KR20100003446A - System for transmitting moving picture law total enforcement and method thereof - Google Patents

Abstract

PURPOSE: A mixed digital optical repeating system and a method thereof using a single optical wavelength for classifying the different RF frequency of a subscriber terminal are provided to transmit band frames between a base station and a subscriber terminal. CONSTITUTION: A doner(100) receives a first radio frequency signal. The doner generates the first radio frequency signal as the first band signal. The doner includes the first band data and terminal identification data. The doner the first band frames the multiplex The multiplexed first band frames is transmitted to the remote(200). The doner reads out second band data. The doner transmits the second radio frequency signal to the base station.

Description

Hybrid digital optical relay system using single light wavelength and method therefor {SYSTEM FOR TRANSMITTING MOVING PICTURE LAW TOTAL ENFORCEMENT AND METHOD THEREOF}

The present invention relates to a digital optical relay system and a method thereof, and more particularly, to a hybrid digital optical relay system using a single optical wavelength providing a band frame through a single optical beam between a plurality of base stations and subscriber stations having different RF frequencies. And to a method thereof.

In general, for two-way optical communication, both a donor connected to a base station and a remote connected to a subscriber station transmit and receive data using wavelengths having different frequencies, and data transmission and reception are performed using an optical repeater. It is transmitted through Repeater.

In detail, the donor transmits data to the remote at an optical wavelength of a specific frequency, and the remote receives the data at an optical wavelength having a different frequency from that of the frequency received from the donor. In general, the data downlink between the donor and the remote uses an optical wavelength having a frequency of 1550 nm, and uses an optical wavelength having a frequency of 1310 nm for the uplink.

In addition, the optical wavelength for transmitting data remotely to each donor is also transmitted at different frequencies, which means that the data transmission between the donor and the remote depends on the communication capacity, optical output, transmission distance, optical antenna gain, light receiving element sensitivity and noise. It must match the optical wavelength of the preset frequency, and the data transmission between the remote and the donor is accompanied by the same process.

For example, donors based on 2G, 2.5G, 3G, and WiBro (WiBro) transmit data through optical wavelengths having different frequencies, and the optical repeaters also relay different frequencies. It has a structure which operates separately corresponding to the light wavelength which it has.

However, the optical relay system as described above not only has to have an optical repeater for data transmission relay for each donor but also relays optical wavelengths having different frequencies for each donor based on 2G, 2.5G, 3G and WiBro. The optical repeater has a structure that must be provided so as to correspond to the donor, resulting in resource waste such as duplication of facility investment due to the optical line installation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is possible to classify different RF frequencies of a plurality of base stations and subscriber stations, and to use a single optical wavelength to transmit band frame transmission between a donor and a remote of a repeater through a single optical line. It is a characteristic purpose to provide a digital optical relay system and a method thereof.

The mixed digital optical relay system using a single optical wavelength according to the present invention for achieving the technical problem is, by receiving a first RF signal including the terminal identification data from a plurality of base stations to convert to a first IF signal and digitized The first band frame is generated as one band signal, the first band data and the terminal identification data included in the first band signal are read out, added together to correspond to the base stations, and the first band frame is generated, and the generated first band frames are multiplexed. The second band data is decoded into a second band signal according to base station identification data included in the second band frames received from the remote and demultiplexed from the remote, and decoded into a second band signal. Converts and decodes the second RF signal into a second IF signal to a base station corresponding to the base station identification data; The first band data is read and decoded into the first band signal according to the terminal identification data included in the donor to be transmitted and the first band frame received and demultiplexed from the donor through a single optical path, and decoded into the first band signal. Transmitting the first RF signal, which has been converted to the first IF signal and decoded, is transmitted to the subscriber station corresponding to the terminal identification data. Generates a second band signal through conversion and digitization, reads out second band data and base station identification data included in the second band signal, adds them to correspond to subscriber stations, and generates a second band frame. And a remote for multiplexing the second band frames and transmitting them to the donor through a single optical path.

The donor may also receive a first RF signal including terminal identification data from a plurality of base stations, classify it according to an optical wavelength, convert it into a first IF signal, and digitize it to generate a first band signal. An IF frequency conversion module, a first band data generation module that reads the first band data and the terminal identification data included in the first band signal, and adds the first band data to the terminal identification data corresponding to each base station to add the first band data; A first band frame generation module for generating a band frame, a first CWDM MUX for multiplexing the generated plurality of first band frames and transmitting them remotely through a single optical fiber, and a plurality of second band frames received from the remote The second CWDM DEMUX to multiplex and the second band to read the second band data according to the base station identification data included in the demultiplexed second band frame. A base station for converting a frame decoding module, a second band data decoding module that decodes the second band data into a second band signal, and converting the second band signal into a second IF signal and analogizing and decoding the second RF signal. A second RF frequency conversion module for transmitting to the base station corresponding to the identification data.

In addition, the first band frame is a first band which is divided into base stations at predetermined positions according to a frame generation structure based on a predetermined most significant bit (MSB) and least significant bit (LSB). The data and the terminal identification data are added and generated.

In addition, the terminal identification data is characterized in that the remote receiving the first band frame is the data to distinguish and decode the first band data included in the first band frame to correspond to a plurality of base stations.

The remote may further include first CWDM DEMUX for demultiplexing a plurality of first band frames received from a donor through a single optical path, and first band data according to terminal identification data included in the demultiplexed first band frame. A first band frame decoding module to read out, a first band data decoding module to decode the read first band data into a first band signal, and convert and decode the first band signal into a first IF signal A first RF frequency conversion module for transmitting the first RF signal to a subscriber station corresponding to the terminal identification data, and receiving RF signals including base station identification data from a plurality of subscriber stations and classifying them according to the wavelength of light; A second IF frequency conversion module converting and digitizing the signal to generate a second band signal, and second band data and base station identification data included in the second band signal; A second band data generation module for reading the second band data, a second band frame generation module for adding the second band data to base station identification data corresponding to each subscriber station, and generating a second band frame, and a plurality of generated second bands And a second CWDM MUX to multiplex the frame and transmit it to the donor over a single optical path.

The first band frame decoding module may selectively extract only the first bend data corresponding to the terminal identification data.

The first RF frequency conversion module may further include a linear power amplifier configured to amplify the first RF signal to a predetermined predetermined size.

The second IF frequency conversion module may further include a low noise amplifier for amplifying the second RF signal to a predetermined predetermined size.

On the other hand, in the mixed digital optical relay method using a single light wavelength according to the present invention, the donor receives the first RF signal including the terminal identification data from a plurality of base stations, and converts into an IF signal and generates a first band signal through digitization In operation S10, the first band data and the terminal identification data included in the first band signal are read and the first band data and the terminal identification data are added to correspond to the plurality of base stations to generate a first band frame. In operation S20, the first process of multiplexing the generated first band frames and transmitting them remotely through a single optical fiber (S30), demultiplexing the first band frames received by the remote apparatus (S40), and demultiplexing the first band frames The first band data and the terminal identification data included in the band frame are read and decoded into a first band signal (S50), and the decoded first band signal is converted into a first IF signal. A second process of transmitting the first RF signal decoded to the subscriber terminal corresponding to the terminal identification data (S60), and the remote receiving the second RF signal including the base station identification data from the plurality of subscriber terminals; The second band signal is generated through conversion and digitization to the second IF signal (S70), the second band data and the base station identification data included in the second band signal are read, and the second band data and the base station identification data are read. A third process is added to correspond to the plurality of subscriber stations to generate a second band frame (S80), a third process of multiplexing the generated second bandframes and transmitting them to the donor through a single optical fiber (S90), and the donor received Demultiplexing the second band frames (S100), reading the second band data and the base station identification data included in the demultiplexed second band frame, and decoding them into a second band signal; And a fourth process of converting and decoding the decoded second band signal into a second IF signal and transmitting the decoded second RF signal to the base station corresponding to the base station identification data (S120). .

The step S20 may include reading first band data and terminal identification data included in the first band signal, and reading the first band data according to a predetermined highest bit and least significant bit based frame generation structure. And classifying the plurality of base stations into predetermined positions, and generating the first band frame by adding the separated first band data to the terminal identification data.

In addition, after the step S22, if the read first band data corresponds only to a single base station, the method further includes inserting stuffing data into an area other than the first band data located to correspond to the single base station.

The step S80 may include: reading second band data and base station identification data included in the second band signal, and reading the second band data according to a predetermined most significant bit and least significant bit based frame generation structure. And classifying each of the subscriber stations into a predetermined position and adding the second band data, which are divided into base station identification data, to generate a second band frame.

According to the present invention as described above, based on 2G, 2.5G and 3G to provide a band frame transmission between a plurality of base stations and subscriber stations having different RF frequencies in a single configuration of the donor and remote connected to a single optical fiber It works.

Band frame transmission is possible only with a single optical fiber connected to donor and remote, and there is an effect that it can be mixed and operated locally regardless of in-building, outdoor and tunnel type relay system.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It should be interpreted to mean meanings and concepts. In addition, when it is determined that the detailed description of the known function and its configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

The mixed digital optical relay system S using a single light wavelength according to the present invention includes a donor 100 and a remote 200, as shown in FIG.

Hereinafter, the description will be omitted, but data transmission between the base station 10 and the donor 100 and the subscriber station 30 and the remote 200 according to the present invention is performed through an information communication network, and the donor 100 and the remote ( It is assumed that data transmission between 200 is performed through a single optical line 20.

In addition, the base station 10 according to the present invention is composed of a plurality of the first RF signal of the optical wavelength having a frequency band based on 2G, 2.5G and 3G to the donor 100 and corresponding to the second RF Receiving a signal, the plurality of subscriber station 30 is configured to remotely transmit a second RF signal of an optical wavelength having a frequency band based on 2G, 2.5G and 3G corresponding to the received first RF signal. I assume.

In addition, it is assumed that the donor 100 and the remote 200 according to the present invention transmit a band frame by being mixed with each other regardless of the in-building, outdoor, and tunnel type system through the single optical path 20.

The donor 100 receives a first RF signal including terminal identification data from a plurality of base stations 10, converts the first RF signal into a first IF (Intermediate Frequence) signal, and generates a first band signal through digitization. The first band data and the terminal identification data included in the first band signal are read out, added to correspond to the base stations 10, and are generated as first band frames, and the generated first band frames are multiplexed. Transmit to the remote (200) via (20).

In addition, the second band data is read and generated as the second band signal according to the base station identification data included in the second band frames received and demultiplexed from the remote 200 through the single optical path 20, and the second band signal is generated. The second RF signal generated by converting and analogizing the band signal into the second IF signal is transmitted to the base station 10 corresponding to the base station identification data.

The donor 100 as described above includes a first IF frequency conversion module 110, a first band data generation module 120, a first band frame generation module 130, a first CWDM MUX 140, and a second CWDM. DEMUX (150), the second band frame decoding module 160, the second band data decoding module 170 and the second RF frequency conversion module 180, specifically, with reference to Figures 3 to 5 below same.

The first IF frequency conversion module 110 receives RF signals including terminal identification data from a plurality of base stations 10, classifies them according to optical wavelengths, converts them into first IF signals, and digitizes the first band signals. Create

The first band data generation module 120 reads data included in the first band signal received from the IF frequency conversion module 110 to convert the first band data and the terminal identification data to the first band frame generation module 130. Is authorized.

The first band frame generation module 130 adds the first band frame generated by adding the first band data to the terminal identification data corresponding to each base station 10 to the first CWDM MUX (Coarse Wavelength Division Multiplexing Multiplexer) 140. Is authorized.

Referring to FIG. 4, the first band frame may be configured to have a base station 10 at a predetermined position according to a frame generation structure based on a predetermined most significant bit (MSB) and least significant bit (LSB). The first band data and the terminal identification data, which are divided and positioned according to), are added and generated.

In addition, as shown in FIG. 5, when the aforementioned first IF frequency conversion module 110 receives the first RF signal from a single base station 10, for example, the base station 10 is based on 3G. If the first RF signal having an optical wavelength having a frequency band is transmitted to the first IF frequency conversion module 110, the data other than the first band data positioned to correspond to the base station 10 is filled with data (hereinafter, 'Stuffing'). Data ').

The terminal identification data may be classified such that the first CWDM DEMUX 210 of the remote 200 receiving the first band frames corresponds to the plurality of base stations 10 by the first CWDM DEMUX 210 corresponding to the first band frames. To decode the data.

The first CWDM MUX 140 multiplexes a plurality of first band frames received from the first band frame generation module 130 and transmits the multiplexed first band frames to the remote 200 through the single optical beam 20.

Meanwhile, referring to FIG. 6, the second CWDM Coarse Wavelength Division Multiplexing DeMultiplexer (DEMUX) 150 demultiplexes a plurality of second band frames received from the remote 200 through a single optical line 20 to perform a second band. It is applied to the frame decoding module 160.

The second band frame decoding module 160 reads the second band data according to the base station identification data included in the demultiplexed second band frame, and the second band data decoding module 170 reads the read second band data. Convert to a second band signal.

The second RF frequency conversion module 180 converts the second band signal into a second IF signal and transmits the analogized and decoded second RF signal to the base station 10 corresponding to the base station identification data.

The remote 200 reads the first band data according to the terminal identification data included in the first band frame received from the donor 100 through the single optical beam 20 and demultiplexed to generate the first band signal, The first RF signal generated by converting and analogizing the first band signal into the first IF signal is transmitted to the subscriber station 30 corresponding to the terminal identification data.

In addition, the second RF signal including the base station identification data is received from the plurality of subscriber stations 30 and converted into a second IF signal to generate a second band signal through digitization, and the second band signal included in the second band signal. The band data and the base station identification data are read out, added together to correspond to the subscriber stations 30, and the second band frame is generated. To send).

The remote 200 as described above includes a first CWDM DEMUX 210, a first band frame decoding module 220, a first band data decoding module 230, a first RF frequency conversion module 240, and a second IF. A frequency conversion module 250, a second band data generation module 260, a second band frame generation module 270 and a second CWDM MUX 280, which will be described in detail with reference to Figs. .

As shown in FIG. 3, the first CWDM DEMUX 210 demultiplexes a plurality of first band frames received from the donor 100 through a single optical line 20 to decode the first band frame decoding module 220. Is applied.

The first band frame decoding module 220 reads the first band data according to the terminal identification data included in the demultiplexed first band frame, and the first band data decoding module 230 reads the read first band data. It is generated as a first band signal.

Here, the first band frame decoding module 220 may selectively extract only the first bend data corresponding to the terminal identification data among the first bend data.

That is, as shown in FIG. 7, the first bend frame decoding module 220 included in the plurality of remotes 200 is selected as the first bend data, 2.5G, respectively selected by 2G so as to correspond to the terminal identification data. The first bend data and the first bend data selected by 3G may be extracted and applied to the first band data decoding module 230, respectively.

The first RF frequency conversion module 240 converts and analogizes the first band signal into the first IF signal and transmits the decoded first RF signal to the subscriber station 30 corresponding to the terminal identification data. Here, the first RF signal generated by the first RF frequency conversion module 240 is amplified to a predetermined size through a linear power amplifier (not shown) provided therein.

As shown in FIG. 6, the second IF frequency conversion module 250 receives RF signals including base station identification data from the plurality of subscriber stations 30, classifies them according to optical wavelengths, and converts them into second IF signals. And digitizing to generate a second band signal. Here, the second RF signal generated by the second IF frequency conversion module 250 is amplified to a predetermined size through a low noise amplifier (not shown) provided therein.

The second band data generation module 260 reads the data included in the second band signal received from the second IF frequency conversion module 250 to generate the second band data and the base station identification data. Is applied.

The second band frame generation module 270 applies the second band frame generated by adding the second band data to corresponding base station identification data for each subscriber station 30 to the second CWDM MUX 280.

The second CWDM MUX 280 multiplexes the plurality of second band frames received from the second band frame generation module 270 and transmits the multiplexed second band frames to the donor 100 through the single optical beam 20.

The hybrid digital optical relay method using the single optical wavelength using the mixed digital optical relay system S using the single optical wavelength according to the present invention described above will be described with reference to FIGS. 8 to 10.

As shown in FIG. 8, the donor 100 receives the first RF signal including the terminal identification data from the plurality of base stations 10 and generates the first band signal through conversion and digitization into an IF signal ( S10), the first band data and the terminal identification data included in the first band signal are read and the first band data and the terminal identification data are added to correspond to the plurality of base stations 10 to generate a first band frame. In operation S20, the generated first band frames are multiplexed and transmitted to the remote 200 through the single optical path 20 (S30).

Subsequently, the remote 200 demultiplexes the first band frames received from the donor 100 through the single optical beam 20 (S40), and the first band data and the terminal included in the demultiplexed first band frame. The identification data is read and decoded into a first band signal (S50), the first band signal is converted into a first IF signal, and the analog signal is decoded into a subscriber station 30 corresponding to the terminal identification data. Transmit (S60).

Meanwhile, the remote 200 receives the second RF signal including the base station identification data from the plurality of subscriber stations 30 and generates the second band signal through conversion and digitization into the second IF signal (S70). In addition to reading the second band data and the base station identification data included in the two-band signal, adding the second band data and the base station identification data to correspond to the plurality of subscriber stations 30 to generate a second band frame (S80). In operation S90, the generated second band frames are multiplexed and transmitted to the donor 100 through the single optical path 20.

The donor 100 demultiplexes the second band frames received from the remote 200 through the single optical beam 20 (S100), and the second band data and the base station included in the demultiplexed second band frame. The base station 10 which reads the identification data and decodes it into a second band signal (S110), converts and decodes the decoded second band signal into a second IF signal and converts the decoded second RF signal to the base station identification data. To transmit (S120).

In detail, as shown in FIG. 8, in operation S20, the first band data and the terminal identification data included in the first band signal may be read (S21), and the read first band data may be preset. At step S22, the plurality of base stations 10 are separated and positioned at predetermined positions according to a frame generation structure based on the most significant bit and the least significant bit, and the first band data separated from the first band data is added to the terminal identification data. In step S23, a band frame is generated.

After the step S22, if the read first band data corresponds to the single base station 10 only, inserting stuffing data into an area other than the first band data positioned to correspond to the single base station 10 (S24). It includes more.

As shown in FIG. 9, in operation S80, the second band data and the base station identification data included in the second band signal may be read (S81), and the read second band data may be preset. At step S82, the second terminal data is divided into second band data and the second band data separated from the base station identification data are added to the subscriber station 30 at a predetermined position according to the most significant bit and least significant bit based frame generation structure. In step S83, a frame is generated.

As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is a view showing a conventional digital optical relay system.

2 is a view showing the configuration of a hybrid digital optical relay system using a single light wavelength according to the present invention.

3 is a diagram illustrating a first RF signal transmitted from a base station to a subscriber station according to a hybrid digital optical relay system using a single optical wavelength of the present invention.

4 is a diagram illustrating multiplexing and demultiplexing of a first band frame and a second band frame according to a hybrid digital optical relay system using a single optical wavelength of the present invention.

5 is a diagram illustrating a detailed configuration of RF signal transmission and band data between a single base station and a subscriber station according to a hybrid digital optical relay system using a single optical wavelength of the present invention.

6 is a view showing that a second RF signal is transmitted from a subscriber station to a base station according to a mixed digital optical relay system using a single optical wavelength of the present invention.

7 is a view showing a first bend frame decoding module included in a plurality of remotes of a hybrid digital optical relay system using a single optical wavelength according to the present invention.

8 is a view showing a hybrid digital optical relay method using a single light wavelength according to the present invention.

9 is a view showing step S20 according to the hybrid digital optical relay method using a single optical wavelength of the present invention.

10 is a view showing step S80 according to the hybrid digital optical relay method using a single optical wavelength of the present invention.

** Description of symbols for the main parts of the drawing **

S: Hybrid Digital Optical Relay System Using Single Light Wavelength

10: base station 20: single light path

30: subscriber terminal 100: donor

110: first IF frequency conversion module 120: first band data generation module

130: first band frame generation module 140: first CWDM MUX

150: second CWDM DEMUX 160: second band frame decoding module

170: second band data decoding module 180: second RF frequency conversion module

200: remote 210: first CWDM DEMUX

220: first band frame decoding module 230: first band data decoding module

240: first RF frequency conversion module 250: second IF frequency conversion module

260: second band frame generation module 270: second band frame generation module

280: Second CWDM MUX

Claims (12)

In a mixed digital optical relay system using a single optical wavelength, Receiving a first RF signal including the terminal identification data from a plurality of base stations 10, converts into a first IF signal and generates a first band signal through digitization, the first band data included in the first band signal And reading the terminal identification data and adding them to correspond to the base stations 10 to generate the first band frame, and multiplexing the generated first band frames to the remote 200 through the single optical beam 20. The second band data is read and decoded into a second band signal according to the base station identification data included in the second band frames received from the remote 200 and demultiplexed, and the second band signal is decoded into a second band signal. A donor 100 for converting and converting an analog signal into an IF signal and transmitting the decoded second RF signal to the base station 10 corresponding to the base station identification data; And The first band data is read and decoded into a first band signal according to the terminal identification data included in the first band frame received and demultiplexed from the donor 100 through the single optical path 20, and then decoded into a first band signal. Converting and analogizing a 1-band signal into a first IF signal and transmitting the decoded first RF signal to the subscriber station 30 corresponding to the terminal identification data, and including the base station identification data from the subscriber station 30. Receives a second RF signal, converts into a second IF signal and generates a second band signal through digitization, and reads out the second band data and base station identification data included in the second band signal and the subscriber terminal ( The second band frame may be added to correspond to the first and second band frames, and the second band frames may be multiplexed and transmitted to the donor 100 through the single optical beam 20. Bit (200); Mixed-type digital optical relay system using a single light wavelength, characterized in that it comprises a. The method of claim 1, The donor 100, A first IF frequency for receiving a first RF signal including the terminal identification data from the plurality of base stations 10, classifies according to the optical wavelength, converts into a first IF signal, and digitizes to generate a first band signal. A conversion module 110; A first band data generation module 120 for reading first band data and terminal identification data included in the first band signal; A first band frame generation module 130 for generating a first band frame by adding the first band data to terminal identification data corresponding to each base station 10; A first CWDM MUX (140) for multiplexing the generated plurality of first band frames and transmitting them to the remote (200) through the single optical path (20); A second CWDM DEMUX 150 for demultiplexing a plurality of second band frames received from the remote 200; A second band frame decoding module 160 for reading second band data according to base station identification data included in the demultiplexed second band frame; A second band data decoding module 170 for decoding the second band data into a second band signal; And A second RF frequency conversion module 180 for converting the second band signal into a second IF signal and transmitting a second RF signal, which is analogized and decoded, to the base station 10 corresponding to the base station identification data; Hybrid digital optical relay system using a single light wavelength, characterized in that it comprises a. The method of claim 1, The first band frame, Identification of the first band data and the terminal located separately by the base station 10 at a predetermined position according to a frame generation structure based on a predetermined most significant bit (MSB) and least significant bit (LSB) Mixed digital optical relay system using a single light wavelength, characterized in that the data is added to generate. The method of claim 1, The terminal identification data, The single optical wavelength is characterized in that the remote 200 receiving the first band frame is divided to decode the first band data included in the first band frame to correspond to the plurality of base stations (10). Hybrid digital optical relay system using The method of claim 1, The remote 200, A first CWDM DEMUX 210 for demultiplexing a plurality of first band frames received from the donor 100 through the single optical path 20; A first band frame decoding module 220 for reading first band data according to terminal identification data included in the demultiplexed first band frame; A first band data decoding module 230 for decoding the read first band data into a first band signal; A first RF frequency conversion module 240 for converting and analogizing the first band signal into a first IF signal and transmitting the decoded first RF signal to the subscriber station 30 corresponding to the terminal identification data; A second IF frequency conversion module receiving RF signals including base station identification data from the plurality of subscriber stations 30, classifying them according to optical wavelengths, converting and digitizing them into second IF signals, and generating second band signals; 250); A second band data generation module 260 for reading second band data and base station identification data included in the second band signal; A second band frame generation module (270) for generating a second band frame by adding the second band data to base station identification data corresponding to each subscriber station (30); And A second CWDM MUX 280 for multiplexing the generated plurality of second band frames and transmitting them to the donor 100 through the single optical path 20; Hybrid digital optical relay system using a single light wavelength, characterized in that it comprises a. The method of claim 5, wherein The first band frame decoding module 220, And selectively extracting only the first bend data corresponding to the terminal identification data. The method of claim 5, wherein The first RF frequency conversion module 240, A linear power amplifier for amplifying the first RF signal to a predetermined predetermined size; Mixed-type digital optical relay system using a single light wavelength, characterized in that it further comprises. The method of claim 5, wherein The second IF frequency conversion module 250, A low noise amplifier for amplifying the second RF signal to a predetermined predetermined size; Mixed-type digital optical relay system using a single light wavelength, characterized in that it further comprises. In the mixed digital optical relay method using a single light wavelength, The donor 100 receives the first RF signal including the terminal identification data from the plurality of base stations 10 and generates a first band signal through conversion and digitization into an IF signal (S10). The first band data and the terminal identification data are read together and the first band data and the terminal identification data are added to correspond to the plurality of base stations 10 to generate a first band frame (S20). A first process of multiplexing the first band frames to be transmitted (S30) to the remote 200 through a single optical path 20; Demultiplexing the first band frames received by the remote 200 (S40), reading the first band data and the terminal identification data included in the demultiplexed first band frame and decoding them into a first band signal (S50). A second step of converting and decoding the decoded first band signal into a first IF signal and transmitting the decoded first RF signal to the subscriber station 30 corresponding to the terminal identification data (S60); The remote 200 receives a second RF signal including base station identification data from the plurality of subscriber stations 30, converts it into a second IF signal, and generates a second band signal through digitization (S70). Read the second band data and the base station identification data included in the two-band signal, and adds the second band data and the base station identification data to correspond to the plurality of subscriber stations 30 to generate a second band frame (S80), a third process of multiplexing the generated second band frame to transmit (S90) to the donor (100) through the single optical path (20); And The donor 100 demultiplexes the received second band frames (S100), reads the second band data and the base station identification data included in the demultiplexed second band frame, and decodes them into a second band signal (S110). A fourth step of converting (S120) the decoded second band signal into a second IF signal and transmitting the decoded second RF signal to the base station 10 corresponding to the base station identification data; Mixed-type digital optical relay method using a single light wavelength, characterized in that it comprises a. The method of claim 9, The step S20, Reading first band data and terminal identification data included in the first band signal (S21); Placing the read first band data separately in the plurality of base stations (10) at predetermined positions according to a frame generation structure based on a predetermined most significant bit and a least significant bit (S22); And Generating a first band frame by adding divided first band data to the terminal identification data (S23); Mixed digital optical relay method using a single light wavelength, characterized in that consisting of. The method of claim 10, After the step S22, Inserting stuffing data into an area other than the first band data positioned to correspond to the single base station 10 when the read first band data corresponds only to the single base station 10 (S24); Mixed digital optical relay method using a single light wavelength, characterized in that it further comprises. The method of claim 9, The S80 step, Reading second band data and base station identification data included in the second band signal (S81); Placing the read second band data separately in the subscriber terminal 30 at a predetermined position according to a frame generation structure based on a predetermined most significant bit and a least significant bit (S82); And Generating a second band frame by adding divided second band data to the base station identification data (S83); Mixed digital optical relay method using a single light wavelength, characterized in that consisting of.

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