KR100242701B1 - Method for disposing of conference calling - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing conference calls suitable for improving a procedure for requesting information to a visited subscriber location register when processing a conference call in a GSM mobile communication system. The information is retrieved. The procedure is performed by retrieving the subscriber's information from an internal subscriber location register or an external home location register to determine whether the personal communication subscriber to which the call is connected is a subscriber of the conference call request. Although it is complicated and takes a long time to search for information, the present invention omits the procedure of storing the additional service-related information in a call controller and querying the visited subscriber location register when a subscriber requests an incoming call. It can be improved.

Description

How to handle conference calls

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conference call processing method, and more particularly, to a conference call processing method which improves a procedure for requesting information to a visited subscriber location register when processing a conference call in a European mobile communication system (GSM) exchange.

In the prior art, the subscriber's information was retrieved to connect the call. At this time, the personal communication exchange is complicated by the procedure of connecting the call by retrieving the subscriber's information from the internal subscriber location register or the home location register located outside to determine whether the personal communication subscriber connected to the call is a subscriber of the conference call request. There was a drawback that it takes a long time to search for information.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and an object of the present invention is to improve a procedure of querying a visited subscriber location register by transmitting additional service related information to a call controller when a subscriber requests an incoming call.

In order to achieve the above object, the present invention provides a base station for wirelessly connecting to a corresponding wireless communication subscriber, a base station controller for controlling a connection of a call by controlling the base station, and transmitting / receiving and transmitting / receiving a call from the base station controller. And a personal communication switch for connecting a call, wherein the personal communication switch comprises: a base station controller matching unit for converting a signal from the base station controller into a signal usable in the personal communication exchange, and a signal to the base station controller matching unit. A call controller for controlling transmission / reception, a conference call processing unit for processing information of a subscriber subscribed to a conference call among additional services in the personal communication switch, and controlling information of subscribers in a predetermined area under the control of the call controller; In the personal communication system consisting of a visited subscriber management unit, If the particle determines that the call service is available by calling the call service, the base station controller transmits a setup message to the call control unit through the base station controller matching unit again, and the call control unit receives the setup message and moves to the visited subscriber location register. In the first transmission step of transmitting the transmission information, the visited subscriber location register receives the mobile application transmission information and includes additional service information (including conference call information) necessary for the subscriber through the received mobile application transmission information. In a second transmission step of transmitting completion information to the call control unit, the call control unit having received the mobile application call completion information stores mobile application call completion information, and transmits a call progress command to the base station controller matching unit and the base station controller so that the corresponding call is entered. Allowing progress, currently in progress from subscriber during call progress When the conference call request message to hold the call is received, sending a conference call request message to the call control unit, the call control unit receives the conference call request message and the subscriber in the mobile application call completion information stored in the second transmission step; Determining whether the conference call service is registered, and if the determination result is registered in the conference call service, reporting the conference call start to the conference call processing unit; When the authentication message for the start report falls, it provides a conference call processing method comprising the step of transmitting the conference call service authentication message to the base station controller matching unit, the base station controller, the base station to start the conference call service.

1 is a block diagram of a GSM mobile communication system suitable for explaining a conference call processing method according to the present invention;

2 is a flow chart illustrating a conference call processing method in accordance with a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

110: base station 120: base station controller

130: personal communication exchange 140: base station controller matching unit

180: call control unit 160: conference call processing unit

170: Visiting subscriber location register

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 by those skilled in the art.

Referring to the configuration of the mobile communication system in the personal communication exchange of the present invention, a base station 110 for wireless connection with the corresponding wireless communication subscriber, a base station controller 120 for controlling the connection of the call by controlling the base station 110, And a personal communication exchange 130 for transmitting / receiving a call from the base station controller 120 and connecting the transmitted / received call. The personal communication exchange 130 includes the base station controller 120. A base station controller matching unit 140 for converting a signal from the base station controller into a signal usable by the personal communication switch 130, a call controller 150 for controlling signal transmission / reception to the base station controller matching unit 140, and The conference call processing unit 160 which processes the information of the subscriber subscribed to the conference call among the additional services in the personal communication exchange 130, and the subscribers of the subscribers in the predetermined area under the control of the call controller 150 It consists of a personal communication system consisting of a visited subscriber management unit 170 for managing information.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention.

Referring to FIG. 1, the base station 110 wirelessly connects with a personal communication subscriber of a corresponding area, manages subscribers in an area controlled by the base station 110, connects a call, and connects a call to the subscribers belonging to the base station 110. Manage your location. Radio signal transmission and reception with a subscriber, system synchronization, radio encoding and decoding, signal strength and quality measurement, baseband signal processing, diversity, and radio resource management are performed.

The base station controller 120 is a device that performs functions such as matching with the base station 110, inter-cell handoff processing, call control, and the like. The base station controller 120 is connected to the exchanger through an internal interface of the switch or NO. 120 controls a plurality of base stations (110, ...). The base station controller 120 controls each base station 110, ..., and wirelessly receives a signal from the base station 110, ..., and controls the processing of the received signal and is connected to the personal mobile communication exchange. .

The personal communication exchange 130 is connected to a plurality of base station controllers 120, ..., and wires data received from the plurality of base stations 110, ... through the base station controllers 130, ... by wire. It connects to the exchange and, in the case of its own call, connects the call by switching in the own station.

The base station controller matching unit 140 in the personal mobile switching center 130 serves to convert a signal from the base station controller 130 into a signal usable in the personal communication switching unit 130.

The call controller 150 in the personal communication exchange 130 is responsible for mobile call processing and other call progress related processing.

The call controller 150 is connected to the visited subscriber location register 170 to process incoming or outgoing subscriber information.

The conference call processing unit 160 receives information such as conference call registration status and conference call active state by receiving conference call information processed by the call controller 150 in relation to the conference call as a service block in the personal communication exchange 130. Process the received information.

The visited subscriber location register 170 in the personal communication exchange 130 is located in the mobile communication exchange 130 and, under the control of the call control unit 150, when the mobile station enters into the management area right in the mobile communication exchange 130, the mobile station. Information received from the home location register (HLR, not shown) is retained until the mobile station leaves the management area.

Referring to Figure 2 with respect to the conference call processing method of the present invention, when the subscriber requests the call service, the base station 110 receives the call service request signal and transmits the call service request signal to the base station controller 120 ( Step 202).

The base station controller 120 receives the call service request signal to the base station controller matching unit 140 and the base station controller matching unit 140 receives the call service request signal to the call control unit 150 (step) 204).

When the call control unit 150 visits the subscriber location register 170, the mobile application part process access request, the visit subscriber location register 170 searches for the subscriber's information and sends the searched information to the call control unit 150. Transmit (step 206).

The call controller 150 receives the subscriber's search information received from the visited subscriber location register 170 to determine whether the call service is possible (step 208).

If it is determined in step 208 that the service is not available, a tone or message indicating that the subscriber is not in service is transmitted (step 210).

If it is determined in step 208 that the service is possible, the base station controller 120 informs that the service is available (step 212).

The serviceable call surface, the base station controller 120 again transmits a setup message to the call control unit 150 via the base station controller matching unit 140 (step 214).

When the call controller 150 receives the Setup message, it transmits the mobile application transmission information to the visited subscriber location register 170 (step 216).

The visited subscriber location register 170 receives the mobile application transmission information, and through the received mobile application transmission information, additional service information (including conference call information) required for the subscriber, subscriber and called party number verification information, and closed user group (Closed). Mobile application call completion information containing User Group) information is transmitted to the call control unit 150 (step 218).

The call control unit 150 having received the mobile application call completion information stores the mobile application call completion information and transmits a call progress command to the base station controller matching unit 140 and the base station controller 120 (step 220).

The base station controller 120 receives the received call progress command, connects the corresponding subscribers through the base station, and connects the call (step 222).

If the conference call request message is received from the subscriber to hold the ongoing call, the conference call request message is transmitted to the call controller 150 through the base station 110, the base station controller 120, and the base station controller matching unit 140. Transmit (step 224).

The call controller 150 receives the conference call request message and determines whether the conference call service is registered by the subscriber from the mobile application call completion information stored in the above-described step (step 226).

If the conference call service is not registered as a result of the determination in step 226, an error message is transmitted to the subscriber (step 228).

The call controller 150 determines in step 226 whether the conference call service is registered, and if it is registered in the conference call service, the call controller 150 reports the conference call start to the conference call processor 160 (step 230).

When the authentication message for the start report falls from the conference call processor 160, the conference call service authentication message is transmitted to the base station controller matching unit 140, the base station controller 120, and the base station 110 to start the conference call service ( Step 232).

As described above, the present invention can omit the procedure of storing the additional service related information in the call control unit and querying the visited subscriber location register in advance when the subscriber requests the incoming call, thereby simplifying the procedure and making a quick conference call to the subscriber. The purpose is to provide a service method.

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.

Claims (1)

A base station 110 for wirelessly connecting with the wireless communication subscriber; A base station controller (120) for controlling the connection of the call by controlling the base station (110); It comprises a personal communication exchange 130 for transmitting and receiving a call from the base station controller 120, and connects the transmitted / received call, The personal communication exchange 130 is: A base station controller matching unit (140) for converting a signal from the base station controller (120) into a signal usable in a personal communication exchange (130); A call controller 150 for controlling signal transmission / reception to the base station controller matching unit 140; A conference call processing unit (160) for processing information of subscribers subscribed to conference calls among additional services in the personal communication exchange (130); In the personal communication system comprising a visited subscriber management unit 170 for managing the information of subscribers in a certain area under the control of the call control unit 150, When the subscriber requests the call service and determines that the call service is possible, the base station controller 120 transmits a setup message to the call controller 150 through the base station controller matching unit 140 again, and the call controller 150 sets up the call (150). A first transmitting step of receiving a Setup) message and transmitting mobile application transmission information to a visited subscriber location register; The visited subscriber location register 170 receives the mobile application transmission information, and receives the mobile application call completion information including additional service information (including conference call information) required for the subscriber through the received mobile application transmission information. A second transmission step of transmitting at); The call controller 150 receiving the mobile application call completion information stores mobile application call completion information and transmits a call progress command to the base station controller matching unit 140 and the base station controller 120 so that the corresponding call proceeds. ; Transmitting a conference call request message to the call controller 150 when a conference call request message is received from the subscriber to hold a call currently in progress while the call is in progress; Receiving a conference call request message and determining whether the corresponding subscriber is registered in a conference call service from the mobile application call completion information stored in the second transmission step; The call controller 150 determines whether the conference call service is registered, and if the result of the determination is registered in the conference call service, reporting the conference call to the conference call processor 160; If the authentication message for the start report is dropped from the conference call processing unit 160, transmitting the conference call service authentication message to the base station controller matching unit 140, the base station controller 120, the base station 110 to start the conference call service Conference call processing method, characterized in that consisting of.

Images