KR0173903B1 - Two-way multimedia transmission and reception system using wireless network - Google Patents

Abstract

The present invention relates to a two-way multimedia transmission and reception system using a wireless network, by dividing a wide area into cells, and having a wireless network control device 100 at the center of each cell to provide various multimedia information to the subscriber wirelessly, and generate to the subscriber. Various data are received by the multimedia transceiver 200 of the cell and sent to the wireless transceiver 100 connected to the multimedia transceiver 200 by the optical path or microwave to relay to other subscribers or perform necessary control In order to provide multimedia services throughout the region, the basic unit is the cell where the multimedia transceiver is located at the center of the unit. The scalability is excellent, and the resources of the wireless network control device can be shared among multiple cells. Has the advantage of high speed data Since the transmission method for the transmission and the function for the low-speed data transmission are combined, the frequency utilization efficiency is high. Therefore, various multimedia services such as low-speed and high-speed data service between the subscriber and the subscriber and data transmission by the user's request are more convenient and inexpensive. It can be easily provided and expanded as new requirements come in the future.

Description

Two-way multimedia transmission and reception system using wireless network

1 is a block diagram of a conventional wireless data system.

2 is a network diagram of a conventional wireless data system.

Figure 3 is a block diagram of an embodiment of a multimedia transmission and reception system using a wireless network according to the present invention.

Figure 4 is a block diagram of an embodiment of a wireless network control apparatus using a microwave according to the present invention.

Figure 5 is a block diagram of an embodiment of a wireless network control apparatus using an optical fiber according to the present invention.

Figure 6 is a block diagram of an embodiment of a multimedia transmission and reception apparatus using microwave according to the present invention.

Figure 7 is a block diagram of an embodiment of a multimedia transmission and reception apparatus using an optical fiber according to the present invention.

8 is a block diagram of an embodiment of a subscriber station apparatus for single subscriber reception according to the present invention.

9 is a block diagram of an embodiment of a subscriber station apparatus for accommodating multiple subscribers according to the present invention.

10 is a block diagram of an embodiment of a transmission and reception unit for multiple subscribers according to the present invention.

Figure 11 is a block diagram of an embodiment of a multiple subscriber coupling unit according to the present invention.

12 is a block diagram of an embodiment of a low-speed data relay device according to the present invention.

13 is an overall radio network diagram according to the present invention.

* Explanation of symbols for main parts of the drawings

100: wireless network control device 200: multimedia transceiver

300: low speed data relay device 400: subscriber station device

The present invention relates to a two-way multimedia transmission and reception system using a wireless network, and in particular, a wide area is divided into cells, and a wireless network control station is provided at the center of each cell to provide various multimedia information to the subscriber wirelessly, The present invention relates to a two-way multimedia transmission and reception system using a wireless network that receives data from a base station of a cell and transmits the data to a multimedia transmission / reception base station and a wireless network control station connected to an optical fiber or microwave to relay to other subscribers or perform necessary control.

1 is a configuration diagram of a conventional wireless data system, in which 1 represents a base station and 2 represents a subscriber device.

The signal transmitted from the subscriber device 2 is received at the base station 1 to perform the necessary processing or to transmit it to the desired subscriber. If the subscriber is in another cell, it transmits wireless data through another base station via a public switched telephone network (PSTN).

2 is a network diagram of a conventional wireless data system, in which 3 is a base station, 4 is a subscriber, 5 is a PSTN switch, 6 is a base station, and 7 is a subscriber.

When the subscriber of the cell 1 transmits a signal to the subscriber of the cell 2, it transmits the signal to the subscriber 7 via the base station 3 of the cell 1, the PSTN switch 5, and the base station 6 of the cell 2, The base station 3 of the cell 1 and the base station 6 of the cell 2 do not have any media server and thus merely perform a relay role.

Therefore, the conventional method as described above can serve a large area, but is generally not suitable for high-speed data transmission such as video because it uses a frequency band of several hundred MHz. There is a problem that is not suitable for multimedia transmission and reception of real-time, high-speed, mass transfer of information via a telephone network (PSTN).

The present invention has been made to solve the problems of the prior art as described above is provided with a wireless network control device having a media server, a low speed data relay device for a low speed data relay to a plurality of base stations with one low speed data relay device Relays the low-speed data of the cell, and the multimedia transceiver at the center of each micro cell can perform multimedia transmission and reception using microwaves from a few GHz to several tens of GHz, and each micro cell The multimedia transmission and reception apparatus in the center of the cell) is to provide a two-way multimedia transmission and reception system using a wireless network that can be connected to the wireless network control device and the optical fiber or microwave to share resources.

The present invention for achieving the above object, Subscriber terminal means for transmitting the data generated from the subscriber by using the microwave and low-frequency, and receives the microwave signal and the low-speed data to output the multimedia data to the subscriber; Low speed data relay means for outputting low speed data generated from said subscriber terminal means to another subscriber or receiving low speed data generated from another subscriber and outputting it to said subscriber terminal means; Located at the center of the micro cell and outputting the multimedia data received using the microwave to the subscriber terminal means, the received low speed data is output to the low speed data relay means, and the microwave signal and the low speed data from the subscriber terminal means At least one multimedia transmission / reception means for receiving and multiplexing and outputting the same, and receiving low-speed data from the low-speed data relay means; And a media server for controlling the entire wireless network and providing multimedia services, and outputting multimedia data to the at least one multimedia transmitting and receiving means using microwaves according to a subscriber's request, wherein the low speed data uses a low frequency. At least one radio network control to output to the low speed data relay means or the at least one multimedia transmission and reception means, to receive a microwave signal from the at least one multimedia transmission and reception means, and to receive the low speed data from the low speed data relay means. It is characterized by having a means.

In addition, another embodiment of the present invention for achieving the above object, the subscriber to transmit the data generated from the subscriber using the microwave and low-frequency, and receives the microwave signal and low-speed data to output the multimedia data to the subscriber Terminal means; Low speed data relay means for outputting low speed data generated from said subscriber terminal means to another subscriber or receiving low speed data generated from another subscriber and outputting it to said subscriber terminal means; It is located at the center of the micro cell and separates the received data using the optical signal, and outputs the multimedia data to the subscriber terminal means, and outputs the low speed data to the low speed data relay means, and the microwave signal and the low speed from the subscriber terminal means. At least one multimedia transmission / reception means for receiving data and multiplexing it and outputting it as an optical signal or receiving low-speed data from the low-speed data relay means; And a media server for controlling an entire wireless network and providing a multimedia service, multiplexing multimedia data and low-speed data using optical signals according to a subscriber's request, and outputting the multiplexed multimedia data to the at least one multimedia transmitting and receiving means. At least one wireless network control means for receiving data from the at least one multimedia transmission and reception means using an optical signal, and the low-speed data is transmitted and received with the low-speed data relay means using a low frequency.

In addition, another embodiment of the present invention for achieving the above object is to transmit the data generated from the subscriber using the microwave and low-frequency, and receives the microwave signal and the low-speed data to output the multimedia data to the subscriber Subscriber station means; Low speed data relay means for outputting low speed data generated from said subscriber terminal means to another subscriber or receiving low speed data generated from another subscriber and outputting it to said subscriber terminal means; It is located at the center of the micro cell and separates the received data using microwaves, and outputs the multimedia data and the low-speed data to the subscriber terminal means, outputs the low-speed data to the low-speed data relay means, the microwave from the subscriber terminal means At least one multimedia transmission / reception means for receiving a signal and low-speed data, multiplexing and outputting the low-speed data, and receiving low-speed data from the low-speed data relay means; And a media server for controlling an entire wireless network and providing a multimedia service, and multiplexing multimedia data and low-speed data using microwaves to output to the at least one multimedia transmitting and receiving means according to a subscriber's request, At least one wireless network control means for receiving multimedia data and low-speed data from the one or more multimedia transmission and reception means using a microwave signal.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

3 is a block diagram of an embodiment of a multimedia transmission and reception system using a wireless network according to the present invention, in which 100 is a wireless network control device, 200 is a multimedia transmission and reception device, 300 is a low speed data relay device, and 400 is a subscriber station device. Respectively. The wireless network control apparatus 100 analyzes the control signal of the subscriber station apparatus 400 received through the multimedia transceiver 200 or the low speed data relay apparatus 300 and relays it to other subscribers. 200) and the other communication network is selected to relay the subscriber's signal.

In addition, the wireless network control device 100 receives a control signal from another communication network subscriber and transmits the control signal to the wireless network subscriber station device 400 through the multimedia transceiver 200 or the low-speed data relay device 300, the subscriber terminal A program in the media server in the wireless network control device 100 is supplied by the control signal generated by the device 400 and received via the multimedia transmission / reception device 200 or the low speed data relay device 300, and the control signal. According to the present invention, the media server output is adjusted or various necessary controls are provided to provide a multimedia service desired by the subscriber.

The wireless network control apparatus 100 is connected to a plurality of multimedia transceivers 200, and the multimedia transceiver 200 transmits and receives information to and from the subscriber station 400 in each cell.

The low speed data relay device 300 transmits the low speed data received according to the control signal received from the subscriber station device 400 to the wireless network control device 100 or to the multimedia transceiver 200. The low-speed data input from the wireless network control device 100 is transmitted to the subscriber station device 400 or the multimedia transmission / reception device 200.

The multimedia transceiver 200 transmits and receives low speed data to and from the subscriber station 400 through the low speed data relay 300, and directly transmits and receives high speed data to and from the subscriber station 400.

The multimedia transceiver 200 adjusts its transmission output according to the control data generated in the subscriber station 400 and the control signal received from the radio network controller 100.

That is, the multimedia transmission / reception apparatus 200 transmits high speed data to the subscriber terminal apparatus 400 by using the omnidirectional microwave transmitter, and the control signal of the subscriber terminal apparatus 400 via the low speed data relay 300. Accordingly, when a subscriber wants to transmit to another subscriber in the same multimedia transceiver 200, the subscriber transmits to another subscriber through the low speed data relay 300.

The low speed data received through the low speed data relay 300 is used to adjust the transmission output of the multimedia transceiver 200 or is relayed to a subscriber in the same cell.

In addition, the multimedia transmission and reception apparatus 200 receives and demultiplexes microwave signals transmitted from the subscriber terminal apparatus 400, and separates and interprets low-speed data so that if the data is to be relayed to subscribers in the same cell, the terminal immediately relays the data. If it is necessary to relay to the subscriber in the cell or the data required for the wireless network control device 100 transmits to the wireless network control device 100 using a microwave.

The subscriber station device 400 transmits low speed general data and control data such as received electric field strength and subscriber information to the wireless network control device 100 and the multimedia transceiver 200 through the low speed data relay 300. The multimedia transceiver 200 transmits and receives a microwave signal carrying high-speed data.

The subscriber station device 400 has a transceiver for transmitting and receiving low speed data and high speed data therein.

The wireless network control device 100 and the multimedia transmission and reception device 200 may be connected not only by using a microwave but also by using an optical fiber.

When the wireless network control device 100 and the multimedia transceiver 200 are connected by using an optical fiber, the wireless network control device 100 and the multimedia transceiver 200 transmit and receive data with an optical signal, and the wireless network control device 100 ) And the low speed data relay 300 transmit and receive the low speed data using a wireless signal.

In addition, the wireless network control apparatus 100 may multiplex low-speed data into a high-speed data signal to transmit and receive data with the multimedia transceiver 200 using a microwave signal.

In this case, the wireless network control apparatus 100 and the low speed data relay 300 do not transmit or receive data with each other, but only use the multimedia transceiver 200 to transmit and receive data.

Figure 4 shows a block diagram of an embodiment of a wireless network control device 100 using a microwave according to the present invention.

The wireless network control apparatus 100 using the microwave according to an embodiment of the present invention, the microwave receiving unit 101 for receiving and outputting a microwave signal, the signal received from the microwave receiving unit 101 at a low frequency A down-converter 102 for converting and outputting the first, a first demodulator 103 for demodulating and outputting the output of the down-converter 102, and a demultiplexer for outputting the first demodulator 103; A first demultiplexer 104, a control signal analyzer 105 for receiving and analyzing control data from the first demultiplexer 104, a low speed data receiver 114 for receiving and outputting low speed data; A second demodulator 115 for demodulating and outputting the output of the low speed data receiver 114, a second demultiplexer 116 for demultiplexing and outputting the output of the second demodulator 115, and the second Control Day from Demultiplexer 116 The control signal from the low speed data control signal analyzer 117, the control signal analyzer 105, and the low speed data control signal analyzer 117 to output a control signal and output the control signal. The system control unit 106, the media server unit 107 for storing and outputting multimedia data under the control of the system control unit 106, the first and second demultiplexing unit under the control of the system control unit 106 A data stream controller 108 for controlling and outputting data input from the 104 and 116 and data input from the media server unit 107, and modulating and outputting multimedia data input from the data stream control unit 108; A first modulator 109, an up-converter 110 for converting the output of the first modulator 109 to a high frequency and outputs, and a microwave for transmitting the output of the up-converter 110 The second modulator 112 for modulating and outputting the low speed data inputted from the data stream controller 108 and the low speed data transmitter 113 for transmitting the output of the second modulator 112. It is provided.

In addition, since the wireless network control apparatus 100 according to another embodiment of the present invention transmits and receives all data using only microwaves, the second modulation unit 112 and the low speed data transmitter (FB) which are functional units for transmitting and receiving low speed data ( 113, the low speed data receiver 114, the second demodulator 115, the second demultiplexer 116, and the second control signal analyzer 117 are not provided.

Looking at the operation of the wireless network control device 100 configured as described above, the wireless network control device 100 using the microwave is a media server unit (media server) to the multimedia transceiver 200 using the microwave transmitter 111. ) Transmits the video and audio signals output from the (107).

The microwave transmitter 111 uses a highly directional antenna for point-to-point transmission.

When transmitting high speed image information or data, the microwave transmitter 111 is used, and when transmitting low speed data, the multimedia transceiver 200 or the low speed is used by using the low speed data transmitter 113 to efficiently use frequency resources. The data is transmitted to the relay device 300.

In addition, when the low speed data transmission / reception unit is not provided, the data stream control unit 108 multiplexes the low speed data and the high speed data and transmits the multiplexed data through the microwave transmitter 111 through the first modulator 109.

The data stream control unit 108 includes an exchange inside thereof to control the system control unit 106 to control the system control unit 106 such as a telephone or fax generated by the subscriber, video on demand (VOD) control data, subscriber information, and the like. Take multiplexed output.

The signal transmitted by the subscriber is received by the multimedia transceiver 200 or the low speed data relay 300 of the micro cell to which the subscriber belongs, and relayed to the radio network controller 100, and a part of the low speed data is transmitted and received by the subscriber. Used in the device 200.

The low speed data received by the low speed data receiver 114 is demodulated through the second demodulator 115 and output to the second demultiplexer 116.

The second demultiplexer 36 demultiplexes the demodulated low-speed data received from the second demodulator 115 and outputs a control signal to the second control signal analyzer 117, and the data stream is a data stream controller. To 108.

The second control signal analyzer 117 analyzes the control signal received from the second demultiplexer 116 and outputs the same to the system controller 106.

The system controller 106 controls the function of the media server 107 according to the analyzed control signal of the second control signal analyzer 117, and controls the data stream controller 108 to control other data. Multiplex with.

The data stream controller 108 outputs the high speed data to be relayed to another subscriber under the control of the system controller 106 to the first modulator 109, and the first modulator 109 outputs the input signal. Is modulated and output to the up converter 110.

The up converter 110 performs frequency conversion on the modulated signal input from the first modulator 109 and transmits the converted signal through the microwave transmitter 111.

In addition, the data stream controller 108 outputs the low speed data to the second modulator 112, and the second modulator 112 modulates the input signal through the low speed data transmitter 113. Send.

The microwave transmission data is output to the down converter unit 102 received from the microwave receiving unit 101.

The down converter 102 performs frequency conversion on the signal received from the microwave receiver 101 and outputs the frequency to the first demodulator 103.

The first demodulator 103 demodulates the signal received from the down converter 102 and outputs it to the first demultiplexer 104, and the first demultiplexer 104 demultiplexes the demodulated data. The control signal is output to the first control signal analyzer 105 and the data stream is output to the data stream controller 108.

The first control signal analyzer 105 analyzes the control signal received from the first demultiplexer 104 and outputs it to the system controller 106.

The system controller 106 controls the function of the media server 107 according to the control signal received from the first control signal analyzer 105, and controls the data stream controller 108.

The other network connection unit 118 is connected to another communication network to transmit and receive control signals to and from the system control unit 106, and to transmit and receive data to and from other communication network subscribers.

The wireless network control device 100 when the wireless network control device 100 transmits / receives data to / from the subscriber station device 400 via only the multimedia transmission / reception device 200 using microwaves has a function for transmitting and receiving low-speed data. The denial second modulator 112, the low speed data transmitter 113, the low speed data receiver 114, the second demodulator 115, the second demultiplexer 116, and the second control signal analyzer 117 It is not equipped.

That is, in the case of high-speed data generated from the subscriber, for example, video conference video data transmission, data is transmitted and received using radio waves of several GHz to several tens of GHz. In this case, all transmission / reception data of the wireless network control apparatus 100 are performed. Is received by the microwave receiving unit 101 through the multimedia transmitting and receiving device 200, all control data and relay data is transmitted to the multimedia transmitting and receiving device 200 via the microwave transmitting unit 111.

The wireless network control apparatus 100 processes the subscriber's data via the multimedia transmission and reception apparatus 200, relays it, and has its own media server, thereby providing the subscriber with multimedia, for example, video, audio, and VOD services. have.

5 is a block diagram of an embodiment of a wireless network control apparatus using an optical fiber according to the present invention.

The wireless network control apparatus 100 using an optical fiber according to another embodiment of the present invention, the optical fiber connection unit 119 for transmitting and receiving data in the optical signal connected to the optical path, and demodulates the signal input from the optical fiber connection unit 119 The optical demodulator 120 outputs the control data from the first demultiplexer 121 and the first demultiplexer 121 to demultiplex and output the output of the optical demodulator 120, and analyzes the control data. And a demodulator for demodulating and outputting the outputs of the control signal analyzer 122, a low speed data receiver 129 for receiving low speed data from the low speed data relay 300, and outputting the low speed data. 130, a low speed data control to receive control data from the second demultiplexer 131 and the second demultiplexer 131 to demultiplex and output the output of the demodulator 130. Signal analysis unit 132, a system controller 123 for controlling a system according to the analyzed control signal of the control signal analyzer 122 and the genital low speed data control signal analyzer 132, and under the control of the system controller 123. The system controller 123 receives the output of the media server 124, the first and second demultiplexers 121, 131 and the output of the media server 124 to store and output data. A data stream controller 125 for processing and outputting data under control, an optical modulator 126 for receiving and modulating and outputting multimedia data from the data stream controller 125 and the data stream controller 125. A modulator 127 for receiving and modulating low-speed data output to the low-speed data relay 300, and outputting the output of the modulator 127 to the low-speed data relay 300. And a data transmission unit in (127).

Referring to the operation of the wireless network control device configured as described above, the wireless network control device 100 using the optical fiber performs transmission and reception of high-speed multimedia data and low-speed data with the multimedia transceiver 200 through the optical fiber connection unit 119. .

The data received by the optical fiber connector 119 is output to the optical demodulator 120, and the optical demodulator 120 demodulates the signal received from the optical fiber connector 119 to output to the first demultiplexer 121.

The first demultiplexer 121 demultiplexes a signal received from the optical demodulator 120 into respective channel signals, and outputs a control signal to the control signal analyzer 122, and the data stream is a data stream controller 125. )

The control signal analyzer 122 analyzes the control signal received from the demultiplexer 121 and outputs the analyzed control signal to the system controller 123.

The system controller 123 controls the data stream controller 125 and the media server unit 124 by using the control signal input from the control signal analyzer 122 to optically input data input to the data stream controller 125. The relay unit 126 relays the data to another subscriber or outputs the data of the media server unit 124.

The media server 124 outputs multimedia data to the data stream controller 125 under the control of the system controller 123.

The data stream controller 125 outputs data input from the demultiplexer 121 through the optical modulator 126, or controls data input from the media server 124 and system controller 123. The information is multiplexed and output to the light modulator 126.

The optical modulator 126 optically modulates the received multimedia data to the optical fiber connection unit 119.

The optical fiber connector 119 outputs a signal input from the optical modulator 126 through the optical fiber.

The other network connection unit 127 enables the connection between the subscriber and other wired and wireless communication networks, and transmits low speed data generated to the subscriber to other communication networks.

The low speed data is received by the low speed data receiver 129 and output to the demodulator 130, and the demodulator 130 demodulates the signal received through the low speed data receiver 129 and the second demultiplexer 131. Output to.

The second demultiplexer 131 demultiplexes the signal received by the demodulator 130, outputs a control signal to the low speed data control signal analyzer 132, and outputs a data string to the data stream controller 125. do.

The low speed data control signal analyzer 132 analyzes the control signal received from the second demultiplexer 131 and outputs the same to the system controller 123.

The system controller 123 controls the data stream controller 125 and the media western unit 124 according to whether the control signal received from the low speed data control signal analyzer 132 is data to be used for itself or data to be relayed. The stream controller 125 outputs the data string received from the second demultiplexer 131 to the modulator 127 and the other network connection unit 133 when data to be relayed under the control of the system controller 123. .

The modulator 127 modulates the low speed data received from the data stream controller 125 and outputs the modulated low speed data through the low speed data transmitter 128.

The other network connection unit 133 transmits / receives a control signal with the system control unit 123 to enable the connection between the subscriber and other wired / wireless communication networks, and transmits and receives data with other communication networks.

Figure 6 shows a block diagram of an embodiment of a multimedia transmission and reception apparatus using a microwave according to the present invention.

Multimedia transmission and reception apparatus 200 according to an embodiment of the present invention, the microwave receiving unit 201 for the control station for receiving and outputting a microwave signal from the wireless network control device 100, the microwave receiving unit 201 for the control station The first down-converter unit 202 converts the output of the low frequency output to a low frequency, and outputs the first demodulator unit 203 and the first demodulator unit 203 to demodulate and output the output of the first down-converter unit 202. A first demultiplexer 204 for demultiplexing and outputting the output of the control unit, a control signal analyzer 205 for analyzing and outputting control data input from the first demultiplexer 204, and the control signal analyzer The system control unit 206 performs system control according to the analyzed control signal of 205, the low speed data receiver 218 for receiving and outputting low speed data generated from the subscriber, and the low speed data receiver 218 for the subscriber. The low speed data is output from the third demodulator 219 for demodulating the output, the third demultiplexer 220 for demultiplexing the output of the third demodulator 219, and outputting the demultiplexed output. The output of the low speed data receiver 224 for the control station for receiving and outputting, the fourth demodulator 225 for demodulating and outputting the output of the low speed data receiver 224 for the control station, and the output of the third demultiplexer 220; The low speed data control signal analyzer 221 which receives the output of the fourth demodulator 225 and analyzes the control signal to output the analyzed control signal and the low speed data, and receives and outputs the microwave signal generated from the subscriber. Demodulating and outputting the output of the second down converter 215 and the second down converter 215 for converting the output of the microwave receiver 214 for the subscriber, the subscriber microwave receiver 214 to a low frequency Second demodulation The second demultiplexer 217 and the system control unit 206 to demultiplex and output the output of the second demodulator 216 and the first demultiplexer 204. And a data stream controller 207 and a data stream controller 207 which receive data from the second demultiplexer 217 and the low speed data control signal analyzer 221 to process and output the input data. A first modulator 208 that receives data transmitted to the wireless network controller 100, modulates and outputs the data, and a first up-converter 209 that converts and outputs the output of the first modulator 208 into high frequency; ), The microwave transmission unit 210 for the control station for outputting the microwave signal of the first up-converter unit 209 to the wireless network control unit 100, and receives the data output to the subscriber from the data stream control unit 207 Second modulator 211 for modulating and outputting And a second up-converter unit 212 for converting the output of the second modulator 211 into high frequency and outputting the microwave signal from the second up-converter unit 212. 213, a third modulator 222, the third modulator 222, and the third modulator 222 that receive and modulate low-speed data output from the data stream controller 207 to the subscriber. Low speed data transmission unit 223 for receiving and outputting the output of the data, the fourth modulation unit 226 for receiving the modulated and output the low-speed data output from the data stream control unit 207 to the wireless network control device 100 And a low speed data transmitter 227 for a control station which receives the output of the fourth modulator 226 and outputs the output to the wireless network control apparatus 100.

Looking at the operation of the multimedia transmission and reception apparatus 200 configured as described above, the data transmitted from the wireless network control device 100 is received by the microwave receiving unit 201 for the control station is the first down converter (202) Is output to

The first down-converter 202 frequency-converts the signal received through the microwave receiver 201 for the control station and outputs the frequency to the first demodulator 203.

The first demodulator 203 demodulates the signal received from the first down converter 202 and outputs the demodulated signal to the first demultiplexer 204, and the first demultiplexer 204 outputs each demodulated signal. The signal is demultiplexed for each channel to output a control signal to the control signal analyzer 205 and a data stream to the data stream controller 207.

The control signal analyzer 205 analyzes the control signal received from the first demultiplexer 204 and outputs the same to the system controller 206.

The system controller 206 outputs a control signal to the data stream controller 207 according to the control signal received from the control signal analyzer 205.

The data stream controller 207 multiplexes the data string received from the first demultiplexer 204 with the low speed data signal for the control station received through the low speed data control signal analyzer 221 under the control of the system controller 206. In this case, the second modulator 211 modulates the second modulator 211 to perform frequency conversion on the second upconverter 212 and then transmits the signal through the subscriber microwave transmitter 213.

The low-speed data generated from the subscriber is received by the low-speed data receiver 218 for the subscriber, demodulated by the third demodulator 219, demultiplexed by the third demultiplexer 220, and the low-speed data control signal analyzer 221. Is output to

The low speed data control signal analyzer 221 analyzes the control data received from the third demultiplexer 220 and outputs the data to the data stream controller 207, and the data stream controller 207 analyzes the low speed data control signal. The signal input from the unit 221 is multiplexed with data necessary for transmission, modulated by the fourth modulator 226, and transmitted to the radio network controller 100 through the low speed data transmitter 227 for the control station, or Modulated by the modulator 208 and output to the first up-converter 209, the first up-converter 209 is frequency-converted to the radio network controller 100 through the microwave transmitter 210 for the control station It is sent out.

The low-speed data signal among the signals received by the microwave receiving unit 201 for the control station is analyzed by the control signal analyzer 205 and under the control of the system control unit 206, and multiplexed by the data stream control unit 207 to obtain a third modulator ( After being modulated through 222, it may be transmitted through the subscriber low speed data transmitter 223.

The subscriber microwave receiver 214 receives a signal carrying high-speed data generated by a subscriber in an omni-directional manner, converts the frequency in the second down converter 215, and outputs the frequency to the second demodulator 216. The demodulator 216 demodulates the received signal and outputs the demodulated signal to the second demultiplexer 217.

The second demultiplexer 74 demultiplexes the signal received from the second demodulator 216 and outputs the demultiplexed signal to the data stream controller 207, and the data stream controller 207 is the second demultiplexer 217. ) And multiplex the signal received from the other signal to the first modulator 208 and transmit the signal to the wireless network controller 11 through the microwave transmitter 210 for the control station, or in the same multimedia transceiver 200 In the case of relaying to the subscriber, it is outputted to the second modulator 211 and transmitted through the subscriber microwave transmitter 213.

The low speed data control signal analyzer 221 analyzes the signal received through the third demultiplexer 220 to determine whether to relay or use the control data, and outputs the information to the data stream controller 207. The data output from the third demultiplexer 220 is output to the data stream controller 207.

The data stream control unit 207 transforms the data into an appropriate form according to various data and control information, and performs a function of multiplexing.

The system controller 206 controls the function of the control signal analyzer 205 to receive control data and to control the data stream controller 207.

When the multimedia transceiver 200 transmits / receives multimedia data and low-speed data using only the microwave signal with the wireless network controller 100, the fourth modulator 226, the low-speed data transmitter 227 for the control station, and the control station The low speed data receiving unit 244 and the fourth demodulation unit are provided, and the low speed data is processed using the microwave transceiver for the control station.

Figure 7 shows a block diagram of an embodiment of a multimedia transmission and reception apparatus using an optical fiber according to the present invention.

According to another embodiment of the present invention, a multimedia transmission and reception apparatus 200 using an optical path includes an optical connection part 228 and an optical connection part connected to an optical path to transmit and receive data to and from the wireless network control device 100 through an optical signal. An optical demodulator 229 for demodulating and outputting the optical signal input from the second signal 228, a first demultiplexer 230 for demultiplexing and outputting the output of the optical demodulator 229, and the first demultiplexer ( A control signal analyzer 231 for receiving control data from the controller 230 and analyzing the control data and outputting the control data, a system controller 232 for controlling the system according to the analyzed control signal of the control signal analyzer 231, and a subscriber terminal device ( A microwave receiving unit 238 for receiving and outputting a microwave signal from the 400, a down converter unit 239 for converting the output of the microwave receiving unit 238 to a low frequency and outputting the output of the down converter unit 239 Demodulating and outputting the outputs of the first demodulation unit 240 for demodulating and outputting the low speed data receiving unit 243 and the low speed data receiving unit 243 for receiving and outputting low speed data from the low speed data relay 300. Under the control of the second demodulator 244 and the system controller 232, the data inputted from the first demultiplexer 230 and the first and second demodulators 240 and 244 are processed and output. From the data stream control unit 233 and the data stream control unit 233 to receive the data output to the wireless network control device 100 from the data stream control unit 233, and optically modulated and output the data A first modulator 235 for receiving and modulating and outputting multimedia data output to the subscriber terminal device 400, an up-converter 236 for converting and outputting the output of the first modulator 235 to a high frequency; The up-converter 236 A microwave transmitting unit 237 for receiving the output and outputting to the subscriber terminal device 400, a second to receive the modulated and output the low-speed data output from the data stream control unit 233 to the speed data relay 300 A modulator 241 and a low speed data transmitter 242 for outputting the output of the second modulator 241 to the low speed data relay 300.

Referring to the operation of the multimedia transmission and reception apparatus 200 configured as described above, the multimedia transmission and reception apparatus 200 connected to the wireless network control apparatus 100 using an optical fiber is an optical connection unit 228 with the wireless network control apparatus 12. Connected, and the data received from the subscriber station device 400 or the low speed data relay 300 is received by the low speed data receiver 243 or received by the microwave receiver 238 and input to the data stream controller 233. This is again output to the optical modulator 234 and transmitted through the optical connector 228.

The data received through the optical connector 228 is demodulated through the optical demodulator 229, and then output to the first demultiplexer 230, and the first demultiplexer 230 from the optical demodulator 229. By demultiplexing the received signal, the control signal is output to the control signal analyzer 231, and the data string is output to the data stream controller 233.

The control signal analyzer 231 analyzes the control signal input from the first demultiplexer 230, outputs a control signal to the system controller 232, and the system controller 232 is the control signal analyzer 231. The control signal is output to the data stream control unit 233 according to the control signal input to the control panel.

The data stream controller 233 outputs the data received from the first demultiplexer 230 through the microwave transmitter 237 to the first modulator 235 under the control of the system controller 232. After being modulated and output to the up-converter 236, the up-converter 236 converts the frequency and transmits the frequency through the microwave transmitter 237.

In addition, the data stream controller 233 transmits the data to be transmitted through the low speed data transmitter 242 to the second modulator 241, modulates the data, and then transmits the data through the low speed data transmitter 242.

The low speed data is received by the low speed data receiver 243 and demodulated by the second demodulator 244, and then output to the data stream controller 233 for processing. The high speed data is received by the microwave receiver 238 and down. After frequency conversion through the converter unit 239, the first demodulator 240 is demodulated and output to the data stream controller 233 for processing.

8 is a block diagram of an embodiment of a subscriber station apparatus for single subscriber reception according to the present invention.

Subscriber terminal 400 for accommodating a single subscriber, the microwave receiving unit 401 for receiving and outputting a microwave signal from the multimedia transceiver 200, receives the output of the microwave receiving unit 401 at a low frequency A first demodulation unit 403 for demodulating and outputting the output of the down converter unit 402 of the down converter unit 402 for converting and outputting the second demodulation unit for outputting the demultiplexed output of the first demodulation unit 403; 1 demodulator 403, the first demultiplexer 404 for demultiplexing the output of the first demodulator 403 and outputs the control data from the first demultiplexer 404 and analyzed A second demodulation which demodulates and outputs the output of the control signal analyzer 405 to output the low speed data receiver 413 to receive and output the low speed data from the low speed data relay 300; Grandfather (414) ), A second demultiplexer 415 for demultiplexing and outputting the output of the second demodulator 414 and a low speed data control for receiving and analyzing control data from the second demultiplexer 415 and outputting the control data; A system controller 406 for receiving an output of the signal analyzer 416 and the control signal analyzer 405 and an output of the low speed data control signal analyzer 416 and controlling the system according to the control signal; Under the control of the control unit 406, the data stream control unit 407 processes and outputs data input from the first and second demultiplexers 404 and 415, and multiplexes and outputs the data generated from the subscriber. ), A multimedia output unit 408 that receives the output of the data stream controller 407 and outputs it to a subscriber, and a multimedia input unit that receives data from the subscriber and outputs it to the data stream controller 407. 409, a first modulator 410 for receiving, modulating, and outputting data output from the data stream controller 407 to the multimedia transceiver 200, and outputting the first modulator 410 at high frequency; The up-converter 411 for converting the output signal to the multimedia converter 200 for receiving the output of the up-turn-verter 411 and outputting the output signal to the multimedia transceiver 200, and the data stream controller 407. The second modulator 417 receives and modulates and outputs the data output to the low speed data relay 300, and outputs the output of the second modulator 417 to the low speed data relay 300. And a low speed data transmitter 418.

Referring to the operation of the subscriber station 400 for the single subscriber configured as described above, the subscriber station 400 receives the high-speed and low-speed data for the multimedia service from the wireless network control device 100, and the VOD and It has a transmission and reception function for transmitting and receiving control signals of the same interactive service and transmitting and receiving data at high speed and low speed with other subscribers.

The microwave receiver 401 receives a radio wave of several GHz to several tens of GHz transmitted from the multimedia transceiver 200 to the down converter 402, and the down converter 402 is the microcomputer. The signal received from the wave receiver 401 is frequency-converted and output to the first demodulator 403.

The first demodulator 403 demodulates the signal input from the down converter 402 and outputs the demodulated signal to the first demultiplexer 404, and the first demultiplexer 404 outputs the first demodulator 403. Demultiplexing the signal input from each channel by) to output the data stream to the data stream control device 99, the control signal is output to the control signal analyzer 405.

The control signal analyzer 405 analyzes the control signal input from the first demultiplexer 404 and outputs the analyzed information to the system controller 406.

The system controller 406 controls the data stream controller 407 according to the control information input from the control signal analyzer 405.

The data stream controller 407 is configured to simultaneously select a plurality of channels and performs a function of transforming and multiplexing various data to a predetermined purpose. The first demultiplexer is controlled by a system controller 406. The multimedia data input at 404 is output to the multimedia output unit 408.

Data input from the multimedia input unit 409 is analyzed by the data stream controller 407 and output to the first modulator 410, and the first modulator 410 receives the signal input from the data stream controller 407. It modulates and outputs it to the up-converter 411.

The up-converter 411 performs frequency modulation on the signal input from the first modulator 410 and transmits the signal through the microwave transmitter 412.

In addition, the data input to the multimedia input unit 409 is analyzed by the data stream control unit 407 and output to the second modulator 417, the second modulator 417 is input from the data stream control unit 407 The signal is modulated and transmitted through the low speed data transmitter 418.

The low speed data is received by the low speed data receiver 413 and output to the second demodulator 414. The second demodulator 414 demodulates the signal input from the low speed data receiver 413 to decode the second demultiplexer. Output to 415.

The second demultiplexer 415 demultiplexes the signal input from the second demodulator 414 and outputs the data stream to the data stream controller 407, and the control signal is a low-speed data control signal analyzer 416. Output to.

The low speed data control signal analyzer 416 analyzes the control signal input from the second demultiplexer 415 and outputs the control information to the system controller 406.

The data stream controller 407 outputs the data input from the second demultiplexer 415 to the multimedia output unit 408 under the control of the system controller 406.

The low speed data control signal analysis unit 416, the multimedia input unit 409, and the multimedia output unit 408 interoperate with each other so that subscribers can simultaneously use various services such as telephone, fax, and video on demand (VOD). do.

9 is a block diagram of an embodiment of a subscriber station apparatus for accommodating multiple subscribers according to the present invention.

The multi-transmitter transceiver 421 transmits / receives microwave signal data or low-speed data with the multimedia transceiver 200 and the low-speed data relay 300, and transmits the received data to the plurality of subscriber combiner 422. Perform the function of distributing.

The multiple subscriber coupling unit 422 is connected to the multiple subscriber's transceiver and distribution unit 421 to transmit data to the subscriber, or output data generated from the subscriber to the multiple subscriber's transceiver and distribution unit 421. It performs the function.

10 is a block diagram of a transmission / reception and distribution unit for multiple subscribers according to the present invention.

The multiple subscriber transceiver 421 includes a microwave receiver 423 for receiving and outputting a microwave signal, a down converter 424 for converting an output of the microwave receiver 423 to a low frequency, and outputting the low frequency. A low speed data receiver 425 for receiving and outputting data, a demodulator 426 for demodulating and outputting the output of the low speed data receiver 425, an output of the downconverter 424 and an output of the demodulator 426 A mixer 427 for receiving and mixing the same, an amplifier 428 for amplifying and outputting the output of the mixer 427, a divider 429 for distributing and outputting the output of the amplifier 428, and combining the plurality of subscribers Data stream controller 430 for multiplexing the data input from the unit 422 and outputting the low-speed data and the multimedia data, and the multi-input from the data stream controller 430 The first modulator 431 for modulating and outputting the media data, the up-converter 432 for converting the output of the first modulator 431 into a high frequency and outputting the output, the multimedia converter transmits and receives the output of the up-converter 432 The microwave transmitter 433 outputs to the apparatus 200, the second modulator 434 for receiving and modulating the low-speed data from the data stream controller 430, and outputs the output of the second modulator 434 It is provided with a low-speed data transmitter 435 for receiving and outputting to the low-speed data relay 300.

Referring to the operation of the multiple subscribers transceiver and distribution unit 421 configured as described above, the multiple subscribers transceiver and distribution unit 421 amplifies the received signal to distribute to multiple subscribers, multiplexing the data generated from multiple subscribers To transmit to the multimedia transceiver 200 or the low speed data relay 300.

The large amount of multimedia data received by the microwave receiver 423 is frequency-converted through the down-converter 424 and then received by the low-speed data receiver 425 and demodulated by the demodulator 426 and a mixer. It is mixed through 427 and amplified by amplifier 428 and then distributed to a plurality of subscribers in distributor 429.

The large data and the low speed data generated at the subscriber are separated from the data stream controller 430 so that the low speed data and a part of the low speed data are modulated by the first modulator 431 and frequency-converted by the up-converter 432. Then, it is transmitted through the microwave transmitter 433.

The low speed data is modulated by the second modulator 434 under the control of the data stream controller 430 and transmitted via the low speed data transmitter 435.

11 is a block diagram of an embodiment of a multiple subscriber coupling unit according to the present invention.

The subscriber combiner 422 demodulates the output of the channel separation filter 436 and the channel separation filter 436 for separating and filtering data inputted from the plurality of subscriber transmission / reception and distribution units 421 for each channel. A demodulator 437 for outputting, a demultiplexer 438 for demultiplexing and outputting the output of the demodulator 437, a control signal analyzer 439 for receiving and analyzing control data from the demultiplexer 438 and outputting the control data; The system controller 440 receives the control data analyzed from the control signal analyzer 439 and controls the system according to the control data, and the data input from the demultiplexer 438 under the control of the system controller 440. A data stream controller 441 and the data stream controller 441 for processing the data inputted from the subscriber and outputting the received data to the multiple subscriber-receiver transmitting / receiving unit 421. A multimedia output unit 443 for receiving the output of the output to the subscriber, and a multimedia input unit 442 for receiving the data generated from the subscriber and outputs to the data stream controller 441.

Referring to the operation of the subscriber combiner 422 configured as described above, the data outputted from the multiple subscriber transceiver 421 is received and filtered by the channel separation filter 436 and then output to the demodulator 437. do.

The demodulator 437 demodulates the data received by the channel separation filter 436 and outputs it to the demultiplexer 438. The demultiplexer 438 demultiplexes the data input from the demodulator 437 to control the low speed. The data is output to the control signal analyzer 439 and the data string is output to the data stream controller 441.

The control signal analyzer 439 analyzes the control data input from the demultiplexer 438 and outputs the analyzed result to the system controller 440.

The system controller 440 controls the data stream controller 441 according to the control signal input from the control signal analyzer 439.

The data stream controller 441 outputs data input from the demultiplexer 438 to the multimedia output unit 443 under the control of the system controller 440.

The signal input from the multimedia inputter 442 is analyzed by the data stream controller 441 and output to the plurality of subscriber transceivers 421.

12 is a block diagram of an embodiment of a low-speed data relay according to the present invention.

The low speed data receiver 301 receives the low speed data and outputs the low speed data to the switching unit 302, and the switching unit 302 switches the low speed data received by the low speed data receiver 301 to output the data to the data processor 303. .

The data processor 303 processes the data input from the switching unit 302 and then transmits the data through the low speed data transmitter 304.

FIG. 13 is a schematic diagram of an entire wireless network using microwaves according to the present invention, in which 501 to 506 represent a macro cell, 511 to 518 are multimedia transceivers, 521 and 522 are wireless network control devices, and 531 are low speed data. Each relay device is shown.

The multimedia transmitting and receiving devices 511 to 514 of the macro cell 501 may receive various multimedia services from the wireless network control device 521 having a video server.

Microcells having the multimedia transceiver 511 and 512 may have an area where radio waves overlap each other. Receive frequency diversity, polarization diversity, and space diversity are used to reduce interference due to duplex listening and crosstalk of subscribers in such areas.

The multimedia transceiver 515 to 518 that is far from the radio network controller 521 may be connected to the radio network controller 521 by wireless or optical fiber.

The wireless network control device 522 that is far from the wireless network control device 521 may be connected to each other through optical fibers to share their data and resources.

The multimedia transceiver 511 to 514 may also share data of the wireless network control device 522 through the wireless network control device 521.

Each of the multimedia transceivers 511 to 518 may share resources of the wireless network controllers 521 and 522, and may be infinitely extended to such a structure.

In addition, the low speed data relay device 531 may be at the same location as the wireless network control devices 521 and 522 or may be separated from each other, and may be connected to the wireless network control device by wire or wirelessly.

The present invention constructed and operated as described above is excellent in scalability because the multimedia transceiver device is located at the center of a cell in order to provide a multimedia service over a large area. Since it can be shared, it has the advantage of using the media server with excellent efficiency.Because the frequency utilization efficiency is high because the combination of the transmission method for high speed data transmission and the function for low speed data transmission, the low speed and high speed between subscribers Various multimedia services such as data service and data transmission by user's request can be provided more conveniently and cheaply, and it is convenient to expand when new requirements come out in the future.

Claims (32)

Subscriber terminal means (400) for transmitting the data generated from the subscriber by using the microwave and the low frequency, and receiving the microwave signal and the low speed data and outputting multimedia data to the subscriber; Low-speed data relay means (300) for outputting low-speed data generated from the subscriber terminal means (400) to another subscriber or for receiving low-speed data generated from another subscriber and outputting the low-speed data generated from the other subscriber to the subscriber terminal means (400); Located in the center of the micro-cell and outputs the multimedia data received using the microwave to the subscriber station means 400, the received low-speed data to the low-speed data relay means 300, the subscriber terminal means 400 At least one multimedia transmission and reception means (200) for receiving the microwave signal and the low-speed data from the multiplexed and multiplexed and outputting the low-speed data from the low-speed data relay means (300); And a media server for controlling the entire wireless network and providing a multimedia service, and outputs multimedia data to the at least one multimedia transmission / reception means 200 using microwaves according to a subscriber's request. Outputs to the low speed data relay means 300 or the at least one multimedia transmission and reception means 200 using a frequency, receives a microwave signal from the at least one multimedia transmission and reception means 200, and relays the low speed data. And at least one radio network control means (100) for receiving low-speed data from the means (300). According to claim 1, wherein the wireless network control means 100, Microwave receiving means for receiving and outputting a microwave signal (101); Down-converting means (102) for converting the signal input from the microwave receiving means (101) into a low frequency and outputting it; First demodulating means (103) for demodulating and outputting the output of the down converting means (102); First demultiplexing means (104) for demultiplexing and outputting the output of said first demodulation means (103); Control signal analysis means (105) for receiving control data from the first demultiplexing means (104) and analyzing and outputting the control data; Low speed data receiving means for receiving and outputting low speed data; Second demodulation means (115) for demodulating and outputting the output of the low speed data receiving means (114); Second demultiplexing means (116) for demultiplexing and outputting the output of the second demodulation means (115); Low-speed data control signal analysis means (117) for receiving control data from the second demultiplexing means (116) and analyzing and outputting the control data; System control means (106) for receiving a control signal analyzed from the control signal analysis means (105) and the low speed data control signal analysis means (117) and outputting a control signal; Media server means (107) for storing and outputting multimedia data according to the control of the system control means (106); A data stream control means for controlling and outputting data input from the first and second demultiplexing means 104 and 116 and data input from the media server means 107 according to the control of the system control means 106 ( 108); First modulation means (109) for modulating and outputting multimedia data input from said data stream control means (108); Upconverting means (110) for converting the output of the first modulating means (109) into a high frequency and outputting it; Microwave transmitting means (111) for transmitting the output of said upconverting means (110); Second modulation means (112) for modulating and outputting low-speed data input from said data stream control means (108); And low-speed data transmission means (113) for transmitting the output of the second modulation means (112). 3. The apparatus of claim 2, further comprising another communication network connection means 118, which is controlled by the system control means 106 and connected to the data stream control means 108 to connect with another communication network to transmit and receive data. Two-way multimedia transmission and reception system using a wireless network characterized in that. The two-way multimedia transmission and reception system using a wireless network according to claim 2, wherein the microwave transmission means uses a highly directional antenna for point-to-point transmission. The method of claim 2, wherein the data stream control means 108 is provided with a switch inside the multiplexing and outputting the telephone or fax generated from the subscriber, video on demand (VOD) control data, subscriber information, etc. Two-way multimedia transmission and reception system using a wireless network. According to claim 1, The multimedia transmitting and receiving means 200, Microwave receiving means for the control station for receiving and outputting a microwave signal from the wireless network control means (100); First down-converting means (202) for converting the output of the microwave receiving means (201) for the control station into a low frequency and outputting it; First demodulation means (203) for demodulating and outputting the output of the first downconverting means (202); First demultiplexing means (204) for demultiplexing and outputting the output of the first demodulation means (203); Control signal analyzing means (205) for analyzing and outputting control data input from said first demultiplexing means (204); System control means (206) for performing system control in accordance with the analyzed control signal of the control signal analysis means (205); Subscriber low speed data receiving means (218) for receiving and outputting low speed data generated from the subscriber; Third demodulating means (219) for demodulating and outputting the output of the subscriber low speed data receiving means (218); Third demultiplexing means (220) for demultiplexing and outputting the output of the third demodulating means (219); Low speed data receiving means (224) for a control station for receiving and outputting low speed data from the radio network control means (100); Fourth demodulating means (225) for demodulating and outputting the output of the low speed data receiving means (224) for the control station; A low speed data control signal analysis means (221) for receiving the output of the third demultiplexing means (220) and the output of the fourth demodulation means (225) to analyze the control signal and output the analyzed control signal and the low speed data; Subscriber microwave reception means 214 for receiving and outputting a microwave signal generated from the subscriber; Second downconverting means (215) for converting the output of the subscriber microwave receiving means (214) into a low frequency and outputting the converted frequency; Second demodulation means (216) for demodulating and outputting the output of the second downconverting means (215); Second demultiplexing means (217) for demultiplexing and outputting the output of the second demodulation means (216); Under the control of the system control means 206, data received from the first demultiplexing means 204, the second demultiplexing means 217, and the low speed data control signal analysis means 221 is input. Data stream control means 207 for processing and outputting the data; First modulation means (208) for receiving, modulating and outputting data transmitted from the data stream control means (207) to the radio network control means (100); First upconverting means (209) for converting the output of said first modulating means (208) into high frequency and outputting it; Microwave transmission means (210) for a control station for outputting the microwave signal of the first upconverting means (209) to the radio network control means (100); Second modulation means (211) for receiving the data output from the data stream control means (207) to the subscriber, modulating and outputting the data; Second upconverting means (212) for converting an output of the second modulating means (211) into a high frequency and outputting the same; Subscriber microwave transmission means (213) for receiving and outputting a microwave signal from the second upconverting means (212); Third modulation means (222) for receiving, modulating and outputting low-speed data output from the data stream control means (207) to the subscriber; Subscriber low speed data transmission means (223) for receiving and outputting the output of the third modulation means (222); Fourth modulation means (226) for receiving, modulating and outputting low-speed data output from the data stream control means (207) to the wireless network control means (100); And low-speed data transmission means (227) for a control station for receiving the output of the fourth modulation means (226) and outputting the output to the radio network control means (100). 2. The apparatus of claim 1, wherein the low speed data relay device comprises: low speed data receiving means (301) for receiving and outputting low speed data; Switching means (302) for switching and outputting low-speed data received by said low-speed data receiving means (301); Data processing means (303) for processing the data input from the switching means (302) and then outputting the data; And low-speed data transmitting means (304) for receiving low-speed data by receiving the output of the data processing means (303). According to claim 1, wherein the subscriber terminal means 400 for accommodating a single subscriber, Microwave receiving means (401) for receiving and outputting a microwave signal from the multimedia transmission and reception means (200); Down-converting means (402) for receiving the output of the microwave receiving means (401) and converting the low frequency to output the low frequency; First demodulating means (403) for demodulating and outputting the output of the downconverting means (402); First demultiplexing means (404) for demultiplexing and outputting the output of the first demodulation means (403); Control signal analyzing means (405) for receiving control data from the first demultiplexing means (404) and analyzing and outputting the control data; Low speed data receiving means (413) for receiving and outputting low speed data from the low speed data relay means (300); Second demodulation means (414) for demodulating and outputting the output of the low speed data receiving means (413); Second demultiplexing means (415) for demultiplexing and outputting the output of the second demodulation means (414); Low-speed data control signal analysis means (416) for receiving control data from the second demultiplexing means (415) and analyzing and outputting the control data; System control means (406) for receiving the output of the control signal analysis means (405) and the output of the low speed data control signal analysis means (416) and controlling the system according to the control signal; Under the control of the system control means 406, a data stream which processes and outputs data input from the first and second demultiplexing means 404 and 415, and multiplexes and outputs the data generated from the subscriber. Control means 407; A multimedia output means (408) for receiving an output of the data stream control means (407) and outputting it to a subscriber; Multimedia input means (409) for receiving data from a subscriber and outputting the data to the data stream control means (407); First modulation means (410) for receiving the data output from the data stream control means (407) to the multimedia transmission and reception means (200), modulating and outputting the data; Up-converting means (411) for converting the output of the first modulating means (410) into high frequency and outputting it; A microwave transmission means (412) for receiving the output of the up-converting means (411) and outputting it to the multimedia transmission / reception means (200); Second modulation means (417) for receiving, modulating and outputting data output from the data stream control means (407) to the low speed data relay means (300); And a low speed data transmission means (418) for receiving the output of the second modulation means (417) and outputting the output to the low speed data relay means (300). According to claim 1, The subscriber terminal means 400 for accommodating a plurality of subscribers, and distributes the data received from the multimedia transmission and reception means 200 and the low-speed data relay means 300, and outputs a plurality of input data Multiple subscribers transmission and reception and distribution means (421) for multiplexing and outputting the multimedia transmission and reception means (200) and the low speed data relay means (300); And a plurality of subscriber combining means 422 for outputting data inputted from the multiple subscriber's transmission and reception means 421 to the subscriber and outputting data generated from the subscriber to the multiple subscriber's transmission and reception means 421. Two-way multimedia transmission and reception system using a wireless network, characterized in that provided. 10. The apparatus of claim 9, wherein the plurality of subscribers transmitting and receiving means (421) comprises: microwave receiving means (423) for receiving and outputting microwave signals; Downconverting means (424) for converting the output of the microwave receiving means (423) to a low frequency and outputting the converted frequency; Low speed data receiving means (425) for receiving and outputting low speed data; Demodulation means (426) for demodulating and outputting the output of said low speed data receiving means (425); Mixing means (427) for receiving the output of the down-converting means (424) and the output of the demodulation means (426) to mix and output it; Amplifying means (428) for amplifying and outputting the output of the mixing means (427); Distribution means (429) for distributing and outputting the output of the amplification means (428); Data stream control means (430) for multiplexing the data inputted from the plurality of subscriber combining means (422) to separate and output low-speed data and multimedia data; First modulation means (431) for modulating and outputting multimedia data inputted from the data stream control means (430); Upconverting means (432) for converting and outputting the output of the first modulating means (431) into a high frequency; A microwave transmission means 433 for receiving the output of the upconverting means 432 and outputting the output to the multimedia transmitting and receiving means 200; Second modulation means (434) for receiving low-speed data from the data stream control means (430) and modulating and outputting the low-speed data; And low speed data transmission means (435) for receiving the output of the second modulation means (434) and outputting the output to the low speed data relay means (300). 10. The method of claim 9, wherein the subscriber combining means (422) comprises: channel separation filtering means (436) for separating and filtering data inputted from the plurality of subscriber transmission / reception and distribution means (421) for each channel; Demodulation means (437) for demodulating and outputting the output of said channel separation filtering means (436); Demultiplexing means (438) for demultiplexing and outputting the output of the demodulation means (437); Control signal analyzing means (439) for receiving control data from the demultiplexing means (438) and analyzing and outputting the control data; System control means (440) for receiving the control data analyzed from the control signal analysis means (439) and controlling the system according to the control data; A data stream under control of the system control means 440 to output data input from the demultiplexing means 438, and to process the data input from the subscriber and to output to the multiple subscriber / receiver and distribution means 421. Control means 441; A multimedia output means 443 which receives an output of the data stream control means 441 and outputs it to a subscriber; And a multimedia input means (442) for receiving data generated from a subscriber and outputting the data generated from a subscriber to the data stream control means (441). Subscriber terminal means (400) for transmitting data generated from the subscriber using microwaves and low speed frequencies, and receiving microwave signals and low speed data and outputting multimedia data to the subscribers; Low-speed data relay means (300) for outputting low-speed data generated from the subscriber terminal means (400) to another subscriber or for receiving low-speed data generated from another subscriber and outputting the low-speed data generated from the other subscriber to the subscriber terminal means (400); Located at the center of the micro cell to separate the received data using the optical signal to output the multimedia data to the subscriber terminal means 400, the low-speed data to the low speed data relay means 300, the subscriber terminal means At least one multimedia transmission / reception means (200) for receiving a microwave signal and low-speed data from the 400 and multiplexing it and outputting it as an optical signal or receiving low-speed data from the low-speed data relay means (300); And a media server for controlling the entire wireless network, providing a multimedia service, and multiplexing multimedia data and low-speed data using optical signals according to a subscriber's request, and outputting the multiplexed data to the at least one multimedia transmission / reception means 200. At least one or more wireless network control means (100) for receiving data from the at least one multimedia transmitting and receiving means (200) using an optical signal, and transmitting and receiving the low speed data with the low speed data relay means (300) using a low frequency. Interactive multimedia transmission and reception system using a wireless network, characterized in that it comprises a). 13. The apparatus of claim 12, wherein the wireless network control means (100) comprises: optical fiber connection means (119) connected to an optical path for transmitting and receiving data with an optical signal; Optical demodulation means (120) for demodulating and outputting a signal input from the optical fiber connection means (119); First demultiplexing means (121) for demultiplexing and outputting the output of the optical demodulation means (120); Control signal analysis means (122) for receiving control data from the first demultiplexing means (121) and analyzing and outputting the control data; Low speed data receiving means (129) for receiving and outputting low speed data from the low speed data relay means (300); Demodulation means (130) for demodulating and outputting the output of the low speed data receiving means (129); Second demultiplexing means (131) for demultiplexing and outputting the output of the demodulation means (130); Low speed data control signal analysis means (132) for receiving control data from the second demultiplexing means (131) and analyzing and outputting the control data; System control means (123) for controlling the system according to the analyzed control signal of the control signal analysis means (122) and the low speed data control signal analysis means (132); Media server means (124) for storing and outputting the multimedia data under the control of the system control means (123); Data stream control means for receiving the output of the first and second demultiplexing means 121 and 131 and the output of the media server means 124 to process and output data under the control of the system control means 123. 125; Optical modulation means (126) for receiving the multimedia data from the data stream control means (125) and optically modulating and outputting the data; Modulation means (127) for receiving, modulating and outputting low-speed data output from the data stream control means (125) to the low-speed data relay means (300); And low speed data transmission means (127) for receiving an output of the modulation means (127) and outputting the output to the low speed data relay means (300). 14. The apparatus of claim 13, further comprising another communication network connection means 133, which is controlled by the system control means 123 and connected to the data stream control means 125 to connect with another communication network to transmit and receive data. Two-way multimedia transmission and reception system using a wireless network characterized in that. The method of claim 13, wherein the data stream control means 125 is provided with a switch inside thereof to multiplex and output a telephone or fax generated from a subscriber, VOD control data, subscriber information, and the like. Two-way multimedia transmission and reception system using a wireless network. 13. The apparatus of claim 12, wherein the multimedia transmission and reception means (200) comprises: optical connection means (228) connected to an optical path for transmitting and receiving data to and from the wireless network control means (100) through an optical signal; Optical demodulation means (229) for demodulating and outputting the optical signal inputted from the optical connection means (228); First demultiplexing means (230) for demultiplexing and outputting the output of the optical demodulation means (229); Control signal analyzing means (231) for receiving control data from the first demultiplexing means (230) and analyzing and outputting the control data; System control means (232) for controlling the system according to the analyzed control signal of the control signal analysis means (231); Microwave receiving means 238 for receiving and outputting a microwave signal from the subscriber terminal means 400; Down-converting means (239) for converting the output of the microwave receiving means (238) into a low frequency and outputting it; First demodulating means (240) for demodulating and outputting the output of the downconverting means (239); Low speed data receiving means (243) for receiving and outputting low speed data from the low speed data relay means (300); Second demodulation means (244) for demodulating and outputting the output of said low speed data receiving means (243); Data stream control means 233 for processing and outputting data inputted from the first demultiplexing means 230 and the first and second demodulation means 240 and 244 under the control of the system control means 232. ; Optical modulation means (234) for receiving data output from the data stream control means (233) to the wireless network control means (100) and optically modulating and outputting the data; First modulation means (235) for receiving, modulating and outputting multimedia data outputted from the data stream control means (233) to the subscriber station means (400); Up-converting means (236) for converting the output of the first modulating means (235) into high frequency and outputting it; Microwave transmission means (237) for receiving the output of the upconverting means (236) and outputting it to the subscriber station means (400); Second modulation means (241) for receiving, modulating and outputting low-speed data output from the data stream control means (233) to the low-speed data relay means (300); And low-speed data transmission means (242) for outputting the output of the second modulation means (241) to the low-speed data relay means (300). 13. The apparatus of claim 12, wherein the low speed data relay device comprises: low speed data receiving means (301) for receiving and outputting low speed data; Switching means (302) for switching and outputting low-speed data received by said low-speed data receiving means (301); Data processing means (303) for processing the data input from the switching means (302) and then outputting the data; And low-speed data transmitting means (304) for receiving low-speed data by receiving the output of the data processing means (303). 13. The apparatus of claim 12, wherein the subscriber station means (400) for accommodating a single subscriber comprises: microwave reception means (401) for receiving and outputting microwave signals from the multimedia transmission and reception means (200); Down-converting means (402) for receiving the output of the microwave receiving means (401) and converting the low frequency to output the low frequency; First demodulating means (403) for demodulating and outputting the output of the downconverting means (402); First demultiplexing means (404) for demultiplexing and outputting the output of the first demodulation means (403); Control signal analyzing means (405) for receiving control data from the first demultiplexing means (404) and analyzing and outputting the control data; Low speed data receiving means (413) for receiving and outputting low speed data from the low speed data relay means (300); Second demodulation means (414) for demodulating and outputting the output of the low speed data receiving means (413); Second demultiplexing means (415) for demultiplexing and outputting the output of the second demodulation means (414); Low-speed data control signal analysis means (416) for receiving control data from the second demultiplexing means (415) and analyzing and outputting the control data; System control means (406) for receiving the output of the control signal analysis means (405) and the output of the low speed data control signal analysis means (416) and controlling the system according to the control signal; Under the control of the system control means 406, a data stream which processes and outputs data input from the first and second demultiplexing means 404 and 415, and multiplexes and outputs the data generated from the subscriber. Control means 407; A multimedia output means (408) for receiving an output of the data stream control means (407) and outputting it to a subscriber; Multimedia input means (409) for receiving data from a subscriber and outputting the data to the data stream control means (407); First modulation means (410) for receiving the data output from the data stream control means (407) to the multimedia transmission and reception means (200), modulating and outputting the data; Up-converting means (411) for converting the output of the first modulating means (410) into high frequency and outputting it; A microwave transmission means (412) for receiving the output of the up-converting means (411) and outputting it to the multimedia transmission / reception means (200); Second modulation means (417) for receiving, modulating and outputting data output from the data stream control means (407) to the low speed data relay means (300); And a low speed data transmission means (418) for receiving the output of the second modulation means (417) and outputting the output to the low speed data relay means (300). The method of claim 12, wherein the subscriber station means 400 for accommodating a plurality of subscribers, and distributes and outputs the data received from the multimedia transmission and reception means 200 and the low-speed data relay means 300, a plurality of input data Multiple subscribers transmission and reception and distribution means (421) for multiplexing and outputting the multimedia transmission and reception means (200) and the low speed data relay means (300); And a plurality of subscriber combining means 422 for outputting data input from the multiple subscriber's transmission and reception means 421 to the subscriber and outputting data generated from the subscriber to the multiple subscriber's transmission and reception means 421. Two-way multimedia transmission and reception system using a wireless network characterized in that it comprises a. 20. The apparatus of claim 19, wherein the plurality of subscribers transmitting and receiving means (421) comprises: microwave receiving means (423) for receiving and outputting microwave signals; Downconverting means (424) for converting the output of the microwave receiving means (423) to a low frequency and outputting the converted frequency; Low speed data receiving means (425) for receiving and outputting low speed data; Demodulation means (426) for demodulating and outputting the output of said low speed data receiving means (425); Mixing means (427) for receiving the output of the down-converting means (424) and the output of the demodulation means (426) to mix and output it; Amplifying means (428) for amplifying and outputting the output of the mixing means (427); Distribution means (429) for distributing and outputting the output of the amplification means (428); Data stream control means (430) for multiplexing the data inputted from the plurality of subscriber combining means (422) to separately output low-speed data and multimedia data; First modulation means (431) for modulating and outputting multimedia data inputted from the data stream control means (430); Upconverting means (432) for converting and outputting the output of the first modulating means (431) into a high frequency; A microwave transmission means 433 for receiving the output of the upconverting means 432 and outputting the output to the multimedia transmitting and receiving means 200; Second modulation means (434) for receiving low-speed data from the data stream control means (430) and modulating and outputting the low-speed data; And low speed data transmission means (435) for receiving the output of the second modulation means (434) and outputting the output to the low speed data relay means (300). 20. The apparatus of claim 19, wherein the subscriber combining means (422) comprises: channel separation filtering means (436) for separating and filtering data inputted from the plurality of subscriber transmission / reception and distribution means (421) for each channel; Demodulation means (437) for demodulating and outputting the output of said channel separation filtering means (436); Demultiplexing means (438) for demultiplexing and outputting the output of the demodulation means (437), and control signal analysis means (439) for receiving control data from the demultiplexing means (438) and analyzing and outputting the control data; System control means (440) for receiving the control data analyzed from the control signal analysis means (439) and controlling the system according to the control data; A data stream under control of the system control means 440 to output data input from the demultiplexing means 438, and to process the data input from the subscriber and to output to the multiple subscriber / receiver and distribution means 421. Control means 441; A multimedia output means 443 which receives an output of the data stream control means 441 and outputs it to a subscriber; And a multimedia input means (442) for receiving data generated from a subscriber and outputting the data generated from a subscriber to the data stream control means (441). Subscriber terminal means (400) for transmitting data generated from the subscriber using microwaves and low speed frequencies, and receiving microwave signals and low speed data and outputting multimedia data to the subscribers; Low-speed data relay means (300) for outputting low-speed data generated from the subscriber terminal means (400) to another subscriber or for receiving low-speed data generated from another subscriber and outputting the low-speed data generated from the other subscriber to the subscriber terminal means (400); Located at the center of the micro-cell separates the data received using the microwave to output the multimedia data and low-speed data to the subscriber terminal means 400, and outputs the low-speed data to the low-speed data relay means 300, At least one multimedia transmitting and receiving means (200) for receiving a microwave signal and low-speed data from the subscriber terminal means (400), multiplexing and outputting the low-speed data, and receiving the low-speed data from the low-speed data relay means (300); And a media server for controlling the entire wireless network, providing a multimedia service, and multiplexing the multimedia data and the low speed data using microwaves according to the subscriber's request, and outputting the multiplexed data to the at least one multimedia transmission / reception means 200. And at least one wireless network control means (100) for receiving multimedia data and low-speed data from the at least one multimedia transmission / reception means (200) by using a microwave signal. system. 23. The apparatus of claim 22, wherein the wireless network control means (100) comprises: microwave receiving means (101) for receiving and outputting microwave signals; Down-converting means (102) for converting the signal input from the microwave receiving means (101) into a low frequency and outputting it; First demodulation means (103) for demodulating and outputting the output of the downconverting means (102); First demultiplexing means (104) for demultiplexing and outputting the output of the demodulation means (103); Control signal analysis means (105) for receiving control data from the first demultiplexing means (104) and analyzing and outputting the control data; System control means (106) for receiving a control signal analyzed from the control signal analysis means (105) and outputting a control signal; Media server means (107) for storing and outputting multimedia data under control of the system control means (106); Data stream control means (108) for controlling and outputting data input from said first demultiplexing means (104) and data input from said media server means (107) under control of said system control means (106); First modulation means (109) for modulating and outputting multimedia data and low-speed data inputted from said data stream control means (108); Upconverting means (110) for converting the output of the first modulating means (109) into a high frequency and outputting it; And a microwave transmission means (111) for transmitting the output of the upconverting means (110). 24. The apparatus of claim 23, further comprising another communication network low speed means 118 that is controlled by the system control means 106 and connected to the data stream control means 108 to connect with another communication network to transmit and receive data. Two-way multimedia transmission and reception system using a wireless network characterized in that. 24. The system of claim 23, wherein the microwave transmitting means uses a highly directional antenna for point-to-point transmission. 24. The apparatus of claim 23, wherein the data stream control means 108 includes a switch inside thereof to multiplex and output a telephone or fax generated to the subscriber, VOD control data, subscriber information, and the like. Two-way multimedia transmission and reception system using a wireless network. 23. The apparatus of claim 22, wherein the multimedia transmitting and receiving means (200) comprises: microwave receiving means (201) for a control station for receiving and outputting a microwave signal from the wireless network control means (100); First down-converting means (202) for converting the output of the microwave receiving means (201) for the control station into a low frequency and outputting it; First demodulation means (203) for demodulating and outputting the output of the first downconverting means (202); First demultiplexing means (204) for demultiplexing and outputting the output of the first demodulation means (203); Control signal analyzing means (205) for analyzing and outputting control data input from said first demultiplexing means (204); System control means (206) for performing system control in accordance with the analyzed control signal of the control signal analysis means (205); Subscriber low speed data receiving means (218) for receiving and outputting low speed data generated from the subscriber; Third demodulating means (219) for demodulating and outputting the output of the subscriber low speed data receiving means (218); Third demultiplexing means (220) for demultiplexing and outputting the output of the third demodulating means (219); A low speed data control signal analyzing means 221 for receiving the output of the third demultiplexing means 220 and analyzing the control signal to output the analyzed control signal and the low speed data; Subscriber microwave reception means 214 for receiving and outputting a microwave signal generated from the subscriber; Second downconverting means (215) for converting the output of the subscriber microwave receiving means (214) into a low frequency and outputting the converted frequency; Second demodulation means (216) for demodulating and outputting the output of the second downconverting means (215); Second demultiplexing means (217) for demultiplexing and outputting the output of the second demodulation means (216); Under the control of the system control means 206, the data is received from the first demultiplexing means 204, the second demultiplexing means 217, and the low speed data control signal analysis means 221. Data stream control means 207 for processing and outputting; First modulation means (208) for receiving, modulating and outputting data transmitted from the data stream control means (207) to the wireless network control means (100); First upconverting means (209) for converting the output of said first modulating means (208) into high frequency and outputting it; Microwave transmission means (210) for the control station for outputting the microwave signal of the first upconverting means (209) to the radio network control means (100); Second modulation means (211) for receiving the data output from the data stream control means (207) to the subscriber, modulating and outputting the data; Second upconverting means (212) for converting an output of the second modulating means (211) into a high frequency and outputting the same; Subscriber microwave transmission means (213) for receiving and outputting a microwave signal from the second upconverting means (212); Third modulation means (222) for receiving, modulating and outputting low-speed data output from the data stream control means (207) to the subscriber; And subscriber low speed data transmission means (223) for receiving and outputting the output of the third modulation means (222). 23. The apparatus of claim 22, wherein the low speed data relay device comprises: low speed data receiving means for receiving and outputting low speed data; Switching means (302) for switching and outputting low-speed data received by said low-speed data receiving means (301); Data processing means (303) for processing the data input from the switching means (302) and then outputting the data; And low-speed data transmitting means (304) for receiving low-speed data by receiving the output of the data processing means (303). 23. The method of claim 22, wherein the subscriber terminal means (400) for accommodating a single subscriber comprises: microwave receiving means (401) for receiving and outputting a microwave signal from the multimedia transmitting and receiving means (200); Down-converting means (402) for receiving the output of the microwave receiving means (401) and converting the low frequency to output the low frequency; First demodulating means (403) for demodulating and outputting the output of the downconverting means (402); First demultiplexing means (404) for demultiplexing and outputting the output of the first demodulation means (403); Control signal analyzing means (405) for receiving control data from the first demultiplexing means (404) and analyzing and outputting the control data; Low speed data receiving means (413) for receiving and outputting low speed data from the low speed data relay means (300); Second demodulation means (414) for demodulating and outputting the output of the low speed data receiving means (413); Second demultiplexing means (415) for demultiplexing and outputting the output of the second demodulation means (414); Low-speed data control signal analysis means (416) for receiving control data from the second demultiplexing means (415) and analyzing and outputting the control data; System control means (406) for receiving the output of the control signal analysis means (405) and the output of the low speed data control signal analysis means (416) and controlling the system according to the control signal; Under the control of the system control means 406, a data stream which processes and outputs data input from the first and second demultiplexing means 404 and 415, and multiplexes and outputs the data generated from the subscriber. Control means 407; A multimedia output means (408) for receiving an output of the data stream control means (407) and outputting it to a subscriber; Multimedia input means (409) for receiving data from a subscriber and outputting the data to the data stream control means (407); First modulation means (410) for receiving the data output from the data stream control means (407) to the multimedia transmission and reception means (200), modulating and outputting the data; Up-converting means (411) for converting the output of the first modulating means (410) into high frequency and outputting it; A microwave transmission means (412) for receiving the output of the up-converting means (411) and outputting it to the multimedia transmission / reception means (200); Second modulation means (417) for receiving, modulating and outputting data output from the data stream control means (407) to the low speed data relay means (300); And a low speed data transmission means (418) for receiving the output of the second modulation means (417) and outputting the output to the low speed data relay means (300). 23. The method of claim 22, wherein the subscriber terminal means 400 for accommodating a plurality of subscribers, and distributes the data received from the multimedia transmission and reception means 200 and the low-speed data relay means 300, and outputs a plurality of input data Multiple subscribers transmission and reception and distribution means (421) for multiplexing and outputting the multimedia transmission and reception means (200) and the low speed data relay means (300); And a plurality of subscriber combining means 422 for outputting data input from the multiple subscriber's transmission and reception means 421 to the subscriber and outputting data generated from the subscriber to the multiple subscriber's transmission and reception means 421. Two-way multimedia transmission and reception system using a wireless network characterized in that it comprises a. 32. The apparatus of claim 30, wherein the plurality of subscribers transmit / receive and distribution means (421) comprises: microwave receiving means (423) for receiving and outputting microwave signals; Downconverting means (424) for converting the output of the microwave receiving means (423) to a low frequency and outputting the converted frequency; Low speed data receiving means (425) for receiving and outputting low speed data; Demodulation means (426) for demodulating and outputting the output of said low speed data receiving means (425); Mixing means (427) for receiving the output of the down-converting means (424) and the output of the demodulation means (426) to mix and output it; Amplifying means (428) for amplifying and outputting the output of the mixing means (427); Distribution means (429) for distributing and outputting the output of the amplification means (428); Data stream control means (430) for multiplexing the data inputted from the plurality of subscriber combining means (422) to separate and output low-speed data and multimedia data; First modulation means (431) for modulating and outputting multimedia data inputted from the data stream control means (430); Upconverting means (432) for converting and outputting the output of the first modulating means (431) into a high frequency; A microwave transmission means 433 for receiving the output of the upconverting means 432 and outputting the output to the multimedia transmitting and receiving means 200; Second modulation means (434) for receiving low-speed data from the data stream control means (430) and modulating and outputting the low-speed data; And low speed data transmission means (435) for receiving the output of the second modulation means (434) and outputting the output to the low speed data relay means (300). 31. The apparatus of claim 30, wherein the subscriber combining means (422) comprises: channel separation filtering means (436) for separating and filtering data inputted from the plurality of subscriber transmission / reception and distribution means (421) for each channel; Demodulation means (437) for demodulating and outputting the output of said channel separation filtering means (436); Demultiplexing means (438) for demultiplexing and outputting the output of the demodulation means (437); Control signal analyzing means (439) for receiving control data from the demultiplexing means (438) and analyzing and outputting the control data; System control means (440) for receiving the control data analyzed from the control signal analysis means (439) and controlling the system according to the control data; A data stream under control of the system control means 440 to output data input from the demultiplexing means 438, and to process the data input from the subscriber and to output to the multiple subscriber / receiver and distribution means 421. Control means 441; A multimedia output means 443 which receives an output of the data stream control means 441 and outputs it to a subscriber; And a multimedia input means (442) for receiving data generated from a subscriber and outputting the data generated from a subscriber to the data stream control means (441).