KR200450596Y1 - The dual band base station communication extension unit - Google Patents

The dual band base station communication extension unit Download PDF

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Publication number
KR200450596Y1
KR200450596Y1 KR2020100005203U KR20100005203U KR200450596Y1 KR 200450596 Y1 KR200450596 Y1 KR 200450596Y1 KR 2020100005203 U KR2020100005203 U KR 2020100005203U KR 20100005203 U KR20100005203 U KR 20100005203U KR 200450596 Y1 KR200450596 Y1 KR 200450596Y1
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South Korea
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auxiliary
amplifier
signal
transmitted
base station
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KR2020100005203U
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Korean (ko)
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허충구
문용길
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주식회사 인피니텍
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15535—Control of relay amplifier gain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a two-band base station communication extension device, which processes signals generated by a user's communication service request and transmits a transmission signal to a user terminal in a different frequency band, respectively, such as a first antenna, a second antenna, and a lightning strike. Antennas formed with first and second lightning protection devices respectively installed on the first and second antennas to prevent damage to the first and second antennas due to the environment, and corresponding first and second transmission signals to match the respective frequency bands. And first and second transmission signals to the second antenna and the received signals transmitted from the first and second antennas, and the received signals are transmitted to the first and second auxiliary amplifiers corresponding to the corresponding frequency bands. Splitter, first and second auxiliary amplifier switches, first and second switches, first and second auxiliary distributors, first and second low noise amplifiers, first and second splitters, first and second combiners, 2 Send a signal from the combiner A main amplifier formed by the first and second high output amplifiers which receive the transmission signal and output the high power amplifier to the first and second sub-distributors, and a controller which is connected to the main amplifier to remotely adjust the main amplifier; Remote control device formed of a light emitting unit, an input unit, and an interface.
The present invention not only amplifies the transmission and reception signals transmitted from the base station by using multiple frequency bands simultaneously using two antennas, but also receives the main signals of the received signals transmitted from antennas using different frequency bands. By amplifying and transmitting by using, the communication range of the base station can be extended while improving the call quality of the transmission signal, and can be installed and used in addition to the existing base station, thereby reducing the cost of installing a separate base station. There is an advantage.

Description

Dual band base station communication extension unit

The present invention relates to a two-band base station communication extension device, and more specifically, to attach a main amplifier to a base station that transmits and receives signals generated when two kinds of communication service users use the communication service. This band base station communication expansion device can expand the communication range of the base station by amplifying the transmission and reception signals so as to transmit and receive each other, and obtain excellent call quality by removing noise signals contained in the received signal weakened by external environment. It is about.

In general, wireless communication services such as mobile phone service and the Internet are allocated and operated with a unique frequency band. When a user uses a mobile phone that he / she carries, a certain transmission and reception signal is generated between the base station and the mobile phone. Will occur.

Then, the signal is transmitted from the cell phone to one of the base stations installed at a certain position in the communication range and transmitted to the receiver through the base station where the corresponding mobile phone requested by the service requester is located through the mobile communication network. Will be.

In this case, since the signal is attenuated by the external environment or the noise is loaded according to the moving distance, a plurality of base stations are installed so that a communication range overlaps each part at a predetermined distance.

In addition, the call range of the base station determines the transmission range according to the electric field strength of the signal transmitted from the base station, and the call quality is determined by the noise index, etc., because when the electric field strength is low, the signal transmission becomes impossible. For better quality service or expansion of communication range, service provider installs a plurality of base stations in a certain region, but it requires considerable cost to newly install base stations.

Thus, as a utility model registration No. 20-0325815, a signal amplifier is installed in an existing base station to amplify a signal transmitted to the base station and transmit it to the outside again.

However, the signal amplifier as described above uses one frequency band without using multiple radio communication frequency bands (eg, various frequency bands such as 900 MHz, 2 GHZ, etc.).

In addition, among the signals transmitted from one base station to one frequency band, the transmission signal is amplified using HPA (High Power Amplifier: power amplifier installed at the end of the wireless transmitter) and the received signal is LNA (Low-Noise Amplifier). : It is used to amplify a weak signal caught by an antenna in a communication system.It is installed near two antennas to reduce attenuation in a transmission line. In case of a signal, the signal is not compensated for the interference of the signal due to the multipath formed by the external environment in which the signal is transmitted (mechanical situation such as an antenna type or weather situation), and thus the signal is not amplified properly. Distortion occurs and the signal weakens to the service requester. There was a problem that can not provide a good service.

The present invention processes the signal generated by the user's communication service request and transmits the transmission signal to the user terminal in different frequency bands, respectively, by external environment such as the first antenna, the second antenna, and the lightning. An antenna having first and second lightning protection devices respectively installed in the first and second antennas to prevent damage, and transmitting transmission signals transmitted from the outside to the corresponding first and second antennas according to respective frequency bands, and The first and second sub-amplifiers transmit the first and second sub-amplifiers to the first and second sub-amplifiers, respectively. Transmit signals from switches, first and second switches, first and second auxiliary dividers, first and second low noise amplifiers, first and second splitters, first and second combiners, and the first and second combiners Receive the signal by high amplifying the output signal A main amplifier formed by the first and second high power amplifiers which are transmitted to the first and second sub-distributors, and a remote controller formed of a controller, a light emitting unit, an input unit, and an interface connected to the main amplifier to remotely adjust the main amplifier; It consists of an adjusting device.

As described above, the present invention amplifies the transmission and reception signals transmitted from the base station by using multiple frequency bands simultaneously using two antennas, as well as receiving transmissions from antennas using different frequency bands. By amplifying and transmitting the signal using the main amplifier, the communication range of the base station can be extended while improving the call quality of the transmission signal, and it can be installed and used in addition to the existing base station. This has the advantage of reducing costs.

In addition, each of the received signals that are introduced through different paths is transferred to the corresponding amplification unit, and the low noise amplification reduces the distortion or interference of the received signals according to the multipath, and thus has the advantage of clearly transmitting the multipath received signals. .

In addition, it is possible to use multiple frequency bands in one base station to provide various services at the same time, as well as to check the status of the transmission and reception signals and the main amplifier from a remote location using a remote device, It is easy to set up a device, and it is easy to maintain, maintain and manage each device, thereby reducing maintenance and management costs, eliminating a lot of manpower, and increasing management efficiency.

1 is a block diagram showing a two-band base station communication expansion apparatus according to the present invention.

Looking at the configuration of the present invention for achieving the above object is as follows.

First, the two-band base station communication expansion device 100 of the present invention is composed of an antenna 10, a main amplifier 20, a remote control device 30 as shown in FIG.

The antenna 10 processes a signal generated by a user's communication service request and transmits a transmission signal to a user terminal in a different frequency band, respectively, such as the first antenna 11, the second antenna 12, and an external device such as a lightning strike. First and second lightning protection devices 13 and 14 are respectively installed on the first and second antennas 11 and 12 to prevent damage to the first and second antennas 11 and 12 due to the environment.

The main amplifier 20 transmits the transmission signal transmitted from the outside to the corresponding first and second antennas 11 and 12 so as to correspond to each frequency band and from the first and second antennas 11 and 12. First and second dividers 21a and 21b which identify and process a received signal to be transmitted, and transmit the received signal to the first and second sub-amplifiers a and b that correspond to the corresponding frequency band, respectively. The first and second auxiliary amplifier switches 22a which receive the received signals of the corresponding frequency bands from among the received signals transmitted to the first and second dividers 21a and 21b, and transmit the received signals to the base station or receive external transmission signals. 22b) transmits the received signal transmitted from the first and second dividers 21a and 21b and receives the transmitted signal from the first and second sub-amplifier switches 22a and 22b. 21b) corresponding frequency bands from the first and second switches 23a and 23b and the first and second switches 23a and 23b for transmitting a transmission signal. First and second sub-distributors 24a and 24b for receiving a signal corresponding to the first and second switches 22a and 22b and transmitting the received signal to the first and second switches 23a and 23b. Receives received signals from the first and second low noise amplifiers 25a and 25b and the first and second low noise amplifiers 25a and 25b to receive the received signals from the first and second auxiliary dividers 24a and 24b and to amplify the low noise. Transmit to the first and second auxiliary amplifier switches 22a and 22b so that the transmission signals transmitted from the first and second auxiliary amplifier switches 22a and 22b are not transmitted to the first and second low noise amplifiers 25a and 25b. The first and second splitters 26a and 26b and the first and second auxiliary amplifier switches 22a and 22b receive the transmission signals transmitted to the first and second splitters 26a and 26b and receive the transmission signals. Receives a transmission signal from the first and second combiners 27a and 27b and the first and second combiners 27a and 27b, and amplifies the transmission signal with high output to provide the first and second auxiliary dividers 24a. , 24b) The first, is formed of a second high-power amplifier (28a, 28b) for.

Here, the first auxiliary amplifier (a) of the main amplifier 20 receives the received signal included in the frequency band of the first antenna 11 through the second antenna 12 through the second divider 21b. After receiving and amplifying and transmitting the received signal to the base station of the corresponding frequency band, the second auxiliary amplifier b receives the received signal included in the frequency band of the second antenna 12 through the first antenna 11. 21a) is received and amplified and transmitted to the base station of the corresponding frequency band, and the first and second auxiliary amplifiers a and b are the first and second auxiliary switches a1 and b1 and the first and second amplifier filters (a). a2, b2), the first and second auxiliary noise amplifiers a3 and a3, the first and second auxiliary amplifiers a4 and b4 and the first and second amplifier switches a5 and b5.

In addition, the first and second combiners 27a and 27b of the main amplifier 20 are transmitted from the first and second auxiliary amplifier switches 22a and 22b and the first and second amplifier switches a5 and b5, respectively. The signal is received and processed, and the first and second high power amplifiers 28a and 28b may be used as multi-carrier power amplifiers (mcpa).

In addition, the remote control device 30 is formed of a control unit 31, a light emitting unit 32, an input unit 33, and an interface 34 which are connected to the main amplifier 20 and can remotely adjust the amplification unit. do.

Looking at the operation according to a preferred embodiment of the present invention having the configuration as described above are as follows.

First, the antenna 10, the main amplifier 20 and the remote control device 30, etc. are installed in a base station installed at an arbitrary point.

In addition, a detailed description of a power supply device (not shown) for applying power to each device is omitted.

In addition, although the first and second antennas 11 and 12 may use the same frequency band, the first and second antennas 11 and 12 may use various frequency bands to provide various types of communication services. It is preferable to set different frequency bands for the antennas 11 and 12, respectively.

For example, the first antenna 11 is to use a frequency band of approximately 900MHZ band, the second antenna 12 is to use a frequency band of 2GHZ band.

The frequency band transmitted to each of the antennas 11 and 12 may be variously selected depending on the setting of the communication service provider.

In addition, the first and second antennas 11 and 12 process the transmission and reception signals corresponding to the respective frequency bands, and the transmission signals are processed by the transmission signals of the frequency bands corresponding to the first and second antennas 11 and 12, respectively. In addition, the received signal is processed at the same time, and the received signal of the other frequency band and the signal corresponding to the respective frequency bands, which are generally generated in the antenna 10 using the other frequency band at the same time, detailed description thereof will be omitted.

Here, the transmission signal and the reception signal are processed by the user in the antenna 10 and the base station, and the transmission signal is transmitted by the first and second auxiliary amplifier switches 22a and 22b and the first and second amplifier switches a5 and b5 at the base station. ) Is transmitted to the antenna 10 through the first and second switches 23a and 23b and the first and second auxiliary switches a1 and b1, and the received signal is transmitted from the antenna 10 to the first and second switches. It is transmitted to the base station via the first and second auxiliary amplification switches 22a and 22b and the first and second amplification switches a5 and b5 via 23a and 23b and the first and second auxiliary switches a1 and b1. .

First, a base station in a 900 MHZ band, which is a first frequency band, passes through a first auxiliary switch 22a and a first amplifying switch a5 to a first antenna through a first switch 23a and a first auxiliary switch a1. Referring to the operation of the transmission signal transmitted to 11), the transmission signal of 900MHZ band is transmitted from the base station to the first auxiliary amplifier switch 22a and the first amplifier switch a5.

Thereafter, a transmission signal is transmitted from the first auxiliary amplifier switch 22a to the first splitter 26a, and then transmitted from the first splitter 26a to the first combiner 27a.

At the same time, the transmission signal transmitted from the base station to the first amplification switch a5 is also transmitted to the first combiner 27a through the first auxiliary splitter a4.

Here, the first splitter 26a and the first auxiliary splitter a4 do not transmit the transmission signals transmitted to the first auxiliary amplifier switch 22a and the first amplifier switch a5 to other paths. It acts to flow only to the first combiner 27a, and the transmission and reception signals simultaneously transmitted to the first auxiliary amplifier switch 22a and the first amplifier switch a5 are transmitted through different paths to This is to prevent distortion or attenuation.

Then, the first auxiliary amplifier switch 22a and the first amplifier switch a5 are transmitted to the first combiner 27a through the first splitter 26a and the first auxiliary splitter a4. When the signal is coupled by the operation of the first combiner 27a and transmitted to the first high output amplifier 28a, the first high output amplifier 28a amplifies the transmission signal with a high output and the first auxiliary distributor 24a. Will be sent to.

In addition, the first high power amplifier (28a) is a multi-carrier power amplifier (MCPA) capable of simultaneously processing a multi-channel frequency per one device than a high power amplifier (HPA :) commonly used among various types of amplifiers : Multi-carrier power amplifier. A multi-carrier power amplifier that minimizes the distortion of radio signals and can transmit multiple carriers at low power signal level. Therefore, it is possible to amplify multiple channels with one amplifier without the need for a separate power amplifier for each carrier. Say).

Here, when a transmission signal is transmitted to the first high output amplifier 28a through the first auxiliary amplifier switch 22a, the first high output amplifier 28a is always checked to determine an operating state of the first high output amplifier 28a. Is normally operated, the transmission signal inputted through the first auxiliary amplifier switch 22a is transmitted to the first high power amplifier 28a to amplify the corresponding transmission signal with a high output power, so that the first auxiliary distributor 24a and the first switch 23a are operated. However, when the first high power amplifier 28a does not operate normally, the first auxiliary amplifier switch 22a transmits a transmission signal to the first high power amplifier 28a. Instead, the first switch 23a is directly transmitted to the first antenna 11 without amplifying the corresponding transmission signal, so that the transmission signal is not interrupted even if the first high power amplifier 28a is not operated. To be transmitted via.

In addition, even if the first high output amplifier 28a is normally operated, the first auxiliary amplifier switch 22a transmits a signal transmitted from the manager to the first auxiliary amplifier switch 22a through the remote control device 30 at a remote location. Instead of transmitting to the first high output amplifier 28a, it may be set to transmit directly to the first switch 23a.

Thereafter, the transmission signal transmitted from the first high output amplifier 28a to the first auxiliary distributor 24a is transmitted to the first distributor 21a via the first switch 23a.

In addition, the first distributor 21a is to be transmitted to the user terminal (not shown in the drawing) through the first antenna 11.

In this case, the transmission signal transmitted through the first antenna 11 is amplified by the high output power from the first auxiliary amplifier switch 22a and the first amplifier switch a5 through the first high output amplifier 28a to thereby transmit the electric field of the transmission signal. By increasing the strength, the transmitted signal is transmitted to a wider area without attenuation.

In addition, the base station in the 2GHZ band, which is the second frequency band, passes through the second switch 23b and the second auxiliary switch b1 through the second auxiliary amplifier switch 22b and the second amplifier switch b5, and then through the second antenna (b1). The transmission signal transmitted to 12 is also transmitted in the same manner as above.

On the other hand, from the first antenna 11 of the 900MHZ band, which is the first frequency band, through the first switch 23a and the first auxiliary switch a1 to the first auxiliary amplifier switch 22a and the first amplifier switch a5. Referring to the operation of the transmitted signal, the first antenna 11 receives a signal of the 900MHZ band of the first frequency band and the 2GHZ band of the received signal is simultaneously input.

In addition, as described above, it is obvious that the received signal of the 900 MHZ band, which is the first frequency band, and the received signal of the 2 GHZ band, which is the second frequency band, are simultaneously input to the second antenna 12 as well.

Then, the received signals input to the two frequency bands input through the first antenna 11 are transmitted to the first divider 21a, and the first frequency band among the received signals transmitted to the first divider 21a. The received signal of the 900MHZ band is transmitted to the first switch 23a, and the received signal of the 2GHZ band, which is the second frequency band, is transmitted to the second auxiliary switch b1 of the second auxiliary amplifier b.

The received signal of the first frequency band transmitted from the first divider 21a to the first switch 23a is transmitted to the first auxiliary divider 24a and the first low noise amplifier from the first auxiliary divider 24a. The reception signal is transmitted to 25a.

Then, the first low noise amplifier 25a amplifies the received signal input through the first antenna 11 to low noise and transmits the received signal to the first splitter 26a.

Here, the first low noise amplifier 25a is a low noise amplifier (LNA) that is generally used, and thus detailed description thereof will be omitted.

In addition, the received signal transmitted to the first splitter 26a is transmitted to the first auxiliary amplifier switch 22a and then transmitted from the first auxiliary amplifier switch 22a to the base station.

In addition, when the received signal is transmitted from the first low noise amplifier 25a to the first auxiliary amplifier switch 22a, the first splitter 26a does not transmit the received signal to the first combiner 27a. In this case, the first auxiliary amplifier switch 22a receives a transmission signal from the base station and transmits the signal to the first combiner 27a, and from the first low noise amplifier 25a to the first auxiliary amplifier switch (a). The reception signal is input to the first auxiliary amplifier switch 22a so that the reception signal is inputted to the first auxiliary amplifier switch 22a so that the transmission signal and the reception signal are not transmitted in a staggered manner. 27a) transmits a transmission signal and serves to properly transmit the reception signal from the first low noise amplifier 25a to the first auxiliary amplifier switch 22a.

This is to prevent the transmission signal and the reception signal from being transmitted to each other so that attenuation and distortion of the signal do not occur.

On the other hand, when the reception signal is transmitted from the first divider 21a to the first switch 23a, when the operating state of the first low noise amplifier 25a is abnormal, the first subsidiary switch 23a is provided with the first auxiliary signal. By not transmitting the received signal to the splitter 24a and the first low noise amplifier 25a, the first switch 23a is directly transmitted to the first auxiliary amplifier switch 22a to transmit the signal without amplifying the received signal. Allow the received signal to be transmitted continuously without interruption.

In addition, even if the first low noise amplifier 25a operates normally, the remote control device may set the reception signal to be directly transmitted from the first switch 23a to the first auxiliary amplifier switch 22a through the remote control device 30 at the remote location. It may be.

In addition, among the received signals of the first and second frequency bands transmitted from the first antenna 11 to the first divider 21a, the received signal of the first frequency band is transmitted to the first switch 23a and received as described above. The signal flows, and the signal of the second frequency band is transmitted by the first divider 21a to the second auxiliary switch b1 of the second auxiliary amplifier b.

Then, the received signal of the second frequency band is transmitted from the second auxiliary switch (b1) to the second amplification filter (b2) to filter the noise and the like carried on the received signal by the second amplification filter (b2) After a low noise amplification of the received signal of the second frequency band by transmitting to the second auxiliary low noise amplifier (b3), the second auxiliary noise amplifier (b3) through the second auxiliary splitter (b4) through the second amplifier switch (b5) ) To transmit to the base station through the second amplification switch (b5).

In addition, the received signal that has passed through the second auxiliary low noise amplifier b3 is filtered with noise and the like, and thus the quality of the received signal is excellent.

In addition, the second auxiliary splitter b4 has a second receiving signal transmitted from the second auxiliary switch b5 to the second amplifying switch b5 via the second auxiliary low noise amplifier b3. The transmission signal transmitted from the base station to the second amplification switch b5 is not transmitted to the second auxiliary low noise amplifier b3 without being transmitted to the combiner 27b. By transmitting to the second combiner 27b, the transmission signal and the reception signal overlap with each other so that the transmission signal and the reception signal are not alternately transmitted to the second auxiliary noise amplifier b3 or the second high output amplifier 28b. This prevents distortion or attenuation of the signal.

In addition, the received signal of the second frequency band among the received signal of the first frequency band and the received signal of the second frequency band input through the second antenna 12, the second divider 21b and the second switch 23b. The second auxiliary amplifier switch 22b is transmitted to the base station, and the received signal of the first frequency band is transmitted to the first auxiliary switch a1 of the first auxiliary amplifier a through the second divider 21b. And is transmitted to the first amplification switch a5 in the manner described above.

In addition, the received signal of the second frequency band introduced through the second antenna 12 is processed in the same manner as the received signal of the first frequency band input through the first antenna 1 as described above.

On the other hand, when each of the transmission signal and the reception signal is transmitted to the first and second dividers via the first and second antennas, the first and second lightning protection devices 13 and 14 are transmitted. (13, 14) is to prevent the damage of the first and second antennas (11, 12) to the external environment, such as a lightning strike, which is a general matter and will not be described in detail.

In this way, by simultaneously processing the multiple frequency bands in one base station to increase the use efficiency of the base station, as well as receiving signals of other frequency bands in addition to the frequency band corresponding to each antenna 10, respectively corresponding to the first, The second and second auxiliary amplifiers (a and b) are transmitted, and the first and second auxiliary amplifiers (a and b) amplify the received signals through the first and second low noise amplifiers (25a and 25b) to receive the corresponding received signals. Transmits the signal to the base station without distortion or attenuation of the signal to improve call quality, and transmits the signal transmitted from the base station to the first and second auxiliary amplifier switches 22a and 22b and the first and second amplifier switches a5 and b5. Amplifies the transmission signal through the first and second high power amplifiers 28a and 28b capable of amplifying multiple channels so that the transmission signal can be transmitted from the antenna 10 to the user terminal in a wider area. Base stations can take advantage of a wider communication range By doing so, the communication service provider does not need to install a plurality of expensive base stations to overlap each other, so that the economy is excellent.

In addition, the received signals input through the first and second antennas 11 and 12 are first and second through the first and second low noise amplifiers 25a and 25b and the first and second auxiliary noise amplifiers a3 and b3. Through the auxiliary amplifier switches 22a and 22b and the first and second amplifier switches a5 and b5 to be transmitted to the base station, the noise contained in the received signal input through the first and second antennas 11 and 12 may be removed. Filter to improve call quality.

In addition, by using the remote control device 30 to allow the administrator to manage the main amplifier 20 even at a remote location, it is possible to increase the efficiency of the workforce.

Here, the control unit 31 formed in the remote control device 30 is a device for controlling the remote control device 30 as a whole, the light emitting unit 32 is a light emitting diode to display the state of the remote control device 30 Various types of devices such as a liquid crystal display (LCD) and a liquid crystal display (LCD) may be used, and the input unit 33 uses a device such as a keyboard (not shown). Directly move to the base station where the antenna or main amplifier, etc. is installed to allow the administrator to directly set up the equipment at the location, the interface 34 is used to connect a communication device that can communicate with the outside as detailed description Omit it.

10 antenna 11: first antenna
12: second antenna 13: the first lightning protection device
14: second lightning protection device 20: main amplifier
21a, 21b: 1st, 2nd divider 22a, 22b: 1st, 2nd auxiliary amplifier switch
23a, 23b: 1st, 2nd switch 24a, 24b: 1st, 2nd sub distributor
25a, 25b: first and second low noise amplifiers 26a, 26b: first and second splitters
27a, 27b; First and second combiners 28a, 28b: First and second high power amplifiers
30: remote control device 31: control unit
32: light emitting unit 33: input unit
34: interface a, b: first and second auxiliary amplifier
a1, b1: 1st, 2nd auxiliary switch a2, b2: 1st, 2nd amplification filter
a3, b3: first and second auxiliary noise amplifier a4, b4: first and second auxiliary analyzer
a5, b5: first and second amplifier switch
100: EBS base station communication expansion device

Claims (5)

The first antenna 11 and the second antenna 12 which process the signal generated by the user's communication service request and transmit the transmission signal to the user terminal in different frequency bands, respectively. An antenna 10 having first and second lightning protection devices 13 and 14 installed on the first and second antennas 11 and 12 to prevent breakage of the second antennas 11 and 12;
Transmits the transmission signal transmitted from the outside to the corresponding first and second antennas 11 and 12 to match each frequency band, and identifies and processes the received signal transmitted from the first and second antennas 11 and 12, In addition to the frequency band, the first and second dividers 21a and 21b and the first and second dividers 21a and 21b transmit received signals to the first and second sub-amplifiers a and b respectively corresponding to the corresponding frequency band. The first and second dividers are transmitted to the first and second sub-amplifier switches 22a and 22b which receive the received signals of the corresponding frequency bands from among the received signals transmitted through), and transmit the received signals to the base station or receive external transmission signals. A first signal for transmitting the received signal transmitted from the first and second auxiliary amplifier switches 22a and 22b and transmitting the transmitted signal to the first and second dividers 21a and 21b. And receiving signals corresponding to the frequency bands from the two switches 23a and 23b and the first and second switches 23a and 23b. First and second auxiliary distributors 24a and 24b for transmitting transmission signals received from the first and second auxiliary switches 22a and 22b to the first and second switches 23a and 23b, and the first and second auxiliary distributors 24a. 24b) receives the received signal from the first and second low noise amplifiers 25a and 25b and the first and second low noise amplifiers 25a and 25b to amplify the low noise. First and second splitters 22a and 22b to process the transmission signals transmitted from the first and second auxiliary amplifier switches 22a and 22b not to be transmitted to the first and second low noise amplifiers 25a and 25b. 26a, 26b) and the first and second comb receiving the transmission signals transmitted to the first and second splitters 26a and 26b via the first and second auxiliary amplifier switches 22a and 22b and processing the transmission signals. A transmission signal received from the binners 27a and 27b and the first and second combiners 27a and 27b, and amplifying the transmission signal to a high output to be transmitted to the first and second auxiliary distributors 24a and 24b. 1, 2 high power amplifier (28a) A main amplifier 20 formed of 28b);
It is composed of a remote control device 30 formed of a control unit 31, the light emitting unit 32, the input unit 33, the interface 34 which is connected to the main amplifier 20, and can remotely adjust the main amplifier. Characteristic two-band base station communication expansion device.
The second auxiliary amplifier (a) of the main amplifier (20) according to claim 1, wherein the received signal included in the frequency band of the first antenna (11) through the second antenna 12, the second divider ( 21b) is received and amplified and transmitted to the base station of the corresponding frequency band, the second auxiliary amplifier (b) through the first antenna 11 receives the signal included in the frequency band of the second antenna 12 A two-band base station communication extension device characterized in that the signal is transmitted through a splitter (21a) and amplified and transmitted to a base station of a corresponding frequency band.
The first auxiliary amplifier (a) formed in the main amplifier (20) transmits a reception signal of a frequency band belonging to the first antenna (11) among the signals input to the second antenna (12). The first auxiliary switch a1 and the receiving signal received from the first auxiliary switch (a1) and the first amplification filter (a2) to filter the received signal received from the first amplification filter (a2) to receive a low noise A first auxiliary splitter (a4) receives a received signal from the first auxiliary low noise amplifier (a3) and the first auxiliary low noise amplifier (a3) to amplify the signal so that the received signal is not transmitted to the first combiner (27a). And a first amplifier switch (a5) for receiving the signal transmitted to the base station through the first auxiliary switch (a4) does not transmit the transmission signal received from the base station to the first auxiliary low noise amplifier (a3). And is configured to transmit only the first combiner 27a, and the second auxiliary amplifier unit ( b) is a second auxiliary switch (b1) receiving the received signal of the frequency band belonging to the second antenna 12 of the signal input to the first antenna 11 and the second auxiliary switch (b1) A second auxiliary noise amplifier (b3) and a second auxiliary low noise amplifier (b3) receiving and filtering the received signal from the second amplification filter (b2) and the second amplifying filter (b2) and receiving low noise. A second amplification switch b5 for receiving the received signal from the second auxiliary splitter b4 and receiving the received signal from the second combiner 27b and transmitting the received signal to the base station. And the second auxiliary splitter b4 is configured to transmit the transmission signal received from the base station only to the second combiner 27b without transmitting to the second auxiliary noise amplifier b3. Device.
4. The first and second combiners 27a and 27b of the main amplifier 20 are provided with first and second auxiliary amplifier switches 22a and 22b and first and second amplifier switches a5 and b5. A two-band base station communication expansion device characterized by receiving and processing a transmission signal from each other.
2. The apparatus of claim 1, wherein the first and second high power amplifiers (28a, 28b) of the main amplifier unit (20a, 28b) use a multi-carrier power amplifier (mcpa).
KR2020100005203U 2010-05-18 2010-05-18 The dual band base station communication extension unit KR200450596Y1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060087696A (en) * 2005-01-31 2006-08-03 (주)에프알텍 Device for expanding antenna of the wireless repeater
WO2008150534A2 (en) * 2007-06-01 2008-12-11 Nextivity, Inc. Short range booster and methods for boosting with multiple antennas
KR20100011297A (en) * 2008-07-24 2010-02-03 알트론 주식회사 Optical repeating system for multiple band at mobile telecommunication network
KR20100040497A (en) * 2008-10-10 2010-04-20 세원텔레텍 주식회사 Multi-band repeater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060087696A (en) * 2005-01-31 2006-08-03 (주)에프알텍 Device for expanding antenna of the wireless repeater
WO2008150534A2 (en) * 2007-06-01 2008-12-11 Nextivity, Inc. Short range booster and methods for boosting with multiple antennas
KR20100011297A (en) * 2008-07-24 2010-02-03 알트론 주식회사 Optical repeating system for multiple band at mobile telecommunication network
KR20100040497A (en) * 2008-10-10 2010-04-20 세원텔레텍 주식회사 Multi-band repeater

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