JP2003046680A - Dial up router for mobile object packet communication - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dial up router for mobile object packet communication which dial-connects fixed side LAN and a mobile side terminal in mobile object packet communication through a telecommunications provider. SOLUTION: The dial up router for mobile object packet communication is provided with a function for giving a connection request to a mobile radio device connected to the telecommunications provider by a radio signal from fixed side LAN which is connected with the telecommunications provider by a private line and constitute an peculiar network and selecting a network to which fixed side LAN emitting the connection request belongs from the identification code of a transmission source, which the telecommunications provider gives, a function selecting the arrival procedure of a packet signal peculiar to the telecommunications provider which is previously set, a function for selecting a procedure which dial-connects a system to fixed side LAN of the transmission source, which belongs to the selected network, in accordance with the selected arrival procedure and a function for connecting the terminal of fixed side LAN to the mobile side terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dial-up router for packet communication capable of dial-connecting a fixed LAN and a mobile terminal in packet communication via a telecommunications carrier.

[0002]

2. Description of the Related Art In a LAN connection service for packet communication, a packet signal is generally used by an original receiving procedure defined by a telecommunications carrier which constitutes a network connected to a fixed LAN by a dedicated line. The procedure is different from the existing RAS (remote access server) / client procedure. The procedure for logging in to the fixed LAN is individually specified by the LAN administrator.

In the case of the RAS server 32 which is generally used, as shown in FIG. 6, when the fixed side LAN 30 dials (connection request) the mobile side, the telecommunications carrier 31 uses a unique user for packet data. The RAS server 32 is called with a name and password added. Fixed LAN
When the RAS server 32 recognizes the call according to the service and function provided by the layer 1 established between the RAS server 32 and the RAS server 32, the user ID request command is sent. This user ID request command is a layer 1
Is transmitted to the fixed-side LAN 30 according to the regulations.

Fixed side L according to user ID request command
The user ID is sent from the AN 30, and when the RAS server 32 recognizes the user ID, the fixed LAN 3 is automatically generated.
Login is completed according to the connection procedure (PPP procedure) of the network to which 0 belongs. Therefore, from the fixed side terminal of the fixed side LAN 30 (hereinafter referred to as DTE, but not shown), the communication protocol TCP /
According to the IP procedure, data is sent to the other party who has logged in. As described above, the RAS server 32 is configured so that when a call is received, the receiving LAN enters the server mode and logs in.

[0005]

In the case of the RAS server 32, such an operation is acceptable, but digital mobile communication such as digital car telephone system standard RCR STD27 or domestic mobile satellite communication using the S band. In the case of mobile communication such as digital satellite communication such as the system standard ARIB STD T49, the mobile side is regulated not to automatically enter the server mode like the RAS server 32 even if a connection request is made. ing. Therefore, when the mobile side detects a connection request from the fixed side LAN 30, it is necessary for itself to perform a connection operation to the fixed side LAN 30 of the transmission source. Therefore, the fixed LAN3
There has been a demand for means by which a DTE of 0 can access a mobile terminal (hereinafter, referred to as MDTE) by dialup.

[0006]

The invention according to claim 1 is, in a dial-up router for mobile packet communication, a fixed-side LAN that is connected to a telecommunications carrier by a dedicated line to form an independent network. A connection request to a mobile wireless device that is connected to the telecommunications carrier by a radio signal, and selects the network to which the fixed-side LAN that issued the connection request belongs from the identification code of the transmission source assigned by the telecommunications carrier. , A function for selecting a preset packet signal receiving procedure specific to the telecommunications carrier and a procedure for dial-connecting to the fixed side LAN of the sender belonging to the selected network according to the selected receiving procedure. The function and the function to connect the fixed LAN terminal to the mobile terminal according to the selected dial connection procedure. Example was a dial-up router of the mobile packet communication.

According to the first aspect of the present invention, a plurality of mobile terminals are connected to form a mobile LAN,
It is a dial-up router for mobile packet communication having a function of selecting a mobile terminal for which a connection is requested from the mobile LAN.

According to a third aspect of the present invention, in a dial-up router for mobile packet communication, a fixed-side LAN and a telecommunications carrier, each of which is connected to the telecommunications carrier by a dedicated line to form its own network. When the mobile wireless device connected by a wireless signal is connected according to the dial connection procedure unique to the telecommunications carrier, the dial-up router has a function of connecting to the mobile wireless device as well as to the mobile terminal. It is provided with a function of connecting to a fixed-side terminal in the fixed-side LAN that requested connection.

According to a fourth aspect of the invention, in the third aspect, a plurality of mobile terminals are connected to form a mobile LAN,
It is provided with a function of selecting a mobile terminal for which a connection is requested from the mobile LAN.

According to the invention of claim 5, in claim 4, the connection with the mobile terminal has a function of connecting via Ethernet.

[0011]

DETAILED DESCRIPTION OF THE INVENTION

First Embodiment A first embodiment of the present invention is a mobile radio 2
Is in a state where it is not connected to the telecommunications carrier 7, and will be described below with reference to FIGS. 1, 2, and 4.
FIG. 1 is a system configuration diagram of a general packet communication service system to which the present invention is applicable.
RIB STB T49 (national standard for digital satellites) mobile radio 2 and artificial satellites (N-STA)
R) 3, a ground station 4, a satellite communication network 5, a packet communication network 6, a telecommunications carrier 7, an intranet 8 and the Internet 9. FIG. 2 shows an embodiment of the present invention, and is a configuration diagram showing an example of a packet communication service to which the dial-up router 1 of the present invention is applied.
FIG. 6 is an explanatory diagram showing the operation of the dial-up router according to the present invention.

In FIG. 2, reference numerals 10 to 12 denote private fixed LANs, which are connected to the telecommunications carrier 7 by dedicated lines 13 to 15 to form their own networks 16 to 18, respectively. The incoming procedure of the packet signal includes a unique incoming procedure defined by the telecommunications carrier 7, and the incoming procedure is preset. The telecommunications carrier 7 makes a connection request from the fixed-side LANs 10 to 12 to the mobile wireless device 2, that is, when the fixed-side terminal 21 (hereinafter referred to as DTE 21) in the fixed-side LANs 10 to 12 accesses the mobile wireless device 2. An identification code for identifying the fixed-side LAN (for example, the mobile wireless device 2 is the fixed-side LAN 10
-12 is given a dial number for dial connection) to call the mobile wireless device 2.

Next, the connection procedure peculiar to the fixed-side LAN administrator, that is, the user name and the password are individually defined by the LAN administrator, and the fixed-side LAN 10 is operated according to this connection procedure.
-12 are configured to log in.

The mobile wireless device 2 is connected to the telecommunications carrier 7 by a wireless signal and is also connected to the dial-up router 1 via the interface 19 of RS 232C. Furthermore, the dial-up router 1 uses TCP /
The mobile terminal (hereinafter, referred to as MDTE) 20 is configured to be accessed by the IP procedure. In addition, MDTE2
0 is a data terminal on the mobile side, which is connected to the fixed side LA
The mobile LAN may be configured in the same manner as N.

The dial-up router 1 selects a preset procedure for receiving a packet signal unique to the telecommunications carrier 7 and an identification code assigned by the telecommunications carrier 7, and receives the selected bucket signal. Log in to the fixed LAN by the procedure and the connection procedure unique to the fixed LAN administrator.

In this embodiment, since the mobile radio 2 is not connected to the telecommunications carrier 7, for example,
Connection request from the fixed LAN 10 to the mobile wireless device 2, that is, TCP from any DTE 21 in the fixed LAN 10
When the MDTE 20 is accessed by the / IP procedure, a call (connection request) is sent from the telecommunications carrier 7 to the mobile wireless device 2 as shown in FIG.

In the calling message at this time, the telecommunication carrier 7 identifies the fixed LAN among the fixed LANs 10 to 12 to identify the fixed LAN (specifically, the identification code of the fixed LAN). RS232C interface 1 is added with the dial number when the mobile wireless device 2 dial-connects to the fixed LANs 10-12.
“Call” and “fixed LAN identification code” are transmitted to the dial-up router 1 via 9. By this call, the telecommunications carrier 7 and the dial-up router 1
Layer 1 is established between the
A user ID request is sent from the fixed-side LAN 10 to the dial-up router 1 according to the services and functions provided by the upper layer between the fixed-side LAN 10 (which is the transmission source) and the dial-up router 1.

According to this user ID request, the user ID is sent from the dial-up router 1 to the fixed LAN 10. That is, the dial-up router 1 is
It is switched according to the "AN identification code" to identify the fixed LAN 10 of the transmission source, that is, the networks 16-18.
The network from which the connection request is made is identified, and this information is transmitted to the wireless mobile device 2. The network to which the fixed-side LAN 10 of the transmission source belongs is identified, and here, for the first time, the fixed-side L has a connection procedure (PPP procedure in this embodiment) unique to the administrator of the fixed-side LANs 1 to 3.
The AN 10 is connected to the dial-up router 1 and the login is completed.

Therefore, the DTE 21 of the fixed LAN 10
Via TCP / IP via dial-up router 1,
Access the terminal MDTE20 on the mobile side, and perform services such as necessary mail transfer, file transfer, and Web services on the fixed side.
Calls can be sent from the AN 10 and the mobile side MDTE 20. Similarly, for access from the fixed-side LAN 11 and LAN 12, log-in is performed with a connection procedure to each fixed-side LAN, and MD is accessed via the dial-up router 1.
You can access TE20. The fixed side L
Fixed LAN 11 when logged in to AN10
Also, it cannot be accessed from the fixed LAN 12.

[0020]

Second Embodiment A second embodiment of the present invention is a mobile radio 2
Shows a dial connection procedure of the telecommunications carrier 7, for example, a state of being connected to the fixed LAN 10, which will be described below with reference to FIGS. 3 and 5. FIG. 5 is a configuration diagram showing a second embodiment of the present invention, and FIG. 5 is an explanatory diagram showing the operation of the dial-up router according to the present invention.

The mobile wireless device 2 uses a dial connection procedure with the telecommunications carrier 7, for example, in this embodiment, a fixed LA.
Since it is connected to N10, the fixed LAN 10
When you access MDTE20 by CP / IP procedure,
As shown in FIG. 5, a call (connection request) is sent to the mobile wireless device 2 through the telecommunications carrier 7 in a dial connection procedure. Then, as in the first embodiment, the telecommunication carrier 7 sends the identification code of the fixed LAN 10 to the calling message at this time. In this case,
Since the fixed side LAN is determined, the identification code of the fixed side LAN 10 (specifically, the mobile wireless device 2 is fixed side LAN 1
Transmission of dial number when dialing 0) is optional. Since the fixed-side LAN is determined, the dial-up router 1 can omit the operation of identifying the connection procedure unique to the fixed-side LAN 10 by the identification code of the fixed-side LAN 10 via the RS 232C interface 19.

According to this user ID request, the user ID is sent from the dial-up router 1 to the fixed LAN 10. That is, the dial-up router 1 is
The fixed side LAN 10 of the transmission source is selected, that is, the network 16 to 1
The network from which the connection request is made out of 8 is transmitted, this information is transmitted to the wireless mobile device 2, and the connection procedure unique to the administrator of the fixed LANs 1 to 3 (PPP procedure in the case of this embodiment) for the first time. ), The fixed LAN 10 is connected to the dial-up router 1, and the login is completed.

Therefore, the DTE 21 of the fixed LAN 10
Can access the MDTE 20 via the dial-up router 1 by Ethernet in this embodiment. However, when the fixed LAN 10 is connected, the MDTE 20 cannot be accessed from the fixed LAN 11 and the fixed LAN 12. That is, the mobile wireless device 2 uses the dial number of the dial connection for LAN1.
0, 11, and 12 can be selected.

[0024]

According to the invention of claim 1, a dial-up router for mobile packet communication is connected to a telecommunications carrier through a dedicated line to form a unique network. With a function to select a network to which the fixed-side LAN that issued the connection request belongs, from the identification code of the sender assigned by the telecommunications carrier. The function of selecting the incoming procedure of the packet signal peculiar to the telecommunications carrier, the function of selecting the procedure of dialing the fixed side LAN of the sender belonging to the selected network according to the selected incoming procedure, and the function of selecting the procedure. It has a function to connect the fixed LAN terminal to the mobile terminal according to the selected dial connection procedure. MD of the moving side from the DTE in the LAN
You can access TE by dialing up. Further, it is possible to log in by switching the fixed-side LAN to which the fixed-side terminal that accessed the MDTE on the moving side by dialup belongs. LAN for conventional packet service
You can use incoming packets with the connection service.

In the invention according to claim 2, a dial-up router for mobile packet communication connects a plurality of mobile side terminals to form a mobile side LAN, and from among the mobile side LAN, a mobile station requested to connect is connected. Since it has the function of selecting the side terminal, in addition to the effect of the invention according to claim 1, it is also possible to access the mobile side terminal in the mobile side LAN from the fixed side terminal in the fixed side LAN. I can.

According to the invention of claim 3, a dial-up router for mobile packet communication is connected to a telecommunications carrier by a dedicated line to form a unique network and a fixed LAN and a telecommunications carrier. When the mobile wireless device connected by a wireless signal is connected according to the dial connection procedure unique to the telecommunications carrier, the dial-up router has a function of connecting to the mobile wireless device as well as to the mobile terminal. Since it has a function of connecting to the fixed-side terminal in the fixed-side LAN that has requested the connection, it is possible to use the incoming of the packet in the LAN connection service of the conventional packet service.

According to the invention of claim 4, in claim 3, a plurality of mobile terminals are connected to form a mobile LAN,
Since the mobile terminal having the connection request is selected from the mobile LAN, in addition to the effect of the invention according to claim 3, in addition to the effect of the invention according to claim 3, It is also possible to access the mobile side terminal.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention and is a system configuration diagram of a general packet communication service system to which the present invention is applicable.

FIG. 2 shows the first embodiment of the present invention and is a configuration diagram showing an example of a mobile packet communication service to which the dial-up router 1 of the present invention is applied.

FIG. 3 shows a second embodiment of the present invention and is a configuration diagram showing an example of a mobile packet communication service to which the dial-up router 1 of the present invention is applied.

FIG. 4 shows the first embodiment of the present invention and is an explanatory diagram showing the operation of the dial-up router of the present invention.

FIG. 5 shows the second embodiment of the present invention and is an explanatory diagram showing the operation of the dial-up router.

FIG. 6 is an explanatory diagram showing an operation of a conventional RAS server.

[Explanation of symbols]

1 dial-up router 2 mobile radio 7,31 Telecommunications carrier 10-12 Fixed LAN 13-15 Private line 16-18 network 20 Mobile terminal (MDTE) 21 Fixed side terminal (DTE) in fixed side LAN

Continued front page    (72) Inventor Yoshimoto Koushi             753-1 Shinmaruko-cho, Nakahara-ku, Kawasaki-shi, Kanagawa (72) Inventor Shuichi Ishiguro             2-5 Minami-Shinagawa 2-5 Stock Association, Shinagawa-ku, Tokyo             Company Micro Research Institute F-term (reference) 5K030 HA08 HC01 HC09 HC14 HD03                       HD05 JL01 JL02 JT09 KA01                       KA02                 5K051 BB02 CC02 CC05 CC07 GG02                       HH17                 5K067 AA21 AA34 BB04 BB21 CC08                       DD13 DD16 DD23 EE02 EE10                       HH21                 5K101 KK20 LL02 LL12 RR05 RR11                       SS07

Claims (5)

[Claims] 1. A dial-up router for mobile packet communication, which is connected to a telecommunications carrier by a wireless signal from a fixed-side LAN that is respectively connected to the telecommunications carrier by a dedicated line and forms its own network. And a function of selecting a network to which the fixed-side LAN that has transmitted the connection request belongs from the identification code of the transmission source assigned by the telecommunications carrier, and the preset telecommunications. A function of selecting an incoming procedure of a packet signal peculiar to a business operator, and a function of selecting a procedure of dial-connecting to a fixed-side LAN of the sender of the selected network according to the selected incoming procedure.
According to the selected dial connection procedure, the fixed LAN
A dial-up router for mobile packet communication, which has a function of connecting the mobile terminal to the mobile terminal. 2. The mobile terminal has a function of connecting a plurality of mobile terminals to form a mobile LAN, and selecting the mobile terminal requested to connect from among the mobile LANs. A dial-up router for mobile packet communication according to claim 1. 3. In a dial-up router for mobile packet communication, a fixed-side LAN, which is connected to a telecommunications carrier by a dedicated line and forms its own network, is connected to the telecommunications carrier by a wireless signal. When the mobile wireless device is connected by a dial connection procedure unique to the telecommunications carrier, the dial-up router connects to the mobile wireless device and a function to connect to a mobile terminal,
A dial-up router for mobile packet communication, comprising a function of connecting to a fixed-side terminal in a fixed-side LAN that requested connection. 4. The mobile terminal has a function of configuring a mobile LAN by connecting a plurality of mobile terminals and selecting a mobile terminal requested to be connected from the mobile LAN. A dial-up router for mobile packet communication according to item 3. 5. The dial-up router for mobile packet communication according to claim 4, wherein the connection with the mobile side terminal has a function of connecting via an Ethernet (registered trademark).