KR20120081466A - Method for providing in-building service by using wideband coupler, in-building system and wideband coupler therefor - Google Patents

Abstract

PURPOSE: A method for providing in-building service by using wideband coupler is provided to radiate existing signal and signal in a new frequency band by coupling the wideband coupler with a signal relaying device. CONSTITUTION: A signal relay device(110) amplifies a signal in a specific frequency band which is received from a signal transmission unit. A wideband coupler(120) receives a signal in a plurality of frequency bands from the signal relay device through a plurality of input ports. The wide band coupler passes a preset frequency band signal by each input ports. An in-building relay unit(130) transmits the output signal of the wideband coupler.

Description

Method for Providing In-Building Service By Using Wideband Coupler, In-Building System And Wideband Coupler Therefor}

One embodiment of the present invention relates to an in-building service method using a broadband combiner, an in-building system and a broadband combiner therefor. More specifically, in order to efficiently serve a specific frequency band by using the aerial infrastructure of an in-building relay device installed in a building, a broadband coupler is coupled to a signal relay device and is already being serviced through a pre-installed feeder and an antenna. In-building service method using broadband combiner that can provide service for specific frequency band without laying separate cable and antenna by radiating signal and frequency band signal to be newly serviced, and in-building system and broadband combiner therefor It is about.

The contents described in this section merely provide background information on the embodiment of the present invention and do not constitute the prior art.

Recently, the demand for wireless Internet is increasing due to the emergence of smart phones and the introduction of unlimited data plans by telecommunication companies. As a result, carriers are building new frequency band networks to cover areas with a larger population, in addition to the network of frequency bands being serviced to accommodate additional data capacity and ensure faster data rates.

However, infrastructure for servicing a frequency band corresponding to an alternative network for effectively distributing data traffic is absolutely insufficient compared to a mobile communication network. In particular, in the case of high-rise large buildings with a large number of internal partitions (partitions), where equipment is difficult to receive external radio waves, equipment or antennas connected to it must be installed for every space divided by partitions. Since this building usually requires as much as thousands of meters, there is a problem that it takes a lot of time and money to establish coverage of the new frequency band.

In order to solve the above problems, an embodiment of the present invention, an in-building service method using a broadband combiner that can provide a service for a specific frequency band by additional installation of a broadband combiner without installing a separate cable and antenna and Its main purpose is to provide in-building systems and broadband combiners.

In order to achieve the above object, an embodiment of the present invention, a signal relay device for amplifying and transmitting a signal of a specific frequency band received from the signal transmission device; Receives a plurality of frequency band signals from the signal relay device through a plurality of input ports, and processes only one signal of a predetermined frequency band according to each of the input ports to pass. A wideband combiner for outputting the processed signal through; And an in-building relay device for receiving the output signal from the broadband combiner and transmitting the output signal.

In addition, according to another object of the present invention, a signal relay device for amplifying and transmitting any one of the Wi-Fi signal and the LTE signal received from the signal transmission device; After receiving the Wi-Fi signal through the input port for the Wi-Fi signal, after receiving the LTE signal through the input port for the LTE signal and processing to pass only the signal of the preset frequency band according to each of the input port A wideband combiner for outputting the processed signal through an output port provided; And an in-building relay device for receiving the output signal from the broadband combiner and transmitting the output signal.

In addition, according to another object of the present invention, the input unit for receiving a signal of a plurality of frequency bands through a plurality of input ports provided; A processing unit which processes only signals of a predetermined frequency band to pass according to each of the input ports; And an output unit for outputting the processed signal through the provided one output port.

In addition, according to another object of the present invention, the step of amplifying and transmitting a signal of a specific frequency band received from the signal transmission device in the signal relay device; Receiving signals of a plurality of frequency bands from the signal relay device through a plurality of input ports provided in a broadband combiner; Processing only the signals of a predetermined frequency band according to each of the input ports in the broadband combiner and outputting the processed signals through one output port; And receiving the output signal from the in-building relay device, and transmitting the output signal.

As described above, according to an embodiment of the present invention, in order to efficiently service a specific frequency band by using an aerial infrastructure of an in-building relay device installed in a building, a feeder line is installed by combining a broadband combiner with a signal relay device. Through the and antenna, the existing service signal and the frequency band signal to be newly serviced can be radiated together.

In addition, according to an embodiment of the present invention, since it is possible to jointly utilize the infrastructure of the relay device of the frequency band being serviced inside the large building, there is no need to install a separate cable and antenna for the frequency band to be newly serviced, It is effective to provide service.

In addition, according to an embodiment of the present invention, not only can the cable laying cost according to the frequency band to be newly serviced be reduced, but also the broadband in the space where the signal relay is installed without having to open and close the ceiling as in the prior art. The additional installation of the combiner has the effect of transmitting a signal of the frequency band to be newly serviced.

1 is a block diagram schematically illustrating an inbuilding system using a broadband combiner according to an embodiment of the present invention;
2 is a block diagram schematically illustrating a broadband combiner according to an embodiment of the present invention;
3 is a flowchart illustrating an inbuilding service method using a broadband combiner according to an embodiment of the present invention;
4 is an exemplary view showing a broadband combiner according to an embodiment of the present invention;
5 is a block diagram schematically illustrating an internal module of a broadband coupler according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings an embodiment according to the present invention will be described in detail.

1 is a block diagram schematically illustrating an inbuilding system using a broadband combiner according to an embodiment of the present invention.

In-building system using a broadband combiner according to an embodiment of the present invention includes a signal relay device 110, a broadband combiner 120 and the in-building repeater 130. Meanwhile, in one embodiment of the present invention, the in-building system using the broadband combiner is described as including only the signal relay device 110, the broadband combiner 120 and the in-building relay device 130, which is one of the present invention. As merely illustrative of the technical spirit of the embodiment, those skilled in the art to which one embodiment of the present invention belongs to an in-building system using a broadband coupler without departing from the essential characteristics of one embodiment of the present invention Various modifications and variations to the components included in the will be applicable.

The signal relay device 110 refers to a device for amplifying a signal of a specific frequency band received from a signal transmission device and transmitting the amplified signal to the broadband combiner 120. Here, the signal transmitting device refers to a device for transmitting a signal for voice or data communication. That is, the signal transmission apparatus performs baseband signal processing, wireless signal transmission and reception, and is connected with a communication network to perform services such as voice communication service, wireless data service, wireless internet service, video call or message service. Perform the function. Meanwhile, the signal relay device 110 receives a signal of at least one or more frequency bands of a signal of a first frequency band, a signal of a second frequency band, a signal of a third frequency band, and a signal of a fourth frequency band from a signal transmitting device. Amplify and transmit.

Here, the signal of the first frequency band may be preferably a code division multiple access (CDMA) signal or a PCS signal. Here, the CDMA signal is a frequency band of 800 MHz to 999 MHz and the PCS signal is a signal of 1,700 MHz to 1,899 MHz, and more specifically, some frequency bands used for the uplink among the CDMA bands have a frequency band of 824 MHz to 849 MHz. In some frequency bands used for the downlink, a frequency band of 869 MHz to 894 MHz may be used. In addition, the signal of the second frequency band may be a wideband code division multiple access (WCDMA) signal. Here, the WCDMA signal is a signal of a frequency band of 1,900 MHz to 2,199 MHz, and more specifically, some frequency bands used for the uplink among the WCDMA bands may use frequency bands of 1,930 MHz to 1,960 MHz and 1,960 MHz to 1,980 MHz. In addition, some frequency bands used for the downlink may be a frequency band of 2,120 MHz to 2,150 MHz, 2,150 MHz to 2,170 MHz.

In the present embodiment, the signal of the first frequency band is a CDMA signal or a PCS signal, and the signal of the second frequency band is described as a WCDMA signal, but this is merely illustrative of the technical idea of the present invention. Those skilled in the art to which the present invention belongs, the first frequency band or the second frequency band is a signal for short-range communication (RFID, Zigbee, Bluetooth), wired and wireless broadcast signals, without departing from the essential characteristics of the present invention, It may include any one of a satellite broadcast signal and an IPTV (Internet Protocol Television) signal, and may be variously modified and modified.

In addition, the signal of the third frequency band may be preferably a wireless-fidelity (Wi-Fi) signal. Here, the Wi-Fi signal is a signal in the frequency band of 2,400 MHz to 2,499 MHz. Wi-Fi is a set of technologies that supports IEEE 802.11-based wireless LAN connection, device-to-device (Wi-Fi P2P), and PAN / LAN / WAN configuration. In other words, since Wi-Fi is supported by many operating systems and terminals, mobile phones, PDAs, desktops, notebook computers, netbooks, game consoles, printers, and some peripheral devices such as printers perform Wi-Fi communication. do. In addition, the signal of the fourth frequency band may be preferably a Long Term Evolution (LTE) signal. Here, the LTE signal refers to a signal corresponding to a predetermined specific area, but the frequency band that is considered to be applied as an LTE signal may be a signal of 700 MHz to 799 MHz, a signal of 800 MHz to 999 MHz, and 2,100 MHz to 2,199 MHz. . More specifically, the frequency band of 834 MHz to 839 MHz, 905 MHz to 915 MHz, 884 MHz to 889 MHz may be used for some frequency bands used for the uplink of the LTE band, and some frequency bands used for the downlink may be used. Frequency bands of 879 MHz to 884 MHz, 950 MHz to 960 MHz, and 889 MHz to 894 MHz may be used. Of course, this is merely illustrative of the technical idea of the present invention, LTE signal may be set to a specific frequency band according to the LTE demand of the frequency band assigned to each carrier.

Broadband combiner 120 according to an embodiment of the present invention transmits a plurality of frequency band signals received from signal relay device 110 to in-building relay device 130 through one port. That is, the broadband combiner 120 receives signals of a plurality of frequency bands from a signal relay device through a plurality of input ports, and processes them so that only signals of a predetermined frequency band pass through the input ports. Outputs the processed signal through one output port. The broadband combiner 120 may include a first input port for receiving a signal of a first frequency band, a second input port for receiving a signal of a second frequency band, and a third input port for receiving a signal of a third frequency band And at least one input port among fourth input ports for receiving a signal of a fourth frequency band. The broadband combiner 120 includes a reception (Rx) and a transmission (Tx) band pass filter (BPF) that allow only signals of a predetermined frequency band to pass.

The inbuilding repeater 130 receives a signal output from the broadband combiner 120 and transmits the output signal into the inbuilding building through an antenna provided with the output signal. That is, the in-building relay device 130 is an in-building communication system built to accommodate subscribers in a shadowed area or a hearing loss area in a specific building. The in-building relay device 130 receives a signal received from a wireless relay device from a coaxial cable or an optical line. By improving the wireless environment, such as expanding the serviceable area by transmitting to any place in the building through. In addition, the in-building relay device 130 is a cable (feeder) and an antenna to provide a good signal received from the outside in the building to supplement the wireless environment of the wired or wireless communication network inside the building or building. The concept includes the infrastructure environment installed in the shaded area. The inbuilding relay device 130 is a signal of a first frequency band, a signal of a second frequency band, a third frequency through a cable composed of one line distributed to each floor in the inbuilding, and an antenna for transmitting and receiving signals with the cable. A signal of at least one or more frequency bands is transmitted from the signal of the band and the signal of the fourth frequency band.

For example, a case in which a third frequency band and a fourth frequency band are newly serviced in a building in which an in-building relay device serving only the first frequency band and the second frequency band is installed will be described below. For example, the in-building relay 130 shown in FIG. 1 serves only the first frequency band and the second frequency band, and cables and antennas serving the first frequency band and the second frequency band are already present in each floor of the building. It is assumed that it is installed closely in the vicinity of the space to serve. In general, the routing route of the cable and antenna for servicing the third and fourth frequency bands to be newly serviced is almost the same as the routing route of the cable and antenna for servicing the first and second frequency bands. In particular, when the third frequency band is Wi-Fi, since a cable must be connected from the plurality of ports of the L2 switch to the access point (AP), the routing route of the cable for servicing the third frequency band is the first frequency. The overlapping route of the cable serving the band and the second frequency band frequently occurs. Therefore, it is not possible to use cables and antennas serving the existing first and second frequency bands, and to newly build infrastructures (cables and antennas) to service the third and fourth frequency bands. Due to the high cost and time consuming.

However, when the broadband combiner 120 according to an embodiment of the present invention is applied to an existing infrastructure, cables and antennas need not be newly installed to service the third frequency band and the fourth frequency band. That is, the third frequency band and the fourth frequency band can be serviced inside the building by using an infrastructure such as an antenna and a cable connected to the existing relay device serving the first frequency band and the second frequency band.

For example, assuming that the third frequency band is a Wi-Fi signal, a frequency mainly used by the AP output is a 2.4 GHz band, and assuming that the fourth frequency band is an LTE signal, a separate service is provided to service Wi-Fi and LTE. Wi-Fi and LTE can be serviced using cables, antennas, and splitters connected to relay devices that service the first and second frequency bands without the need to install and install cables and antennas. In particular, if the first frequency band is assumed to be a CDMA signal and the second frequency band is assumed to be a WCDMA signal, Wi-Fi and LTE can be serviced using only cables and antennas capable of passing the frequency bands of CDMA and WCDMA. . More specifically, the first and second frequency bands as well as the relay device that can service the third frequency band and the fourth frequency band after installing the respective input ports and one If the broadband coupler 120 having an output port that can be combined to export to the output of the additional installation, it is possible to service the third frequency band and the fourth frequency band.

2 is a block diagram schematically illustrating a broadband combiner according to an embodiment of the present invention.

The broadband combiner 120 according to an embodiment of the present invention includes an input unit 210, a processor 220, and an output unit 230. Meanwhile, in one embodiment of the present invention, the broadband combiner 120 includes only the input unit 210, the processing unit 220, and the output unit 230, but this is illustrative of the technical spirit of an embodiment of the present invention. As just described, those of ordinary skill in the art to which an embodiment of the present invention belongs will vary with respect to the components included in the broadband combiner 120 without departing from the essential characteristics of the embodiment of the present invention. Modifications and variations will be applicable.

The input unit 210 receives signals of a plurality of frequency bands through a plurality of input ports. The input unit 210 may include a first input port for receiving a signal of a first frequency band from a signal relay device, a second input port for receiving a signal of a second frequency band from the signal relay device 110, and a signal relay device ( At least one input port of the third input port for receiving the signal of the third frequency band from the 110, and the fourth input port for receiving the signal of the fourth frequency band from the signal relay device (110).

The processor 220 processes only signals of a predetermined frequency band to pass through each input port. The processor 220 receives and transmits a signal of a predetermined frequency band in a signal received according to at least one input port among the first input port, the second input port, the third input port, and the fourth input port. It includes a bandpass filter. The output unit 230 outputs the processed signal through the one output port provided. The output unit 230 may include an in-building relay device configured to output at least one of a signal of a first frequency band, a signal of a second frequency band, a signal of a third frequency band, and a signal of a fourth frequency band through one output port. 130).

3 is a flowchart illustrating an in-building service method using a broadband combiner according to an embodiment of the present invention.

The signal relay device 110 amplifies a signal of a specific frequency band received from a signal transmission device for transmitting a signal for voice or data communication and transmits it to the broadband combiner 120 (S310). On the other hand, the signal relay 110 is a signal of the first frequency band corresponding to the CDMA signal or PCS signal, the signal of the second frequency band corresponding to the WCDMA signal, the signal of the third frequency band corresponding to the WiFi signal from the signal transmitting device Receives, amplifies, and transmits a signal of at least one or more frequency bands among signals of a fourth frequency band corresponding to the signal and the LTE signal.

The broadband combiner 120 receives signals of a plurality of frequency bands from the signal relay device 110 through a plurality of input ports (S320). Here, the broadband combiner 120 may include a first input port for receiving a signal of a first frequency band, a second input port for receiving a signal of a second frequency band, and a third for receiving a signal of a third frequency band At least one input port of the input port and the fourth input port for receiving a signal of the fourth frequency band is provided. That is, the broadband combiner 120 receives signals of a plurality of frequency bands through a plurality of input ports. More specifically, the broadband combiner 120 receives a signal of a first frequency band from the signal relay device 110 using a first input port, and uses the second input port to signal the relay device 110. A signal of the second frequency band is input from the signal receiver, a signal of the third frequency band is received from the signal relay device 110 using the third input port, and the signal is input from the signal relay device 110 using the fourth input port. Can receive signals of 4 frequency bands. If the signal of the first frequency band is assumed to be a CDMA signal or a PCS signal, the signal of the second frequency band is assumed to be a WCDMA signal, the signal of the third frequency band is assumed to be a Wi-Fi signal, and the fourth Assuming that the signal of the frequency band is an LTE signal, the broadband combiner 120 receives at least one of a CDMA signal, a PCS signal, a WCDMA signal, a Wi-Fi signal, and an LTE signal from the signal relay device 110 through a plurality of input ports. One or more signals can be input.

The wideband combiner 120 processes only signals of a preset frequency band according to each input port (S330). That is, the broadband combiner 120 may process only the signal of the preset frequency band to pass through using a reception and transmission bandpass filter that allows only the signal of the preset frequency band to pass. More specifically, the wideband combiner 120 processes only signals of a predetermined frequency band to pass according to each input port, and includes a first input port and a second input using a reception and transmission bandpass filter. A signal of a predetermined frequency band is processed in the received signal according to at least one input port among the port, the third input port, and the fourth input port.

The wideband combiner 120 outputs the processed signal through the one output port provided (S340). That is, the broadband combiner 120 relays at least one or more signals of the first frequency band signal, the second frequency band signal, the third frequency band signal, and the fourth frequency band signal through one output port. Transmit to device 130.

The inbuilding repeater 130 receives a signal output from the broadband combiner 120 and transmits the output signal into the inbuilding building through an antenna provided with the output signal (S350). The inbuilding relay device 130 is a signal of a first frequency band, a signal of a second frequency band, a third frequency through a cable composed of one line distributed to each floor in the inbuilding, and an antenna for transmitting and receiving signals with the cable. A signal of at least one or more frequency bands is transmitted from the signal of the band and the signal of the fourth frequency band.

In FIG. 3, steps S310 to S350 are described as being sequentially executed. However, this is merely illustrative of the technical idea of an embodiment of the present invention, and the general knowledge in the technical field to which an embodiment of the present invention belongs. Those having a variety of modifications and variations may be applicable by changing the order described in FIG. 3 or executing one or more steps of steps S310 to S350 in parallel without departing from the essential characteristics of an embodiment of the present invention. 3 is not limited to the time series order.

As described above, the in-building service method using the broadband combiner according to the embodiment of the present invention described in FIG. 3 may be implemented in a program and recorded in a computer-readable recording medium. A computer readable recording medium having recorded thereon a program for implementing an in-building service method using a broadband combiner according to an embodiment of the present invention includes all kinds of recording devices storing data that can be read by a computer system. do. Examples of such computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and also implemented in the form of a carrier wave (e.g., transmission over the Internet) . The computer readable recording medium may also be distributed over a networked computer system so that computer readable code is stored and executed in a distributed manner. In addition, functional programs, code, and code segments for implementing an embodiment of the present invention may be easily inferred by programmers skilled in the art to which an embodiment of the present invention belongs.

4 is an exemplary view showing a broadband combiner according to an embodiment of the present invention.

FIG. 4 is an example of the broadband combiner 120, and examples of products that can be used in actual implementation may vary depending on the type of relay devices serving the existing first frequency band and the types of networks to be newly added. That is, as shown in (A), (B), and (C) of FIG. 4, the relay device serving the first frequency band and the second frequency band outputs the first frequency band and the second frequency band. If the repeater of the type that is output from the output port of the, it may be implemented as a broadband combiner 120 that can receive the first frequency band and the second frequency band to a single port.

On the other hand, as shown in (D), (E), (F) of Fig. 4, a relay device serving the first frequency band and a relay device serving the second frequency band are separately installed to provide a first frequency band. If there are separate output ports for the second frequency band and the output port for the broadband combiner 120 also has an input port for the first frequency band and an input port for the second frequency band, respectively ( 120). However, the first frequency band referred to herein is a concept including a plurality of frequency bands (CDMA, PCS). In addition, when the third frequency band and the fourth frequency band must be serviced simultaneously, and when only one of the two is to be serviced, it is shown in any one of FIGS. 4A to 4F according to each situation. As described above, the input port of the broadband combiner 120 may be variously applied.

5 is a block diagram schematically illustrating an internal module of a broadband coupler according to an embodiment of the present invention.

When the outputs of the respective relay devices enter the input port of the broadband combiner 120, the signals are transmitted into the processor 220 through each cable connected to the input port of the input unit 210. These signals are separated into signals of a predetermined frequency band through a band pass filter (BPF) of the processor 220. Bandpass filter that passes only the transmitter frequency and bandpass that passes only the receiver frequency for the systems (CDMA, PCS, WCDMA, LTE) that use different transmission and reception frequencies with FDD (Frequency Division Duplex) communication. A filter is installed so that a path is divided into signals of a transmission frequency band and a reception frequency band, respectively. On the other hand, for a signal such as a third frequency band (for example, a Wi-Fi signal) that processes transmission (Tx) and reception (Rx) together in one channel, the transmission frequency and the reception frequency band are the same. There is no configuration for path separation, and a band pass filter is installed so that only signals of the corresponding frequency band are separated. Bandpass filters are usually made by combining multiple resonators. Thus, bandpass filters of each frequency band are configured, and then impedance matching (different frequencies) between signals passing through the bandpass filter is intermediate. When the bands show the maximum impedance to each other, but is matched to 50 Ω at the output port of the output unit 230), the signals of each frequency band are combined and outputted while minimizing interference and noise between each other. In addition, the combined signal coming into the output port of the output unit 230 (reverse direction) may be separated for each frequency and transmitted to the relay device of the corresponding system.

5 (F-1) is a block diagram showing the case of the broadband coupler shown in FIG. 4F in detail. The schematic construction principle is as described above, and the detailed construction method is a bandpass filter. The number of using and the position of combining the signals may vary depending on the operation of the impedance matching. That is, depending on the operation, even in the configuration as shown in Fig. 5 (F-2) it can be implemented a broadband coupler having the same performance.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, the present invention is applied to various fields capable of providing a service for a specific frequency band by additional installation of a broadband combiner without additional cable and antenna installation, and a relay device of a frequency band being serviced inside a large building. Since the infrastructure can be used jointly, it is a useful invention that generates the effect that can provide the service, without having to install a separate cable and antenna for the frequency band to be newly serviced.

110: signal relay 120: broadband combiner
130: in-building relay device 210: input unit
220: processing unit 230: output unit

Claims (13)

A signal relay device for amplifying and transmitting a signal of a specific frequency band received from a signal transmitting device;
Receives a plurality of frequency band signals from the signal relay device through a plurality of input ports, and processes only one signal of a predetermined frequency band according to each of the input ports to pass. A wideband combiner for outputting the processed signal through; And
An in-building relay device for receiving the output signal from the broadband combiner and transmitting the output signal
In-building system using a broadband combiner comprising a. The method of claim 1,
The signal relay device,
Receiving, amplifying, and transmitting a signal of at least one frequency band from a signal of a first frequency band, a signal of a second frequency band, a signal of a third frequency band, and a signal of a fourth frequency band from the signal transmitting device; In-building system using broadband combiner. The method of claim 2,
The signal of the first frequency band is a signal of 800 MHz to 999 MHz or a signal of 1,700 MHz to 1,899 MHz, the signal of the second frequency band is a signal of 1,900 MHz to 2,199 MHz, the signal of the third frequency band A signal of 2,400 MHz to 2,499 MHz, and the signal of the fourth frequency band is a signal including at least one frequency band of a signal of 700 MHz to 799 MHz, a signal of 800 MHz to 999 MHz, and a signal of 2,100 MHz to 2,199 MHz. In-building system using a broadband combiner. The method of claim 2,
The in-building relay device,
A signal of the first frequency band, a signal of the second frequency band, a signal of the third frequency band, through a cable composed of one line distributed to each floor in the building, and an antenna for transmitting and receiving signals with the cable; And a signal of at least one or more frequency bands from among the signals of the fourth frequency band. The method of claim 2,
The broadband combiner,
A first input port for receiving the signal of the first frequency band, a second input port for receiving the signal of the second frequency band, a third input port for receiving the signal of the third frequency band, and the first input port And at least one input port among fourth input ports for receiving signals of four frequency bands. The method of claim 1,
The broadband combiner,
And a reception (Rx) and transmission (Tx) band pass filter (BPF) to allow only signals of the predetermined frequency band to pass. A signal relay device for amplifying and transmitting any one of a signal of a third frequency band signal and a signal of a fourth frequency band received from the signal transmitting device;
A signal of the third frequency band is input through an input port for a third frequency band, and a signal preset according to each of the input ports after receiving a signal of the fourth frequency band through an input port for a fourth frequency band. A wideband combiner for outputting the processed signal through one output port provided after processing only a signal of a band is passed; And
An in-building relay device for receiving the output signal from the broadband combiner and transmitting the output signal
In-building system using a broadband combiner comprising a. An input unit configured to receive signals of a plurality of frequency bands through a plurality of input ports;
A processing unit which processes only signals of a predetermined frequency band to pass according to each of the input ports; And
Output unit for outputting the processed signal through one output port provided
Broadband combiner comprising a. The method of claim 8,
Wherein the input unit comprises:
A first input port for receiving a signal of a first frequency band from a signal relay device;
A second input port for receiving a signal of a second frequency band from the signal relay device;
A third input port for receiving a signal of a third frequency band from the signal relay device; And
A fourth input port for receiving a signal of a fourth frequency band from the signal relay device
And at least one input port of the wideband combiner. The method of claim 9,
Wherein,
Receive (Rx) so that only signals of a predetermined frequency band are passed through signals received according to at least one of the first input port, the second input port, the third input port, and the fourth input port. And a transmit (Tx) band pass filter (BPF). The method of claim 9,
The output unit includes:
Sending at least one signal of the signal of the first frequency band, the signal of the second frequency band, the signal of the third frequency band and the signal of the fourth frequency band through the one output port to an in-building relay device. Broadband combiner, characterized in that. Amplifying and transmitting a signal of a specific frequency band received from a signal transmitting device in the signal relay device;
Receiving signals of a plurality of frequency bands from the signal relay device through a plurality of input ports provided in a broadband combiner;
Processing only the signals of a predetermined frequency band according to each of the input ports in the broadband combiner and outputting the processed signals through one output port; And
Receiving the output signal from the in-building relay device, and transmitting the output signal
In-building service method using a broadband combiner characterized in that it comprises a. The method of claim 12,
Receiving the signals of the plurality of frequency bands,
Receiving at least one signal of at least one frequency band of a signal of a first frequency band, a signal of a second frequency band, a signal of a third frequency band, and a signal of a fourth frequency band at the wideband combiner. In-building service method using broadband combiner.

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