and an output signal based on the gain control signal from the control module, A frequency up converter for up-converting a frequency of a signal received from the power combiner, a frequency up converter for up-converting the frequency of the received signal from the frequency up converter, A bandpass filter for filtering only a signal of a desired band in one signal, an HPA for amplifying a signal received from the bandpass filter, and a detector for detecting a power of a signal received from the HPA, A total power detector for outputting power, And an isolator for separating the reflected wave of the signal output from the base.

An IF SAW filter for passing only a signal of a corresponding frequency in a reverse signal from the IF splitter, a gain control unit for adjusting a gain of a signal received from the IF SAW filter based on a gain control signal from the control module, And a power detector for detecting power in a signal from the gain adjuster and for transmitting a power detection signal to the control module.

The reverse output and gain adjustment modules are provided according to the type of mobile communication service according to the frequency band.

As described above, according to the present invention, two or more mobile communication service providers use an integrated line repeater to improve the quality of mobile communication service in a radio wave shadow area, thereby compensating loss due to RF cable and RF signal combining and separator, Can reduce equipment costs and reduce reverse noise figure.

Also, even if the signal strengths from the respective repeaters are different or the signal strengths of the respective repeaters are changed, a constant output can be transmitted to maintain a constant signal strength in a radio wave shadow area such as inside the elevator, and provide stable service.

1 is a diagram illustrating a conventional repeater system for mobile communication services in a radio-shadowed area such as within an elevator.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobile communication relay system.
3 is a view schematically showing a configuration of a mobile communication relay system in a radio wave shadow area such as an inside of an elevator according to an embodiment of the present invention.
4 is a diagram specifically illustrating a configuration of an integrated line repeater according to the present invention;

The foregoing and other objects, features, and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

Hereinafter, a signal in the direction of the mobile communication terminal in the base station will be referred to as a forward signal and a signal in the direction of the base station in the mobile communication terminal will be referred to as a backward signal.

2 is a diagram schematically showing a configuration of a mobile communication relay system according to an embodiment of the present invention.

Referring to FIG. 2, the mobile communication relay system includes frequency-dependent repeaters 210a, 210b, ..., and 210n (hereinafter, referred to as 210) (220a), and an integrated line repeater (300).

Here, the frequency refers to different frequency bands allocated to different carriers providing services through the repeater 210, such as a telecommunication carrier, a cable broadcasting carrier, and the like. Therefore, frequencies are assigned differently for different operators.

The repeater 210 filters and amplifies the forward signal received from the base station 200 through the donor antenna or filters and amplifies the reverse signal from the mobile communication terminal and transmits the amplified signal to the base station 200. Each repeater 210 filters and amplifies forward or reverse signals corresponding to the respective assigned frequencies.

The first combiner / separator 220a combines the frequency-specific forward signals from the respective repeaters 210 and transmits them to the integrated line repeater 300. The first combiner / separator 220a separates the reverse signals into frequency- (210).

The integrated line repeater 300 automatically adjusts the output intensity and the gain based on the forward signal from the first combiner / splitter 220a or the reverse signal from the mobile communication terminal based on the value set for each frequency do.

In addition, the integrated line repeater 300 receives a reverse signal from a mobile communication terminal in a shadow area such as an elevator, and automatically adjusts the output intensity and gain based on a value set for each frequency, 220a.

The integrated line repeater 300 will be described in detail with reference to FIG.

Each repeater 210 and the first coupler and separator 220a are connected to each other through an RF cable 215. The first coupler and separator 220a and the integrated line repeater 300 are connected to an RF sharing cable 225 Lt; / RTI >

3 is a diagram schematically showing a configuration of a mobile communication relay system in a radio wave shadow area such as the inside of an elevator according to an embodiment of the present invention.

Referring to FIG. 3, a mobile communication relay system in a transgressive area such as an elevator includes frequency-dependent repeaters 210a, 210b, ..., 210n (hereinafter referred to as 210) And a CATV apparatus installed in a radio wave shaded area such as an integrated line repeater 300 and an elevator to connect the base station 200 and the mobile communication terminal 280 within the radio wave shadow area And second and third combiner and separators 220b and 220c for enabling the relaying of the RF signal between the first and second combiners and separators 220a and 220b.

The repeater 210, the first coupler / separator 220a, and the integrated line repeater 300 correspond to those of FIG. 2, and thus description thereof will be omitted.

The second coupler and separator 220b couples the forward signal from the integrated line repeater 300 and the CATV signal from the CATV box 230 to the RF cable 215, Into a reverse signal and a CATV signal by the mobile communication terminal (280).

The third combining and separating unit 220c separates a signal from the RF cable 215 into a forward signal and a CATV signal and transmits the forward signal and the CATV signal to the mobile communication terminal 280 and the CATV device 260, And the CATV signal from the CATV device 260 and transmits the combined signal to the second combining and separating unit 220b through the RF cable 215. [

Hereinafter, a method of operating the system configured as described above will be described.

First, a method of operating a mobile communication relay system in a forward path from the base station 200 to the mobile communication terminal 280 will be described.

Each repeater 210 receives the signal transmitted from the base station 200 of the corresponding frequency through the donor antenna, amplifies the signal, and transmits the amplified signal to the first combining and separating unit 220a via the RF Cable 215.

The first combiner and separator 220a combines frequency-specific forward signals from the first through n-th relays 210 and transmits the forward signals to the integrated line repeater 300 through an RF-shared cable 225.

The integrated line repeater 300 automatically adjusts the output intensity and gain based on the value set for each frequency with respect to the frequency-specific forward signal, and then transmits the forward signal to the second combining and separating unit 220b.

The second combiner and separator combines the forward signal from the integrated line repeater with the CATV signal from the CATV BOX 230 and transmits it to the RF Cable 215 installed up to the elevator 255.

A signal from the RF cable 215 installed from the elevator passageway 250 to the elevator 255 is input to the third coupler and separator 220c and the third coupler and separator 220c transmits the signal to the CATV signal The CATV signal is transmitted to the CATV device 260, and the mobile communication forward signal is transmitted to the service antenna 270.

Next, a method of operating the mobile communication relay system in the reverse path from the mobile communication terminal 280 to the base station 200 will be described.

The third combining and separating unit 220c combines the frequency-dependent inverse signal from the mobile communication terminal 280 of the first frequency to the n-th frequency and the CATV signal from the CATV apparatus 260 and transmits the CATV signal to the elevator RF cable 215 .

A signal output from the RF cable 215 in the elevator is transmitted to the CATV box 230 through the second coupler / separator 220b, and the mobile communication reverse signal is transmitted to the integrated line repeater 300.

The integrated line repeater 300 automatically adjusts the output intensity and gain based on the value set for each frequency with respect to the frequency-specific reverse signal, and then transmits the signal to the first combining and separating unit 220a through the RF sharing cable 225 do.

The first combiner / separator 220a determines the frequency of the reverse signal from the integrated line repeater 300 and transmits the signal to the repeater 210 of the corresponding frequency.

Then, each repeater 210 passes and amplifies only the reverse signal of the corresponding frequency, and sends it to the donor antenna.

Here, only the CATV equipment installed in the shadowed area is described, but it is also possible to use closed-circuit television (CCTV) equipment.

In the mobile communication relay system as described above, the integrated line repeater 300 is disposed between the common RF cable 225 and the second coupling and decoupling device 220b, thereby solving the problems caused by the difference in the RF cable loss .

In addition, by installing the integrated line repeater 300, it is possible to reduce the equipment cost of the repeater 210 by reducing the strength of the frequency-dependent repeater output signal in the forward direction (from the base station to the mobile station) and reduce the total reverse noise figure.

In addition, the difference between the output signal strength of the repeater 210 and the difference in RF cable length between each repeater 210 and the first combining and separating 220a is input to the first combining and separating unit 220a It is possible to automatically adjust the output and gain of the signals having different intensities so that even if the signal intensity from each of the repeaters 210 is different or the signal strength of each of the repeaters 210 is changed, It is possible to maintain a constant signal strength in a local area and provide a stable service.

FIG. 4 is a diagram illustrating a configuration of an integrated line repeater according to the present invention.

4, the integrated line repeater 300 includes first and second multiplexers 310 and 320, a forward output and gain adjustment module 330, a reverse output and gain adjustment module 360, a control module 390, .

The first multiplexer 310 classifies a forward signal from each frequency-dependent repeater according to a mobile communication service such as Wideband Code Division Multiple Access (WCDMA) or a code division multiple access (CDMA) 330). That is, the first multiplexer 310 separates the forward signal into frequency bands. Then, the forward signal is classified according to a mobile communication service such as WCDMA or CDMA according to a frequency band.

The forward output and gain adjustment module 330 adjusts the output intensity and the gain according to a preset frequency-dependent forward signal from the first multiplexer 310.

The forward output and gain adjustment module 330 is provided according to a mobile communication service according to a frequency band. For example, the forward output and gain adjustment module 330 may include a first forward output and gain adjustment module for adjusting the output intensity and gain for each frequency with respect to the frequency-dependent forward signal of WCDMA, And a second forward output and gain control module for adjusting the output power and gain.

The forward output and gain adjustment module 330 performs the above functions and includes a low noise amplifier 331, a frequency down converter 332, an intermediate frequency (IF) distributor 333, a gain adjuster 340, A power combiner 334, a frequency upconverter 335, a bandpass filter 336, a high power amplifier (HPA) 337, an overall power detector 338, and an isolator 339.

The low noise amplifier 331 minimizes and amplifies the noise of the forward signal from the first multiplexer 310 and transmits the amplified signal to the frequency down converter 332.

The frequency down-converter 332 converts the amplified signal to an intermediate frequency and transmits the intermediate frequency to the IF distributor 333.

The IF splitter 333 distributes the signal converted to the intermediate frequency to the gain controllers 340a and 340b and transmits the signals.

The gain controller 340 controls the gain and the output intensity for each frequency based on the gain adjustment control signal from the control module 390 with respect to the signal from the IF splitter 333 And frequency, respectively.

That is, the gain adjuster 340 includes a first gain adjuster 340a for adjusting the gain and the output of the first frequency forward signal, a second gain adjuster 340b for adjusting the gain and the output of the second frequency forward signal, ), And so on.

The gain controller 340 includes an IF SAW filter 341, a gain adjuster 342, and a power detector 343.

The IF SAW filter 341 passes only the corresponding frequency signal from the forward signal received from the IF splitter 333 to the gain adjuster 342.

The gain adjuster 342 adjusts the gain of the signal received from the IF SAW filter 341 based on the gain adjustment control signal from the control module 390. That is, if the gain control signal is a signal for lowering the gain, the gain adjuster 342 lowers the gain of the signal received from the IF SAW filter 341.

When the gain adjustment is performed in the gain adjuster 342, the output intensity of the signal is adjusted.

The power detector 343 detects power in a signal received from the gain adjuster 342 and transmits a power detection signal to the control module 390.

The IF SAW filter 341, the gain adjuster 342, and the power detector 343 are provided for respective frequencies.

The power combiner 334 combines the frequency-specific signals output from the gain controllers 340 and transmits the combined signals to the frequency up-converter 335.

The frequency up-converter 335 up-converts the frequency of the signal received from the power combiner 334 and transmits it to the band-pass filter 336.

The band-pass filter 336 filters only a signal of a desired band from the signal received from the frequency up-converter 335.

The HPA 337 amplifies the signal received from the band-pass filter 336.

The total power detector 338 detects the power of the signal received from the HPA 337 and outputs a detection signal for the entire output monitoring or the overall gain control.

The isolator 339 separates the reflected wave of the signal output from the total power detector 338.

The reverse output and gain adjustment module 360 controls the output intensity and the gain according to a preset value for the reverse signal from the second multiplexer 320.

The reverse output and gain adjustment module 360 performing the above functions corresponds to the configuration of the forward output and gain adjustment module 330 and will not be described here.

The control module 390 outputs a gain control signal for frequency-dependent gain control based on the frequency-dependent power detection signal from the forward output and gain control module 330 or the reverse output and gain control module 360 do.

That is, the control module 390 compares the power detection signal from the power detector 343 with a preset value to generate a gain adjustment control signal for outputting the gain and the output intensity according to the set value, (340).

Hereinafter, a method of operating the integrated line repeater 300 configured as described above will be described.

First, the operation of the integrated line repeater 300 in the WCDMA forward path in the direction of the mobile station in the WCDMA base station will be described.

The forward signal input from the RF sharing cable is supplied to the low noise amplifier 331 through the first multiplexer 310 and is converted to the intermediate frequency through the frequency down converter 332.

The first frequency forward signal having passed through the IF splitter 333 is automatically adjusted in accordance with a preset value in the gain adjuster 342a after passing through the IF SAW filter 341a.

The gain-adjusted first frequency forward signal passes through a power detector 343a, which detects the power of the first frequency forward signal and transmits a power detection signal to the control module 390 , And the first frequency forward signal is transmitted to the power combiner 334.

The power combiner 334 combines the first frequency forward signal and the nth frequency forward signal and transmits the combined signal to the frequency up converter 335. The combined signal passes through a bandpass filter 336 via a frequency upconverter 335 and then through a WCDMA HPA 337, a total power detector 338, an isolator 339 and a second multiplexer 320 .

Although the WCDMA signal has been described above, the same method is applied to CDMA.

Next, the operation of the integrated line repeater in the WCDMA reverse path in the direction of the base station in the WCDMA mobile station will be described.

The mobile communication reverse signal is supplied to the low noise amplifier 361 through the second multiplexer 216 and is converted to the intermediate frequency through the frequency down converter 362.

The first frequency reverse signal having passed through the IF splitter 363 is automatically adjusted in accordance with a preset value in the gain adjuster 342a after passing through the IF SAW filter 371a. That is, the gain adjuster 372a automatically adjusts the reverse gain by the forward gain that is automatically adjusted by the control module 390.

The gain-adjusted first frequency reverse signal passes through a power detector 343a, which detects the power of the first frequency reverse signal and transmits a power detection signal to the control module 390 , And the first frequency reverse signal is transmitted to the power combiner 364.

The power combiner 364 combines the first frequency inverse signal and the nth frequency inverse signal and transmits the combined signal to the frequency up converter 365. The combined signal passes through a band-pass filter 366 via a frequency up-converter 365 and then through a first multiplexer 310 via a WCDMA HPA 367, an overall power detector 368, an isolator 369, .

Although the WCDMA signal has been described above, the same method is applied to CDMA and the like.

By using the integrated line repeater 300 configured as described above, it is possible to reduce the equipment cost of the repeater and reduce the reverse noise figure by compensating the loss of the conventional RF cable and RF signal combining and separator.

Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

As described above, since the mobile communication repeater system and the integrated line repeater of the present invention use an integrated line repeater to improve the quality of mobile communication service in the shadowed area of two or more mobile communication service providers, It is suitable for a need to reduce the equipment cost of the repeater.

200: base station 210: repeater
215: RF cable 220: Coupling and separator
225: RF Shared Cable 300: Integrated Line Repeater
260: CATV apparatus 250: elevator passage
255: elevator 280: mobile communication terminal
310: first multiplexer 320: second multiplexer
330: Forward power and gain control module
331, 431, 361, 461: a low-noise amplifier
332, 432, 362, 462: an intermediate frequency amplifier
333, 433, 363, 463: IF distributor 340, 370, 440, 470:
341, 371, 441, 471: Saw filter 342, 372, 442, 472:
343, 373, 443, 473: power detector 334, 434, 364, 464:
335, 435, 365, 465: frequency up converter
336, 436, 366, 466: Bandpass filter
337, 437, 367, 467: HPA 338, 438, 368, 468:
339, 439, 369, 469: isolator

Claims (9)

A frequency-dependent repeater for filtering and amplifying a forward signal received from a base station, filtering and amplifying a reverse signal from the mobile communication terminal, and transmitting the filtered signal to the base station;
A first combining and separating unit for combining frequency-dependent forward signals from the respective repeaters, separating the backward signals into frequency-dependent backward signals, and transmitting the reverse signals to repeaters of the corresponding frequencies,
An integrated line repeater for adjusting a gain and an output intensity based on a forward signal from the first combining and separator or a reverse signal from the mobile communication terminal based on a value set for each frequency;
/ RTI >
The integrated line repeater
A forward output and gain adjustment module for adjusting the gain and the output intensity for each frequency on the basis of a preset value for each frequency with respect to a forward signal from the first combining and separator;
A reverse output and gain adjustment module for adjusting the gain and the output intensity for each frequency based on a value preset for each frequency with respect to a reverse signal from the mobile communication terminal; And
And a control module for outputting a gain adjustment control signal for frequency-dependent gain adjustment based on the forward output and gain adjustment module or the frequency-dependent power detection signal from the reverse output and gain adjustment module
Mobile communication relay system.
The method according to claim 1,
A second combining and separating unit for combining a forward signal from the integrated line repeater and a CATV signal from a CATV cable box and transmitting the CATV signal to an RF cable or separating a signal from the RF cable into a reverse signal and a CATV signal;
A signal from the RF cable is separated into a forward signal and a CATV signal and is transmitted to the mobile communication terminal and the CATV device or a reverse signal from the mobile communication terminal is combined with a CATV signal from the CATV device, 2 < / RTI > coupler and a separator.
A first multiplexer for dividing a mobile communication service based on a frequency band with respect to a forward signal from a frequency-dependent repeater;
A second multiplexer for dividing a mobile communication service based on a frequency band with respect to a reverse signal from at least one mobile communication terminal;
A forward output and gain adjustment module for adjusting a gain and an output intensity for each frequency on the basis of a frequency-dependent forward signal for each frequency from the first multiplexer;
A reverse output and gain adjustment module for adjusting a gain and an output intensity for each frequency on the basis of a value preset for each frequency with respect to a reverse signal from the second multiplexer;
A control module for outputting a gain adjustment control signal for controlling a frequency-dependent gain based on the forward output and gain adjustment module or the frequency-dependent power detection signal from the reverse output and gain adjustment module;
And an integrated line repeater.
The method of claim 3,
Wherein the forward output and gain adjustment module comprises:
An IF (Intermediate Frequency) distributor for distributing a signal converted to an intermediate frequency after low noise amplification;
A gain adjuster for adjusting a gain and an output intensity for each frequency based on a gain adjustment control signal from the control module for a forward signal distributed in the IF distributor;
A power combiner for combining frequency-specific forward signals output from the gain controllers;
A frequency up-converter for up-converting a frequency of a signal received from the power combiner;
A band pass filter for filtering only a signal of a desired band from the signal received from the frequency up converter;
An HPA (High Power Amplifier) for amplifying a signal received from the band pass filter;
An overall power detector for detecting a power of a signal received from the HPA and outputting a detection signal for the entire output monitoring or the total gain control;
And an isolator for separating the reflected wave of the signal output from the total power detector.
5. The method of claim 4,
The gain controller may include:
An IF SAW filter for passing only a signal of a corresponding frequency in a forward signal from the IF distributor;
A gain adjuster for adjusting an output intensity by adjusting a gain of a signal received from the IF SAW filter based on a gain adjustment control signal from the control module;
And a power detector for detecting power in a signal from the gain adjuster and for transmitting a power detection signal to the control module.
5. The method of claim 4,
Wherein the forward output and gain adjustment module is provided according to a type of mobile communication service according to a frequency band.
The method of claim 3,
Wherein the reverse output and gain adjustment module comprises:
An IF distributor for distributing the reverse signal converted to the intermediate frequency after the low noise amplification;
A gain adjuster for adjusting gains and output intensities of the reverse signals distributed by the IF distributor on the basis of gain control signals from the control module;
A power combiner for combining frequency-dependent inverse signals output from the gain adjuster;
A frequency up-converter for up-converting a frequency of a signal received from the power combiner;
A band pass filter for filtering only a signal of a desired band from the signal received from the frequency up converter;
An HPA for amplifying a signal received from the bandpass filter;
An overall power detector for detecting a power of a signal received from the HPA and outputting a detection signal for the entire output monitoring or the total gain control;
And an isolator for separating the reflected wave of the signal output from the power detector.
8. The method of claim 7,
The gain controller may include:
An IF SAW filter for passing only a signal of a corresponding frequency in a reverse signal from the IF splitter;
A gain adjuster for adjusting an output intensity by adjusting a gain of a signal received from the IF SAW filter based on a gain adjustment control signal from the control module;
And a power detector for detecting power in a signal from the gain adjuster and for transmitting a power detection signal to the control module.
8. The method of claim 7,
Wherein the reverse output and gain adjustment module is provided according to a type of mobile communication service according to a frequency band.

Images