KR100404914B1 - Point-to-point tranceiver and method - Google Patents

Abstract

PURPOSE: A point-to-point transceiving system is provided to install many RF connection ports for inputting many signals in one interface, and to combine signals received from the RF connection ports, so as to process the signals with one data stream. CONSTITUTION: Many RF devices(100,110,120,130) are connected to many RF connection ports of an interface(200), and transmit RF signals through an antenna under control of the interface(200), then receive RF signals transmitted from many base stations by frequency to output the RF signals to the interface(200). The interface(200) converts data to be transmitted to an exterior into RF signals having different frequencies according to many users' requests, and interfaces the RF signals to make the signals transmitted at the same time. The interface(200) inputs the RF signals received with each different frequency channel from the RF devices(100,110,120,130), and processes the signals. A subscriber access device(300) enables bidirectional high-speed data communication by using an empty band of a cable TV network. A router(400) promotes message transmissions on a data network such as LAN.

Description

Point-to-point transmission and reception system and method thereof {POINT-TO-POINT TRANCEIVER AND METHOD}

The present invention relates to a point-to-point transmission and reception system and a method thereof.

More specifically, a point-to-point transmission and reception for combining a signal received from a plurality of RF connection ports to be processed as a data stream by having a plurality of RF connection ports for receiving a plurality of signals in one interface means A system and method thereof are provided.

In general, point-to-point communication network is the simplest type of communication network in which each station is directly connected to each other.

Therefore, the existing point-to-point equipment has one transmission interface means, one transmission RF means, and one transmission antenna, and one reception antenna, reception RF means, and reception interface means should be provided.

That is, when the same point-to-point radio station transmits / receives a signal from a radio station in a plurality of areas, it is possible to perform a communication service only if it has the same number of transceivers as the number of radio stations.

Therefore, when constructing a communication environment using an existing point-to-point communication network, there is a problem in that facility investment costs are increased because the interface means must be provided as many as the number of radio stations included in the communication service environment.

An object of the present invention is to provide a plurality of RF connection ports for receiving a plurality of signals in one interface means to solve the above-mentioned problems, combining the signals received from the plurality of RF connection ports into a single data stream The present invention provides a point-to-point transmission / reception system and a method of operating the same.

1 is a block diagram for explaining the configuration of a point-to-point transmission and reception system according to the present invention;

2 is a detailed block diagram of the interface means included in FIG. 1;

FIG. 3 is a detailed block diagram of the RF means included in FIG. 1.

* Description of Signs of Main Parts of Drawings *

100, 110 to 130, 100a to 100c: RF means

200, 200a to 200c: interface means

300, 300a to 300c: subscriber access device

400, 400a to 400c: Router

In order to achieve the above object, the present invention provides a point-to-point transmission / reception system according to an embodiment, while receiving data to be transmitted to the outside according to a plurality of user requests and selectively outputting the data to a plurality of output terminals. Interface means for receiving a digital signal converted from an RF signal received through a different frequency channel from the outside through a signal processing; And are respectively connected to a plurality of output terminals of the interface means to receive and convert digital signals into RF signals under the control of the interface means, and to receive and convert RF signals transmitted from a plurality of base stations for each frequency into digital signals. To provide a point-to-point transmission and reception system, characterized in that it comprises a plurality of RF means input to the output terminal of the interface means.

In addition, the present invention in the point-to-point transmission and reception method as an embodiment, while receiving data to be transmitted to the outside in response to a plurality of user requests to selectively output to a plurality of outputs, while the plurality of outputs from the outside An interface process of receiving a digital signal converted from RF signals received through different frequency channels and processing the signal; And receiving a digital signal from a plurality of output terminals of the interface means, converting the digital signal into an RF signal and transmitting the RF signal, receiving RF signals transmitted from a plurality of base stations for each frequency, and converting them into digital signals. The above-mentioned problem is solved by providing a point-to-point transmission / reception method comprising an RF transmission / reception process input to an output terminal of an interface means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a configuration of a point-to-point transmission and reception system according to the present invention, FIG. 2 is a detailed block diagram of the interface means included in FIG. 1, and FIG. 3 is a detailed block diagram of the RF means included in FIG. 1. It is also.

1, the point-to-point transmission / reception system according to the present invention is configured as follows.

The plurality of RF means 100, 110, 120, 130 are respectively connected to a plurality of RF connection ports provided in the interface means 200 to be described later, and through the antenna under the control of the interface means 200. A signal is transmitted, and RF signals transmitted from a plurality of base stations are received for each frequency and outputted to the interface means 200.

The interface means 200 converts data to be transmitted to the outside according to a plurality of user requests into RF signals having different frequencies so that they can be transmitted at the same time, and the RF means 100, 110, 120 ( 130, and receives the RF signal received in the different frequency channels for signal processing.

The subscriber access device 300 is a device that enables high-speed data communication in both directions using an empty band of a cable TV (CATV) network.

Router (400) is a relay device used to facilitate the delivery of messages in a data network, such as a LAN (LAN).

The router 400 may be implemented as a program. When a plurality of PCs are connected to a single network, the router 400 receives the transmitted message and delivers the message to the corresponding PC as a destination through the most efficient path.

The detailed configuration of the interface means is shown in FIG. 2.

The service unit 230 receives and inputs data input from a system connected to Ethernet, or interfaces with a system environment control signal transmitted through a network management server (NMS) according to a user's manipulation.

The main controller 240 controls the entire system to output data input through the service unit 230 or data input according to operations of the plurality of users to one of the plurality of RF means. .

In addition, when there are a plurality of RF to be transmitted to the base station, the main controller 240 is provided with a plurality of RF output ports to transmit by using a channel having a different frequency, the RF output port is provided with the RF means ( 100, 110, 120, 130 are connected.

Meanwhile, as shown in FIG. 1, the main controller 240 manages data input / output states between systems connected to the Ethernet in response to a control signal input from the outside, and sets a system environment transmitted from a network management server. And a network management service unit 241 for receiving a signal to control the entire system and controlling the environment of the entire system to be reset in response to a system environment setting signal input through the network management service unit 241. And a microprocessor 242 for controlling the entire system so that predetermined data can be transmitted and received through the RF means 100, 110, 120, 130, and the input / output in response to a control signal of the microprocessor 242. Supporting to be made by selecting only one of the plurality of input and output states made through the unit 220 On the other hand, the data output from the network management service unit 241 is output to the RF means 100, 110, 120 and 130, or the data input through the RF means the network management service unit ( A multiplexer 243 for outputting to the 241, and a cable multiplexer interface means 244 for interfacing the data input through the multiplexer 243 so that the RF means can be transmitted to another base station through an antenna.

The input / output (I / O) unit 220 outputs data input from the plurality of users to the main control unit 240 and transmits data input from the main control unit 240 to the plurality of users.

The input / output unit 220 has a plurality of input / output lines, and the plurality of input / output lines are provided with different communication service rates, and may be differently assigned according to a user.

The sub controller 210 receives a control signal input from a management device (not shown) managing the interface means 200 and outputs the control signal to the main controller 240.

On the other hand, the sub control unit 210 is supplied with a DC voltage required by the interface means 200.

The power supply unit 250 converts the voltages required by the components of the interface unit 200 using the DC voltage supplied by the sub controller 210, and supplies the converted voltages to the components. do.

Detailed components of the RF means 100, 110, 120, 130 shown in FIG. 1 are as shown in FIG.

As shown in FIG. 3, an external control unit 111 for interfacing a signal input through the interface unit 200 and controlling the entire system, and a base band input through the external control unit 111. The base band unit 112 converts the signal into a digital signal and outputs it to the outside, and converts the digital signal input from the outside into a base band signal and outputs it to the external controller, and the digital input through the base band unit 112. Frequency synthesis / modulator 113 for modulating the signal, up-converting the modulated signal to inter-frequency relay frequency, and transmitting through transmitter 114, and inter-frequency relay frequency received through receiver 115 Demodulating the down-converted signal and demodulating the demodulator 116 and outputting the demodulated signal to the base band unit, and the transmitter 114 or the receiver 115. It consists of a duplexer 117 to separate the signal transmitted or received through the transmission in both directions.

The frequency synthesis / modulator 113 modulates a signal to be transmitted through the transmitter 114 using one of a 4-FSK modulation method and a 16QAM modulation method.

The 4-FSK modulation scheme is one of frequency shift modulation schemes and is applied to a modem for a continuous line. Meanwhile, the 16QAM modulation method is an orthogonal amplitude modulation method, which is applied to a high speed modem as a modulation method that changes not only the phase but also the amplitude of the carrier according to the data signal.

Unexplained reference numeral 118 is a power supply, and supplies the operating power to the RF means 110 to perform a normal operation.

Meanwhile, components of the RF means 100a to 100c, the interface means 200a to 200c, the subscriber access devices 300a to 300c, and the routers 400a to 400c shown in FIG. 1 are also as described above. The detailed description thereof will be omitted.

The operation of the point-to-point transmission / reception system according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings.

When a predetermined RF signal is transmitted through the RF means 100a installed in a predetermined base station, the RF signal is provided with a plurality of RF means 110 provided in a point-to-point transmission / reception system constructed to provide a communication service in a predetermined building. 120) 130.

However, since the RF means 110, 120 and 130 are assigned channels having different frequencies, only the RF signal transmitted using the channel having its own frequency is received.

The RF signal thus received is output to the receiver 115 via the duplexer 117 and input to the demodulator 116 via the receiver 115. The RF signal input to the demodulator 116 is down converted to have an appropriate level of frequency at 38 GHz.

The down-converted RF signal as described above is input to the base band unit 112, and the base band unit 112 converts the RF signal into a digital signal and transmits the converted RF signal to the interface means 200 through the external control unit 111.

Then, the interface means 200 is output to the input / output unit 220 through the cable multiplexer interface means 244 and the multiplexer 243 under the control of the microprocessor 242.

The data input to the input / output unit 220 is transmitted to the user terminal PC through the router 400 through the subscriber access device 300 according to the user's request.

On the other hand, when a user inputs predetermined data through a PC, which is a user terminal, and requests to transmit the input data to a user in another region, the data is interfaced through the router 400 and the subscriber access device 300. Output to the means 200.

Then, the interface means 200 receives the data that the user wants to transmit to other regions through the input / output unit 220, and the multiplexer 243 and the cable multiplexer interface means 244 under the control of the microprocessor 242. Is output.

On the other hand, the data to be transmitted to the other region is to be converted into an RF signal, RF means 110, 120, 130 for receiving the data to convert the RF signal to the multiplexer 243 and the cable multiplexer interface Determined by means 244.

As described above, when the RF means for inputting data inputted by the user and transmitted to another region is determined as an RF means having a reference numeral 110, the base band unit 112 is connected to the base band unit 112 through the external control unit 111 of the RF means 110. Is entered.

The data inputted to the baseband unit 112 is converted into a baseband signal (analog signal), input to the frequency synthesizer / modulator 113, up-converted to a frequency suitable for transmission, and the transmitter 114. It is output to the duplexer 117 through the radiated to the air through the antenna.

Meanwhile, the frequency synthesis / modulator 113 modulates a signal to be transmitted through the transmitter 114 using one of a 4-FSK modulation method and a 16QAM modulation method. May be modulated by another modulation scheme.

As a result, by implementing a plurality of RF means capable of communicating with different channels in a single point-to-point transmission and reception system, it can be easily extended when a separate communication service environment is needed in addition to the communication service environment currently in use. .

Of course, the point-to-point transmission / reception system implemented by the present invention is a manager system (connected to the interface means using RS-232) connected to the interface means 200, in addition to the data communication described in the detailed description of the present invention. Alternatively, when system environment reset data is transmitted through Ethernet connected to the service unit 230 of the interface means 200, the microprocessor of the interface means 200 uses the received system environment reset data to transmit the current system. Reset the environment.

Of course, the configuration of the point-to-point transmission and reception system as described above is implemented by the system so that ordinary users can also easily.

As described above, the present invention includes a connection port for connecting a plurality of RF means to an interface means for establishing a point-to-point communication environment, and to transmit signals to a plurality of radio stations through the RF means. By allowing the signal transmitted from the radio station to be received, it is possible to significantly reduce the facility investment cost by not having to provide an interface means corresponding to the plurality of radio stations.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below It will be appreciated.

Claims (16)

In the point-to-point transmission and reception system, In response to a plurality of user requests, data to be transmitted to the outside is controlled to be selectively output to a plurality of output terminals, and a digital signal obtained by converting an RF signal received from a different frequency channel from the outside through the plurality of output terminals is inputted. Interface means for receiving and processing signals; And It is connected to a plurality of output terminals of the interface means, respectively, receives a digital signal, converts it into an RF signal and transmits it under the control of the interface means, receives RF signals transmitted from a plurality of base stations for each frequency, and converts them into digital signals. And a plurality of RF means for inputting to the output end of the interface means. The method of claim 1, wherein the interface means, A service unit which receives data input from a system connected to an Ethernet interface and receives or interfaces a system configuration control signal transmitted through a network management server (NMS) according to a user's manipulation; A main control unit controlling the entire system to output data input through the service unit or data input according to operations of the plurality of users to one of the plurality of RF means; An input / output (I / O) unit for outputting data input from the plurality of users to the main control unit and transmitting data input from the main control unit to the plurality of users; And And a sub controller configured to receive a control signal input from a management device managing the interface means and output the control signal to the main controller. The method of claim 2, wherein the main control unit, Point-to-point transmission and reception system, characterized in that a plurality of RF output port for outputting the RF to be transmitted to the base station. The method of claim 2, wherein the main control unit, A network management service unit configured to manage data input / output states between systems connected to the Ethernet in response to a control signal input from an external device, and to receive a system environment setting signal transmitted from a network management server and to control the entire system; A microprocessor that controls the environment of the entire system to be reset in response to a system configuration signal input through the network management service unit, and controls the entire system to transmit and receive predetermined data through the RF means; In response to a control signal of the microprocessor, only one state of a plurality of input / output states made through the input / output unit is selected and supported, and data output from the network management service unit is output to the RF means, or A multiplexer configured to output data input through RF means to the network management service unit; And And a cable multiplexer interface means for interfacing data input through the multiplexer so that the RF means can be transmitted to the outside. The method of claim 4, wherein the microprocessor, Point-to-point transmission and reception system, characterized in that for resetting the environment of the entire system in response to the remote control signal input through the Ethernet connected to the service unit. The point-to-point transmission / reception system according to claim 4, wherein the input / output unit includes a plurality of input / output ports, and the plurality of input / output ports provide different communication service rates to users. The method of claim 1, wherein the RF means, An external controller which interfaces a signal input through the interface means and controls the entire system; A base band unit converting the base band signal input through the external control unit into a digital signal and outputting it to the outside, and converting the digital signal input from the outside into a base band signal and outputting the digital signal to the external control unit; A frequency synthesizer / modulator for modulating the digital signal input through the base band unit, up-converting the modulated signal to a frequency for relay between stations, and transmitting the same through a transmitter; A demodulator for down-converting and demodulating a signal having a frequency for relay between stations received through a receiver and outputting the demodulated signal to the base band unit; And And a duplexer which separates a signal transmitted or received through the transmitter or the receiver and transmits the signal in both directions. The point-to-point transmission / reception system according to claim 7, wherein the frequency synthesis / modulation unit modulates a signal to be transmitted through a transmitter using one of a 4-FSK modulation method and a 16QAM modulation method. In the point-to-point transmission and reception method, In response to a plurality of user requests, data to be transmitted to the outside is controlled to be selectively output to a plurality of output terminals, and a digital signal obtained by converting an RF signal received from a different frequency channel from the outside through the plurality of output terminals is inputted. Receive signal processing interface process; And Under the control of the interface means from the plurality of output means of the interface means receives a digital signal converted into an RF signal and transmitted, while receiving the RF signal transmitted from a plurality of base stations for each frequency converted into a digital signal to the interface Point to point transmission and reception method comprising the step of transmitting and receiving RF input to the output terminal of the means. The method of claim 9, wherein the interface process, (1) a process of receiving and inputting data input from a system connected to the Ethernet, or receiving and interfacing a system configuration control signal transmitted through a network management server (NMS) according to a user's operation; (2) controlling the entire system to output data input through the step (1) or data input according to the operation of the plurality of users to one of the plurality of RF means; And (3) allowing the data input from the plurality of users to be transmitted to the outside through the RF means, and transmitting a signal input from the outside to the plurality of users through the RF means. Point-to-point transmission and reception method characterized by. 11. The method of claim 10, wherein said RF means is assigned a channel of a different frequency, said channel being reconfigurable by an operator, administrator, or user. The method of claim 10, wherein the process (2), (2-1) managing data input / output states between systems connected to the Ethernet, and receiving a system environment setting signal transmitted from a network management server so as to control the entire system; And And (2-2) controlling the entire system to be reset in response to the system configuration signal, and controlling the entire system to transmit and receive predetermined data through the RF means. Point transmission and reception method. The method of claim 12, wherein the environment of the entire system is reset in response to the remote control signal input through the Ethernet. 13. The method of claim 12, wherein different communication service rates can be provided to the user. The method of claim 9, wherein the RF transmission and reception process, (A) interfacing the signal processed through the interface process to be transmitted through RF means; (B) converting the base band signal interfaced through the step (A) into a digital signal and outputting it to the outside; (C) modulating the digital signal input through the process (B), up-converting the modulated signal to a frequency for relay between stations, and transmitting the same through a transmitter; (D) down-converting and demodulating a signal having an inter-frequency relay frequency received through a receiver and outputting the demodulated signal to the base band unit; And (E) a point-to-point transmission and reception method comprising the step of separating the signal transmitted or received through the transmitter or receiver to be transmitted in both directions. The method of claim 15, wherein the signal to be transmitted through the transmitter in step (C) is modulated by one of a 4-FSK modulation method and a 16QAM modulation method.