KR100400719B1 - Mobile Internet in Mobile communication Network and Communication Method Thereof - Google Patents

Abstract

The present invention provides a mobile host that is given an IP (Internet Protocol) address using a subscriber information processing unit (HLR) and a network interworking unit (IWU) provided in a conventional code division multiple access mobile telephone network and a personal mobile communication network. The present invention relates to a mobile internet using a mobile communication network that can communicate using an existing IP address even if it moves to another network without being fixed to a specific network, and a communication method using the same. The present invention relates to a mobile Internet comprising a plurality of unit mobile Internets composed of a plurality of mobile hosts, a plurality of mobile access points, a plurality of mobile routers, and a plurality of Internet gateway routers. Determining whether the communication requested by the operation signal of the originating host is communication between a host of the unit mobile internet and a host of the fixed internet or a mobile host of the unit mobile internet, and the currently requested communication is the mobile host. And if it is determined that the communication with the fixed host is carried out, all data transmitted from or to the mobile host are carried out through a home gateway router to which the mobile host belongs; If it is determined that the communication between the Selecting a service option, and by using a method that calls a subscriber number of a call a mobile node comprises the step of conducting communication.

Description

Mobile Internet in Mobile Communication Network and Communication Method Thereof {Mobile Internet in Mobile communication Network and Communication Method Thereof}

The present invention relates to a mobile Internet (Mobile Internet) using a mobile communication network and a communication method using the same, and more particularly, the subscriber information processing device provided in the existing code division multiple access mobile telephone network and personal mobile communication network Even if a mobile host assigned an Internet Protocol (IP) address using a Home Location Register (HLR) and an Inter-Working Unit (IWU) moves to another network without being fixed to a specific network, the existing IP address It relates to a mobile Internet (Mobile Internet) using a mobile communication network that can communicate using and a communication method using the same.

In general, the Internet is based on the TCP / IP communication protocol between a plurality of host networks divided by Internet protocol addresses (hereinafter referred to as IP addresses) and a plurality of hosts having individual IP addresses provided in each unit network. It is a data communication network capable of performing data communication. Here, the host means that a computer or a computer having a communication modem and a telephone are connected, and mutual communication is possible only with a unique IP address assigned to each host.

In a conventional data communication network using the Internet, communication between fixed hosts is mainly used. However, thanks to the recent rapid development of the information and telecommunications industry, mobile IP technology, in which a variety of mobile hosts combined with portable computers and mobile terminals, provides an Internet access service using an existing IP address even in a location outside of its own network. This has been proposed.

The Internet Engineering Task Force (IETF) mobile IP technology proposed so far uses a method of adding a mobile agent system to each communication network and at the same time adding a communication protocol between the mobile host and the mobile agent system. have.

The conventional data communication network using the Internet includes a plurality of unit networks including a mobile agent system and connected to a plurality of hosts, and an internet connected to the network. At this time, when a mobile host having a unique IP address of the unit network moves to another network, the corresponding mobile agent system manages information on the movement of the mobile host and the current IP address. Data communication in this case is carried out using a communication protocol added between the mobile host and the mobile agent system.

Here, the mobile agent system can be divided into a home agent and an external agent in terms of its functionalities. The home agent manages IP addresses of all its hosts registered in a unit network such as a local area network (LAN) or a wide area network (WAN). In addition, the home agent registers the actual IP address of the currently temporarily connected network as a care of address when the mobile host moves to another network. In this case, when data arrives at the original IP address of the mobile host, the home agent forwards the arrived data to the care-of address where the current mobile host is located.

On the other hand, the foreign agent moves from its home network or another external network to its own network and manages the address and location of the mobile host temporarily connected to a specific IP address of its own network. Therefore, when any mobile host temporarily leaves the home network and is connected to the external network, when data arrives at the IP address of the mobile host of the home network, the mobile agent of the home network is temporarily connected to a specific address of the external network. Passes data to the mobile host.

In order to execute the mobile IP, the mobile agent of the home network broadcasts its current location information to the mobile host in the home network, and the IP of the home network originally registered from the outside when the mobile host is connected to the external network. When an IP datagram arrives at an address, the mobile agent must add the capability to forward the IP datagram to the mobile host temporarily connected to the external network by tunneling.

1 is a block diagram showing a connection state of a data communication network using a conventional Internet.

Referring to FIG. 1, when an arbitrary host HT11 is registered in the network LAN / WAN 1 and has its own IP address, communication with the host HT13 of another network LAN / WAN 3 is performed. It is executed according to the existing TCP / IP protocol connection standard through a router (RT31) and a router (RT33) via the Internet (300).

Meanwhile, when the mobile host HT11 of the home network LAN / WAN 1 moves to the external network LAN2, the IP datagram transmitted to its own IP address is received by the following operation.

If the host HT11 is connected to the position of any host HT12 in the network LAN2, the mobile host HT11 receives the broadcast information of the mobile agent AT22, so that its current position is the mobile IP service. Make sure that is in the provided external network (LAN2), and set the currently connected IP address as the care-of address.

Next, the mobile host HT11 registers its care of address with its home agent AT21 via the Internet 300.

At this time, if any host HT13 of another external network LAN / WAN3 transmits the datagram to the unique IP address of the host HT11 of the home network LAN / WAN1, the home network LAN / WAN1 The home agent AT21 receives the transmitted IP datagram and transfers it to the care-of address of the mobile host HT11, that is, the location of the mobile host HT12 of the external network LAN2 using the tunneling scheme. Therefore, the mobile host HT11 can receive all data arriving at its own IP address even when moving to the external network LAN2.

However, it is impossible to call a mobile host using the Internet from a fixed host connected to the Internet.

On the other hand, when transmitting data from the mobile host HT11 temporarily connected to the mobile host HT12 of the external network LAN / WAN2 to the host HT13, the existing TCP / IP service is not used. Communication may be performed based on the IP protocol.

However, the existing communication method using the TCP / IP protocol must add a function for applying the tunneling scheme and a mobile agent function to each network. In addition, a mobile agent system must be newly added to the network itself.

In addition, when the mobile host of the home network moves to an external network, the host of the home network receives broadcast information of the mobile agent of the external network after being temporarily connected to the external network, indicating that the current location of the mobile network is in the external network. Set the actual IP address you are currently accessing as your contract address. However, at this time, the mobile host accesses the external network and uses the care-of address, which can greatly reduce the security of the communication.

Another problem of the related art described above is that when a mobile host communicates using an existing IP address in a mobile Internet equipped with a plurality of network interworking devices, the mobile host does not directly select a network interlocking device. The operator of the Internet designates the network interlocking device connected to its area according to the option of the communication service selected by the subscriber's mobile host. Therefore, an ISP connection service for wireless data communication using the mobile Internet is inconvenient, and a service in which a wireless data communication service provider provides an ISP service to a user is provided, so that a user may be restricted from receiving professional services of an ISP. Can be.

The present invention has been made to solve the above-described problems of the prior art, the object of the present invention is to move the existing code division multiple access method without using separate network components or new communication functions as in the prior art A mobile host assigned an IP (Internet Protocol) address is identified by using a subscriber location processing unit (HLR) and an inter-working unit (IWU) provided in a telephone network and a personal mobile communication network. It is to provide a mobile Internet (Mobile Internet) using a mobile communication network that can communicate using an existing IP address even if the network is not fixed to the network and a communication method using the same.

Another object of the present invention is a mobile Internet using a mobile communication network and communication using the mobile communication network that can provide a mobile IP service without a call break even when a handoff occurs when the mobile terminal moves between adjacent cells. It is to provide a method.

Another object of the present invention is to designate a network interlocking device directly by a user of a mobile host in a mobile Internet provided with a structure that can easily expand a plurality of network interlocking devices by facilitating packet network access through the network interlocking device as described above. To provide a mobile Internet (Mobile Internet) that can receive a variety of mobile communication services.

According to a first aspect of the present invention for achieving the above object of the present invention, the mobile Internet using a mobile communication network includes a plurality of mobile hosts that provide mobile data service and wireless access function, and a wireless communication channel to the mobile host. And a plurality of mobile access points, each of which is connected to the plurality of access points, and exchanges wireless data packets of the mobile host when the mobile host performs wireless data communication. A mobile router which manages registration and wirelessly connects the mobile host and a wireless access point, and has a network ID as a subnetwork of the Internet connected between the mobile router and a fixed internet connected to the mobile internet, and has a mobile host ID in the network ID. Registering and managing in the mobile router, the mobile hose It consists of a plurality of mobile Internet unit formed of a plurality of Internet gateway router (Router GateWay) for assigning the ID.

According to the second aspect of the present invention for achieving the object of the present invention, the communication method using the mobile Internet communication between the host of the unit mobile Internet and the host of the fixed internet is required Determining whether the communication is a communication between the mobile hosts of the mobile Internet, and if it is determined that the currently required communication is the communication between the mobile host and the fixed host, all data transmitted from the mobile host or reached to the mobile host. Performing through a home gateway router to which the mobile host belongs; If it is determined that the currently required communication is communication between the mobile hosts, the calling mobile host selects a packet service option and performs a communication using a method of calling a subscriber number of the called mobile host.

According to the present invention, a mobile IP service can be made using an existing Internet communication protocol and an already installed application without adding a mobile agent system and a new protocol to an existing CDMA mobile phone network and a personal mobile communication network. In addition, even if a mobile terminal performs handoff while moving between adjacent cells, it is possible to receive a high quality service that is not disconnected.

1 is a block diagram showing a connection state of a conventional data communication network using the Internet,

2 is a configuration diagram of a wireless packet data protocol stack used for data communication between a mobile host and a fixed host in a fixed Internet network in a CDMA mobile communication network;

3 is a block diagram showing a connection state of a mobile Internet communication network according to the present invention,

FIG. 4 is a configuration diagram of a mobile IP network using a CDMA mobile telephone network and a personal mobile communication network for showing an embodiment of FIG.

5 is a block diagram of a wireless packet data protocol stack used in data communication between wireless terminals using the mobile Internet according to the present invention.

* Description of the symbols for the main parts of the drawings *

MHT11-13: Mobile Host MAP1-3: Wireless Access Point

MRT21: Go Luther301: Go Internet

400: Fixed Internet GWR1-2: Gateway Router

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

The wireless data communication service implemented using CDMA telephone network and personal mobile communication network includes IS-95, IS-99, IS-657, IS-658, IS-707, etc. Based on the wireless data service technical specification. These standards specify asynchronous line data and fax services and wireless packet data services, respectively. In addition, it defines the connection standard of the network interlocking device (IWU) for matching the wireless section data communication and the wired section data communication protocol.

Therefore, according to this provision, the wireless data terminal can send and receive asynchronous line data and fax service, and can be connected by originating the wireless packet data service.

However, in the case of the incoming call via the Internet, the call of the mobile terminal using the IP address is possible only after additional connection standards have been determined. To date, such a call cannot be executed by the connection rules described above. In addition, when the called and calling mobile terminals perform data communication, data communication standards between mobile terminals that do not pass through the network interlocking device are not yet defined.

That is, a method of connecting a wireless data terminal to transmit a wireless packet data to a fixed host using the fixed Internet will be described with reference to FIGS. 1 and 2 as follows.

In the structure of the IS-657 packet data communication protocol stack shown in FIG. 2, only a path capable of communicating with a host (not shown) of the fixed Internet through the mobile stations TE2 and MT2 and the network interworking device IWU is shown. It is set. As shown in the link protocol Point to Point Protocol (PPP), when the service option is set to the packet service mode through the operation of the wireless data terminal TE2, the wireless data terminal TE2 is connected to the base station and the mobile station MT2 through the mobile terminal MT2. It remains connected to the network interlocking device (IWU) through the mobile switching center (BS / MSC). Subsequently, when a wireless data terminal TE2 is temporarily assigned one Internet IP address in the subnetwork IP owned by the IWU, the IWU is assigned to the IP address of the fixed Internet. Pass IP datagrams. Subsequently, the TCP protocol, which is the upper layer of the packet data protocol, and the IP protocol, which is the network layer, are opened to enable communication with a wireless data terminal and a host in the fixed Internet.

However, as described above, when a host on the fixed Internet calls the wireless data terminal, the call signal is transmitted to the IWU through the base station and the mobile switching center, where the IP interworking device receives the IP address. The method for identifying the wireless data terminal (TE2) has not been presented until now.

Accordingly, the present invention provides a mobile communication network capable of calling a mobile terminal or a wireless data terminal using an Internet IP address in the mobile Internet, and also performing data communication between mobile terminals without passing through a network interworking device. It is to propose a mobile Internet and a communication method using the same.

A network providing a mobile IP service using the above mobile IP technology is defined as a mobile internet. The configuration and operation of the mobile Internet and the communication method with the host in the existing fixed Internet will be described with reference to FIGS. 3 and 4 as follows.

Referring to FIG. 3, one mobile Internet 301 using a conventional CDMA mobile communication network according to the present invention includes a plurality of mobile hosts (MHT11-13) that provide mobile data services and wireless access functions. A wireless access point of the mobile host MHT11-13 is connected to each of a plurality of mobile access points MAP1-3 and a plurality of access points MAP1-3 that provide a wireless communication channel to the host MHT11-13. Exchanging wireless data packets of the mobile host (MHT11-13) during data communication, managing the location and registration of the mobile host (MHT11-13), and executing a wireless connection between the mobile host (MHT11-13) and a wireless access point. Is connected between the mobile router MRT21 and the fixed router 400 connected to the mobile router MRT21 and the mobile Internet 301 to have a network ID as a sub-network of the Internet 400, and has a mobile host ID in the network ID. Move to Luther (MRT21), etc. It consists of a plurality of Internet Gateway Routers (GWR1-2) for locking and managing, and assigning them to Mobile Host IDs to implement data communication protocols using the Mobile Internet 301, and the Internet Gateway Routers (GWR1). A mobile Internet Protocol service is provided to a mobile host having an IP address of the Internet by using the host ID in the subnetwork ID of -2).

Here, the mobile hosts MHT11-13 shown in FIG. 3 may be selected from wireless data terminals such as a notebook computer, a personal digital assistant (PDA), a laptop, a palmtop, a portable computer, a small computer, and the like. Alternatively, any wireless data terminal may be configured to be combined with a mobile terminal, and the wireless access points MAP1-3 shown in FIG. 3 may be configured as a base station, as shown in FIG.

In addition, the mobile router MRT21 shown in FIG. 3 includes at least one subscriber information processing device HLR1 and mobile host MHT11- for managing the location and registration of the mobile host MHT11-13 as shown in FIG. A plurality of mobile switching centers MSC1-2 for exchanging wireless data packets of 13 and a plurality of base station controllers for controlling a wireless connection between the mobile host MHT11-13 and the wireless access point MAP1-3. BSC1).

Here, a plurality of network interworking devices IWU1,3 and mobile switching centers MSC1,3 may be connected to one subscriber information processing device HLR1, respectively. At this time, the Internet host ID with the IP address does not necessarily need to be connected to the wireless data terminals 11 and 15 connected to all the mobile terminals 12 and 16, respectively, and is assigned only within the limits accommodated by the network interlocking device IWU1. .

Meanwhile, the IDs of the plurality of mobile hosts MHT11 and 12 registered in the subscriber information processing device HLR1 are the subnetwork IDs of the network interworking device IWU1 connected to the network 301 managed by the subscriber information processing device HLR1. Only those in can be assigned.

The Internet gateway routers GWR1 and GWR2 shown in FIG. 3 may be configured by using the network interlocking devices IWU1 and IWU2 as shown in FIG. That is, the network interworking device IWU1 shown in FIG. 4 is an IP subnetwork connected to the Internet 300 and the mobile switching center MSC1, respectively, and has a plurality of mobile host identifiers. These host IDs are assigned to the wireless data terminals 11 and 15 of the respective mobile hosts MHT11 and 12 and registered in the subscriber information processing apparatus HLR1. In addition, subscriber numbers (hereinafter referred to as MIN numbers: Mobile Identification Numbers) of the mobile terminals 12 and 16 coupled with the wireless data terminals 11 and 15 are also registered in the subscriber information processing device HLR1. That is, the IP address assigned to the wireless data terminals 11 and 15 and the mobile host ID of the network interworking device IWU are registered in the subscriber information processing unit HLR, and the wireless data terminals 11 and 15 are assigned. In the IP address, which is the host ID, the MIN numbers of the combined mobile terminals 12 and 16 are registered.

Each mobile host MHT11-MHT13 of the mobile Internet 301 has an Internet host ID that is dependent on the subnetwork ID of the Internet gateway router GWR1-GWR2, and each mobile router to which the Internet gateway router GWR1-GWR2 is connected. It is registered at (MRT21). At this time, the mobile Internet 301 to which the mobile router MRT21 to which it is registered becomes the home network of the mobile hosts MHT11 to MHT13, and the mobile Internet 302 to which the mobile router MRT21 is not registered becomes an external network. In addition, the Internet gateway router GWR1 or GWR2 having the subnetwork ID including the mobile host ID is called the home gateway router of the mobile host.

Hereinafter, an exemplary embodiment of an IP communication service using a CDMA mobile communication network will be described with reference to FIGS. 3 and 4.

First, the home network of the mobile hosts MHT11, 12 and 13 is the mobile Internet 301, the home gateway router of the mobile host MHT11 is called GWR1, and the home gateway router of the mobile host MHT12 is called GWR2. Assume that the home network of the mobile host MHT14 is the mobile internet 302 and the home gateway router is GWR3.

Communication between mobile hosts on mobile internet and hosts on fixed internet

When any mobile host MHT11 of mobile internet 301 communicates with a host of fixed internet 400, the host (not shown) of fixed internet 400 is on LAN1, LAN2 or LAN3 or another LAN, or And all data arriving at the IP address that is the ID of the mobile host (MHT11) or in the home mobile network (301) or external mobile network (302) mobile host (MHT11) and data transmitted from the mobile host (MHT11) It is received and forwarded only through the home gateway router (GWR1).

That is, the mobile router MRT21 of the mobile Internet 301 requests communication from the source mobile host MHT11 to the host of the fixed Internet 400 in a format in which the service option does not specify the packet data service mode and the called party. (Calling the mobile host), the home mobile Internet 301 and the home gateway router GWR1 of the calling mobile host MHT11 are checked by the subscriber information processing device HLR1, and then the mobile host MHT11 is checked by the home gateway. Connect to the router (GWR1).

In addition, when the data transmitted from the fixed Internet 400 arrives at the mobile host MHT11, the fixed Internet 400 transmits all IP data to the home gateway router GWR1 of the mobile host MHT11. The home gateway router GWR1 requests call setup with the mobile host MHT11 using the unique IP address of the mobile host MHT11 to the home mobile router MRT21. Then, the home mobile router MRT21 checks the location of the mobile host MHT11 and directly calls the packet data service option if it is in the home network 301, and moves to the location of the mobile host MHT14 of the external network 302. In this case, the mobile router MRT21 of the home network 301 and the mobile router MRT22 of the external network 302 are connected to each other via a dedicated line connected to the external network 302. After calling the mobile host MHT11 with the packet service option to the access point MAP4, the mobile host MHT11 is connected to the home gateway router GWR1.

When a mobile host MHT11 of the mobile Internet 301 communicates with a host of the fixed Internet 400, a CDMA mobile telephone network and a personal mobile communication network are shown. A configuration diagram of the used mobile IP network will now be described with reference to FIG. 4.

First, when any host of the wired Internet 300 calls the IP of the mobile host MHT11 of the home network 301, this call signal is transmitted through the Internet 300 and the network interworking device IWU1 in turn. MSC1). At this time, the service option is already set to the packet service mode in the transmitted radio signal. Therefore, the mobile switching center MSC1 is called to call the mobile terminal 12 by using the ID of the called-side mobile host MHT11 in the wireless data terminal 12 instead of the call setting subscriber number (MIN number). Then, the subscriber information processing device HLR1 checks the position of the mobile terminal 12 from the subscriber number (MIN number) registered in the ID of the mobile host MHT11, and calls the mobile terminal 12 with the packet service option. The path of packet data connecting between the calling host and the called mobile host MHT11 of the fixed Internet 300 may be set.

On the other hand, when the mobile host MHT11 of the home network 301 is roaming to the location of the mobile host MHT14 of the external network 302, the following functions are provided to receive data services from the fixed Internet 300. Must be added to external network 302.

First, there must be a data path between the external network 302 and each mobile switching center MSC1, MSC2 of the home network 301.

Second, when data is received by the mobile host MHT11 when the packet data service option is requested, the Internet IP datagram arriving at the network interlocking device IWU1 of the home network 301 is transferred to the mobile switching center (the home network 301). MSC1) and then connected to the mobile host MHT11 roamed to the location of the mobile host MHT14 via the MSC2 of the external network 302, the base station controller BSC2, and the base station BTS2 in turn. Be sure to At this time, the mobile switching center MSC1 of the home network 301 transmits to the mobile switching center MSC2 of the external network 302 the subscriber number of the mobile terminal 12 confirmed by the subscriber information processing device HLR1 of the home network 301. MIN number) and service option is packet service.

In addition, even when the mobile host MHT11 roamed at the location of the mobile host MHT14 of the external network 302 attempts to access the fixed Internet 300, the call of the calling mobile host MHT11 is not connected to the external network 302. It is connected to the mobile switching center MSC1 of the home network 301 through the mobile switching center MSC2, and can be connected to the fixed Internet 300 through the network interlocking device IWU1.

That is, when the mobile host MHT11 requests the packet service option when the mobile host MHT11 moves to the external network 302 and is temporarily connected to the mobile host MHT14, the mobile switching center MSC2 is connected. Notifying that the subscriber number (MIN number) and the service option of the mobile host (MHT11) are in packet service mode without connecting the call route to the mobile switching center (MSC1) of the home network 301 of the mobile host (MHT11). do. At this time, the mobile switching center MSC1 of the home network 301 obtains the ID of the mobile host MHT11 from the subscriber number (MIN number) registered in the subscriber information processing apparatus (HLR) and uses the network of the mobile host MHT11 from this ID. The roaming mobile host MHT11 accesses the Internet 300 by checking the sub-network of the interworking device IWU1 and performing call setup.

In this manner, the mobile host MHT11 of the mobile Internet 301 uses the mobile host ID anywhere in the mobile communication network service area and the personal mobile communication network that provides the wireless data service. It is possible to execute a desired data communication with the mobile terminal, and even when the mobile terminal moves between adjacent cells, services such as continuous handoff and roaming can be provided without disconnection of a call.

Communication between called party and calling mobile host

The following describes a wireless communication method when both the called party and the calling party are mobile hosts.

The wireless packet data service between two mobile hosts is determined by the originating mobile host MHT11 of the packet service option and the destination mobile host MHT12 regardless of whether the destination mobile host is located in the home network 301 or the external network 302. This is done by calling the subscriber number (MIN number). That is, the mobile router MRT21 of the calling mobile host MHT11 checks whether the data of the called mobile host MHT12 is serviced and the current registration position, and calls the packet service option. In addition, mutual communication is possible only with the mobile IP address assigned by the mobile Internet 301 itself, not the mobile host ID in the Internet gateway router GWR1 subnetwork ID of the mobile Internet 301. Here, the mobile IP address cannot be used in Internet communication through the Internet gateway router (GWR) separately from the Internet gateway router (GWR) subnetwork address.

Hereinafter, FIG. 4 is a block diagram of a mobile IP network using a CDMA-type mobile telephone network and a personal mobile communication network in order to show a wireless communication method when both the called party and the calling party are mobile hosts. Referring to the following.

First, the mobile terminal 12 of the mobile host MHT11 of the home network 301 shown in FIG. 4 is operated to set the service option to the packet data service mode, and the destination mobile host MHT12 is selected. That is, when the originating mobile host MHT11 does not specify the MIN number of the called mobile host MHT12 when executing the packet data service, the calling mobile host MHT11 is connected to the home network interworking device IWU1.

On the other hand, when the MIN number of the called party's mobile host MHT12 is specified, it requests the mobile switching center MSC1 to request packet communication between the mobile hosts MHT11 and MHT12. At this time, the subscriber information processing device (HLR1) and the mobile switching center (MSC1) calls the called party's mobile host (MHT12) to the subscriber number (MIN number) and informs that it is a packet service option. Since both PPPs are set up and the upper protocol layer is opened, packet data communication between the mobile hosts MHT11 and MHT12 is possible. Accordingly, packet data communication between the mobile hosts MHT11 and MHT12 in the home network 301 is possible by the above-described method.

In addition, a case in which the mobile host MHT11 in the home network 301 calls the mobile host MHT11 when roaming to the external network 302 will be described.

The process from the mobile switching center MSC1 and the subscriber information processing device HLR1 is the same as the case of calling the roaming mobile host MHT13 from the network interlocking device IWU1. That is, the communication between the mobile hosts MHT11 and MHT12 is a path between two currently located mobile hosts MHT11 and MHT12 except for an operation of accessing the home subscriber information processing device HLR for positioning of the roamed mobile host MHT11. Irrespective of the home network interworking device IWU1, the mobile host MHT11 is set around the mobile switching center MSC2 of the external wireless network 302 being serviced.

On the other hand, if the MIN number of the called party's mobile host MHT12 is specified, it requests the mobile switching center MSC1 to request packet communication between the mobile hosts MHT 11 and MHT 12. At this time, the subscriber information processing device (HLR1) and the mobile switching center (MSC1) calls the called party's mobile host (MHT12) to the subscriber number (MIN number) and informs that it is a packet service option. Since both PPPs are set up and an upper layer protocol is opened, packet data communication between mobile hosts MHT 11 and MHT 12 is possible. Therefore, packet data communication between the mobile hosts MHT11 and MHT 12 in the home network 301 is possible by the above-described method.

In addition, a case in which the mobile host MHTll in the home network 301 calls the mobile host MHT 11 when roaming to the external network 302 will be described.

The procedure from the mobile switching center MSC1 and the subscriber information processing device HLR1 is the same as the case of calling the roaming mobile host MHT13 from the network interlocking device IWU1. That is, the communication between the mobile hosts MHT 11 and MHT 12 may be performed by the two mobile hosts MHT11 and MHT12 currently located, except for the operation of accessing the home subscriber information processing device HLR for positioning of the roamed mobile host MHT11. The inter-path is established centering on the mobile switching center MSC2 of the external wireless network 302, which is served by the mobile host MHTll, regardless of the home network interworking device IWU1.

As described above, each mobile terminal can be provided with its own unique Internet IP address to provide a seamless communication service between the mobile host in the service area and the fixed host in the Internet. In addition, data communication between mobile hosts uses a mobile IP address or subscriber number (MIN number) around a mobile switching center (MSC2) of an external network 302 in a wireless mobile data service area independently of a network interlocking device. You can communicate with each other using the data service option.

Network interlocking device designation service

Another feature of the present invention is that a user of a mobile host can directly designate a network interlocking device in a mobile Internet provided with a plurality of network interworking devices (IWU) to perform a desired communication service.

This network linkage device designation service will be described with reference to FIG. 4 as follows. In a mobile Internet equipped with a plurality of interlocking devices IWU1-3, a mobile switching center MSC1-3 can be distinguished in the mobile Internet for each interlocking device IWU1-3 and also by a user of the mobile host. When a mobile host (MHT11) requests a communication service by assigning a unique address that can be designated and called, a desired network interworking device can be designated.

At this time, if a network interlocking device (IWU) is designated to perform a communication service, the network interlocking device should be designated after the user's password and user name is input, and the communication service is provided only to the user who inputs the correct password and user name. It is desirable to operate the mobile Internet.

Referring to the effects of the present invention described above are as follows.

According to the present invention described above, a mobile Internet service can be utilized by utilizing the basic elements of a CDMA mobile telephone network and a personal mobile communication network and existing Internet communication protocols and applications without using a mobile agent system as a new communication network element. There is an advantage that can be provided.

In addition, the security of the communication network is improved than before, and there is an advantage that the commercial use is possible because there is an advantage that can implement a mobile Internet protocol service without the addition of a protocol for mobile communication.

In addition, in a system network provided with a plurality of network interlocking devices, a user of a mobile host may designate a network interlocking device to execute a desired communication service. Therefore, when various services are provided for the entire mobile internet, the user can directly designate one of a plurality of network interworking devices and request a communication service, thereby increasing the communication efficiency of the mobile internet.

Although the invention has been described above only one embodiment, it can be modified by those of ordinary skill in the art as can be seen from the appended claims and such modifications are within the scope of the invention. Will understand.

Claims (25)

A plurality of mobile hosts that provide mobile data services and wireless connectivity; A plurality of wireless access points for providing a wireless communication channel to the mobile host; Respectively connected to the plurality of access points, when the mobile host performs wireless data communication, exchanges wireless data packets of the mobile host, manages the location and registration of the mobile host, and wirelessly connects the mobile host with the wireless access point; A mobile router to connect Is connected between the mobile router and a fixed internet connected to the mobile internet, and has a network ID as a sub-network of the internet, and registers and manages a mobile host ID in the network router with the mobile router. Consists of a number of unit mobile Internet consisting of a plurality of Internet gateway routers for assignment, Implementing a data communication protocol using the mobile Internet, and providing a protocol service to a mobile host having an Internet IP address as a host ID in the subnetwork ID of the Internet gateway router. , 2. The method of claim 1, wherein when any fixed Internet host calls any mobile host with the Internet IP address, the gateway router instructs the mobile router to call the mobile host with the Internet IP address. Mobile Internet using a mobile communication network characterized in that. The mobile host of claim 1, wherein the mobile host is any one selected from a notebook, a personal digital assistant (PDA), a laptop, a palmtop, a portable computer, a small computer, or is combined with the mobile terminal. Mobile Internet using mobile communication network. The mobile Internet using a mobile communication network according to claim 1, wherein the wireless access point is configured using a base station. 2. The mobile router of claim 1, wherein the mobile router comprises at least one subscriber information processing device for managing the location and registration of the mobile host, a plurality of mobile switching centers for exchanging wireless data packets of the mobile host, and the mobile. A mobile Internet using a mobile communication network comprising a plurality of base station controllers for controlling a wireless connection between a host and a wireless access point. The mobile Internet using a mobile communication network according to claim 1, wherein the internet gateway router comprises at least one network interlocking device. 7. The mobile Internet using a mobile communication network according to claim 6, wherein the network interworking device has a plurality of mobile host identifiers. The mobile Internet according to claim 1, wherein the mobile host has an Internet host ID that is dependent on the subnetwork ID of the gateway router, and is registered in the mobile router to which the gateway router is connected. The mobile Internet using a mobile communication network according to claim 8, wherein the mobile host designates a mobile internet with the registered mobile router as a home network and a mobile internet with an unregistered mobile router as an external network. . 2. The method of claim 1, wherein when communicating between the mobile host and any host on the fixed Internet, when the mobile host is on a home network or is moved to an external network, it transmits data from the mobile host or uses an ID of the mobile host. The mobile Internet using a mobile communication network, characterized in that via the home gateway router when the data arrives. 11. The method of claim 10, wherein when the mobile host calls an arbitrary host of the fixed Internet from the mobile host when the mobile host is moved to an external network, the calling mobile host does not specify a packet service option and a called party. Requesting data communication with a fixed internet host, identifying a home network and a home gateway router of the mobile host, and connecting the mobile host and the corresponding gateway router to provide a communication path with the mobile host and the host of the fixed internet. Mobile Internet using a mobile communication network characterized in that. 11. The method of claim 10, wherein when communicating between the mobile host and any host on the fixed internet, data transmitted from a host on the fixed internet when the mobile host is on a home network or moved to an external network is transmitted to the mobile host. Upon arrival, the home gateway router establishes a call with the mobile host using the unique IP address of the mobile host as the home mobile router, and the home mobile router determines and calls the current location of the mobile host to Mobile Internet using a mobile communication network characterized in that the received data is received by the mobile host. The mobile terminal of claim 12, wherein the home mobile router makes a direct call if the mobile host is in a home network and calls a packet service option when the mobile host is in a home network. After connecting the mobile router of the home network and the mobile router of the external network through a line connected to the mobile network, the mobile host is called with a packet service option to a wireless access point of the external network, and then the mobile host and the home gateway router are connected. Mobile Internet using a mobile communication network, characterized in that. 2. The method of claim 1, wherein when both the called and calling parties are mobile hosts, the wireless packet data service between mobile hosts is determined by whether the calling mobile host has a packet service option regardless of whether the called mobile host is located in a home or external network. A mobile Internet using a mobile communication network, characterized in that by calling the subscriber number of the destination mobile host. The mobile packet data service of claim 14, wherein the wireless packet data service between the mobile hosts is performed by the mobile router after calling the packet service option after confirming the data service and the current registration location of the destination mobile host. Internet. 15. The mobile Internet of claim 14, wherein the wireless packet data service between the mobile hosts can communicate with each other only by using a mobile IP address assigned by the mobile Internet itself. In the mobile Internet comprising a plurality of MSCs and a plurality of network interworking devices IWU1-3 connected to the MSs, The mobile switching center assigns a unique address that can be distinguished in the mobile Internet and designated by the user of the mobile host for each network interworking device, so that when any mobile host requests communication service, A mobile internet using a mobile communication network, characterized in that the network interlock device is specified. 18. The mobile communication network according to claim 17, wherein the communication service is provided only to the user of the mobile host which inputs the user's password and / or user name when the communication device is designated and specified. Used mobile internet. In the mobile Internet consisting of a plurality of mobile Internet, a wireless access point, a mobile router, and a mobile Internet with a router gateway and a fixed Internet connected to the mobile internet, the mobile Internet is used to establish a data communication protocol. And providing a mobile internet protocol service to a mobile host having a host ID in the subnetwork ID of the internet gateway router. A plurality of mobile hosts providing a mobile data service and a wireless access function, a plurality of mobile access points providing a wireless communication channel to the mobile host, and a plurality of mobile access points, respectively, to connect the mobile hosts to wireless A mobile router for exchanging wireless data packets of the mobile host, managing the location and registration of the mobile host, and performing a wireless connection between the mobile host and a wireless access point; A plurality of Internet gateway routers connected to a fixed Internet connected to a mobile Internet, having a network ID as a sub-network of the Internet, registering and managing a mobile host ID in the network ID to the mobile router, and assigning the mobile host ID to the mobile host ID. Multiple mobile Internets configured as GateWay Routers A mobile internet consisting of, a) determining whether the communication required by the operation signal of the originating host is communication between a host of the unit mobile Internet and a host of the fixed Internet or a mobile host of the unit mobile Internet; b) if it is determined that the currently required communication is the communication between the mobile host and the fixed host, performing all data transmitted from or to the mobile host through a home gateway router to which the mobile host belongs; ; And, C) if it is determined that the currently required communication is communication between the mobile hosts, the calling mobile host selects a packet service option and performs a communication using a method of calling a subscriber number of the called mobile host. Communication method using the mobile Internet, characterized in that. 21. The method according to claim 20, wherein in step a), if the operation of the originating host selects a packet service option and the destination host is not specified, the currently requested communication is performed between the host of the mobile Internet and the host of the fixed Internet. Communication method using the mobile Internet, characterized in that determined by the communication. 21. The communication method according to claim 20, wherein when the originating mobile host is moved to the external network, when the mobile host transmits data to any host of the fixed Internet, Invoking the called host: Determining whether the called host is a fixed host or a mobile host: If it is determined that the called host is a fixed host, checking the home network of the mobile host; Identifying a home mobile internet of the mobile host and connecting a call to the home mobile router of the mobile host; And connecting the fixed Internet through the home gateway router. 21. The method of claim 20, wherein when the mobile host is moved to the external network, the communication when the host of the fixed internet transmits data to the mobile host of the mobile internet, Receiving all data at the gateway router of the mobile host; Requesting the mobile router to establish a call with the mobile host using the unique address of the mobile host and confirming the location of the mobile host; Calling the mobile host; And connecting the mobile host and a home gateway router. 24. The method of claim 23, wherein if the mobile host is in a home network, the mobile packet service is connected by directly invoking a packet service option and then connecting the mobile host with a home gateway router. Communication method using mobile internet. 24. The method of claim 23, wherein if the mobile host is in an external network, the mobile host connects a mobile router to a mobile router of a home network and connects the mobile router to a mobile access point of the external network through a line connected to the external network. And connecting a mobile packet service by connecting the mobile host and a home gateway router after calling with a service option.