KR100707500B1 - Combinated repeater - Google Patents

Abstract

The present invention relates to a mobile communication system, and more particularly to a repeater for relaying signals.

The integrated repeater according to the present invention includes a main body for a repeater enclosure and a second-generation communication relay unit and a third-generation communication relay unit for transmitting and receiving signals using a pair of common antennas and another pair of feed lines, The included linear power amplifier is fixedly coupled to a door for a relay enclosure hinged to the body.

According to this aspect of the present invention, the integrated repeater according to the present invention can perform signal transmission / reception between the second-generation communication repeater and the third-generation communication repeater by using a pair of common antennas and another pair of feed lines, To provide high-quality relay service. In addition, the second-generation communication repeater and the third-generation communication repeater can solve various problems such as increase in noise due to signal interference between repeaters closely installed in the city center as in the past, and cosmetics.

In addition, the third generation communication repeater circuits are added to the second-generation communication repeater enclosure, and the bulky linear power amplifier is fixedly coupled to the door for the enclosure, which is a free space. Thus, the second generation communication repeater So that the configuration of the third-generation communication repeater can be easily implemented in addition to the enclosure. That is, the integrated repeater according to the present invention can be easily implemented.

CDMA, WCDMA, repeater enclosure, linear power amplifier.

Description

Combined repeater

1 is a view showing a configuration of a repeater for a conventional second generation and third generation communication.

2 is a block diagram illustrating an integrated repeater configuration in accordance with a preferred embodiment of the present invention.

3 is an external view of an integrated repeater enclosure according to an embodiment of the present invention;

Figure 4 is a front view of Figure 3;

Fig. 5 is a side view of Fig. 3; Fig.

6 is a front view of an integrated repeater enclosure in accordance with another embodiment of the present invention.

7 is a circuit diagram of a linear amplifier according to a preferred embodiment of the present invention.

FIG. 8 is a two-tone signal state diagram illustrating the operation of the circuit shown in FIG. 7; FIG.

Description of the Related Art

100: base station side antenna 110: terminal side antenna

120: CDMA repeater 121: A duplexer

122: B duplexer 123: first low noise amplifier

124: first linear power amplifier 125: second low-noise amplifier

126: second linear power amplifier 130: WCDMA repeater

131: C duplexer 132: D duplexer

133: third low-noise amplifier 134: third linear power amplifier

135: Fourth Low Noise Amplifier 136: Fourth Linear Power Amplifier

140: first duplexer 150: second duplexer

200: integrated repeater enclosure 210: main body

220: Door 221: Heat sink

222: fan 240: first door

241: 2nd generation heat sink 242: 2nd generation fan

250: second door 251: third generation heat sink

252: Fan for third generation 310: Signal processor

311: divider 312: first order vector modulator

313: First order canceller 314: Second order vector modulator

320: main amplifier 330: primary delay unit

340: Error amplifier 350: Secondary delay unit

360: output section 361: second order canceller

370: Pilot generator 380: Local oscillator

390: pilot detector 400:

The present invention relates to a mobile communication system, and more particularly to a repeater for relaying signals.

Recently, the number of users has been rapidly increasing along with the development of technology in the mobile communication field. And it is the base station that has the greatest number of costs and the greatest influence on the economical and service quality of the system in order to meet the usage form and various demands of users. In establishing the mobile communication network, it is desirable to serve all the service areas with a general base station. However, in the actual network configuration, since the base station is disposed in consideration of economical efficiency, a large number of non-serviceable areas such as an underground space, an apartment complex, a large building, a hill,

In particular, from the viewpoint of communication traffic, 85% of the traffic is concentrated in 5% of the total area of the mobile communication service, and only about 15% of traffic occurs in the remaining 95% area. Therefore, in order to provide high-quality mobile communication services at low cost for major areas such as highways, highways, and open spaces, which are low in traffic but in coverage, a repeater is used instead of a base station, It is efficient to use. Repeaters are known as optical repeaters, wireless (RF) repeaters. And microwave repeaters.

However, conventionally, each repeater is separately installed for each of the second generation (CDMA) and third generation (WCDMA) systems, so that a large amount of facility and operation costs are required. 1 is a view schematically showing an end mobile communication system. As shown in the figure, the repeater of the related art mobile communication system includes a WCDMA repeater 20 for relaying signal transmission / reception between a specific base station and a WCDMA subscriber station 40, and a WCDMA repeater 20 for transmitting and receiving signals between the specific base station and the CDMA subscriber station 30 And a CDMA repeater 10 for relaying the CDMA repeater 10 are separately provided.

In addition, it can be seen that each of the service antennas A1, A2, A3, and A4 and the feed lines L1, L2, L3, and L4 for signal transmission and reception are separately provided. This results in an enormous cost of installation and operation. Also, such a conventional repeater has various problems such as increased noise due to signal interference between repeaters closely installed in an urban area and aesthetics, as well as various limitations on the installation quantity of repeaters due to such noise increase.

It is an object of the present invention to provide an integrated repeater capable of relaying both second- and third-generation communication signals.

In addition, the present invention aims at providing an integrated repeater in which a third-generation repeater can be easily implemented in an existing second-generation repeater enclosure.

According to an aspect of the present invention, there is provided an integrated repeater comprising: a main body for a repeater enclosure; a second-generation communication relay unit for transmitting / receiving signals using a pair of common antennas and another pair of feed lines; Wherein the linear power amplifier included in the third generation communication relay unit is fixedly coupled to a door for a relay enclosure hinged to the main body.

According to this aspect of the present invention, the integrated repeater according to the present invention can perform signal transmission / reception between the second-generation communication repeater and the third-generation communication repeater by using a pair of common antennas and another pair of feed lines, To provide high-quality relay service. In addition, the second-generation communication repeater and the third-generation communication repeater can solve various problems such as increase in noise due to signal interference between repeaters closely installed in the city center as in the past, and cosmetics.

In addition, the third generation communication repeater circuits are added to the second-generation communication repeater enclosure, and the bulky linear power amplifier is fixedly coupled to the door for the enclosure, which is a free space. Thus, the second generation communication repeater So that the configuration of the third-generation communication repeater can be easily implemented in addition to the enclosure. That is, the integrated repeater according to the present invention can be easily implemented.

BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and further aspects of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, the second generation is limited to CDMA, and the third generation is limited to WCDMA, but it is not limited thereto.

2 is a block diagram illustrating an integrated repeater configuration according to a preferred embodiment of the present invention. As shown in the figure, the integrated repeater according to the present invention has a configuration in which the CDMA repeater 120 and the WCDMA repeater 130 share the base station side antenna 100 and the terminal side antenna 110. The base station side antenna 100 is an antenna for transmitting and receiving signals to and from the base station, and the terminal side antenna 110 is an antenna for transmitting and receiving signals to and from the mobile communication terminal. Since the antenna itself has already been variously known in the art, detailed description thereof will be omitted.

The first duplexer 140 filters the signals received through the feeder lines from the base station side antenna at the frequency bands for the respective communication service providers and transmits the corresponding signals of the CDMA repeater 120 or the WCDMA repeater 130 . The first duplexer 140 receives a signal to be transmitted from the CDMA repeater 120 or the WCDMA repeater 130 to the base station side and outputs the signal to the base station side antenna 100 through the feed line.

The second duplexer 150 filters the signal received through the feeder line from the antenna on the side of the terminal to a frequency band for each of the communication carriers and transmits the signal to the CDMA repeater 120 or the WCDMA repeater 130 . The second duplexer 150 receives a signal to be transmitted from the CDMA repeater 120 or the WCDMA repeater 130 to the terminal and outputs the received signal to the terminal side antenna 110 through the feed line. Since the duplexer itself has a known technical configuration, a detailed description thereof will be omitted.

The CDMA relay unit 120 and the WCDMA relay unit 130 are configured to relay the CDMA signal and the WCDMA signal, respectively. The A duplexer 121 of the CDMA repeater 120 receives the CDMA signal output from the first duplexer 140 and outputs the CDMA signal to a first low noise amplifier (LNA) 123. The first low-noise amplifier 123 performs low-noise amplification that minimizes the noise included in the WCDMA signal. A first linear power amplifier (LPA) 124 amplifies the low noise amplified CDMA signal in the first low noise amplifier 123. B duplexer 122 outputs the power amplified CDMA signal in the first linear power amplifier 124 to the second duplexer 150. Then, the second duplexer 150 outputs the power amplified CDMA signal to the terminal side antenna 110 through the feed line.

The second duplexer 150 outputs the CDMA signal received through the antenna 110 to the CDMA relay unit 120 as described above. The B duplexer 122 of the CDMA repeater 120 receives the CDMA signal output from the second duplexer 150 and outputs the CDMA signal to the second low noise amplifier 125. The second low-noise amplifier 125 performs low-noise amplification to minimize the noise included in the CDMA signal. The second linear power amplifier 126 amplifies the low noise amplified CDMA signal in the second low noise amplifier 125. The A duplexer 121 outputs the power amplified CDMA signal from the second linear power amplifier 126 to the first duplexer 140. Then, the first duplexer 140 outputs the power amplified CDMA signal to the base station side antenna 100 through the feed line.

The WCDMA relay unit 130 relays the WCDMA signal and performs the same function as the CDMA relay unit 120 described above. That is, the C Duplexer 131 of the WCDMA repeater 130 receives the WCDMA signal output from the first duplexer 140 and outputs the WCDMA signal to the third low-noise amplifier 133. The third low-noise amplifier 133 performs low-noise amplification to minimize the noise included in the WCDMA signal. The third linear power amplifier 134 power-amplifies the low-noise amplified WCDMA signal in the third low-noise amplifier 133. D duplexer 132 outputs the power amplified WCDMA signal in the third linear power amplifier 134 to the second duplexer 150. [ Then, the second duplexer 150 outputs the power amplified WCDMA signal to the terminal side antenna 110 through the feed line.

The second duplexer 150 outputs the WCDMA signal received through the terminal side antenna 110 to the WCDMA repeater 130 as described above. The D duplexer 132 of the WCDMA repeater 130 receives the WCDMA signal output from the second duplexer 150 and outputs the WCDMA signal to the fourth low noise amplifier 135. The fourth low-noise amplifier 135 performs low-noise amplification to minimize the noise contained in the WCDMA signal. The fourth linear power amplifier 136 amplifies the low-noise amplified WCDMA signal in the fourth low-noise amplifier 135. C demultiplexer 131 outputs the power amplified WCDMA signal from the fourth linear power amplifier 136 to the first duplexer 140. [ Then, the first duplexer 140 outputs the power amplified WCDMA signal to the base station side antenna 100 through the feed line.

Meanwhile, although not shown in the figure, the CDMA repeater 120 and the WCDMA repeater 130 may further include a configuration for modulating and demodulating signals between the low noise amplifier and the power amplifier, if necessary. And the detailed description thereof will be omitted.

FIG. 3 is an external view of an integrated repeater enclosure 200 according to an embodiment of the present invention, FIG. 4 is a front view of FIG. 3, and FIG. 5 is a side view of FIG. As shown in the figure, the integrated repeater enclosure 200 is divided into a main body 210 and a door 220. According to a preferred example, the integrated repeater enclosure 200 is additionally implemented with a third-generation communication repeater configuration in an existing CDMA communication repeater enclosure. Therefore, the integrated repeater enclosure 200 basically includes the circuit configuration of the CDMA repeater 120 shown in FIG. 2 inside the main body. As is known, although not shown, according to one example, a slotted shelf is provided in the main body 210, and the configurations of the CDMA relay unit 120 are inserted into slots of the shelf according to a slot method . Also, the first linear power amplifier 124 having a large volume in the configuration of the second-generation communication repeater is preferably implemented inside the main body and radiates heat through the heat sink 500 protruded to the outside.

The circuit configuration of the third generation repeater 130 may be additionally connected to the shelf inside the main body 210 according to a slot method. However, since the third linear power amplifier 134 having a large volume is difficult to install in a space inside the main body 210, the third linear power amplifier 134 is fixedly coupled to the rotatable door 220 hinged to the main body 210. That is, the third linear power amplifier 134 is fixedly coupled to the door 220 to utilize the free space.

The reason why the third linear power amplifier 134 is bulky is as follows. The third linear power amplifier 134 is an amplifier that amplifies a signal to be transmitted to the mobile communication terminal, as opposed to the fourth linear power amplifier 136. The signal transmitted to the mobile communication terminal must be sufficiently amplified to increase the reception ratio of the terminal. Therefore, the third linear power amplifier 134 for power-amplifying a signal to be transmitted to the mobile communication terminal must have a higher amplification efficiency than the fourth linear power amplifier 136 for power-amplifying a signal to be transmitted to the base station. The volume of the third linear power amplifier 134 is inevitably increased to increase the amplification efficiency. This is true of the first linear power amplifier 124 as well.

For the reasons described above, the bulky third linear power amplifier 134 is fixedly coupled to the inner side of the door 220 as shown in FIG. Preferably, the third linear power amplifier 134 may be fixedly coupled to the door 220 via a threaded connection. The door 220 according to the present invention is partially realized as a heat sink 221 as shown in the drawing. The fan 222 is installed in the inner space at the lower end of the heat sink 221. The heat sink 221 is driven by the third linear power amplifier 134 installed on the inner side of the door 220, The heat generated by the power amplification is dissipated to the outside.

6 is a front view of an integrated repeater enclosure in accordance with another embodiment of the present invention. The first door 240 and the second door 250 are hinged to both sides of the main body 210 and serve to open and close the inside of the main body 210. The first linear power amplifier 124 of the CDMA relay unit 120 is fixedly coupled to the inner surface of the first door 240 and the WCDMA relay unit 130 is connected to the inner surface of the second door 250. [ Of the third linear power amplifier 134 are fixedly coupled. The first door 240 and the second door 250 are partially formed of a heat sink 241 for the second generation and a heat sink 251 for the third generation, respectively. A second-generation fan 242 and a third-generation fan 252 are provided in the inner space of the lower portion of the second-generation heat sink 241 and the third-generation heat sink 251, respectively. The heat sink 241 for the third generation and the heat sink 242 for the third generation dissipate the heat generated by the high frequency power amplification in the first linear power amplifier 124 and the third linear power amplifier 134 to the outside.

FIG. 7 is a circuit diagram of a linear amplifier according to a preferred embodiment of the present invention, and FIG. 8 is a two-tone signal state diagram illustrating the operation of the circuit shown in FIG. Hereinafter, the operation of the linear power amplifier according to the preferred embodiment of the present invention will be described with reference to FIGS. 7 and 8. FIG.

As shown, the configurations of the linear power amplifier include a signal control unit 310, a main amplifier 320, a first delay unit 330, an error amplifier An error amplifier 340, a second delay unit 350, an output block 360, a pilot generator 370, a local oscillator 380, a pilot detector (Pilot Detector) 390, and a micro control unit (400).

It is assumed that a two-tone signal as shown in Fig. 8 (a) is input to the input terminal of the subdivided circuit. The signal input through the IN terminal is distributed to the main path and the auxiliary path by the distributor 311. [ The distributor 311 is preferably implemented as a directional coupler, i.e., a coupler. The input signal distributed to the main path is phase and gain adjusted by the first-order vector modulator (VM1) The first-order vector modulator 312 adjusts the phase and gain of the signal according to the control signal, which will be described later.

The main amplifier 320 power-amplifies the phase and gain adjusted signals in the first-order vector modulator 312. The signal amplified by the main amplifier 320 includes an IMD (Intermodulation Distortion) signal caused by the nonlinear element of the amplifier. As shown in FIG. 8, if two frequencies f1 and f2 are given, for example, signals with various hybrid components are output. However, the complete depletion harmonics such as 2 * f1 and 3 * f2 can be filtered. However, the problem is the 3 rd order, 2 * f1-f2 and 2 * f2-f1, which are very close to the f1 and f2 signals and are difficult to filter. Therefore, in order to remove the distortion signal, the signal amplified by the main amplifier 320 is firstly coupled to the first-order canceller 313 by the coupler.

Meanwhile, the input signal distributed to the auxiliary path in the splitter 311 is delayed by the first delay unit 330 to the first-order canceller 313. This is because the primary delay unit 330 is distributed to the auxiliary path such that the signal distributed to the main path described above is equal to the time applied to the primary canceller 313 in accordance with the power amplification in the main amplifier 320. [ Delayed signal. The delay configuration for signal delay can be implemented by a coaxial cable.

The first order canceller 313 may be implemented by a subtracter circuit and may cancel the signal delayed and applied by the first delay unit 330 from the signal amplified by the main amplifier 320 and applied through the coupling. According to another example, the first order canceller 313 may be implemented as a coupler, and the signals coupled by the coupler are canceled in the case of mutually opposite phases.

When the first canceler 313 is ideally canceled, only the distortion signal as shown in (c) of FIG. 6 is left. The distortion signal output from the first canceller 313 is canceled out and phase and gain are adjusted by the second-order vector modulator (VM2) 314. The second-order vector modulator 314 adjusts the phase and gain of the signal according to the control signal, which will be described later.

The error amplifier 340 power-amplifies the phase and gain adjusted signals in the second-order vector modulator 314. The power amplified signal at the error amplifier 340 is applied to the second-order canceller 361. In FIG. 7, the second order canceller 361 is shown as an example of a coupler. Meanwhile, the power amplified signal from the main amplifier 320 is delayed by the second delay unit 350 to the second-order canceller 361. This is because the second delay unit 350 is controlled so that the signal canceled at the first canceling unit 313 is equal to the time at which the signal is applied to the second canceling unit 361 in accordance with the power amplification at the error amplifier 340. [ The signal amplified by the main amplifier 320 is delayed.

The second-order canceller 361 cancels the distortion signal as shown in FIG. 8 (c) applied from the error amplifier 340 from the signal as shown in FIG. 8 (b) which is power amplified by the main amplifier 320. When the second canceller 361 is ideally canceled, only the original signal as shown in FIG. 8 (d) remains, which is output to the outside via the output terminal OUT.

Meanwhile, the pilot generator 370 generates a pilot signal for generating a control signal for adjusting the phase and gain of the distortion signal in the second-order vector modulator 314. The pilot signal generated by the pilot generator 370 may be coupled coupled to the main path as shown in FIG.

In order to extract the pilot signal generated by the pilot generator 370, the canceled signal at the second canceller 361 is coupled to the coupler and applied to the pilot detector 390. The pilot detector 390 includes a mixer as shown, a band selection filter, and a diode. The local oscillator 380 applies a local oscillator signal to the mixer. The frequency downconverted signal from the mixer is applied to the control unit via a band selection filter and a diode. The configuration itself for detecting the pilot signal is a well-known technique, and a detailed description thereof will be omitted.

The control unit 400 controls the phase and gain of the signal applied to the main path and the phase and gain of the distorted signal so that the signal input through the input terminal IN is amplified without the distortion signal and outputted through the output terminal OUT . To this end, the control unit 400 controls the first-order vector modulator 312 and the second-order vector modulator 314.

First, the control unit 400 receives a signal output from the first-order canceller 313 and coupled to the first-order vector modulator 312 in order to ideally control the first-order vector modulator 312. And then outputs a control signal to the first-order vector modulator 312 so that the signal output from the first-order canceller 313 becomes only the distortion signal. Then, the first-order vector modulator 312 adjusts the phase and gain of the input signal distributed to the main path in the distributor 311 according to the control signal of the controller 400.

In addition, the control unit 400 receives the pilot signal detected by the pilot detector 390 to ideally control the secondary vector modulator 314. The amplitude of the pilot signal is then analyzed to output a control signal to the first-order vector modulator 312 so that the distortion signal is canceled in the signal output from the second-order canceller 361. The second vector modulator 314 adjusts the phase and gain of the distortion signal output from the second-order canceller 361 according to the control signal of the controller 400.

As described above, the integrated repeater according to the present invention can perform signal transmission / reception between the second-generation communication repeater and the third-generation communication repeater using a pair of common antennas and another pair of feed lines, And the like. In addition, the second-generation communication repeater and the third-generation communication repeater can solve various problems such as increase in noise due to signal interference between repeaters closely installed in the city center as in the past, and cosmetics.

In addition, the third generation communication repeater circuits are added to the second-generation communication repeater enclosure, and a bulky linear power amplifier is fixedly coupled to the relay enclosure door, which is a free space. Thus, So that the configuration of the third generation communication repeater can be easily implemented in addition to the repeater enclosure. That is, the integrated repeater according to the present invention can be easily implemented.

Also, even if an abnormality occurs in the third-generation linear power amplifier installed in the door of the repeater enclosure, it is installed in the door, not in the main body, so that maintenance and repair are convenient.

According to another aspect of the present invention, even if an abnormality occurs in the second-generation linear power amplifier and the third-generation linear power amplifier installed in the doors of the respective repeater enclosures, it is installed in each door, Maintenance is convenient.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined only by the appended claims.

Claims (10)

delete 1. A repeater comprising: a main body; and a door hinged to the main body, the repeater comprising: a relay for relaying radio signals transmitted and received on a mobile communication system, A second generation communication relay unit for relaying signals according to the second generation communication scheme; A third generation communication relay unit for relaying signals according to a third generation communication scheme; And outputs the signal output from the second generation communication relay unit or the third generation communication relay unit to the base station side antenna by dividing the signal received through the antenna of the base station into the second generation communication relay unit or the third generation communication relay unit, A first duplexer for outputting the first signal; And outputs the signal output from the second-generation communication relay unit or the third-generation communication relay unit to the terminal-side antenna by dividing the signal received through the terminal-side antenna into the second-generation communication relay unit or the third- And a second duplexer for outputting the output signal, The second generation communication repeater unit: A first low noise amplifier (LNA) receiving the signal output from the first duplexer and performing low noise amplification; a first linear power amplifier amplifying the low noise amplified signal from the first low noise amplifier and outputting the amplified signal to the second duplexer; A second low noise amplifier for receiving a signal output from the second duplexer and performing low noise amplification; and a second linear power amplifier for power amplifying the low noise amplified signal in the second low noise amplifier and outputting the amplified signal to the first duplexer , The third generation communication repeater unit: A third low noise amplifier (LNA) receiving the signal output from the first duplexer and performing low noise amplification; a third linear power amplifier amplifying the low noise amplified signal from the third low noise amplifier to output the amplified signal to the second duplexer; A fourth low noise amplifier receiving the signal output from the second duplexer and performing low noise amplification; and a fourth linear power amplifier amplifying the low noise amplified signal from the fourth low noise amplifier to output the amplified signal to the first duplexer, The third linear power amplifier is fixedly coupled to the door, Said third linear power amplifier comprising: A first-order vector modulator for controlling a gain and a phase of a signal distributed to the main path in the distributor, and a second-order vector modulator for power-amplifying a signal whose gain and phase are controlled in the vector modulator A main amplifier, A first delay unit for compensating for a delay time according to a signal amplification of the main amplifier with respect to a signal distributed to the auxiliary path in the distributor and a second delay unit for receiving a signal amplified by the main amplifier, A second order vector modulator for controlling a gain and a phase of the distortion signal canceled by the first order canceller; An error amplifier for amplifying a distortion signal output from the first canceller; a second delay unit for compensating a delay time according to a signal amplification of the error amplifier with respect to a signal amplified and output from the main amplifier; A second canceling unit for canceling a signal amplified and input from the error amplifier from a signal delayed by the second canceling unit, an output unit for outputting a signal canceled by the second canceling unit to the outside, A pilot detector for generating a pilot signal for generating a control input signal for controlling the gain and phase of the distortion signal; a pilot detector for detecting a pilot signal from a signal coupled at the output; And outputs a control signal for controlling the gain and phase of the distortion signal output from the first vector modulator, and outputs the control signal to the second vector modulator in accordance with the pilot signal detected from the pilot detector. And outputs a control signal for controlling a gain and a phase of the received signal. 3. The apparatus of claim 2, wherein the door comprises: And a fan that is partly implemented as a heat sink for dissipating heat of high temperature generated from the third linear power amplifier and is driven to radiate heat of high temperature to the internal space located at the lower end of the heat sink Features integrated repeater. delete delete 1. A repeater comprising: a main body; and a first door and a second door hingedly coupled to the main body, the repeater comprising: A second generation communication relay unit for relaying signals according to the second generation communication scheme; A third generation communication relay unit for relaying signals according to a third generation communication scheme; And outputs the signal output from the second generation communication relay unit or the third generation communication relay unit to the base station side antenna by dividing the signal received through the antenna of the base station into the second generation communication relay unit or the third generation communication relay unit, A first duplexer for outputting the first signal; And outputs the signal output from the second-generation communication relay unit or the third-generation communication relay unit to the terminal-side antenna by dividing the signal received through the terminal-side antenna into the second-generation communication relay unit or the third- And a second duplexer for outputting the output signal, The second generation communication repeater unit: A first low noise amplifier (LNA) receiving the signal output from the first duplexer and performing low noise amplification; a first linear power amplifier amplifying the low noise amplified signal from the first low noise amplifier and outputting the amplified signal to the second duplexer; A second low noise amplifier for receiving a signal output from the second duplexer and performing low noise amplification; and a second linear power amplifier for power amplifying the low noise amplified signal in the second low noise amplifier and outputting the amplified signal to the first duplexer, The first linear power amplifier is fixedly coupled to the first door, The third generation communication repeater unit: A third low noise amplifier (LNA) receiving the signal output from the first duplexer and performing low noise amplification; a third linear power amplifier amplifying the low noise amplified signal from the third low noise amplifier to output the amplified signal to the second duplexer; A fourth low noise amplifier receiving the signal output from the second duplexer and performing low noise amplification; and a fourth linear power amplifier amplifying the low noise amplified signal from the fourth low noise amplifier to output the amplified signal to the first duplexer, The third linear power amplifier is fixedly coupled to the second door, Wherein at least one of the first linear power amplifier and the third linear power amplifier comprises: A first-order vector modulator for controlling a gain and a phase of a signal distributed to the main path in the distributor, and a second-order vector modulator for power-amplifying a signal whose gain and phase are controlled in the vector modulator A main amplifier, A first delay unit for compensating for a delay time according to a signal amplification of the main amplifier with respect to a signal distributed to the auxiliary path in the distributor and a second delay unit for receiving a signal amplified by the main amplifier, A second order vector modulator for controlling a gain and a phase of the distortion signal canceled by the first order canceller; An error amplifier for amplifying a distortion signal output from the first canceller; a second delay unit for compensating a delay time according to a signal amplification of the error amplifier with respect to a signal amplified and output from the main amplifier; A second canceling unit for canceling a signal amplified and input from the error amplifier from a signal delayed by the second canceling unit, an output unit for outputting a signal canceled by the second canceling unit to the outside, A pilot detector for generating a pilot signal for generating a control input signal for controlling the gain and phase of the distortion signal; a pilot detector for detecting a pilot signal from a signal coupled at the output; And outputs a control signal for controlling the gain and phase of the distortion signal output from the first vector modulator, and outputs the control signal to the second vector modulator in accordance with the pilot signal detected from the pilot detector. And outputs a control signal for controlling a gain and a phase of the received signal. 7. The apparatus of claim 6, wherein the first door comprises: Wherein the heat sink for the second generation dissipates heat at a high temperature in an inner space located at a lower end of the second heat sink for the second generation, the heat sink for the second generation radiating heat of high temperature generated from the first linear power amplifier, And a second-generation fan that is driven to rotate the second- Wherein the second door comprises: Generation heat sink for dissipating high-temperature heat generated from the third linear power amplifier, wherein the third-generation heat sink dissipates heat at a high temperature in an inner space located at a lower end of the third- And a third-generation fan driven to rotate the second fan. delete delete 1. A door for an integrated repeater enclosure hinged to a main body of the enclosure, the enclosure including an integrated repeater for relaying radio signals according to second and third generation communication systems transmitted and received on the mobile communication system, And a third-generation linear power amplifier that is fixedly coupled to the inner side of the antenna and that power-amplifies a signal transmitted to the mobile communication terminal through the antenna on the terminal side, A part of the door is realized as a heat radiating plate for radiating high temperature heat generated from the third generation linear power amplifier and a fan driven to radiate heat of high temperature to an internal space located at a lower end of the heat radiating plate , ≪ / RTI > Said third generation linear power amplifier comprising: A first-order vector modulator for controlling a gain and a phase of a signal distributed to the main path in the distributor, and a second-order vector modulator for power-amplifying a signal whose gain and phase are controlled in the vector modulator A main amplifier, A first delay unit for compensating for a delay time according to a signal amplification of the main amplifier with respect to a signal distributed to the auxiliary path in the distributor and a second delay unit for receiving a signal amplified by the main amplifier, A second order vector modulator for controlling a gain and a phase of the distortion signal canceled by the first order canceller; An error amplifier for amplifying a distortion signal output from the first canceller; a second delay unit for compensating a delay time according to a signal amplification of the error amplifier with respect to a signal amplified and output from the main amplifier; A second canceling unit for canceling a signal amplified and input from the error amplifier from a signal delayed by the second canceling unit, an output unit for outputting a signal canceled by the second canceling unit to the outside, A pilot detector for generating a pilot signal for generating a control input signal for controlling the gain and phase of the distortion signal; a pilot detector for detecting a pilot signal from a signal coupled at the output; And outputs a control signal for controlling the gain and phase of the distortion signal output from the first vector modulator, and outputs the control signal to the second vector modulator in accordance with the pilot signal detected from the pilot detector. And outputs a control signal for controlling the gain and the phase of the integrated signal.

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