KR20030079613A - A mobile communication system and a operating method for data transmission of wireless internet - Google Patents

Abstract

PURPOSE: A mobile communication system for transmitting wireless Internet data and an operating method therefor are provided to detect, compensate or modify a data transmission error by an RLP(Radio Link protocol), and to detect and compensate the error by a retransmission protocol, thereby raising reliability on the Internet data. CONSTITUTION: A computer(15) transceives information data by a PPP(Point to Point Protocol). A station(70) converts a signal applied from the computer(15) into a retransmission protocol by a retransmission request signal, converts the protocol into an RLP(Radio Link Protocol), and reversely processes a wirelessly received signal. A BSC(Base Station Controller)(80) demodulates RLP data by being wirelessly connected to the station(70), converts the demodulated data into retransmission protocol data, converts data inputted by the retransmission protocol into the RLP data, and transmits the RLP data to the station(70). An interface(45) requests the station(70) to retransmit a signal applied from the BSC(80) if the signal has an error, demodulates the signal if the signal does not have the error, and outputs IP data. The Internet(55) transceives the IP data. A server(65) supplies a large amount of information in TCP(Transport Control Protocol) data and IP data type.

Description

Wireless Internet Data Transmission Mobile Communication System and Operation Method {A MOBILE COMMUNICATION SYSTEM AND A OPERATING METHOD FOR DATA TRANSMISSION OF WIRELESS INTERNET}

The present invention improves data transmission errors when accessing the Internet wirelessly using a CDMA-type mobile communication system network. In particular, a mobile communication device for secondly checking and retransmitting data transmission errors occurring in a wireless section in a wireless section. And a method of operation thereof.

Internet (INTERNET) communication is a computer (PC) or a dedicated terminal to connect to the Internet (NETWORK) and retrieve a large amount of information by the authentication of the server (SERVER), the two-way communication between the computer and the server Data transfer is made.

In the above-described Internet communication, when data is received without error in the frame unit, an acknowledgment signal (ACK: ACKNOWLEDGE) acknowledging the data is transmitted to the transmitting side. When receiving the ACK signal transmits a signal of the next frame (FRAME) unit.

If the data receiving side fails to receive normal data without error, the acknowledgment signal (ACK) cannot be transmitted to the transmitting side, and the transmitting side fails to receive the acknowledgment signal (ACK) from the transmitting side within a predetermined time. It is determined that (ERROR) has occurred, and the data of the same frame unit is retransmitted.

Therefore, the transmitting side waits for a predetermined time allotted until the acknowledgment signal ACK transmitted from the receiving side is received, and retransmits when the acknowledgment signal ACK is not received even during the allotted time. There is a problem that takes a relatively long time until this is achieved, there is a need for improvement,

In particular, in the case of the wireless Internet, a part of the PATH is configured wirelessly, and the wireless path is relatively weak in noise, and noise is easily introduced from the outside, so that errors are easily generated in the transmitted data. In the case of using, since the data transmission rate is slowed, there was a problem that the activation is hindered.

Hereinafter, a data transmission method of the wireless Internet according to the prior art will be described with reference to the accompanying drawings.

It is attached to explain the prior art, Figure 1 is a functional diagram of a mobile communication system for wireless Internet data transmission according to the prior art, Figure 2 is a diagram illustrating the conversion state of the wireless Internet transmission data according to the prior art, 3 is a diagram illustrating a transmission data error processing state of the wireless Internet according to the prior art.

Referring to FIG. 1, the general wireless Internet system is a data terminal function in which a user directly receives and transmits data through the Internet, and transmits data to be transmitted by TCP (TRANSPORT CONTROL PROTOCOL) or UDP (USER DATAGRAM). PROTOCOL) data, IP (INTERNET PROTOCOL) data, and PPP (POINT TO POINT PROTOCOL) data by a dial-up program. A personal computer (PC) 10,

A mobile terminal for mobile communication, which is connected to the computer 10 by wire and transmits / receives data in a CDMA manner wirelessly, in order to accurately transmit PPP data applied from the computer 10 without errors, using RLP (RADIO LINK PROTOCOL) data. A station (MS: MOBILE STATION) 20 which converts and wirelessly transmits the CLP method and converts the received RLP data into PPP data to be applied to the computer 10;

The station 20 is connected to the base station (BTS: BASE TRANSCEIVER STATION) wirelessly to control the transmission and reception of data by the CDMA system, the RLP data input by the CDMA wireless system is converted to PPP data and outputted, and wired Input PPP data is converted to RLP data to be transmitted to the CDMA wireless over the base station (BTS), and the base station controller (BSC: BASE SITE CONTROLLER) 30 for monitoring and controlling the CDMA mobile communication system,

Matching unit (PDSN: PACKET) to allow the base station controller 30 to transmit and receive data in a matching state while simultaneously converting the input PPP data into IP data and outputting the converted IP data into PPP data. DATA SERVICE NODE) 40,

The Internet (INTERNET) 50 which is connected to the matching unit 40 and transmits IP data to form a network around the world,

It is a configuration that includes a server (SERVER) 60 for providing a large amount of information stored in the IP data format connected to the Internet 50.

Hereinafter, the wireless Internet data transmission method according to the related art having the above configuration will be described in detail with reference to FIGS. 1 to 3.

For example, when the computer 10 transmits the information data from the computer 10 to the server 60, the computer 10 prepares the information data to be transmitted and transmits the TCP data or UDP to the server 60 through the Internet. The data is converted (10A) and converted to IP data (10B), and the information data generated by converting (10C) the PPP data using a dial-up program for remote transmission is output.

As described above, the PPP data finally output by the computer 10 is converted to a plurality of frames of RLP data (20A) in order to be transmitted to the station 20 and transmitted at the same time without being transmitted to the CDMA system wirelessly. The RLP frame data is transmitted to the base station (BTS) through the corresponding radio path as CDMA wireless data and received by the base station controller 30 (30A).

The base station controller (BSC) 30 analyzes the received RLP data 30A to search for transmission errors by the RLP protocol, and when there is a transmission error by the RLP protocol, requests for retransmission by the RLP interval, that is, The station 20 requests retransmission of the corresponding RLP data.

When there is no transmission error in the received RLP data 30A, the base station controller 30 converts the data into PPP data by the corresponding demodulation process 40A and matches the matching unit 40 in a matching state. Output

The matching unit 40 determines whether the PPP data 40A received from the base station controller 30 is received by the PPP protocol without a transmission error by analyzing the PPP data 40A by the CRC test, and when the matching unit 40 is received without the transmission error, In this case, the data is converted into IP data and transmitted to the server 60 through the Internet 50.

Hereinafter, a case in which an error occurs in the information data transmitted from the computer 10 to the server 60 will be described in detail with reference to FIG. 3.

In the description of FIG. 3, some of the processes will be described in detail in the description of FIG.

The information data created by the computer 10 is, for example, converted into TCP data, IP data and PPP data 15 in order and applied to the station 20 which is a CDMA mobile communication terminal.

The station 20, which is the CDMA mobile communication terminal, converts the applied PPP data 15 into a plurality of RLP frame data 25 using the RLP protocol in order to transmit the CDMA wireless data. The plurality of RLP frame data 25 is transmitted to the base station controller (BSC) 30 via a mobile communication base station (BTS) by transmitting a CDMA wireless signal.

The base station controller 30 checks that the received RLP frame data 25 has no transmission error by the RLP protocol, and transmits a corresponding control signal to the station 20 when there is a transmission error. Retransmission of frame data 25 is requested.

The RLP data of which some errors are recovered in the base station controller 30 is converted into PPP data 35 by RLP demodulation and applied to the matching unit 40. The matching unit 40 receives the input PPP data 35 ) Is converted into IP data 45 by PPP demodulation and transmitted to the corresponding server 60 via the Internet 50.

As described above, the server 60 that has received the error-free or error-free IP data transmits an acknowledgment (ACK) signal 65 to the computer 10, and transmits the acknowledgment (ACK) signal 65. The received computer outputs PPP data 15 in the next frame unit.

The PPP protocol operated by the matching unit 40 does not have a function of retransmission request and retransmission, and if there is an error by CRC checking, a corresponding frame is discarded.

In the RLP section, which is a radio transmission section by a radio path between the station 20 and the base station controller 30, which is a mobile communication terminal, PPP data are divided and transmitted in units of RLP frames 25 by the RLP protocol. When an error occurs in the RLP data in the frame unit (FR ') (25'), the transmitting side requests retransmission in the frame unit.

However, when an error occurs in the plurality of RLP frame data 25 'in the section of the radio path, the base station controller 30 receiving the error-produced RLP frame data 25' causes an error by retransmission. Does not recover all of the corresponding RLP frame data 25 ′, and some of the RLP frame data 25 ′ has not been recovered and is converted into PPP data 35 ′ and transmitted to the matching unit 40.

The matching unit 40 only checks whether an error has occurred in the PPP data 35 'received by the PPP CRC check, and there is no retransmission and retransmission request function. Thus, when an error occurs as described above, By discarding the PPP data 35 ', it is not transmitted to the server 60.

Since the server 60 does not receive the IP data, the server 60 cannot transmit an acknowledgment (ACK) response signal 65 to the computer 10, and the computer 10 cannot receive the server 60 for a predetermined allotted time. If an acknowledgment (ACK) response signal is not received (TIME OUT), it is determined that an error has occurred in the transmitted PPP data 15, and the same PPP data 15 of the frame FRAME is retransmitted.

In the related art, when a large amount of errors occurring in the RLP interval are not recovered, the computer 10 waits for a predetermined time (TIME OUT), and then stores the TCP / IP data of the corresponding frame. Retransmission to 60 and the error checking process as described above is repeated.

Therefore, the prior art of the above configuration has a problem that the data retransmission between the computer 10 and the server 60 is generated, which takes a long time.

In addition, the computer 10 waits for a predetermined time and then retransmits the packet. Thus, the computer 10 has a problem in that a lot of time is delayed in transmitting the corresponding packet data.

According to the present invention, when the transmission error of data generated in the wireless section is not completely recovered by the RLP protocol of the wireless section and is transmitted to the next stage, the next stage checks the transmission error to request retransmission. It is the purpose.

The present invention has been made in order to achieve the above object, in a mobile communication system for connecting a computer and a server of the Internet through a wireless transmission path; A computer which accesses the Internet and transmits and receives information data by a PPP protocol through bidirectional communication; A station which is a CDMA mobile communication terminal which converts a signal applied from the computer into a retransmission protocol retransmitted by a retransmission request signal, converts the signal into an RLP protocol, and then wirelessly transmits the received signal in the reverse order; A base station controller for RLP demodulating the RLP data input by wireless connection through the station and the base station and converting the RLP data into retransmission protocol data, and converting the data input to the retransmission protocol into RLP protocol data and transmitting the RLP data to the station; A matching unit for processing the signal applied from the base station controller to request retransmission to the station if there is an error, and processing and demodulating the PPP protocol to output the IP data if there is an error; An internet comprising a network connected to the matching unit and connected worldwide to transmit and receive IP data; It comprises a server for providing a large amount of information stored in the form of TCP data and IP data connected to the Internet.

In addition, the present invention provides a mobile communication system in which a computer and a server of the Internet are connected through a wireless transmission path; The mobile communication system includes a wired checking process for checking whether a PPP data signal through a wire is input; A wireless conversion step of converting the input PPP data into data using a retransmission protocol and converting the input PPP data into data using an RLP protocol when it is confirmed that the PPP data signal is input in the process; A wireless transmission process of converting the RLP data converted by the above process into CDMA wireless data and transmitting them through a wireless path; Determining whether to repeat the above steps and returning to the streamline checking step if the step is repeated; If it is determined in the wired confirmation process that the PPP data signal is not input, it is determined whether the RLP data signal is inputted through the radio. If the RLP data is not inputted as a signal, the radio is fed back to the wired confirmation process. Identification process; If it is confirmed that the RLP data signal is input in the process, the RLP data is processed by the input RLP data, and the data having an error request retransmission by the RLP protocol, and the RLP demodulation of the received RLP data signal to retransmit the protocol. A retransmission protocol process of converting and outputting the data of the data; Check whether the retransmission protocol data signal inputted by the above procedure has occurred by retransmission protocol processing, and if an error occurs, request retransmission by retransmission protocol, demodulate the retransmission protocol to output PPP data, and output to PPP protocol. By converting and outputting the IP data by the processing and demodulation, the retransmission protocol processing proceeds to the continuous process.

1 is a functional configuration of a mobile communication system for wireless Internet data transmission according to the prior art,

2 is a diagram illustrating a conversion state of wireless Internet transmission data according to the prior art;

3 is a diagram illustrating a transmission data error processing state of a wireless Internet according to the prior art;

4 is a functional diagram of a wireless Internet data transmission mobile communication system according to the present invention,

5 is an explanatory diagram of a wireless Internet transmission data conversion state according to the present invention according to the present invention;

6 is an explanatory diagram of a wireless Internet transmission data error processing state according to the present invention;

7 is a flowchart illustrating a wireless internet data transmission operation according to the present invention.

** Explanation of symbols on the main parts of the drawing **

10,15 computer 20,70 station

30,80: base station controller 40,45: matching part

50,55: Internet 60,65: Server

Hereinafter, a wireless internet data transmission mobile communication system and an operation method thereof according to the present invention will be described with reference to the accompanying drawings.

It is attached to explain the present invention, Figure 4 is a functional diagram of the wireless Internet data transmission mobile communication system according to the present invention, Figure 5 is a diagram illustrating the conversion state of the wireless Internet transmission data according to the present invention according to the present invention, 6 is a diagram illustrating a wireless Internet transmission data error processing state according to the present invention, and FIG. 7 is a flowchart illustrating a wireless Internet data transmission operation according to the present invention.

Referring to FIG. 4, the mobile communication system for wireless internet data transmission according to the present invention is a mobile communication system in which a computer 15 and a server 65 of the Internet 55 are connected through a wireless transmission path. To

A computer 15 which accesses the Internet 55 and transmits and receives information data by PPP (POINT TO POINT PROTOCOL) protocol (PROTOCOL) by bidirectional communication;

The signal from the computer 15 is converted into a retransmission protocol for retransmission only in the corresponding section by the retransmission request signal, and then converted to the RLP protocol for wireless transmission and the signal received wirelessly is processed in the reverse order. After converting the information data of the PPP protocol applied from the computer 15 into a corresponding memory temporarily, converting the data into a retransmission protocol for re-output by the retransmission request signal by the retransmission protocol, RLP (RADIO LINK PROTOCOL) The RLP-converted information data is wirelessly transmitted to the base station controller through the CDMA wireless transmission path as described above, and the signal transmitted from the base station controller through the wireless transmission path is reversed. CDMA outputting PPP data to the computer 15 Station 70 consisting of a mobile communication terminal,

RLP demodulates the RLP data input by wireless connection through the base station (BTS: BASE TRANSCEIVER SYSTEM) and converts the data into retransmission protocol data, and converts the data input into the retransmission protocol into RLP protocol data. By transmitting to the station, the station 70 is wirelessly connected to the station through the CDMA wireless transmission path and the base station (BTS) to transmit and receive the RLP information data, and the radio signal received in the wireless transmission path by the RLP processing The data of the error frame requests retransmission by the RLP protocol, and the data of the RLP frame without error is RLP demodulated, demodulated into a data signal of the retransmission protocol, and then output to the matching unit 45, and the matching unit 45. The data signal of the retransmission protocol inputted from the Rx protocol is converted into a signal of the RLP protocol and And a base station controller (80) to be sent to the Orientation 70,

The signal applied from the base station controller 80 is processed by the retransmission protocol to request retransmission to the station 70 when there is an error in the corresponding data signal, and if there is no error, the PPP protocol is processed and demodulated and output as IP data. By inputting the signal applied from the base station controller 80 into a matching state and processing by the retransmission protocol, an error signal is requested to be retransmitted to the station. The PPP data is converted into PPP data by retransmission protocol demodulation, and the PPP data is CRC-tested by the PPP protocol, and only the signals without CRC error are PPP demodulated and converted into IP data, and then output to the server 65. The server 65 IP data inputted from the network is processed in the reverse order described above and output to the international controller 80 in a matched state. And 45,

An Internet (INTERNET) 55 which is connected to the matching unit 45 and is connected to the network to transmit and receive IP data worldwide;

It is composed of a server (SERVER) 65 which provides a large amount of information stored in the form of TCP data and IP data connected to the Internet 55.

In addition, referring to FIG. 7, the mobile communication system for wireless Internet data transmission according to the present invention is a mobile communication system in which a computer 15 and a server 65 of the Internet 55 are connected through a wireless transmission path. In communication system operation,

The mobile communication system is composed of a station 70, a base station (BTS), the base station controller 80 and the matching unit 45, and a wired confirmation process (S100) for checking whether a PPP data signal is input through a wire; ,

When it is confirmed that the PPP data signal is input in the wired confirmation process (S100), a wireless conversion process of converting the input PPP data into retransmission protocol data by the retransmission protocol and converting it into RLP data by the RLP protocol again (S110). )and,

A wireless transmission process (S120) of converting the RLP data converted by the wireless conversion process (S110) into CDMA wireless data and transmitting the CDMA wireless path;

If it is determined whether to repeat the process and repeat if the feedback (FEEDBACK) to the streamline check process (S100) and if not repeat the continuing process (S130) and,

If it is determined in the wired checking process (S100) that it is determined that the PPP data signal is not input, check whether the RLP data signal through the wireless is input, and if the RLP data signal is not input by the confirmation, the wired Wireless confirmation process (S140) and feedback to the confirmation process (S100),

When it is confirmed that the RLP data signal is input in the wireless confirmation process (S140), the RLP data of the corresponding frame (FRAME) in which an error occurs by RLP processing the input RLP data is requested to be retransmitted by the RLP protocol, A retransmission protocol process (S150) of converting and outputting the received RLP data signal into RLP demodulation data of a retransmission protocol;

Check whether a retransmission protocol data signal input by the retransmission protocol process (S150) has occurred by retransmission protocol processing, and if an error occurs, request retransmission by retransmission protocol processing, and demodulate the retransmission protocol to PPP data. And a retransmission protocol process (S160) for converting and outputting the IP data by processing and demodulation by the PPP protocol, and proceeding to the continuous process (S130).

Hereinafter, the present invention having the above configuration will be described in detail with reference to FIGS. 4 to 7.

The computer 15 converts the information data to be communicated with the server 65 into an information data signal by TCP or UDP, converts it into IP data for transmission via the Internet, and transmits it to the destination of the transmission correctly. The PPP data is converted into PPP data and applied to the station 70 which is a terminal of the CDMA mobile communication system.

The PPP data applied by the computer 15 to the station 70, which is a CDMA terminal, is retransmitted to minimize the occurrence of data errors due to retransmission by retransmitting the data of the corresponding frame unit when a failure occurs. Convert to retransmission protocol data by protocol.

The retransmission protocol has a function of converting or modulating the information data to be transmitted in a frame unit allocated to a predetermined size and then transmitting the retransmission protocol to a receiver having a built-in or equipped retransmission protocol.

The receiving side having the retransmission protocol built-in or equipped with, checks the information data signal of the transmitted and received frame unit, checks whether an error (ERROR) occurred during the transmission, and if the error occurs in the received data A retransmission request signal is generated and applied to the transmitting side of the retransmission protocol.

The transmission side retransmission protocol receiving the retransmission request signal is a protocol having a function of transmitting the retransmission protocol data of the corresponding frame to the receiving side.

The reception side retransmission protocol is demodulated by the retransmission protocol and outputs when there is no error in the received retransmission protocol data.

The retransmission protocol is retransmitted by the corresponding retransmission request signal between both sides of the transmission and reception in which the retransmission protocol is installed.

The station 70 converts the information data signal converted into the retransmission protocol data by the retransmission protocol into RLP data by RLP (RADIO LINK PROTOCOL) for wireless transmission, modulates the radio signal into CDMA wireless data, and transmits the radio. do.

As described above, the signal transmitted wirelessly from the station 70 to the CDMA system is applied to the base station controller 80 through the base station (BTS).

Since the base station controller 80 has a built-in RLP protocol, the base station controller 80 processes the received RLP data.

The RLP data checks whether an error has occurred by the RLP processing, and if an error occurs, requests the RLP to retransmit the RLP data of the frame in which the error has occurred and sends the data as described above. It is shown in detail in 5.

When the simultaneous error occurs in a plurality of frames, the RLP protocol makes a request for retransmission of the error. However, the RLP protocol does not receive all of the RLP data of the plurality of frames by retransmission and RLP demodulates the output.

As described above, the matching unit 45 which receives the data converted into the retransmission protocol by RLP demodulation from the base station controller 80 inputs the data of the retransmission protocol in a matching state.

The data of the retransmission protocol inputted in the matching state as described above confirms whether an error has occurred by the processing of the retransmission protocol.

When an error occurs in the retransmission protocol data received by processing the retransmission protocol, a request signal of a retransmission protocol for retransmitting the corresponding frame in which the error is generated is generated, and transmitted to the station 70 transmitted by the retransmission protocol. .

The station 70 receiving the retransmission request signal by the retransmission protocol as described above retransmits the data of the corresponding frame by the retransmission protocol, and the data transmission / reception state as described above is shown in detail in FIG.

The matching unit 45, which has received all of the normal frame data without error by repeating the above process, converts the PPP data by demodulating by the retransmission protocol.

The matching unit 45 performs CRC checking on the PPP data converted as described above by the PPP protocol, and converts the data into IP data by performing PPP demodulation on only the data of an error-free frame by the CRC checking.

As described above, the IP data output from the matching unit 45 is transmitted through the Internet 55, and received by the server 65 having a corresponding address of a transmission destination.

The server 65 confirms the information data transmitted by the computer 15 by converting the received IP data into TCP or UDP data through IP demodulation and performing the corresponding processing.

The server 65 receiving the normal data as described above outputs an acknowledgment (ACK) signal indicating that the reception is completed in the opposite direction, so that the computer 15 receives and transmits the next data in the corresponding order. By this repetition, information data is transmitted and received between the computer 15 and the server 65.

Referring to Fig. 7 attached to the processing sequence of the above process in detail, the mobile communication system consisting of the station 70, the base station (BTS), the base station controller 80 and the matching unit 45, the PPP protocol Check whether the generated PPP data is input (S100).

When it is confirmed by the above confirmation (S100) that PPP data is input, the PPP data is retransmitted by processing by the retransmission protocol, that is, by temporarily storing the PPP data and performing retransmission protocol modulation. The data is converted to RLP data using the RLP protocol (S110).

The mobile communication system converts the RLP-converted RLP data into CDMA data as described above, and modulates the RLP data to be wirelessly transmitted through the CDMA wireless path (S120).

If it is determined that the PPP data is not input in the wired confirmation process (S100), the mobile communication system checks whether the RLP data is wirelessly input through a wireless path, and if the RLP data is not input, the wired confirmation. Feedback to the process (S140).

When it is determined that the wireless RLP data is wirelessly input in the wireless confirmation process (S140), the RLP process is performed by the RLP protocol to transmit a signal for requesting retransmission of the RLP data of the frame in which an error occurs, and the RLP protocol is transmitted. When the corresponding time set by the RLP data, the RLP demodulation is converted into retransmission protocol data (S150).

As described above, the retransmission protocol data converted by RLP demodulation checks whether an error has occurred due to the processing of the retransmission protocol, and if an error occurs, retransmission by the retransmission protocol is requested.

When retransmission of the data of the frame received in the state where an error occurs by the retransmission protocol is completed or there is no error in the received retransmission protocol data, the PPP protocol converts the data.

As described above, the PPP data converted by the PPP protocol checks whether an error has occurred by the CRC check, converts only the signal whose error has not occurred by the CRC check into IP data by the IP protocol, and transmits it to the Internet 55. Output (S160).

If it is determined whether to repeat the above process and continue to repeat, the feedback to the streamline confirmation process (S100), and if not repeated ends (S130).

The present invention as described above, the first detection and correction of the data of the error (ERROR) frame generated in the transmission via the CDMA wireless path by the RLP protocol, the data that cannot be corrected by the RLP protocol is retransmission protocol It is a technical idea to improve the reliability of the wireless Internet data transmission mobile communication system and the reliability of the Internet data transmitted / received because the dual correction is performed by retransmission.

According to the present invention having the above-described configuration, in accessing the Internet using a mobile communication system, data transmission errors occurring in a CDMA wireless path, which is a path between a computer as a terminal and a server on the Internet, are detected and corrected by the RLP protocol. Alternatively, there is an industrial use effect of improving the reliability of Internet data transmitted and received by performing detection and correction by the retransmission protocol simultaneously with correction.

In addition, as described above, second verification of the data transmitted and received through the CDMA path of the CDMA mobile communication system by the RLP protocol and the retransmission protocol is performed, and the data of the error frame is retransmitted, thereby transmitting the data wirelessly. There is an effect of improving the reliability of the mobile communication system,

Claims (6)

In a mobile communication system for connecting a computer and a server of the Internet through a wireless transmission path, A computer which accesses the Internet and transmits and receives information data according to a PPP protocol through bidirectional communication; A station which is a CDMA mobile communication terminal which converts a signal applied from the computer into a retransmission protocol retransmitted by a retransmission request signal and then converts it into an RLP protocol and transmits the radio signal simultaneously in the reverse order; A base station controller for converting RLP data input by wireless connection through the station and the base station to RLP demodulation and converting the data into retransmission protocol data, and converting the data input to the retransmission protocol into RLP protocol data and transmitting the RLP protocol data to the station; A matching unit for re-transmitting the signal applied from the base station controller to request retransmission to the station if there is an error and processing and demodulating the PPP protocol if there is no error; An internet made up of a network connected to the matching unit to transmit and receive IP data worldwide; And a server providing a large amount of information stored in the form of TCP data and IP data connected to the Internet. The method of claim 1, wherein the station, After storing the information data of the PPP protocol that is applied from the computer, and converts to the retransmission protocol to be output again by the retransmission request signal by the retransmission protocol, it is converted back to the information data of the RLP protocol, and RLP converted as described above A CDMA mobile communication system in which information data is wirelessly transmitted to the base station controller through a CDMA wireless transmission path, and signals transmitted from the base station controller through the wireless transmission path are processed in the reverse order and output to the computer as PPP data. Wireless Internet data transmission mobile communication system comprising a terminal. The method of claim 1, wherein the base station controller, The RLP information data is transmitted and received wirelessly through the station and the CDMA wireless transmission path and the base station, and the signal received wirelessly through the wireless transmission path requests retransmission of data in an error frame by RLP processing and there is no error. The data of the RLP frame is RLP demodulated and demodulated into data of a retransmission protocol and then output to the matching unit. The signal of the retransmission protocol input from the matching unit is converted into a signal of the RLP protocol and transmitted to the station. Wireless internet data transmission mobile communication system. The method of claim 1, wherein the matching unit, Input the signal applied from the base station controller in a matched state, process the retransmission protocol, request a retransmission of an error signal to the station, and convert an error-free signal into PPP data by retransmission protocol demodulation, and at the same time, PPP data CRC process by PPP protocol, PPP demodulates only the signal without CRC error, converts it into IP data, and outputs it to the server. IP data input from the server is processed in the reverse order and output to the base station controller in a matched state. Wireless Internet data transmission mobile communication system, characterized in that. In the mobile communication system operation to connect the computer and the server of the Internet through the wireless transmission path, The mobile communication system includes a wired confirmation process for confirming whether a PPP data signal is input through a wire; A wireless conversion process of converting the input PPP data into retransmission protocol data by the retransmission protocol and converting the input PPP data into RLP data by the RLP protocol when the PPP data signal is input in the process; A wireless transmission process of converting the RLP data converted by the above process into CDMA wireless data and transmitting the wireless path; If it is determined whether to repeat the steps and repeat the process to return to the wired check process, if not repeated, the wireless Internet data transmission mobile communication system operating method, characterized in that consisting of a continuous process consisting of. The method of claim 5, If it is determined in the wired confirmation process that the PPP data signal is not input, it is checked whether the RLP data signal is inputted through the radio. If the RLP data signal is not inputted, the radio is fed back to the wired confirmation process. Identification process, If it is confirmed that the RLP data signal is input in the process, the RLP data is processed by the input RLP data, and the data having an error request retransmission by the RLP protocol, and the RLP demodulation of the received RLP data signal to retransmit the protocol. A retransmission protocol for converting and outputting data of Check whether an error has occurred by retransmission protocol processing of the retransmission protocol data signal inputted by the above process, and if an error occurs, request retransmission by retransmission protocol processing, demodulate the retransmission protocol into PPP data, output the PPP protocol And converting into IP data by processing and demodulation, and further comprising a retransmission protocol processing proceeding to the continuous process.