KR100473119B1 - A satellite asynchronous transfer mode interworking unit and method thereof - Google Patents

Abstract

The present invention relates to a satellite AMT interworking apparatus and a method for implementing the same for ATM link improvement and terrestrial network interworking.

To this end, in the present invention, in the satellite ATM interlocking device for transmitting the ATM signal to the satellite, the first A is connected to the first terrestrial ATM network to output the ATM cell data TEM component, a second ATM component connected to a second terrestrial ATM network to output ATM cell data, and a video of a transport stream according to the Moving Picture Experts Group (MPEG) -2 standard. An MPEG component that generates a signal as ATM cell data, an IPoA component that generates and outputs Ethernet frame data as ATM cell data, and a burst error in a satellite channel If so, the link improvement unit for adaptively correcting the error according to the state of the phase channel by distributing the generated burst error in the form of a random error (RANDOM ERROR), and multiplexing the generated ATM cell data It characterized in that this comprises a TM layer processor for outputting to a line portion. Through this, the satellite ATM link can be improved to provide a reliable quality service.

Description

SATELLITE ASYNCHRONOUS TRANSFER MODE INTERWORKING UNIT AND METHOD THEREOF

The present invention relates to a satellite AMT interworking device and a method for implementing the same, and more particularly, to a satellite AMT interworking device and a method for implementing the same so that data of a terrestrial network can be transmitted using a satellite.

Conventionally, devices that transmit Asynchronous Signals (ATM) signals to satellites may transmit only ATM signals of the terrestrial network using satellites. As a result, it has been difficult to provide high quality services such as video and Internet data services.

In addition, although the error correction technique is used to cope with the burst error characteristic of the satellite channel, it is difficult to improve the data transmission efficiency by coping with the channel condition that changes over time because of the same error correction capability when the channel characteristic is good or bad. there was.

As a technology related to signal transmission and error correction, the right holder has a patent of Song Jae-in [Patent Name: High Speed ATM Satellite Transmission Device, Registration No .: 10-1997-16094], which is the same high speed as the terrestrial AMT signal. The present invention aims to provide an ultra-high speed ATM satellite transmission device suitable for transmitting the ATM signal using Mugunghwa No. 3 satellite.

However, this related technique also connects only the terrestrial AT signal and uses the weaver code for error correction.

Other related technologies include the patent of [Patent Name: 155 Mega-speed satellite AT transmission / reception signal processing apparatus and method thereof, Registration No. 10-1999-35088], in which the right holder has a right line. The present invention is to define a 155Mbps transmission and reception format for burst transmission and reception and later TDMA access, and to provide a 155Mbps satellite transmission / reception signal processing apparatus and method for its implementation. .

However, such an apparatus and method also include a codec unit and a modem unit to transmit the ATM signal at high speed, which is not only complicated to implement, but also has a fixed error correction capability.

Therefore, there is a need for an apparatus and method having a simple structure and having an adaptive error correction capability.

The technical problem to be achieved by the present invention is to solve this problem, according to the interlocking satellite and terrestrial network AMT interworking device that can simultaneously transmit not only the AMT signal of the ground network, but also video and Internet-related signals to the satellite And to provide a method of implementation thereof.

In addition, by using an adaptive error correction technique, the present invention improves data transmission efficiency by reducing the parity byte amount when the satellite channel characteristic is good, and increases the parity byte amount when the satellite channel characteristic is bad, thereby improving the error correction capability. It is to provide a satellite AMT interworking device and an implementation method thereof that can improve the quality of the satellite link.

Satellite AMT interworking apparatus according to the present invention for achieving the above object, in the satellite AMT interworking device for transmitting the ATM signal to the satellite, ATM is connected to the first terrestrial ATM network (ATM) a first ATM component outputting cell data; A second ATM component connected to a second terrestrial ATM network to output ATM cell data; An MPEG component for generating a video signal of a transport stream according to the Moving Picture Experts Group (MPEG) -2 standard into ATM cell data; An IPoA component which generates and outputs Ethernet frame data as ATM cell data; A link improvement unit for distributing the generated burst error in the form of a random error (RANDOM ERROR) when the burst error occurs in the satellite channel and adaptively correcting the error according to the state of the phase channel; And an ATM layer processor for multiplexing the generated ATM cell data and outputting the multiplexed ATM cell data to the link improving unit.

In addition, according to another aspect of the present invention, there is provided a method for implementing a satellite AT interworking device, comprising: a) a first terrestrial ATM (ATM) A) connected to a network to output ATM cell data, or connected to a second terrestrial ATM network to output ATM cell data; b) generate video signals of transport streams according to the Moving Picture Experts Group (MPEG) -2 standard as ATM cell data or Ethernet frame data to ATM cell data; Outputting; c) if a burst error occurs in a satellite channel, distributing the generated burst error into a random error (RANDOM ERROR) to adaptively correct the error according to the state of the phase channel; And d) multiplexing the generated ATM cell data, and outputting the multiplexed ATM cell data to a link improving unit which performs step c).

In addition, in a recording medium including a method for implementing a satellite ATM linkage device for transmitting an ATM signal to a satellite according to another aspect of the present invention, a) is connected to the first terrestrial ATM network Outputting ATM cell data or being connected to a second terrestrial ATM network to output ATM cell data; b) generate video signals of transport streams according to the Moving Picture Experts Group (MPEG) -2 standard as ATM cell data or Ethernet frame data to ATM cell data; Outputting function; c) if a burst error occurs in a satellite channel, distributing the generated burst error in the form of a random error (RANDOM ERROR) to adaptively correct the error according to the state of the phase channel; And d) multiplexing the generated ATM cell data, and outputting the program to a link improving unit performing the step c).

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

1 is a schematic configuration diagram of a satellite communication system including a satellite AT linkage device according to an embodiment of the present invention.

As shown in FIG. 1, the satellite AMT interworking devices 100a and 100b are connected to the satellite modem 200 as a satellite communication system model using the satellite AMT interworking devices 100a and 100b according to the embodiment of the present invention. do.

The satellite AMT interlocks 100a and 100b constituting such a structure will be described in detail with reference to the accompanying drawings.

2 is a detailed block diagram of a satellite AT M interworking apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the satellite AMT interworking apparatus according to an embodiment of the present invention is connected to a DS3 AT line and satisfies a physical and electrical interface, and a DS3 line interface unit 101a and a pure AT cell from a DS3 frame. DS3 user network interface 101b for extracting cell, E1 line interface unit 102a connected to E1 AT line and satisfying physical and electrical interface, and E1 user network interface for extracting pure AT cell from E1 frame ( 102b), a video line interface unit 103a and a transport stream connected to a video transmission line of a moving picture expert group (MPEG) -2 transport stream to satisfy a physical and electrical interface. Video over AMT devices that are separated into AMT cells by AAL5 (ATM Adaptation Layer 5). 103b, an Ethernet line interface unit 104a connected to the Internet to satisfy the physical and electrical interfaces of Ethernet, and an IP over AT device 104b for separating an Ethernet frame into an AT cell by an AAL5 method. Include.

In addition, the satellite ATM interworking apparatus includes an AT layer processor 106 that performs address translation, cell routing, and multiplexing of the AT cell header, and a VPC table 107 that stores the address value of the AT cell header. ).

In addition, the satellite AMT interworking apparatus collects the AMT cells, adds a header to form a framer 105a constituting a transmission frame, a Reed Solomon encoder 105b which performs Reed Solomon encoding to correct a burst error, and a burst error. Interleaver 105c for distributing random data into a random error, serial converter 105d for converting parallel data into serial data, modem connection unit 105e for transmitting and receiving data by connecting to a modem, and serial data of signals outputted from the modem connection unit. A parallel converter 105i for converting into parallel data, a deinterleaver 105h for deinterleaving a signal output from the parallel converter, a reed solomon decoder 105g for decoding a signal output from the deinterleaver 105h, Remove the frame header from the signal output from the Reed Solomon decoder 105g and output only the AT cells to the AT layer processor. Di-frame group (105f), the microprocessor 108, which controls the operation of satellite TM this linkage, and, a memory 109 for storing the operating parameters (parameter) used in the satellite this TM linkage.

Looking at the function and operation process of each component constituting this structure in detail through the accompanying drawings, first, the DS3 ATM module 101 is connected to the terrestrial ATM network of 45 Mbps speed to the AMT cell processor ( 106).

The DS3 line interface unit 101a performs a physical and electrical interface function with the DS3 AT line of the terrestrial network, and the DS3 user network interface 101b is a PLCP (Physical Layer Convergence Procedure, PLCP) of 45 Mbps. A pure AMT cell is removed from the frame by removing the frame header, unallocated cells, and empty cells. On the contrary, it collects the pure ATM cells received from the satellites and configures the PLCP frame.

Next, the E1 AT module 101 is connected to a terrestrial AT network at a speed of 2 Mbps to output an AT cell to the AT layer processor 106, and the E1 line interface unit 102a is grounded. It performs physical and electrical interface with the E1 AT line of the network.

In addition, the E1 user network interface 102b performs a function of extracting a pure ATM cell from which a frame header, an unassigned cell, and an empty cell are removed from an E1 frame having a 2 Mbps level. It collects and configures E1 frame.

Next, the MPEG module 103 receives a video broadcast signal of an MPEG-2 transport stream transmitted from the terrestrial network and separates it into an AMT cell suitable for a satellite, or combines an AMT cell received from a satellite into a transport stream. Do this.

The video line interface unit 103a performs a physical and electrical interface function of a digital video broadcasting (DVB) ASI having a variable transmission rate.

The video over AT device 103b performs a function of separating or combining the transport stream into the AT cells by the AAL5 scheme.

According to this AAL5 method, two MPEG-2 transport streams are collected and a 376-byte CPCS-PDU (Common Part Convergence Sublayer-Protocol Data Unit) payload is generated. A total of 384 bytes of CPCS-PDUs are constructed by adding a CPCS-PDU trailer, and then separated into 48 bytes to form a total of eight AMT cell payloads. Adding 5 bytes of the AMT cell header to this, a total of 8 AT cells are generated and transmitted to the AT layer processor 106.

The IPoA module 104 separates the Ethernet data of the Internet network into the AT cells suitable for the satellites or combines the AT cells received from the satellites with the Ethernet data.

The Ethernet line interface unit 104a performs a physical and electrical interface function with an Ethernet line of 10 Mbps.

The IP over AT device 104b performs a function of separating or combining the Ethernet frames into the AT cells by the AAL5 scheme.

According to the AAL5 method, the incoming Ethernet frame is made of N bytes of CPCS-PDU payload (because the Ethernet frame length is variable), followed by M bytes of padding so that the CPCS-PDU is an integer multiple of 48 bytes. The CPCS-PDU trailer is added to form a complete CPCS-PDU.

That is, the CPCS-PDU length is L = N + M + 8 bytes. This is then separated into 48 bytes each to make a total of K AT cell payloads (K = L / 48). By adding 5 bytes of the AMT cell header to it, a total of K AT cells are generated and transmitted to the AT layer processor 106.

The AT layer processor 106 performs address translation, cell routing, and multiplexing of the AT cell header. The administrator may store the information about the satellite channel as a VPI / VCI (Virtual Path Identifier / Virtual Channel Identifier, hereinafter VPI / VCI) value in the VPC table 107 to connect and disconnect the channel.

That is, the AT cell having the VPI / VCI value in the VPC table 107 is transmitted as it is, and the cell having no value is discarded in the AT layer processor 106. In addition, the AT layer processor 106 performs address translation of the cell header to a predefined VPI / VCI value for the operation of the satellite channel.

In the case of the cell address conversion, the cell header address value is converted into a cell input from the AT module 101 or 102 to a value defined in the VPC table 107. Cells input from the MPEG module 103 (VoA cells) are assigned identically to all cells with fixed address values defined in the VPC table 107, and cells input from the IPoA module 104 (IPoA cells) are likewise. A fixed address value defined in the VPC table 107 is allocated equally to all cells.

In the AT cells of the AT modules 101 and 102, multiple channels may be connected, but in the case of the VoA cell and the IPoA cell, one unique channel connection may be made. When receiving a cell from a satellite, first, the cell having the address defined in the table is received as it is compared with the address value of the cell header and the cell address value stored in the VPC table 107. Discard it in the layer processor 106. At the same time, the cell is demultiplexed into the DS3 AT module 101, the E1 AT module 102, the MPEG module 103, and the IPoA module 104 by the address value of the cell header.

The AT layer processor 106 uses a utopia level 2 scheme to exchange the AT cell with the DS3 AT module 101, the E1 AT module 102, the MPEG module 103, and the IPoA module 104. . The Utopia Level 2 scheme is an interface standard for the AT layer device 106 to be connected to a plurality of physical layer devices 101, 102, 103, and 104 to exchange the AT cell.

The link enhancement module 105 can completely correct an error of 8 bytes by attaching 16 bytes when the input is 188 bytes to improve AT cell transmission performance in the satellite channel. Sign) and interleaving techniques.

That is, the link improvement module 105 corrects a burst error occurring in the satellite channel using the Reed Solomon code, and randomizes the burst error occurring in the satellite channel using the interleaving technique. It serves to distribute.

The framer 105a collects one to four ATM cells output from the ATM layer processor 106 to form a frame payload and adds a 2-byte frame header.

The Reed Solomon encoder 105b reads the signal received from the framer 105a, adds 2 t bytes of Reed Solomon parity, and outputs the result to the interleaver 105c.

The interleaver 105c interleaves the signal output from the Reed Solomon encoder 105b and outputs it to the serial converter 105d.

The serial converter 105d converts the parallel signal output from the interleaver 105c into a serial signal and outputs it to the modem connection unit 105e.

On the other hand, the parallel converter 105i converts the serial signal output from the modem connection part 105e into a parallel signal and outputs it to the deinterleaver part 105h.

The deinterleaver 105h deinterleaves the signal output from the parallel converter 105i and outputs it to the Reed Solomon decoder 105g.

The Reed-Solomon decoder 105g decodes the signal output from the deinterleaver 105h and outputs a signal whose error correction is at most t symbols to the deframer 105f.

The deframer 105f removes the frame header and outputs an AT cell of the frame payload to the AT layer processor 106.

Here, the frame structure of the satellite AMT interlock device having such characteristics will be described in detail with reference to the accompanying drawings.

FIG. 3 is a diagram illustrating a frame structure of a satellite AT linkage device according to an embodiment of the present invention.

Referring to FIG. 3, the frame of the satellite AT M interworking apparatus according to an embodiment of the present invention has a header of 2 bytes, a payload of i bytes, and a Reed Solomon Parity of 2 t bytes. It includes.

In detail, in the 2-byte frame header, the sync field means a sequence value for frame synchronization, the num field indicates the repeated frame number (0 to 7), the count field indicates the number of cells in the payload, and the code field indicates Refers to the value of t used in RS (Lead Solomon) code.

The i-byte payload then transfers one to four 53-byte AT cells, depending on the code rate and quality of service requirements of the system. At this time, services that are sensitive to transmission delays such as voice and video and are insensitive to errors are coded with a small number of extra bytes and cells, and data service cells are coded with many extra bytes and a small code rate. Considering the number of cells and the header of 2 bytes, the information bytes of the frame can be 55, 108, 161, and 214 bytes, respectively.

That is, the satellite AMT interworking apparatus according to the embodiment of the present invention uses an adaptive Reed Solomon decoder to improve ATM link, which is adaptive to a link state that changes over time by changing the parity byte during communication. You can respond with

However, in order to automatically change the parity byte of the Reed Solomon code during communication, the satellite ATM interworking apparatus of the receiving end should measure the bit error rate of the link and inform the satellite ATM interworking apparatus of the transmitting end of the parity byte. A synchronous algorithm is needed to avoid frame loss on change. The synchronization algorithm is described in detail as follows.

First, as the initial value, the Reed Solomon code of the transmitter satellite AT linkage device and the receiver satellite AT linkage device uses a maximum value t.

Secondly, the Reed Solomon decoder of the receiver satellite ATM interworking device measures link characteristics from the received data. At this time, the link characteristic is obtained by calculating the bit error rate by the number of bits corrected in the Reed Solomon decoder.

Third, the receiver satellite ATM interworking apparatus determines an appropriate t value according to the link characteristics.

Fourth, the receiving satellite ATM interworking device continuously transmits the t value determined in the code field of the transmission frame number 4 to 7 to the transmitting satellite ATM interworking device.

Fifth, the receiving satellite ATM interworking apparatus transmits a frame by recoding Solomon from the next frame number 0 to the new t value determined above.

Sixth, if the t value of the code field of frame number 4 to 7 received from the receiver satellite ATM interworking device is different from the current t value used in the Reed Solomon decoder, the next frame number 0 Reed-Solomon decoding is performed on the frame received from the receiver ATTM interworking apparatus with the new t value.

Seventh, the transmitting satellite AMT interlock device carries t used in the Reed Solomon decoder in the code field of frame number 4 to 7 and transmits it continuously to the receiving satellite AT em interworking device.

Eighth, the transmitter ATM interworking apparatus transmits a frame by reed-solomon encoding using a new t value from the next frame number 0.

Ninth, the receiver satellite ATM interworking apparatus determines the next frame number 0 if the t value of the code field of frame number 4 to 7 received from the transmitter satellite ATM apparatus is different from the current t value used in the Reed Solomon decoder. Reed-Solomon decoding is performed on the frame received from the transmitter ATM interworking apparatus with the new t value.

Repeat steps 10 and 2 through ninth. At this time, the Reed Solomon decoder continuously checks the bit error rate of the link for a certain time, and then determines whether the parity byte is changed or not according to the change trend. Since the characteristics of the communication link required by the satellite communication are 10 ^-8 to 10 ^-10 , the t value of the Reed Solomon code satisfying this condition is used.

As described above, the ATM interworking apparatus and its implementation method according to an embodiment of the present invention use an adaptive error correction technique to improve data transmission efficiency by reducing the parity byte amount when the satellite channel characteristics are good, and when the satellite channel characteristics are bad. By increasing the amount of parity bytes, you can improve the quality of the satellite link by increasing the error correction capability.

Next, the microprocessor 108 performs a central control function such as controlling each device of the satellite AT linkage device and collecting status information of a signal, and the memory 109 is an operating parameter used in the satellite AT linkage device. Performs the function of saving it.

In other words, according to the embodiment of the present invention, the satellite ATM interworking apparatus and its implementation method simultaneously transmit not only the ATM signal of the terrestrial network but also video and internet related signals to the satellite according to the interworking of the satellite network and the ground network.

The drawings and detailed description of the invention are exemplary only, and are used for the purpose of illustrating the invention only, and are not intended to be limiting or to limit the scope of the invention described in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The satellite AMT interworking apparatus and its implementation method according to the present invention can not only simultaneously transmit terrestrial ATM data, video and internet related data services to the corresponding satellite, but also can adaptively respond to burst errors that may occur in satellite channels. By using the error correction technique, the satellite AT link can be improved to provide a reliable quality service.

1 is a schematic configuration diagram of a satellite communication system including a satellite AT linkage device according to an embodiment of the present invention.

2 is a detailed block diagram of a satellite AT M interworking apparatus according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a frame structure of a satellite AT linkage device according to an embodiment of the present invention.

※ Explanation of code for main part of drawing ※

101: DS3 ATM Module

101a: DS3 line interface unit

101b: DS3 user network interface 102: E1 AT module

102a: E1 line interface unit 102b: E1 user network interface

103: MPEG module

103a: Video line interface unit

103b: Video over ATM device

104: IPoA Module

104a: Ethernet Line Interface Unit

104b: IP over ATM device

105: link improvement module 105a: framer

105b: Reed Solomon encoder 105c: interleaver

105d: serial converter 105e: modem connection

105f: Deframer 105g: Reed Solomon Decoder

105h: deinterleaver 105i: parallel converter

106: AT layer processor 107: VPC table

108: microprocessor 109: memory

Claims (16)

In the satellite ATM link device for transmitting an ATM signal to the satellite, A first AT component configured to be connected to a first terrestrial ATM network to output ATM cell data; A second ATM component connected to a second terrestrial ATM network to output ATM cell data; An MPEG component for generating a video signal of a transport stream according to the Moving Picture Experts Group (MPEG) -2 standard into ATM cell data; An IPoA component which generates and outputs Ethernet frame data as ATM cell data; A link improvement unit for distributing the generated burst error in the form of a random error (RANDOM ERROR) when the burst error occurs in the satellite channel and adaptively correcting the error according to the state of the phase channel; And AMT layer processor for multiplexing the generated ATM cell data and outputting the same to the link improving unit Satellite AMT interworking apparatus comprising a. According to claim 1, The link improving unit, A Reed Solomon encoder for correcting burst errors that may occur in the satellite channel by using Solomon coding; And An interleaver for distributing a burst error occurring in the satellite channel into a random error form using a signal received from the Reed Solomon encoder Satellite AMT interworking apparatus comprising a. The method of claim 2, The link improving unit, After collecting the AT cells received from the AT layer processor to configure a payload of a frame, adding a header to the configured payload to configure a transmission frame, and then providing a frame to the Reed Solomon encoder group; A serial converter for converting parallel data of a signal received from an interleaver into serial data; A modem connection unit performing an interface function to transmit a signal received from the serial converter to a modem; A parallel converter for converting serial data of a signal received from the modem connection unit into parallel data; A deinterleaver unit for deinterleaving a signal received from the parallel converter; A Reed-Solomon decoder for decoding the signal received from the deinterleaver unit; And A deframer for removing only the frame header of the signal received from the Reed Solomon decoder and outputting only the AT cells to the AT layer processor. Satellite ATM interlocking device comprising a. The method of claim 3, wherein The Reed Solomon encoder and the Reed Solomon decoder, And a parity byte (PARITY BYTE) during communication to adaptively cope with a link state changing over time. The method of claim 4, wherein The Reed Solomon encoder and the Reed Solomon decoder, And a frame loss according to the parity byte change by using a synchronization algorithm between a transmitting end and a receiving end. According to claim 1, The AT layer processor, And storing information about the satellite channel as a VPI / VCI (Virtual Path Identifier / Virtual Channel Identifier) value in a first table, and performing connection and disconnection with the satellite channel according to the stored VPI / VCI value. Satellite AMT interlock device. The method of claim 6, The AT layer processor, Interworking satellite ATM with the first ATM unit, the second ATM unit, the MPEG unit, and the IPoA unit according to the Utopia Level 2 scheme, which is an interface standard. Device. The method of claim 7, wherein The AT layer processor, After comparing the address value of the ATM cell and the address value defined in the first table, the ATM cell is transmitted or discarded according to the comparison result. Satellite AMT interlock device. According to claim 1, The frame of the generated ATM cells, A header including a field relating to a sequence value for frame synchronization and a field relating to the number of cells in a payload; A payload for transmitting up to four ATM cells of a predetermined byte according to code rate and quality of service requirements of the system; And Reed Solomon Parity Satellite AMT interworking apparatus comprising a. In the implementation method of the satellite AMT interlock device for transmitting an ATM signal to the satellite, a) outputting ATM cell data in connection with a first terrestrial ATM network or outputting ATM cell data in connection with a second terrestrial ATM network; b) generate video signals of transport streams according to the Moving Picture Experts Group (MPEG) -2 standard as ATM cell data or Ethernet frame data to ATM cell data; Outputting; c) if a burst error occurs in a satellite channel, distributing the generated burst error into a random error (RANDOM ERROR) to adaptively correct the error according to the state of the phase channel; And d) multiplexing the generated ATM cell data, and outputting to the link improving unit performing the step c) A method of implementing a satellite AT M interworking apparatus comprising a. The method of claim 10, Step c) is Correcting burst error that may occur in the satellite channel using Solomon coding; And Dispersing the corrected burst error into a random error form A method of implementing a satellite AT M interworking apparatus comprising a. The method of claim 11, wherein Step c) is Adaptively corresponding to a link state that changes with time by changing a parity byte during communication; And Preventing frame loss caused by the parit byte change by using a synchronization algorithm between a transmitter and a receiver A method of implementing a satellite AT M interworking apparatus comprising a. The method of claim 10, In step d), Storing the information about the satellite channel in a first table as a virtual path identifier / virtual channel identifier (VPI / VCI) value; And Performing connection and disconnection with the satellite channel according to the stored VPI / VCI value A method of implementing a satellite AT M interworking apparatus comprising a. The method of claim 13, In step d), Exchanging the generated ATM cells according to an interface standard Utopia Level 2 scheme; A method of implementing a satellite AT M interworking apparatus comprising a. The method of claim 14, In step d), Comparing an address value of the ATM cell with an address value defined in the first table; And Transmitting or discarding the ATM cell to the satellite according to the comparison result A method of implementing a satellite AT M interworking apparatus comprising a. In the recording medium comprising a method for implementing a satellite ATM link device for transmitting an ATM signal to the satellite, a) connected to the first terrestrial ATM network to output ATM cell data or to a second terrestrial ATM network to output ATM cell data; b) generate video signals of transport streams according to the Moving Picture Experts Group (MPEG) -2 standard as ATM cell data or Ethernet frame data to ATM cell data; Outputting function; c) if a burst error occurs in a satellite channel, distributing the generated burst error in the form of a random error (RANDOM ERROR) to adaptively correct the error according to the state of the phase channel; And d) a function of multiplexing the generated ATM cell data and outputting the same to the link improving unit performing the step c); The recording medium in which the program is stored.