JP2003008625A - Mobile ip agent equipment, mobile terminals, mobil communication system and mobile terminal registration system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it unnecessary to transmit or receive a registration request message and a registration answer message in order to make registration process for mobile IP on a radio circuit between mobile terminals and a network. SOLUTION: A mobile terminal 106 transmits a position registration message including the home address information to a RNC(Radio Network Control Equipment) 104 when it makes position registration process for mobile communication. A mobile IP FA control measure 103 in a mobile IP agent equipment 101 of the RNC 104 notifies a registration request message of the mobile IP to a mobile IP FA measure 102 based on a position registration message including the home address information. The mobile IP FA measure 102 transmits the registration request message to the home agent and executes the registration process.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to Mobile I
Mobi provided in a radio network controller or a base station in a mobile communication system to which P is applied
The present invention relates to a le IP agent device, a mobile terminal that wirelessly communicates with a base station, a mobile communication system configured by them, and a mobile terminal registration method.

[0002]

2. Description of the Related Art Conventionally, as a method of managing mobility on the Internet, IETF, 1996, 10
The protocol "M" standardized as RFC2002 in March
Mobile IP is a home address of a mobile terminal (a permanent IP address assigned to the mobile terminal) from other nodes, regardless of where the mobile terminal moves and is connected to the Internet. This is a technique in which when a packet is transmitted to a destination, the packet is transmitted to the destination of the mobile terminal.

Mobile IP has two forms for connecting to an external network (destination subnetwork) connected to the Internet.
One is a form in which a foreign agent (hereinafter referred to as "FA") router exists in the foreign network of the moving destination, and the router serves as a packet relay point, and the FA care-of address is used as the care-of address. The other is that the mobile terminal itself is the FA
In this embodiment, the coexistence care-of address is used as the care-of address for the packet processing.

The care-of address is a temporary address assigned to the mobile terminal. By using this care-of address, the node transmitting the packet to the mobile terminal can transmit the packet to the home address of the mobile terminal, and then the home agent (Home Agent: hereinafter referred to as “HA”) and FA. The packet can be transferred to the mobile terminal.

Here, for Mobile IP,
A method of using the FA care-of address will be described. First, the configuration of Mobile IP will be described with reference to FIG.

In Mobile IP, a mobile terminal (Mobile Node: hereinafter referred to as "M") having a mobile node function is used.
When the home network 505 to which the “N” 501 is originally connected and the external network 506 to which the MN 501 is moved are connected via the Internet network 507, the other party connected to the Internet network 507. Terminal (Corresponding Nod
e: hereinafter, referred to as “CN”) 504 and MN 501 are defined to communicate with each other.

The home network 505 has an HA 50.
2 is provided, and the HA 502 is the home network 50.
5 can communicate with the MN 501 in the wireless communication.
Similarly, the FA 503 is provided in the external network 506, and the FA 503 is an M in the external network 506.
It is possible to wirelessly communicate with the N501.

The HA 502 manages the home address and care-of address of the MN 501 in association with each other, and fetches the packet 508 addressed to the MN 501 from the Internet network 507.
Is encapsulated and the encapsulated packet 509 is transferred to the FA 503 in the destination external network 506 via the Internet network 507. FA
The 503 decapsulates the packet 509 received from the HA 502 and wirelessly transfers it to the MN 501.

Next, the Mobil configured as described above
The operation of eIP will be described. HA5
The IP address of 02 is "200.0.10.1",
The IP address of MN501 is "200.0.10.2"
And the IP address of FA 503 is “200.0.2.
0.1 ".

First, the registration process of notifying the HA 502 of the care-of address, which is the current position of the MN 501, will be described. Here, it is assumed that the method of using the FA care-of address as the care-of address is used.

The MN 501 has the IP address "200.0.2" of the FA 503 in the foreign network 506 of the moving destination.
0.1 ”was acquired as the FA care-of address, and FA503
A registration request message including a home address and a care-of address is wirelessly transmitted to. FA503 is MN501
The registration request message wirelessly received from the HA 50 of the home network 505 via the Internet 507.
Relay to 2.

HA 502 changes from FA 503 to MN 501.
When the registration request message is received, the home address "200.0.10.2" of the MN 501 and the FA care-of address "200.0.20.1" are managed in association with each other. H
The A502 transmits a registration response message to the FA 503 via the Internet network 507 as a response that the registration processing of the MN 501 has been normally performed.

Upon receiving the registration response message, the FA 503 adds the MN to the visit list of the mobile terminal it manages.
501 is added, and the received registration response message is sent to MN5.
Wirelessly transmitted to 01. MN501 is FA503
By wirelessly receiving the registration response message from
Recognize that the registration process was successful.

Next, the operation of transferring a packet from the CN 504 to the MN 501 will be described. In FIG. 5, the CN 504 transmits a packet 508 to the home address “200.0.10.2” of the MN 501. At this time, the CN 504 does not know that the MN 501 has moved from the home network 505 to the foreign network 506. The packet 508 transmitted from the CN 504 is the HA 502 in the home network 505.
To receive.

The HA 502 has (1) → (2) shown in FIG.
The packet 508 is encapsulated according to the procedure described above, and the IP address “2” of the FA 503, which is the FA care-of address of the MN 501, is used.
Packet 50 encapsulated in 00.0.20.1 "
9 is transferred to FA 503.

Upon receiving the encapsulated packet 509, the FA 503 decapsulates it according to the procedure (2) → (1) shown in FIG. 6, and the IP address “20” of the MN 501.
Relay to 0.0.10.2 ".
The packet from A503 is wirelessly received.

Next, encapsulation and decapsulation of IP packets will be described with reference to FIG. Encapsulation means adding the header including the care-of address and the address information of the home agent to the IP packet of FIG. 6 (1) to form the IP packet of FIG. 6 (2). Decapsulation, on the contrary, is to extract the content packet, FIG. 6A, from the encapsulated packet in FIG. 6B. Next, a packet transfer method from the MN 501 to the CN 504 will be described. The MN 501 sends the source IP address “200.
0.10.2 "and the destination IP address is CN504
The packet having the IP address of is transmitted. Therefore, the routing of the packet from the MN 501 to the CN 504 is similar to the routing in the normal Internet network that does not pass through the HA 502.

As described above, by applying the mobility management using Mobile IP, the MN 501
Can communicate with the CN 504 regardless of where it is connected to the Internet.

Next, the registration processing method of the MN 501 will be described. FIG. 7 is a diagram for explaining a conventional Mobile IP registration processing method.

In procedure 701 of FIG. 7, MN 501 is located in home network 505 and HA 502
Connected to. HA502 is Agent Adve
rtimement message 702, 703, 704
Are periodically broadcast in the home network 505. MN501 is the Agent Advert
By receiving the configuration message 702, 703, 704, the currently connected HA 502
Can be recognized, and it can be grasped that it is located in the home network 505.

In procedure 705 of FIG. 7, MN 501 moves from home network 505 to foreign network 506. FA 503 in the external network 506
Periodically broadcasts an Agent Advertisement message 706 in the external network 506.

In step 707 of FIG. 7, the MN 501 sets F
Ag periodically broadcast from A503
ent Advertisement message 706
By receiving the information, the current position is grasped and it is detected that the home network 505 has moved to the external network 506.

Upon detecting the movement, the MN 501
Home Address Information and AgentAdvertise
The registration request message 708 including the care-of address information included in the ment 706 is transmitted to the FA 503. FA 503 that received registration request message 708
Transfers a registration request message 709 to HA 502.

In step 710 of FIG. 7, HA 502, which has received registration request message 709, stores the home address of MN 501 and the address of FA 503 which is the current care-of address, and performs registration processing. The HA 502 sends a registration response message 711 to the FA 503 to notify the FA 503 that the registration process has been completed normally.

In step 712 of FIG. 7, the FA 503 that has received the registration response message 711 recognizes that the registration processing in the HA 502 has been completed normally, and the mobile terminal 50
The home address of 1 and the care-of address are added to the visit list, and the registration processing in the FA 503 is performed.

The FA 503 sends a registration response message 713 to the MN 501 in order to notify the MN 501 that the registration process has been completed normally. The MN 501 receives the registration response message 713, completes the registration processing in the MN 501, and enters the packet communication enabled state (FIG. 7).
714).

By the way, in the Mobile IP standardized as RFC2002 as described above, the Agent is
The registration process of the mobile terminal is performed using the Advertisement message.
Since the element message is periodically broadcast on the wireless line, there is a problem that the band of the wireless channel cannot be effectively used.

As a method for solving this problem, there is known a position registration method described in, for example, Japanese Patent Application Laid-Open No. 11-75245 (position registration method of mobile terminal in mobile communication system). The location registration method described in the above publication is
Rather than detecting the movement of the mobile terminal using Agent Advertisement, the mobile terminal provides information indicating that the location registration process used in the mobile communication system has occurred and information indicating that the handover process has occurred. Is obtained and the registration process by Mobile IP is performed.

Hereinafter, with reference to FIG. 8 to FIG.
The outline of the location registration method described in Japanese Patent No. 75245 will be described.

First, referring to FIG. 8, Japanese Patent Laid-Open No. 11-75.
The configuration of the mobile communication system described in Japanese Patent No. 245 will be described. In FIG. 8, a mobile communication system described in Japanese Patent Laid-Open No. 11-75245 is a home network 821 and external networks 822 and 823.
And an Internet network 824 that connects them.

The home network 821 is a mobile network.
A wireless network control device (hereinafter referred to as “RNC”) 802 equipped with an e-IP HA function, and wireless base station devices (referred to as “BTS”) 811 and 812 that are under the control of the RNC 802 and perform wireless communication with mobile terminals. It is equipped with.

The external network 822 is a mobile
RNC803 equipped with IP FA function and RNC8
BTS8 under the control of 03 for wireless communication with mobile terminals
13, 814. The external network 823 also has the same configuration as the external network 822.

Further, as shown in FIG. 9, Japanese Patent Laid-Open No. 11-7
An RNC (Radio Network Controller) 901 described in Japanese Patent No. 5245 comprises a Mobile IP foreign agent means 902. In other words, it has the FA function of Mobile IP.

Next, referring to FIG. 10, Japanese Patent Laid-Open No. 11-7
The location registration method of the mobile terminal described in Japanese Patent No. 5245 will be described. Here, a location registration method in the case of using information indicating that location registration processing has occurred will be described.

In FIG. 10, in procedure 1001 of FIG. 10, the mobile terminal 801 moves from the external network 822 managed by the RNC (FA) 803 to the BTS 815 in the external network 823 managed by the RNC (FA) 804. The RNC (FA) 804 broadcasts the broadcast information 1002 including the IP address information of the FA on the control channel via the BTS 815.

In step 1003 of FIG. 10, the mobile terminal 80
1 receives the broadcast information 1002 from the BTS 815,
Recognize that you have moved between networks. RNC (F
A) Upon detecting that the mobile terminal 801 has moved to the external network 823 managed by the 804, the mobile terminal 801 determines that the BTS 815
Location registration processing 1 to RNC (FA) 804 via
004 is performed.

The mobile terminal 801 uses this location registration process 10
With 04 as a trigger, the IP address of the FA included in the broadcast information 1002 from the RNC (FA) 804 is investigated. As a result, when the mobile terminal 801 recognizes that it is different from the FA to which it was connected before moving, Mobile I
The P registration request message 1005 is transmitted to the RNC (FA) 804 via the BTS 815.

The RNC (FA) 804 is a mobile terminal 801.
The registration request message 1005 is received, and the registration request message 1006 is transferred to the HA 802. HA80
2 is a registration request message 100 from the mobile terminal 801
Receive 6

In step 1007 of FIG. 10, HA 802
Is the mobile terminal 8 included in the registration request message 1006.
The home address of 01 and the care-of address are managed in the HA 802 in association with each other. The HA 802 sends a registration response message 1008 to the RNC (FA) 80 in order to notify the mobile terminal 801 that the registration process has been completed normally.
Send to 4.

In step 1009 of FIG. 10, RNC (F
A) 804 is a registration response message 1 from HA 802
Upon receiving 008, the HA 802 recognizes that the registration processing has been completed normally, and performs FA registration processing for adding the mobile terminal 801 to the FA visit list.

The RNC (FA) 802 sends a registration response message 1010 to the mobile terminal 801 in order to notify the mobile terminal 801 that the registration processing in the FA has been completed normally.
Send to 1.

In step 1011 of FIG. 10, the mobile terminal 80
1 is a registration response message 1 from the RNC (FA) 804.
By receiving 010, it is recognized that the registration process has been normally completed, and the communication becomes possible.

As described above, in the position registration method described in Japanese Patent Laid-Open No. 11-75245, the Agent Advertiser is used.
Mob even without using the Tissuement message
The ile IP registration process can be performed.

[0044]

However, in the location registration method disclosed in Japanese Patent Laid-Open No. 11-75245, in addition to the location registration processing in mobile communication, Mobile I
In order to perform the registration process in P, it is necessary to send and receive the Mobile IP registration request message and the registration response message on the wireless line between the mobile terminal and the network, and there is still a problem that the wireless band cannot be effectively used.

The present invention has been made in view of the above points, and it is necessary to send and receive a registration request message and a registration response message on a wireless line between a mobile terminal and a network in order to perform registration processing in Mobile IP. It is an object of the present invention to provide a Mobile IP agent device, a mobile terminal, a mobile communication system, and a mobile terminal registration method that can eliminate the above.

[0046]

Mobile of the present invention
The IP agent device is provided in a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, or
The mobile station is provided in a base station under the control of the wireless network control device and wirelessly communicates with the mobile terminal.
The foreign agent means that functions as a foreign agent of P and the foreign agent means existing in the home network based on the location registration message in the mobile communication including the home address information of the mobile terminal sent from the mobile terminal. Mobile IP foreign agent control means for executing Mobile IP registration processing with the home agent that performs the operation.

According to this structure, when the Mobile IP foreign agent control means receives the location registration message in the mobile communication including the home address information of the mobile terminal from the mobile terminal, the mobile IP foreign agent control means exists in the home network in the foreign agent means. Mobile IP registration processing is executed with the home agent. That is, in the base station or the wireless network control device, by including the Mobile IP agent device of the present invention, without transmitting / receiving the registration request message and the registration response message between the mobile terminal and the base station or the wireless network control device, Mobile
Since the IP registration process can be performed, the wireless band can be effectively used.

The Mobile IP agent device of the present invention is provided in a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, or a mobile terminal under the wireless network control device. And a foreign agent means provided as a foreign agent of Mobile IP provided in a base station that wirelessly communicates with the mobile terminal, and whether or not the location registration message from the mobile terminal is the first location registration message in the mobile communication network, When the location registration message is the first location registration message in the mobile communication network, the mobile terminal identifier and home address of the mobile terminal are registered in the mobile terminal management device provided in the mobile communication network, and the location registration message is registered. If not the first location registration message in over di is within a mobile communication network,
The home address of the mobile terminal is acquired from the mobile terminal management device based on the mobile terminal identifier included in the location registration message, and M is transmitted to the foreign agent means between the home agent existing in the home network.
Mobile that executes the registration process of mobile IP
And an IP foreign agent control means.

According to this structure, when the Mobile IP foreign agent control means receives a location registration message in mobile communication including the home address information of the mobile terminal from the mobile terminal, the received location registration message moves. If it is the first location registration message in the communication network, and as a result of the determination, if it is the first location registration message, the mobile terminal management device provided in the mobile communication network indicates to the mobile terminal identifier of the mobile terminal. When the first location registration message is not received, the home address of the mobile terminal is acquired from the mobile terminal management device based on the mobile terminal identifier included in the location registration message, and the home agent is registered in the foreign agent means. Ho in the network Mobile between the agent
The IP registration process is executed. That is, in the base station or the wireless network control device, the Mobile of the present invention is used.
By providing the IP agent device, the Mobile IP registration process can be performed without transmitting / receiving the registration request message and the registration response message between the mobile terminal and the base station or the wireless network control device. In addition to effective use, the overhead for the home address area can be reduced, so that the registration process can be performed efficiently.

The mobile terminal of the present invention is Mobile IP.
A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which
A location that is equipped with the function of a mobile node of le IP and transmits a location registration message including information of a home address as a mobile node when performing location registration processing to the radio network controller via the base station. A configuration including a registration message transmitting means is adopted.

According to this configuration, the mobile terminal can transmit the location registration message including the information of the home address as the mobile node when performing the location registration processing, so that the mobile IP registration processing is prompted. You can

The mobile terminal of the present invention is Mobile IP.
A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which
The first location registration message in the mobile communication network is the location registration message that is equipped with the function of the mobile node of le IP and that receives the notification information sent from the radio network controller via the base station and tries to transmit it. If the location registration message to be transmitted is the first location registration message in the mobile communication network, a location registration message including information on the home address of the mobile node is transmitted,
If the location registration message to be transmitted is not the first location registration message in the mobile communication network, a location registration message transmitting means for transmitting a location registration message that does not include information on the home address of the mobile node is provided. take.

According to this structure, the mobile terminal receives the notification information sent from the wireless network control device via the base station at the destination and sends the position registration message to be transmitted first in the mobile communication network. It is determined whether the location registration message is
If it is the first location registration message, a location registration message containing the home address information of the mobile node is transmitted, while if it is not the first location registration message, the location registration message containing no home address information of the mobile node is sent. You can send a message, so M
Since the registration process of the mobile IP can be promoted and the overhead for the home address area can be reduced, the efficiency of the registration process can be improved.

The mobile communication system of the present invention comprises a radio network control device for managing the mobile communication network, a base station under the control of the radio network control device, and a mobile terminal for performing radio communication with the base station. , Mob
A mobile communication system to which ile IP is applied,
The mobile terminal is equipped with a function of a mobile node of Mobile IP, and performs location registration including home address information as a mobile node when performing location registration processing with respect to the radio network controller via the base station. Location registration message transmitting means for transmitting a message, wherein the wireless network control device or the base station,
Mobile IP between the foreign agent means functioning as the foreign agent of Mobile IP and the home agent existing in the home network in the foreign agent means based on the location registration message sent from the mobile terminal.
The Mobile IP foreign agent control means for executing the registration processing of the Mobile IP foreign agent control means is provided.

According to this structure, the mobile terminal transmits the location registration message including the information of the home address as the mobile node when performing the location registration processing at the destination.
Then, in the base station or the radio network controller,
The MobileIP agent device according to the present invention executes the MobileIP registration process with the home agent existing in the home network based on the location registration message sent from the mobile terminal. Therefore, the Mobile IP registration process can be performed without transmitting / receiving the registration request message and the registration response message between the mobile terminal and the base station or the wireless network control device, so that the effective use of the wireless band can be achieved. Become.

The mobile communication system according to the present invention comprises a mobile terminal management device for managing a mobile terminal identifier and a home address of a mobile terminal visiting the mobile communication network, and Mobile IP foreign agent control in the Mobile IP agent device. Means determine whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, If the mobile terminal identifier and home address of the mobile terminal are registered in the terminal management device and the location registration message is not the first location registration message in the mobile communication network, the mobile terminal is moved based on the mobile terminal identifier included in the location registration message. Obtained from end management apparatus the home address of the mobile terminal employs a configuration to execute a Mobile IP registration process with the home agent in the home network to the foreign agent unit.

According to this structure, in the base station or the wireless network control device, the Mobile IP agent device of the present invention receives the location registration message in the mobile communication including the home address information of the mobile terminal from the mobile terminal. Then, it is determined whether or not the received location registration message is the first location registration message in the mobile communication network. If the result of the determination is that the location registration message is the first location registration message, the mobile station provided in the mobile communication network is determined. While registering the mobile terminal identifier and the home address of the mobile terminal in the terminal management device, if it is not the first location registration message, the home of the mobile terminal from the mobile terminal management device based on the mobile terminal identifier included in the location registration message. Get an address and exist on your home network With a home agent
Execute the registration process of the bill IP. Therefore, the MobileIP registration process can be performed without transmitting / receiving the registration request message and the registration response message between the mobile terminal and the base station or the wireless network control device, which enables effective use of the wireless band. hand,
Since the overhead for the home address area can be reduced, the registration process can be performed efficiently.

The mobile communication system of the present invention comprises a radio network control device for managing a radio network, a base station under the control of the radio network control device, and a mobile terminal for performing radio communication with the base station. Mobil
In a mobile communication system to which eIP is applied, the mobile terminal is equipped with a function of a mobile node of Mobile IP, and receives the notification information sent from the radio network controller via the base station. Determine whether the location registration message to be transmitted is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the home address as the mobile node The location registration message including the information of the location registration message is transmitted, and if the location registration message is not the first location registration message in the mobile communication network, the location registration message that does not include the home address information of the mobile node is transmitted. Means for providing the wireless network The work control device or the base station includes a foreign agent unit functioning as a foreign agent of Mobile IP, and a home agent existing in a home network in the foreign agent unit based on the location registration message sent from the mobile terminal. Mobile between
Mobile I having Mobile IP foreign agent control means for executing IP registration processing
A configuration including a P-agent device is adopted.

According to this structure, the mobile terminal receives the notification information sent from the radio network controller via the base station at the destination and sends the position registration message to be transmitted first in the mobile communication network. It is determined whether the location registration message is
If it is the first location registration message, a location registration message containing the home address information of the mobile node is transmitted, while if it is not the first location registration message, the location registration message containing no home address information of the mobile node is sent. Send a message. Then, in the base station or the radio network controller, the Mob according to the present invention is used.
Based on the location registration message sent from the mobile terminal, the ile IP agent device is mobile with the home agent existing in the home network.
IP registration processing is executed. Therefore, the Mobile IP registration process can be performed without transmitting / receiving the registration request message and the registration response message between the mobile terminal and the base station or the radio network controller, so that the effective use of the radio band can be achieved. In addition, since the overhead for the home address area can be reduced, the efficiency of the registration process can be improved.

The mobile communication system of the present invention comprises a mobile terminal management device for managing the mobile terminal identifier and the home address of the mobile terminal, and the Mobile IP foreign agent control means in the Mobile IP agent device operates from the mobile terminal. Of the location registration message is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the mobile terminal management device When the mobile terminal identifier and the home address are registered and the location registration message is not the first location registration message in the mobile communication network, the mobile terminal management apparatus determines the location of the mobile terminal based on the mobile terminal identifier included in the location registration message. E Get the beam address, a configuration for executing the Mobile IP registration process with the home agent in the home network to the foreign agent unit.

According to this configuration, in the base station or the radio network controller, the Mobile I according to the present invention is used.
The P agent device uses the mobile terminal management device that manages the mobile terminal identifier and the home address of the mobile terminal provided in the network to perform the same process as the mobile station again, and executes the Mobile IP registration process. Therefore, in addition to the effective use of the wireless band, the efficiency of the registration process can be further improved.

The mobile terminal registration method of the present invention is based on Mobil.
A radio network control device that manages a mobile communication network in a mobile communication system to which eIP is applied,
Alternatively, a base station that is under the control of the wireless network control device and wirelessly communicates with a mobile terminal is equipped with a Mob.
With the foreign agent function of ile IP,
Mobile IP registration processing is executed with a home agent existing in a home network based on a location registration message in mobile communication including home address information of the mobile terminal sent from the mobile terminal. did.

According to this method, the Mob is not transmitted and received between the mobile terminal and the base station or the radio network controller without sending and receiving the registration request message and the registration response message.
Since the ile IP registration process can be performed, the wireless band can be effectively used.

The mobile terminal registration method of the present invention is based on Mobil.
A radio network control device that manages a mobile communication network in a mobile communication system to which eIP is applied,
Alternatively, a base station that is under the control of the wireless network control device and wirelessly communicates with a mobile terminal is equipped with a Mob.
With the foreign agent function of ile IP,
It is determined whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the location registration message is stored in the mobile communication network. The mobile terminal identifier and home address of the mobile terminal are registered in the provided mobile terminal management device, and when the location registration message is not the first location registration message in the mobile communication network, the mobile terminal identifier included in the location registration message. Based on the above, the home address of the mobile terminal is obtained from the mobile terminal management apparatus, and MobileIP registration processing is executed with the home agent existing in the home network.

According to this method, the mobile terminal and the base station or the radio network controller can send and receive the Mob without sending and receiving the registration request message and the registration response message.
Since the ile IP registration process can be performed, the wireless band can be effectively used. Further, since the location registration message from the mobile terminal is determined and selected whether or not it is the first location registration message, the overhead for the home address area can be reduced and the efficiency of the registration process can be improved.

The mobile terminal registration method of the present invention is based on Mobil.
A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which e IP is applied is
Equipped with a mobile node function of ile IP, when performing location registration processing to the radio network controller via the base station, a location registration message including information of a home address as a mobile node is transmitted. did.

According to this method, the mobile terminal is
A location registration message can be sent that prompts the le IP registration process.

The mobile terminal registration method of the present invention is based on Mobil.
A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which e IP is applied is
A location registration message, which is equipped with a mobile node function of ile IP and is about to be transmitted by receiving notification information sent from the radio network controller via the base station, is the first location registration message in the mobile communication network. If the location registration message to be transmitted is determined to be the first location registration message in the mobile communication network, the location registration message including the home address information of the mobile node is transmitted,
When the location registration message to be transmitted is not the first location registration message in the mobile communication network, the location registration message that does not include the home address information of the mobile node is transmitted.

According to this method, the mobile terminal determines whether or not the location registration message to be transmitted is the first location registration message, and the contents included in the location registration message are different. As a result, the efficiency of the registration process can be improved.

The mobile terminal registration method of the present invention comprises a radio network control device for managing a mobile communication network, a base station under the control of the radio network control device, and a mobile terminal for performing radio communication with the base station. And Mob
In a mobile communication system to which ile IP is applied,
The mobile terminal is equipped with a Mobile IP mobile node function, and performs a location registration message including information of a home address as a mobile node when performing location registration processing to the radio network controller via the base station. And the radio network controller or the base station is equipped with a Mobile IP foreign agent function, and communicates with a home agent existing in a home network based on the location registration message sent from the mobile terminal. Now, Mobile IP registration processing is executed.

According to this method, the Mob is not transmitted and received between the mobile terminal and the base station or the radio network controller without sending and receiving the registration request message and the registration response message.
Since the ile IP registration process can be performed, the wireless band can be effectively used.

The mobile terminal registration method of the present invention comprises a mobile terminal management device for managing a mobile terminal identifier and a home address of a mobile terminal that has visited the mobile communication network, wherein the wireless network control device or the base station is ,
The mobile terminal management apparatus determines whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network. If the location registration message is not the first location registration message in the mobile communication network, the mobile terminal identifier and home address of the mobile terminal are registered in the mobile terminal management device based on the mobile terminal identifier included in the location registration message. The home address of the mobile terminal is obtained, and Mobile IP registration processing is executed with the home agent existing in the home network.

According to this method, the mobile terminal and the base station or the radio network controller can send and receive the Mob without sending and receiving the registration request message and the registration response message.
Since the ile IP registration process can be performed, the wireless band can be effectively used.

The mobile terminal registration method of the present invention comprises a wireless network control device for managing a wireless network, a base station under the control of the wireless network control device, and a mobile terminal for performing wireless communication with the base station. , Mobil
In a mobile communication system to which eIP is applied, the mobile terminal is equipped with a mobile node function of Mobile IP, and tries to receive and transmit notification information transmitted from the radio network controller via the base station. Determines whether the location registration message is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the home address information of the mobile node is set. If the location registration message containing the home address of the mobile node is not included in the mobile communication network, the location registration message including the home address information of the mobile node is transmitted, and the wireless network control device or The base station is a Mob Equipped with foreign agent functionality leIP, Mobile IP between the home agents in the home network based on the location registration message sent from the mobile terminal
The registration process of is executed.

According to this method, the Mob is not transmitted and received between the mobile terminal and the base station or the radio network controller without sending and receiving the registration request message and the registration response message.
Since the ile IP registration process can be performed, the effective use of the wireless band can be achieved, and the overhead for the home address area can be reduced, so that the efficiency of the registration process can be improved.

The mobile terminal registration method of the present invention comprises a mobile terminal management device for managing a mobile terminal identifier and a home address of the mobile terminal, wherein the radio network control device or the base station is located from the mobile terminal. It is determined whether the registration message is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the mobile terminal management device causes the mobile terminal of the mobile terminal. The identifier and the home address are registered, and if the location registration message is not the first location registration message in the mobile communication network, the home address of the mobile terminal from the mobile terminal management device based on the mobile terminal identifier included in the location registration message. Get and reside in home network Mobi between the over-time agent
The le IP registration process is executed.

According to this method, the Mob is not transmitted and received between the mobile terminal and the base station or the radio network controller without sending and receiving the registration request message and the registration response message.
Since the ile IP registration process can be performed, the effective use of the wireless band can be achieved, and the overhead for the home address area can be reduced, so that the efficiency of the registration process can be improved.

[0078]

BEST MODE FOR CARRYING OUT THE INVENTION The gist of the present invention is Mobile.
A wireless network control device or a base station equipped with an IP FA function uses a location registration of a mobile terminal to send a registration request message and a registration response message between the mobile terminal and the network to perform Mobile IP registration processing. That is, there is no need to send and receive over the wireless line.

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

FIG. 1 shows a Mo according to an embodiment of the present invention.
It is a block diagram which shows the structure of a bile IP agent apparatus. In FIG. 1, the RNC 104 is a mobile.
It is configured to include the eIP agent device 101. Mobile IP agent device 101 is
The mobile IP foreign agent (FA) means 102 and the mobile IP FA control means 103 are provided.

When the Mobile IP foreign agent (FA) means 102 receives the registration request message from the Mobile IP FA control means 103, it sends the registration request message to an HA (not shown). When a registration response message is received from the HA, Mobile
The registration response message is delivered to the e IP FA control means 103.

Mobile IP FA control means 103
Is a VLR (Visitor Locati) not shown.
On-register), the home address of the mobile terminal is registered / confirmed and the home address notification / response of the mobile terminal is received from the VLR.

Also, Mobile IP FA control means 1
03 transmits notification information in mobile communication to the mobile terminal 106 via the BTS 105, and receives a location registration message in mobile communication from the mobile terminal 106 via the BTS 105.

The mobile terminal 106 has a function as a mobile node of Mobile IP and is assigned a home address.

Next, the configuration of the mobile communication system according to the embodiment of the present invention will be described with reference to the block diagram of FIG. As shown in FIG. 2, the mobile communication system according to the embodiment of the present invention is a home network 221 of a mobile terminal 201, a mobile communication network 225, and a public network connecting the home network 221 and the mobile communication network 225. IP network 226
And is configured.

The home network 221 is a mobile network.
eIP HA 202. The mobile terminal 201 uses the home network 221 as a mobile.
It is a mobile node that has the home network of eIP and HA 202 as the home agent.

The mobile communication network 225 comprises an external network A 222, an external network B 223, and a core network 224. The external network A 222 includes an RNCa 211 equipped with the Mobile IP agent device 203 and an RNCa 211.
BTSa212 and BTSb213 connected to 211
It is configured with.

Similarly, the external network 223 is
RN equipped with a bile IP agent device 204
Cb214 and BTSc2 connected to RNCb214
15 and BTSd 216. The BTSs in the external networks A222 and B223 are not limited to two.

The core network 224 stores the information of mobile terminals connected to the mobile communication network 225.
LR 117, GMSC (Gateway Mobile Switching Center: Gateway M) that is a gateway device that relays between LR 117 and VLR 117 and an IP network that is a public network.
mobile Switching Center) 218
And is configured. An RNC 211 in the external network A 222 and an RNC b 214 in the external network B 223 are connected to the VLR 117.

FIG. 3 is a block diagram showing the structure of the mobile terminal address management table 205 provided in the VLR 117. As shown in FIG. 3, the mobile terminal address management table 205 is composed of a “mobile terminal” column 31 and a “mobile terminal address information” column 32. In the “mobile terminal” column 31, for each external network, that is, RNC
Each time, a series of numbers are added to the mobile terminals connected thereto and registered. Further, in the “mobile terminal address information” column 32, for each mobile terminal registered in the “mobile terminal” column 31, a “mobile terminal identifier” and a “home address (Home Addre
"ss)" and "Care-of Address" are registered respectively.

Next, the registration processing operation of the mobile terminal according to this embodiment will be described with reference to FIG. 4 and also with reference to FIGS. 4. FIG. 4 is a sequence diagram for explaining the mobile terminal registration processing according to the present embodiment.

In step 301 of FIG. 4, the mobile terminal 201
Moves to the range of BTSa 213 in the external network A 222 managed by the RNCa 211 equipped with the Mobile IP agent device 203 as an FA.

The RNCa 211 sends the FA I to the mobile terminal 201 via the BTSb 213 using the control channel.
Broadcast information 302 including P address information is broadcast. The mobile terminal 201 receives the notification information from the RNCa 211, recognizes that it has moved between networks, and the position registration message to be transmitted by the received notification information is the first position registration message in the mobile communication network. Determine whether or not. here,
Since it is the first location registration message in the mobile communication network, the mobile terminal 201 has a location registration message 303 including a mobile terminal identifier and home address information.
Is transmitted to the RNCa 211 via the BTSb 213.

RN that received the location registration message 303
In Ca211, the Mobile IP FA control means 103 of the Mobile IP agent device 203 uses the mobile terminal texture and home address information of the mobile terminal 201 included in the location registration message 303 from the mobile terminal 201, and the IP of the RNCa 211 as the care-of address. The address and home address registration 304 are notified to the VLR 217.

In step 305 of FIG. 4, the VLR 217
The home address registration 304 is received from the RNCa 211, and the mobile terminal identifier and home address of the mobile terminal 201 and the care-of address information are stored in the mobile terminal address management table 205 shown in FIG.

The VLR 217 notifies the home address registration response 30 to notify that the registration processing has been completed normally.
6 is sent to the RNCa 211. Then, RNCa21
1, the Mobile IP FA control means 103 of the Mobile IP agent device 203 causes the mobile terminal 2
01, which includes information on the home address of the mobile terminal 201 and the IP address of the RNCa 211 as the care-of address on behalf of the mobile terminal based on the location registration message in the mobile communication including the home address information.
The mobile IP registration request message is sent to Mobile I.
Notify the PFA means 102. Mobile IP F
A means 102 is a Mobile IPFA control means 10
3 receives the registration request message from Mobile
The IP registration request message 307 is transmitted to the HA 202.

In procedure 308 of FIG. 4, HA 202 receives registration request message 307 from mobile terminal 201, and manages home address and care-of address of mobile terminal 201 included in registration request message 307 in association with HA 202. Then, the registration process in the HA 202 is performed. The HA 202 sends a registration response message 309 to the RNCa 211 to notify the RNCa 211 that the registration process in the HA 202 has been completed normally.

In the procedure 310 of FIG. 4, the Mobile IP FA means 102 of the RNCa 211 receives the registration response message 309 from the HA 202, recognizes that the registration processing in the HA 202 has been completed normally, and the mobile terminal 20
1 home address and care-of address are added to the visit list of FA, and a registration response message is sent to Mobile IP.
Notify the FA control means 103. Then, RNCa2
11 MobileIP FA control means 103
A registration response message 311 is transmitted to the mobile terminal 201 in order to notify that the registration processing of the Mobile IP FA in Ca 211 has been completed. As a result, the mobile terminal 201 becomes communicable (procedure 31 in FIG. 4).
2).

In step 313 of FIG. 4, the mobile terminal 201 in the communicable state moves into the area of the BTSc 215 in the external network B 223 managed by the RNCb 214 equipped with the Mobile IP agent device 204 as the FA. The RNCb 214 uses the control channel for the moving mobile terminal 201 to transmit the BTSc 21
Notification information 31 including FA's IP address information via 5
Notify 4.

[0100] The mobile terminal 201 receives the broadcast information from the RNCb 214, recognizes that the mobile terminal 201 has moved between networks, and the location registration message to be transmitted by the received broadcast information indicates the first position in the mobile communication network. Determine if it is a registration message. Here, since it is not the first location registration message in the mobile communication network, the location registration message 315 including the information of the mobile terminal identifier is transmitted to the RNCb 214 via the BTSc 215 without including the information of the home address of the mobile terminal 201. .

In RNCb 214, Mobile IP
When the Mobile IP FA control unit 103 of the agent device 204 does not include the home address information of the mobile terminal 201 in the location registration message 315 from the mobile terminal 201, the location registration message 315 indicates the first position in the mobile communication network. In order to confirm that it is not a registration message and confirm the home address of the mobile terminal 201, the mobile terminal identifier of the mobile terminal 201 included in the location registration message 315 from the mobile terminal 201 and the IP address of the RNCb 214 as the care-of address are homed. The VLR 217 is notified as the address confirmation 316.

In step 317 of FIG. 4, the VLR 217
When the home address confirmation 316 is received from the RNCb 214, the mobile terminal identifier of the mobile terminal 201 and the care-of address information are stored in the mobile terminal address management table 205 shown in FIG.
5, the home address information of the mobile terminal 201 is read based on the mobile terminal identifier information of the mobile terminal 201.

The VLR 217 notifies the RNCb 214 of the home address information 318 of the mobile terminal 201 read from the mobile terminal address management table. RNCb21
4 Mobile IP agent device 204 Mo
Based on the home address information of the mobile terminal 201 from the VLR 217, the mobile IP FA control unit 103 requests Mobile IP registration including the home address of the mobile terminal 201 and the IP address of the RNCb 214 as the care-of address on behalf of the mobile terminal. The message is notified to the Mobile IP FA unit 102. Then, the MobileIP FA means 102 uses the MobileIP FA means 102.
Upon receiving the registration request message from the e IP FA control unit 103, the mobile IP registration request message 319 is transmitted to the HA 202.

In the procedure 320 of FIG. 4, the HA 202 receives the registration request message 319, manages the home address and the care-of address of the mobile terminal 201 included in the registration request message 319 in the HA 202, and manages them.
The registration process in A202 is performed. HA202 is HA
RNC indicates that the registration process in 202 has been completed normally.
Registration response message 321 to notify b214
To RNCb 214.

In the procedure 322 of FIG. 4, the Mobile IP FA means 102 of the RNCb 214 receives the registration response message 321 from the HA 202, recognizes that the registration processing in the HA 202 has been completed normally, and the mobile terminal 20
1 home address and care-of address are added to the visit list of FA, and the registration response message is sent to Mobile IPF.
Notify the A control means 103. Then, RNCb214
Mobile IPFA control means 103 is
A registration response message 3 is sent to notify that the registration process of the Mobile IP FA in 214 is completed.
23 to the mobile terminal 201. This brings the mobile terminal 201 into a communicable state (procedure 324 in FIG. 4).

As described above, according to the embodiment of the present invention, the mobile terminal and the radio network controller equipped with the FA function do not perform the Mobile IP registration process, but the Mobile IP agent apparatus uses the mobile terminal. Mobile IP registration processing can be performed on behalf of the mobile terminal based on the location registration message in the mobile communication including the home address information of the mobile terminal from. Therefore, it is not necessary to send and receive the registration request message and the registration response message between the mobile terminal and the wireless network control device, and effective use of the wireless band can be achieved.

Also, in the Mobile IP agent device, it is judged whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network. If it is the first location registration message, the mobile IP agent apparatus moves to the VLR. While registering the mobile terminal identifier and home address of the terminal, if it is not the first location registration message, the home address of the mobile terminal is acquired from the VLR based on the mobile terminal identifier included in the location registration message, and Mobile IP Registered now. Except when the location registration message from the mobile terminal is the first location registration message in the mobile communication network, since the home address information of the mobile terminal is not required for the location registration message, overhead for the home address area can be reduced, The efficiency of registration processing can be improved.

Further, the mobile terminal determines whether the location registration message is the first location registration message in the mobile communication network. If the location registration message is the first location registration message, the home address information of the mobile terminal is included. While sending the location registration message, if it is not the first location registration message, the location registration message is sent without including the home address information of the mobile terminal. Except when it is the first location registration message in the communication network, the location registration message does not need the home address information of the mobile terminal, the overhead for the home address area can be reduced, and the efficiency of the registration process can be improved.

In the above embodiment, Mobil is used.
e The case where the e-IP agent device is installed in the wireless network control device has been described, but it is also applicable when the Mobile IP agent device is installed in the BTS (wireless base station device).

[0110]

As described above, according to the present invention, Mob
Since the registration process in ile IP is performed, it is possible to eliminate the need to send and receive the registration request message and the registration response message on the wireless line between the mobile terminal and the network.

[Brief description of drawings]

FIG. 1 is a mobile I according to an embodiment of the present invention.
Block diagram showing the configuration of the P-agent device

FIG. 2 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a mobile terminal address management table of the VLR according to the embodiment of the present invention.

FIG. 4 is a sequence diagram for explaining a mobile terminal registration process in the mobile communication system shown in FIG.

FIG. 5 is a block diagram showing a configuration of a communication system to which Mobile IP is applied.

FIG. 6 is a diagram for explaining encapsulation / decapsulation of IP packets.

FIG. 7 is a sequence diagram for explaining mobile IP mobile terminal registration processing.

FIG. 8 is a block diagram showing a configuration of a mobile communication system described in Japanese Patent Laid-Open No. 11-75245.

FIG. 9 is a block diagram showing the configuration of a wireless network control device described in Japanese Patent Laid-Open No. 11-75245.

FIG. 10 is a sequence diagram for explaining a mobile terminal registration process described in Japanese Patent Laid-Open No. 11-75245.

[Explanation of symbols]

101, 204, 205 Mobile IP agent device 102 Mobile IP foreign agent (FA) means 103 Mobile IP FA control means 104 RNC (radio network control device) 105, BTS (radio base station device) 106, 201 Mobile terminal 202 Home agent ( HA) 205 Mobile terminal management table 211 RNCa (Radio network controller) 214 RNCb (Radio network controller) 217 VLR 218 GMSC 221 Home network 223, 224 External network 224 Core network

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5K030 HA08 HC09 HD03 HD09 JT09                       KA05 LB05                 5K033 CB01 CB09 DA05 DA19 DB12                       DB16 DB18 EC03                 5K067 AA13 BB21 DD17 EE02 EE10                       EE16 GG01 GG11 HH05 HH11                       HH23 JJ66

Claims (16)

[Claims] 1. A base station provided in a wireless network control device for managing a mobile communication network in a mobile communication system to which Mobile IP is applied, or a base station under the control of the wireless network control device and performing wireless communication with a mobile terminal. And a foreign agent means for functioning as a foreign agent of Mobile IP, and the foreign agent means based on a location registration message in mobile communication including home address information of the mobile terminal sent from the mobile terminal. Mob for executing Mobile IP registration processing with a home agent existing in the home network
mobile IP agent device, comprising: 2. A base station that is provided in a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, or is under the control of the wireless network control device and that wirelessly communicates with a mobile terminal. And a foreign agent unit that functions as a foreign agent of Mobile IP and determines whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network, and the location registration message is the mobile communication network. If it is the first location registration message in the mobile communication network, the mobile terminal management device provided in the mobile communication network registers the mobile terminal identifier and home address of the mobile terminal, and the location registration message is the first in the mobile communication network. If it is not the location registration message, the home address of the mobile terminal is acquired from the mobile terminal management device based on the mobile terminal identifier included in the location registration message, and the foreign agent means communicates with the home agent existing in the home network. At Mobi
Mobile IP for executing le IP registration processing
A mobile IP agent device comprising: a foreign agent control means. 3. A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, the function of a mobile node of Mobile IP. And a location registration message transmitting means for transmitting a location registration message including information on a home address as a mobile node when performing location registration processing for the wireless network control device via the base station. A mobile terminal characterized by the above. 4. A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, the function of a mobile node of Mobile IP. Equipped with, determines whether the location registration message to be transmitted by receiving the notification information sent from the wireless network control device via the base station is the first location registration message in the mobile communication network, and transmits If the location registration message to be transmitted is the first location registration message in the mobile communication network, the location registration message including the home address information of the mobile node is transmitted, and the location registration message to be transmitted is transmitted to the mobile communication network. First location registration message in If not, the mobile terminal is provided with a location registration message transmitting means for transmitting a location registration message that does not include information on the home address of the mobile node. 5. A wireless network control device that manages a mobile communication network, a base station under the control of the wireless network control device, and a mobile terminal that performs wireless communication with the base station, wherein Mobile IP is applied. In the mobile communication system according to claim 1, the mobile terminal is equipped with a function of a mobile node of Mobile IP, and is used as a mobile node when performing location registration processing with respect to the wireless network control device via the base station. A location registration message transmitting means for transmitting a location registration message including home address information, wherein the wireless network control device or the base station is Mo
Mobile IP registration processing is performed between the foreign agent means functioning as the foreign agent of the mobile IP and the home agent existing in the home network in the foreign agent means based on the location registration message sent from the mobile terminal. A mobile communication system comprising a Mobile IP agent device having Mobile IP foreign agent control means to be executed. 6. A mobile terminal management device for managing a mobile terminal identifier and a home address of a mobile terminal that has visited the mobile communication network, wherein the Mobile IP foreign agent control means in the Mobile IP agent device is the mobile terminal. Determines whether the location registration message from the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the mobile terminal management device If the location registration message is not the first location registration message in the mobile communication network, the mobile terminal management apparatus determines the location based on the mobile terminal identifier included in the location registration message. Obtains the home address of the mobile agent, and the foreign agent means exchanges Mobile IP with a home agent existing in the home network.
6. The mobile communication system according to claim 5, wherein the registration process is executed. 7. A wireless network control device that manages a wireless network, a base station under the control of the wireless network control device, and a mobile terminal that performs wireless communication with the base station, and Mobile IP is applied. A mobile communication system, wherein the mobile terminal is equipped with a function of a mobile node of Mobile IP, and receives the notification information sent from the radio network controller via the base station to perform position registration. Determine whether the message is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, location registration including information on the home address of the mobile node Send message, location registration message in mobile communication network If not the first location registration message in, the location registration message transmitting means for transmitting the location registration message that does not include the information of the home address as the mobile node,
Wherein the wireless network control device or the base station is Mo
Mobile IP registration processing is performed between the foreign agent means functioning as the foreign agent of the mobile IP and the home agent existing in the home network in the foreign agent means based on the location registration message sent from the mobile terminal. A mobile communication system comprising a Mobile IP agent device having Mobile IP foreign agent control means to be executed. 8. A mobile terminal management device for managing a mobile terminal identifier and a home address of the mobile terminal, wherein the M
Mobile in the mobile IP agent device
The e IP foreign agent control means determines whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network, and the location registration message is the first location registration message in the mobile communication network. In this case, the mobile terminal identifier and home address of the mobile terminal are registered in the mobile terminal management device, and if the location registration message is not the first location registration message in the mobile communication network, the mobile terminal identifier included in the location registration message. 8. The home address of the mobile terminal is acquired from the mobile terminal management device based on the request, and the foreign agent unit is caused to execute a Mobile IP registration process with a home agent existing in the home network. Description Mobile communication system. 9. A wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, or a base station that is under the control of the wireless network control device and wirelessly communicates with a mobile terminal. With the foreign agent function of the Mobile IP to be equipped, with the home agent existing in the home network based on the location registration message in the mobile communication including the home address information of the mobile terminal sent from the mobile terminal. Mo
A mobile terminal registration method, characterized in that a mobile IP registration process is executed. 10. A wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied, or a base station that is under the control of the wireless network control device and wirelessly communicates with a mobile terminal. The foreign agent function of Mobile IP to be installed determines whether the location registration message from the mobile terminal is the first location registration message in the mobile communication network, and the location registration message is the first location registration message in the mobile communication network. If it is, register the mobile terminal identifier and home address of the mobile terminal in the mobile terminal management device provided in the mobile communication network, and if the location registration message is not the first location registration message in the mobile communication network, , Acquires the home address of the mobile terminal from the mobile terminal management device based on mobile terminal identifier included in the location registration message, Mobile between the home agents in the home network
A mobile terminal registration method, characterized in that an IP registration process is executed. 11. A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied is equipped with a mobile node function of Mobile IP, A mobile terminal registration method comprising transmitting a location registration message including information on a home address as a mobile node when performing location registration processing with respect to the wireless network control device via the base station. 12. A mobile terminal that performs wireless communication with a base station under the control of a wireless network control device that manages a mobile communication network in a mobile communication system to which Mobile IP is applied is equipped with a mobile node function of Mobile IP, Judge whether the location registration message to be transmitted by receiving the notification information sent from the wireless network control device via the base station is the first location registration message in the mobile communication network,
If the location registration message to be transmitted is the first location registration message in the mobile communication network, the location registration message including the home address information of the mobile node is transmitted, and the location registration message to be transmitted is the mobile communication. A mobile terminal registration method, comprising transmitting a location registration message that does not include information on a home address of a mobile node if it is not the first location registration message in the network. 13. A wireless network control device that manages a mobile communication network, a base station under the control of the wireless network control device, and a mobile terminal that performs wireless communication with the base station, wherein Mobile IP is applied. In the mobile communication system according to claim 1, the mobile terminal is equipped with a Mobile IP mobile node function, and when a location registration process is performed on the radio network controller via the base station, a home address of the mobile node is set. A location registration message including information is transmitted, and the wireless network control device or the base station
A mobile device equipped with a foreign agent function of mobile IP, and performing mobile IP registration processing with a home agent existing in a home network based on the location registration message sent from the mobile terminal. Terminal registration method. 14. A mobile terminal management device that manages a mobile terminal identifier and a home address of a mobile terminal that has visited the mobile communication network, wherein the wireless network control device or the base station is located from the mobile terminal. It is determined whether the registration message is the first location registration message in the mobile communication network, and if the location registration message is the first location registration message in the mobile communication network, the mobile terminal management device causes the mobile terminal of the mobile terminal. The identifier and the home address are registered, and if the location registration message is not the first location registration message in the mobile communication network, the home address of the mobile terminal from the mobile terminal management device based on the mobile terminal identifier included in the location registration message. Get and stay in your home network 14. The mobile terminal registration method according to claim 13, wherein Mobile IP registration processing is executed with an existing home agent. 15. A wireless network control device that manages a wireless network, a base station under the control of the wireless network control device, and a mobile terminal that performs wireless communication with the base station, and Mobile IP is applied. In the mobile communication system, the mobile terminal is equipped with a mobile node function of Mobile IP, and a location registration message to be transmitted by receiving notification information transmitted from the radio network controller via the base station moves. It is determined whether it is the first location registration message in the communication network, and if the location registration message is the first location registration message in the mobile communication network, a location registration message including information on the home address of the mobile node is transmitted. However, the location registration message is displayed in the mobile communication network. If it is not the first location registration message in, the location registration message that does not include the home address information of the mobile node is transmitted, and the radio network controller or the base station
A mobile device equipped with a foreign agent function of mobile IP, and performing mobile IP registration processing with a home agent existing in a home network based on the location registration message sent from the mobile terminal. Terminal registration method. 16. A mobile terminal management device that manages a mobile terminal identifier and a home address of the mobile terminal, wherein the wireless network control device or the base station receives a location registration message from the mobile terminal in a mobile communication network. If the location registration message is the first location registration message in the mobile communication network, the mobile terminal identifier and the home address of the mobile terminal are registered in the mobile terminal management device. If the location registration message is not the first location registration message in the mobile communication network, the home address of the mobile terminal is acquired from the mobile terminal management device based on the mobile terminal identifier included in the location registration message, and the home network is added to the home network. With existing home agents The method of registering a mobile terminal according to claim 15, wherein a Mobile IP registration process is executed.