JPH036931A - Mobile communication tracing connection control system - Google Patents

Abstract

PURPOSE:To reduce the number of times of position registration attended with the movement of a mobile equipment by placing a simultaneous call request function or a call function to plural mobile communication exchange stations in a position registration area of a mobile equipment to a mobile communication relay exchange station. CONSTITUTION:Position registration is implemented when a mobile equipment 11 exists under the control of a radio base station 1, and an identification code of a position registration area 23 in which the mobile equipment 11 exists is registered to a home memory station 10. When the mobile equipment 11 moves under the control of a radio base station 3 included in a control area 22, since the mobile equipment 11 exists in the position registration area 23 at position registration, new position registration is not implemented. When an incoming call comes from other network to the mobile equipment 11, a mobile communication relay exchange station 7 sends a general calling instruction to mobile communication exchanges 5, 6 controlling control areas 21, 22 included in an in-zone position registration area 23 of the mobile equipment via a common line network 20 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tracking connection control method necessary for an incoming connection to a mobile device in a mobile communication network.

[Conventional technology]

A mobile communication system includes a mobile communication switching center that accommodates a plurality of wireless base stations having mutually independent radio zones via communication lines, a mobile communication relay switching center to which these mobile communication switching centers are connected, A mobile communication barrier switching center that has an interworking function with other networks and a home memo 177 access function that inquires about the location information of a destination mobile device when an incoming call is connected to a mobile device, and any of the plurality of wireless base stations mentioned above. Both stations are composed of mobile devices that can be connected via wireless lines.

Conventionally, a system configuration has been adopted in which the control area controlled by the mobile communications switching center includes one or more location registration areas.

FIG. 3 shows such a conventional mobile communication system, and a tracking connection control method for incoming calls to a mobile device will be explained. FIG. 4 shows the trace connection sequence of the conventional system.

Mobile 8!11 is the wireless base station 1 under the mobile communication switching center 5
When mobile 8!11 registers the identification load of the location registration area 24 in which mobile 8!11 is located while residing in a zone controlled by radio base station 2, and then moves to a zone controlled by radio base station 2. think of. At this time, if there is an incoming call connection request from another network to the mobile device 11, the mobile communication barrier switching center 9 retrieves the location registration area 24 of the mobile Ia 11 from the home memory station 10 via the common line network 20. The identifying information is obtained, and the routing number to the corresponding mobile communication switching center 5 is obtained from the information.

Using this routing number, the mobile communication switching center 5 sets up a line from the mobile communication barrier switching center 9 to the mobile communication switching center 5 via the mobile communication relay switching center 7. Move fil by making the call
Makes an incoming call connection to l.

That is, the incoming call connection is performed in accordance with the procedure shown in FIG.

[Problem to be solved by the invention]

In the conventional tracking connection control system, one mobile communication switching center is configured to control as many as 1* location registration areas. When the traffic on the mobile network increases due to the increase in the number of subscribers, it is necessary to narrow the control area of the mobile communication switching center and install more mobile communication switching centers. If this is done, the location registration area will become narrower and location registration traffic will increase rapidly.

An object of the present invention is to reduce the number of location registrations by not narrowing the paging area even if the area controlled by the mobile communications switching center is narrowed due to an increase in traffic. The object of the present invention is to provide a tracking connection control method that allows incoming call connections to mobile devices located in the area.

[Means to solve the problem]

According to the invention, the above objects are achieved by the means specified in the claims.

That is, the present invention provides SaWs scattered within a wireless zone formed so as to be adjacent to each other, a wireless base station forming the wireless zone, and a mobile communication system connected to the wireless base station to perform call control of mobile devices. A mobile communication relay that has a switching center, a location registration area consisting of multiple wireless zones, and a routing function to multiple mobile communication switching centers that control multiple mobile devices within one* or multiple location registration areas. Constantly stores subscriber information including the switching center and the routing number to the mobile communications relay switching center or the routing number to the mobile communications switching center where the mobile device was located at the time of location registration, the location registration area of the mobile device, etc. In a mobile communication network consisting of a home memory station for incoming calls to a mobile device, and a switching center that has the ability to access the home memory station for inquiring about the location information of a science machine, etc., which is necessary when connecting an incoming call to a mobile device, The communication relay switching center is equipped with a tH function that allows simultaneous calling to wireless zones controlled by multiple mobile communication switching centers within the location registration area, and N@ from other networks or from other mobile devices within the mobile communication network.
When there is an incoming call connection request to a mobile device, the switching center or originating mobile communications switching center obtains subscriber information such as the routing number, location registration area information, and incoming translated language from the home memory station, and When a relay connection is made to a mobile communications relay switching center, a notification is sent to Tora, and the mobile communications relay switching center makes a call to multiple mobile communications switching centers within the location registration area, and as a result, the destination mobile device This is a mobile communication tracking connection control system in which a line is set up from the mobile communication relay switching center to the mobile communication switching center by obtaining the routing number to the mobile communication exchange E6 in which the mobile communication switching center is located.

[Made by eyebrows]

In the tracking connection for an incoming call to a mobile device, the present invention provides:
The mobile communication relay switching center that connects the line to the mobile communication switching center in which the mobile device was located at the time of location registration is requested to make a simultaneous call request 81 function or paging function to multiple mobile communication switching centers within the location registration area of the mobile device. By placing the M
It has a special feature in the way it connects.

In other words, by realizing trace connection when multiple mobile communication switching centers exist in the same location registration area, the location registration area can be enlarged independently of the control area of the mobile communication switching center. This makes it possible to reduce the number of location registrations required as the mobile device moves.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing concern #I of a mobile communication system according to an embodiment of the present invention.

Here, it is assumed that the mobile communication relay switching center has the function of performing simultaneous paging. The relay exchange issues a paging request to that node and receives the result.

In addition, it is assumed that the mobile communications barrier switching center, which has an interworking function with other networks, has the function of inquiring the home memory station for information such as the location of the scientific vehicle in the case of incoming calls from other networks. , a configuration may be adopted in which a switching center of another network has this function.

The wireless base station 1 is connected to the line 16, and the wireless base station 2 is connected to the line 16.
The wireless base station 3 is accommodated in the mobile communications switching center 5 via the line 117, and the wireless base station 3 is accommodated in the mobile communications switching center 6 via the line 19. It has been g.

These mobile communication switching centers 5, 6 each have a line 14.
The mobile communication relay exchange 7 is connected to the mobile communication relay exchange 7 through the line 15, and the mobile communication relay exchange 7 is connected to the mobile communication gateway exchange 9 through the line 12, and to other mobile communication relay exchanges through the line 13. It is also connected to station 8.

Additionally, there is a mobile communication gateway switching center 9, a home memory station 10 that constantly stores subscriber information of mobile devices, and a mobile communication relay switching center 7.
, mobile communication switching centers 5 and 6 are each connected to a common line network 20.

Furthermore, the location registration area 23 includes a mobile communications switching center control zone (also simply referred to as a "control area") 21 that accommodates the wireless base station 1.2 and is controlled by the mobile communications switching center 5, and a wireless base station 3°. 4 and is controlled by a mobile communication switching center 6.

Next, the tracking connection operation of this embodiment will be explained.

FIG. 2 shows a trace connection sequence diagram of this embodiment.

When the mobile device 11 is under the control of the wireless base station 1, the location registration is not performed, and the identification code of the location registration area 23 where the mobile device 11 is located and the wireless base station 1 are transferred to the home memory station 10 through mobile communications exchange. It is assumed that the routing number to the mobile communication relay switching center 7 accommodated through the station 5 or the routing number to the mobile communication switching center 5 is registered. After this, move 8
! Consider a case where the wireless base station 11 moves to the control area of the wireless base station 3 that is included in the control area 22. In this case, since the mobile device 11 is located in the location registration area 23 at the time of location registration, no new location registration is performed.

In this state, if mobile 8!11 receives a call from another network, mobile communication barrier switching center 9, which acts as a barrier to other networks,
obtains mobile fill subscriber information from the home memory station 10 via the common #l network 20.

The mobile communications gateway exchange 9 is a mobile Ij! The line 2 to the mobile communication switching center 7 is set using the routing number to the mobile communication switching center 7 or the routing number to the mobile communication switching center 5 included in the subscriber information of 11.

At the mobile communication relay switching center 7, the routing number is for the mobile communication relay switching center 7, or the routing number is for the mobile communication relay switching center 7.
The translator identifies whether the message is to the mobile communication switching center under the control center or the mobile communication relay switching center 8 by doing a[, and it is determined that it is the former case by i! Understand.

Furthermore, the mobile communication relay switching center 7 issues a paging instruction to the mobile communication switching centers 5 and 6 that control the control areas 21 and 22 included in the location registration area 23 of the mobile device via the common line network 20, respectively. Send.

The mobile communication switching center 5.6 performs a simultaneous paging to the mobile terminals via all the radio base stations under its control, and calls the mobile terminal 8111.
recognizes that it is located under the wireless base station 3, and sends the routing number to the mobile communication switching center 6 to the mobile communication relay switching center 7 via the common llA1A 20, and at the same time sends the routing number to the mobile communication switching center 6 to the mobile communication relay switching center 7, The #ka operation between the mobile device 11 and the mobile communication switching center 6, including setting up a wireless link between the mobile station 11 and the mobile communication switching center 6, is performed.

The mobile communication relay switching center 7 uses the obtained routing number to the mobile communication switching center 6 to set up a line to the mobile communication switching center 6.

Through the above operations, an incoming call is connected to the mobile device.

〔Effect of the invention〕

As explained above, the present invention provides a simultaneous paging If1 function, which is necessary when connecting an incoming call to a mobile device, to a mobile communication relay switching center to which a plurality of mobile communication switching centers accommodating a plurality of radio base stations are connected. As a result, when there are multiple mobile communication switching centers within the location registration area that is the unit of simultaneous paging, it is possible to determine the mobile device position 1 for incoming call connection to the mobile device, and the mobile communication switching center Even if the control area is narrowed to increase traffic density, the effect of reducing the number of location registrations can be obtained.

In addition, in the case of a call originating from another mobile device within the mobile communication network, the mobile communications switching center that accommodates the calling mobile device via a radio base station receives calls from the home memory station of the destination mobile device. Similar effects can be obtained by having the same function as the above-mentioned mobile communication gateway switching center of obtaining subscriber information.

Furthermore, the same effect can be obtained by placing the paging function in another management node and making only the paging request/response from the exchange.

In addition, mobile communication gateway switching centers and mobile communication relay switching centers are
Even if it is not unique to mobile communications, the same effect can be obtained even if the fixed network switching center has the same function.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of a communication system according to an embodiment of the present invention, FIG. 2 is a diagram showing a trace connection sequence of a communication system according to an embodiment of the present invention, and FIG. 3 is a diagram showing a communication system according to a conventional example. Figure 4 shows the configuration of the conventional i'1M system'
f) A diagram illustrating a trace connection sequence. 1.2 3 4 ... Wireless base station, 5
6...Mobile communications switching center, 7.8...
・・・Mobile communications relay switching center, 9 ・・・・・・
Mobile communications gateway exchange, 10...
Home memory station, 11...Mobile device, 12-19...Line, 20
・・・・・・Common line network, 21, 22.26
...Mobile communications switching center control zone, 23
, 245 Location registration area

Claims (1)

[Claims] Mobile devices scattered within a wireless zone formed so as to be adjacent to each other, and a wireless base station forming the wireless zone;
A mobile communication switching center connected to the wireless base station and controlling calls of mobile devices, a location registration area composed of a plurality of wireless zones, and a plurality of mobile devices within the one or more location registration areas. A mobile communication relay switching center that has a routing function to multiple mobile communication switching centers, and a routing number for the mobile communication relay switching center or the location of the mobile device at the time of location registration.
A home memory station that constantly stores subscriber information, including the routing number to the mobile communications exchange that was previously used, the location registration area of the mobile device, etc., and the location information of the destination mobile device that is required when connecting an incoming call to the mobile device. In a mobile communication network consisting of a switching center that has an access function to a home memory station to inquire about When equipped with a function for simultaneous paging, when there is an incoming call connection request from another network or from another mobile device within the mobile communication network to the destination mobile device, the switching center or originating mobile communication switching center Obtains subscriber information such as routing number, location registration area information, and incoming translated words from the memory station, relays the connection to the corresponding mobile communications relay exchange, and transfers the information, and the mobile communications relay exchange performs location registration. By making a simultaneous call to multiple mobile communications switching centers in the area and obtaining the routing number to the mobile communications switching center where the destination mobile device is located, the mobile communications A mobile communication tracking connection control method characterized by setting up a line to a switching center.