KR100316247B1 - High speed access point system for wireless LAN and method thereof - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a fast access point device of a wireless LAN and a method of operating the same, which connect wireless fixed terminal devices or wireless mobile terminal devices to an Ethernet network through wireless access.

According to the present invention, the present invention relates to a high speed access point device of WLAN and its operation method, and more particularly, to provide a high-speed wired and wireless connection, and to move between sectors within a cell or to move from one cell to another cell. Provided are a fast access point device of a wireless LAN providing a Mobile IP function capable of automatically switching call channels, and a method of operating the same.

Description

High speed access point device for wireless LAN and its operation method {High speed access point system for wireless LAN and method

The present invention relates to a high speed access point device of WLAN and its operation method, and more particularly, to provide a high speed wired / wireless connection, and to automatically change the current call channel when moving between sectors within a cell or moving from one cell to another. The present invention relates to a fast access point device of a wireless LAN providing a switchable Mobile IP function and a method of operating the same.

Conventional wired LAN (Local Access Network) has a problem that it is impossible to expand the effective space in the office, rapid installation and the use range of the terminal by connecting a cable to the terminal device.

In order to overcome this problem, wireless LAN was born, and wireless LAN introduced to overcome this problem provides only 10BASE-T LAN connection function of IEEE 802.3 as a wired connection and 2.4 GHz frequency of IEEE802.11 as a wireless connection. Provides a 2 Mbps transfer rate in the band.

However, wireless LANs also have a problem in that they can transmit narrowband service data only because the transmission speed is low.

In order to overcome this problem, various high-speed wireless LANs are currently being developed, and research and development to support such high-speed transmissions are currently in progress.

The present invention has been made to solve the problems of the prior art as described above, in order to connect wireless terminal devices to a wired Ethernet network in a mobile environment, the function of converting wired data into wireless data and converting wireless data into wired data. It is an object of the present invention to provide a fast access point apparatus and a method of operating a wireless LAN for providing broadband multimedia services of 2 Mbps or more as well as narrowband services of less than 2 Mbps to terminal users.

1 is a network configuration diagram of a wireless LAN applied to the present invention,

FIG. 2 is a block diagram showing the configuration of a fast access point device of the wireless LAN shown in FIG. 1;

3 is a block diagram showing the configuration of the system control unit shown in FIG.

4 is a block diagram showing the configuration of the PCMCIA connection unit shown in FIG.

FIG. 5 is a block diagram illustrating a configuration of a wireless access processing unit shown in FIG. 2.

FIG. 6 is a flowchart illustrating Mobile IP operation of the CPU illustrated in FIG. 3.

According to the present invention for achieving the object as described above, includes an Ethernet connection, a dual-speed high-speed Ethernet transceiver, a system controller, a PCMCIA connection and a wireless access processing unit; The Ethernet connection unit receives an Ethernet reception signal and converts it into differential reception data and transmits the differential transmission data to the dual speed fast Ethernet transceiver. The high speed Ethernet transceiver receives the differential received data from the Ethernet connection unit, converts the data into MII (Media Independent Interface) received data, and transmits the received data to the system controller, and transmits the MII from the system controller. Receives data and converts it into differential received data and transmits the data to the Ethernet connection unit. The system controller receives MII received data from the double speed Fast Ethernet transceiver and converts the data into CPU data in the form of wireless data and transmits the data to the PCMCIA connection unit. The PCMC Receives CPU data in the form of wireless data from an IA connection unit and converts the data into MII transmission data and transmits the data to the dual-speed Fast Ethernet transceiver. The PCMCIA connection unit receives CPU data from the system control unit and converts the CPU data into PCMCIA data. And transmits the PCMCIA data from the wireless access processor to convert the CPU data to the system controller. The wireless access processor receives the PCMCIA data from the PCMCIA access unit, and is shared by various wireless terminal devices. After determining the priority of the channel according to the characteristics of the service, assigning and transmitting a radio channel to each wireless terminal, receiving data from the wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to the priority. Radish characterized by The LAN of the access point device is provided.

In addition, a method of operating an access point device of a wireless LAN including an Ethernet connection unit, a dual-speed high-speed Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit, receives an Ethernet received signal and converts it into differential received data. Transmitting to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; And a fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the service characteristics of the wireless channel shared by the various wireless terminal devices, and then assigning and transmitting the wireless channel to each wireless terminal. Provided is a method of operating an access point device of a wireless LAN.

In addition, a method of operating an access point device of a wireless LAN including an Ethernet connection unit, a dual-speed high-speed Ethernet transceiver, a system controller, a PCMCIA connection unit, and a wireless access processing unit, receives data from a wireless terminal and converts the data into PCMCIA data. A first step of transmitting to the PCMCIA access unit according to the priority; A second step of converting the PCMCIA data transmitted in the first step into CPU data and transmitting the same to the system controller; A third step of converting CPU data in the form of wireless data transmitted in the second step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A fourth step of converting the MII transmission data transmitted in the third step into differential reception data and transmitting the difference to the Ethernet connection unit; There is provided a method for operating an access point device of a wireless LAN, comprising a fifth step of converting the differential transmission data transmitted in the fourth step into an Ethernet transmission signal and transmitting the same to an Ethernet network.

In addition, a method of operating an access point device of a wireless LAN including an Ethernet connection unit, a dual-speed high-speed Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit, receives an Ethernet received signal and converts it into differential received data. Transmitting to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the converted PCMCIA data to the wireless access processing unit; and a wireless channel shared by several wireless terminal devices in the PCMCIA data transmitted in the fourth step. A fifth step of determining priorities according to characteristics and allocating and transmitting radio channels to each wireless terminal; A sixth step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority; A seventh step of converting the PCMCIA data transmitted in the sixth step into CPU data and transmitting the same to the system controller; An eighth step of converting CPU data in the form of wireless data transmitted in the seventh step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A ninth step of converting the MII transmission data transmitted in the eighth step into differential reception data and transmitting the difference to the Ethernet connection unit; And a tenth step of converting the differential transmission data transmitted in the ninth step into an Ethernet transmission signal and transmitting the same to the Ethernet network.

A computer-readable recording medium having recorded thereon a program capable of executing an access point device operating method of a wireless LAN including an Ethernet connection unit, a double speed Fast Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit. A first step of receiving an Ethernet received signal and converting the received signal into differential received data and transmitting the same to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting the same to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; And a fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the characteristics of the service, and then assigning the wireless channel to each wireless terminal. A computer readable recording medium having recorded thereon a program that can be provided is provided.

A computer-readable recording medium having recorded thereon a program capable of executing an access point device operating method of a wireless LAN including an Ethernet connection unit, a double speed Fast Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit. A first step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to a priority; A second step of converting the PCMCIA data transmitted in the first step into CPU data and transmitting the same to the system controller; A third step of converting CPU data in the form of wireless data transmitted in the second step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A fourth step of converting the MII transmission data transmitted in the third step into differential reception data and transmitting the difference to the Ethernet connection unit; There is provided a computer-readable recording medium having recorded thereon a program which can be executed, including the fifth step of converting the differential transmission data transmitted in the fourth step into an Ethernet transmission signal and transmitting the same to the Ethernet network.

A computer-readable recording medium having recorded thereon a program capable of executing an access point apparatus operating method of a wireless LAN including an Ethernet connection unit, a double speed Fast Ethernet transceiver, a system controller, a PCMCIA connection unit, and a wireless access processing unit. A first step of receiving an Ethernet received signal and converting the received signal into differential received data and transmitting the same to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; A fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the characteristics of the service, the radio channel shared by the various wireless terminal devices, and then assigning and transmitting the wireless channel to each wireless terminal; A sixth step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority; A seventh step of converting the PCMCIA data transmitted in the sixth step into CPU data and transmitting the same to the system controller; An eighth step of converting CPU data in the form of wireless data transmitted in the seventh step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A ninth step of converting the MII transmission data transmitted in the eighth step into differential reception data and transmitting the difference to the Ethernet connection unit; There is provided a computer-readable recording medium having recorded thereon a program that can be executed, including the tenth step of converting the differential transmission data transmitted in the ninth step into an Ethernet transmission signal and transmitting the same to the Ethernet network.

In the following, with reference to the accompanying drawings, a preferred embodiment according to the present invention will be described in detail.

1 is a diagram illustrating a wireless LAN network applied to the present invention, in which a wireless LAN network is conceptually one of an operator terminal 101, a high speed access point device 102 of a wireless LAN, a wireless access processing unit 103, and a user terminal. Notebook PC 104.

The operator terminal 101 performs a function of controlling and managing the high speed access point device 102 of the wireless LAN.

The high-speed access point device 102 of the wireless LAN is connected to an Ethernet network using a 10BASE-T of IEEE 802.3 or a high-speed LAN connection of 100BASE-TX as a wired connection, and is connected to an IEEE 802.11a 5 as a wireless connection. It provides a 6 ~ 54 Mbps wireless data transmission function in the GHz frequency band, and transmits and receives broadband multimedia data with wireless terminal devices through a wireless radio frequency (RF) signal.

The wireless access processing unit 103 is connected to the notebook PC 104 through a PCMCIA (Personal Computer Memory Card International Association) interface of 68-pin standard and connected to the notebook PC 104 of IEEE 802.11a. It provides 6 to 54 Mbps wireless data transmission in the 5 GHz frequency band. In addition, the wireless access processing unit 103 is commonly used not only in the terminal device but also in the high-speed access point device 102 of the wireless LAN, thereby improving the compatibility, productivity, and function of the module.

FIG. 2 is a block diagram illustrating a configuration of a high speed access point device of a wireless LAN shown in FIG. 1.

The RS232C connection unit 201 performs a function of receiving an RS232 received signal from an operator terminal and transmitting the received RS232 signal to the system control unit 204, and receiving and transmitting RS232 transmission data from the system control unit 204 to an operator terminal. .

The Ethernet connection unit 202 receives the Ethernet received signal from the Ethernet network, performs a signal connection function, a signal conversion function, and an impedance matching function, and then performs dual-speed high-speed reception of differential received data for 10BASE-T or 100BASE-TX. Performs a function of transmitting to the Ethernet transceiver 203. In addition, by receiving the differential transmission data for 10BASE-T or 100BASE-TX from the dual-speed high-speed Ethernet transceiver 203 performs the signal connection function, signal conversion function and impedance matching function to transmit the Ethernet transmission signal to the Ethernet network And receiving the center draw signal from the double speed Fast Ethernet transceiver 203 to maintain the transmission reference voltage of the differential transmission data and the reception reference voltage of the differential reception data.

The dual-speed Fast Ethernet transceiver 203 receives 10BASE-T or 100BASE-TX differential received data from the Ethernet connection unit 202 and decodes Manchester when receiving 10BASE-T differential received data. When performing the function and serial parallel conversion function, and receiving differential reception data for 100BASE-TX, it performs the MLT-3 decoding function, the decramble function, the 4B / 5B decoding function, and the serial parallel conversion function.

In addition, a MII (Media Independent Interface) reception valid signal, an MII reception clock, and MII reception data in 4-bit units are transmitted to the system controller 204, and an invalid symbol is transmitted. In the case of reception, the MII reception error signal is enabled. At the same time, when transmission and reception occur, the MII collision signal is validated, and when the carrier is received, the MII carrier signal is validated and transmitted to the system controller 204.

In addition, upon receiving the MII transmission valid signal synchronized with the MII transmission clock and the MII transmission data in 4-bit unit from the system control unit 204, the parallel serial conversion function and the Manchester encoding function are performed during the 10BASE-T link configuration. When configuring a link for 100BASE-TX, a differential serial data conversion function, a 4B / 5B encoding function, a mixing function, and an MLT-3 encoding function are performed to transmit differential transmission data to the Ethernet connection unit 202.

When the MII transmission error signal is received from the system control unit 204, an invalid symbol is generated. When the MII management data synchronized with the MII management data clock is received from the system control unit 204, the operation is performed. By changing the mode, the MII management data for its own operating state is synchronized with the MII management data clock and transferred to the system controller 204.

The system controller 204 largely performs the function of controlling the RS232 connector 201, the dual speed Fast Ethernet transceiver 203, and the PCMCIA connector 205 by a program.

The system controller 204 transmits a CPU address, an address latch signal, a PCMCIA card valid signal, a CPU control signal, and a PCMCIA card output valid signal in units of 26 bits to the PCMCIA connector 205. When one of the two-bit PCMCIA card output valid signals is enabled, the multimedia data is received from the Ethernet network, converted into CPU data of 16 baht units (converted to wireless data format), and transferred to the PCMCIA connection unit 205. do.

In addition, when receiving the CPU data of the 16-bit unit corresponding to the multimedia data of the wireless terminal devices from the PCMCIA connection unit 205, and performs the function of storing in the synchronous DRAM (Synchronous DRAM) in the system control unit 204, 2 bits When all the PCMCIA card valid signals of the unit are validated, the CPUMC signal is received from the PCMCIA connector 205 to detect the state of the PCMCIA connector.

The PCMCIA connection unit 205 converts the CPU address in 26-bit units into a PCMCIA address in 26-bit units when the address latch signal is valid, and the system control unit 204 when one signal of the PCMCIA card valid signals in the 2-bit unit is valid. 16-bit CPU data is inputted into the PCMCIA data in 16-bit units, and transmitted to the wireless access processor 206.

Also, the PCMCIA data received from the wireless access processor 206 is converted into 16-bit unit CPU data and transferred to the system control unit 204. When the PCMCIA card output valid signal is enabled, the CPU It converts control signals to PCMCIA control signals.

In addition, when all of the two-bit PCMCIA card valid signal is validated, it receives the PCMCIA status signal from the wireless access processing unit 206, converts it into a CPU status signal, and transmits it to the system controller 204.

The wireless access processing unit 206 transmits a PCMCIA status signal to the PCMCIA access unit 205, and transmits a 26 bit PCMCIA address, a 16 bit PCMCIA data, and a PCMCIA control signal from the PCMCIA access unit 205. Upon reception, prioritize wireless channels shared by various wireless terminal devices according to the characteristics of a service, and then a medium access control function for allocating wireless channels to each wireless terminal, and detection of transmission errors on wireless channels. Forward Error Correction (FEC) for recovery, the ability to convert media access control data into OFDM symbols, Binary Phase Shift Keying (BPSK) for OFDM symbols to data rates of 6 to 54 Mbps, Quadrature Phase Shift Keying (QPSK), the ability to modulate with 16QAM and 64QAM to separate the transmit I and transmit Q signals, transmit I signal and transmit Q Modulating a call to a wireless RF signal of 5 GHz frequency band and performs a function to transmit.

RF demodulation function for receiving and converting wireless RF signals in the 5 GHz frequency band into received I and received Q signals, and BPSK, QPSK, and 16QAM to match received I and received Q signals to data rates of 6 to 54 Mbps. And a function of demodulating to 64QAM to convert an OFDM symbol, converting an OFDM symbol into media access control data, converting media access control data into PCMCIA data in units of 16 bits, and delivering the result to the PCMCIA access unit 205. do.

FIG. 3 is a block diagram showing the configuration of the system control unit shown in FIG. 2.

The RS232 transceiver 301 receives the RS232 received data of the RS232 level from the RS232 connector 201, converts the received RS232 level data into serial received data of the TTL level, and transmits the received RS232 data to the CPU 302, and transmits the TTL from the CPU 302. It receives the serial transmission data of the level, converts into RS232 transmission data of the RS232 level, and transmits the RS232 connection unit 201.

The CPU 302 performs the program execution function, the calculation function, the memory control function, and the serial data transmission / reception function to control the double speed Fast Ethernet transceiver 203, the PCMCIA connection 205, and the RS232 transceiver 301. It performs Mobile IP function and performs Mobile IP function that automatically switches the current call channel when moving from sector to cell or moving from cell to cell.

In addition, a function of receiving a program from the Flash ROM 303 by using a Flash ROM control signal and 16-bit CPU data, and storing the program into the Flash ROM 303, wherein the dual-speed Fast Ethernet transceiver Receives the 4-bit MII received data received from 203 and stores the synchronous DRAM control signal and the 32-bit CPU data into the synchronous DRAM 304 and the 32-bit CPU from the synchronous DRAM 304. Reads data and transmits 26-bit CPU address, address latch signal, 16-bit CPU data, 2-bit PCMCIA card valid signal, CPU control signal, and PCMCIA card output valid signal to the PCMCIA connection unit 205. Do this.

In addition, the CPU data of the 16-bit unit is received from the PCMCIA connection unit 205 to store the CPU data of the wireless terminal devices in the synchronous DRAM 304, and the 32-bit CPU data is read from the synchronous DRAM 304. It converts the MII transmission data in bits and transmits the data to the double speed Fast Ethernet transceiver 203.

In addition, the user profile information of the wireless terminal devices is received from the nonvolatile SRAM 305 using the nonvolatile SRAM control signal and 8-bit CPU data, and the user profile information is stored in the nonvolatile SRAM 305. Store to the RAM 305.

The flash ROM 303 stores a program.

The synchronous DRAM 304 performs a function of storing multimedia data or CPU data of wireless terminal devices so that the CPU 302 can execute a program.

The nonvolatile SRAM 305 performs a function of storing user profile information of wireless terminal devices.

The clock generator 306 generates a system clock and transmits it to the CPU 302.

The system reset unit 307 generates and transmits a power start reset signal, a hardware reset signal, and a software reset signal to the CPU 302.

FIG. 4 is a block diagram showing the configuration of the PCMCIA connection unit shown in FIG. 2.

The address latch unit 401 receives a 26-bit CPU address and an address latch signal from the system control unit 204, and when the address latch signal is validated, converts the 26-bit CPU address into a 26-bit PCMCIA address. It converts and transfers the data to the wireless access processing unit 206.

The data buffer unit 402 receives the 16-bit CPU data and the 2-bit PCMCIA card valid signal from the system control unit 204, and when it is validated with one of the 2-bit PCMCIA card valid signals, the 16-bit It converts the CPU data of the unit into PCMCIA data of the 16-bit unit and delivers it to the system control unit 204.

The control signal buffer unit 403 receives the CPU control signal and the PCMCIA card output valid signal from the system control unit 204, and converts the CPU control signal into a PCMCIA control signal when the PCMCIA card output valid signal is enabled. It performs a function of transferring to the access processing unit 206.

The status signal buffer unit 404 receives the PCMCIA status signal from the wireless access processing unit 206, and when the PCMCIA card valid signals of 2-bit units are all validated from the system control unit 204, the wireless access processing unit 206 And converts the PCMCIA status signal from the CPU into a CPU status signal and transmits it to the system controller 204.

FIG. 5 is a block diagram illustrating a configuration of the wireless access processor shown in FIG. 2.

The MAC processing unit 501 performs a function of transmitting a PCMCIA status signal to the PCMCIA access unit 205, and receives a PCMCIA address of 26 bits, PCMCIA data of 16 bits, and a PCMCIA control signal from the PCMCIA access unit 205. After determining the priority of the wireless channel shared by the various wireless terminal devices according to the characteristics of the service, and performs the MAC function to assign the wireless channel to each wireless terminal.

In addition, it converts into 16-bit MAC PDU (Protocol Data Unit) transmission data and transmits it to the radio physical layer processing unit 502, and receives the MAC PDU valid signal from the radio physical layer processing unit 502. If is enabled, the wireless physical layer processing unit 502 transmits the MAC PDU read signal and the MAC PDU reception clock, and receives the MAC PDU reception start signal synchronized with the signals and MAC PDU reception data in 16-bit units to access the medium. Performs a control processing function, and converts the data into 16-bit PCMCIA data and transmits the data to the PCMCIA connection unit 205.

The radio physical layer processing unit 502 receives the MAC PDU transmission start signal and the MAC PDU transmission data in 16-bit units from the MAC processing unit 501 to detect and recover transmission errors on a radio channel, and media access control data. To OFDM symbol, modulates OFDM symbol into BPSK, QPSK, 16QAM and 64QAM to fit data rate of 6 ~ 54 Mbps, and separates transmission I signal and transmission Q signal into RF signal. Performs a function of transmitting to the demodulation demodulator 503.

In addition, the received I signal and the received Q signal are received from the RF demodulation unit 503, and the received I signal and the received Q signal are demodulated to BPSK, QPSK, 16QAM, and 64QAM to fit a data rate of 6 to 54 Mbps. And a function of converting an OFDM symbol into media access control data and delivering MAC PDU received data in units of 16 bits to the MAC processing unit 501.

The RF modulation and demodulation unit 503 receives a transmission I signal and a transmission Q signal from the radio physical layer processing unit 502 and modulates the RF signal into a wireless RF signal of a 5 GHz frequency band and transmits the same to a wireless terminal device. It performs RF demodulation by receiving wireless RF signals in a 5 GHz frequency band from terminal devices, and transmits a received I signal and a received Q signal to the radio physical layer processing unit 502.

FIG. 6 is a flowchart illustrating a Mobile IP operation of the CPU illustrated in FIG. 3.

When the wireless terminal device 601 moves between sectors in a cell or moves from one cell to another cell, the data packet is sent to the counterpart wireless terminal device 604 via the new access point 602 as follows. Perform control message flow.

First, the wireless terminal device 601 transmits a request message for connection to the new access point 602, and the new access point 602 transmits a notification message to the wireless terminal device 601.

Subsequently, the wireless terminal device 601 transmits a registration request message to the new access point 602, and the new access point 602 transmits a registration request message to the original access point 603.

The original access point 603 transmits a registration response message to the new access point 602, and the new access point 602 transmits a data packet to the counterpart wireless terminal device 604. The counterpart wireless terminal device 604 transmits a data packet to the new access point 602, and the new access point 602 forwards the data packet to the wireless terminal device 601.

The present invention as described above is recorded on a computer-readable recording medium, and can be processed by a computer.

As described in detail above, the present invention provides wireless fixed terminal devices or wireless mobile terminal devices with a data transmission rate of 6 to 54 Mbps wirelessly in a 5 GHz frequency band compliant with the IEEE 802.11a standard through a wireless connection unit. By connecting to an Ethernet network through a high-speed LAN wired connection of 3 10BASE-T or 100BASE-TX, not only narrowband service data of 2 Mbps or less, but also broadband multimedia service data of 2 Mbps or more can be transmitted, When moving or moving from one cell to another, there is an effect that can support the mobile IP function to automatically switch the current call channel.

The technical spirit of the present invention has been described above with reference to the accompanying drawings, but this is by way of example only and not by way of limitation to the present invention. In addition, it is obvious that any person skilled in the art may make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (19)

An Ethernet connector, a dual speed Fast Ethernet transceiver, a system controller, a PCMCIA connection, and a wireless access processor; The Ethernet connection unit receives an Ethernet reception signal and converts it into differential reception data and transmits the differential transmission data to the dual speed fast Ethernet transceiver. To, The dual-speed high-speed Ethernet transceiver receives differential received data from the Ethernet connection unit, converts it into MII (Media Independent Interface) received data, and transmits the received data to the system controller, and receives MII transmission data from the system controller. Converts it into differential received data and sends it to the Ethernet connection; The system control unit receives MII received data from the double speed Fast Ethernet transceiver and converts the data into CPU data in the form of wireless data and transmits the data to the PCMCIA access unit, and transmits MII by receiving CPU data in the form of wireless data from the PCMCIA access unit. Converts the data to the dual speed Fast Ethernet transceiver; The PCMCIA access unit receives the CPU data from the system control unit and converts the data into PCMCIA data and transmits the data to the wireless access processing unit. The PCMCIA connection unit receives the PCMCIA data from the wireless access processing unit and converts the data into CPU data. The wireless access processor receives PCMCIA data from the PCMCIA access unit, determines a priority of a wireless channel shared by various wireless terminal devices according to characteristics of a service, and then allocates and transmits a wireless channel to each wireless terminal. And receiving data from a terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority. The method of claim 1, Receiving an RS232 received signal from the operator terminal to pass to the system control unit, and receives the RS232 transmission data from the system control unit further comprises an RS232 connection for performing a function for transmitting to the operator terminal of the wireless LAN Access Point Device. The method according to claim 1 or 2, The Ethernet connection portion, Receives an Ethernet received signal, performs a signal connection function, a signal conversion function, and an impedance matching function to convert it into differential received data, and then transmits the data to the double speed Fast Ethernet transceiver, and the double speed Fast Ethernet transceiver And a means for converting into an Ethernet transmission signal by performing differential signal connection, signal conversion, and impedance matching functions from the differential transmission data, and transmitting the data to the Ethernet network. . The method of claim 1, The dual speed fast Ethernet transceiver, In case of receiving 10BASE-T differential received data from the Ethernet connection unit, a Manchester decryption function and a serial parallel conversion function are performed, and in the case of receiving 100BASE-TX differential received data, the MLT-3 decryption function is reversed. Means for performing a descramble function, a 4B / 5B decoding function, and a serial parallel conversion function; MII transmission data is received from the system control unit to perform parallel serial conversion function and Manchester encoding function when configuring a link for 10BASE-T, and parallel serial conversion function and 4B / 5B encoding when configuring a link for 100BASE-TX. And a means for performing a function, a scrambling function, and an MLT-3 encoding function. The method according to claim 1 or 4, The dual speed fast Ethernet transceiver, When the MII reception valid signal, the MII reception clock, and the MII reception data are transmitted to the system control unit, when the invalid symbol is received, the MII reception error signal is enabled, and when transmission and reception occur simultaneously, Means for validating an MII collision signal and performing a function of validating an MII carrier received signal when a carrier is received; Receiving an MII transmission error signal from the system control unit to generate an invalid symbol, receiving MII management data synchronized with an MII management data clock to change an operation mode, and converting MII management data for its own operation state into MII management data. And a means for transmitting to the system controller in synchronization with a clock. The method according to claim 1 or 2, The system control unit, Control means for performing a program execution function, an arithmetic function, a memory control function, and a serial data transmission / reception function to control the double speed Fast Ethernet transceiver and PCMCIA connection; And a mobile IP means for automatically switching a current call channel when the wireless terminal device moves between sectors in a cell or moves from one cell to another cell. LAN access point device. The method of claim 6, The system control unit, And a signal transmitting means for transmitting a CPU address, an address latch signal, a CPU control signal, and a CPU status signal to the PCMCIA connection unit. The method of claim 1, The PCMCIA connection portion, Address latch means for converting a CPU address into a PCMCIA address and transmitting the same to the wireless access processor; A data buffer means for receiving CPU data, converting the data into PCMCIA data, and transmitting the received PCMCIA data to the wireless access processing unit; Control signal buffer means for receiving a CPU control signal from the system control unit, converting the control signal into a PCMCIA control signal, and transmitting the converted control signal to the wireless access processing unit; And a status signal buffer means for receiving a PCMCIA status signal from the wireless access destination processing unit, converting the PCMCIA status signal into a CPU status signal, and transmitting the status signal buffer to the system controller. The method of claim 1, The wireless access processing unit, MAC processing means, radio physical layer processing means and RF modulation and demodulation means; The MAC processing unit receives PCMCIA data, determines a priority of a wireless channel shared by various wireless terminal devices according to characteristics of a service, and then assigns a wireless channel to each wireless terminal device to transmit MAC PDU (Protocol Data Unit) data. Converts the data into the PMCIA transmission means, receives the MAC PDU received data from the PHY processing means, performs MAC processing, converts the data into PCMCIA data, and transmits the data to the PCMCIA access unit; The wireless physical layer processing means receives the MAC PDU transmission data from the MAC processing means, an FEC function for detecting and recovering a transmission error on a wireless channel, a function for converting into an OFDM symbol, and a transmission I signal and transmission from the converted OFDM symbol. The signal is separated into a Q signal and transmitted to the RF demodulation means. The received I signal and the received Q signal are received from the RF modulation and demodulation means, converted into OFDM symbols, and the OFDM symbols are converted into MAC PDU data and transmitted to the MAC processor. and, The RF demodulation means receives a transmission I signal and a transmission Q signal from the radio physical layer processing means, modulates the signal into a radio RF signal, and transmits the received RF signal to the radio terminal devices, and receives a radio RF signal from the radio terminal devices. And converting the received I signal into the received Q signal and transmitting the received I signal to the wireless physical layer processing means. In the method of operating an access point device of a wireless LAN comprising an Ethernet connection unit, a dual-speed high-speed Ethernet transceiver, a system control unit, a PCMCIA connection unit and a wireless access processing unit, A first step of receiving an Ethernet received signal and converting it into differential received data and transmitting the same to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; And a fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the service characteristics of the wireless channel shared by the various wireless terminal devices, and then assigning and transmitting the wireless channel to each wireless terminal. Method of operating an access point device of a wireless LAN, characterized in that. The method of claim 10, And receiving the RS232 received signal from an operator terminal and transmitting the received RS232 signal to the system control unit. The method of claim 10 or 11, The third step, A first sub-step of performing a program execution function, an arithmetic function, a memory control function, and a serial data transmission / reception function to control the double speed Fast Ethernet transceiver and PCMCIA connection; And a second sub-step of automatically switching the current call channel when the wireless terminal device moves between sectors in a cell or moves from one cell to another cell. Operation method of LAN access point device. In the method of operating an access point device of a wireless LAN comprising an Ethernet connection unit, a dual-speed high-speed Ethernet transceiver, a system control unit, a PCMCIA connection unit and a wireless access processing unit, A first step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority; A second step of converting the PCMCIA data transmitted in the first step into CPU data and transmitting the same to the system controller; A third step of converting CPU data in the form of wireless data transmitted in the second step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A fourth step of converting the MII transmission data transmitted in the third step into differential reception data and transmitting the difference to the Ethernet connection unit; And a fifth step of converting the differential transmission data transmitted in the fourth step into an Ethernet transmission signal and transmitting the same to the Ethernet network. The method of claim 13, And receiving the RS232 transmission data from the system control unit and transmitting the RS232 transmission data to an operator terminal. The method according to claim 13 or 14, The third step, A first sub-step of performing a program execution function, an arithmetic function, a memory control function, and a serial data transmission / reception function to control the double speed Fast Ethernet transceiver and PCMCIA connection; And a second sub-step of automatically switching the current call channel when the wireless terminal device moves between sectors in a cell or moves from one cell to another cell. Operation method of LAN access point device. In the method of operating an access point device of a wireless LAN comprising an Ethernet connection unit, a dual-speed high-speed Ethernet transceiver, a system control unit, a PCMCIA connection unit and a wireless access processing unit, A first step of receiving an Ethernet received signal and converting it into differential received data and transmitting the same to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; A fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the characteristics of the service, the radio channel shared by the various wireless terminal devices, and then assigning and transmitting the wireless channel to each wireless terminal; A sixth step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority; A seventh step of converting the PCMCIA data transmitted in the sixth step into CPU data and transmitting the same to the system controller; An eighth step of converting CPU data in the form of wireless data transmitted in the seventh step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A ninth step of converting the MII transmission data transmitted in the eighth step into differential reception data and transmitting the difference to the Ethernet connection unit; And a tenth step of converting the differential transmission data transmitted in the ninth step into an Ethernet transmission signal and transmitting the same to the Ethernet network. A computer-readable recording medium having recorded thereon a program capable of executing a method for operating an access point device of a wireless LAN including an Ethernet connection unit, a dual speed high speed Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit. A first step of receiving an Ethernet received signal and converting it into differential received data and transmitting the same to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; And a fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the characteristics of the service, and then assigning the wireless channel to each wireless terminal. A computer-readable recording medium that records a program that can be loaded. A computer-readable recording medium having recorded thereon a program capable of executing a method for operating an access point device of a wireless LAN including an Ethernet connection unit, a dual speed high speed Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit. A first step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority; A second step of converting the PCMCIA data transmitted in the first step into CPU data and transmitting the same to the system controller; A third step of converting CPU data in the form of wireless data transmitted in the second step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A fourth step of converting the MII transmission data transmitted in the third step into differential reception data and transmitting the difference to the Ethernet connection unit; And a fifth step of converting the differential transmission data transmitted in said fourth step into an Ethernet transmission signal and transmitting it to an Ethernet network. A computer-readable recording medium having recorded thereon a program capable of executing a method for operating an access point device of a wireless LAN including an Ethernet connection unit, a dual speed high speed Ethernet transceiver, a system control unit, a PCMCIA connection unit, and a wireless access processing unit. A first step of receiving an Ethernet received signal and converting it into differential received data and transmitting the same to the dual speed Fast Ethernet transceiver; Converting the differential received data transmitted in the first step into MII (Media Independent Interface) received data and transmitting the converted data to the system controller; A third step of converting the MII received data transmitted in the second step into CPU data in the form of wireless data and transmitting it to the PCMCIA access unit; A fourth step of converting the CPU data transmitted in the third step into PCMCIA data and transmitting the same to the wireless access processor; A fifth step of determining the priority of the PCMCIA data transmitted in the fourth step according to the characteristics of the service, the radio channel shared by the various wireless terminal devices, and then assigning and transmitting the wireless channel to each wireless terminal; A sixth step of receiving data from a wireless terminal, converting the data into PCMCIA data, and transmitting the data to the PCMCIA access unit according to priority; A seventh step of converting the PCMCIA data transmitted in the sixth step into CPU data and transmitting the same to the system controller; An eighth step of converting CPU data in the form of wireless data transmitted in the seventh step into MII transmission data and transmitting the MII transmission data to the double speed Fast Ethernet transceiver; A ninth step of converting the MII transmission data transmitted in the eighth step into differential reception data and transmitting the difference to the Ethernet connection unit; And a tenth step of converting the differential transmission data transmitted in the ninth step into an Ethernet transmission signal and transmitting the same to the Ethernet network.