KR100258242B1 - Wide Area Centrix Service Apparatus and Method in Mobile Communication Switching System - Google Patents

Abstract

PURPOSE: A broad centrix service and a method in a mobile communication exchange system is provided to offer a broad centrix service variously by adding a number translation function to a home location register of the mobile communication exchange system. CONSTITUTION: A home location register decides whether a number of an out-going subscriber is registered at a broad centrix service or not(step206). When the number of an out-going subscriber is registered at a broad centrix service, the home location register transmits a transmission information to a centrix number translation part(step208). The centrix number translation part decides whether there is an information of a transmission information at a database or not(step210). When there is the information of the transmission information at the database, the centrix number translation part adds a general directory number to a centrix extension number of an in-coming subscriber, and translates the in-coming number to a number of which a call is able to be connected(step214). The home location register receives the in-coming number including the general directory number, and searches a pertinent centrix group and the in-coming subscriber pertinent to the centrix group, and transmits a location information of the in-coming subscriber to the first mobile exchange(step216), and reports a fact that a call in-coming request is received to the second mobile communication exchange including the in-coming subscriber, and connects a call between the out-going subscriber and the in-coming subscriber(step218).

Description

Wide Area Centrix Service Apparatus and Method in Mobile Communication Switching System

The present invention relates to a wide area centrix service method in a mobile communication switching system. More particularly, the present invention relates to a wide area centrix service method in a mobile communication switching system. It relates to a wide area Centrix service method.

In the mobile communication network of the prior art, the Centrix function does not exist, and in the wired local exchange used in the general telephone network, the Centrix function is performed only within the same exchange, so both the wired and the wireless should receive the limited service of the Centrix. There is a drawback to losing utility.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and by adding a dedicated network and an extension dial function currently used in a private exchange network to a local mobile communication exchange, the central exchange controls the central function in the mobile communication exchange. It is an object of the present invention to provide a wide area centric service method in a mobile communication switching system providing centric functions in all areas.

In order to achieve the above object, the present invention provides a plurality of personal mobile communication exchanges that transmit / receive a call from a preset base station controller and connect an originating subscriber who has attempted a call transmitted by a mobile communication subscriber with a corresponding called subscriber. A home location register connected to a plurality of mobile communication exchangers and storing and managing subscriber parameters and location information of all terminals registered in an area controlled by the plurality of mobile communication exchanges; In the mobile communication switching system, when the recipient subscriber number is transmitted to the number translation unit, the received subscriber number is retrieved from the internal database and the representative number translation unit is transmitted to the home location register along with the extension number. Providing Devices and Methods for Wide Area Centrix Services .

1 is a block diagram of a mobile communication switching system suitable for wide area centric services according to the present invention;

2 is a flow chart illustrating the steps of a wide area centric service in a mobile communication switching system according to the present invention;

<Description of the code | symbol about the principal part of drawing>

1st, 2nd, 3rd Centrix Subscriber Group: 102, ..., 104, ..., 106, ...

112, 114, ..., 116: first, second, third mobile communication exchange

120: Home Location Register 122: Centrix Number Translator

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings.

The configuration of the present invention is composed of a plurality of mobile subscribers, each centric subscriber group 102, ..., 104, ..., 106, ... which is a mobile subscriber group that is grouped to receive group services. .) And a plurality of personal mobile switching centers 112 for transmitting / receiving a call from a preset base station controller (not shown) and for connecting the originating subscriber who attempted the call transmitted by the mobile communication subscriber and the called subscriber. , 114, ..., 116 and a plurality of mobile communication exchanges (112, 114, ..., 116) connected to the area controlled by the plurality of mobile communication exchange (112, 114, ..., 116) Home location register 120 for storing and managing subscriber parameters and location information for all terminals registered therein, and if the home location register 120 determines that the subscriber information is Centrix, when the subscriber number is transmitted, the received information is received. Search in internal database W is the key number with the extension number comprises a number cent Riggs translation unit 122 for transmitting to the home location register (120).

First, referring to FIG. 1, a block diagram of a mobile communication switching system suitable for a wide area centric service will be described in detail. Each centric subscriber group 102, ..., 104, ..., 106 , ...) is a group of a plurality of mobile communication subscribers, each of which combines the subscribers into a single bundle. For example, if the same group is a Centrix subscriber by inputting only the extension number of the subscriber, Receive services such as making a call connect.

For example, the first mobile switch 112 accommodates a number of groups other than the first centric subscriber group 102, and likewise, the second mobile switch 114 has a group other than the second mobile subscriber group 104. Accommodating a plurality of groups, and the n-th mobile switching center 116 accommodates a number of groups other than the n-th mobile subscriber group 106, but managing each of them with the central information is a home location register. Since 120 and the CENTRIC number translation unit 122 connected to the home location register 120, CENTRIX service is possible regardless of the mobile communication exchange to which the CENTRIC subscriber group belongs.

Each of the mobile switching centers 112, 114, ..., 116 is connected to a plurality of base station controllers controlled by the corresponding mobile switching center, and calls from the base station controller through the corresponding base station (not shown) from the subscriber. A call is connected to another exchange and its subscribers by switching operation.

Further, the plurality of mobile communication exchanges 112, 114, ..., 116 are connected to the home location register 120 to determine whether the call is received from a call originating subscriber in the area controlled by the mobile communication exchange. If the call was received from a call originating subscriber, contact the home location registrar 120 for the location of the call recipient and find the call center and call the call with the call center. It connects the subscriber with the telephone line.

If it is determined that the input number is an extension number input (generally four digits) by checking the number of digits of a general centrix number, the mobile subscriber station determines that the subscriber is a subscriber. It is determined that the call connection request between the Centrix number translation unit 122 to perform the number translation.

The base station controller then controls a plurality of base stations.

The home location register 120 is connected to a plurality of wireless communication exchanges 112, 114,... 116 to provide subscription information of mobile subscribers and service information of other wireless subscribers, for example, registered subscribers. It serves as a database containing subscriber information such as subscriber number and additional service information.

The home location register 120 determines whether the calling subscriber and the called subscriber are subscribers in the same centric group based on the calling information received by receiving the calling information of the centrix subscriber in the corresponding mobile communication exchange to which the calling subscriber belongs. do.

When it is determined that the home location register 120 is a call connection request between the same CENTRIC subscribers, the CENTRIC number translation unit 122 transmits the called subscriber number to the CENTRIC number translation unit 122 and transmits the received information. Search in the database.

In addition, the centrix number translation unit 122 transmits the representative number together with the extension number information to the home location register 120 so that the home location register 120 finds the location of the called party. Inform the corresponding mobile communication exchange that an incoming call request has been received.

Since the mobile communication exchange with the called party and the mobile communication exchange with the calling party that is notified that the call request has been received is connected to the communication network, the call is opened by opening a call path between the called party and the calling party.

Referring to FIG. 2, the steps of serving a wide area centrix service in a mobile communication switching system are as follows: an originating subscriber is under an area controlled by a first mobile switching center, and a called party is located in an area controlled by a second mobile switching center. It is assumed and explained.

The calling subscriber in the same centric group is requested to connect to the called subscriber by inputting the recipient's centric extension number to the first mobile switching center 112 to which the current subscriber belongs (step 202).

The first mobile communication switch 112 to which the calling subscriber in the same centric group belongs belongs to the home location register 120 to transmit calling information including the subscriber number of the called subscriber and the calling subscriber's number to request authentication information. (Step 204).

The home location register 120 determines whether the calling party's number is a subscriber registered with the wide area centric service in the mobile communication switching system (step 206).

If it is determined in step 206 that the calling subscriber's number is not a subscriber registered in the wide area centric services in the mobile communication switching system, an error message is sent to the calling subscriber to inform the calling subscriber that the corresponding service is impossible (step S206). 212).

If it is determined in step 206 that the calling subscriber's number is a subscriber registered in the wide area centric service in the mobile communication switching system, the home location register 120 transmits the calling information to the centric number translation unit 122 ( Step 208).

The centrix number translator 122 determines whether the called number is a Centrix subscriber number among the received call information (step 210).

That is, it is determined whether or not the information of the called subscriber exists in the database in the centrix number translation unit 122.

If it is determined in step 210 that the called number does not exist in the database in the centrix number translation unit 122, an error message is sent to the calling subscriber through the corresponding first mobile switching center 112 and the corresponding service is impossible. Notify the calling subscriber (step 212).

If the called number is determined in step 210 in the database in the CENTRIC number translation unit 122, the representative number is added to the CENTRIC extension number of the called subscriber, the number is translated into a call connectable number, and the home location register Transmit to 120 (step 214).

The home location register 120 receives the corresponding destination number to which the census number is added to the received representative number to find the corresponding centric group and the subscriber to which the called party belongs, and the first mobile communication switch 112 to which the corresponding calling party belongs. In step 216, information including the location information of the called subscriber is transmitted.

The second mobile communication switch 112 to which the called party belongs is notified that a call incoming request has been received so that the call is connected between the calling party and the called party (step 218).

As an example of the above-described step as a subscriber group belonging to the first centrix group 102, the calling subscriber is in an area controlled by the second mobile communication switch 114, and the called subscriber is an nth mobile communication switch. It is assumed that 116 is in an area to be controlled.

When the subscriber of the CENTRICS group whose representative number is 252 dials "5700", the second mobile communication exchange 114 which has received the outgoing information sends the caller's information and the called number "5700" to the home location register 120. You will be notified.

Then, since the home location register 120 receives only 4 digits of 5700, the caller is a member of the Centrix group in the information database of the calling subscriber found by searching, and 1 or 9 (in the case of an external code, 9+ the corresponding external number). Since a special code such as) is not entered at the first digit, the representative number is added, and the n-th mobile communication switch 116 having the corresponding subscriber is found to connect the call with the subscriber "252-5700".

The principles of the invention have been described above in connection with specific devices, which are described by way of example only, and are not limited to the spirit of the invention as described in the appended claims.

As described above, according to the present invention, by adding the number translation capability to the home location register of the mobile telecommunication switching network, subscribers can call subscribers in the same group using only their extension numbers, and group them into groups like subscribers in other regions. It can be used like a dedicated network without having to build a dedicated network.In addition, it can use both the specificity and mobility of mobile communication, and can use all the Centrix functions of a wired network. It can also be used and solves the problem of handover that may occur in the case of wireless private.

Claims (2)

A plurality of personal mobile switching centers 112, 114, ..., 116 for transmitting / receiving a call from a preset base station controller and connecting an originating subscriber who has attempted a call transmitted by a mobile communication subscriber with a corresponding called party. ; Subscriber parameters for all terminals connected to the plurality of mobile communication switches 112, 114, ..., 116 and registered in the area controlled by the plurality of mobile communication switches 112, 114, ..., 116. A home location register 120 for storing and managing location information; If it is determined that the information is the Centrix subscriber information, when the incoming subscriber number is transmitted to the Centrix number translation unit 122, the received location information is retrieved from the internal database and the corresponding representative number along with the extension number is the home location register 120. A wide area centric service apparatus in a mobile communication switching system, comprising: a transcript number translation unit (122) for transmitting to a mobile station. Subscribers to all terminals registered in the area controlled by the plurality of mobile communication exchanges 112, 114, ..., 116 connected to a plurality of preset mobile communication exchanges 112, 114, ..., 116 A home location register 120 for storing and managing parameters and location information; If it is determined that the information is the Centrix subscriber information, when the incoming subscriber number is transmitted to the Centrix number translation unit 122, the received location information is retrieved from the internal database and the corresponding representative number along with the extension number is the home location register 120. In the wide area centric service system of the mobile communication switching system, characterized in that it comprises a centric number translation unit 122 for transmitting to Requesting a call connection with the called subscriber by inputting only the recipient's extension number of the called subscriber to the mobile communication switch () to which the calling subscriber in the same centric group belongs; Requesting authentication information by transmitting the calling information from the mobile communication switch to which the calling subscriber in the same centric group belongs, to the home location register 120; At home location register (120), a first determining step of determining whether the calling party's number is a subscriber registered with a wide area centric service in a mobile communication switching system; If the number of the calling subscriber is determined in the first determination step and the subscriber is a registered subscriber to the wide-area centric service in the mobile communication switching system, transmitting the calling information to the centric number translation unit 122; A second determination step of determining whether the called number is a Centrix subscriber number among the received outgoing information; If the called number is determined in the second determination step and the called number exists in the database in the CENTRIC number translation unit 122, the representative number is added to the CENTRIC extension number of the called subscriber and transmitted to the home location register 120. step; The home location register (120) comprises the step of receiving a corresponding destination number with the census number added to the received representative number to allow a call to be connected between the calling party and the called party.

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