JPH11331908A - Mobile communication call control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively offer versatile multimedia services by performing negotiation between an originating mobile machine and a receiving terminal when the mobile machine makes a call in an area it roams, carrying out the session control if the negotiation succeeds, but notifying the mobile machine of a failure of the negotiation if the negotiation fails. SOLUTION: A B-side visitor network exchange 200 receives an authentication answer signal from a roaming mobile machine 600 and checks it to send an inter-office session call setting signal to a C-side fixed network exchange 300 if the check result is OK. The exchange 300 sends a session call setting signal to a terminating fixed terminal 700 to secure a pass band, the communication quality and an application corresponding to the service request characteristic against the terminal 700. When the service characteristics are coincident with each other between the exchange 300 and the terminal 700, a session answer signal is sent to the exchange 200 via the exchange 300 to perform the general originating connection processing. Then the exchange 200 sends an answer signal to the machine 600 and completes the originating connection sequence started from a roaming subscriber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication call control method, and more particularly to a multimedia mobile communication call control method requiring various communication bands, communication qualities and application software.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Laid-Open Publication No.
No. 27 will be described. Here, when a call arrives at a roaming mobile subscriber, the call is relayed from the home intra-exchange to the destination intra-exchange, and the incoming call is controlled by the visitor intra-exchange, and the paging from the visitor intra-exchange is performed. After the response of the mobile subscriber, call control is performed to set an outgoing / incoming communication line.

[0003] In addition, transmission from a mobile subscriber is directly controlled by a visitor internal exchange based on registration information in a visitor location register, and a wireless line is secured and authenticated between the mobile and the originating exchange. Thereafter, call control for setting an outgoing / incoming communication line is performed.

[0004]

As described above, the conventional mobile communication call control method has a problem in that the outgoing / incoming / outgoing control of the roaming mobile subscriber is performed in the same manner as a general telephone, after setting up a communication line, and then requesting a service. In order to secure a communication band, communication quality, and application software corresponding to the characteristics, securing communication resources may be wasted or a connection delay may occur. For this reason, there has been a problem in that the serviceability for mobile subscribers is reduced.

An object of the present invention is to provide a mobile communication call control method for efficiently realizing various multimedia services in view of the above-mentioned problems of the prior art.

[0006]

In order to solve the above-mentioned problems, a mobile communication call control method according to the present invention has a home for storing an authentication key of a mobile subscriber, subscriber information, a roaming number, roaming destination network information and the like. In a mobile communication network in which a home network having a location register and a visitor network at a roaming destination of a mobile device having a visitor location register that stores roaming numbers and the like are connected by a communication line, a roaming destination visitor network uses At the time of outgoing, in order to negotiate between the originating and arriving of communication resources, communication quality, application software, etc. as service request characteristics between the originating mobile device and the terminating terminal, session control is performed by transmitting / receiving a session call / response signal, The originating exchange is notified of the negotiation result, and thereafter the originating exchange establishes a communication line based on the negotiation result. Performs a general call control for the purpose of constant, if negotiation is not established, and notifies the originating mobile station, also when there is an incoming call to a roaming mobile station,
On the home network, roaming destination information, mobile station information, resource information, etc. are collected from the home location register, and based on the roaming destination network information, a signal line is sent to the roaming destination exchange in the visitor network via the home network exchange of the terminating mobile station. so,
In order to make a negotiation request between sending and receiving to secure communication bandwidth, communication quality, and application software as service request characteristics, session control is performed between the calling terminal and the mobile device by sending and receiving session call and response signals, and negotiation is normal /
Regardless of fraudulent status, a session response signal is sent from the visitor exchange to the originating exchange to which the originating terminal belongs, and general call control for the purpose of setting up a communication line based on the negotiation result is performed thereafter. It is assumed that.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.

In FIG. 1, an A company home network switch 100 having an A company home location register 101 (HLR), a B company visitor network switch 200 having a B company visitor location register 201,
It is configured by a C operator fixed network exchange 300, a fixed telephone 700 belonging to the C operator, and a roaming mobile device 600. The A-side home network switch 100, the B-side visitor network switch 200, and the C-side fixed network switch 300 are mutually connected by a communication line 400, and the A-side home network switch 10
0, the A-side home location register 101, the B-side visitor network switch 200, the B-side visitor location register 201, and the C-side fixed network switch 300 are mutually connected by a data line 500.

Next, the operation of this embodiment will be described with reference to the drawings.

First, outgoing call control from a roaming subscriber will be described with reference to the drawings. FIG. 2 is a diagram showing a sequence of outgoing call control from a roaming mobile subscriber.

When the B-side visitor network exchange 200 receives the session call setting signal 11 from the roaming mobile station 600, the B-side visitor network switch 200 obtains the mobile station information from the subscriber number in the session call setting signal. 12 for A
To the home location register 101. Upon receiving the subscriber information response signal 13 from the A-side home location register 101, the B-side home network switch 200
Transmits the authentication request signal 14 for authentication to the roaming mobile station 6.
Return to 00. Upon receiving the authentication response signal 15 from the roaming mobile station 600, the B-side visitor network exchange 200 checks the authentication and, if OK, transfers the service request information in the session call setup signal 11 to the destination terminal 700 and transmits the service request. In order to negotiate the call, the information is converted 16 into routing information for the C-side fixed network exchange 300 to which the called subscriber belongs, and an interoffice session call setting signal 17 is sent to the C-side fixed network exchange 300.

Next, in the C-side exchange 300, the fixed incoming call terminal 7 is secured in order to secure the communication band, communication quality, and application corresponding to the service request characteristic with the fixed incoming call terminal 700.
00, the session call setting signal 18 is sent out. When the fixed terminal 700 receives the session call setting signal 18,
It confirms whether the service request characteristics match, and returns the result to the C-side fixed network exchange 300 as a session response signal 19. The C-side fixed network switch 300 sends the negotiation result of the session response signal 19 on the inter-station session response signal 20 and returns it to the B-side visitor network switch 200. The B-side visitor network exchange 200 returns the session response signal 21 to the mobile station 600 irrespective of the session result.
Upon receiving the session response signal 21, the originating mobile station 600 returns a session confirmation signal 22 to the B-side visitor network exchange 200 if the negotiation result matches the mobile station.

When receiving the session confirmation signal 22, the B-side visitor network exchange 200 performs a general outgoing connection process. That is, the B-side visitor network switch 200 sends the calling signal 23 to the C-side fixed network switch 300 to which the destination terminal 700 belongs. Further, the C-side fixed network exchange 300 sends a call setting signal 24 to the destination terminal 700. Further, a completion acceptance signal 25 is transmitted from the destination exchange 300 to the B-side visitor network exchange 200. Next, when receiving the calling signal 26 from the called terminal 700, the called-side exchange 300 sends out a calling signal 27 to the B-side visitor network exchange 200. Further, the B-side visitor network exchange 200 sends a paging signal 28 to the roaming mobile station 600. The destination exchange 300 is the destination terminal 70.
If the response signal 29 is received from 0, the response signal 30 is changed to B
It is sent to the side visitor network exchange 200. The B-side visitor network exchange 200 sends the response signal 31 to the roaming mobile station 600.
Send to Thus, the outgoing connection sequence from the roaming subscriber is completed.

Next, control of an incoming call to a roaming subscriber will be described with reference to FIG. FIG. 3 is a sequence diagram of control of an incoming call to a roaming subscriber according to the present embodiment.

When there is an incoming call from the C-side fixed network terminal 700 to the roaming mobile station 600, first, the C-side fixed terminal 70
0 indicates that the session call setting signal 51 is to be transmitted to the C-side fixed network switch 3.
Send to 00. In order to match the service request characteristics (communication band, communication quality, application, etc.) with the terminating mobile device 600, the C-side fixed network switch 300 sends an interoffice session call signal to the A-side home network switch 100 of the roaming mobile device 600. 52 is sent out. The A-side home network switch 100 sends a subscriber information request signal 53 to the A-side home location register 101 and receives a subscriber information response signal 54 from the A-side home location register 101 in order to collect roaming destination information and the like.

Next, the A-side home network switch 100 performs routing information collection 55 from the roaming destination information, and the B-side visitor network switch 20 in which the roaming mobile station 600 is located.
An inter-office session call signal 56 is sent to 0.

When the B-side visitor network switch 200 receives the inter-office session call signal 56, the roaming mobile station 600 receives the paging signal 57 in order to secure a wireless line with the roaming mobile station 600 first. Broadcast to the area.

Next, when the paging response signal 58 from the roaming mobile station 600 is received, the B-side visitor network switch 2
00 sends an authentication request signal 59 to the roaming mobile device 600. Upon receiving the authentication response signal 60 from the terminating mobile device 600, the B-side visitor network exchange 200 checks the authentication, and if it is OK, sends the session call setting signal 61 to the terminating mobile device 600 for negotiating the originating and terminating terminal of the service request characteristic. I do.

The mobile station 600 sends the result of matching the service request characteristics with its own terminal capability to the B-side visitor network exchange 200 as a session response signal 62. The B-side visitor network exchange 200 sends the negotiation result to the A-side home network exchange 100 as an interoffice session response signal 63.

The A-side home network switch 100 returns an interoffice session response signal 64 to the C-side fixed network switch 300.
The C-side fixed network exchange 300 returns the session result to the C-side fixed network originating terminal 700 on the session response signal 65. The C-side fixed network originating terminal 700 confirms the negotiation result, and if the negotiation is successful, sends the session confirmation signal 66 to the C-side fixed network exchange 3.
Return to 00.

Thereafter, the C-side fixed network switch 300 executes a general incoming call connection process. First, a call signal 67 is sent to the A-side home network switch 100 for setting a communication line call. The A-side home network switch 100 sends a calling signal 68 to the B-side visitor network switch 200. The B-side visitor network exchange 200 sends a call setup signal 69 to the roaming mobile station 600. At the same time, the B-side visitor network exchange 200 sends a completion acceptance signal 70 to the A-side home network exchange 100,
The side home network switch 100 sends a completion acceptance signal 71 to the C side fixed network switch 300. C-side fixed network switch 300 transmits call acceptance signal 72 to calling terminal 700.

Paging signal 7 from roaming mobile station 600
Receiving 3, the B-side visitor network exchange 200 sends a paging signal 74 to the A-side home network exchange 100. Upon receiving the call signal 74, the A-side home network switch 100 sends a call signal 75 to the C-side fixed network switch 300, and
0 sends a calling signal 76 to the calling terminal 700. Also, upon receiving the response signal 77 from the roaming mobile device 600,
The B-side visitor network exchange 200 returns a response signal 78 to the A-side home network exchange 100. A side home network exchange 10
0, upon receiving the response signal 78, sends the response signal 79 to the C-side fixed network exchange 300. Further, the exchange 300 sends the response signal 80 to the C-side fixed terminal 700. Thus, the incoming call to the roaming subscriber is completed.

[0023]

As described above, in the mobile communication call control method according to the present invention, the session control between the calling terminal and the destination terminal for securing the communication band and communication quality that can be matched with the service request is performed by controlling the capture of the general communication line. Before performing the above, there is an effect that the resource efficiency is improved with a good affinity for the multimedia communication. In addition, since session control is performed in advance, there is an effect that the connection delay is minimized, and that the convenience of communication can be promptly notified to the user, thereby improving convenience.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a mobile communication network system configuration according to an embodiment of the present invention;

FIG. 2 is a diagram showing a calling sequence from a roaming subscriber in the present embodiment.

FIG. 3 is a diagram showing an incoming call sequence to a roaming subscriber in the embodiment.

[Explanation of symbols]

 100 A-side home network switch 101 A-side home location register 200 B-side home network switch 201 B-side visitor location register 300 C-side fixed network switch 400 communication line 500 data line 600 mobile device 700 fixed terminal

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04M 3/00

Claims (6)

[Claims] 1. A mobile station having a home location register for storing a mobile subscriber's authentication key, subscriber information, roaming number, roaming destination network information and the like, and a mobile station having a visitor location register for storing roaming number and the like. In a mobile communication network in which a roaming destination visitor network is connected by a communication line, when a call originates from a mobile device in a roaming destination visitor network, communication resources and communication as service request characteristics between a calling mobile device and a receiving terminal. In order to negotiate between quality and application software, the session is controlled by sending and receiving session call / response signals, the result of the negotiation is notified to the originating exchange, and thereafter, communication based on the negotiation result is performed by the originating exchange. Performs general call control for the purpose of line setting,
A mobile communication call control method characterized in that if negotiation is not successful, a notification to that effect is sent to the calling mobile station. 2. A mobile terminal having a home location register storing a mobile subscriber's authentication key, subscriber information, roaming number, roaming destination network information and the like, and a mobile station having a visitor location register storing a roaming number and the like. When there is an incoming call to a roaming mobile device in a mobile communication network connected to a visitor network at the roaming destination by a communication line, roaming destination information, mobile device information, resource information, etc. from a home location register in a home network. Based on the roaming destination network information, to secure the communication bandwidth, communication quality, and application software as service request characteristics on the signal line to the roaming destination exchange in the visitor network via the home network exchange of the terminating mobile device. In order to make a negotiation request between incoming and outgoing calls, a session call and A session signal is transmitted and received, and a session response signal is transmitted from the visitor exchange to the originating exchange to which the originating terminal belongs, regardless of whether the negotiation is normal or illegal, and thereafter, a communication line is set based on the negotiation result. A mobile communication call control method characterized by performing general call control for the purpose of: 3. A mobile station having a home location register for storing a mobile subscriber's authentication key, subscriber information, roaming number, roaming destination network information, and the like, and a mobile station having a visitor location register for storing roaming number and the like. In a mobile communication network in which a roaming destination visitor network is connected by a communication line, when a call originates from a mobile device in a roaming destination visitor network, communication resources and communication as service request characteristics between a calling mobile device and a receiving terminal. In order to negotiate between quality and application software, the session is controlled by sending and receiving session call / response signals, the result of the negotiation is notified to the originating exchange, and thereafter, communication based on the negotiation result is performed by the originating exchange. Performs general call control for the purpose of line setting,
If the negotiation is unsuccessful, notify the originating mobile device to that effect, and when there is an incoming call to the roaming mobile device, collect roaming destination information, mobile device information, resource information, etc. from the home location register in the home network. Then, based on the roaming destination network information, a signal line is sent to the roaming destination exchange in the visitor network via the home network exchange of the terminating mobile station, and the arrival and departure for securing the communication bandwidth, communication quality, and application software as service request characteristics In order to make a negotiation request between the originating terminal and the mobile station, session control is performed by sending and receiving a session call / response signal, and the result of the negotiation is transmitted from the visitor exchange to the originating terminal regardless of whether the negotiation is normal or illegal. Sends a session response signal to the local exchange, and thereafter performs general call control for the purpose of setting up a communication line based on the result of the negotiation. A mobile communication call control method. 4. A mobile device having a home network having a home location register for storing authentication keys, subscriber information, roaming numbers, roaming destination network information, etc. of a mobile subscriber, and a visitor location register for storing roaming numbers, etc. In a mobile communication network in which a visitor network at a roaming destination, a visitor network exchange, a home network exchange, the home location register, and the visitor location register are connected by communication lines, When a call is originated, a mobile station sends a session call signal to the originating exchange in the visitor network to negotiate between the originating and terminating communication resources, communication quality, and application software as service request characteristics between the originating mobile station and the terminal. And the called party number in the session call signal from the visitor exchange. Based on the above, a session call signal is sent to the destination exchange to which the called subscriber belongs, and a session call signal is sent from the destination exchange to the destination terminal, so that session control is performed by sending and receiving a session response signal. Then, the originating exchange is notified of the result of the negotiation, and thereafter, the originating exchange performs general call control for the purpose of setting up the communication line based on the result of the negotiation, and if the negotiation is not successful, the originating exchange moves to that effect. A mobile communication call control method, characterized in that a notification is made to a mobile device. 5. A mobile device having a home network having a home location register for storing an authentication key of a mobile subscriber, subscriber information, a roaming number, roaming destination network information, etc., and a visitor location register for storing a roaming number, etc. In a mobile communication network in which a visitor network at a roaming destination, a visitor network switch, a home network switch, the home location register, and the visitor location register are connected by a communication line, an incoming call to the roaming mobile device is received. When there is, the home network collects roaming destination information, mobile device information, resource information, etc. from the home location register, and based on the roaming destination network information, the roaming destination in the visitor network via the home network exchange of the destination mobile device. Communication bandwidth and communication products as service request characteristics on signal lines to exchanges In order to make a request for negotiation between sending and receiving to secure application software, session control is performed by sending and receiving a session call signal / session response signal between the calling terminal, the home side exchange, the destination exchange and the mobile station, and the negotiation is normal. Regardless of whether or not fraudulent, always send a session response signal from the visitor exchange to the originating exchange to which the originating terminal belongs, and then perform general call control for the purpose of setting up a communication line based on the negotiation result. Characteristic mobile communication call control method. 6. A mobile station having a home network having a home location register for storing authentication keys, subscriber information, roaming numbers, roaming destination network information and the like of mobile subscribers, and a mobile station having a visitor location register for storing roaming numbers and the like. In a mobile communication network in which a visitor network at a roaming destination, a visitor network exchange, a home network exchange, the home location register, and the visitor location register are connected by communication lines, When a call is originated, a mobile station sends a session call signal to the originating exchange in the visitor network to negotiate between the originating and terminating communication resources, communication quality, and application software as service request characteristics between the originating mobile station and the terminal. And the called party number in the session call signal from the visitor exchange. Based on the above, a session call signal is sent to the destination exchange to which the called subscriber belongs, and a session call signal is sent from the destination exchange to the destination terminal, so that session control is performed by sending and receiving a session response signal. Then, the originating exchange is notified of the result of the negotiation, and thereafter, the originating exchange performs general call control for the purpose of setting up the communication line based on the result of the negotiation, and if the negotiation is not successful, the originating exchange moves to that effect. When there is an incoming call to the roaming mobile device, the home network collects roaming destination information, mobile device information, resource information, etc. from the home location register, and based on the roaming destination network information, A signal line to the roaming destination exchange in the visitor network via the destination mobile's home network exchange, ensuring communication bandwidth, communication quality, and application software as service request characteristics In order to make a negotiation request between the originating terminal and the destination terminal, session control is performed between the originating terminal, the home-side exchange, the destination-side exchange, and the mobile station by transmitting / receiving a session call signal / session response signal, and the negotiation is normally or incorrectly performed. Mobile communication characterized by sending a session response signal from the visitor exchange to the originating exchange to which the originating terminal belongs, and thereafter performing general call control for setting a communication line based on the negotiation result. Call control method.