KR101741328B1 - Signal dispersion method and signal dispersion apparatus - Google Patents

Abstract

A signal distributing apparatus and a signal distributing method are disclosed. According to an embodiment of the present invention, there is provided a signal distribution method comprising the steps of: checking a service area of a plurality of radio communication base stations; determining, by a location of the service area, ); And propagating a wireless communication signal through an independent signal distribution by the main RSE, with an RU (Remote Unit) disposed in the service area; Or propagating the wireless communication signal to the RU through individual signal distribution by each of the plurality of wireless communication base stations.

Description

Technical Field [0001] The present invention relates to a signal distributing method and a signal distributing method,

The present invention is a method for transmitting a wireless communication signal from a wireless communication base station or a repeater to an RU (Remote Unit) located indoors or outdoors using an optical line and providing a wireless communication service to a terminal in the service area through each RU And more particularly, to a signal distributing apparatus and a signal distributing method.

2. Description of the Related Art In general, wireless access in vehicular environments (WAVE) is a wireless communication standard for vehicles. For example, in a vehicle, traffic information related to traffic conditions such as traffic accidents or congestion detected by a traffic situation detection system is transmitted to a terminal This is a wireless communication technology that provides WAVE communication services such as helping the driver to drive safely.

Such WAVE communication can be classified into V2V (Vehicle to Vehicle) communication, which is a wireless communication method between a vehicle and a vehicle, and V2I (Vehicle to Infrastructure) communication, which is a wireless communication method between a vehicle and a base station.

1 is a diagram illustrating an example of a network structure of a WAVE communication service according to a conventional example.

Referring to FIG. 1, a plurality of RSE (Road Side Equipment), which is a base station that provides WAVE communication, is installed on the roadside and transmits a wireless communication signal to a terminal in a vehicle moving on the road, thereby providing a WAVE communication service .

According to such a service network configuration, a large number of RSEs are required to be disposed on the roadway, and a large amount of cost may be incurred. Since vehicles moving at high speed repeatedly connect, disconnect, and reconnect with a large number of RSEs, Manufacturing techniques with a high degree of difficulty may be required.

The service network structure in which the plurality of base stations shown in FIG. 1 communicate with the mobile terminal is applicable not only to WAVE communication services but also to general wireless communication methods such as Wi-Fi communication and LTE (Long Term Evolution) communication In order to solve the problem of the communication quality degradation due to the frequent reconnection and cost problems caused by the provision of a plurality of base stations by providing the service, a repeater method of connecting a plurality of RUs (RF modules) to one base station by an optical cable Or an RF dispersion method is used.

As described above, in addition to the wireless communication in which the outdoor is the service area, the above-described method is also used in an in-building service that provides indoor communication as a service area. For example, in an in-building service, a service network can be constructed and expanded inexpensively and easily using an FTTH network having the structure shown in FIG.

2 is a diagram illustrating an example of an FTTH system using a PON scheme according to an embodiment of the present invention.

2, an FTTH system using a conventional PON system includes an OLT (Optical Line Terminal) located at a service provider central station, an RN (Remote Node, Optic Splitter) for multiplexing OLT signals, an ONT (Optical Network Unit) for optical network terminal (FTTB) and large building service (FTTB).

Here, the transmission line between the OLT, the RN, the ONU, and the ONT uses the optical cable, and the ONU and each service site can provide the service using the UTP cable. The FTTH system supports internet service providing service using Ethernet signal, wireless LAN AP connection, Internet Protocol TeleVision (IPTV), IP (Internet Protocol) phone, mobile communication, Can be provided.

However, in the method of linking a plurality of RUs (Remote Units) to one base station by using the signal dispersion method using the optical cable, it is difficult to install many optical cables.

2, in a structure in which a plurality of ONTs are connected to one OLT and a service is provided by dispersing the same downlink signals using a broadcasting scheme, an uplink signal Up Link is transmitted from the RU to the base station using a TDM (Time Division Multiplexer) scheme, it is necessary to use the same TDM scheme as the FTTH network or use a plurality of wavelengths not overlapping with the downstream signals. However, It is difficult to apply the TDM method due to the problem. Further, when using optical wavelengths which do not overlap with each other, it is difficult to use 32 or 64 different optical wavelengths in the 32 or 64 branch by the RN of FIG. 2 .

Accordingly, there is a demand for a technology for reducing the cost of constructing a high-cost base station by disposing a plurality of base stations and solving the problem of degradation of communication quality due to reconnection.

The embodiment of the present invention is to propagate a wireless communication signal from a wireless communication base station or a repeater to each RU located indoors or outdoors using an optical line and to provide a wireless communication service to a terminal in the service area through each RU The purpose.

Particularly, in the embodiment of the present invention, when a service area of a plurality of radio communication base stations is confirmed and the service area is identified as 'outdoors', a network is constructed by connecting a plurality of slave RSEs to one main RSE , And a radio communication signal distributed solely by the main RSE is propagated to each RU in the service area via the slave RSE.

In the present invention, a plurality of wireless communication base stations are divided into a plurality of slave RSEs (i.e., a DU (Digital Unit) without a RF module and a plurality of RUs) in one main RSE, The downlink signal of the wireless communication signal is converted into an optical signal by the RSE (i.e., DU) and propagated to a plurality of slave RSEs (i.e., RUs) through a dedicated dedicated network without coupling with the FTTH network, By transmitting the optical signal to the RUs arranged in the service area, it is possible to reduce the cost of constructing the expensive base station due to the arrangement of the plurality of base stations communicating with the terminals in the service area, and to solve the problem of degradation of communication quality due to reconnection have.

In the embodiment of the present invention, if it is determined that the service area is 'indoor', a radio communication signal individually distributed by each of the plurality of radio communication base stations may be transmitted to each of the RUs . ≪ / RTI >

The present invention converts a downstream signal from a wireless communication base station (repeater) into an optical signal and transmits the optical signal through an optical filter to an ONT connected to an FTTH network And transmitting the combined signal to each of the RUs distributed in the service area so as not to place a plurality of base stations in the service area, And the combined signal is distributed to the terminals in the service area to provide a high quality wireless communication service.

According to an embodiment of the present invention, there is provided a signal distribution method comprising the steps of: checking a service area of a plurality of radio communication base stations; determining, by a location of the service area, ); And propagating a wireless communication signal through an independent signal distribution by the main RSE, with an RU (Remote Unit) disposed in the service area; Or propagating the wireless communication signal to the RU through individual signal distribution by each of the plurality of wireless communication base stations.

According to another aspect of the present invention, there is provided a signal distributing apparatus comprising: a confirmation unit for confirming a service area of a plurality of radio communication base stations; And a RU (Remote Unit) disposed in the service area. The RU (Local Unit) distributes a wireless communication signal through an exclusive signal distribution by the main RSE, And a transmission / reception unit for propagating a wireless communication signal through individual signal distribution by each of the plurality of wireless communication base stations.

According to an embodiment of the present invention, a wireless communication signal from a wireless communication base station or a repeater is propagated to each RU located indoors or outdoors using an optical line, and a wireless communication service is provided to each terminal within a service area through each RU . Here, the RU may be divided into a stand-alone RU for exclusive use of a wireless communication signal and an integrated RU for simultaneously providing a wireless communication signal and an internet service data signal.

Also, according to an embodiment of the present invention, when a service area of a plurality of radio communication base stations is confirmed and a plurality of slave RSEs are connected to one main RSE when the service area is confirmed as 'outdoors' And a plurality of base stations communicating with the terminals in the service area by propagating a wireless communication signal distributed solely by the main RSE to the respective RUs in the service area via the slave RSE, It is possible to reduce the construction cost and solve the communication quality degradation problem due to the reconnection.

More specifically, the present invention divides a wireless communication base station into one main RSE (DU) and a plurality of slave RSEs (RUs), interworks a plurality of RUs with one DU, And then transmits the RUs to a plurality of RUs, it is possible to support a high quality wireless communication service. At this time, the present invention may comprise the main RSE (DU) including a separate repeater in the wireless communication base station.

In addition, according to an embodiment of the present invention, when the service area is identified as 'indoor', a radio communication signal, which is separately distributed by each of the plurality of radio communication base stations, I can propagate to each RU.

Specifically, the present invention converts a wireless communication signal into a downlink signal from a wireless communication base station (repeater) to an optical signal, combines the optical signal with an optical signal provided to an ONT connected to the FTTH network, And distributes the combined signal to the terminals in the service area by distributing the combined signal to each of the RUs distributed in the service area by not distributing a plurality of base stations in the service area, Thereby providing a high-quality wireless communication service.

In addition, according to an embodiment of the present invention, only a downstream signal (downlink) of a wireless communication signal transmitted from a wireless communication base station to a terminal in a service area is photo-converted, and a photo-converted downstream signal is generated in the OLT of the FTTH network And can transmit optical signals to RUs and ONTs arranged in the service area in combination with an optical signal for Internet service.

Also, according to an embodiment of the present invention, transmission of an uplink signal including data is omitted from an uplink signal (uplink signal) transmitted from a terminal in a service area to a radio communication base station, and RU operation management and Time Advance The upstream signal for optical line measurement for optical communication can be optically transmitted to the wireless communication base station.

1 is a diagram illustrating an example of a network structure of a WAVE communication service according to a conventional example.
2 is a diagram illustrating an example of an FTTH system using a PON scheme according to an embodiment of the present invention.
3 is a diagram illustrating an internal configuration of a signal distributor according to an embodiment of the present invention.
4 is a diagram illustrating an example of propagating a wireless communication signal to each of RUs located outdoors using a dedicated network in a signal distributing apparatus according to an embodiment of the present invention.
5 is a diagram showing a configuration of a general wireless communication base station.
FIG. 6 is a diagram illustrating an example of configuring a DU by including an optical signal converting unit in a wireless communication base in a signal distributing apparatus according to an embodiment of the present invention.
7 is a view illustrating an example of configuring an RU by combining an RF signal converting unit with an RF module in a wireless communication base in a signal distributing apparatus according to an embodiment of the present invention.
8 is a diagram illustrating another example of propagating a wireless communication signal to each of RUs located outdoors using a dedicated network in a signal distributing apparatus according to an embodiment of the present invention.
9 to 10 are views showing an example of propagating a wireless communication signal to each of RUs arranged in a service area using an FTTH network in a signal distributor according to an embodiment of the present invention.
11 is a diagram illustrating an internal structure of DU in a signal distributor according to an embodiment of the present invention.
12 is a diagram illustrating an internal structure of an RU in a signal distributor according to an embodiment of the present invention.
FIG. 13 is a block diagram illustrating a signal distributing apparatus according to an embodiment of the present invention. Referring to FIG. 13, an RU Each of which transmits a wireless communication signal.
FIG. 14 is a diagram showing an example of propagating a wireless communication signal to each of RUs arranged in a service area using a dedicated network other than the FTTH network in the signal distributing apparatus according to an embodiment of the present invention.
FIG. 15 is a diagram illustrating an example of propagating a wireless communication signal to each of the RUs placed in a building using the FTTH network in the signal distributing apparatus according to an embodiment of the present invention.
16 is a diagram illustrating a coupling method between a data signal transmitted through an FTTH network and a wireless communication signal when a wireless communication signal is propagated using an FTTH network in a signal distributor according to an embodiment of the present invention .
FIG. 17 is a diagram illustrating a signal distributing apparatus according to an embodiment of the present invention. In FIG. 17, an upstream signal and a downstream signal of a wireless communication signal transmitted / received through an FTTH network are transmitted between a wireless communication base station and a plurality of RUs arranged in a service area, Fig. 2 is a diagram showing an example of transmission using wavelengths.
18 is a view showing an embodiment of an RU (wireless communication service apparatus) in a signal distributing apparatus according to an embodiment of the present invention.
19 is a flowchart illustrating a procedure of a signal distribution method according to an embodiment of the present invention.

Hereinafter, an apparatus and method for updating an application program according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

The signal distributing apparatus according to an embodiment of the present invention checks a service area of a plurality of radio communication base stations and connects a plurality of slave RSEs to one main RSE when the service area is identified as' And a wireless communication signal distributed by the main RSE is propagated to each RU in the service area via the slave RSE so that a plurality of base stations communicating with the terminal are arranged in the service area, It is possible to reduce the cost of establishing the base station and to solve the communication quality degradation problem due to the reconnection.

Specifically, the signal distributing apparatus of the present invention divides a wireless communication base station into one main RSE (DU) and a plurality of slave RSEs (RU), interworking a plurality of RUs with one DU, Signal is converted into an optical signal, and the optical signal is dispersed and then transmitted to a plurality of RUs, so that a high-quality wireless communication service can be supported. At this time, the present invention may comprise the main RSE (DU) including a separate repeater in the wireless communication base station.

In the signal distributing apparatus of the present invention, when the service area is confirmed to be 'indoor', a radio communication signal individually distributed by each of the plurality of radio communication base stations is transmitted to the RU Respectively.

Specifically, the signal distributing apparatus of the present invention converts a downstream communication signal from a wireless communication base station (repeater) into an optical signal, and transmits the optical signal through an optical filter to a data signal provided to an ONT connected to the FTTH network And transmits the combined signal to each of the RUs distributed in the service area so as not to place a plurality of base stations in the service area, And can provide a high-quality wireless communication service.

3 is a diagram illustrating an internal configuration of a signal distributor according to an embodiment of the present invention.

3, the signal distributing apparatus 300 according to an embodiment of the present invention may include an identifying unit 310, a determining unit 320, and a transmitting / receiving unit 330.

The confirmation unit 310 identifies service areas of a plurality of wireless communication base stations.

For example, when each RU connected to a plurality of wireless communication base stations and a dedicated network (optical line) is located outdoors, the confirmation unit 310 can confirm the location of the service area outdoors. For example, referring to FIG. 3, when each RU (not shown) connected to a plurality of wireless communication base stations (RSE) is disposed on the road, the identifying unit 310 determines whether a service area You can see the location as 'outdoors'.

Also, when each RU connected to a plurality of wireless communication base stations through a dedicated network (optical line) is located indoors, the identifying unit 310 can confirm the location of the service area outdoors. 15, which will be described later, when the RUs connected to the wireless communication base station 1510 and the FTTH network are located in a building, the identifying unit 310 determines a location of a service area in which a wireless communication service is provided It can be confirmed as 'indoors'.

The determination unit 320 determines whether to divide the plurality of radio communication base stations including the main RSE (Road Side Equipment) according to the position of the service area.

For example, if the location of the service area is determined to be 'outdoors', the determining unit 320 may determine to distinguish the plurality of radio communication base stations including the main RSE that performs the independent signal distribution.

For example, referring to FIG. 4, which will be described later, the determination unit 320 may divide a plurality of radio communication base stations into one main RSE 401 and a plurality of slave RSEs 402, 403, and 404. That is, the determination unit 320 may divide a plurality of wireless communication base stations into DU and a plurality of RUs. Here, the main RSE 401 corresponds to DU, and the plurality of slave RSEs 402, 403, and 404 correspond to RUs. In addition, each of the slave RSEs 402, 403, and 404 may be connected to an RU disposed in a service area through a dedicated network.

If the position of the service area is determined to be 'indoor', for example, the determining unit 320 determines to perform the individual signal distribution of each of the wireless communication base stations without distinguishing the main RSE among the plurality of wireless communication base stations .

The transmission / reception unit 330 is an RU (Remote Unit) disposed in the service area, and transmits a radio communication signal through an independent signal distribution by the main RSE, or to the RU, to each of the plurality of radio communication base stations Propagate the wireless communication signal through the individual signal dispersion by the wireless communication device.

For example, when the position of the service area is determined to be outdoors and the division of the main RSE is determined, the transmission / reception unit 330 transmits the downstream signal of the wireless communication signal to the first optical And a plurality of second optical signals are connected to a main RSE and a dedicated network (optical line), and the slaves in the wireless communication base station, RSE.

4, the transceiver 330 converts a downstream signal of a wireless communication signal (e.g., an IF signal, an RF signal, an IQ signal, etc.) into a first optical signal by the main RSE 401 The second optical signals can be optically distributed according to the number of the slave RSEs 402, 403, and 404. The transceiver 330 may transmit the second optical signals to the slave RSEs 402, 403, and 404 connected to the main RSE 401 and the dedicated network 405.

At this time, the transceiver 330 may optically transmit the second optical signals to the slave RSE using optical wavelengths different from signals transmitted through the dedicated network (optical line). That is, the transceiver 330 may optically transfer the plurality of second optical signals to the slave RSE using different optical wavelengths so that the optical wavelengths used by the first transmitted signals and the second optical signals do not overlap.

In addition, when the downstream signal is analog, the transceiver 330 can convert the downstream signal to the first optical signal by switching from the analog form to the digital form by an ADC (Analog to Digital Converter) have.

Here, the downlink signal of the wireless communication signal may be generated by the wireless communication base station, or may be received from another wireless communication base station or repeater connected to the wireless communication base station through a backhaul.

The transceiver 330 may relay the plurality of second optical signals to the RUs connected to the optical ports in the respective slave RSEs via the slave RSEs. In addition, the transceiver 330 converts the relayed second optical signal to an RF signal through each of the RUs, transfers the RF signal to the terminal in the service area, and transmits a WAVE (Wireless Access in Vehicular Environment) communication service.

Specifically, the transmitting and receiving unit 330 may divide the second optical signal, which has been optically received, in each of the slave RSEs into a plurality of third optical signals through an RN (Remote Node) have.

For example, referring to FIG. 8 to be described later, the transceiving unit 330 converts a downlink signal of a wireless communication signal, which is separately distributed by DU (main RSE) 810, into a first optical signal, 2 optically dispersed into an optical signal and optically transmitted to the slave RSE. The transceiving unit 330 transmits the second optical signal received from each slave RSE to the RN 830, branches the optical signal into a plurality of third optical signals, and transmits the branched third optical signals to the respective RUs 840 ). Each of the RUs 840 converts the third optical signal, which has been optically received, into an RF signal and transmits the third optical signal to a terminal in the service area, thereby providing a WAVE communication service in the terminal.

In another example, when the position of the service area is identified indoors and the main RSE is not determined, the transmitting / receiving unit 330 transmits downlink signals to the radio communication base stations Signal to a first optical signal, combining the first optical signal with a data signal provided to the service area by a FTTH (Fiber To The Home) network to generate a combined signal, Optically dispersed by the second optical signal, and optically transmitted through the FTTH network to each of the RUs disposed in the indoor space.

That is, the transceiver 330 optically converts only the downstream signal (downlink) of the wireless communication signal transmitted from the wireless communication base station to the terminal in the service area, and transmits the optically-converted downstream signal in the OLT of the FTTH network And can transmit optical signals to RUs and ONTs arranged in the service area in combination with optical signals.

9, which will be described later, the transceiver 330 can convert a downstream signal of a wireless communication signal received from the wireless communication base station or the repeater 910 into a first optical signal by DU 900 have. The transmission and reception unit 330 transmits the first optical signal to the data signal converted into the optical signal by the optical line terminal (OLT) 920 in the FTTH network at the optical filters 931 and 932 in the FTTH network, (Optic Overlay) to generate the combined signal. The transceiver 330 may divide the combined signal into a plurality of optical signals through the RNs 941 and 942 in the FTTH network and transmit the optical signals to the RUs 951 to 954 or ONTs.

The transmission / reception unit 330 separates the combined signal into a downlink signal and a data signal of the wireless communication signal through the RUs, and transmits the downlink signal of the separated wireless communication signal to the terminal in the service area And provides the wireless communication service or provides the internet service or the IPTV service by transmitting the separated data signal to the terminal in the service area.

12, which will be described later, the transceiver 330 separates the combined signal into a downstream signal and a data signal of the wireless communication signal through the optical transducer in the RU 1200, A downstream signal of the wireless communication signal can be digitally processed and converted into an RF signal through a DAC (Digital to Analog Converter). The transceiver 330 may provide the wireless communication service by transmitting the RF signal to the terminal. At this time, the transmitting / receiving unit 330 may transmit the combining signal to another RU # 2 connected to the optical port in the optical converter.

The transmission / reception unit 330 is a single RU that provides dedicated downstream signals for the wireless communication signals to the terminals when transmitting the second optical signals to the respective RUs located in the service area, An integrated RU that simultaneously provides a data signal to the terminal and transmits the separated data. Accordingly, the internal configuration of the single type RU and the integrated RU may be different.

In another example, when transmission of an uplink signal of a wireless communication signal from the terminal in the service area to the plurality of wireless communication base stations is requested, the transmitter / receiver 330 transmits an uplink signal to the NMS Network management system) network management or optical line length measurement, and transmits the upstream signals to the plurality of wireless communication base stations.

That is, the transmission / reception unit 330 omits transmission of an uplink signal including data from an uplink signal (uplink signal) transmitted from a terminal in the service area to the wireless communication base station, and transmits the uplink signal including the RU operation management and Time Advance The upstream signal for measurement can be selectively transmitted to the wireless communication base station.

Specifically, the transmission / reception unit 330 turns on the optical signal generating function set to off in each of the RUs as the uplink signal transmission command is generated in the plurality of radio communication base stations, It is possible to transmit the uplink signal received from the terminal in the service area to the plurality of radio communication base stations through the respective RUs whose generation function is turned on.

For example, referring to FIG. 16 to be described later, the transmission / reception unit 330 transmits the uplink signal transmission command to the radio communication base station 1610 and transmits the uplink signal to the radio communication base station 1610 through the FTTH network. And transmits an upstream signal associated with the NMS management or optical line length measurement received from the terminal in the service area to the wireless communication base station 1660 via the RU 1660 by turning on the optical signal generating function of all the deployed RUs 1660. [ The optical transmission unit 1610 can transmit the light.

At this time, the transmission / reception unit 330 can transmit the uplink signal to the plurality of wireless communication base stations using a different optical wavelength from the downlink signals of the wireless communication signals propagated from the plurality of wireless communication base stations to the terminals in the service area have.

For example, referring to FIG. 17 to be described later, the transmitter / receiver 330 uses the optical wavelength '? 4' that is different from the optical wavelength '? 3' used by the downlink signal propagated from the wireless communication base station to the terminal in the service area, By transmitting the uplink signal from the terminal in the service area to the wireless communication base station, the optical wavelengths used between the uplink signal and the downlink signal can be prevented from overlapping.

As described above, according to an embodiment of the present invention, a wireless communication signal from a wireless communication base station or a repeater is propagated to each RU located indoors or outdoors using an optical line, Communication service can be provided. Here, the RU may be divided into a stand-alone RU for exclusive use of a wireless communication signal and an integrated RU for simultaneously providing a wireless communication signal and an internet service data signal.

4 is a diagram illustrating an example of propagating a wireless communication signal to each of RUs located outdoors using a dedicated network in a signal distributing apparatus according to an embodiment of the present invention.

FIG. 4 illustrates a service network structure in which a plurality of slave RSEs 402 are connected in a cascade form to one main RSE 401. The main RSE 401 and the plurality of slave RSEs 402 may be connected using a dedicated network 405 such as an optical cable and the main RSE 401 may be connected to the base station 402 providing the WAVE wireless communication service (Digital Unit), and a plurality of slave RSEs 402 may represent an RU (RF Unit) of a base station providing a WAVE wireless communication service.

4, a signal distributing apparatus according to an embodiment of the present invention includes a plurality of radio communication base stations, one main RSE 401 and a plurality of slave RSEs 402, 403 and 404, that is, one DU and a plurality of slave RSEs 402, And the RU of the slave RSEs 402, 403 and 404, and converts the downstream signals of the wireless communication signals (e.g., IF signals, RF signals, IQ signals, etc.) into the first optical signals by the main RSE 401. Then, It is possible to optically distribute the first optical signal to a plurality of second optical signals corresponding to the number of optical signals and transmit the optical signals to the slave RSEs 402, 403 and 404 through the dedicated network 405.

The signal distributor may relay the plurality of second optical signals to each of the RUs arranged in a service area ('road') connected to an optical port in each of the slave RSEs 402, 403 and 404, It is possible to provide the WAVE communication service to any in-vehicle terminal that travels in the service area. Here, the RU may be implemented as a standalone RU that exclusively services the RF signal (wireless communication signal) without coupling with a data signal for Internet service.

5 is a diagram showing a configuration of a general wireless communication base station.

Referring to FIG. 5, a conventional wireless communication base station 500 may include a modem 510 and a plurality of RF modules 521 and 522.

The modem 510 may function to process a baseband signal from another wireless communication base station or repeater connected through a backhaul.

The RF modules 521 and 522 receive a signal processed by the modem 510 and convert the received signal into an RF signal form and transmit the RF signal to a terminal in a service area set in the wireless communication base station 500 through an antenna Can be performed.

FIG. 6 is a diagram illustrating an example of configuring a DU by including an optical signal converting unit in a wireless communication base in a signal distributing apparatus according to an embodiment of the present invention.

Referring to FIG. 6, the DU 610 may include the modems 510 and 610 and the optical signal converter 620 of the wireless communication base station 500 shown in FIG. The DU 610 may be implemented as a main RSE when a service area in which a plurality of RUs are distributed is located outdoors.

The optical signal converting unit 620 converts a signal output from the modems 510 and 610 into a first optical signal, optically disperses the first optical signal into a plurality of second optical signals, , And can transmit data to each of the plurality of RUs via the slave RSE connected to the main RSE and the dedicated network.

That is, the optical signal converting unit 620 may have a structure for dividing a signal input from the modems 510 and 610 into a plurality of second optical signals and transmitting one of the second optical signals to the respective RUs.

According to the embodiment, the DUs 610 and 1100 may further comprise an ADC, as shown in FIG. The DUs 610 and 1100 convert the analog signal into a digital signal through an ADC when the signals output from the modems 510 and 610 are any of an analog IQ signal, an IF signal, and an RF signal, 620 < / RTI >

Meanwhile, when the signal output from the modems 510 and 610 is any one of a digital IQ signal, an IF signal, and an RF signal, the DU 610 may be designed so as not to use an ADC as shown in FIG.

7 is a view illustrating an example of configuring an RU by combining an RF signal converting unit with an RF module in a wireless communication base in a signal distributing apparatus according to an embodiment of the present invention.

7, the RU 700 may include an RF signal converting unit 710 and a plurality of RF modules 521, 522, 721, and 722 in the radio communication base station 500 shown in FIG.

For example, the RU 700 may be implemented as a slave RSE connected to the main RSE (DU) and the dedicated network when the service area is located outdoors.

Specifically, the RU 700 may be connected to an RU disposed in the service area through an optical port, and the RF signal converter 710 may convert the optical signal received from the DU 600 shown in FIG. 6 Signal) to each of the RUs.

The RF signal converting unit 710 in the RU 700 converts the optical signal received from the DU 600 into a signal having the same form as the signal input to the optical signal converting unit 620 in FIG 6 , An IQ signal, an IF signal, an RF signal, and the like), performs various digital signal processing to convert it into an RF signal, and transmits the RF signal to the terminal in the service area through each of the RF modules 721 and 722 can do.

Although the downlink signal processing process for processing the downlink signal of the wireless communication signal has been described with reference to FIGS. 5 to 7, the downlink signal processing process for WAVE wireless communication An uplink signal processing unit for processing an uplink signal of a wireless communication signal is required. In this case, the uplink signal processing unit can operate in the reverse order of the downlink signal processing.

8 is a diagram illustrating another example of propagating a wireless communication signal to each of RUs located outdoors using a dedicated network in a signal distributing apparatus according to an embodiment of the present invention.

8, one DU 810 generates a plurality of optical signals (second optical signals), and transmits the generated optical signals to an RN (optical line) through a dedicated network (optical line) without coupling with the FTTH optical signal. (Third optical signal) through the optical fiber 830 to the RU 840, respectively.

11, if the wireless communication base station and the DUs 810 and 1100 are implemented without being separated, the wireless communication base station can provide RF signals from the DUs 810 and 1100. In this case, the wireless communication base station may be located at the front end of the DUs 810 and 1100. That is, when the wireless communication base station is not divided into the DUs 810 and 1100 and the RUs, the RF communication base station converts the RF signal into an optical signal and divides the converted optical signal into a plurality of optical signals have. These optical signals may be diverted by the RN 840 as shown in FIG.

DU 810 may use the existing optical line as a dedicated network, but most of the new optical line can be installed to optically transmit the generated optical signal to each of RUs 840. In this case, when the existing optical line is used as a dedicated network, the DU 810 can transmit optical signals to the respective RUs 840 using different optical wavelengths so that optical wavelengths do not overlap with each other.

9 to 10 are views showing an example of propagating a wireless communication signal to each of RUs arranged in a service area using an FTTH network in a signal distributor according to an embodiment of the present invention.

9 and 10 show a structure of a system for distributing downlink signals of a wireless communication signal through an FTTH network. Such a structure can be used in a wireless communication scheme supporting carrier aggregation.

9 and 10, the signal distributing apparatus according to an embodiment of the present invention can be implemented by being divided into DU (900, 1000) and RUs (951 to 954, 1041 to 1044).

9, the DU 900 is implemented separately from the wireless communication base station or the repeater 910 to convert a downstream signal of a wireless communication signal received from the wireless communication base station or the repeater 910 into a first optical signal, The first optical signal can be optically dispersed into a plurality of second optical signals.

In this case, when a wireless communication signal based on an RF signal is generated in the wireless communication base station or the repeater 910, the DU 900 controls the gain of the RF signal to generate an RF transceiver chipset or a frequency mixer, And an analog to digital converter (ADC), and converts the RF signal converted into the digital signal into the first optical signal.

10, the DU 1000 is embodied in a wireless communication base station or a repeater to convert a downstream signal of a wireless communication signal into a first optical signal, and converts the first optical signal into a second optical signal It is possible to disperse light. In this case, the wireless communication base station or the repeater itself can perform the DU function.

At this time, the DU 1000 may use the optical signal itself as the first optical signal when a wireless communication signal based on the optical signal is generated in the wireless communication base station or the repeater.

9 and 10, the DUs 900 and 1000 control optical filters 931, 932, 1021, and 1022 to transmit data signals provided to the ONTs by the OLTs 920 and 1010 of the FTTH network, The second optical signal is optically overlaid to generate a combined signal and the combined signal is branched into a plurality of third optical signals through RNs 941, 942, 1031, and 1032 to provide respective RUs 951, 952, 953, 954, , 1042, 1043, 1044) and the ONT.

Here, the optical filters 931 and 932 can combine the data signal and the second optical signal, for example, in the manner shown in Fig. 13 (i). The DUs 900 and 1310 branch the second optical signal of the LTE wireless communication from the wireless communication base stations 910 and 1320 by the optical ports of the OLTs 920 and 1330 of the FTTH network, The optical filters 931, 932 and 1340 convert the data signal into an optical signal and overlay the second optical signal transmitted from the DU 900 to the optical signal to generate a combined signal , RNs (941, 942, 1350), and can transmit optical signals to the RUs (951, 952, 953, 954, 1360).

Further, the optical filters 1021 and 1022 can combine the data signal and the second optical signal, for example, in the manner shown in Fig. 13 (ii). The DUs 1000 and 1370 branch the second optical signal of the LTE wireless communication by the optical ports of the OLTs 920 and 1330 of the FTTH network and transmit them to the optical filters 931, 932 and 1340, 931, 932, and 1340 convert the data signal into an optical signal, and overlay the second optical signal transmitted from the DUs 1000 and 1370 to the optical signal to generate an RN 1031, 1032, To optical signals to the RUs 1041, 1042, 1043, 1044, and 1360, respectively.

At this time, the optical filters 931, 932, 1021, and 1022 transmit the data signals to the downlink (e.g., a link used for transmission from the ONT to the ONT) and the uplink (e.g., The unused wavelength can be set to the second optical signal to generate the combined signal.

The RNs 941, 942, 103 1, and 103 2 are located inside (outdoors) the building where the optical cable is installed, and can branch the combined signal. At this time, the optical filters 931, 932, 1021, and 1022 connect the coupling signal branched by the RNs 941, 942, 1031, and 1032 to at least one ONT and RUs 1041, 1043, 1044, 1360).

Further, the RN may be located outside the building where the optical cable is not installed, and may divide the combined signal

The RUs 1041, 1042, 1043, 1044, and 1360 receive the optical signals corresponding to the wireless communication signals among the combined signals transmitted from the optical filters 931, 932, 1021, and 1022, To the terminal, thereby providing the wireless communication service in the wireless communication terminal.

In addition, the ONT receives an optical signal corresponding to a data signal for an Internet service among the combined signals transmitted from the optical filter, and transmits the obtained RF signal to a wireless communication terminal in the building, thereby providing various internet services in the building can do.

A signal distributing apparatus according to an embodiment of the present invention includes downlink signals (downlink signals) of a wireless communication base station through DUs (900,1000) and RUs (951 to 954, 1041 to 1044) And the uplink signal from the wireless communication terminal is communicated to the peripheral wireless communication base station. That is, the signal distributing apparatus of the present invention can simultaneously transmit downlink signals of a plurality of bands and transmit uplink signals by connecting with neighboring mobile communication base stations.

As described above, the signal distributing apparatus of the present invention can use existing FTTH infrastructures as it is through optical filters 931, 932, 1021, and 1022 without changing the existing FTTH optical line and OLTs 920 and 1330.

11 is a diagram illustrating an internal structure of DU in a signal distributor according to an embodiment of the present invention.

Referring to FIG. 11, the DU 1100 may be configured to include an ADC, an optical framer, a light converter, and an optical divider. At this time, the DU 1100 may be implemented by including the modem 610 of the wireless communication base station as shown in FIG.

The DU 1100 converts an analog type wireless communication signal (for example, an RF signal) output from the modem 610 into a digital signal by using an ADC, converts the digital signal into a digital signal by using an optical framer and an optical converter, Signal into a first optical signal and optically distribute the first optical signal to a plurality of second optical signals using an optical splitter. DU 1100 can optically transmit the second optical signals to RUs in the service area via the slave RSE connected to the wireless communication base station (main RSE) through a dedicated network (optical line).

12 is a diagram illustrating an internal structure of an RU in a signal distributor according to an embodiment of the present invention.

Referring to FIG. 12, the RU 1200 may include a light converter, a digital signal processor, and a DAC.

The optical transceiver can relay optical signals (second optical signals) received from DUs 600 and 1100 shown in FIGS. 6 and 11 to RUs in a service area connected through optical ports. That is, the optical transducer may provide an optical port for connecting another RU (e.g., RU # 2).

Further, the optical converter can restore the received second optical signal to a signal (for example, RF signal) having the same form as the signal input to the optical signal converting unit 620 of FIG.

The digital signal processing unit may perform various digital signal processing on the restored signal (RF signal).

The DAC converts the signal (RF signal) that has undergone the digital signal processing into an analog signal, and transmits it to the wireless communication terminals in the service area by the RF modules 721 and 722 shown in FIG.

FIG. 13 is a block diagram illustrating a signal distributing apparatus according to an embodiment of the present invention. Referring to FIG. 13, an RU Each of which transmits a wireless communication signal.

In FIG. 13, the signal distributing apparatus according to an embodiment of the present invention can be implemented by being divided into DU (1310, 1370) and RU (1360).

Referring to FIG. 13 (i), the DU 1310 may be implemented separately from the wireless communication base station or the repeater 1320. DU 1310 converts a wireless communication signal from the wireless communication base station 1320 into a first optical signal and transmits a second optical signal branched from the first optical signal by a number of optical ports of the OLT 1330 of the FTTH network, Signal to the optical filter 1340. [ The DU 1310 converts the data signal provided to the ONT by the OLT 1330 into an optical signal through the optical filter 1340 and generates a combined signal by overlaying the second optical signal on the optical signal .

Referring to FIG. 13 (ii), DU 1370 may be included in a wireless communication base station or a repeater. DU 1370 converts a wireless communication signal into a first optical signal and then transmits a plurality of second optical signals branched by the optical port number of the OLT 1330 of the FTTH network to the optical filter 1340 .

13 (i) and 13 (ii), the optical filter 1340 is configured to receive the data signal from the downlink (e.g., a link used for transmission from the OLT to the ONT) A wavelength not used for a signal to be used for a link can be set to the second optical signal to generate the combined signal.

The DU 1310 may divide the combined signal generated by the optical filter 1340 into a plurality of third optical signals through the RN 1350 and optically transmit the split optical signals to the respective RUs 1360.

FIG. 14 is a diagram showing an example of propagating a wireless communication signal to each of RUs arranged in a service area using a dedicated network other than the FTTH network in the signal distributing apparatus according to an embodiment of the present invention.

Referring to FIG. 14, a signal distributor according to an embodiment of the present invention may include a DU 1410, an RN 1420, and an RU 1430.

According to the network structure shown in Fig. 14, the DU 1410 can be included in the wireless communication base station without being separated from the wireless communication base station. At this time, the DU 1410 may be included in the main RSE when the position of the service area is confirmed outdoors. Also, the DU 1410 can optically transmit the wireless communication signals to the RUs 1430 disposed in the service area without coupling with the internet data signals.

Specifically, the DU 1410 converts a downlink signal of a wireless communication signal, which is separately distributed by the main RSE, into a first optical signal, optically distributes the same to a plurality of second optical signals, Optical transmission to a plurality of slave RSEs connected through a plurality of slave RSEs.

The DU 1410 branches the second optical signal to a plurality of third optical signals through the RN 1420 when transmitting the second optical signal to each of the RUs 1430 disposed in the service area via each slave RSE, And may transmit the plurality of third optical signals to the respective RUs 1430.

Accordingly, each RU 1430 converts the optically received third optical signal into an RF signal and transmits it to the in-vehicle wireless communication terminal moving in the service area, thereby providing a WAVE communication service in the wireless communication terminal have.

FIG. 15 is a diagram illustrating an example of propagating a wireless communication signal to each of the RUs placed in a building using the FTTH network in the signal distributing apparatus according to an embodiment of the present invention.

15, a signal distributor according to an embodiment of the present invention may include a DU 1510, an optical filter 1530, an RN 1540, and an RU 1550.

In the signal distributing device, since the wireless communication base station 1510 and the RUs 1550 connected to each other through the FTTH network are located inside the building, the signal distributing device confirms the location of the service area where the wireless communication service is provided as 'indoor' Among the communication base stations, the radio communication base station 1510 can be classified as a main RSE.

The DU 1500 can be implemented in the wireless communication base station 1510 and the main RSE, but FIG. 15 shows an example in which the DU 1500 is implemented apart from the wireless communication base station 1510.

The DU 1500 converts a wireless communication signal received from the wireless communication base station or the repeater 910 into a first optical signal, optically distributes the first optical signal to a plurality of second optical signals, .

The DU 1500 controls the optical filter 1530 to generate a combined signal by optically overlaying the data signal provided to the service area by the OLT 1520 connected to the FTTH network and the second optical signal, And can transmit the combined signal to each of the RUs 1550 disposed in the building via an optical cable.

At this time, the DU 1500 may use the RN 1540 to divide the second optical signal into a plurality of third optical signals and transmit the third optical signals to the respective RUs 1550.

16 is a diagram illustrating a coupling method between a data signal transmitted through an FTTH network and a wireless communication signal when a wireless communication signal is propagated using an FTTH network in a signal distributor according to an embodiment of the present invention .

Referring to FIG. 16, the optical wavelength of the downlink (transmission of the OLT 1630, ONT reception) used in the FTTH network is referred to as a first optical wavelength (' The optical wavelength used for transmission of the downlink optical signal by the wireless communication base station 1610 is divided into the first optical wavelength ('? 1') and the second optical wavelength (? ("? 3 ') which is a different wavelength that does not overlap with the optical wavelength?' 2 ', so that the optical cable can be shared.

At this time, the DU 1600 transmits the optical signal of the downlink signal to the terminal 1600 so as not to overlap with the fourth optical wavelength '4' used by the upstream signal of the wireless communication signal transmitted from the terminal in the service area via the optical filter 1640 '3' can be set.

Specifically, the DU 1600 converts a downstream signal of the wireless communication signal from the wireless communication base station 1610 into a first optical signal, optically disperses the first optical signal into a plurality of second optical signals, And can be transmitted to the optical filter 1640 using the wavelength '? 3'.

The optical filter 1640 combines the data signal transmitted from the OLT 1630 using the first optical wavelength '? 1' and the second optical signal using the third optical wavelength? 3 ' And transmit the combined signal to the RN 1650 using the first optical wavelength ('lambda 1') or the third optical wavelength ('lambda 3').

The RN 1650 may divide the transmitted combined signal into a plurality of optical signals corresponding to the number of RUs 1660 disposed in the service area and transmit the optical signals to the RUs 1660, respectively.

Since only the downlink signal is transmitted in the wireless communication optical signal, the uplink signal processing method (e.g., time division, wavelength division, etc.) used in the FTTH network may not be applied. At this time, the optical signal of the wireless communication base station may have an advantage that the service can be performed even if the same signal is distributed in a very large number.

On the other hand, in the method of transmitting only the downlink signal, there is a problem in that it is impossible to implement the function of measuring the optical line length for the time advance such as LTE without being an NMS (Network Management System) for managing a plurality of RUs And a method of transmitting an uplink signal is required.

The uplink signal transmission may include only the NMS uplink signal, not the wireless communication uplink signal transmission, and only the uplink signal for optical line length measurement for Time Advance.

As shown in FIG. 16, in each RU, the optical wavelength of the uplink signal to be transmitted to the radio communication base station can be set as the fourth optical wavelength ('? 4'). As shown in FIG. 17, A light wavelength ('4') can be used.

Since an uplink signal (uplink signal of a wireless communication signal) is a signal transmitted from each of a considerable number of RUs to a wireless communication base station, each RU, when transmitting an uplink signal (uplink signal) to a wireless communication base station, A message informing the transmission can be transmitted to the radio communication base station.

At this time, the wireless communication base station can be configured to receive only the uplink signal transmitted from the corresponding RU. That is, the wireless communication base station turns off the optical signal generation function for each of the RUs when it is not necessary to transmit the uplink signal from all the RUs to the wireless communication base station, and when it is necessary to transmit the uplink signal, And the optical signal generating function can be turned on for each RU.

Accordingly, the wireless communication base station can receive the uplink signal (up signal) received from the terminal in the service area through each RU whose optical signal generating function is turned on.

FIG. 17 is a diagram illustrating a signal distributing apparatus according to an embodiment of the present invention. In FIG. 17, an upstream signal and a downstream signal of a wireless communication signal transmitted / received through an FTTH network are transmitted between a wireless communication base station and a plurality of RUs arranged in a service area, Fig. 2 is a diagram showing an example of transmission using wavelengths.

Referring to FIG. 17, the RN divides the combined signal transmitted using the third optical wavelength ('? 3') from the optical filter into a plurality of optical signals corresponding to the number of RUs arranged in the service area, Optical transmission.

The combined signal may be generated in the optical filter through a combination of a wireless communication signal (downstream signal) from the wireless communication base station carried by the DU and a data signal provided by the OLT connected to the FTTH network.

At this time, the third optical wavelength 'λ3' is set so that the third optical wavelength 'λ3' does not overlap with the fourth optical wavelength 'λ4' used by the wireless communication signal (upstream signal) Can be set by DU.

18 is a view showing an embodiment of an RU (wireless communication service apparatus) in a signal distributing apparatus according to an embodiment of the present invention.

18 (i) shows a configuration example of the RU 1810 which is manufactured in the form of a home gateway by combining the PON ONT 1812 and the wireless communication service device 1826. [

18 (i), the RU 1810 includes an optical filter 1811, a PON ONT 1812, an RJ 45 1813, a power source 1814, a controller 1815, a wireless communication service device 1816, And a WiFi module 1817.

The optical filter 1811 transmits the optical signal (combined signal) input to the RU 1810 to the first optical signal for wireless communication service received from the wireless communication base station in the RU 1810, And may transmit the separated first optical signal to the wireless communication service apparatus 1816 and transmit the separated second optical signal to the PON ONT 1812. [

The PON ONT 1812 can provide the FTTH network Internet service to a terminal in the service area (e.g., IPTV, etc.) based on the second optical signal transmitted from the optical filter 1811. [

The wireless communication service apparatus 1816 transmits a wireless communication service (e.g., a WAVE communication service) to a terminal in the service area (e.g., a car terminal, a smart phone, or the like) based on the first optical signal transmitted from the optical filter 1811 .

The WiFi module 1817 can provide a WiFi service to a terminal in the service area (e.g., a smart phone, a notebook computer, etc.) based on the second optical signal transmitted from the PON ONT 1812.

As described above, the RU 1810 can be manufactured in the form of a home gateway capable of providing both a wireless communication service, an Internet service, and a Wi-Fi service.

18 (ii) shows an example of the configuration of the RU 1820 for manufacturing the PON ONT 1812 and the wireless communication service apparatus 1826 separately.

18 (ii), the RU 1820 may be configured to include an optical filter 1821, a PON ONT 1822, an RJ 45 1823, a power supply 1824, and a controller 1825.

That is, the RU 1820 may have a structure in which the PON ONT 1822 for Internet service and the wireless communication service device 1826 for wireless communication service are separated from each other.

The optical filter 1821 can first separate the optical signal (combined signal) input to the RU 1810 from the first optical signal for wireless communication service and the second optical signal for Internet service. Here, the optical filter 1821 may be mounted on the wireless communication service device 1826 or may be a separate independent module.

At this time, the RU 1810 in which the PON ONT 1822 for the Internet service is removed can be used to provide only the wireless communication service to the terminals in the service area.

Hereinafter, the operation flow of the signal distributor 300 according to the embodiments of the present invention will be described in detail with reference to FIG.

19 is a flowchart illustrating a procedure of a signal distribution method according to an embodiment of the present invention.

The signal distributing method according to the present embodiment can be performed by the signal distributing apparatus 300 described above.

Referring to FIG. 19, in step 1910, the signal distributor 300 identifies service areas of a plurality of wireless communication base stations.

For example, when the RUs connected to the plurality of wireless communication base stations and the dedicated network (optical line) are disposed outdoors, the signal distributor 300 can confirm the location of the service area outdoors. 3, when a plurality of RUs (not shown) connected to a plurality of wireless communication base stations (RSEs) are disposed on the road, the signal distributor 300 distributes the WAVE communication service, Can be identified as 'outdoors'.

In step 1920, the signal distributor 300 determines whether to divide the plurality of radio communication base stations including the main RSE (Road Side Equipment) according to the position of the service area.

For example, if the location of the service area is identified as 'outdoors', the signal distributor 300 may decide to distinguish a plurality of wireless communication base stations including the main RSE that performs signal signal distribution.

For example, referring to FIG. 4, the signal distributor 300 may divide a plurality of radio communication base stations into one main RSE 401 and a plurality of slave RSEs 402, 403, and 404. That is, the signal distributor 300 can divide a plurality of radio communication base stations into DU and a plurality of RUs. Here, the main RSE 401 corresponds to DU, and the plurality of slave RSEs 402, 403, and 404 correspond to RUs. In addition, each of the slave RSEs 402, 403, and 404 may be connected to an RU disposed in a service area through a dedicated network.

In another example, when the location of the service area is confirmed as 'indoor', the signal distributor 300 may perform the individual signal distribution of each of the wireless communication base stations without distinguishing the main RSE among the plurality of wireless communication base stations You can decide.

In step 1930, the signal distributor 300 is an RU (Remote Unit) disposed in the service area, and propagates the wireless communication signal through the signal dispersion by the main RSE.

For example, the signal distributor 300 converts a downstream signal of the wireless communication signal into a first optical signal through a single signal dispersion by a main RSE, and converts the first optical signal into a second optical signal, And transmits the plurality of second optical signals to the slave RSE in the wireless communication base station, which is connected to the main RSE and the dedicated network.

4, the signal distributor 300 transmits a downstream signal of a wireless communication signal (e.g., an IF signal, an RF signal, an IQ signal, and the like) to the first optical signal by the main RSE 401 After the conversion, it is possible to optically distribute a plurality of second optical signals corresponding to the number of the slave RSEs 402, 403, and 404. The signal distributor 300 may transmit the second optical signals to the slave RSEs 402, 403, and 404 connected to the main RSE 401 and the dedicated network 405.

At this time, the signal distributor 300 may optically transmit the plurality of second optical signals to the slave RSE using optical wavelengths different from signals transmitted through the dedicated network (optical line). That is, the signal distributor 300 can optically transmit the plurality of second optical signals to the slave RSE using different optical wavelengths so that the optical wavelengths used by the signals to be transmitted and the second optical signals do not overlap.

Also, when the downstream signal is analog, the signal distributor 300 may convert the downstream signal to the first optical signal by switching from the analog form to the digital form by the ADC.

The signal distributor 300 may relay the plurality of second optical signals to each of the RUs connected to the optical ports in the respective slave RSEs via each slave RSE. Also, the signal distributor 300 converts the relayed second optical signal into an RF signal through each RU, transfers the RF signal to the terminal in the service area, and provides the WAVE communication service at the terminal can do.

Alternatively, in step 1940, the signal distributor 300 propagates the wireless communication signal to the RU, via individual signal distribution by each of the plurality of wireless communication base stations.

In another example, if the position of the service area is identified indoors and the division of the main RSE is not determined, the signal distributor 300 distributes the signal of the wireless communication signal A first optical signal is converted into a first optical signal, a first optical signal is combined with a data signal provided to the service area by an FTTH network to generate a combined signal, and the combined signal is converted into a second optical signal Optically distributed to the RUs disposed in the indoor space through the FTTH network.

That is, the signal distributor 300 converts only the downlink signal (downlink) of the wireless communication signal transmitted from the wireless communication base station to the terminal in the service area, and transmits the converted downlink signal to the Internet service And can transmit light to the RU and ONTs arranged in the service area in combination with the optical signal.

9, the signal distributor 300 may convert a downstream signal of a wireless communication signal received from a wireless communication base station or a repeater 910 to a first optical signal by DU 900 . The signal distributor 300 transmits the first optical signal to the data signal converted into an optical signal by an optical line terminal (OLT) 920 in the FTTH network at the optical filters 931 and 932 in the FTTH network, And can overlay (Optic Overlay) to generate the combined signal. The signal distributor 300 may divide the combined signal into a plurality of optical signals through the RNs 941 and 942 in the FTTH network and transmit the optical signals to the respective RUs 951 to 954 or the ONTs.

The signal distributor 300 separates the combined signal into a downlink signal of the wireless communication signal and the data signal through each of the RUs and transmits the downlink signal of the separated wireless communication signal to the terminal To provide a wireless communication service or to transmit the separated data signal to a terminal in the service area to provide an Internet service or an IPTV service.

12, the signal distributor 300 separates the combined signal into a downstream signal and a data signal of the wireless communication signal through the optical transducer in the RU 1200, The downstream signal of the communication signal can be digitally processed and converted into an RF signal through the DAC. The signal distributor 300 may provide the wireless communication service by transmitting the RF signal to the terminal. At this time, the signal distributor 300 may transmit the combined signal to another RU # 2 connected to an optical port in the optical transducer.

The method according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

300: signal distributor 310:
320: Decision section 330: Transmitting /

Claims (14)

Confirming a service area of a plurality of wireless communication base stations;
Among the plurality of radio communication base stations,
Determining one radio communication base station in a first service area in which a location is identified outdoors as a main RSE (Road Side Equipment);
Dividing a plurality of radio communication base stations in a second service area in which a location is identified indoors into a slave RSE;
Propagating a wireless communication signal through an RU (Remote Unit) disposed in the first service area, through an exclusive signal distribution by the one main RSE; And
Propagating the wireless communication signal to a plurality of RUs disposed in the second service area through individual signal distribution by each of the plurality of slave RSEs
≪ / RTI > The method according to claim 1,
Converting a downstream signal of the wireless communication signal into a first optical signal by the main RSE;
Optically distributing the first optical signal to a plurality of second optical signals; And
Optically transmitting the plurality of second optical signals to the slave RSE connected to the main RSE and a dedicated network
≪ / RTI > 3. The method of claim 2,
The step of performing optical transmission to the slave RSE includes:
Optically transmitting the plurality of second optical signals to the slave RSE using optical wavelengths different from signals transmitted through the dedicated network
≪ / RTI > 3. The method of claim 2,
If the downlink signal is in analog form,
The step of converting into the first optical signal includes:
Converting the downlink signal into the first optical signal by switching from the analog form to the digital form by an ADC (Analog to Digital Converter)
≪ / RTI > 3. The method of claim 2,
Dividing the second optical signal having been optically received in each of the slave RSEs into a plurality of third optical signals through an RN (Remote Node), and performing optical transmission to each of the RUs
≪ / RTI > 3. The method of claim 2,
And relaying the plurality of second optical signals to each of the RUs connected to the optical ports in each slave RSE via each slave RSE
≪ / RTI > The method according to claim 6,
Converting the relayed second optical signal to an RF signal through each RU; And
Transmitting the RF signal to a terminal in the first service area and providing a WAVE communication service in the terminal
≪ / RTI > The method according to claim 1,
Converting a downlink signal of a wireless communication signal into a first optical signal in each of the plurality of slave RSEs;
Combining the first optical signal with a data signal provided to the second service area by a FTTH (Fiber To The Home) network to generate a combined signal; And
Optically distributing the combined signal to a plurality of second optical signals, and performing optical transmission to each of the RUs disposed in the indoor space through the FTTH network
≪ / RTI > 9. The method of claim 8,
The step of generating the combined signal comprises:
In an optical filter in the FTTH network, optically overlaying the first optical signal on the data signal converted into an optical signal by an OLT (Optical Line Terminal) in the FTTH network
≪ / RTI > 9. The method of claim 8,
Separating the combined signal into a downlink signal and a data signal of the wireless communication signal through each of the RUs; And
And transmits a downlink signal of the separated wireless communication signal to a terminal in the second service area to provide a wireless communication service or to transmit the separated data signal to a terminal in the second service area to transmit an Internet service or an IPTV service Steps to Offer
≪ / RTI > The method according to claim 1,
When transmission of an uplink signal of a wireless communication signal from the terminal in the service area to the plurality of wireless communication base stations is requested,
Selecting an uplink signal of a wireless communication signal associated with the management of an NMS (Network Management System) network or optical line length measurement among the uplink signals requested to be transmitted, and transmitting the signal to the plurality of wireless communication base stations
≪ / RTI > 12. The method of claim 11,
Wherein the step of transmitting, to the plurality of radio communication base stations,
Transmitting the uplink signal to the plurality of wireless communication base stations using an optical wavelength different from a downlink signal of a wireless communication signal propagated from the plurality of wireless communication base stations to the terminal in the service area
≪ / RTI > 12. The method of claim 11,
Wherein the step of transmitting, to the plurality of radio communication base stations,
Switching on an optical signal generating function set to off in each of the RUs as an uplink signal transmission command is generated in the plurality of radio communication base stations; And
Transmitting the uplink signal received from the terminal in the service area to each of the plurality of wireless communication base stations through the RUs whose optical signal generating function is switched on
≪ / RTI > A confirmation unit for confirming a service area of a plurality of wireless communication base stations;
Among the plurality of radio communication base stations,
A determination unit for determining one radio communication base station in a first service area whose location is identified outdoors as a main RSE and a plurality of radio communication bases in a second service area whose location is confirmed indoors as a slave RSE; ; And
A plurality of RUs disposed in the first service area, and a plurality of RUs disposed in the second service area, the plurality of RUs transmitting a wireless communication signal through a single signal distribution by the one main RSE, And a transmitting / receiving unit for transmitting the wireless communication signal,
≪ / RTI >

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