KR100780662B1 - Card Terminals with Function of Virtual Wireless Lan Access Point by Using Wire Communication Network - Google Patents

Abstract

The present invention relates to a card terminal having a virtual wireless LAN access point function using a wired communication network and a recording medium therefor. The card terminal according to the present invention includes a wireless LAN communication unit for connecting wireless LAN communication and at least one wired communication network. And a communication processor for accessing the mobile station, processing a predetermined electronic payment through the communication processor, and transmitting a predetermined packet from a terminal connected through the WLAN communication unit to correspond to the WLAN communication unit. When received, the received packet information is read to confirm whether to bridge the packet to the protocol stack corresponding to the communication processor, and when the packet is bridged to the protocol stack corresponding to the communication processor, the packet is processed. Whether the packet is for a wireless LAN connection The ridge check unit and the check result, if the packet is a packet for payment processing, the packet is transmitted to the payment processing server provided on the wired communication network (and / or the communication network in conjunction with the wired communication network) through the communication processing unit. A predetermined packet provided on the wired communication network (and / or a communication network interworking with the wired communication network) through the communication processor, the packet corresponding to at least one wireless LAN communication standard, if converted into a packet structure and the packet is a wireless LAN connection; And a bridge function unit for converting the packet into a packet structure transmitted to a server (and / or terminal) of the server, and a bridge function unit for bridging the converted packet to a protocol stack corresponding to the communication processor.

Wired Network, Virtual, Wireless LAN Access Point, Card Terminal

Description

Card Terminals with Function of Virtual Wireless Lan Access Point by Using Wire Communication Network}

1 is a diagram illustrating a network connection configuration of a card terminal performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to an embodiment of the present invention.

2 is a diagram illustrating a preferred functional configuration of a card terminal performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to an embodiment of the present invention.

3A, 3B, 3C, and 3D illustrate a logical bridge function hierarchical structure for providing a bridge function of a communication protocol stack according to an exemplary embodiment of the present invention.

4A and 4B are diagrams illustrating a protocol stack structure in which a card terminal having a bridge function of a communication protocol stack according to an embodiment of the present invention bridges a WLAN terminal to a wired communication network.

5 is a diagram illustrating a process of loading a logical bridge function layer that provides a bridge function of a communication protocol stack in a card terminal according to an embodiment of the present invention.

6A and 6B are diagrams illustrating a card terminal operation process of providing a bridge function for a packet transmitted / received through a wireless LAN communication channel connected to a card terminal through a logical bridge function layer according to an embodiment of the present invention.

7 is a diagram illustrating a card terminal operation process of providing a bridge function for a packet generated at a card terminal through a logical bridge function layer according to an embodiment of the present invention.

8 is a diagram illustrating a network connection configuration of a card terminal performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention.

FIG. 9 is a diagram illustrating a preferred functional configuration of a card terminal performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention.

10A, 10B, 10C, and 10D illustrate a logical bridge function hierarchical structure for providing a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention.

11A and 11B illustrate a protocol stack structure in which a card terminal having a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention bridges a wireless LAN terminal to a wired communication network.

12 is a diagram illustrating a process of loading a logical bridge function layer for providing a bridge function of a communication protocol stack to a card terminal according to another embodiment of the present invention.

13A and 13B illustrate a card terminal operation process of providing a bridge function for a packet transmitted / received through a wireless LAN communication channel connected to a card terminal through a logical bridge function layer according to another embodiment of the present invention.

14 is a diagram illustrating an operation of a card terminal providing a bridge function for a packet generated at a card terminal through a logical bridge function layer according to another embodiment of the present invention.

<Description of main parts of drawing>

100: wireless LAN terminal 105: card terminal

110: van server 115: payment server

205: control unit 210: screen output unit

215: sound processor 220: key input unit

225: security application module 230: power supply

235: card reader portion 240: print output portion

245: printing apparatus 250: IP-based communication processing unit

255: memory unit 260: wireless LAN communication unit

265: bridge function 270: protocol conversion unit

* 275: Bridge check unit 280: Address processing unit

The present invention is provided in the merchant for at least one electronic payment processing, wired communication means for connecting (and / or communication connection) to an IP-based wired communication network operating based on TCP / IP (and / or UDP / IP) And a card terminal including at least one wireless LAN communication means and bridging the wireless LAN communication means and a wired communication means on a communication protocol stack.

Due to the continuous development of information and communication technology, various forms of wired communication infrastructure and wireless communication infrastructure are being established, and thus, card terminals (e.g., Credit Authorization Terminal (CAT) provided in merchants to provide electronic payment services. Value Added Networks (VANs) used by)) were initially rented and used in public switched telephone networks (PSTNs) and recently used high-speed data networks (e.g., x Digital Subscriber Line (xDSL)). It has evolved into a form of use.

As the main network constituting the value-added communication network as described above increases, the card terminal provides a single communication multi-function (Single Communication and Multi Function) to provide various additional services in the initial Single Communication and Single Function (SCSF); SCMF).

However, the additional service function provided in the card terminal is related to the electronic payment, and there is a problem that the communication resources of the high speed communication network constituting the value added communication network are not properly utilized.

An object of the present invention is to provide a wireless LAN communication unit for connecting a wireless LAN communication, and a communication processing unit for connecting to at least one or more wired communication network, to process a predetermined electronic payment through the communication processing unit, and through the wireless LAN communication unit When a predetermined packet is transmitted from the connected terminal to the physical layer of the protocol stack corresponding to the wireless LAN communication unit, the received packet information is read to determine whether to bridge the packet to the protocol stack corresponding to the communication processing unit. And when the packet is bridged to a protocol stack corresponding to the communication processing unit, a bridge checking unit for confirming whether the packet is a packet for payment processing or a wireless LAN connection, and the result of the check indicates that the packet is payment processing. If the packet for the packet, the packet through the communication processing unit and the wired communication network (and / or Converts to a packet structure transmitted to a payment processing server provided on the wired communication network) and, if the packet is a wireless LAN connection, transmits a packet corresponding to at least one wireless LAN communication standard through the communication processing unit. A protocol conversion unit for converting a packet structure transmitted to a predetermined server (and / or terminal) provided on a wired communication network (and / or a communication network interworking with the wired communication network) and the converted packet to correspond to the communication processing unit. A card terminal having a virtual wireless LAN access point function using a wired communication network having a bridge function that bridges a protocol stack is provided.

A card terminal having a virtual wireless LAN access point function using a wired communication network according to the present invention includes a wireless LAN communication unit for connecting wireless LAN communication and a communication processing unit for connecting to at least one wired communication network, and through the communication processing unit. When a predetermined packet is transmitted from a terminal connected through the wireless LAN communication unit and received in a physical layer of a protocol stack corresponding to the wireless communication unit, the received packet information is read. Check whether the packet is bridged to the protocol stack corresponding to the communication processing unit, and if the packet is bridged to the protocol stack corresponding to the communication processing unit, whether the packet is a packet for payment processing or a packet for wireless LAN connection. A bridge checking unit; If the packet is a packet for payment processing, the packet is converted into a packet structure transmitted to a payment processing server provided on the wired communication network (and / or a communication network interworking with the wired communication network) through a communication processing unit. A predetermined server (and / or a packet corresponding to at least one WLAN communication standard) provided on the wired communication network (and / or a communication network interworking with the wired communication network) through the communication processor. Or a protocol conversion unit for converting the packet structure transmitted to the terminal); And a bridge function unit for bridging the converted packet to a protocol stack corresponding to the communication processor.

According to the invention, the communication processing unit, characterized in that for transmitting the bridged packet to the wired communication network.

On the other hand, the card terminal having a virtual wireless LAN access point function using a wired communication network according to the present invention includes a wireless LAN communication unit for connecting the wireless LAN communication, and a communication processing unit for connecting to at least one wired communication network, the communication processing unit When a predetermined packet is received from the wired communication network to the physical layer of the protocol stack corresponding to the communication processing unit through the communication processing unit, the predetermined packet is read and the packet is read. A bridge checking unit for checking whether to bridge the protocol stack corresponding to the WLAN communication unit; As a result of confirming the bridge checking unit, when the packet is bridged to a protocol stack corresponding to the WLAN communication unit, a protocol for converting a packet received by the protocol stack corresponding to the communication processing unit into a packet structure corresponding to the WLAN standard A conversion unit; And a bridge function unit for bridging the converted packet to a protocol stack corresponding to the WLAN communication unit.

Here, the WLAN communication unit is characterized in that for transmitting the bridged packet to the terminal connected via the WLAN communication unit.

According to the present invention, if the packet is a packet for payment processing, the protocol conversion unit may transmit the packet to SSL (Secure Sockets Layer) and / or TLS (Transport Layer Security) and / or AAA (Authentication, Authorization and Accounting). As described above, the method further comprises encrypting with a security protocol corresponding to the wired communication network.

Further, according to the present invention, when the packet received by the physical layer of the protocol stack corresponding to the wireless LAN communication unit flows into the data link layer (and / or medium access control layer), the bridge function unit is the packet; Bridge the data link layer (and / or medium access control layer) of the protocol stack corresponding to the communication processor, and / or the data link layer of the protocol stack corresponding to the WLAN communication unit on the protocol stack corresponding to the communication processor ( And / or bridged to a protocol layer compatible with a medium access control layer, and when a packet received in a physical layer of a protocol stack corresponding to the WLAN communication unit flows into a network layer, the packet is transmitted to the communication layer. Bridge to the network layer of the protocol stack corresponding to the processing unit, and / Is bridged to a protocol layer compatible with a network layer of a protocol stack corresponding to the WLAN communication unit on a protocol stack corresponding to the communication processor, and received by a physical layer of a protocol stack corresponding to the WLAN communication unit. When a packet flows into the transport layer, bridge the packet to a transport layer of a protocol stack corresponding to the communication processor, and / or transmit a protocol stack corresponding to the WLAN communication unit on a protocol stack corresponding to the communication processor. And a packet received in the physical layer of the protocol stack corresponding to the wireless LAN communication unit when the packet is introduced into the session layer. Session layer And a protocol stack corresponding to the session layer of the protocol stack corresponding to the WLAN communication unit on a protocol stack corresponding to the communication processor, and / or a protocol stack corresponding to the WLAN communication unit. When a packet received at the physical layer of the packet flows into the presentation layer, bridge the packet to the presentation layer of the protocol stack corresponding to the communication processor, and / or the wireless LAN on the protocol stack corresponding to the communication processor Bridge to a protocol layer compatible with the presentation layer of the protocol stack corresponding to the communication unit.

According to the present invention, when the packet received in the physical layer of the protocol stack corresponding to the communication processing unit flows into the data link layer (and / or medium access control layer), the bridge function unit, the packet is the wireless LAN Bridge to the data link layer (and / or medium access control layer) of the protocol stack corresponding to the communication unit, and / or on the protocol stack corresponding to the WLAN communication unit, and the data link layer of the protocol stack corresponding to the communication processing unit (and And / or bridge to a protocol layer that is compatible with a medium access control layer. When a packet received in a physical layer of a protocol stack corresponding to the communication processor flows into a network layer, the packet is transmitted to the WLAN communication unit. Bridge to the network layer of the protocol stack corresponding to The protocol stack corresponding to the wireless LAN communication unit is bridged to a protocol layer compatible with the network layer of the protocol stack corresponding to the communication processing unit, and the packet received to the physical layer of the protocol stack corresponding to the communication processing unit When flowing into the transport layer, the packet is bridged to a transport layer of a protocol stack corresponding to the WLAN communication unit, and / or a transport layer of a protocol stack corresponding to the communication processing unit on a protocol stack corresponding to the existing WLAN communication unit. And a packet received in a physical layer of a protocol stack corresponding to the communication processor, when the packet is introduced into a session layer, and transferring the packet to a protocol layer corresponding to the WLAN communication unit. Layered robes Ridge bridge and / or bridge a protocol stack corresponding to the wireless LAN communication unit to a protocol layer compatible with the session layer of the protocol stack corresponding to the communication processing unit. When the packet received in the layer flows into the presentation layer, bridge the packet to the presentation layer of the protocol stack corresponding to the WLAN communication unit, and / or on the communication stack corresponding to the WLAN communication unit. Bridge to a protocol layer compatible with the presentation layer of the protocol stack corresponding to the.

On the other hand, the present invention includes a computer-readable recording medium, characterized in that for recording a program for executing the function of the card terminal device component having a virtual wireless LAN access point function using the wired communication network described above.

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users or operators. Therefore, the definition should be based on the contents throughout the present title.

In addition, preferred embodiments of the present invention to be carried out below are provided in each system functional configuration in order to efficiently describe the technical components constituting the present invention, or a system commonly provided in the technical field to which the present invention belongs. The functional configuration is omitted as much as possible, and will be mainly described for the functional configuration to be additionally provided for the present invention. If those skilled in the art to which the present invention pertains, it will be able to easily understand the function of the components that are conventionally used among the omitted functional configuration not shown below, and also the configuration omitted as described above The relationship between the elements and the components added for the present invention will also be clearly understood.

In addition, the following examples will be used to appropriately modify the terms so that those skilled in the art to clearly understand the technical features of the present invention to effectively understand, but the present invention It is by no means limited.

As a result, the technical spirit of the present invention is determined by the claims, and the following examples are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It is only.

1 is a diagram illustrating a network connection configuration of a card terminal performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to an exemplary embodiment of the present invention.

In more detail, in FIG. 1, a card terminal 105 having a bridge function of a communication protocol stack connects to (and / or communicates with) a payment communication network including at least one wired communication network, and the communication protocol stack For the network connection configuration of the card terminal 105 performing a virtual WLAN AP function by bridging the card terminal 105 and at least one WLAN terminal 100 in a short distance to the wired communication network through a bridge function of. As those skilled in the art to which the present invention pertains, a card terminal 105 having a bridge function of a communication protocol stack may be connected to at least one wired communication network by referring to and / or modifying the present invention. At least one WLAN terminal 100 located in the near field with the card terminal 105 in the state of the bridge device of the communication protocol stack Various implementation methods for bridging to a wired communication network may be inferred, but the present invention includes all the implementation methods inferred above and is not limited to the implementation method shown in FIG.

According to the present invention, the card terminal 105 is connected to a predetermined ESD (Electronic Software Delivery) server through a currently connected predetermined communication network in order to have a bridge function of the communication protocol stack according to the present invention. And downloading a predetermined program file corresponding to the bridge function of the communication protocol stack from the ESD server and loading the program file into the card terminal 105 to thereby bridge the communication protocol stack of the communication protocol stack according to the present invention. Is provided.

According to an embodiment of the present invention, the server connected to the card terminal 105 before the card terminal 105 has the bridge function of the communication protocol stack is connected to the card terminal 105 according to the present invention. It is preferable to include an ESD server which provides and mounts a predetermined program file corresponding to the bridge function of the protocol stack.

The wired communication network to which the card terminal 105 having a bridge function of the communication protocol stack is connected operates based on Transmission Control Protocol / Internet Protocol (TCP / IP) and / or User Datagram Protocol / Internet Protocol (UDP / IP). It is characterized in that it comprises an IP-based wired communication network, whereby the card terminal 105 is a payment approval request full text and / or payment approval full text is transmitted and received through the payment communication network including the wired communication network is the TCP / IP It is desirable to send and receive via (and / or UDP / IP) based communication protocol.

However, the wired communication network to which the card terminal 105 with a bridge function of the communication protocol stack according to the present invention is connected is not limited to the above-described TCP / IP (and / or UDP / IP) based wired communication network. Those skilled in the art to which the present invention pertains, the wired communication network to which the card terminal 105 with the bridge function of the communication protocol stack is connected includes all wired communication networks conventionally and commercially available in the future.

That is, Figure 1 is intended to effectively explain the technical features of the card terminal 105 having a bridge function of the communication protocol stack according to the present invention to those skilled in the art to which the present invention belongs, It is not limited by this.

According to the present invention, a card terminal 105 having a bridge function of the communication protocol stack is connected to at least one or more wired communication networks and / or predetermined communication with at least one or more servers (and / or terminals) via the wired communication network. And a wired communication means including at least one wired communication means for connecting a channel, and at least one wireless LAN terminal 100 and at least one wireless device in a short range with the card terminal 105. Characterized in that it comprises a function to communicate via the LAN communication means.

According to an embodiment of the present invention, the wired communication means for connecting (and / or communicating) the card terminal 105 to a wired communication network connects the card terminal 105 to TCP / IP (and / or USP / IP). It is preferable to include an Internet communication module for connecting to (and / or communication connection) based wired communication network, whereby the card terminal 105 is at least one server (and / or terminal) provided on the wired communication network And a predetermined communication channel are connected.

According to the present invention, a server (and / or terminal) on the wired communication network to which the card terminal 105 and a predetermined communication channel are connected is provided to a value added network (VAN) company corresponding to the card terminal 105. It is characterized in that it comprises a predetermined van server 110 provided, whereby the card terminal 105 performs an electronic payment procedure using at least one customer-owned card.

According to an embodiment of the present invention, the WLAN communication means for connecting the card terminal 105 and at least one WLAN terminal 100 in a short distance to a WLAN communication standard may conform to an IEEE 802.11x standard (or Compatible) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, HIPERLAN / 2, etc.) Wireless Local Area Network (WLAN), Bluetooth, WiFi, Ultra Wide Band system At least one WLAN communication means such as) is preferably made, such that a predetermined WLAN communication channel corresponding to the WLAN communication means between the WLAN terminal 100 and the card terminal 105 Connected.

According to the present invention, a communication channel connected between the card terminal 105 and a server (and / or terminal) provided on a wired communication network connects the card terminal 105 to the wired communication network (and / or a communication connection). It is characterized in that the connection and operation through a communication protocol corresponding to the wired communication means, and also the wireless LAN communication channel connecting the card terminal 105 and at least one WLAN terminal 100 located in the near field It is characterized in that the connection and operation via a communication protocol corresponding to the wireless LAN communication means.

The communication protocol includes a format and procedure necessary for at least two communication systems (e.g., a server and / or a device having a communication function) to transmit and receive predetermined information (or data) through a predetermined communication network and / or communication means; As the order is defined, the communication protocol is composed of a plurality of layers (Layer) for performing each function, such as physical circuit control, data connection control, packet relay transmission or file transfer control, In the communication protocol of each layer is made up of a structure that interlocks up and down.

Here, detailed technical features and functions for each layer of the communication protocol are defined in each communication protocol standard, and the present invention does not violate the communication protocol standard.

According to an embodiment of the present invention, the communication protocol configures and maintains a physical link between communication systems through a predetermined communication network and / or communication means, and directly transmits data bits through a communication line corresponding to the physical link. A physical layer that defines the mechanical, electrical, functional, and procedural characteristics for establishing and / or maintaining and / or breaking a line connection for transmission, and a medium for controlling access to the physical layer. Access Control) layer, preferably the MAC layer controls the physical layer to address the physical link (Addressing), network topology, circuit usage rules, error detection, frame forwarding and Subl of the Datalink Layer, which defines functions for data transfer reliability such as flow control ayer).

According to the present invention, the card terminal 105 having a bridge function of the communication protocol stack is configured to perform at least one wireless LAN communication means and the wired communication means on a protocol stack through the bridge function of the communication protocol stack according to the present invention. It is characterized by the bridge.

According to a preferred embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. At least one protocol layer of at least one of a physical layer on the protocol stack and an upper layer of the MAC layer, and at least one protocol layer of a physical layer on the protocol stack corresponding to the WLAN communication means and an upper layer of the MAC layer. It is preferable to bridge.

According to another exemplary embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. It is possible to directly bridge (eg, bridge in the form of firmware) the MAC layer above the physical layer on the protocol stack and the MAC layer above the physical layer on the protocol stack corresponding to the WLAN communication means. The invention is not limited.

According to a preferred embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. It is preferable to bridge at least one protocol layer of the same grade among at least one protocol layer existing on the protocol stack and at least one protocol layer existing on the protocol stack corresponding to the WLAN communication means.

For example, the communication protocol stack corresponding to the wired communication means provided in the card terminal 105 satisfies Open Systems Interconnection (OSI) layer 7, and the communication protocol stack corresponding to the WLAN communication means is also OSI 7 If the layer is satisfied, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is a communication protocol corresponding to the wired communication means. Bridge the network layer of the stack and the communication protocol corresponding to the wireless LAN communication means, and / or the communication layer corresponding to the transport layer of the communication protocol stack corresponding to the wired communication means and the wireless LAN communication means. Bridge the transport layer of the stack and / or correspond to the wired communication means Bridge the session layer of the new protocol stack and the communication layer of the communication protocol stack corresponding to the wireless LAN communication means, and / or the presentation layer of the communication protocol stack corresponding to the wired communication means and the wireless LAN communication means. It is desirable to bridge the presentation layer of the communication protocol stack.

According to another exemplary embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. It is preferable to bridge at least one protocol layer existing on the protocol stack and at least one protocol layer existing on the protocol stack corresponding to the WLAN communication means, the protocol layers compatible with each other on the protocol layer. .

According to a preferred embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is connected to the wireless LAN communication means. If a packet generated (and / or processed) on a corresponding protocol stack and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means are not compatible with each other, the bridge function may be used. Converting a packet generated (and / or processed) on a protocol stack corresponding to a LAN communication means into a packet structure processable (or compatible) on a protocol stack corresponding to the wired communication means, and / or to the wired communication means. A packet generated (and / or processed) on a corresponding protocol stack corresponds to the WLAN communication means. It is made by a function of converting a processed (or compatible) packet structure on the call stack, further comprising preferred.

According to an embodiment of the present invention, a packet generated (and / or processed) on a protocol stack corresponding to the WLAN communication means and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means In order to be compatible with each other, the bridge function (at least one WLAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is a protocol stack corresponding to the WLAN communication means. Read out the predetermined packet data by reading a packet encapsulating with a packet structure defined in the above, and encapsulate the read packet data into a packet structure defined in a protocol stack corresponding to the wired communication means, and / or A predetermined packet is read by reading a packet encapsulated in a packet structure defined in a protocol stack corresponding to the wired communication means. By reading kit data and encapsulating the read packet data into a packet structure defined in a protocol stack corresponding to the WLAN communication means, thereby generating (and / or processing) on a protocol stack corresponding to the WLAN communication means. It is desirable to make the packets compatible with the packets generated (and / or processed) on the protocol stack corresponding to the wired communication means.

If the read packet data sizes are not compatible with each other, a bridge function (at least one WLAN communication means and a wired communication means) of the communication protocol stack included in the card terminal 105 may be used. The read packet data in order to be compatible with a packet generated (and / or processed) on a protocol stack corresponding to the WLAN communication means and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means. It is preferable to further comprise a function of buffering (Buffering) to make the read packet data size compatible.

According to another exemplary embodiment of the present invention, a packet generated (and / or processed) on a protocol stack corresponding to the wireless LAN communication means and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means In order to be compatible with each other, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is a protocol corresponding to the wireless LAN communication means. Add (or insert) packet information that can be transmitted to a wired communication network through a wired communication means provided in the card terminal 105 to a packet generated (and / or processed) in a packet structure defined in a stack, and / Or among packet information included in a packet generated (and / or processed) in a packet structure defined in a protocol stack corresponding to the wired communication means. By removing (or erasing) packet information that is not compatible with the protocol stack corresponding to the wireless LAN communication means, the packets generated (and / or processed) on the protocol stack corresponding to the wireless LAN communication means and the wired communication means It is desirable to interoperate packets generated (and / or processed) on the corresponding protocol stack.

According to an embodiment of the present invention, when the card terminal 105 is connected to a wired communication network corresponding to a TCP / IP (and / or USP / IP) based wired communication network (and / or a communication connection), the card The terminal 105 connects the TCP / IP (and / or USP) with at least one WLAN terminal 100 connected with the card terminal 105 through a predetermined WLAN through a bridge function of a communication protocol stack according to the present invention. / IP) performs a virtual WLAN AP function (for example, the function of allowing the WLAN terminal 100 to recognize the WLAN AP) to access (and / or communication connection) based wired communication network.

According to an embodiment of the present invention, the card terminal 105 preferably comprises at least one affiliated terminal, such as a CAT (Credit Authorization Terminal) and / or a Point of Sales (POS) terminal, wherein the affiliated store The terminal is connected to and / or connected to a predetermined wired communication network through predetermined wired communication means (e.g., wired communication means for connecting the merchant terminal to a TCP / IP (and / or UDP / IP) based wired communication network). And a function of connecting a WLAN communication channel with at least one WLAN terminal 100 located at a short distance of the affiliated store terminal through at least one WLAN communication means, and a communication protocol stack according to the present invention. A function of bridging a wireless LAN terminal 100 to which a wireless LAN communication channel is connected to a wired communication network to which an affiliated store terminal is connected (and / or communicating) through a bridge function. It is formed by having preferred.

According to the exemplary embodiment of the present invention, the WLAN terminal 100 to which the card terminal 105 and a predetermined WLAN communication channel are connected includes a WLAN (WLAN) complying with (or compatible with) the IEEE 802.11x standard, A client terminal such as a personal computer (PC) and / or a laptop connected to a wireless LAN communication means provided in the card terminal 105 and a predetermined wireless LAN communication standard through a wireless LAN communication means such as Bluetooth, Wi-Fi, or UWB. It is preferable to comprise at least one or more.

In addition, the wireless LAN terminal 100 to which the card terminal 105 and a predetermined wireless LAN communication channel is connected may be connected to (WLAN), Bluetooth, Wi-Fi, UWB, etc. according to the IEEE 802.11x standard. A portable terminal such as a PDA (Personal Digital Assistant) and / or a Portable Media Player (PMP) connected to a wireless LAN communication means provided in the card terminal 105 and a predetermined wireless LAN communication standard through the same wireless LAN communication means. It is preferable to include at least one or more.

In addition, the wireless LAN terminal 100 to which the card terminal 105 and a predetermined wireless LAN communication channel is connected, the PCS (Personal Communication System), GSM (Global System for Mobile) terminal operating based on the CDMA stack, smart WLAN communication such as WLAN, Bluetooth, Wi-Fi, UWB, etc. conforming to (or compatible with) the IEEE 802.11x standard to a mobile communication terminal including at least one of a smart phone, a WCDMA terminal, an HSDPA terminal, and the like. It is preferable that the wireless LAN communication means provided in the card terminal 105 and at least one wireless terminal for connecting to a predetermined wireless LAN communication standard by means.

According to an embodiment of the present invention, the bridge function of the communication protocol stack according to the present invention in the card terminal 105 may include hardware device configuration and / or software in the development and / or manufacturing stage of the card terminal 105. It can be realized by mounting on the card terminal 105, including the functional configuration, by which the present invention is not limited.

According to another embodiment of the present invention, the bridge function of the communication protocol stack according to the present invention in the card terminal 105 is, after the card terminal 105 is developed and / or manufactured, the communication protocol according to the present invention The program including the bridge function of the stack can be realized by recording on a predetermined recording medium provided in the card terminal 105, whereby the present invention is not limited.

According to another embodiment of the present invention, in the card terminal 105, a part of the bridge function of the communication protocol stack according to the present invention is a hardware device configuration and the development and / or manufacturing stage of the card terminal 105 and And / or mounted via a software functional configuration, the rest of which is developed and / or manufactured by the card terminal 105, and then includes a program including a bridge function of a communication protocol stack according to the present invention. It can be realized by recording on a predetermined recording medium provided in the present invention, whereby the present invention is not limited.

For example, in order for the card terminal 105 to access a predetermined TCP / IP (and / or UDP / IP) based wired communication network, a predetermined network interface card (NIC) is required, and the NIC is a connector and a signal transmitting and receiving unit. And a signal processor, wherein the hardware device configuration includes at least one electrical / electronic device and a circuit corresponding to the connector, the signal transceiver, and the signal processor. And a program for controlling the operation of the signal transmission and reception unit and the signal processing unit, and processing the communication protocol defined in the wired communication network through the operation control.

In particular, the program (for example, a program that controls the operation of the connector, the signal transmission and reception unit, and the signal processing unit, and processes the communication protocol defined in the wired communication network through the operation control) is in the form of firmware. Recorded in memory (e.g., read only memory (ROM) and / or erasable programmable read only memory (EPROM) and / or electrically erasable and programmable read only memory (EEPROM, etc.) on the device configuration, and / or the card terminal ( 105) It is possible to write to the memory provided in the card terminal 105 in the form of a predetermined system program (and / or application program according to the intention of those skilled in the art) included in the operating system, thereby The present invention is not limited.

The card terminal 105 having a bridge function of the communication protocol stack is connected to a predetermined backbone network through a predetermined communication network including at least one wired communication network.

In addition, the card terminal 105 with a bridge function of the communication protocol stack is connected to a predetermined communication channel with the van server 110 provided in the bansa corresponding to the card terminal 105 through the backbone network. The card terminal 105 is thereby provided with a payment server provided to a card issuer that issued a card having at least one payment means to at least one or more customers through the van server 110 to which the communication channel is connected. By transmitting and receiving a payment approval request message and / or a payment approval message corresponding to the TCP / IP (and / or UDP / IP) based communication protocol, the electronic payment procedure using the customer-owned card is performed. .

Here, the TCP / IP (and / or UDP / IP) based wired communication network and the vanbone network and the van server 110 and / or the van server 110 and the card issuer side payment server 115 for connecting A series of network configurations including a dedicated communication network forms a payment communication network (eg, a value added communication network) for the card terminal 105 to perform a predetermined electronic payment procedure using the customer-owned card.

In addition, the card terminal 105 with a bridge function of the communication protocol stack is characterized in that a predetermined communication channel is connected to at least one server (and / or terminal) through the backbone network.

For example, the card terminal 105 having a bridge function of the communication protocol stack is connected to a web server and a client / server-based communication channel on the Internet through the backbone network, and / or to a terminal device on the Internet and a P2P ( Peer To Peer) based communication channels may be connected.

In addition, the card terminal 105 with a bridge function of the communication protocol stack is a network defined to provide a specific application service (eg, based on (or based on a backbone)) a predetermined application network connected to the backbone network. It is characterized in that a predetermined communication channel is connected to the server (and / or terminal) on the ().

For example, a card terminal 105 having a bridge function of the communication protocol stack may have a predetermined communication channel with a server (for example, a VoIP server) on an application network such as a predetermined VoIP (Voice over IP) network connected to the backbone network. And / or a communication channel with a call terminal for VoIP on the VoIP network.

In addition, the card terminal 105 with a bridge function of the communication protocol stack is a terminal device on a predetermined external network (for example, a network connected through an application network and a predetermined gateway) connected to a predetermined application network connected to the backbone network. And a predetermined communication channel are connected.

For example, a card terminal 105 having a bridge function of the communication protocol stack may be a server on a public switched telephone network (for example, an automatic response service (ARS) server) connected to a predetermined VoIP network connected to the backbone network. And a predetermined communication channel may be connected, and / or a communication terminal and a communication channel on the VoIP network may be connected.

2 is a diagram illustrating a preferred functional configuration of a card terminal 105 performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to an embodiment of the present invention.

More specifically, Figure 2 is connected to (and / or communication connection) to an IP-based wired network provided at the merchant for at least one or more electronic payment processing, operating based on TCP / IP (and / or UDP / IP) And a preferred functional configuration of a card terminal 105 including wired communication means and at least one wireless LAN communication means for bridging the wireless LAN communication means and wired communication means on a communication protocol stack. Those skilled in the art may refer to and / or modify this drawing to include at least one or more wired communication means and wireless LAN communication means, wherein the wired communication means and the wireless LAN communication means are provided in a communication protocol stack. While it would be possible to infer various functional configurations for the card terminal 105 bridged on the present invention, the present invention encompasses all the inferred implementation methods. And it shall not be limited to the exemplary method shown in the figure 2.

In FIG. 2 according to the preferred embodiment of the present invention, the wired communication means provided in the card terminal 105 having the bridge function of the communication protocol stack is based on W-CDMA and / or HSDPA operating based on the CDMA stack. Wireless communication means for accessing a mobile communication network, wireless communication means for accessing an IEEE 802.11x-based wireless LAN communication network, wireless communication means for accessing an IEEE 802.16x-based portable Internet, TCP / IP (and / or UDP / IP) Although shown as including at least one wired communication means of the wired communication means for connecting to an IP-based wired communication network operating based on, the card terminal 105 is a wired of any one of a wireless communication means and a wired communication means. Only communication means may be provided, whereby the present invention is not limited.

That is, the functional configuration of the card terminal 105 shown in FIG. 2 is only for efficiently describing the technical features of the card terminal 105 equipped with the bridge function of the communication protocol stack according to the present invention. The present invention is not limited to the illustrated embodiments, but rather can be inferred from various application methods of the present invention by those skilled in the art to which the present invention pertains.

Of course, it is apparent that the present invention includes all implementation methods inferred by referring to and / or modifying this drawing as described above.

Referring to FIG. 2, the card terminal 105 having a bridge function of the communication protocol stack includes a control unit 205 for controlling and operating the overall functions of the card terminal 105, and the card terminal 105. And a memory unit 255 for storing information (or data) necessary for controlling and operating the overall function, and / or recording a program necessary for controlling and operating the overall function of the card terminal 105. And a card reader unit 235 for reading predetermined payment means information from a customer-owned card equipped with at least one payment means for a predetermined electronic payment process, and a screen output function of the card terminal 105. A screen output unit 210, a sound processor 215 for a sound input / output function of the card terminal 105, and a key input unit 220 for a key input function of the card terminal 105. Characterized in that it is basically provided, in order to safer and more efficient electronic payment processing according to the intention of those skilled in the art is provided with a secure application module (225) (Secure Application Module (SAM), and / or the electronic payment processing It is preferable to further include a predetermined print output unit 240 for printing the receipt.

According to the present invention, the card terminal 105 having a bridge function of the communication protocol stack is provided with an IP-based communication processor 250 for processing the card terminal 105 to communicate with an IP-based wired communication network. It features.

According to the present invention, the card terminal 105 having a bridge function of the communication protocol stack is connected to the wireless LAN terminal 100 having a predetermined wireless LAN communication means and a predetermined wireless LAN communication channel to connect the wireless LAN. And a wireless LAN communication unit 260 for processing a predetermined wireless LAN communication corresponding to the communication channel.

In addition, the card terminal 105 equipped with a bridge function of the communication protocol stack may include a power supply unit 230 (eg, a power supply device and / or a battery) for supplying power required for the card terminal 105 to operate. And the like).

The controller 205 includes a processor including a CPU / MPU in hardware and an execution memory (for example, a register and / or a random access memory (RAM)), and the card terminal 105 from the memory unit 255. Includes a predetermined program routine and / or a bus for inputting and outputting program data and a predetermined electronic circuit (or integrated circuit) provided therefor for realizing the overall (and / or characteristic) function of And a program routine that is software-loaded from a predetermined memory unit 255 (and / or chipset) into the execution memory to be processed by the processor to realize at least one predefined function. And / or generic term of the program data (hence, in the present invention, a small size recorded on the recording medium of the card terminal 105 for the bridge function of the communication protocol stack. A definition program routine is illustrated and illustrated as being provided in the control unit 205 for convenience.) Various functions to be implemented in the card terminal 105 by the control unit 205 are realized. In order to realize the above, it is characterized by controlling and operating the overall operation of the card terminal 105.

In particular, when power is input to the card terminal 105 to perform a function of the controller 205 that controls and operates the overall operation of the card terminal 105, an operating system stored in a predetermined memory unit 255. Routines, system management routines, and / or system variables are loaded into the execution memory and computed by the processor to perform functions of providing an operating system, system management program, and / or communication service.

The screen output unit 210 drives a predetermined screen output device (eg, an LCD (Liquid Crystal Display) device, and / or a CRT (Cathode Ray Tube) device) provided in the card terminal 105, Predetermined screen output data (for example, screen output data generated by a screen output program routine) generated from the control unit 205, key data generated through the key input unit 220, predetermined data provided in the card terminal 105 And outputting various information, signals, and / or contents (eg, text contents, image contents, and / or multimedia contents) extracted and / or generated in the process of performing the function of the screen output device. To this end, the screen output unit 210 includes a driver for outputting the screen output information (and / or data) according to the resolution and / or the number of colors corresponding to the screen output device. Lose.

The sound processor 215 drives a sound input device (for example, a microphone) included in the card terminal 105, encodes a predetermined sound signal input from the sound input device, and sends it to the controller 205. Provide a sound, and / or drive a sound input device (eg, a speaker) provided in the card terminal 105, and decode a predetermined sound signal extracted and / or generated by the control unit 205. It is characterized in that output through the output device (for example, a speaker), for this purpose, the sound processing unit 215 is provided with a predetermined vocoder (Vocoder) and codec (Codec). The sound processing unit 215 and the microphone to perform the function of the sound input means provided in the card terminal 105, or the sound processing unit 215 and the sound output provided in the card terminal 105 through the speaker Perform the function of the means.

The key input unit 220 is provided with at least one key button including a predetermined number key and / or a character key and / or a function key. Detects information (or signals) input from a key input device (e.g., a keypad, and / or a keyboard), and specifies a specific input mode of the card terminal 105 controlled by the control unit 205. And / or a predetermined information (or signal) is input from a predetermined key button provided in the keypad in an operation mode, so that at least one or more key events corresponding to the input information (or signal) (eg, MH_KEY_PRESSEVENT, MH_KEY_REPEATEVENT, When MH_KEY_RELEASEEVENT) is generated, the generated key event is provided to the controller 205, and the controller 205 is configured to perform the operation in the current input mode and / or operation mode of the card terminal 105. Read the predetermined key data corresponding to the event (e.g., from the key table that stores (manages) at least one or more key data corresponding to a specific key event in each card terminal 105 input mode and / or operation mode). Read key data to an event) and / or read a command for executing a predetermined function defined in accordance with the key event. The keypad including the key input unit 220 and at least one key button performs a function of key input means provided in the card terminal 105 in cooperation with each other.

The customer who receives the electronic payment service through the card terminal 105 may use an MS (Magnetic Stripe) card based on the ISO / IEC 7810 standard, and / or a contact IC card (or wireless) based on the ISO / IEC 7816 standard. IC chip), and / or a card including (or owning) at least one contactless IC card (or wireless IC chip) based on ISO / IEC 14443 standard, and the card reader unit 235 (x10). Is characterized in that to provide an interface for reading at least one or more information or data provided in the card.

According to the embodiment of the present invention, the card reader unit 235 is an MS card reader unit 235 which provides an interface between the MS card and the card terminal 105, and / or the contact IC card and the card. A contact IC card reader 235 providing an interface between the terminals 105 and / or a contactless IC card reader 235 providing an interface between the contactless IC card and the card terminal 105. .

The MS card reader 235 is a card reader 235 based on ISO / IEC 7810. The MS card reader 235 includes at least one magnetic head including a predetermined coil. The magnetic head is moved in a predetermined direction in close contact with the magnetic head (or the magnetic head moves in close contact with an MS card in which predetermined information is recorded). By using a predetermined electrical signal is loaded on the interface of the predetermined information or data from the at least one or more tracks provided in the MS of the MS card to the card terminal (105).

The contact type IC card reader 235 is a card reader 235 based on ISO / IEC 7816. The contact type IC card reader 235 forms at least an electrical contact in contact with a chip on board (COB) provided in the contact type IC card. It comprises at least one contact point, and supplies power to the IC chip of the IC card through the contact point, and predetermined from the IC chip through the half-duplex transaction using an Application Protocol Data Unit (APDU) It is characterized in that the information or data of the interface to the card terminal 105.

The contactless IC card reader 235 is a card reader 235 based on ISO / IEC 14443. The contactless IC card reader 235 is contactless with a contactless IC card by using capacitive coupling and / or inductive coupling. It comprises at least one antenna making an electrical contact, the power supply to the IC chip of the IC card through the antenna, and predetermined from the IC chip through the half-duplex transaction using the APDU It is characterized by interfacing the information or data to the card terminal 105.

According to the exemplary embodiment of the present invention, the card reader 235 is provided with predetermined card information (eg, in the card) from at least one or more card readers 235 for the electronic payment service defined in the card terminal 105. The payment means information corresponding to the payment means including at least one credit card, debit card, debit card, cash card, financial account).

The Secure Application Module (225) is a confidentiality and / or authentication required by the card terminal 105 in the process of performing the electronic payment and / or electronic payment using the card. Security requirements, including integrity and / or nonrepudiation, etc., within the card terminal 105 without using an authentication server (or payment server 115) on a payment network. As a safety device for performing a reliable and reliable structure, a predetermined message (information or data) processed in the process of performing the predetermined security request function (for example, electronic payment and / or electronic payment function) by the card terminal 105. ) Encrypts or decrypts, adds an authenticator to prevent forgery (or tampering) of the message, or stores important information in the process of performing the security request function. And performing a function according to claim.

In general, the security application module 225 is preferably composed of a predetermined security application module 225 inserter and a security application module 225 chip, the security application module 225 chip is a chip containing at least 8-bit CPU Application Specific Integrated Circuit (ASIC) chips (eg, PLCC 44-pin chips) and / or IC chips (eg, IC cards in the form of subscriber identity modules (SIMs)) with performance of 2 MIPS (Million Instructions Per Second) or more. It is preferable to comprise a.

In addition, the security application module 225 is at least one or more security application data (eg, at least one identifier, version, expiration date, issue date, code value, etc.) required for the card terminal 105 to perform a predetermined security request function ) And / or keys (e.g., one master key and at least one application key) and / or protocols (e.g., trading protocols, re-transaction protocols, previous transaction cancellation protocols, collection protocols, SAM issuance protocols, (e-money company / card company) Registration protocol, authorization protocol, mode switching protocol, key download protocol, SAM revocation protocol) and / or commands (e.g., at least one read / authentication / transmission / registration / setting / mode switching / collection / deletion / disposal / initialization) / Reprocessing / cancellation command).

The print output unit 240 may process the card terminal 105 to perform a predetermined function (e.g., an electronic payment processing function using a card) and / or predetermined information or data (e.g., payment processing) generated as a result. Outputting the result information or data to a predetermined printing device (for example, a receipt printer), and a printing protocol for printing the printing information or data through the predetermined printing device in accordance with a predefined printing form. And a driver.

The IP-based communication processor 250 configures the card terminal 105 on an external TCP / IP (and / or UDP / IP) based preferred communication network through a TCP / IP (and / or UDP / IP) based communication protocol. A wired communication means for processing an element and the TCP / IP (and / or UDP / IP) based communication protocol for wired communication, comprising: a connector corresponding to the TCP / IP (and / or UDP / IP) communication standard in hardware; And a device configuration including a signal transceiver and a signal processor, wherein the TCP / IP (and / or UDP / IP) is based on the electrical signal transmitted and received through the connector in the signal transceiver and the signal processor. System programs (e.g., firmware included in each device configuration, and / or system programs included in (or included) in the operating system of the card terminal 105) for processing corresponding to the communication protocol. It is to be preferred.

Here, the connector preferably comprises at least one connector connected to the UTP (Unshielded Twisted Pair) cable and / or a connector connected to the BNC cable, wherein the signal transmission and reception unit decodes the electrical signal received through the connector And / or encoding data (and / or packets) to be transmitted through the connector into an electrical signal, wherein the signal processing unit buffers the decoded data. Extract a packet corresponding to the TCP / IP (and / or UDP / IP) based communication protocol, and / or convert the data to be transmitted into a packet corresponding to the TCP / IP (and / or UDP / IP) based communication protocol It is preferable to include a, and in particular, the signal transmitting and receiving unit and the signal processor is the data transmitted and received (and / Or packet) to further perform functions such as retransmission and / or error detection.

Those skilled in the art to which the present invention belongs, the network configuration on the TCP / IP (and / or UDP / IP) based wired communication network through the TCP / IP (and / or UDP / IP) based communication protocol Since it will be familiar with the technical configuration of the element and the IP-based communication processing unit 250 to perform wired communication through the TCP / IP (and / or UDP / IP) based communication protocol, a detailed description thereof will be omitted for convenience. do.

The memory unit 255 is input and output when an operation by a predetermined program routine (or code) and / or program data (eg, program routine (or code)) for controlling the overall operation of the card terminal 105 is performed. A general term for memory that stores information and / or data; read only memory (ROM) corresponding to read-only memory, flash memory (FM), and electrically erasable and programmable read only (EEPROM). And a nonvolatile memory including at least one of a memory, a hard disk drive, and the like.

In general, the ROM stores system information that should not be deleted, and the nonvolatile memory includes an operating system routine, a communication processing program routine, and / or various application program routines provided through the card terminal 105 and information or data therefor. Etc. are stored.

According to the present invention, the memory unit 255 stores communication parameter information corresponding to at least one communication network to which the card terminal 105 can connect in order to provide a bridge function of the communication protocol stack. It is done.

Here, the communication parameter information is parameter information for connecting to each communication network according to a communication protocol standard defined in at least one communication network to which the card terminal 105 can connect. In the process of connecting to the wired communication network (and / or communication connection) is made including the basic information defined to transmit and receive with the network components on each communication network.

According to the present invention, the memory unit 255 processes an address corresponding to an address to be allocated to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected through the WLAN communication unit 260. It is characterized by storing the information.

In order for the WLAN terminal 100 connected to the card terminal 105 and a predetermined WLAN communication channel to access (and / or communicate) with the communication network, the WLAN terminal 100 connected to the WLAN communication channel is connected to the WLAN terminal 100. Although a predetermined address usable in a wired communication network should be allocated, in general, the WLAN terminal 100 is not assigned an address for accessing (and / or communicating) the wired communication network, and / or the wired communication network. An address that cannot be used by is assigned.

Therefore, the card terminal 105 is connected to the WLAN terminal 100 through the card terminal 105 in the process of connecting the WLAN terminal 100 with a predetermined WLAN communication channel (and / or communication). A predetermined address that can be used in a wired communication network to be connected) should be allocated, and the address processing information includes information for allocating a predetermined address that can be used in a wired communication network to the WLAN terminal 100.

According to an embodiment of the present invention, the WLAN terminal 100 can be used in the wired communication network from a dynamic address allocation server (eg, a DHCP server, not shown) on the wired communication network bridged through the card terminal 105. A predetermined address may be dynamically allocated, and the address processing information corresponds to a procedure for the card terminal 105 to dynamically allocate a predetermined address from a dynamic address allocation server (not shown) on the wired communication network. It is preferable that the information is included.

According to another exemplary embodiment of the present invention, the card terminal 105 may secure a predetermined address (and / or address area) to be allocated to the WLAN terminal 100 to which the WLAN communication channel is connected. In this case, the address processing information preferably includes address information (and / or address area information) to be assigned to the card terminal 105.

According to another exemplary embodiment of the present invention, the card terminal 105 is a predetermined virtual address (eg, IPv4 based IP address) to the WLAN terminal 100 to which the WLAN communication channel is connected, “192.168. 0.1 to 255 "), wherein the address processing information includes information for allocating a virtual address to the WLAN terminal 100.

According to the present invention, the memory unit 255 preferably stores a predetermined communication program routine for providing a bridge function of the communication protocol stack. The communication program routine may include booting of the card terminal 105. And at the same time (or through a predetermined communication-related command) loaded into the execution memory of the control unit 205, whereby a functional configuration of a communication program routine for providing a bridge function of the communication protocol stack is provided for convenience. A block diagram in the control unit 205 will be described.

Referring to FIG. 2, when a communication program routine for providing a bridge function of the communication protocol is connected to the WLAN terminal 100 and a predetermined WLAN communication channel through at least one WLAN communication unit 260, An address processor 280 for allocating and processing an address for accessing (and / or communicating) the wired communication network to the WLAN terminal 100, and reading the packet information transmitted and received on the protocol stack to read the packet. A bridge check unit 275 for checking whether to bridge or use the transmit / receive packet in the card terminal 105, and a protocol corresponding to the wireless LAN communication unit 260 when the check result is to bridge the transmit / receive packet. And a bridge function unit 265 which bridges the stack and the protocol stack corresponding to the communication processing unit.

In addition, the communication program routine that provides the bridge function of the communication protocol, when bridging the transmission and reception packet as a result of the confirmation by the bridge confirmation unit 275, and confirms whether or not to convert the transmission and reception packet structure, according to the confirmation result And a protocol conversion unit 270 for converting the transmission / reception packet to be bridged on a protocol stack.

In general, the application program (and / or terminal program for electronic payment processing) provided in the card terminal 105 is characterized in that it works in conjunction with the highest layer on the communication protocol stack, and fully trust the communication protocol stack of the lower layer below To be manufactured and developed.

That is, an application program (and / or terminal program for electronic payment processing) included in the card terminal 105 operates by calling an API (Application Program Interface) function corresponding to the highest layer on the communication protocol stack. The communication protocol stack of the layer is a system program provided in the communication processor (eg, WCDMA / HSDPA communication processor and / or IEEE 802.11x communication processor and / or IEEE 802.16x communication processor and / or IP-based communication processor 250, etc.). And / or is operated and controlled by a system program included in an operating system of the card terminal 105, wherein the application program (and / or terminal program for electronic payment processing) is a communication protocol stack of the lower layer. Does not approach.

According to the present invention, in the communication protocol structure as described above, the bridge function unit 265 is a communication processing unit (e.g., WCDMA / HSDPA communication processing unit and / or IEEE 802.11x communication processing unit and / or provided in the card terminal 105). Between a communication protocol layer (eg, a physical layer, a data link layer) corresponding to an IEEE 802.16x communication processor and / or an IP-based communication processor 250 and a communication protocol layer provided on an operating system of the card terminal 105. And a logical bridge function layer that logically bridges a protocol layer corresponding to the WLAN communication unit 260 and a protocol layer corresponding to the external communication unit.

According to an embodiment of the present invention, the logical bridge function layer is included in a predetermined protocol layer on the communication protocol layer provided in the card terminal 105, and / or in at least two or more protocol layers according to the function of each layer. All of them can be included separately, and the present invention is not limited thereto.

According to one embodiment of the present invention, the protocol stack above the logical bridge function layer preferably includes a structure included in a hierarchical structure corresponding to the main communication protocol stack provided in the card terminal 105, The protocol stack below the logical bridge functional layer has a hierarchical structure corresponding to a main communication protocol stack provided in the card terminal 105, and a layer corresponding to at least one or more other communication protocol stacks bridged by the logical bridge functional layer. It is preferable to comprise a structure.

That is, it is preferable that the upper layer performs protocol stack processing for using the packet terminal transmitted and received through the protocol stack in the card terminal 105 based on the logical bridge function layer, and bridged by the logical bridge function layer. Preferably at least two protocol layers corresponding to the protocol stack to be located beneath the logical bridge functional layer.

For example, the card terminal 105 is a main communication protocol stack is a TCP / IP (and / or UDP / IP) communication protocol (= card terminal 105 is a TCP / IP (and / or UDP / IP) based wired communication network. Connect to (and / or communicate with) the logical bridge function layer in a particular layer of the TCP / IP (and / or UDP / IP) communication protocol layer. The upper layer of the layer is implemented with the TCP / IP (and / or UDP / IP) communication protocol layer, and the lower layer of the layer provided with the logical bridge function layer is the TCP / IP (and / or UDP / IP) communication. It comprises a lower layer of the protocol stack and also comprises a lower layer of at least one or more other protocol stacks bridged through the logical bridge functional layer.

In this case, the logical bridge functional layer may include at least two or more protocol stacks located in lower layers of the corresponding protocol layers based on a TCP / IP (and / or UDP / IP) communication protocol stack corresponding to the main communication protocol stack. Bridge and / or bridge mutually compatible protocol layers.

The address processing unit 280 is stored in the memory unit 255 when a predetermined wireless LAN terminal 100 and a wireless LAN communication channel are connected through the wireless LAN communication unit 260 provided in the card terminal 105. It is characterized by assigning and processing a predetermined address for accessing (and / or communicating) the wired communication network to the WLAN terminal 100 using address processing information.

According to an exemplary embodiment of the present invention, the address processing unit 280 extracts address processing information including dynamic address allocation server information existing on the wired communication network from the memory unit 255, and extracts the address processing information. It is preferable to access a dynamic address assignment server located on the wired network based on the request, request a predetermined address to be allocated to the WLAN terminal 100, and allocate the allocated address to the WLAN terminal 100. Accordingly, the wireless LAN terminal 100 connected to the card terminal 105 and a predetermined wireless LAN communication channel is connected to the wired communication network to the assigned address through a bridge function on a protocol stack provided in the card terminal 105. Can be connected to (and / or communicated with).

According to another exemplary embodiment of the present invention, the address processing unit 280 may assign predetermined address information (and / or address) to be allocated from the memory unit 255 to the WLAN terminal 100 to which the WLAN communication channel is connected. Extracting predetermined address processing information including area information) and allocating the predetermined address to the WLAN terminal 100 based on the address information (and / or address area information) included in the address processing information. Preferably, the wireless LAN terminal 100 is connected to the card terminal 105 and a predetermined wireless LAN communication channel is wired to the assigned address through a bridge function on the protocol stack provided in the card terminal 105. It is possible to connect (and / or communicate) to a communication network.

According to another exemplary embodiment of the present invention, the address processing unit 280 may be allocated from the memory unit 255 to the WLAN terminal 100 to which the WLAN communication channel is connected (eg, another WLAN terminal). Extracts predetermined virtual address information (for example, "192.168.0.1 to 255" for an IPv4-based IP address), which is not duplicated with 100, and based on the virtual address information included in the address processing information; It is preferable to assign a predetermined address to the WLAN terminal 100, whereby the WLAN terminal 100 connected to the card terminal 105 and a predetermined WLAN communication channel is provided in the card terminal 105. The bridge function on the protocol stack allows a connection (and / or communication connection) to the wired communication network to the assigned address.

According to the exemplary embodiment of the present invention, the address processor 280 allocates and processes a predetermined address obtained through the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected. It is preferable to directly allocate a predetermined address obtained in response to the address processing information in the WLAN terminal 100 to which the WLAN communication channel is connected. In such an embodiment, a predetermined address may be assigned to the WLAN terminal 100. A wireless LAN communication means operating on a basis is provided, and can be effectively implemented when the wireless LAN communication means is provided with a function configuration for dynamically allocating a predetermined address.

For example, when a function configuration for allocating a predetermined address is provided in the WLAN terminal 100 provided in the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected (for example, When the WLAN communication means provided in the WLAN terminal 100 operates through address assignment), the address processing unit 280 transmits the address obtained in response to the address processing information to the WLAN terminal 100. By providing, the address is dynamically allocated through the function of address assignment related function provided in the WLAN terminal 100.

According to the exemplary embodiment of the present invention, the address processor 280 allocates and processes a predetermined address obtained through the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected. It is preferable to logically allocate a predetermined address obtained in correspondence with the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected. Effective when the LAN communication means does not operate based on a predetermined address, and / or the WLAN communication means operates based on a predetermined address, but is not equipped with a function configuration for dynamically allocating the address. Can be implemented.

Here, logically allocating the address to the WLAN terminal 100 means that the card terminal 105 does not directly allocate a predetermined address obtained through the address processing information in the WLAN terminal 100. Processes the address in association with the WLAN communication channel information (and / or WLAN terminal 100 information) and temporarily stores the address, and then, from the WLAN terminal 100 to the wired communication network through the WLAN communication channel. When a packet requested to be transmitted is received, the card terminal 105 converts the packet into a packet structure that can be transmitted to the wired communication network through the stored address, and / or the card terminal 105 stores the packet. And adding (and / or inserting) a predetermined address to the packet and transmitting it to the wired communication network.

Alternatively, when a packet to be finally received from the wired communication network to the WLAN terminal 100 is received, the packet is compared to the stored address by comparing the packet included in the received packet with the stored packet at the card terminal 105. Converting to a packet structure corresponding to a LAN communication channel and / or enhancing (and / or erasing) an address included in the received packet at the card terminal 105 and transmitting it to the WLAN terminal 100. It is made to include.

The bridge check unit 275 receives a predetermined packet through a wireless LAN communication channel with a predetermined wireless LAN terminal 100 through the wireless LAN communication unit 260 provided in the card terminal 105 (for example, The packet transmitted from the WLAN terminal 100 flows into the card terminal 105), reads the received packet and uses the packet in the card terminal 105, and / or according to the present invention. It is characterized in that whether to bridge to the wired communication network through the bridge function of the protocol stack.

In addition, when the bridge check unit 275 bridges the packet to a protocol stack corresponding to the communication processing unit, the bridge check unit 275 checks whether the packet is a packet for payment processing or a packet for wireless LAN connection. It is done.

According to an embodiment of the present invention, a packet received through the WLAN communication channel to the card terminal 105 may include packet information corresponding to each protocol layer from a lower layer on a protocol stack corresponding to the WLAN communication unit 260. The bridge identification unit 275 reaches the logical bridge function layer while being provided to an upper layer while being removed, and the bridge checking unit 275 receives a packet including at least one packet information from a lower layer on a protocol stack corresponding to the WLAN communication unit 260. When the logical bridge function layer is reached, the packet information included in the packet (eg, destination information where the packet was last transmitted) is read to use the packet at the card terminal 105 and / or to the wired communication network. It is advisable to check whether or not to transmit.

If it is confirmed that the packet is not bridged on the protocol stack, the packet is provided to the upper layer of the logical bridge function layer by the bridge function unit 265 and is provided in the card terminal 105. Processing through a program (and / or a terminal program for electronic payment processing).

On the other hand, if it is confirmed that the packet is bridged on the protocol stack, the packet corresponds to a communication processor provided in the card terminal 105 via the logical bridge function layer by the bridge function unit 265. Bridged to the stack and sent to the wired network.

In addition, when a predetermined packet is generated in the card terminal 105 (eg, a packet generated in an upper layer of the main protocol stack included in the card terminal 105), the bridge check unit 275 may generate the logical bridge. Reaches the functional layer), reads the generated packet and transmits the packet to a wired communication network through a protocol stack corresponding to the communication processor, and / or to a protocol stack corresponding to the WLAN communication unit 260. It is characterized by checking whether to bridge.

According to the exemplary embodiment of the present invention, the data to be transmitted to the outside generated by the card terminal 105 is provided to the lower layer while the packet information corresponding to each protocol layer is added from the upper layer on the communication protocol layer, and the lowest layer ( For example, the physical layer transmits the communication packet including at least one packet information corresponding to each layer (for example, destination information where the packet was last transmitted) to the outside as described above. When a packet including at least one packet information reaches a logical bridge function layer from the upper layer, by reading the packet information contained in the packet, whether the packet is to be transmitted to a wired communication network, and / or the wireless LAN communication It is preferable to check whether to transmit to the WLAN terminal 100 through a channel.

If it is confirmed that the packet is not bridged on the protocol stack, the packet is transmitted by the bridge function 265 to a wired communication network through a main protocol stack connected to a lower layer of the logical bridge function layer.

On the other hand, if it is confirmed that the packet is bridged on the protocol stack, the packet is transmitted to the WLAN terminal 260 provided in the card terminal 105 via the logical bridge function layer by the bridge function unit 265. It is bridged to a protocol stack corresponding to and is transmitted to the WLAN terminal 100 through the WLAN communication channel.

When a predetermined packet is received from a wired communication network through the communication processing unit included in the card terminal 105, the bridge checking unit 275 reads the received packet to use the packet in the card terminal 105. And / or whether to bridge to a predetermined WLAN terminal 100 through a bridge function of the protocol stack according to the present invention.

According to the embodiment of the present invention, the packet received from the wired network to the card terminal 105 is provided to the upper layer while the packet information corresponding to each protocol layer is removed from the lower layer of the main protocol stack. As described above, data in which each packet information is removed in each layer is provided to the application program (and / or terminal program for electronic payment processing), and the bridge check unit 275 includes at least one packet information. When the logical bridge function layer arrives from the lower layer of the main protocol stack, the packet information included in the packet (for example, destination information to which the packet was last transmitted) is read, thereby making the packet available to the card terminal 105. And / or whether to transmit to the WLAN terminal 100 through the WLAN communication channel. It is desirable.

If it is confirmed that the packet is not bridged on the protocol stack, the packet is provided to the upper layer of the logical bridge function layer by the bridge function unit 265 and is provided in the card terminal 105. Processing through a program (and / or a terminal program for electronic payment processing).

On the other hand, if it is confirmed that the packet is bridged on the protocol stack, the packet is transmitted to the WLAN terminal 260 provided in the card terminal 105 via the logical bridge function layer by the bridge function unit 265. It is bridged to a protocol stack corresponding to and is transmitted to the WLAN terminal 100 through the WLAN communication channel.

The protocol conversion unit 270 is characterized in that it is provided with a function to determine whether or not to convert the transmission and reception packet structure when bridged the transmission and reception packets as a result of the confirmation of the bridge confirmation unit 275.

If it is confirmed that the transmission / reception packet structure needs to be converted, the protocol conversion unit 270 may convert the transmission / reception packet to be bridged on a protocol stack.

According to an embodiment of the present invention, when the protocol conversion unit confirms that the packet is a packet for payment processing as a result of the verification by the bridge confirmation unit 275, the packet is converted into the SSL (or Secure Sockets Layer) and / or TLS ( Preferably, the method further comprises encrypting with a security protocol corresponding to the TCP / IP (and / or UDP / IP) based wired communication network, such as Transport Layer Security) and / or AAA (Authentication, Authorization and Accounting).

According to an embodiment of the present invention, the protocol conversion unit 270 converts a packet corresponding to the WLAN communication unit 260 into a packet structure corresponding to the communication processing unit, in the WLAN communication unit 260. Reading encapsulating packets with a packet structure defined in a corresponding protocol stack to read predetermined packet data, and encapsulating the read packet data into a packet structure defined in a protocol stack corresponding to the communication processor It is preferable to comprise a.

If the packet data size read from the packet corresponding to the wireless LAN communication unit 260 is not compatible with the packet data size of the packet corresponding to the communication processing unit, the protocol conversion unit 270 may read the read packet data. It is preferable to further comprise a function of buffering (Buffering) to make the read packet data size compatible.

According to another embodiment of the present invention, the protocol conversion unit 270 converts a packet corresponding to the wireless communication unit 260 into a packet structure corresponding to the communication processing unit, the wireless communication unit 260. Adding (or inserting) packet information that can be transmitted to a wired communication network through a communication processor provided in the card terminal 105 to a packet generated (and / or processed) in a packet structure defined in a protocol stack corresponding to It is preferable to comprise a.

According to an exemplary embodiment of the present invention, a method of converting a packet structure corresponding to the wireless LAN communication unit 260 into a packet corresponding to the communication processing unit by the protocol conversion unit 270 may include a protocol stack corresponding to the communication processing unit. Reads a packet encapsulating the packet encapsulated in a packet structure defined in the present invention to read predetermined packet data, and encapsulates the read packet data into a packet structure defined in a protocol stack corresponding to the WLAN communication unit 260. It is preferable to include the process.

If the packet data size read from the packet corresponding to the communication processor is not compatible with the packet data size of the packet corresponding to the WLAN communication unit 260, the protocol converter 270 may read the read packet data. It is preferable to further comprise a function of buffering (Buffering) to make the read packet data size compatible.

According to another exemplary embodiment of the present invention, the protocol conversion unit 270 converts a packet corresponding to the communication processing unit into a packet structure corresponding to the WLAN communication unit 260 may include a protocol corresponding to the communication processing unit. Removing (or erasing) packet information that is not compatible with the protocol stack corresponding to the WLAN communication unit 260 among the packet information included in the packet generated (and / or processed) in the packet structure defined in the stack. It is preferable to comprise.

Hereinafter, a card end having a bridge function of the communication protocol stack based on an external communication means and / or a wireless LAN communication means supporting a communication protocol stack compatible with the OSI (Open Systems Interconnection) 7 layer among a plurality of communication protocols. The technical features of the horse 105 are shown and described.

However, the present invention is not only applicable to a communication protocol stack compatible with the OSI 7 layer, and a person having ordinary skill in the art to which the present invention pertains has another layer structure through the embodiment of the present invention shown below. Corresponding to each communication protocol stack made, including the technical features of the card terminal 105 equipped with a bridge function of the communication protocol stack according to the present invention, the present invention can be inferred all the implementation method It is not limited to the implementation method shown below.

3A, 3B, 3C, and 3D illustrate a logical bridge function hierarchical structure for providing a bridge function of a communication protocol stack according to an exemplary embodiment of the present invention.

3A, 3B, 3C, and 3D show that the card terminal 105 having the bridge function of the communication protocol stack is based on TCP / IP (and / or UDP / IP), which is compatible with OSI 7 layer. At least one WLAN terminal 100 and / or at least one radio accessing (and / or communicating) an IP-based wired network supporting a communication protocol stack and also including a protocol stack compatible with the OSI 7 layer When the LAN terminal 100 is connected to a predetermined WLAN communication channel, a method for implementing a logical bridge function layer for bridging a communication protocol stack corresponding to the wireless LAN communication channel and a communication protocol stack corresponding to a wired communication network Specifically, Figure 3a illustrates a higher layer (and / or sublayer of the network layer) of the datalink layer on a communication protocol compatible with the OSI 7 layer. FIG. 3B illustrates an implementation method including a logical bridge function layer that provides a bridge function of an existing communication protocol stack, and FIG. 3B illustrates an upper layer (and / or a part of a transport layer) of a network layer on a communication protocol compatible with the OSI 7 layer. Layer 3) illustrates an implementation method in which a logical bridge function layer is provided for providing a bridge function of the communication protocol stack, and FIG. 3c shows an upper layer (and / or session) of a transport layer on a communication protocol compatible with the OSI 7 layer. A sub-layer of a layer) illustrates an implementation method including a logical bridge function layer providing a bridge function of the communication protocol stack, and FIG. 3D illustrates an upper layer (and a session layer) of a session layer on a communication protocol compatible with the OSI 7 layer. / Or the sublayer of the presentation layer) provides the bridge function of the communication protocol stack Illustrates an exemplary method to be provided with a logical bridge function layer.

Those skilled in the art to which the present invention pertains may refer to and / or modify the drawings 3a, 3b, 3c, and 3d so that the card terminal 105 is connected to a communication network other than the IP-based wired communication network. In case of connection (and / or communication connection), various implementation methods may be inferred for the logical bridge function layer that bridges the communication protocol stack corresponding to the WLAN communication channel and the communication protocol stack corresponding to the wired communication network. The present invention includes all the inferred implementation methods, and is not limited to the implementation methods shown in FIGS. 3A, 3B, 3C, and 3D.

Also, those skilled in the art may refer to and / or modify the drawings 3a, 3b, 3c, and 3d so that the present invention is on another communication protocol stack that is incompatible with the OSI 7 layer. Although various implementation methods may be inferred having a logical bridge function layer for providing a bridge function of a communication protocol stack according to the present invention, the present invention includes all of the inferred implementation methods, and FIGS. 3a, 3b and 3c. And the implementation method shown in FIG. 3D.

In addition, those of ordinary skill in the art to which the present invention pertains refer to and / or modify the drawings 3a, 3b, 3c, and 3d to provide a communication protocol stack compatible with the OSI 7 layer and the OSI 7 layer. It would be possible to infer various implementations having a logical bridge function layer that provides a bridge function of the communication protocol stack according to the present invention on an incompatible communication protocol stack, but the present invention includes all such inferred implementation methods. However, the present invention is not limited to the embodiment shown in FIGS. 3A, 3B, 3C, and 3D.

3A, 3B, 3C, and 3D, the OSI 7 hierarchical structure configures and maintains a physical link to enable data communication through a predetermined communication network, and a communication line corresponding to the physical link. A physical layer that defines the mechanical, electrical, functional, and procedural characteristics for establishing and / or maintaining and / or breaking circuit connections for direct transmission of data bits through Once the link is established, the physical layer is controlled to define functions for data delivery reliability such as addressing, network topology, circuit usage rules, error detection, frame forwarding and flow control for the physical link. A network between a datalink layer and at least two communication systems that are physically connected through the communication network. Network Layer, which defines error control, flow control and multiplexing functions to provide path selection and connectivity, and virtual circuit construction, path maintenance, termination, and transmission for reliability of data transmission. And a transport layer that provides error detection, recovery, and flow control, wherein the physical layer, the data link layer, the network layer, and the transport layer provide reliability of data transmitted and received through a predetermined communication network. It is desirable to be defined for the primary purpose of the transmission.

In the OSI 7 hierarchical structure, the network layer further performs a function of correcting that an order of a packet is changed or an error occurs, and TCP and / or UDP are defined in the network layer.

According to an embodiment of the present invention, in the OSI 7 hierarchical structure, the physical layer and the data link layer include a hardware device configuration of a communication processing unit provided in the card terminal 105, and / or the configuration of the communication device. It is preferable to include corresponding firmware, whereby the logical bridge function layer providing the bridge function of the communication protocol stack according to the present invention is preferably defined at an upper layer of the physical layer and the data link layer.

According to another embodiment of the present invention, a logical bridge function layer that provides a bridge function of the communication protocol stack may be manufactured in the form of firmware and defined in the data link layer and / or the physical layer, thereby limiting the present invention. Not.

According to another embodiment of the present invention, some of the wireless LAN communication unit 260 which is not compatible with the OSI 7 layer structure also includes a functional unit corresponding to the physical layer of the OSI 7 layer and the MAC layer of the OSI 7 layer. The wireless LAN communication unit 260, which is not compatible with the OSI 7 hierarchical structure, also includes a corresponding functional configuration unit. It is possible to define a logical bridge function layer that provides a bridge function of a protocol stack, whereby the present invention is not limited.

3A, 3B, 3C, and 3D, the OSI 7 hierarchical structure provides a function of configuring, managing, and terminating a communication session between applications provided in at least two communication systems connected through a predetermined communication network. A session layer defining a presentation layer, a presentation layer defining data conversion, compression, and encryption / decryption functions between applications provided in at least two communication systems connected through a predetermined communication network; And an application layer corresponding to an application program included in at least two communication systems connected through a communication network.

According to an embodiment of the present invention, the session layer and / or the presentation layer and / or the application layer may be integrated into one layer according to the functional characteristics of the card terminal 105 providing the bridge function of the communication protocol stack. As such, the present invention is not limited thereto.

3A, 3B, 3C, and 3D, the card terminal 105 connects to the TCP / IP (and / or UDP / IP) based communication network and provides the TCP / IP to provide a communication connection. An Ethernet physical layer including (and / or UDP / IP) and a datalink layer including an Ethernet MAC layer including the TCP / IP (and / or UDP / IP). It is characterized by.

The physical layer corresponding to the TCP / IP (and / or UDP / IP) standard includes a network interface card (NIC) and / or a high-speed Internet device (eg, a cable communication modem, and / or) provided in the card terminal 105. A hub connected to a network component (e.g., via a UTP cable with a NIC) through an Asymmetric Digital Subscriber Line (ADSL) communication modem and / or a Very High-data Rate Digital Subscriber Line (VDSL) communication modem. Hub) and / or a router, and an internet service provider (ISP) device connected to the high speed internet device through a predetermined BNC cable). It is characterized in that it is physically connected to at least one server (and / or card terminal 105) through a wired communication interval including a backbone network.

The MAC layer included in the data link layer corresponding to the TCP / IP (and / or UDP / IP) standard performs a medium access control function defined in the IEEE 802.3 standard, and at least corresponds to the physical layer. It consists of one or more sublayers.

Those skilled in the art to which the present invention pertains can refer to the TCP / IP (and / or UDP / IP) communication protocol specification to provide technical features of the MAC layer included in the physical layer and the data link layer. As will be understood, detailed descriptions of the physical layer and the data link layer corresponding to the TCP / IP (and / or UDP / IP) communication protocol specification will be omitted for convenience.

Referring to FIG. 3A, the logical bridge functional layer is provided at an upper layer (and / or sub-layer included in a network layer) of the data link layer, wherein the logical bridge functional layer is the data link. The physical layer and MAC layer of the TCP / IP (and / or UDP / IP) communication protocol stack in the upper layer (and / or network layer) of the layer and the MAC of the WLAN communication protocol stack provided in the card terminal 105. Bridge the layer (and / or LLC layer) and the physical layer on a protocol stack.

In addition, the logical bridge function layer provided in an upper layer (and / or sub-layer included in the network layer) of the data link layer may include a presentation layer, a session layer, and a transport layer at an application layer on the communication protocol stack. A function for transmitting / receiving a communication packet provided to the network layer to the TCP / IP (and / or UDP / IP) based wired communication network through the MAC layer and the physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack. In addition, the communication packet is characterized in that it further comprises a bridge to transmit and receive to the MAC layer (and / or LLC layer) and the physical layer of the WLAN communication protocol stack provided in the card terminal 105.

In FIG. 3A, the logical bridge function layer is illustrated as a sub-layer provided above the network layer for convenience, but the logical bridge function layer is a sub-layer existing between the network layer and the data link layer, and / or the It may be a sublayer provided below the network layer, whereby the present invention is not limited.

Referring to FIG. 3B, the logical bridge functional layer is provided at an upper layer (and / or sub-layer included in the transport layer) of the network layer, wherein the logical bridge functional layer is A physical layer, a MAC layer, and a network layer of the TCP / IP (and / or UDP / IP) communication protocol stack in an upper layer (and / or transport layer) and a WLAN communication protocol stack provided in the card terminal 105. Bridge the network layer, MAC layer (and / or LLC layer) and physical layer on the protocol stack.

The logical bridge function layer provided in an upper layer (and / or sublayer included in a transport layer) of the network layer may include a presentation layer and an application layer at an application layer on the communication protocol stack and the transport layer. A function of transmitting and receiving a communication packet to the TCP / IP (and / or UDP / IP) based wired communication network through a network layer, a MAC layer, and a physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack. In addition, the communication packet is characterized in that it further comprises the transmission and reception bridged to the network layer, MAC layer (and / or LLC layer) and the physical layer of the wireless LAN communication protocol stack provided in the card terminal 105 .

If there is no network layer in the protocol stack corresponding to the WLAN communication unit 260 in the embodiment illustrated in FIG. 3B, the network layer of the TCP / IP (and / or UDP / IP) based communication protocol stack. The logical bridge function layer provided at an upper layer (and / or a sublayer included in a transport layer) of the network layer, the MAC layer, and the physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack and the It is possible to directly bridge the MAC layer (and / or LLC layer) and the physical layer of the WLAN communication protocol stack provided in the card terminal 105 on the protocol stack, thereby not limiting the present invention.

In FIG. 3B, the logical bridge function layer is illustrated as a sub-layer provided above the transport layer for convenience, but the logical bridge function layer is a sub-layer existing between the transport layer and the network layer, and / or the transmission. It may be a sublayer provided below the hierarchy, and the present invention is not limited thereby.

Referring to FIG. 3C, the logical bridge functional layer is provided at an upper layer (and / or sub-layer included in the session layer) of the transport layer, wherein the logical bridge functional layer is WLAN communication provided in the card terminal 105 with the physical layer, MAC layer, network layer, and transport layer of the TCP / IP (and / or UDP / IP) communication protocol stack in an upper layer (and / or session layer) Bridge the transport layer, network layer, MAC layer (and / or LLC layer) and physical layer of the protocol stack on the protocol stack.

The logical bridge function layer provided in an upper layer (and / or a sublayer included in a session layer) of the transport layer may be a communication packet provided to the session layer through a presentation layer at an application layer on the communication protocol stack. In addition to the function of transmitting and receiving to the TCP / IP (and / or UDP / IP) based wired communication network through the transport layer, network layer, MAC layer and physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack And bridging and transmitting the communication packet to a transport layer, a network layer, a MAC layer (and / or LLC layer), and a physical layer of a WLAN communication protocol stack provided in the card terminal 105. It is done.

If there is no network layer and transport layer in the protocol stack corresponding to the WLAN communication unit 260 in the embodiment illustrated in FIG. 3C, the TCP / IP (and / or UDP / IP) based communication protocol stack The logical bridge function layer provided in an upper layer (and / or sublayer included in the session layer) of the transport layer of the transport layer, the network layer of the TCP / IP (and / or UDP / IP) communication protocol stack, It is possible to bridge MAC layer and physical layer and MAC layer (and / or LLC layer) and physical layer of the WLAN communication protocol stack provided in the card terminal 105 directly on the protocol stack, thereby limiting the present invention. Not.

In FIG. 3C, the logical bridge function layer is illustrated as a sub-layer provided above the session layer for convenience, but the logical bridge function layer is a sub-layer existing between the session layer and the transport layer, and / or the session. It may be a sublayer provided below the hierarchy, and the present invention is not limited thereby.

Referring to FIG. 3D, the logical bridge functional layer is provided in an upper layer (and / or sub-layer included in the presentation layer) of the session layer, wherein the logical bridge functional layer is the session layer. At the upper layer (and / or presentation layer) of the physical layer, MAC layer, network layer, transport layer and session layer of the TCP / IP (and / or UDP / IP) communication protocol stack and the card terminal 105 Bridge the session layer, transport layer, network layer, MAC layer (and / or LLC layer) and the physical layer of the provided WLAN communication protocol stack on the protocol stack.

In addition, the logical bridge function layer provided in an upper layer (and / or sub-layer included in the presentation layer) of the session layer is a communication provided to the session layer through the presentation layer at the application layer on the communication protocol stack. Send packets to the TCP / IP (and / or UDP / IP) based wired network through the session layer, transport layer, network layer, MAC layer, and physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack. In addition to the function of transmitting and receiving, the communication packet is bridged to the session layer, transport layer, network layer, MAC layer (and / or LLC layer) and the physical layer of the wireless LAN communication protocol stack provided in the card terminal 105 for transmitting and receiving Characterized in that further comprises.

If there is no network layer and / or transport layer and / or session layer in the protocol stack corresponding to the WLAN communication unit 260 in the embodiment illustrated in FIG. 3D, the TCP / IP (and / or UDP) The logical bridge function layer provided at an upper layer (and / or sub-layer included in the presentation layer) of the session layer of the / IP) based communication protocol stack is the TCP / IP (and / or UDP / IP) communication protocol stack. To directly bridge the MAC layer (and / or LLC layer) and the physical layer of the WLAN communication protocol stack provided in the card terminal 105 with the session layer, the transport layer, the network layer, the MAC layer, and the physical layer. It is possible that the present invention is not limited thereby.

In FIG. 3D, the logical bridge functional layer is illustrated as a sub-layer provided above the presentation layer for convenience, but the logical bridge functional layer is a sub-layer existing between the presentation layer and the session layer, and / or The sublayer provided below the presentation layer may be used, and the present invention is not limited thereto.

4A and 4B illustrate a protocol stack structure in which a card terminal 105 having a bridge function of a communication protocol stack according to an embodiment of the present invention bridges a wireless LAN terminal 100 to a wired communication network.

In more detail, FIGS. 4A and 4B show a bridge function of a communication protocol stack through a logical bridge function layer provided in an upper layer (and / or a sublayer of a network layer) of the data link layer as shown in FIG. 3A. Implementation of a protocol stack structure for bridging the wireless LAN terminal 100 to which the card terminal 105 and at least one wireless LAN communication channel are connected through the bridge function of the protocol stack according to the present invention in the provided card terminal 105. As an example, specifically, Figure 4a is in accordance with the IEEE 802.11x standard with the card terminal 105 connected (and / or connected) to a wired communication network of TCP / IP (and / or UDP / IP). (Or compatible) the WLAN terminal 100 to which a WLAN communication channel including at least one WLAN and / or Bluetooth and / or WiFi and / or UWB is connected. Figure 4b shows a protocol stack structure for bridging a TCP / IP (and / or UDP / IP) wired network through a ridge functional layer, and FIG. 4b shows that the card terminal 105 is configured with TCP / IP (and / or UDP / IP). At least one wireless LAN (WLAN) and / or Bluetooth and / or Wi-Fi and / or UWB compliant with (or compatible with) the IEEE 802.11x standard when connected (and / or connected) to a wired network The protocol stack structure for bridging the WLAN terminal 100 to which the WLAN communication channel is connected to the card terminal 105 through the logical bridge function layer.

Those of ordinary skill in the art (for example, those who understand the protocol stack structure) refer to and / or modify the drawings 4a and 4b so that the card terminal 105 can read the TCP / IP. At least wireless LAN (WLAN) and / or Bluetooth and / or Wi-Fi and / or UWB compliant with (or compatible with) the IEEE 802.11x standard while connected to a network other than a wired network (and / or UDP / IP). Various implementation methods of bridging the WLAN terminal 100 connected to one or more WLAN communication channels including one or more through the logical bridge function layer may be inferred, but the present invention includes all the inferred implementation methods. It is not limited to the implementation method shown in FIG. 4A and FIG. 4B.

Also, those skilled in the art (for example, those who understand the protocol stack structure) may refer to and / or modify the drawings 4a and 4b so that the logical bridge functional layer is connected to the data link. Other equivalent protocol layers (e.g., higher layers of the datalink layer (and / or sublayer of the network layer), and / or higher layers of the transport layer (and / Or sub-layer of the session layer), and / or the upper layer (and / or sub-layer of the presentation layer) of the session layer, and the like may be inferred, but the present invention can be inferred It includes all the methods, and is not limited to the embodiment shown in Figures 4a and 4b.

Also, those skilled in the art (for example, those who understand the protocol stack structure) may refer to and / or modify the drawings 4a and 4b so that the logical bridge functional layer is located on the protocol stack. Various implementation methods (e.g., the logical bridge function layer is provided in the upper layer (and / or sub-layer of the network layer) of the wireless LAN communication means) provided in the mutually compatible protocol layer, wired communication means An implementation method provided at an upper layer (and / or a sublayer of a transport layer) of the network layer of the network layer, and / or the logical bridge function layer is an upper layer (and / or network layer) of the datalink layer of the WLAN communication means. In the sublayer of the transmission layer of the wired communication means and / or in the sublayer of the session layer. The method and / or the logical bridge function layer is provided in an upper layer (and / or a sublayer of the network layer) of the data link layer of the WLAN communication means, and an upper layer (and / or the session layer of the wired communication means). Or an implementation method provided in the sublayer of the presentation layer) or an implementation method provided in the protocol layer compatible with each other inferred from the illustrated embodiment method. It includes all the implementation methods that are, and is not limited to the implementation method shown in Figures 4a and 4b.

4A and 4B, the WLAN terminal 100 to which the card terminal 105 and at least one WLAN communication channel are connected is provided with a protocol stack corresponding to the OSI 7 layer. It is only for easily explaining the technical features of the present invention to those skilled in the art to which the present invention pertains, the WLAN terminal 100 to which the card terminal 105 and at least one WLAN communication channel are connected. ) May be provided with only a predetermined physical layer and a MAC layer, and / or may be provided with a predetermined protocol layer above the physical layer and the MAC layer, and the protocol stack provided in the WLAN terminal 100 includes the OSI. It is not necessary to satisfy the seven-layer structure, whereby the present invention is not limited.

4A and 4B, if the person skilled in the art (for example, the protocol stack structure) understands, the packet generated by the card terminal 105 (for example, A packet including a payment approval request message) is transmitted to the van server 110 through a wired network based on a protocol stack, and / or a packet generated by the van server 110 (eg, including a payment approval message). Since the packet) will be familiar with the process of receiving the card terminal 105 through the wired communication network based on the protocol stack, a detailed description thereof will be omitted for convenience.

Wireless LAN (WLAN) conforming to (or compatible with) the IEEE 802.11x standard with the card terminal 105 connected (and / or connected) to a wired communication network of TCP / IP (and / or UDP / IP); A wireless LAN terminal 100 connected to a wireless LAN communication channel including at least one of Bluetooth and / or Wi-Fi and / or UWB is connected to the TCP / IP (and / or UDP / IP) through the logical bridge function layer. Referring to FIG. 4A, which illustrates a protocol stack structure for bridging a wired communication network, TCP / IP (and / or UDP /) to which the card terminal 105 is connected (and / or communicating) in the WLAN terminal 100. A packet to be transmitted to a server (and / or terminal) on a wired communication network of IP) is generated in an application layer provided in the WLAN terminal 100 and is provided to a lower layer of the next step while adding predetermined packet information. Repeat the program provided in the WLAN terminal 100 A physical layer below the MAC layer of the protocol stack is reached.

Thereafter, the packet is provided to the card terminal 105 through a WLAN communication channel including a physical layer provided in the WLAN terminal 100 and a WLAN communication side physical layer provided in the card terminal 105. It is received at the WLAN communication side physical layer and flows into the logical bridge function layer via the WLAN communication side MAC layer provided in the card terminal 105.

The logical bridge function layer then bridges the incoming packet to a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 connects (and / or communicates), and / Or bridge the bridge to use in the application program provided in the card terminal 105.

If the check result confirms that the packet is to be bridged to a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 is connected (and / or connected), the logical bridge function layer is implemented. And further performing the packet structure conversion process according to the method, and providing the packet to the network layer and the MAC layer of the TCP / IP (and / or UDP / IP) wired network side protocol stack. The physical layer of the protocol stack on the IP (and / or UDP / IP) wired network side and the network components (eg, hub and / or router, etc.) on the TCP / IP (and / or UDP / IP) wired network Received to the physical layer on the protocol stack provided in the server (and / or terminal) on the TCP / IP (and / or UDP / IP) wired communication network via a wired communication interval including the layer.

The packet is then sent to a MAC layer, datalink layer, network layer, transport layer, session layer and presentation on a protocol stack provided in a server (and / or terminal) on the TCP / IP (and / or UDP / IP) wired network. The application layer is provided to the application layer via the presentation layer, and the application layer performs data processing corresponding to the packet.

In addition, transmission from the server (and / or terminal) on the wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 is connected (and / or communication connection) to the WLAN terminal 100 The packet to be generated is generated in an application layer provided in the server (and / or terminal), and the predetermined packet information is added to the next layer to repeat the process provided to the lower layer, thereby providing the server (and / or terminal). A packet arrives at the physical layer of the protocol stack, and then the packet is transmitted to a server (and / or terminal) on the TCP / IP (and / or UDP / IP) wired network and the TCP / IP (and / or UDP / IP) wired network. Wireless LAN communication provided to the card terminal 105 by being received at the physical layer of the protocol stack of the TCP / IP (and / or UDP / IP) wired communication network side provided to the card terminal 105 via a network component on the network. It enters the logical bridge function layer via the side MAC layer.

Thereafter, the logical bridge function layer bridges the incoming packet to the WLAN terminal 100 to which the WLAN terminal 100 is connected to the card terminal 105, and / or is provided to the card terminal 105. Make sure to bridge it for use by your application.

If it is confirmed that the packet is bridged to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected, the logical bridge function layer further performs the packet structure conversion process according to an implementation method. After performing, the WLAN terminal 100 via the WLAN communication channel including the physical layer of the protocol stack provided in the WLAN communication side protocol stack and the packet stack in the WLAN terminal 100. It is received at the physical layer on the protocol stack provided in.

Thereafter, the packet is provided to an application layer through a MAC layer, a data link layer, a network layer, a transport layer, a session layer, and a presentation layer on a protocol stack provided in the WLAN terminal 100. Perform data processing corresponding to the packet.

Wireless LAN (WLAN) conforming to (or compatible with) the IEEE 802.11x standard with the card terminal 105 connected (and / or connected) to a wired communication network of TCP / IP (and / or UDP / IP); And / or a protocol stack structure for bridging a wireless LAN terminal 100 connected to a wireless LAN communication channel including at least one of Bluetooth and / or Wi-Fi and / or UWB to the card terminal 105 through the logical bridge function layer. Referring to FIG. 4B, a server (and / or a server) on a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 is connected (and / or communicated) in the WLAN terminal 100. Packet is transmitted to the WLAN terminal 100 by repeating the process of being generated in an application layer included in the WLAN terminal 100 and providing predetermined packet information to a lower layer of a next step. MAC layer of the protocol stack After reaching a lower physical layer, the packet is transmitted through a WLAN communication channel including a physical layer provided in the WLAN terminal 100 and a WLAN communication side physical layer provided in the card terminal 105. It is received by the wireless LAN communication side physical layer provided in the card terminal 105 and flows into the logical bridge function layer via the wireless LAN communication side MAC layer provided in the card terminal 105.

The logical bridge function layer then bridges the incoming packet to a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 connects (and / or communicates). Or check whether the bridge to use in the application program provided in the card terminal 105.

If it is confirmed that the packet is bridged to the card terminal 105, the logical bridge function layer further performs the packet structure conversion process according to an implementation method, and then transfers the packet to the card terminal 105. The application layer is provided to an application layer through a transport layer, a session layer, and a presentation layer on the protocol stack, and the application layer performs data processing corresponding to the packet.

In addition, the packet to be transmitted from the card terminal 105 to the WLAN terminal 100 is generated in the application layer provided in the card terminal 105, and the predetermined packet information is added to the lower layer of the next step. The process is repeated to flow into the logical bridge function layer.

Thereafter, the logical bridge function layer bridges the incoming packet to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected, and / or the card terminal 105 accesses. Make sure you bridge to the wired network of TCP / IP (and / or UDP / IP).

If it is confirmed that the packet is bridged to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected, the logical bridge function layer further performs the packet structure conversion process according to an implementation method. After performing the packet, the packet is transmitted to the WLAN terminal 100 through a WLAN communication channel including a physical layer of the protocol stack of the WLAN communication side and a protocol stack provided in the WLAN terminal 100. Received to the physical layer on the provided protocol stack.

Thereafter, the packet is provided to an application layer through a MAC layer, a data link layer, a network layer, a transport layer, a session layer, and a presentation layer on a protocol stack provided in the WLAN terminal 100. Perform data processing corresponding to the packet.

5 is a diagram illustrating a process of loading a logical bridge function layer for providing a bridge function of a communication protocol stack to a card terminal 105 according to an embodiment of the present invention.

In more detail, FIG. 5 shows a bridge function of the communication protocol stack according to the present invention (eg, including a logical bridge function layer) during the system booting process in the card terminal 105 shown in FIG. A preferred embodiment of driving a protocol processing routine to be loaded into the control unit 205 provided in the card terminal 105, and a person of ordinary skill in the art to which the present invention belongs, While various implementations may be inferred by referring and / or modifying the card terminal 105 to load a logical bridge function layer that provides a bridge function of a communication protocol stack, the present invention encompasses all inferred implementation methods. The present invention is not limited to the implementation method shown in FIG.

For example, those skilled in the art to which the present invention pertains may refer to and / or modify this drawing 5 to integrate a predetermined communication protocol stack after the card terminal 105 shown in FIG. 2 is system booted. A method of loading a protocol processing routine (eg, including a logical bridge function layer) equipped with a bridge function of the communication protocol stack according to the present invention to the control unit 205 provided in the card terminal 105 via a processing command. It may be inferred, but the present invention includes all the implementation methods inferred above, and is not limited to the implementation method shown in FIG.

Referring to FIG. 5, while a predetermined power is supplied to the card terminal 105 to perform a system booting procedure (500), the card terminal 105 is a logical bridge function layer according to the present invention during the system booting. A protocol processing routine including a is loaded into the controller 205 (505).

Thereafter, the card terminal 105 extracts communication parameter information corresponding to a predetermined wired communication network from the memory unit 255 (510), and includes it in the loaded protocol processing routine based on the extracted communication parameter information. A connection (and / or communication connection) to the wired communication network is attempted through the logical bridge function layer (515).

If the connection (and / or communication connection) attempt to the communication network is successful (520), the card terminal 105 is at least one WLAN terminal 100 and at least one WLAN communication channel (e.g., WLAN). A communication channel, a wireless LAN communication channel, etc.) is periodically checked whether it is connected (525).

If at least one WLAN terminal 100 and at least one WLAN communication channel are not connected (530), the card terminal 105 performs a predetermined electronic payment processing function provided in the card terminal 105. It is checked whether or not (535).

According to an exemplary embodiment of the present invention, the electronic payment processing function provided in the card terminal 105 may allow the user of the card terminal 105 to input the electronic payment processing execution command, thereby allowing the electronic terminal to accept the electronic payment. It is desirable to initiate treatment procedures.

According to another exemplary embodiment of the present invention, the electronic payment processing function provided in the card terminal 105 may include a predetermined customer-owned card (eg, an MS card provided with at least one or more payment means, and / or a contact IC card). It is preferable to start by reading predetermined card information (and / or payment means information) from the and / or contactless IC card through the card reader provided in the card terminal 105.

If a predetermined electronic payment processing function is not performed in the card terminal 105 (for example, at least one wireless LAN terminal 100 and a wireless LAN communication channel are not connected, and the electronic device provided in the card terminal 105 is provided). If the payment processing function is also not performed) (540), the card terminal 105 is a process of confirming that at least one or more of the wireless LAN terminal 100 and the wireless LAN communication channel is connected to the electronic device provided in the card terminal 105 The process of confirming that the payment processing function is performed is periodically repeated.

If a predetermined electronic payment processing function is performed in the card terminal 105 (540), the card terminal 105 performs the electronic payment processing procedure, and whether a predetermined packet corresponding to the electronic payment processing is generated. Check whether or not (545).

According to an exemplary embodiment of the present invention, a predetermined packet corresponding to the electronic payment processing may include a payment approval request text generated by the card terminal 105 for the electronic payment processing through a payment communication network including the wired communication network. It is preferable to include a communication packet transmitted to the predetermined payment server 115 via the van.

According to another exemplary embodiment of the present invention, when the card terminal 105 provides an electronic payment processing function of a shadow account method (for example, payment processing is performed in the card terminal 105, such as a prepaid card payment). Is provided in an offline state and is provided with an electronic payment process in which the payment processing result is periodically transmitted through a van to a predetermined payment server 115 through a payment communication network including the wired communication network). In the process of performing the payment processing function, a predetermined packet may not be generated, thereby the present invention is not limited.

If a packet corresponding to the electronic payment processing is not generated until all of the electronic payment processing function processing procedures are performed (550), the card terminal 105 completes the execution of the electronic payment processing procedure (555), The process of checking whether the at least one WLAN terminal 100 and the WLAN communication channel are also connected and the process of confirming that the electronic payment processing function provided in the card terminal 105 is performed are periodically repeated.

If a packet corresponding to the electronic payment processing is generated until all of the electronic payment processing procedures are performed (550), the card terminal 105 is generated in response to the electronic payment processing through the logical bridge function layer. Waiting for the packet to process the bridge function of the protocol stack according to the present invention (560), the bridge function of the protocol stack according to the present invention is initiated by the packet entering the logical bridge function layer on the protocol stack. A preferred bridging process for a packet generated corresponding to the electronic payment process will be described in detail with reference to FIG.

On the other hand, if the card terminal 105 is determined that at least one WLAN terminal 100 and at least one WLAN communication channel are connected (530), the card terminal 105 is a bridge function of the protocol stack according to the present invention. In order to provide an address, an address assignment procedure for the WLAN terminal 100 to which the WLAN communication channel is connected is performed (565).

According to an embodiment of the present invention, the address assignment procedure for the WLAN terminal 100 may include a predetermined address obtained in correspondence with the address processing information in the WLAN terminal 100 to which the WLAN communication channel is connected. It is desirable to include a procedure for direct assignment.

According to another exemplary embodiment of the present invention, the address assignment procedure for the WLAN terminal 100 may include: a predetermined address obtained in correspondence with the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected; It is desirable to include a procedure for logically allocating a.

If the address allocation to the WLAN terminal 100 is completed (570), the card terminal 105 is a protocol stack according to the present invention for the packet transmitted and received in the WLAN communication channel through the logical bridge function layer Waiting for the bridge function processing of the (575), the bridge function of the protocol stack according to the present invention is initiated by the packet flows into the logical bridge function layer on the protocol stack, the packet is transmitted and received on the WLAN communication channel Preferred bridging process will be described in detail with reference to FIGS. 6A and 6B shown below.

6A and 6B illustrate an operation process of a card terminal 105 that provides a bridge function for a packet transmitted / received through a wireless LAN communication channel connected to a card terminal 105 through a logical bridge function layer according to an embodiment of the present invention. Figure is shown.

6A and 6B illustrate a logical bridge function layer providing a bridge function of a protocol stack according to the present invention through a process as shown in FIG. 5 to the card terminal 105 shown in FIG. FIG. 6A illustrates a preferred method for providing a bridge function of a protocol stack according to the present invention with respect to packets transmitted and received through at least one wireless LAN communication channel connected to the card terminal 105. Specifically, FIG. A method for bridging a packet introduced into the logical bridge function layer through a LAN communication channel on a protocol stack through a wired communication network to which the card terminal 105 is connected (and / or connected), FIG. At least one packet connected to the card terminal 105 is introduced into the logical bridge function layer through a communication network. An embodiment of the present invention relates to a method of bridging a protocol stack to a WLAN communication channel that should receive the packet among one or more WLAN communication channels.

Those skilled in the art to which the present invention pertains, the packet is transmitted and received in the WLAN communication channel connected to the card terminal 105 through the logical bridge functional layer by referring to and / or modified in the present Figure 6a and 6b. Various implementation methods for providing a bridge function for the present invention may be inferred, but the present invention includes all the implementation methods inferred above and is not limited to the implementation methods shown in FIGS. 6A and 6B.

Referring to FIG. 6A, when the logical bridge function layer providing the bridge function of the protocol stack according to the present invention is loaded into the card terminal 105 through the same process as that of FIG. 5, the card terminal 105 is connected to the wireless terminal. It is determined whether a predetermined packet is received from the WLAN terminal 100 through the LAN side physical layer and the MAC layer and flows into the logical bridge function layer (600a).

If the packet received from the WLAN terminal 100 flows into the logical bridge function layer (605a), the card terminal 105 includes at least one packet included in the incoming packet through the logical bridge function layer. By reading information (e.g., packet identifier, and / or packet sender address, and / or packet receiver address, etc.), the card terminal 105 connects (and / or packets) to the logical bridge function layer. It is checked whether or not to bridge the wired communication network) (610a).

If the packet flowing into the logical bridge functional layer is not bridged to the wired network on the protocol stack (615a), the card terminal 105 passes the packet through the logical bridge functional layer to an upper protocol layer of the protocol stack. For example, the card terminal 105 receives the packet and provides the packet to the application program (and / or protocol layer corresponding to the electronic payment processing terminal program) to be processed (620a), whereby the packet is transmitted to the card terminal ( 105 is provided to an application program (and / or an electronic payment processing terminal program) to receive and process the packet, and then the card terminal 105 (e.g., an application program to receive and process the packet (and / or electronic). The payment processing terminal program) performs a predetermined data processing procedure for the data included in the packet (625a).

According to an embodiment of the present invention, the data included in the packet may include data for requesting the WLAN terminal 100 to connect a predetermined WLAN communication channel to the card terminal 105. In this case, The application program (and / or the electronic payment processing terminal program) that receives the packet performs a data processing procedure for connecting the WLAN terminal 100 and a predetermined WLAN communication channel.

In addition, the data included in the packet is a wired communication network to which the card terminal 105 is connected (and / or communication connection) by the WLAN terminal 100 to which the WLAN communication channel is connected through the card terminal 105. It may include data for requesting an address assignment for accessing (and / or communication connection), in this case, the application program (and / or electronic payment processing terminal program) receiving the packet is the WLAN terminal 100 Performs a data processing procedure for allocation of the requested address.

On the other hand, if a packet introduced into the logical bridge functional layer is bridged to the wired communication network on a protocol stack (615a), the card terminal 105 checks whether or not to convert the packet structure for the bridge target packet through the logical bridge functional layer. (630a).

If the check result indicates that the packet structure of the bridge target packet needs to be converted (635a), the card terminal 105 converts the bridge target packet into a packet structure that can be transmitted to the wired communication network through the logical bridge function layer. (640a).

On the other hand, if it is determined that the packet structure of the bridge target packet is not changed (635a), and / or the bridge target packet is converted into a packet structure that can be transmitted to the wired communication network (640a), the card terminal 105 ) Provides the packet via the logical bridge function layer to the wired network side MAC layer and the physical layer to which the card terminal 105 connects (and / or communicates) (645a), thereby bridging the packet on a protocol stack. To the wired communication network.

Thereafter, the wired communication network is transmitted from the card terminal 105 (for example, the protocol stack provided in the card terminal 105 by being transmitted from the WLAN terminal 100 to which the card terminal 105 and the wireless LAN communication channel are connected). The packet transmitted to the wired communication network through the bridge function of the server is transmitted to the transmission target server (and / or terminal) (650a), and the server (and / or the terminal) receiving the packet has an information processing function corresponding to the packet. Generate a predetermined packet including the information processing result (655a), and transmit the packet generated including the information processing result to the card terminal 105 through the wired communication network (660a). The card terminal 105 receiving the packet provides the packet to the WLAN terminal 100 through a bridge function of the protocol stack as shown in FIG.

Referring to FIG. 6B, when the logical bridge function layer providing the bridge function of the protocol stack according to the present invention is loaded into the card terminal 105 through the process as shown in FIG. 5, the card terminal 105 is connected to the wired line. It is checked whether a predetermined packet is received from a server (and / or a terminal) on the wired communication network through the communication network side physical layer and the MAC layer and flows into the logical bridge function layer (600b).

If the packet received from the WLAN terminal 100 flows into the logical bridge function layer (605b), the card terminal 105 includes at least one packet included in the incoming packet through the logical bridge function layer. By reading the information (e.g., packet identifier, and / or packet sender address, and / or packet receiver address, etc.), a wireless LAN communication channel connected to the card terminal 105 for the packet introduced into the logical bridge function layer It is checked whether or not to bridge (610b).

If the packet introduced into the logical bridge function layer is not bridged to the WLAN communication channel on the protocol stack (615b), the card terminal 105 passes the packet through the logical bridge function layer to a higher protocol of the protocol stack. A layer (e.g., a protocol layer corresponding to an application program (and / or a terminal program for electronic payment processing) to receive and process the packet at the card terminal 105), thereby providing the packet to the card. The terminal 105 is provided to an application program (and / or a terminal program for electronic payment processing) to receive and process the packet, and then the card terminal 105 (eg, an application program to receive and process the packet). Or electronic payment processing terminal program)) performs a predetermined data processing procedure for the data included in the packet (625b).

According to an embodiment of the present invention, the data contained in the packet is sent from the card terminal 105 to the payment server 115 via the van via the wired network to perform the electronic payment processing shown in FIG. Preferably, the payment includes a payment approval message corresponding to the full payment approval request message, and the card terminal 105 having received the payment approval message transmits the payment approval result data included in the payment approval message to the card terminal 105. Perform a data processing procedure of outputting to a screen output device provided in the) and / or printing and printing on a predetermined receipt.

On the other hand, if a packet introduced into the logical bridge function layer is bridged to the WLAN communication channel on a protocol stack (615b), the card terminal 105 includes at least one packet information included in the packet through the logical bridge function layer. (E.g., packet identifier, and / or packet sender address, and / or packet receiver address, etc.) to receive and process the packet among at least one wireless LAN communication channel connected to the card terminal 105. Check the wireless LAN communication channel (630b).

Thereafter, the card terminal 105 determines whether to convert the packet structure for the bridge target packet into a packet structure that can be transmitted to the WLAN communication channel through the logical bridge function layer (635b).

If the check result indicates that the packet structure of the bridge target packet needs to be converted (640b), the card terminal 105 has a packet structure capable of transmitting the bridge target packet to the WLAN communication channel through the logical bridge function layer. 645b.

On the other hand, if it is determined that the packet structure of the bridge target packet is not converted (640b), and / or the bridge target packet is converted into a packet structure that can be transmitted through the WLAN communication channel (645b), the card terminal 105 transmits the packet to the WLAN communication channel side MAC layer and the physical layer to which the card terminal 105 connects (and / or communicates) through the logical bridge function layer (650b). It is bridged on a protocol stack and transmitted to the WLAN communication channel.

7 is a diagram illustrating an operation of a card terminal 105 that provides a bridge function for a packet generated in the card terminal 105 through a logical bridge function layer according to an embodiment of the present invention.

In more detail, FIG. 7 illustrates that the card terminal 105 shown in FIG. 2 is loaded with a logical bridge function layer providing a bridge function of a protocol stack according to the present invention through the same process as in FIG. A preferred method of providing a bridge function of a protocol stack according to the present invention for a packet generated while performing a predetermined electronic payment processing function (and / or a unique function of the card terminal 105) included in the terminal 105. As shown in the drawings, a person having ordinary skill in the art to which the present invention pertains may refer to and / or modify the present invention and transmit and receive a wireless communication channel connected to a card terminal 105 through the logical bridge function layer. Although various implementation methods may be inferred to provide a bridge function for a packet to be made, the present invention includes all implementation methods inferred from the above. Side is not limited to the exemplary method shown in Figure 7.

Referring to FIG. 7, when the logical bridge function layer providing the bridge function of the protocol stack according to the present invention is loaded into the card terminal 105 through the same process as that of FIG. 5, the card terminal 105 performs the card. In operation 700, it is determined whether a packet generated corresponding to a predetermined electronic payment processing function (and / or a unique function of the card terminal 105) provided in the terminal 105 flows into the logical bridge function layer.

If a packet generated corresponding to a predetermined electronic payment processing function (and / or a unique function of the card terminal 105) included in the card terminal 105 flows into the logical bridge function layer (705), the card terminal 105 reads at least one or more packet information (eg, packet identifier, and / or packet sender address, and / or packet receiver address, etc.) included in the incoming packet via the logical bridge function layer; In operation 710, it is determined whether the packet introduced into the logical bridge function layer is bridged into the wireless LAN communication channel connected to the card terminal 105.

According to an embodiment of the present invention, a packet approval request generated in response to the electronic payment processing function is transmitted from the card terminal 105 to the predetermined payment server 115 via the wired communication network and the van server 110. It is preferable to include the full text.

If the packet flowing into the logical bridge function layer is not bridged to the WLAN communication channel on the protocol stack (715), the card terminal 105 passes the packet through the logical bridge function layer to the card terminal 105. This connection (and / or communication connection) is provided to the wired network side MAC layer and the physical layer (720), so that the packet is bridged on the protocol stack and transmitted to the wired network.

According to an embodiment of the present invention, a packet provided to the wired communication network side MAC layer and the physical layer and transmitted to the wired communication network is transferred from the card terminal 105 to the predetermined payment server via the wired communication network and the van server 110. It is preferable to include the full payment approval request to be sent to (115).

Thereafter, the wired communication network transmits the packet transmitted from the card terminal 105 to a predetermined payment server 115 to perform the electronic payment processing via the van server 110 (725), and the card terminal ( Receiving the packet transmitted from 105, the payment server 115 performs an electronic payment processing procedure corresponding to the payment approval request message contained in the packet, and the packet corresponding to the result of the electronic payment processing (for example, payment approval message) After generating the packet (730), and transmits the packet generated corresponding to the electronic payment processing result via the van server 110 to the card terminal 105 via a wired communication network (735), The card terminal 105 receiving the packet completes the electronic payment processing procedure through the bridge function of the protocol stack as shown in FIG. 6B.

On the other hand, if the packet introduced into the logical bridge functional layer is bridged to the WLAN communication channel on the protocol stack (715), the card terminal 105 is the card terminal 105 to the packet through the logical bridge functional layer Among at least one WLAN communication channel connected to the card terminal 105 by reading at least one packet information included (eg, packet identifier, and / or packet sender address, and / or packet receiver address). In operation 740, a predetermined WLAN communication channel to receive and process the packet is identified.

According to an embodiment of the present invention, a packet to be bridged and transmitted to the WLAN communication channel transmits a response (and / or a WLAN communication channel connection result) to the WLAN communication channel connection request requested from the WLAN terminal 100. Preferably, the wireless LAN terminal 100 receiving the packet is connected to the wired communication network to which the card terminal 105 connects (and / or communicates) through the wireless LAN communication channel. Or further performing an address assignment procedure for communication connection, and / or using the bridge function of the protocol stack provided in the card terminal 105 through the wireless LAN communication channel. And / or communication connection) A predetermined communication channel may be connected to at least one server (and / or terminal) provided on the wired communication network.

In addition, a packet to be transmitted by bridging to the WLAN communication channel is connected to the card terminal 105 by the WLAN terminal 100 to which the WLAN communication channel is connected through the card terminal 105 (and / or communication connection). And a response (and / or address assignment information, and / or address assignment result) corresponding to the requested address assignment request to access (and / or connect to) the wired communication network. The assigned wireless LAN terminal 100 uses a bridge function of a protocol stack provided in the card terminal 105 through the wireless LAN communication channel to which the card terminal 105 is connected (and / or communicated). A predetermined communication channel may be connected to at least one server (and / or terminal) provided on the communication network.

Thereafter, the card terminal 105 determines whether to convert the packet structure of the bridge target packet into a packet structure that can be transmitted to the WLAN communication channel through the logical bridge function layer (745).

If the check result indicates that the packet structure of the bridge target packet needs to be converted (750), the card terminal 105 has a packet structure capable of transmitting the bridge target packet to the WLAN communication channel through the logical bridge function layer. 755.

On the other hand, if it is determined that the packet structure of the bridge target packet is not converted (750), and / or the bridge target packet is converted into a packet structure that can be transmitted to the WLAN communication channel (755), the card terminal 105 transmits the packet to the WLAN communication channel side MAC layer and the physical layer to which the card terminal 105 connects (and / or communicates) through the logical bridge function layer (760). It is bridged on a protocol stack and transmitted to the WLAN communication channel.

8 is a diagram illustrating a network connection configuration of a card terminal 105 performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention.

In more detail, FIG. 8 shows a card terminal 105 having a bridge function of a communication protocol stack connected to (and / or connected to) a payment communication network including at least one wired communication network, and the communication protocol stack For the network connection configuration of the card terminal 105 performing a virtual WLAN AP function by bridging the card terminal 105 and at least one WLAN terminal 100 in a short distance to the wired communication network through a bridge function of. As those skilled in the art to which the present invention pertains, a card terminal 105 having a bridge function of a communication protocol stack may be connected to at least one wired communication network by referring to and / or modifying this drawing. At least one WLAN terminal 100 located at a short distance from the card terminal 105 in the state of the bridge of the communication protocol stack Through the function would be able to infer a variety of exemplary ways to bridge the wire network, the present invention includes all embodiments in which the inference method, not limited to the exemplary method shown in the figure 8.

The wired communication network to which the card terminal 105 having a bridge function of the communication protocol stack is connected operates based on Transmission Control Protocol / Internet Protocol (TCP / IP) and / or User Datagram Protocol / Internet Protocol (UDP / IP). And an IP-based wired communication network, whereby the card terminal 105 transmits and receives a payment approval request message and / or payment approval message that is transmitted and received through a payment communication network including the wired communication network. And / or via a UDP / IP) communication protocol.

However, the wired communication network to which the card terminal 105 with a bridge function of the communication protocol stack according to the present invention is connected is not limited to the above-described TCP / IP (and / or UDP / IP) based wired communication network. Those skilled in the art to which the present invention pertains, the wired communication network to which the card terminal 105 with the bridge function of the communication protocol stack is connected includes all wired communication networks conventionally and commercially available in the future.

That is, this figure 8 is only for efficiently explaining the technical features of the card terminal 105 having a bridge function of the communication protocol stack according to the present invention to those skilled in the art to which the present invention belongs, It is not limited by this.

According to the present invention, a card terminal 105 having a bridge function of the communication protocol stack is connected to at least one or more wired communication networks and / or predetermined communication with at least one or more servers (and / or terminals) via the wired communication network. And a wired communication means including at least one wired communication means for connecting a channel, and at least one wireless LAN terminal 100 and at least one wireless device in a short range with the card terminal 105. Characterized in that it comprises a function to communicate via the LAN communication means.

According to an embodiment of the present invention, the wired communication means for connecting (and / or communicating) the card terminal 105 to a wired communication network connects the card terminal 105 to TCP / IP (and / or USP / IP). It is preferable to include an Internet communication module for connecting to (and / or communication connection) based wired communication network, whereby the card terminal 105 is at least one server (and / or terminal) provided on the wired communication network And a predetermined communication channel are connected.

According to the present invention, a server (and / or terminal) on the wired communication network to which the card terminal 105 and a predetermined communication channel are connected is provided to a value added network (VAN) company corresponding to the card terminal 105. It is characterized in that it comprises a predetermined van server 110 provided, whereby the card terminal 105 performs an electronic payment procedure using at least one customer-owned card.

According to an embodiment of the present invention, the WLAN communication means for connecting the card terminal 105 and at least one WLAN terminal 100 in a short distance to a WLAN communication standard may conform to an IEEE 802.11x standard (or Compatible) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, HIPERLAN / 2, etc.) Wireless Local Area Network (WLAN), Bluetooth, WiFi, Ultra Wide Band system At least one WLAN communication means such as) is preferably made, such that a predetermined WLAN communication channel corresponding to the WLAN communication means between the WLAN terminal 100 and the card terminal 105 Connected.

According to the present invention, a communication channel connected between the card terminal 105 and a server (and / or terminal) provided on a wired communication network connects (and / or communicates) the card terminal 105 to the wired communication network. Connection and operation through a communication protocol corresponding to a wired communication means for connecting; and also a wireless LAN communication channel connecting the card terminal 105 and at least one wireless LAN terminal 100 located in a short distance. Is connected and operated through a communication protocol corresponding to the wireless LAN communication means.

The communication protocol includes a format and procedure necessary for at least two communication systems (e.g., a server and / or a device having a communication function) to transmit and receive predetermined information (or data) through a predetermined communication network and / or communication means; As the order is defined, the communication protocol is composed of a plurality of layers (Layer) for performing each function, such as physical circuit control, data connection control, packet relay transmission or file transfer control, In the communication protocol of each layer is made up of a structure that interlocks up and down.

Here, detailed technical features and functions for each layer of the communication protocol are defined in each communication protocol standard, and the present invention does not violate the communication protocol standard.

According to an embodiment of the present invention, the communication protocol configures and maintains a physical link between communication systems through a predetermined communication network and / or communication means, and transmits data bits through a communication line corresponding to the physical link. A physical layer that defines the mechanical, electrical, functional, and procedural characteristics for establishing and / or maintaining and / or breaking a circuit connection for direct transmission, and a MAC that controls access to the physical layer. Access Control) layer, preferably the MAC layer controls the physical layer to address the physical link (Addressing), network topology, circuit usage rules, error detection, frame forwarding and Subl of the Datalink Layer, which defines functions for data transfer reliability such as flow control ayer).

According to the present invention, the card terminal 105 having a bridge function of the communication protocol stack is configured to perform at least one wireless LAN communication means and the wired communication means on a protocol stack through the bridge function of the communication protocol stack according to the present invention. It is characterized by the bridge.

According to a preferred embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. At least one protocol layer of at least one of a physical layer on the protocol stack and an upper layer of the MAC layer, and at least one protocol layer of a physical layer on the protocol stack corresponding to the WLAN communication means and an upper layer of the MAC layer It is preferable to bridge

According to another exemplary embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. It is possible to directly bridge (eg, bridge in the form of firmware) the MAC layer above the physical layer on the protocol stack and the MAC layer above the physical layer on the protocol stack corresponding to the WLAN communication means. The invention is not limited.

According to a preferred embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. It is preferable to bridge at least one protocol layer of the same grade among at least one protocol layer existing on the protocol stack and at least one protocol layer existing on the protocol stack corresponding to the WLAN communication means.

For example, the communication protocol stack corresponding to the wired communication means provided in the card terminal 105 satisfies Open Systems Interconnection (OSI) layer 7, and the communication protocol stack corresponding to the WLAN communication means is also OSI 7 If the layer is satisfied, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is a communication protocol corresponding to the wired communication means. Bridge the network layer of the stack and the communication protocol corresponding to the wireless LAN communication means, and / or the communication layer corresponding to the transport layer of the communication protocol stack corresponding to the wired communication means and the wireless LAN communication means. Bridge the transport layer of the stack and / or correspond to the wired communication means Bridge the session layer of the new protocol stack and the communication layer of the communication protocol stack corresponding to the wireless LAN communication means, and / or the presentation layer of the communication protocol stack corresponding to the wired communication means and the wireless LAN communication means. It is desirable to bridge the presentation layer of the communication protocol stack.

According to another exemplary embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 corresponds to the wired communication means. It is preferable to bridge at least one protocol layer existing on the protocol stack and at least one protocol layer existing on the protocol stack corresponding to the WLAN communication means, the protocol layers compatible with each other on the protocol layer. .

According to a preferred embodiment of the present invention, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is connected to the wireless LAN communication means. If a packet generated (and / or processed) on a corresponding protocol stack and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means are not compatible with each other, the bridge function may be used. Converting a packet generated (and / or processed) on a protocol stack corresponding to a LAN communication means into a packet structure processable (or compatible) on a protocol stack corresponding to the wired communication means, and / or to the wired communication means. A packet generated (and / or processed) on a corresponding protocol stack corresponds to the WLAN communication means. It is made by a function of converting a processed (or compatible) packet structure on the call stack, further comprising preferred.

According to an embodiment of the present invention, a packet generated (and / or processed) on a protocol stack corresponding to the WLAN communication means and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means In order to be compatible with each other, the bridge function (at least one WLAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is a protocol stack corresponding to the WLAN communication means. Read out the predetermined packet data by reading a packet encapsulating with a packet structure defined in the above, and encapsulate the read packet data into a packet structure defined in a protocol stack corresponding to the wired communication means, and / or A predetermined packet is read by encapsulating a packet encapsulated in a packet structure defined in a protocol stack corresponding to the wired communication means. By reading kit data and encapsulating the read packet data into a packet structure defined in a protocol stack corresponding to the WLAN communication means, thereby generating (and / or processing) on a protocol stack corresponding to the WLAN communication means. It is desirable to make the packets compatible with the packets generated (and / or processed) on the protocol stack corresponding to the wired communication means.

If the read packet data sizes are not compatible with each other, a bridge function (at least one WLAN communication means and a wired communication means) of the communication protocol stack included in the card terminal 105 may be used. The read packet data in order to be compatible with a packet generated (and / or processed) on a protocol stack corresponding to the WLAN communication means and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means. It is preferable to further comprise a function of buffering (Buffering) to make the read packet data size compatible.

According to another exemplary embodiment of the present invention, a packet generated (and / or processed) on a protocol stack corresponding to the wireless LAN communication means and a packet generated (and / or processed) on a protocol stack corresponding to the wired communication means In order to be compatible with each other, the bridge function (at least one of the wireless LAN communication means and the wired communication means) of the communication protocol stack provided in the card terminal 105 is a protocol corresponding to the wireless LAN communication means. Add (or insert) packet information that can be transmitted to a wired communication network through a wired communication means provided in the card terminal 105 to a packet generated (and / or processed) in a packet structure defined in a stack, and / or Among the packet information included in the packet generated (and / or processed) in the packet structure defined in the protocol stack corresponding to the wired communication means By removing (or erasing) packet information that is not compatible with the protocol stack corresponding to the wireless LAN communication means, the packets generated (and / or processed) on the protocol stack corresponding to the wireless LAN communication means and the wired communication means It is desirable to interoperate packets generated (and / or processed) on the corresponding protocol stack.

According to an embodiment of the present invention, when the card terminal 105 is connected to a wired communication network corresponding to a TCP / IP (and / or USP / IP) based wired communication network (and / or a communication connection), the card The terminal 105 connects the TCP / IP (and / or USP) with at least one WLAN terminal 100 connected with the card terminal 105 through a predetermined WLAN through a bridge function of a communication protocol stack according to the present invention. / IP) performs a virtual WLAN AP function (for example, the function of allowing the WLAN terminal 100 to recognize the WLAN AP) to access (and / or communication connection) based wired communication network.

According to the exemplary embodiment of the present invention, the card terminal 105 preferably includes at least one affiliated terminal such as a CAT (Credit Authorization Terminal) and / or a Point of Sales (POS) wireless LAN terminal 100. In this case, the affiliated store terminal is connected to a predetermined wired communication network through a predetermined wired communication means (eg, a wired communication means for connecting the affiliated store terminal to a TCP / IP (and / or UDP / IP) based wired communication network). And / or a communication connection), a function of connecting a WLAN communication channel with at least one WLAN terminal 100 located at a short distance of the affiliated store terminal through at least one WLAN communication means, and Bridge the wireless LAN terminal 100 connected to the wireless LAN communication channel to a wired communication network to which the affiliated store terminal is connected (and / or connected) through a bridge function of a communication protocol stack. It is preferable to comprise the function to do.

According to the exemplary embodiment of the present invention, the WLAN terminal 100 to which the card terminal 105 and a predetermined WLAN communication channel are connected includes a WLAN (WLAN) complying with (or compatible with) the IEEE 802.11x standard, A client terminal such as a personal computer (PC) and / or a laptop connected to a wireless LAN communication means provided in the card terminal 105 and a predetermined wireless LAN communication standard through a wireless LAN communication means such as Bluetooth, Wi-Fi, or UWB. It is preferable to comprise at least one or more.

In addition, the wireless LAN terminal 100 to which the card terminal 105 and a predetermined wireless LAN communication channel is connected may be connected to (WLAN), Bluetooth, Wi-Fi, UWB, etc. according to the IEEE 802.11x standard. A portable terminal such as a PDA (Personal Digital Assistant) and / or a Portable Media Player (PMP) connected to a wireless LAN communication means provided in the card terminal 105 and a predetermined wireless LAN communication standard through the same wireless LAN communication means. It is preferable to comprise at least one or more.

In addition, the wireless LAN terminal 100 to which the card terminal 105 and a predetermined wireless LAN communication channel is connected, the PCS (Personal Communication System), GSM (Global System for Mobile) terminal operating based on the CDMA stack, smart WLAN communication such as WLAN, Bluetooth, Wi-Fi, UWB, etc. conforming to (or compatible with) the IEEE 802.11x standard to a mobile communication terminal including at least one of a smart phone, a WCDMA terminal, an HSDPA terminal, and the like. It is preferable that the wireless LAN communication means provided in the card terminal 105 and at least one wireless terminal for connecting to a predetermined wireless LAN communication standard by means.

In addition, the wireless LAN terminal 100 to which the card terminal 105 and a predetermined wireless LAN communication channel is connected may be connected to (WLAN), Bluetooth, Wi-Fi, UWB, etc. according to the IEEE 802.11x standard. At least a dedicated WLAN terminal 100 (for example, an IP phone, etc.) connected to the WLAN communication means provided in the card terminal 105 and the WLAN communication standard supporting the VoIP communication protocol through the same WLAN communication means. It is preferable to include one or more.

According to one embodiment of the invention, the bridge function of the communication protocol stack according to the present invention in the card terminal 105, the hardware device configuration and / or software in the development and / or manufacturing stage of the card terminal 105 It can be realized by mounting on the card terminal 105, including the functional configuration, by which the present invention is not limited.

According to another embodiment of the present invention, the bridge function of the communication protocol stack according to the present invention in the card terminal 105 is, after the card terminal 105 is developed and / or manufactured, the communication protocol according to the present invention The program including the bridge function of the stack can be realized by recording on a predetermined recording medium provided in the card terminal 105, whereby the present invention is not limited.

According to another embodiment of the present invention, in the card terminal 105, a part of the bridge function of the communication protocol stack according to the present invention is a hardware device configuration and the development and / or manufacturing stage of the card terminal 105 and And / or mounted via a software functional configuration, the rest of which is developed and / or manufactured by the card terminal 105, and then includes a program including a bridge function of a communication protocol stack according to the present invention. It can be realized by recording on a predetermined recording medium provided in the present invention, whereby the present invention is not limited.

For example, in order for the card terminal 105 to access a predetermined TCP / IP (and / or UDP / IP) based wired communication network, a predetermined network interface card (NIC) is required, and the NIC is a connector and a signal transmitting and receiving unit. And a signal processor, wherein the hardware device configuration includes at least one electrical / electronic device and a circuit corresponding to the connector, the signal transceiver, and the signal processor. And a program for controlling the operation of the signal transmission and reception unit and the signal processing unit, and processing the communication protocol defined in the wired communication network through the operation control.

In particular, the program (for example, a program that controls the operation of the connector, the signal transmission and reception unit, and the signal processing unit, and processes the communication protocol defined in the wired communication network through the operation control) is in the form of firmware. Recorded in memory (e.g., read only memory (ROM) and / or erasable programmable read only memory (EPROM) and / or electrically erasable and programmable read only memory (EEPROM, etc.) on the device configuration, and / or the card terminal ( 105) It is possible to write to the memory provided in the card terminal 105 in the form of a predetermined system program (and / or application program according to the intention of those skilled in the art) included in the operating system, thereby The present invention is not limited.

The card terminal 105 having a bridge function of the communication protocol stack is connected to a predetermined relay server provided in the bansa through a predetermined communication network including at least one of the wired communication networks.

The relay server provided in the bansa receives a predetermined packet transmitted from the card terminal 105, and reads the received packet, and relays the packet to a destination to which the packet is finally transmitted. .

In addition, the relay server in performing the packet relay transmission function as described above, the wireless LAN terminal connected to the wireless LAN communication channel with the card terminal 105 through the bridge function of the protocol stack provided in the card terminal 105 Blocking the packet transmitted from the 100 to the van server 110 for electronic payment processing, and / or another terminal device (and / or server) connected to the wired communication network is the van server 110 It is characterized in that it performs the function of a security server to block access to the source.

According to an embodiment of the present invention, the packet received by the relay server is generated in the card terminal 105 and transmitted through the wired communication network, and the destination of the packet is the van server 110, and / Alternatively, if it is determined that the packet includes the payment approval request text for electronic payment processing, the relay server relays the received packet to the van server 110 for electronic payment processing corresponding to the packet. It is characterized by.

That is, the card terminal 105 having a bridge function of the communication protocol stack issuing a card issuing a card provided with at least one payment means to at least one or more customers via the van server 110 through the relay server By transmitting and receiving a payment approval request message and / or payment approval message and a payment server 115 provided in the company, the electronic payment procedure using the customer-owned card is performed.

Here, the TCP / IP (and / or UDP / IP) based wired communication network and relay server and the van server 110 and / or the van server 110 and the card issuer side payment server 115 is connected A series of network configurations including a dedicated communication network forms a payment communication network (eg, a value added communication network) for the card terminal 105 to perform a predetermined electronic payment procedure using the customer-owned card.

According to another exemplary embodiment of the present invention, a packet received by the relay server is generated in the WLAN terminal 100 connected to the card terminal 105 and a predetermined WLAN communication channel, and provided to the card terminal 105. When it is confirmed that the packet is transmitted to the wired communication network through a bridge function of the protocol stack, the relay server relays the packet to a transmission target server (and / or terminal) of the packet through a predetermined backbone network. It is characterized by.

That is, the WLAN terminal 100 to which the card terminal 105 and the wireless LAN communication channel are connected may be connected to at least one server (and / or terminal) through a bridge function of the communication protocol stack provided in the card terminal 105. And a predetermined communication channel are connected.

For example, the card terminal 105 having a bridge function of the communication protocol stack is connected to a web server and a client / server-based communication channel on the Internet through the backbone network, and / or to a terminal device on the Internet and a P2P ( Peer To Peer) based communication channels may be connected.

In addition, the card terminal 105 with a bridge function of the communication protocol stack is a network defined to provide a specific application service (eg, based on (or based on a backbone)) a predetermined application network connected to the backbone network. It is characterized in that a predetermined communication channel is connected to the server (and / or terminal) on the ().

For example, a card terminal 105 having a bridge function of the communication protocol stack may have a predetermined communication channel with a server (for example, a VoIP server) on an application network such as a predetermined VoIP (Voice over IP) network connected to the backbone network. And / or a communication channel with a call terminal for VoIP on the VoIP network.

In addition, the card terminal 105 with a bridge function of the communication protocol stack is a terminal device on a predetermined external network (for example, a network connected through an application network and a predetermined gateway) connected to a predetermined application network connected to the backbone network. And a predetermined communication channel are connected.

For example, a card terminal 105 having a bridge function of the communication protocol stack may be a server on a public switched telephone network (for example, an automatic response service (ARS) server) connected to a predetermined VoIP network connected to the backbone network. And a predetermined communication channel may be connected, and / or a communication terminal and a communication channel on the VoIP network may be connected.

FIG. 9 is a diagram illustrating a preferred functional configuration of a card terminal 105 performing a virtual WLAN AP function through a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention.

In more detail, FIG. 9 is connected to an IP-based wired communication network provided at an affiliated store for at least one electronic payment processing and operating based on TCP / IP (and / or UDP / IP). It shows a preferred functional configuration of the card terminal 105 having a wired communication means and at least one wireless LAN communication means for bridging the wireless LAN communication means and wired communication means on a communication protocol stack, to which the present invention pertains. Those skilled in the art may refer to and / or modify this drawing to include at least one wired communication means and a wireless LAN communication means, and the wired communication means and the wireless LAN communication means on a communication protocol stack. It would be possible to infer various functional configurations for the card terminal 105 to bridge, but the present invention encompasses all implementation methods inferred. And it shall not be limited to the exemplary method shown in the figure 9.

According to the preferred embodiment of the present invention, in FIG. 9, the wired communication means provided in the card terminal 105 having the bridge function of the communication protocol stack is based on W-CDMA and / or HSDPA operating based on the CDMA stack. Wireless communication means for accessing a mobile communication network, wireless communication means for accessing an IEEE 802.11x-based wireless LAN communication network, wireless communication means for accessing an IEEE 802.16x-based portable Internet, TCP / IP (and / or UDP / IP) Although shown as including at least one wired communication means of the wired communication means for connecting to an IP-based wired communication network operating based on, the card terminal 105 is a wired of any one of a wireless communication means and a wired communication means. Only communication means may be provided, whereby the present invention is not limited.

That is, the functional configuration of the card terminal 105 shown in FIG. 9 is only for efficiently describing the technical features of the card terminal 105 equipped with the bridge function of the communication protocol stack according to the present invention. The present invention is not limited to the illustrated embodiments, but rather can be inferred from various application methods of the present invention by those skilled in the art to which the present invention pertains.

Of course, it is apparent that the present invention includes all implementation methods inferred by reference to and / or modification of the drawing 9 as described above.

Referring to FIG. 9, a card terminal 105 having a bridge function of the communication protocol stack includes a control unit 205 for controlling and operating the overall functions of the card terminal 105, and the card terminal 105. And a memory unit 255 for storing information (or data) necessary for controlling and operating the overall function of the card, and / or recording a program necessary for controlling and operating the overall function of the card terminal 105. And a card reader unit 235 for reading predetermined payment means information from a customer-owned card equipped with at least one payment means for a predetermined electronic payment process, and a screen output of the card terminal 105. A screen output unit 210 for a function, a sound processor 215 for a sound input / output function of the card terminal 105, and a key input unit 220 for a key input function of the card terminal 105. Characterized in that it is basically provided, the security application module (225) (Secure Application Module; SAM) is further provided for safer and more efficient electronic payment processing according to the intention of those skilled in the art, and / or the electronic payment processing It is preferable to further include a predetermined print output unit 240 for printing a receipt according to.

According to the present invention, the card terminal 105 having a bridge function of the communication protocol stack is provided with an IP-based communication processor 250 for processing the card terminal 105 to communicate with an IP-based wired communication network. It features.

According to the present invention, the card terminal 105 having a bridge function of the communication protocol stack is connected to the wireless LAN terminal 100 having a predetermined wireless LAN communication means and a predetermined wireless LAN communication channel to connect the wireless LAN. And a wireless LAN communication unit 260 for processing a predetermined wireless LAN communication corresponding to the communication channel.

In addition, the card terminal 105 having a bridge function of the communication protocol stack includes a power supply unit 230 (eg, a power supply device and / or a battery, etc.) for supplying power required for the card terminal 105 to operate. It is characterized by further comprising).

The controller 205 includes a processor including a CPU / MPU in hardware and an execution memory (for example, a register and / or a random access memory (RAM)), and the card terminal 105 from the memory unit 255. Includes a predetermined program routine and / or a bus for inputting and outputting program data and a predetermined electronic circuit (or integrated circuit) provided therefor for realizing the overall (and / or characteristic) function of And a program routine that is software-loaded from a predetermined memory unit 255 (and / or chipset) into the execution memory to be processed by the processor to realize at least one predefined function. And / or generic term of program data (hence, in the present invention, recorded on the recording medium of the card terminal 105 for the bridge function of the communication protocol stack). A definition program routine is illustrated and illustrated as being provided in the control unit 205 for convenience.) Various functions to be implemented in the card terminal 105 by the control unit 205 are realized. In order to realize the above, it is characterized by controlling and operating the overall operation of the card terminal 105.

In particular, when power is input to the card terminal 105 to perform a function of the controller 205 that controls and operates the overall operation of the card terminal 105, an operating system stored in a predetermined memory unit 255. Routines, system management routines, and / or system variables are loaded into the execution memory and computed by the processor to perform functions of providing an operating system, system management program, and / or communication service.

The screen output unit 210 drives a predetermined screen output device (eg, an LCD (Liquid Crystal Display) device, and / or a CRT (Cathode Ray Tube) device) provided in the card terminal 105, Predetermined screen output data (for example, screen output data generated by a screen output program routine) generated from the controller 205, key data generated through the key input unit 220, and the card terminal 105 And outputting various information, signals, and / or contents (eg, text contents, image contents, and / or multimedia contents) extracted and / or generated in a process of performing a predetermined function to the screen output device. To this end, the screen output unit 210 includes a driver for outputting the screen output information (and / or data) according to the resolution and / or the number of colors corresponding to the screen output device, etc. It is.

The sound processor 215 drives a sound input device (for example, a microphone) included in the card terminal 105, encodes a predetermined sound signal input from the sound input device, and sends it to the controller 205. Provide a sound, and / or drive a sound input device (eg, a speaker) provided in the card terminal 105, and decode a predetermined sound signal extracted and / or generated by the control unit 205. It is characterized in that output through the output device (for example, a speaker), for this purpose, the sound processing unit 215 is provided with a predetermined vocoder (Vocoder) and codec (Codec). The sound processing unit 215 and the microphone to perform the function of the sound input means provided in the card terminal 105, or the sound processing unit 215 and the sound output provided in the card terminal 105 through the speaker Perform the function of the means.

The key input unit 220 is provided with at least one key button including a predetermined number key and / or a character key and / or a function key. Detects information (or signals) input from a key input device (e.g., a keypad, and / or a keyboard), and specifies a specific input mode of the card terminal 105 controlled by the control unit 205. And / or a predetermined information (or signal) is input from a predetermined key button provided in the keypad in an operation mode, so that at least one or more key events corresponding to the input information (or signal) (eg, MH_KEY_PRESSEVENT, MH_KEY_REPEATEVENT, When MH_KEY_RELEASEEVENT) is generated, the generated key event is provided to the controller 205, and the controller 205 is configured to perform the operation in the current input mode and / or operation mode of the card terminal 105. Read the predetermined key data corresponding to the key event (eg, from the key table for storing (managing) at least one or more key data corresponding to a specific key event in each card terminal 105 input mode and / or operation mode). Read key data in a key event) and / or read a command for executing a predetermined function defined in accordance with the key event. The keypad including the key input unit 220 and at least one key button interlocks with each other to perform a function of a key input unit provided in the card terminal 105.

The customer who receives the electronic payment service through the card terminal 105 may use an MS (Magnetic Stripe) card based on the ISO / IEC 7810 standard, and / or a contact IC card (or wireless) based on the ISO / IEC 7816 standard. IC chip) and / or a card including (or owning) at least one contactless IC card (or wireless IC chip) based on ISO / IEC 14443 standard, and the card reader unit 235 holds the card. It is characterized in that the interface for reading at least one or more information or data provided in the.

According to the embodiment of the present invention, the card reader unit 235 is an MS card reader unit 235 which provides an interface between the MS card and the card terminal 105, and / or the contact IC card and the card. A contact IC card reader 235 providing an interface between the terminals 105 and / or a contactless IC card reader 235 providing an interface between the contactless IC card and the card terminal 105. .

The MS card reader 235 is a card reader 235 based on ISO / IEC 7810. The MS card reader 235 includes at least one magnetic head including a predetermined coil. The magnetic head is moved in a predetermined direction in close contact with the magnetic head (or the magnetic head moves in close contact with an MS card in which predetermined information is recorded). By using a predetermined electrical signal is loaded on the interface of the predetermined information or data from the at least one or more tracks provided in the MS of the MS card to the card terminal (105).

The contact IC card reader 235 is a card reader 235 based on ISO / IEC 7816. The contact IC card reader 235 forms at least an electrical contact in contact with a chip on board (COB) provided in the contact IC card. It comprises at least one contact point, and supplies power to the IC chip of the IC card through the contact point, and predetermined from the IC chip through the half-duplex transaction using an Application Protocol Data Unit (APDU) It is characterized in that the information or data of the interface to the card terminal 105.

The contactless IC card reader 235 is a card reader 235 based on ISO / IEC 14443. The contactless IC card reader 235 is contactless with a contactless IC card by using capacitive coupling and / or inductive coupling. It comprises at least one antenna making an electrical contact, the power supply to the IC chip of the IC card through the antenna, and predetermined from the IC chip through the half-duplex transaction using the APDU It is characterized by interfacing information or data to the card terminal 105.

According to the exemplary embodiment of the present invention, the card reader 235 is provided with predetermined card information (eg, in the card) from at least one or more card readers 235 for the electronic payment service defined in the card terminal 105. The payment means information corresponding to the payment means including at least one credit card, debit card, debit card, cash card, financial account).

The Secure Application Module (225) is a confidentiality and / or authentication required by the card terminal 105 in the process of performing the electronic payment and / or electronic payment using the card. Security requirements, including integrity and / or nonrepudiation, etc., within the card terminal 105 without using an authentication server (or payment server 115) on a payment network. As a safety device for performing a reliable and reliable structure, a predetermined message (information or data) processed in the process of performing the predetermined security request function (for example, electronic payment and / or electronic payment function) by the card terminal 105. ) Encrypts or decrypts, adds an authenticator to prevent forgery (or tampering) of the message, or stores important information in the process of performing the security request function. And performing a function according to claim.

In general, the security application module 225 is preferably composed of a predetermined security application module 225 inserter and a security application module 225 chip, the security application module 225 chip is a chip containing at least 8-bit CPU Application Specific Integrated Circuit (ASIC) chips (eg, PLCC 44-pin chips) and / or IC chips (eg, IC cards in the form of subscriber identity modules (SIMs)) with performance of 2 MIPS (Million Instructions Per Second) or more. It is preferable to comprise a.

In addition, the security application module 225 is at least one or more security application data (eg, at least one identifier, version, expiration date, issue date, code value required for the card terminal 105 to perform a predetermined security request function) And / or keys (e.g., one master key and at least one application key) and / or protocols (e.g., trading protocols, re-transaction protocols, immediate transaction cancellation protocols, collection protocols, SAM issuance protocols, (e.g. Card company) registration protocol, authorization acquisition protocol, mode switching protocol, key download protocol, SAM revocation protocol) and / or commands (e.g., at least one read / authentication / transmission / registration / setting / mode switching / collection / deletion / discard / Initialization / reprocessing / cancellation command).

The print output unit 240 may process the card terminal 105 to perform a predetermined function (e.g., an electronic payment processing function using a card) and / or predetermined information or data (e.g., payment processing) generated as a result. Outputting the result information or data) to a predetermined printing apparatus (for example, a receipt printer), and a printing protocol for printing the printing information or data through the predetermined printing apparatus in accordance with a predefined printing form; This includes the driver.

The IP-based communication processor 250 uses the card terminal 105 on an external TCP / IP (and / or UDP / IP) based preferred communication network through a TCP / IP (and / or UDP / IP) based communication protocol. A wired communication means for processing a component and the TCP / IP (and / or UDP / IP) based communication protocol for wired communication, the connector corresponding to the TCP / IP (and / or UDP / IP) communication standard in hardware. And a device configuration including a signal transceiver and a signal processor, wherein the TCP / IP (and / or UDP / IP) is transmitted to the signal transceiver and the signal processor through an electrical signal transmitted and received through the connector in software. System programs (e.g., firmware included in each device configuration, and / or system programs included in (or included) in the operating system of the card terminal 105) for processing corresponding to the base communication protocol. It is to be preferred.

Here, the connector preferably comprises at least one connector connected to the UTP (Unshielded Twisted Pair) cable and / or a connector connected to the BNC cable, wherein the signal transmission and reception unit decodes the electrical signal received through the connector And / or encoding data (and / or packets) to be transmitted through the connector into an electrical signal, wherein the signal processing unit buffers the decoded data to Extract a packet corresponding to a TCP / IP (and / or UDP / IP) based communication protocol, and / or extract the packet corresponding to the TCP / IP (and / or UDP / IP) based communication protocol. It is preferable to include the generating, and in particular, the signal transmission and reception unit and the signal processing unit is the data transmitted and received (and / Or retransmission and / or error detection for a packet).

Those skilled in the art to which the present invention belongs, the network configuration on the TCP / IP (and / or UDP / IP) based wired communication network through the TCP / IP (and / or UDP / IP) based communication protocol Since it will be familiar with the technical configuration of the element and the IP-based communication processing unit 250 to perform wired communication through the TCP / IP (and / or UDP / IP) based communication protocol, a detailed description thereof will be omitted for convenience. do.

The memory unit 255 is input and output when an operation by a predetermined program routine (or code) and / or program data (eg, program routine (or code)) for controlling the overall operation of the card terminal 105 is performed. A general term for memory that stores information and / or data; read only memory (ROM) corresponding to read-only memory, flash memory (FM), and electrically erasable and programmable read only (EEPROM). And a nonvolatile memory including at least one of a memory, a hard disk drive, and the like.

In general, the ROM stores system information that should not be deleted, and the nonvolatile memory includes an operating system routine, a communication processing program routine, and / or various application program routines provided through the card terminal 105 and information or data therefor. Etc. are stored.

According to the present invention, the memory unit 255 stores communication parameter information corresponding to at least one communication network to which the card terminal 105 can connect in order to provide a bridge function of the communication protocol stack. It is done.

Here, the communication parameter information is parameter information for connecting to each communication network according to a communication protocol standard defined in at least one communication network to which the card terminal 105 can connect. In the process of connecting to the wired communication network (and / or communication connection) is made including the basic information defined to transmit and receive with the network components on each communication network.

According to the present invention, the memory unit 255 processes an address corresponding to an address to be allocated to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected through the WLAN communication unit 260. It is characterized by storing the information.

In order for the WLAN terminal 100 connected to the card terminal 105 and a predetermined WLAN communication channel to access (and / or communicate) with the communication network, the WLAN terminal 100 connected to the WLAN communication channel is connected to the WLAN terminal 100. Although a predetermined address usable in a wired communication network should be allocated, in general, the WLAN terminal 100 is not assigned an address for accessing (and / or communicating) the wired communication network, and / or the wired communication network. An address that cannot be used is assigned.

Therefore, the card terminal 105 is connected to the WLAN terminal 100 through the card terminal 105 in the process of connecting the WLAN terminal 100 with a predetermined WLAN communication channel (and / or communication). A predetermined address that can be used in a wired communication network to be connected) should be allocated, and the address processing information includes information for allocating a predetermined address that can be used in a wired communication network to the WLAN terminal 100.

According to an embodiment of the present invention, the WLAN terminal 100 can be used in the wired communication network from a dynamic address allocation server (eg, a DHCP server, not shown) on the wired communication network bridged through the card terminal 105. A predetermined address may be dynamically allocated, and the address processing information corresponds to a procedure for the card terminal 105 to dynamically allocate a predetermined address from a dynamic address allocation server (not shown) on the wired communication network. It is preferable that the information is included.

According to another exemplary embodiment of the present invention, the card terminal 105 may secure a predetermined address (and / or address area) to be allocated to the WLAN terminal 100 to which the WLAN communication channel is connected. In this case, the address processing information preferably includes address information (and / or address area information) to be assigned to the card terminal 105.

According to another exemplary embodiment of the present invention, the card terminal 105 is a predetermined virtual address (eg, IPv4 based IP address) to the WLAN terminal 100 to which the WLAN communication channel is connected, “192.168. 0.1 to 255 "), wherein the address processing information includes information for allocating a virtual address to the WLAN terminal 100.

According to the present invention, the memory unit 255 preferably stores a predetermined communication program routine for providing a bridge function of the communication protocol stack. The communication program routine may include booting of the card terminal 105. And at the same time (or through a predetermined communication-related command) loaded into the execution memory of the control unit 205, whereby a functional configuration of a communication program routine for providing a bridge function of the communication protocol stack is provided for convenience. A block diagram in the control unit 205 will be described.

Referring to FIG. 9, when a communication program routine for providing a bridge function of the communication protocol is connected to the WLAN terminal 100 and a predetermined WLAN communication channel through at least one WLAN communication unit 260, An address processor 280 for allocating and processing an address for accessing (and / or communicating) the wired communication network to the WLAN terminal 100, and reading the packet information transmitted and received on the protocol stack to read the packet. A bridge check unit 275 for checking whether to bridge or use the transmit / receive packet in the card terminal 105, and a protocol corresponding to the wireless LAN communication unit 260 when the check result is to bridge the transmit / receive packet. And a bridge function unit 265 which bridges the stack and the protocol stack corresponding to the communication processing unit.

In addition, the communication program routine that provides the bridge function of the communication protocol, when bridging the transmission and reception packet as a result of the confirmation by the bridge confirmation unit 275, and confirms whether or not to convert the transmission and reception packet structure, according to the confirmation result And a protocol conversion unit 270 for converting the transmission / reception packet to be bridged on a protocol stack.

In general, the application program (and / or terminal program for electronic payment processing) provided in the card terminal 105 is characterized in that it works in conjunction with the highest layer on the communication protocol stack, and fully trust the communication protocol stack of the lower layer below To be manufactured and developed.

That is, an application program (and / or terminal program for electronic payment processing) included in the card terminal 105 operates by calling an API (Application Program Interface) function corresponding to the highest layer on the communication protocol stack. The communication protocol stack of the layer is a system program provided in the communication processor (eg, WCDMA / HSDPA communication processor and / or IEEE 802.11x communication processor and / or IEEE 802.16x communication processor and / or IP-based communication processor 250, etc.). And / or is operated and controlled by a system program included in an operating system of the card terminal 105, wherein the application program (and / or terminal program for electronic payment processing) is a communication protocol stack of the lower layer. Does not approach.

According to the present invention, in the communication protocol structure as described above, the bridge function unit 265 is a communication processing unit (e.g., WCDMA / HSDPA communication processing unit and / or IEEE 802.11x communication processing unit and / or provided in the card terminal 105). Between a communication protocol layer (eg, a physical layer, a data link layer) corresponding to an IEEE 802.16x communication processor and / or an IP-based communication processor 250 and a communication protocol layer provided on an operating system of the card terminal 105. And a logical bridge function layer that logically bridges a protocol layer corresponding to the WLAN communication unit 260 and a protocol layer corresponding to the external communication unit.

According to an embodiment of the present invention, the logical bridge function layer is included in a predetermined protocol layer on the communication protocol layer provided in the card terminal 105, and / or in at least two or more protocol layers according to the function of each layer. All of them can be included separately, and the present invention is not limited thereto.

According to one embodiment of the present invention, the protocol stack above the logical bridge function layer preferably includes a structure included in a hierarchical structure corresponding to the main communication protocol stack provided in the card terminal 105, The protocol stack below the logical bridge functional layer has a hierarchical structure corresponding to a main communication protocol stack provided in the card terminal 105, and a layer corresponding to at least one or more other communication protocol stacks bridged by the logical bridge functional layer. It is preferable to comprise a structure.

That is, it is preferable that the upper layer performs protocol stack processing for using the packet terminal transmitted and received through the protocol stack in the card terminal 105 based on the logical bridge function layer, and bridged by the logical bridge function layer. Preferably at least two protocol layers corresponding to the protocol stack to be located beneath the logical bridge functional layer.

For example, the card terminal 105 is a main communication protocol stack is a TCP / IP (and / or UDP / IP) communication protocol (= card terminal 105 is a TCP / IP (and / or UDP / IP) based wired communication network. Connect to (and / or communicate with) the logical bridge function layer in a particular layer of the TCP / IP (and / or UDP / IP) communication protocol layer. The upper layer of the layer is implemented with the TCP / IP (and / or UDP / IP) communication protocol layer, and the lower layer of the layer with the logical bridge function layer is the TCP / IP (and / or UDP / IP). It comprises a lower layer of the communication protocol stack and also comprises a lower layer of at least one or more other protocol stacks bridged through the logical bridge functional layer.

In this case, the logical bridge functional layer may include at least two or more protocol stacks located in lower layers of the corresponding protocol layers based on a TCP / IP (and / or UDP / IP) communication protocol stack corresponding to the main communication protocol stack. Bridge and / or bridge mutually compatible protocol layers.

The address processing unit 280 is stored in the memory unit 255 when a predetermined wireless LAN terminal 100 and a wireless LAN communication channel are connected through the wireless LAN communication unit 260 provided in the card terminal 105. It is characterized in that the wireless LAN terminal 100 allocates and processes a predetermined address for accessing (and / or communicating) the wired communication network using address processing information.

According to an exemplary embodiment of the present invention, the address processing unit 280 extracts address processing information including dynamic address allocation server information existing on the wired communication network from the memory unit 255, and extracts the address processing information. It is preferable to access a dynamic address assignment server located on the wired network based on the request, request a predetermined address to be allocated to the WLAN terminal 100, and allocate the allocated address to the WLAN terminal 100. Accordingly, the wireless LAN terminal 100 connected to the card terminal 105 and a predetermined wireless LAN communication channel is connected to the wired communication network to the assigned address through a bridge function on a protocol stack provided in the card terminal 105. Can be connected to (and / or communicated with).

According to another exemplary embodiment of the present invention, the address processing unit 280 may assign predetermined address information (and / or address) to be allocated from the memory unit 255 to the WLAN terminal 100 to which the WLAN communication channel is connected. Extracting predetermined address processing information including area information) and allocating the predetermined address to the WLAN terminal 100 based on the address information (and / or address area information) included in the address processing information. Preferably, the wireless LAN terminal 100 is connected to the card terminal 105 and a predetermined wireless LAN communication channel is wired to the assigned address through a bridge function on the protocol stack provided in the card terminal 105. It is possible to connect (and / or communicate) to a communication network.

According to another exemplary embodiment of the present invention, the address processing unit 280 may be allocated from the memory unit 255 to the WLAN terminal 100 to which the WLAN communication channel is connected (eg, another WLAN terminal). Extracts predetermined virtual address information (for example, "192.168.0.1 to 255" for an IPv4-based IP address), which is not duplicated with 100, and based on the virtual address information included in the address processing information; It is preferable to assign a predetermined address to the WLAN terminal 100, whereby the WLAN terminal 100 connected to the card terminal 105 and a predetermined WLAN communication channel is provided in the card terminal 105. The bridge function on the protocol stack allows a connection (and / or communication connection) to the wired communication network to the assigned address.

According to the exemplary embodiment of the present invention, the address processor 280 allocates and processes a predetermined address obtained through the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected. It is preferable to directly allocate a predetermined address obtained in response to the address processing information in the WLAN terminal 100 to which the WLAN communication channel is connected. In such an embodiment, a predetermined address may be assigned to the WLAN terminal 100. A wireless LAN communication means operating on a basis is provided, and can be effectively implemented when the wireless LAN communication means is provided with a function configuration for dynamically allocating a predetermined address.

For example, when a function configuration for allocating a predetermined address is provided in the WLAN terminal 100 provided in the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected (for example, When the WLAN communication means provided in the WLAN terminal 100 operates through address assignment), the address processing unit 280 transmits the address obtained in response to the address processing information to the WLAN terminal 100. By providing, the address is dynamically allocated through the function of address assignment related function provided in the WLAN terminal 100.

According to the exemplary embodiment of the present invention, the address processor 280 allocates and processes a predetermined address obtained through the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected. It is preferable to logically allocate a predetermined address obtained in correspondence with the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected. Effective when the LAN communication means does not operate based on a predetermined address, and / or the WLAN communication means operates based on a predetermined address, but is not equipped with a function configuration for dynamically allocating the address. Can be implemented.

Here, logically allocating the address to the WLAN terminal 100 means that the card terminal 105 does not directly allocate a predetermined address obtained through the address processing information in the WLAN terminal 100. Processes the address in association with the WLAN communication channel information (and / or WLAN terminal 100 information) and temporarily stores the address, and then transmits the address from the WLAN terminal 100 to a wired communication network through the WLAN communication channel. When a packet requested to be received is received, the card terminal 105 converts the packet into a packet structure that can be transmitted to the wired communication network through the stored address, and / or the stored predetermined value in the card terminal 105. And adding (and / or inserting) an address of the packet to the wired network.

Alternatively, when a packet to be finally received from the wired communication network to the WLAN terminal 100 is received, the packet is compared to the stored address by comparing the packet included in the received packet with the stored packet at the card terminal 105. Converting to a packet structure corresponding to a LAN communication channel and / or enhancing (and / or erasing) an address included in the received packet at the card terminal 105 and transmitting it to the WLAN terminal 100. It is made to include.

The bridge check unit 275 receives a predetermined packet through a wireless LAN communication channel with a predetermined wireless LAN terminal 100 through the wireless LAN communication unit 260 provided in the card terminal 105 (for example, The packet transmitted from the WLAN terminal 100 flows into the card terminal 105), reads the received packet and uses the packet in the card terminal 105, and / or according to the present invention. It is characterized in that whether to bridge to the wired communication network through the bridge function of the protocol stack.

In addition, when the bridge check unit 275 bridges the packet to a protocol stack corresponding to the communication processing unit, the bridge check unit 275 checks whether the packet is a packet for payment processing or a packet for wireless LAN connection. It is done.

According to an exemplary embodiment of the present invention, a packet received through the WLAN communication channel to the card terminal 105 is packet information corresponding to each protocol layer from a lower layer on a protocol stack corresponding to the WLAN communication unit 260. Is removed and provided to an upper layer to reach the logical bridge function layer, wherein the bridge identification unit 275 includes a lower layer on a protocol stack corresponding to the WLAN communication unit 260 for a packet including at least one packet information. From the packet terminal (105), by reading the packet information contained in the packet (e.g., destination information to which the packet was last sent), and / or by using the card terminal 105 It is advisable to check whether or not to send.

If it is confirmed that the packet is not bridged on the protocol stack, the packet is provided to the upper layer of the logical bridge function layer by the bridge function unit 265 and is provided in the card terminal 105. Processing through a program (and / or a terminal program for electronic payment processing).

On the other hand, if it is confirmed that the packet is bridged on the protocol stack, the packet corresponds to a communication processor provided in the card terminal 105 via the logical bridge function layer by the bridge function unit 265. Bridged to the stack and sent to the wired network.

In addition, when a predetermined packet is generated in the card terminal 105 (for example, the bridge check unit 275), the packet generated in the upper layer of the main protocol stack provided in the card terminal 105 is logical. Reach the bridge function layer), read the generated packet and transmit the packet to a wired communication network through a protocol stack corresponding to the communication processor, and / or a protocol stack corresponding to the WLAN communication unit 260. It is characterized by checking whether to bridge.

According to the exemplary embodiment of the present invention, the data to be transmitted to the outside generated by the card terminal 105 is provided to the lower layer while the packet information corresponding to each protocol layer is added from the upper layer on the communication protocol layer, and the lowest layer ( For example, the physical layer transmits the communication packet including at least one packet information corresponding to each layer (for example, destination information where the packet was last transmitted) to the outside as described above. When a packet including at least one packet information reaches a logical bridge function layer from the upper layer, by reading the packet information contained in the packet, whether the packet is to be transmitted to a wired communication network, and / or the wireless LAN communication It is preferable to check whether to transmit to the WLAN terminal 100 through a channel.

If it is confirmed that the packet is not bridged on the protocol stack, the packet is transmitted by the bridge function 265 to a wired communication network through a main protocol stack connected to a lower layer of the logical bridge function layer. .

On the other hand, if it is confirmed that the packet is bridged on the protocol stack, the packet is transmitted to the WLAN terminal 260 provided in the card terminal 105 via the logical bridge function layer by the bridge function unit 265. It is bridged to a protocol stack corresponding to and is transmitted to the WLAN terminal 100 through the WLAN communication channel.

When a predetermined packet is received from a wired communication network through the communication processing unit included in the card terminal 105, the bridge checking unit 275 reads the received packet to use the packet in the card terminal 105. And / or whether to bridge to a predetermined WLAN terminal 100 through a bridge function of the protocol stack according to the present invention.

According to the embodiment of the present invention, the packet received from the wired network to the card terminal 105 is provided to the upper layer while the packet information corresponding to each protocol layer is removed from the lower layer of the main protocol stack. As described above, data in which each packet information is removed in each layer is provided to the application program (and / or terminal program for electronic payment processing), and the bridge check unit 275 includes at least one packet information. When the logical bridge function layer arrives from the lower layer of the main protocol stack, the packet information included in the packet (for example, destination information to which the packet was last transmitted) is read, thereby making the packet available to the card terminal 105. And / or whether to transmit to the WLAN terminal 100 through the WLAN communication channel. It is desirable.

If it is confirmed that the packet is not bridged on the protocol stack, the packet is provided to the upper layer of the logical bridge function layer by the bridge function unit 265 and is provided in the card terminal 105. Processing through a program (and / or a terminal program for electronic payment processing).

On the other hand, if it is confirmed that the packet is bridged on the protocol stack, the packet is transmitted to the WLAN terminal 260 provided in the card terminal 105 via the logical bridge function layer by the bridge function unit 265. It is bridged to a protocol stack corresponding to and is transmitted to the WLAN terminal 100 through the WLAN communication channel.

The protocol conversion unit 270 is characterized in that it is provided with a function to determine whether or not to convert the transmission and reception packet structure when bridged the transmission and reception packets as a result of the confirmation of the bridge confirmation unit 275.

If it is confirmed that the transmission / reception packet structure needs to be converted, the protocol conversion unit 270 may convert the transmission / reception packet to be bridged on a protocol stack.

According to an embodiment of the present invention, when the protocol conversion unit confirms that the packet is a packet for payment processing as a result of the verification by the bridge confirmation unit 275, the packet is converted into the SSL (or Secure Sockets Layer) and / or TLS ( Preferably, the method further comprises encrypting with a security protocol corresponding to the TCP / IP (and / or UDP / IP) based wired communication network, such as Transport Layer Security) and / or AAA (Authentication, Authorization and Accounting).

According to an embodiment of the present invention, the protocol conversion unit 270 converts a packet corresponding to the WLAN communication unit 260 into a packet structure corresponding to the communication processing unit, in the WLAN communication unit 260. Reading predetermined packet data by reading a packet encapsulating with a packet structure defined in a corresponding protocol stack, and encapsulating the read packet data into a packet structure defined in a protocol stack corresponding to the communication processor It is preferable to comprise a.

If the packet data size read from the packet corresponding to the wireless LAN communication unit 260 is not compatible with the packet data size of the packet corresponding to the communication processing unit, the protocol conversion unit 270 may read the read packet. It is preferable to further include a function for buffering data to make the read packet data sizes compatible.

According to another embodiment of the present invention, the protocol conversion unit 270 converts a packet corresponding to the wireless communication unit 260 into a packet structure corresponding to the communication processing unit, the wireless communication unit 260. Adding (or inserting) packet information that can be transmitted to a wired communication network through a communication processor provided in the card terminal 105 to a packet generated (and / or processed) in a packet structure defined in a protocol stack corresponding to It is preferable to comprise a.

According to an exemplary embodiment of the present invention, a method of converting a packet structure corresponding to the wireless LAN communication unit 260 into a packet corresponding to the communication processing unit by the protocol conversion unit 270 may include a protocol stack corresponding to the communication processing unit. Reading the encapsulating packet into a packet structure defined in FIG. 2 to read predetermined packet data, and encapsulating the read packet data into a packet structure defined in a protocol stack corresponding to the WLAN communication unit 260. It is preferable to comprise a.

If the packet data size read from the packet corresponding to the communication processor is not compatible with the packet data size of the packet corresponding to the WLAN communication unit 260, the protocol converter 270 may read the read packet. It is preferable to further include a function for buffering data to make the read packet data sizes compatible.

According to another exemplary embodiment of the present invention, the protocol conversion unit 270 converts a packet corresponding to the communication processing unit into a packet structure corresponding to the WLAN communication unit 260 may include a protocol corresponding to the communication processing unit. Removing (or erasing) packet information that is not compatible with the protocol stack corresponding to the WLAN communication unit 260 among the packet information included in the packet generated (and / or processed) in the packet structure defined in the stack. It is preferable to comprise.

Hereinafter, a card terminal having a bridge function of the communication protocol stack based on an external communication means and / or a wireless LAN communication means supporting a communication protocol stack compatible with an OSI (Open Systems Interconnection) 7 layer among a plurality of communication protocols. The technical characteristic of the 105 is shown and demonstrated.

However, the present invention is not only applicable to a communication protocol stack compatible with the OSI 7 layer, and a person having ordinary skill in the art to which the present invention pertains has another layer structure through the embodiment of the present invention shown below. Corresponding to each communication protocol stack made, including the technical features of the card terminal 105 equipped with a bridge function of the communication protocol stack according to the present invention, the present invention can be inferred all the implementation method It is not limited to the implementation method shown below.

10A, 10B, 10C, and 10D illustrate a logical bridge function hierarchy for providing a bridge function of a communication protocol stack according to another exemplary embodiment of the present invention.

10a, 10b, 10c, and 10d show that the card terminal 105 having the bridge function of the communication protocol stack is based on TCP / IP (and / or UDP / IP), which is compatible with OSI 7 layer. At least one WLAN terminal 100 and / or at least one radio accessing (and / or communicating) an IP-based wired network supporting a communication protocol stack and also including a protocol stack compatible with the OSI 7 layer When the LAN terminal 100 is connected to a predetermined WLAN communication channel, a method for implementing a logical bridge function layer for bridging a communication protocol stack corresponding to the wireless LAN communication channel and a communication protocol stack corresponding to a wired communication network Specifically, Figure 10a illustrates an upper layer (and / or sublayer of the network layer) of the datalink layer on a communication protocol compatible with the OSI 7 layer. FIG. 10B illustrates an implementation method including a logical bridge function layer that provides a bridge function of the communication protocol stack, and FIG. 10B illustrates an upper layer (and / or a part of a transport layer) of a network layer on a communication protocol compatible with the OSI 7 layer. A method of implementing a logical bridge function layer providing a bridging function of the communication protocol stack in a layer) is illustrated, and FIG. 10C illustrates an upper layer (and / or session) of a transport layer on a communication protocol compatible with the OSI 7 layer. A sub-layer of a layer) illustrates an implementation method including a logical bridge function layer that provides a bridge function of the communication protocol stack, and FIG. 10D illustrates an upper layer (and a session layer) of a session layer on a communication protocol compatible with the OSI 7 layer. / Or the sublayer of the presentation layer) the bridge function of the communication protocol stack It illustrates an implementation method provided with a logical bridge function layer provided.

Those skilled in the art to which the present invention pertains may refer to and / or modify the drawings 10a, 10b, 10c, and 10d so that the card terminal 105 is connected to a communication network other than the IP-based wired communication network. In case of connection (and / or communication connection), various implementation methods may be inferred for the logical bridge function layer that bridges the communication protocol stack corresponding to the WLAN communication channel and the communication protocol stack corresponding to the wired communication network. The present invention includes all the inferred implementation methods, and is not limited to the implementation methods shown in FIGS. 10A, 10B, 10C, and 10D.

In addition, those skilled in the art to which the present invention pertains may refer to and / or modify the drawings 10a, 10b, 10c, and 10d to make the present invention on another communication protocol stack incompatible with the OSI 7 layer. Although various implementation methods may be inferred having a logical bridge function layer for providing a bridge function of a communication protocol stack according to the present invention, the present invention includes all of the inferred implementation methods. And the implementation method shown in FIG. 10D.

In addition, those skilled in the art to which the present invention pertains refer to and / or modify the present drawings 10a, 10b, 10c and 10d, and a communication protocol stack compatible with the OSI 7 layer and the OSI 7 layer. It would be possible to infer various implementations having a logical bridge function layer that provides a bridge function of the communication protocol stack according to the present invention on an incompatible communication protocol stack, but the present invention includes all such inferred implementation methods. The present invention is not limited to the method shown in FIGS. 10A, 10B, 10C, and 10D.

10A, 10B, 10C, and 10D, the OSI 7 hierarchical structure configures and maintains a physical link to enable data communication through a predetermined communication network, and a communication line corresponding to the physical link. A physical layer that defines the mechanical, electrical, functional, and procedural characteristics for establishing and / or maintaining and / or breaking circuit connections for direct transmission of data bits through Once the link is established, the physical layer is controlled to define functions for data delivery reliability such as addressing, network topology, circuit usage rules, error detection, frame forwarding and flow control for the physical link. A network between a datalink layer and at least two communication systems that are physically connected through the communication network. Network Layer, which defines error control and flow control and multiplexing functions to provide network path selection and connectivity, and the construction, routing, and termination of virtual circuits for reliability of data transmission. And a transport layer that provides transmission error detection, recovery, and flow control. The physical layer, the data link layer, the network layer, and the transport layer are configured to transmit and receive data through a predetermined communication network. It is desirable to be defined for the purpose of reliable transmission.

In the OSI 7 hierarchical structure, the network layer further performs a function of correcting that an order of a packet is changed or an error occurs, and TCP and / or UDP are defined in the network layer.

According to an embodiment of the present invention, in the OSI 7 hierarchical structure, the physical layer and the data link layer include a hardware device configuration of a communication processing unit provided in the card terminal 105, and / or the configuration of the communication device. It is preferable to include corresponding firmware, whereby the logical bridge function layer providing the bridge function of the communication protocol stack according to the present invention is preferably defined at an upper layer of the physical layer and the data link layer.

According to another embodiment of the present invention, a logical bridge function layer that provides a bridge function of the communication protocol stack may be manufactured in the form of firmware and defined in the data link layer and / or the physical layer, thereby limiting the present invention. Not.

According to another embodiment of the present invention, some of the wireless LAN communication unit 260 which is not compatible with the OSI 7 layer structure also includes a functional unit corresponding to the physical layer of the OSI 7 layer and the MAC layer of the OSI 7 layer. The wireless LAN communication unit 260, which is not compatible with the OSI 7 hierarchical structure, also includes a corresponding functional configuration unit. It is possible to define a logical bridge function layer that provides a bridge function of a protocol stack, whereby the present invention is not limited.

10A, 10B, 10C, and 10D, the OSI 7 hierarchical structure provides a function of configuring, managing, and terminating a communication session between applications provided in at least two communication systems connected through a predetermined communication network. A session layer defining a presentation layer, a presentation layer defining data conversion, compression, and encryption / decryption functions between applications provided in at least two communication systems connected through a predetermined communication network; And an application layer corresponding to an application program included in at least two communication systems connected through a communication network.

According to an embodiment of the present invention, the session layer and / or the presentation layer and / or the application layer may be integrated into one layer according to the functional characteristics of the card terminal 105 providing the bridge function of the communication protocol stack. As such, the present invention is not limited thereto.

10A, 10B, 10C, and 10D, the card terminal 105 connects to the TCP / IP (and / or UDP / IP) based communication network and provides the TCP / IP to provide a communication connection. An Ethernet physical layer including (and / or UDP / IP) and a datalink layer including an Ethernet MAC layer including the TCP / IP (and / or UDP / IP). It is characterized by.

The physical layer corresponding to the TCP / IP (and / or UDP / IP) standard includes a network interface card (NIC) and / or a high-speed Internet device (eg, a cable communication modem, and / or) provided in the card terminal 105. A hub connected to a network component (e.g., via a UTP cable with a NIC) through an Asymmetric Digital Subscriber Line (ADSL) communication modem and / or a Very High-data Rate Digital Subscriber Line (VDSL) communication modem. Hub) and / or a router, and an internet service provider (ISP) device connected to the high speed internet device through a predetermined BNC cable). It is characterized in that it is physically connected to at least one server (and / or card terminal 105) through a wired communication interval including a backbone network.

The MAC layer included in the data link layer corresponding to the TCP / IP (and / or UDP / IP) standard performs a medium access control function defined in the IEEE 802.3 standard, and at least corresponds to the physical layer. It consists of one or more sublayers.

Those skilled in the art to which the present invention pertains can refer to the TCP / IP (and / or UDP / IP) communication protocol specification to provide technical features of the MAC layer included in the physical layer and the data link layer. As will be understood, detailed descriptions of the physical layer and the data link layer corresponding to the TCP / IP (and / or UDP / IP) communication protocol specification will be omitted for convenience.

Referring to FIG. 10A, the logical bridge functional layer is provided at an upper layer (and / or sub-layer included in a network layer) of the data link layer, wherein the logical bridge functional layer is the data link. The physical layer and MAC layer of the TCP / IP (and / or UDP / IP) communication protocol stack in the upper layer (and / or network layer) of the layer and the MAC of the WLAN communication protocol stack provided in the card terminal 105. Bridge the layer (and / or LLC layer) and the physical layer on a protocol stack.

In addition, the logical bridge function layer provided in an upper layer (and / or sub-layer included in the network layer) of the data link layer may include a presentation layer, a session layer, and a transport layer at an application layer on the communication protocol stack. A function for transmitting / receiving a communication packet provided to the network layer to the TCP / IP (and / or UDP / IP) based wired communication network through the MAC layer and the physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack. In addition, the communication packet is characterized in that it further comprises a bridge to transmit and receive to the MAC layer (and / or LLC layer) and the physical layer of the WLAN communication protocol stack provided in the card terminal 105.

In FIG. 10A, the logical bridge function layer is illustrated as a sub-layer provided above the network layer for convenience, but the logical bridge function layer is a sub-layer existing between the network layer and the data link layer, and / or the It may be a sublayer provided below the network layer, whereby the present invention is not limited.

Referring to FIG. 10B, the logical bridge functional layer is provided at an upper layer (and / or sub-layer included in the transport layer) of the network layer, wherein the logical bridge functional layer is A physical layer, a MAC layer, and a network layer of the TCP / IP (and / or UDP / IP) communication protocol stack in an upper layer (and / or transport layer) and a WLAN communication protocol stack provided in the card terminal 105. Bridge the network layer, MAC layer (and / or LLC layer) and physical layer on the protocol stack.

The logical bridge function layer provided in an upper layer (and / or sublayer included in a transport layer) of the network layer may include a presentation layer and an application layer at an application layer on the communication protocol stack and the transport layer. A function of transmitting and receiving a communication packet to the TCP / IP (and / or UDP / IP) based wired communication network through a network layer, a MAC layer, and a physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack. In addition, the communication packet is characterized in that it further comprises the transmission and reception bridged to the network layer, MAC layer (and / or LLC layer) and the physical layer of the wireless LAN communication protocol stack provided in the card terminal 105 .

If the network layer does not exist in the protocol stack corresponding to the WLAN communication unit 260 in the embodiment illustrated in FIG. 10B, the network layer of the TCP / IP (and / or UDP / IP) based communication protocol stack The logical bridge function layer provided in an upper layer (and / or a sublayer included in a transport layer) of the network layer, the MAC layer, and the physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack and the It is possible to directly bridge the MAC layer (and / or LLC layer) and the physical layer of the WLAN communication protocol stack provided in the card terminal 105 on the protocol stack, thereby not limiting the present invention.

In FIG. 10B, the logical bridge function layer is illustrated as a sub-layer provided above the transport layer for convenience. However, the logical bridge function layer is a sub-layer existing between the transport layer and the network layer, and / or the transmission. It may be a sublayer provided below the hierarchy, and the present invention is not limited thereby.

Referring to FIG. 10C, the logical bridge functional layer is provided at an upper layer (and / or sub-layer included in the session layer) of the transport layer, wherein the logical bridge functional layer is WLAN communication provided in the card terminal 105 with the physical layer, MAC layer, network layer, and transport layer of the TCP / IP (and / or UDP / IP) communication protocol stack in an upper layer (and / or session layer) Bridge the transport layer, network layer, MAC layer (and / or LLC layer) and physical layer of the protocol stack on the protocol stack.

The logical bridge function layer provided in an upper layer (and / or a sublayer included in a session layer) of the transport layer may be a communication packet provided to the session layer through a presentation layer at an application layer on the communication protocol stack. In addition to the function of transmitting and receiving to the TCP / IP (and / or UDP / IP) based wired communication network through the transport layer, network layer, MAC layer and physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack And bridging and transmitting the communication packet to a transport layer, a network layer, a MAC layer (and / or LLC layer), and a physical layer of a WLAN communication protocol stack provided in the card terminal 105. It is done.

If the network layer and the transport layer do not exist in the protocol stack corresponding to the WLAN communication unit 260 in the embodiment illustrated in FIG. 10C, the TCP / IP (and / or UDP / IP) based communication protocol stack The logical bridge function layer provided in an upper layer (and / or sublayer included in the session layer) of the transport layer of the transport layer, network layer, MAC of the TCP / IP (and / or UDP / IP) communication protocol stack It is possible to directly bridge the MAC layer (and / or LLC layer) and the physical layer of the layer and physical layer and the WLAN communication protocol stack provided in the card terminal 105 on the protocol stack, thereby limiting the present invention. No.

In FIG. 10C, the logical bridge function layer is illustrated as a sub-layer provided above the session layer for convenience, but the logical bridge function layer is a sub-layer existing between the session layer and the transport layer, and / or the session. It may be a sublayer provided below the hierarchy, and the present invention is not limited thereby.

Referring to FIG. 10D, the logical bridge functional layer is provided in an upper layer (and / or sub-layer included in the presentation layer) of the session layer, wherein the logical bridge functional layer is the session layer. At the upper layer (and / or presentation layer) of the physical layer, MAC layer, network layer, transport layer and session layer of the TCP / IP (and / or UDP / IP) communication protocol stack and the card terminal 105 Bridge the session layer, transport layer, network layer, MAC layer (and / or LLC layer) and the physical layer of the provided WLAN communication protocol stack on the protocol stack.

In addition, the logical bridge function layer provided in an upper layer (and / or sub-layer included in the presentation layer) of the session layer is a communication provided to the session layer through the presentation layer at the application layer on the communication protocol stack. Send packets to the TCP / IP (and / or UDP / IP) based wired network through the session layer, transport layer, network layer, MAC layer, and physical layer of the TCP / IP (and / or UDP / IP) communication protocol stack. In addition to the function of transmitting and receiving, the communication packet is bridged to the session layer, transport layer, network layer, MAC layer (and / or LLC layer) and the physical layer of the wireless LAN communication protocol stack provided in the card terminal 105 for transmitting and receiving Characterized in that further comprises.

If there is no network layer and / or transport layer and / or session layer in the protocol stack corresponding to the WLAN communication unit 260 in the method illustrated in FIG. 10D, the TCP / IP (and / or UDP) The logical bridge function layer provided at an upper layer (and / or sub-layer included in the presentation layer) of the session layer of the / IP) based communication protocol stack is the TCP / IP (and / or UDP / IP) communication protocol stack. To directly bridge the MAC layer (and / or LLC layer) and the physical layer of the WLAN communication protocol stack provided in the card terminal 105 with the session layer, the transport layer, the network layer, the MAC layer, and the physical layer. It is possible that the present invention is not limited thereby.

In FIG. 10D, the logical bridge functional layer is illustrated as a sub-layer provided above the presentation layer for convenience, but the logical bridge functional layer is a sub-layer existing between the presentation layer and the session layer, and / or The sublayer provided below the presentation layer may be used, and the present invention is not limited thereto.

11A and 11B illustrate a protocol stack structure in which a card terminal 105 having a bridge function of a communication protocol stack bridges a wireless LAN terminal 100 to a wired communication network according to another embodiment of the present invention. to be.

In more detail, FIGS. 11A and 11B show a bridge function of a communication protocol stack through a logical bridge function layer provided in an upper layer (and / or a sublayer of a network layer) of the data link layer as shown in FIG. 10A. Implementation of a protocol stack structure for bridging the wireless LAN terminal 100 to which the card terminal 105 and at least one wireless LAN communication channel are connected through the bridge function of the protocol stack according to the present invention in the provided card terminal 105. As an example, specifically, FIG. 11A shows an IEEE 802.11x standard in which the card terminal 105 is connected (and / or connected) to a wired communication network of TCP / IP (and / or UDP / IP). The logic of the WLAN terminal 100 to which a WLAN communication channel including at least one WLAN (or compatible) and / or Bluetooth and / or WiFi and / or UWB is connected. The protocol stack structure bridges the wired communication network of TCP / IP (and / or UDP / IP) through a bridge function layer, and FIG. 11B shows that the card terminal 105 is TCP / IP (and / or UDP / IP). At least one wireless LAN (WLAN) and / or Bluetooth and / or Wi-Fi and / or UWB compliant with (or compatible with) the IEEE 802.11x standard when connected (and / or connected) to a wired network The protocol stack structure for bridging the WLAN terminal 100 to which the WLAN communication channel is connected to the card terminal 105 through the logical bridge function layer.

Those skilled in the art (for example, those who understand the protocol stack structure) refer to and / or modify the drawings 11a and 11b to allow the card terminal 105 to transmit the TCP / IP. At least wireless LAN (WLAN) and / or Bluetooth and / or Wi-Fi and / or UWB compliant with (or compatible with) the IEEE 802.11x standard while connected to a network other than a wired network (and / or UDP / IP). Various implementation methods of bridging the WLAN terminal 100 connected to one or more WLAN communication channels including one or more through the logical bridge function layer may be inferred, but the present invention includes all the inferred implementation methods. It is not limited to the implementation method shown in FIG. 11A and FIG. 11B.

In addition, those skilled in the art (for example, those who understand the protocol stack structure), the logical bridge functional layer is linked to the data link by referring to and / or modified in this figure 11a and 11b. Other equivalent protocol layers (e.g., higher layers of the network layer (and / or sublayer of the transport layer), and / or higher layers of the transport layer (and / or Or a sub-layer of the session layer), and / or a higher-level layer of the session layer (and / or a sub-layer of the presentation layer), and the like. It includes all, and is not limited to the embodiment shown in Figures 11a and 11b.

Also, those skilled in the art (for example, those who understand the protocol stack structure) may refer to and / or modify the drawings 11a and 11b so that the logical bridge functional layer is located on the protocol stack. Various implementation methods (e.g., the logical bridge function layer is provided in the upper layer (and / or sub-layer of the network layer) of the wireless LAN communication means) provided in the mutually compatible protocol layer, wired communication means An implementation method provided at an upper layer (and / or a sublayer of a transport layer) of the network layer of the network layer, and / or the logical bridge function layer is an upper layer (and / or network layer) of the datalink layer of the WLAN communication means. Sublayer), and the upper layer (and / or the sublayer of the session layer) of the transport layer of the wired communication means. The method and / or the logical bridge function layer is provided in an upper layer (and / or a sublayer of the network layer) of the data link layer of the WLAN communication means, and an upper layer (and / or the session layer of the wired communication means). Or an implementation method provided in a sublayer of a presentation layer) or an implementation method provided in a mutually compatible protocol layer inferred from the illustrated embodiment method, but the present invention is inferred from the above. It includes all implementation methods, and is not limited to the implementation methods shown in FIGS. 11A and 11B.

11A and 11B, a protocol stack corresponding to the OSI 7 layer is provided in the WLAN terminal 100 to which the card terminal 105 and at least one WLAN communication channel are connected. It is only for easily explaining the technical features of the present invention to those skilled in the art to which the present invention pertains, the WLAN terminal 100 to which the card terminal 105 and at least one WLAN communication channel are connected. ) May be provided with only a predetermined physical layer and a MAC layer, and / or may be provided with a predetermined protocol layer above the physical layer and the MAC layer, and the protocol stack provided in the WLAN terminal 100 includes the OSI. It is not necessary to satisfy the seven-layer structure, whereby the present invention is not limited.

11A and 11B, if the person skilled in the art (for example, the protocol stack structure) understands, the packet generated by the card terminal 105 (for example, A packet including a payment approval request message) is transmitted to the van server 110 through a wired network based on a protocol stack, and / or a packet generated by the van server 110 (eg, including a payment approval message). Since the packet) will be familiar with the process of receiving the card terminal 105 through the wired communication network based on the protocol stack, a detailed description thereof will be omitted for convenience.

Wireless LAN (WLAN) conforming to (or compatible with) the IEEE 802.11x standard with the card terminal 105 connected (and / or connected) to a wired communication network of TCP / IP (and / or UDP / IP); A wireless LAN terminal 100 connected to a wireless LAN communication channel including at least one of Bluetooth and / or Wi-Fi and / or UWB is connected to the TCP / IP (and / or UDP / IP) through the logical bridge function layer. Referring to FIG. 11A illustrating a protocol stack structure for bridging a wired communication network, TCP / IP (and / or UDP /) to which the card terminal 105 is connected (and / or communicating) in the WLAN terminal 100 is illustrated. A packet to be transmitted to a server (and / or terminal) on a wired communication network of IP) is generated in an application layer provided in the WLAN terminal 100 and is provided to a lower layer of the next step while adding predetermined packet information. Repeatedly provided in the WLAN terminal 100 It reaches the physical layer of the protocol stack, MAC sub-layer.

Thereafter, the packet is provided to the card terminal 105 through a WLAN communication channel including a physical layer provided in the WLAN terminal 100 and a WLAN communication side physical layer provided in the card terminal 105. It is received at the WLAN communication side physical layer and flows into the logical bridge function layer via the WLAN communication side MAC layer provided in the card terminal 105.

The logical bridge function layer then bridges the incoming packet to a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 connects (and / or communicates). Or check whether the bridge to use in the application program provided in the card terminal 105.

If it is confirmed that the packet is bridged to a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 is connected (and / or communication connected), the logical bridge function layer is After further performing the packet structure conversion process according to an embodiment, the packet is provided to a network layer and a MAC layer of the TCP / IP (and / or UDP / IP) wired network side protocol stack, and the packet is transmitted to the TCP layer. The physical layer of the protocol stack on the / IP (and / or UDP / IP) wired network side and the network components (eg, hubs and / or routers, etc.) on the TCP / IP (and / or UDP / IP) wired network It is received to the physical layer (not shown) on the card terminal 105 side of the protocol stack provided in the relay server on the TCP / IP (and / or UDP / IP) wired communication network via the wired communication section including the physical layer.

Thereafter, the packet performs a packet checking procedure at a predetermined upper protocol layer (not shown) via the MAC layer (not shown) of the card terminal 105. The packet is a packet transmission target server provided on a wired communication network. And / or terminal).

Accordingly, the relay server is connected to the TCP / IP (and / or UDP / IP) wired network through the MAC layer (not shown) and the physical layer (not shown) of the server (and / or terminal) side of the relay server. The packet is transmitted to a physical layer on a protocol stack provided in a packet transmission target server (and / or a terminal) provided on the packet.

If the packet is generated in the card terminal 105 and transmitted through the wired communication network, and the destination of the packet is the van server 110, and / or payment approval for the electronic payment processing on the packet If the request message is included, the relay server includes the packet in the van server 110 through the MAC layer (not shown) and the physical layer (not shown) provided in the relay server. To the physical layer on the established protocol stack.

Subsequently, the packet received in the physical layer of the packet transmission target server (and / or terminal) provided on the wired communication network is provided in the server (and / or terminal) on the TCP / IP (and / or UDP / IP) wired communication network. The MAC layer, the data link layer, the network layer, the transport layer, the session layer, and the presentation layer on the protocol stack are provided to the application layer, and the application layer performs data processing corresponding to the packet.

In addition, transmission from the server (and / or terminal) on the wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 is connected (and / or communication connection) to the WLAN terminal 100 The packet to be generated is generated in an application layer provided in the server (and / or terminal), and the predetermined packet information is added to the next layer to repeat the process provided to the lower layer, thereby providing the server (and / or terminal). A packet arrives at the physical layer of the protocol stack, and then the packet is transmitted to a server (and / or terminal) on the TCP / IP (and / or UDP / IP) wired network and the TCP / IP (and / or UDP / IP) wired network. Wireless LAN communication provided to the card terminal 105 by being received at the physical layer of the protocol stack of the TCP / IP (and / or UDP / IP) wired communication network side provided to the card terminal 105 via a network component on the network. It enters the logical bridge function layer via the side MAC layer.

Thereafter, the logical bridge function layer bridges the incoming packet to the WLAN terminal 100 to which the WLAN terminal 100 is connected to the card terminal 105, and / or is provided to the card terminal 105. Make sure to bridge it for use by your application.

If it is confirmed that the packet is bridged to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected, the logical bridge function layer further performs the packet structure conversion process according to an implementation method. After performing the packet, the packet is transmitted to the WLAN terminal 100 through a WLAN communication channel including a physical layer of the protocol stack of the WLAN communication side and a protocol stack provided in the WLAN terminal 100. Received to the physical layer on the provided protocol stack.

Thereafter, the packet is provided to an application layer through a MAC layer, a data link layer, a network layer, a transport layer, a session layer, and a presentation layer on a protocol stack provided in the WLAN terminal 100. Perform data processing corresponding to the packet.

Wireless LAN (WLAN) conforming to (or compatible with) the IEEE 802.11x standard with the card terminal 105 connected (and / or connected) to a wired communication network of TCP / IP (and / or UDP / IP); And / or a protocol stack structure for bridging a wireless LAN terminal 100 connected to a wireless LAN communication channel including at least one of Bluetooth and / or Wi-Fi and / or UWB to the card terminal 105 through the logical bridge function layer. Referring to FIG. 11B, a server (and / or a server) on a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 is connected (and / or communicated) in the WLAN terminal 100 is provided. Packet is transmitted to the WLAN terminal 100 by repeating the process of being generated in an application layer included in the WLAN terminal 100 and providing predetermined packet information to a lower layer of a next step. MAC layer of the protocol stack After reaching a lower physical layer, the packet is transmitted through a WLAN communication channel including a physical layer provided in the WLAN terminal 100 and a WLAN communication side physical layer provided in the card terminal 105. It is received by the wireless LAN communication side physical layer provided in the card terminal 105 and flows into the logical bridge function layer via the wireless LAN communication side MAC layer provided in the card terminal 105.

The logical bridge function layer then bridges the incoming packet to a wired communication network of TCP / IP (and / or UDP / IP) to which the card terminal 105 connects (and / or communicates). Or check whether the bridge to use in the application program provided in the card terminal 105.

If it is confirmed that the packet is bridged to the card terminal 105, the logical bridge function layer further performs the packet structure conversion process according to an implementation method, and then transfers the packet to the card terminal 105. The application layer is provided to an application layer through a transport layer, a session layer, and a presentation layer on the protocol stack, and the application layer performs data processing corresponding to the packet.

In addition, the packet to be transmitted from the card terminal 105 to the WLAN terminal 100 is generated in the application layer provided in the card terminal 105, and the predetermined packet information is added to the lower layer of the next step. The process is repeated to flow into the logical bridge function layer.

Thereafter, the logical bridge function layer bridges the incoming packet to the WLAN terminal 100 connected to the card terminal 105 and the WLAN communication channel, and / or the card terminal 105 is connected ( And / or bridge to a wired network of TCP / IP (and / or UDP / IP).

If it is confirmed that the packet is bridged to the WLAN terminal 100 to which the card terminal 105 and the WLAN communication channel are connected, the logical bridge function layer further performs the packet structure conversion process according to an implementation method. After performing the packet, the packet is transmitted to the WLAN terminal 100 through a WLAN communication channel including a physical layer of the protocol stack of the WLAN communication side and a protocol stack provided in the WLAN terminal 100. Received to the physical layer on the provided protocol stack.

Thereafter, the packet is provided to an application layer through a MAC layer, a data link layer, a network layer, a transport layer, a session layer, and a presentation layer on a protocol stack provided in the WLAN terminal 100. Perform data processing corresponding to the packet.

12 is a diagram illustrating a process of loading a logical bridge function layer that provides a bridge function of a communication protocol stack to a card terminal 105 according to another embodiment of the present invention.

More specifically, FIG. 12 shows a bridge function of a communication protocol stack according to the present invention (for example, including a logical bridge function layer) during the system booting process in the card terminal 105 shown in FIG. As shown in FIG. 12, a preferred method of driving a protocol processing routine to be loaded into the control unit 205 included in the card terminal 105 will be described by those skilled in the art. While various implementations may be inferred by referring and / or modifying the card terminal 105 to load a logical bridge function layer that provides a bridge function of a communication protocol stack, the present invention encompasses all inferred implementation methods. The present invention is not limited to the implementation method shown in FIG.

For example, a person of ordinary skill in the art may refer to and / or modify this drawing 12 to integrate a predetermined communication protocol stack after the card terminal 105 shown in FIG. 9 is system booted. A method of loading a protocol processing routine (eg, including a logical bridge function layer) equipped with a bridge function of the communication protocol stack according to the present invention to the control unit 205 provided in the card terminal 105 via a processing command. It may be inferred that, but the present invention includes all the implementation method inferred above, and is not limited to the implementation method shown in FIG.

Referring to FIG. 12, while a predetermined power is supplied to the card terminal 105 to perform a system booting procedure (1200), the card terminal 105 establishes a logical bridge function layer according to the present invention during the system booting. A protocol processing routine, which is included, is loaded into the control unit 205 (1205).

Thereafter, the card terminal 105 extracts communication parameter information corresponding to a predetermined wired communication network from the memory unit 255 (1210), and includes it in the loaded protocol processing routine based on the extracted communication parameter information. A connection (and / or communication connection) to the wired communication network is attempted through the logical bridge functional layer (1215).

If a connection (and / or communication connection) attempt to the communication network is successful (1220), the card terminal 105 establishes at least one WLAN communication channel (eg, WLAN) with at least one WLAN terminal 100. The communication channel, the wireless LAN communication channel, etc.) is periodically checked whether the connection (1225).

If at least one WLAN terminal 100 and at least one WLAN communication channel are not connected (1230), the card terminal 105 performs a predetermined electronic payment processing function provided in the card terminal 105. It is checked whether or not (1235).

According to an exemplary embodiment of the present invention, the electronic payment processing function provided in the card terminal 105 may allow the user of the card terminal 105 to input the electronic payment processing execution command, thereby allowing the electronic terminal to accept the electronic payment. It is preferred that the treatment procedure be initiated.

According to another exemplary embodiment of the present invention, the electronic payment processing function provided in the card terminal 105 may include a predetermined customer-owned card (eg, an MS card provided with at least one or more payment means, and / or a contact IC card). It is preferable to start by reading predetermined card information (and / or payment means information) from the and / or contactless IC card through the card reader provided in the card terminal 105.

If a predetermined electronic payment processing function is not performed in the card terminal 105 (for example, at least one wireless LAN terminal 100 and a wireless LAN communication channel are not connected, and the electronic device provided in the card terminal 105 is provided). If the payment processing function is also not performed) (1240), the card terminal 105 is a process of confirming that at least one or more of the wireless LAN terminal 100 and the wireless LAN communication channel is connected to the electronic device provided in the card terminal 105 The process of confirming that the payment processing function is performed is periodically repeated.

If a predetermined electronic payment processing function is performed in the card terminal 105 (1240), the card terminal 105 performs the electronic payment processing procedure and whether a predetermined packet corresponding to the electronic payment processing is generated. Check whether or not (1245).

According to an exemplary embodiment of the present invention, a predetermined packet corresponding to the electronic payment processing may include a payment approval request text generated by the card terminal 105 for the electronic payment processing through a payment communication network including the wired communication network. It is preferable to include a communication packet transmitted to the predetermined payment server 115 via the van.

According to another exemplary embodiment of the present invention, when the card terminal 105 provides an electronic payment processing function of a shadow account method (for example, payment processing is performed in the card terminal 105, such as a prepaid card payment). Is provided in an offline state and is provided with an electronic payment process in which the payment processing result is periodically transmitted through a van to a predetermined payment server 115 through a payment communication network including the wired communication network). In the process of performing the payment processing function, a predetermined packet may not be generated, thereby the present invention is not limited.

If a packet corresponding to the electronic payment processing is not generated until all of the electronic payment processing function processing procedures are performed (1250), the card terminal 105 completes the execution of the electronic payment processing procedure (1255). The process of checking whether the at least one WLAN terminal 100 and the WLAN communication channel are also connected and the process of confirming that the electronic payment processing function provided in the card terminal 105 is performed are periodically repeated.

If a packet corresponding to the electronic payment processing is generated until all of the electronic payment processing procedures are performed (1250), the card terminal 105 is generated in response to the electronic payment processing through the logical bridge function layer. Waiting for the packet to process the bridge function of the protocol stack according to the present invention (1260), the bridge function of the protocol stack according to the present invention is initiated by the packet entering the logical bridge function layer on the protocol stack. A preferred bridging process for a packet generated corresponding to the electronic payment process will be described in detail with reference to FIG. 14 shown below.

On the other hand, if the card terminal 105 is determined that at least one WLAN terminal 100 and at least one WLAN communication channel is connected (1230), the card terminal 105 is a bridge function of the protocol stack according to the present invention In order to provide an address, an address allocation procedure for the WLAN terminal 100 to which the WLAN communication channel is connected is performed (1265).

According to an embodiment of the present invention, the address assignment procedure for the WLAN terminal 100 may include a predetermined address obtained in correspondence with the address processing information in the WLAN terminal 100 to which the WLAN communication channel is connected. It is desirable to include a procedure for direct assignment.

According to another exemplary embodiment of the present invention, the address assignment procedure for the WLAN terminal 100 may include: a predetermined address obtained in correspondence with the address processing information to the WLAN terminal 100 to which the WLAN communication channel is connected; It is desirable to include a procedure for logically allocating a.

If the address allocation to the WLAN terminal 100 is completed (1270), the card terminal 105 is a protocol stack according to the present invention for the packet transmitted and received in the WLAN communication channel through the logical bridge function layer Waiting for the bridge function processing of the (1275), the bridge function of the protocol stack according to the present invention is initiated by the packet entering the logical bridge function layer on the protocol stack, the packet is transmitted and received in the WLAN communication channel Preferred bridging process will be described in detail with reference to FIGS. 13A and 13B shown below.

13A and 13B illustrate an operation process of a card terminal 105 that provides a bridge function for a packet transmitted and received on a WLAN communication channel connected to a card terminal 105 through a logical bridge function layer according to another embodiment of the present invention. Figure is a diagram.

13A and 13B illustrate a logical bridge function layer for providing a bridge function of a protocol stack according to the present invention through a process as shown in FIG. 12 in the card terminal 105 shown in FIG. FIG. 13A illustrates a preferred method for providing a bridge function of a protocol stack according to the present invention with respect to packets transmitted and received through at least one wireless LAN communication channel connected to the card terminal 105. Specifically, FIG. FIG. 13A illustrates a method for bridging a packet introduced into the logical bridge function layer through a LAN communication channel to a wired communication network to which the card terminal 105 is connected (and / or connected). At least a packet introduced into the logical bridge functional layer through a communication network is connected to the card terminal 105. An embodiment of the present invention relates to a method for bridging a protocol stack to a WLAN communication channel that should receive the packet among one or more WLAN communication channels.

Those skilled in the art to which the present invention pertains, the packet is transmitted and received in the wireless LAN communication channel connected to the card terminal 105 through the logical bridge functional layer by referring to and / or modified in this figure 13a and 13b. Various implementation methods for providing a bridge function for the present invention may be inferred, but the present invention includes all the implementation methods inferred above and is not limited to the implementation methods shown in FIGS. 13A and 13B.

Referring to FIG. 13A, when the logical bridge function layer providing the bridge function of the protocol stack according to the present invention is loaded into the card terminal 105 through the same process as that of FIG. 12, the card terminal 105 is connected to the wireless terminal. It is checked whether a predetermined packet is received from the WLAN terminal 100 through the LAN side physical layer and the MAC layer and flows into the logical bridge function layer (1300a).

If the packet received from the WLAN terminal 100 flows into the logical bridge function layer (1305a), the card terminal 105 includes at least one packet included in the incoming packet through the logical bridge function layer. By reading information (e.g., packet identifier, and / or packet sender address, and / or packet receiver address, etc.), the card terminal 105 connects (and / or packets) to the logical bridge function layer. It is checked whether or not to bridge to a wired communication network (communication connection) (1310a).

If the packet flowing into the logical bridge functional layer is not bridged to the wired network on the protocol stack (1315a), the card terminal 105 passes the packet through the logical bridge functional layer to an upper protocol layer of the protocol stack. For example, the card terminal 105 receives the packet and provides the packet to the application layer (and / or protocol layer corresponding to the electronic payment processing terminal program) to be processed (1320a), whereby the packet is transmitted to the card terminal ( 105 is provided to an application program (and / or an electronic payment processing terminal program) to receive and process the packet, and then the card terminal 105 (e.g., an application program to receive and process the packet (and / or electronic). The payment processing terminal program) performs a predetermined data processing procedure for the data included in the packet (1325a).

According to an embodiment of the present invention, the data included in the packet may include data for requesting the WLAN terminal 100 to connect a predetermined WLAN communication channel to the card terminal 105. In this case, The application program (and / or the electronic payment processing terminal program) that receives the packet performs a data processing procedure for connecting the WLAN terminal 100 to a predetermined WLAN communication channel.

In addition, the data included in the packet is a wired communication network to which the card terminal 105 is connected (and / or communication connection) by the WLAN terminal 100 to which the WLAN communication channel is connected through the card terminal 105. It may include data for requesting an address assignment for accessing (and / or communication connection) to, and in this case, the application program (and / or terminal program for electronic payment processing) receiving the packet is the wireless LAN terminal ( Perform a data processing procedure for address allocation requested from 100).

On the other hand, if a packet introduced into the logical bridge functional layer is bridged to the wired communication network on a protocol stack (1315a), the card terminal 105 checks whether or not to convert the packet structure for the bridge target packet through the logical bridge functional layer. (1330a).

If it is determined that the packet structure of the bridge target packet needs to be converted (1335a), the card terminal 105 converts the bridge target packet into a packet structure that can be transmitted to the wired communication network through the logical bridge function layer. (1340a).

On the other hand, if it is determined that the packet structure of the bridge target packet is not converted (1335a), and / or the bridge target packet is converted into a packet structure that can be transmitted to the wired communication network (1340a), the card terminal 105 (1345a) bridges the packet on a protocol stack by providing the packet to the physical layer and the wired network side MAC layer to which the card terminal 105 connects (and / or communicates) through the logical bridge function layer. To the wired communication network.

Thereafter, the wired communication network is transmitted from the card terminal 105 (for example, the protocol stack provided in the card terminal 105 by being transmitted from the WLAN terminal 100 to which the card terminal 105 and the wireless LAN communication channel are connected). A packet transmitted to a wired communication network through a bridge function of the network 1300a), and then the relay server relays the received packet to the van server 110, and / or The relay server confirms that the received packet is received from the WLAN terminal 100 to which the card terminal 105 and the predetermined WLAN communication channel are connected. do.

Accordingly, the relay server relays the received packet to the packet transmission target server (and / or terminal) (1355a), and the server (and / or terminal) that receives the packet processes information corresponding to the packet. Perform a function, generate a predetermined packet including the information processing result (1360a), and transmit the packet generated including the information processing result to the card terminal 105 through the wired communication network and the relay server. 1365a, the card terminal 105 receiving the packet provides the packet to the WLAN terminal 100 through a bridge function of the protocol stack as shown in FIG.

Referring to FIG. 13B, if the logical bridge function layer providing the bridge function of the protocol stack according to the present invention is loaded into the card terminal 105 through the same process as that of FIG. It is checked whether a predetermined packet is received from a server (and / or a terminal) on the wired communication network through the wired network side physical layer and the MAC layer and flows into the logical bridge function layer (1300b).

If the packet received from the WLAN terminal 100 flows into the logical bridge function layer (1305b), the card terminal 105 includes at least one packet included in the incoming packet through the logical bridge function layer. By reading the information (e.g., packet identifier, and / or packet sender address, and / or packet receiver address, etc.), a wireless LAN communication channel connected to the card terminal 105 for the packet introduced into the logical bridge function layer It is checked whether or not to bridge (1310b).

If the packet flowing into the logical bridge function layer is not bridged to the WLAN communication channel on the protocol stack (1315b), the card terminal 105 passes the packet through the logical bridge function layer to a higher protocol of the protocol stack. A layer (e.g., a protocol layer corresponding to an application program (and / or a terminal program for electronic payment processing) to receive and process the packet at the card terminal 105), thereby providing the packet to the card (1320b). The terminal 105 is provided to an application program (and / or a terminal program for electronic payment processing) to receive and process the packet, and then the card terminal 105 (eg, an application program to receive and process the packet). Or electronic payment processing terminal program)) performs a predetermined data processing procedure for the data included in the packet (1325b).

According to an embodiment of the present invention, the data contained in the packet is sent from the card terminal 105 to the payment server 115 via the van via the wired network to perform the electronic payment processing shown in FIG. Preferably, the payment includes a payment approval message corresponding to the full payment approval request message, and the card terminal 105 having received the payment approval message transmits the payment approval result data included in the payment approval message to the card terminal 105. Perform a data processing procedure of outputting to a screen output device provided in the) and / or printing and printing on a predetermined receipt.

On the other hand, if a packet introduced into the logical bridge function layer is bridged to the WLAN communication channel on a protocol stack (1315b), the card terminal 105 includes at least one packet information included in the packet through the logical bridge function layer. (E.g., packet identifier, and / or packet sender address, and / or packet receiver address, etc.) to receive and process the packet among at least one wireless LAN communication channel connected to the card terminal 105. Check the WLAN communication channel (1330b).

Thereafter, the card terminal 105 determines whether to convert the packet structure of the bridge target packet into a packet structure that can be transmitted to the WLAN communication channel through the logical bridge function layer (1335b).

If the check result indicates that the packet structure of the bridge target packet needs to be converted (1340b), the card terminal 105 has a packet structure capable of transmitting the bridge target packet to the WLAN communication channel through the logical bridge function layer. The conversion is made (1345b).

On the other hand, if it is determined that the packet structure of the bridge target packet is not converted (1340b), and / or the bridge target packet is converted into a packet structure that can be transmitted through the WLAN communication channel (1345b), the card terminal 105 transmits the packet to the WLAN communication channel side MAC layer and the physical layer to which the card terminal 105 connects (and / or communicates) through the logical bridge function layer (1350b). It is bridged on a protocol stack and transmitted to the WLAN communication channel.

14 is a diagram illustrating an operation of a card terminal 105 that provides a bridge function for a packet generated in the card terminal 105 through a logical bridge function layer according to another embodiment of the present invention.

In more detail, FIG. 14 illustrates that the card terminal 105 shown in FIG. 9 is loaded with a logical bridge function layer that provides a bridge function of a protocol stack according to the present invention through a process as shown in FIG. A preferred method of providing a bridge function of a protocol stack according to the present invention for a packet generated while performing a predetermined electronic payment processing function (and / or a unique function of the card terminal 105) included in the terminal 105 is provided. As illustrated, those of ordinary skill in the art to which the present invention pertains are referred to and / or modified with reference to FIG. 14 to transmit / receive a wireless communication channel connected to a card terminal 105 through the logical bridge function layer. It would be possible to infer various implementation methods that provide a bridge function for a packet, but the present invention includes all implementation methods inferred from the above. It is not limited to the implementation method shown in FIG.

Referring to FIG. 14, when the logical bridge function layer providing the bridge function of the protocol stack according to the present invention is loaded into the card terminal 105 through the same process as that of FIG. In operation 1400, it is checked whether a packet generated corresponding to a predetermined electronic payment processing function (and / or a unique function of the card terminal 105) included in the terminal 105 flows into the logical bridge function layer.

If a packet generated corresponding to a predetermined electronic payment processing function (and / or a unique function of the card terminal 105) included in the card terminal 105 flows into the logical bridge function layer (1405), the card terminal 105 reads at least one or more packet information (eg, packet identifier, and / or packet sender address, and / or packet receiver address, etc.) included in the incoming packet via the logical bridge function layer; In operation 1410, it is determined whether the packet introduced into the logical bridge function layer is bridged into the wireless LAN communication channel connected to the card terminal 105.

According to an embodiment of the present invention, a packet approval request generated in response to the electronic payment processing function is transmitted from the card terminal 105 to the predetermined payment server 115 via the wired communication network and the van server 110. It is preferable to include the full text.

If the packet flowing into the logical bridge function layer is not bridged to the WLAN communication channel on a protocol stack (1415), the card terminal 105 passes the packet through the logical bridge function layer to the card terminal 105. By providing this connected (and / or communication connection) to the wired network side MAC layer and the physical layer (1420), the packet is bridged on a protocol stack and transmitted to the wired network.

According to an embodiment of the present invention, a packet provided to the wired communication network side MAC layer and the physical layer and transmitted to the wired communication network is transferred from the card terminal 105 to the predetermined payment server via the wired communication network and the van server 110. It is preferable to include the full payment approval request to be sent to (115).

Thereafter, the wired communication network transmits a packet transmitted from the card terminal 105 (for example, a packet generated in response to an electronic payment process) to a predetermined relay server (1425), and the relay server then receives the received packet. Whether or not to relay to the van server 110 and / or to a predetermined transmission target server (and / or terminal), the relay server transmits the received packet to the electronic payment process. Confirm with

Accordingly, the relay server relays the received packet to the van server 110 (1430), and the van server 110 receiving the packet transmits the packet (and / or the full payment approval request) to the payment. The payment server 115 which transmits to the server 115 (1435) and receives the packet (and / or payment approval request full text) performs an electronic payment processing procedure corresponding to the payment approval request full text included in the packet. After generating a packet corresponding to the electronic payment processing result (eg, a packet including a payment approval message) (1440), the packet generated corresponding to the electronic payment processing result is wired through the van server 110. The card terminal 105 is transmitted to the card terminal 105 through a communication network (1445), and the card terminal 105 receiving the packet completes the electronic payment processing procedure through the bridge function of the protocol stack as shown in FIG. 13B. .

On the other hand, if the packet introduced into the logical bridge functional layer is bridged to the WLAN communication channel on the protocol stack (1415), the card terminal 105 is the card terminal 105 to the packet through the logical bridge functional layer At least one WLAN communication channel connected to the card terminal 105 by reading at least one packet information included (eg, packet identifier, and / or packet sender address, and / or packet receiver address). In step 1450, a predetermined WLAN communication channel for receiving and processing the packet is identified.

According to an embodiment of the present invention, a packet to be bridged and transmitted to the WLAN communication channel transmits a response (and / or a WLAN communication channel connection result) to the WLAN communication channel connection request requested from the WLAN terminal 100. Preferably, the wireless LAN terminal 100 receiving the packet is connected to the wired communication network to which the card terminal 105 connects (and / or communicates) through the wireless LAN communication channel. Or further performing an address assignment procedure for communication connection, and / or using the bridge function of the protocol stack provided in the card terminal 105 through the wireless LAN communication channel. And / or communication connection) A predetermined communication channel may be connected to at least one server (and / or terminal) provided on the wired communication network.

In addition, a packet to be transmitted by bridging to the WLAN communication channel is connected to the card terminal 105 by the WLAN terminal 100 to which the WLAN communication channel is connected through the card terminal 105 (and / or communication connection). And a response (and / or address assignment information, and / or address assignment result) corresponding to the requested address assignment request to access (and / or connect to) the wired communication network. The allocated WLAN terminal 100 connects (and / or communicates with) the card terminal 105 using a bridge function of a protocol stack provided in the card terminal 105 through the WLAN communication channel. A predetermined communication channel may be connected to at least one server (and / or terminal) provided on the wired communication network.

Thereafter, the card terminal 105 determines whether to convert the packet structure of the bridge target packet into a packet structure that can be transmitted to the WLAN communication channel through the logical bridge function layer (1455).

If it is determined that the packet structure of the bridge target packet is to be converted (1460), the card terminal 105 may transmit the bridge target packet to the WLAN communication channel through the logical bridge function layer. (1465).

On the other hand, if it is determined that the packet structure of the bridge target packet is not converted (1460), and / or the bridge target packet is converted into a packet structure that can be transmitted to the WLAN communication channel (1465), the card terminal 105 transmits the packet to the WLAN communication channel side MAC layer and the physical layer to which the card terminal 105 connects (and / or communicates) through the logical bridge function layer (1470). It is bridged on a protocol stack and transmitted to the WLAN communication channel.

15 is a diagram showing a process of loading a program for providing a bridge function of a communication protocol stack in a card terminal 105 according to a preferred embodiment of the present invention.

In more detail, Fig. 15 shows a predetermined program corresponding to the bridge function of the communication protocol stack according to the present invention by connecting to a predetermined ESD server through the communication network currently connected by the card terminal 105 connected to the predetermined communication network. By downloading and mounting, the process of having a bridge function of the communication protocol stack as shown in Figure 2 to connect to the network configuration as shown in Figure 1, having a common knowledge in the art In this regard, various implementation methods for a program loading process for providing a bridge function of a communication protocol stack to the card terminal 105 may be inferred by referring to and / or modifying the present invention. It includes all the implementation methods, and is not limited to the implementation method shown in FIG.

In the following figure, the ESD server is referred to as " server " for convenience, and the card terminal 105 is referred to as " terminal " for convenience.

Referring to FIG. 15, the terminal accesses the server through a currently connected communication network, connects a predetermined communication channel, and performs a membership registration and / or login procedure with the server (1500). In order to download and mount a predetermined program corresponding to the bridge function of the communication protocol stack, the server requests a network-based program to be loaded (1505), and correspondingly, the server inputs and provides predetermined terminal information to the terminal. The terminal provides a terminal information providing interface (1510), and the terminal inputs (or selects or extracts from, or extracts) the terminal information through the terminal information providing interface to the server through the communication network (1515). ).

Here, the terminal information includes at least one device model information and / or operating system information for the terminal.

According to another exemplary embodiment of the present invention, the server does not provide the terminal information providing interface to the terminal, and a network operating apparatus (eg, the CDMA-based mobile terminal is a mobile communication terminal) on the communication network to which the terminal is currently connected. When connected to a communication network, it is possible to extract terminal information corresponding to the terminal from at least one or more of the HLR / VLR (Home Location Register / Visitor Location Register) provided in the mobile communication network. It is not limited.

When the terminal information is obtained as described above, the server reads the terminal information and checks whether the program corresponding to the bridge function of the communication protocol stack can be downloaded to the terminal through the communication network (1520).

According to an embodiment of the present invention, in order to download and mount a program corresponding to a bridge function of a communication protocol stack to the terminal, the terminal may be software-connected to connect to at least two communication networks through the bridge function of the communication protocol stack. A controlled communication module (for example, in the case of a wireless communication module, should be provided with a software module for controlling frequency bands and / or for controlling a part of a communication protocol layer), the server may include the terminal information. It is preferable to confirm whether the program corresponding to the bridge function of the communication protocol stack can be downloaded and mounted to the terminal by checking the device model information from the terminal.

Also, in order to download and mount a program corresponding to a bridge function of a communication protocol stack to the terminal, the terminal may be operated on an operating system corresponding to the terminal on the server (or a predetermined database associated with the server). A predetermined program should be provided. It is preferable that the server checks the operating system information from the terminal information to check whether the program corresponding to the bridge function of the communication protocol stack can be downloaded and loaded into the terminal.

If the check result indicates that the program corresponding to the bridge function of the communication protocol stack cannot be downloaded and mounted to the terminal (1525), the server generates predetermined program loading error information and transmits the predetermined program loading error information to the terminal through the communication network. The process of downloading and loading the program corresponding to the bridge function of the communication protocol stack to the terminal is completed (1530).

On the other hand, if it is determined that the program corresponding to the bridge function of the communication protocol stack can be downloaded and mounted to the terminal (1525), the server downloads a predetermined program file designed to provide the bridge function of the communication protocol stack to the terminal. Extract (eg, extract from the database in which the terminal information and the program file are stored in association with each other) (1535), and transmit the extracted program file to the terminal through the communication channel (1540).

The terminal receiving the program file drives the program file to back up a program file corresponding to a protocol layer that is pre-installed and operated in the terminal (eg, connecting a communication channel between the terminal and the server). (1545).

According to an embodiment of the present invention, a method of backing up a program file corresponding to a protocol layer already installed and operating in the terminal, wherein the driven program file disconnects the communication channel between the terminal and the server, It is preferable that the terminal comprises releasing the network connection to the currently connected communication network, terminating the program corresponding to the protocol layer already installed and operating in the terminal, and then changing the name of the terminated program file. Do.

Thereafter, the terminal processes the protocol layer program corresponding to the driven program file as the backed up file (for example, a protocol layer program file that was previously installed and operated in the terminal) and installs it in the terminal (1550).

If the new protocol layer program installation procedure is completed (1555), the terminal performs a system reboot procedure for updating the protocol layer by the driven program file (1560).

According to another exemplary embodiment of the present invention, when the terminal can update the program without system rebooting, the system rebooting procedure may be omitted, and the present invention is not limited thereto.

According to the present invention, the card terminal having a function of accessing at least one wired communication network and at least one local area communication function is equipped with a logical bridge function layer that provides a bridge function of the protocol stack in a card terminal located at an affiliated store. An advantage of providing a virtual WLAN access point function for connecting a wired communication network to at least one wireless LAN terminal located in the affiliate store while the terminal performs an electronic payment function provided in the card terminal using a wired communication network as a value added communication network. There is this.

Claims (3)

A wireless LAN communication unit for connecting wireless LAN communication; A communication processing unit for connecting to at least one wired communication network; The wireless LAN communication unit and the communication processing unit have an equivalent layer on a protocol stack, In the card terminal for processing the electronic payment through the communication processing unit, When the packet is received from the wired communication network to the physical layer of the protocol stack corresponding to the communication processor through the communication processor, and the received packet flows into a specific upper layer according to the protocol stack, the packet information is read and the packet is read. A bridge checking unit for confirming whether the packet corresponds to the electronic payment processing, and if the packet does not correspond to the electronic payment processing, bridges the packet to an equivalent layer on a protocol stack corresponding to the wireless LAN communication unit; As a result of confirming the bridge checking unit, when the packet is bridged to a protocol stack corresponding to the wireless LAN communication unit, a packet introduced into a specific layer on a protocol stack corresponding to the communication processing unit may have A protocol conversion unit converting the packet structure; And And a bridge function unit for bridging the converted packet to a protocol stack of an equivalent layer corresponding to the wireless LAN communication unit. The card terminal having a virtual wireless LAN access point function using a wired communication network. delete The method of claim 1, wherein the bridge function unit, When a packet received in the physical layer of the protocol stack corresponding to the communication processor flows into the data link layer, Bridge the packet to a data link layer of a protocol stack corresponding to the WLAN communication unit, or a protocol corresponding to a data link layer of the protocol stack corresponding to the communication processing unit on a protocol stack corresponding to the WLAN communication unit. It is characterized by bridge to the layer, When a packet received in the physical layer of the protocol stack corresponding to the communication processor flows into the network layer, Bridge the packet to a network layer of a protocol stack corresponding to the WLAN communication unit, or on a protocol stack corresponding to the WLAN communication unit, to a protocol layer equivalent to a network layer of a protocol stack corresponding to the communication processing unit. Characterized by bridge, When a packet received in the physical layer of the protocol stack corresponding to the communication processor flows into the transport layer, Bridge the packet to a transport layer of a protocol stack corresponding to the WLAN communication unit, or a protocol layer corresponding to a transport layer of a protocol stack corresponding to the communication processor on a protocol stack corresponding to the WLAN communication unit. Characterized by bridge, When a packet received in the physical layer of the protocol stack corresponding to the communication processor flows into the session layer, Bridge the packet to a session layer of a protocol stack corresponding to the WLAN communication unit, or on a protocol stack corresponding to the WLAN communication unit, to a protocol layer equivalent to the session layer of the protocol stack corresponding to the communication processing unit. Characterized by bridge, When a packet received in the physical layer of the protocol stack corresponding to the communication processor flows into the presentation layer, Bridge the packet to the presentation layer of the protocol stack corresponding to the WLAN communication unit, or a protocol corresponding to the presentation layer of the protocol stack corresponding to the communication processing unit on the protocol stack corresponding to the WLAN communication unit. Card terminal having a virtual wireless LAN access point using a wired communication network characterized in that the bridge to the layer.

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