KR100242702B1 - Method for disposing of call hold and conference calling - Google Patents

Abstract

The present invention relates to a method for handling call hold and conference call, which is suitable for improving a procedure for requesting information to a visited subscriber location register () in handling a call hold and conference call in a European mobile communication system (GSM) exchange. In this case, call hold and conference call are similar to each other, and one subscriber is registered in both services. However, the procedure is complicated, and there is a drawback in that it takes a long time to retrieve the information due to the dual processing. If you determine that you are subscribed to the call service at the same time By providing the current service and the conference call service at the same time, it is possible to alleviate the above-mentioned drawbacks by providing a method suitable for the subscriber to simplify the application procedure of the additional service and to provide the convenient call hold service and the conference call service to the subscriber.

Description

How to handle call hold and conference calls

The present invention relates to a method for handling call hold and conference call, and more particularly, to call hold and conference call processing, which improves a procedure for requesting information to a visited subscriber location register when handling call hold and conference call in a European mobile communication system (GSM) exchange. It is about a method.

In the prior art, the subscriber's information was retrieved to connect the call. At this time, the personal communication switch connected 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 call pending request subscriber.

Call hold and conference call are similar, but if one subscriber is registered for both services, and he applies for call hold, he cannot retrieve it and only wants to receive the two services because he only did one call pending service. The procedure is complicated, and due to the double drooping, the information retrieval takes a lot of time.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and when a subscriber requests an incoming call, the additional service-related information is transmitted to the call control unit to provide a conference call service when a call is pending. The purpose is to provide.

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 call hold and conference call processing unit for processing information of subscribers subscribed to call hold and conference call among additional services in the personal communication exchange, and a call control unit within a predetermined area under the control of the call controller Personal communication consisting of visiting subscriber management department which manages subscriber's information In the new system, when the subscriber requests the call service and determines that the call service is possible, the base station controller transmits the setup message to the call controller through the base station controller matching unit again, and the call controller receives the setup message to receive the visited subscriber. In the first transmission step of transmitting mobile application transmission information to the location register, the visited subscriber location register receives the mobile application transmission information, and through the received mobile application transmission information, additional service information necessary for the subscriber (call hold and conference call information). And a second transmitting step of transmitting the mobile application call completion information to the call controller, wherein the call controller receiving the mobile application call completion information stores the mobile application call completion information, and transmits the mobile application call completion information to the base station controller matching unit and the base station controller. Sending a call progress command to cause the call to proceed; A first decision step of determining whether the subscriber is registered in the call hold service from the mobile application call completion information received in the second transmission step by receiving a call hold request message to hold an ongoing call from the subscriber If the determination result in step 2 is registered in the call holding service, the second determination step of judging whether or not the mobile application call completion information is registered in the conference call service, and if only the call holding service is registered as a result of determination in the second determination step, If the call holding service is executed, and the determination result of the call control unit 150 determines that the call holding service is registered in both the call holding service and the conference call service, the call holding service and the conference call processing unit 160 call the call holding service and the conference call. The start reporting of the service, the call hold and the authentication message for the start reporting from the conference call processor 160. Land drops, and provides a call hold service and conference call service the call authentication message, characterized in that which comprises a step of initiating a call on hold by transmitting service, and a conference call service to a base station 110 on hold and conference calls are handled.

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

2 is a flow chart illustrating a method for handling call hold and conference call 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: call hold and 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 call hold and conference call processing unit 160 for processing information on subscribers subscribed to call hold and conference call among the additional services in the personal communication exchange 130 and the call control unit 150 under the control of the schedule It consists of a personal communication system composed of a visited subscriber management unit 170 for managing information of subscribers in the area.

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 call hold and conference call processing unit 160 receives the call hold and conference call information processed by the call control unit 150 in relation to the call hold and conference call with the service block in the personal communication exchange 130, and then holds the call and conference call. Receives and processes information such as registration status and call hold and conference call activity.

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 call hold and 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 control unit () (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 call holding and conference call information) required for the subscriber, subscriber and called party number verification information, and a closed user. The mobile application call completion information containing the closed user group information is transmitted to the call controller 150 (step 218).

The call controller 150 receiving the mobile application call completion information stores the mobile application call completion information and transmits a call progress command to the base station controller 120 through the base station controller matching unit 140 (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 a call hold request message is received from the subscriber to hold a call currently in progress, the call hold request message is sent 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 call hold request message and determines whether the corresponding subscriber who has requested the service is registered in the call hold service in the mobile application call completion information stored in the above-described step (step 226).

If it is determined in step 226 that it is not registered in the call hold service, an error message or error tone is sent to the subscriber to inform that the call hold request has been rejected (step 228).

If the determination result in step 226 is registered in the call hold service, the mobile application call completion information determines whether it is registered in the conference call service (step 230).

If only the call hold service is registered and the conference call service is not registered, the call hold service is executed (step 232).

If it is determined that the call control unit 150 is registered in both the call hold service and the conference call service, the call hold and conference call processing unit 160 reports the start of the call hold service and the conference call service (step). 234).

If the authentication message for the start report is dropped from the call hold and conference call processing unit 160, the call hold service and conference call service authentication messages are transmitted to the base station controller matching unit 140, the base station controller 120, and the base station 110. Start call hold service and conference call service (step 236).

As described above, according to the present invention, when the subscriber requests the incoming call, the additional information related to the additional service is stored in the call controller in advance, and when it is determined that the subscriber is simultaneously subscribed to the call hold service and the conference call service, the call hold service and the conference By providing the call service at the same time, it is intended for the subscriber to simplify the application procedure of the supplementary service and to provide a convenient call hold service and conference call service to the subscriber.

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 call hold and conference call processing unit (160) for processing information of subscribers subscribed to call hold and conference call 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, via the received mobile application transmission information, calls the mobile application call completion information including additional service information (including call hold and conference call information) required for the subscriber. A second transmission step of transmitting to the control unit 150; 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. ; A first determination step of receiving a call hold request message for holding a call in progress from a subscriber during call progress and determining whether the subscriber is registered in a call hold service from mobile application call completion information stored in the second transmission step; A second judging step of judging whether or not the mobile application call completion information is registered in the conference call service if it is registered in the call holding service in the first judging step; If only the call hold service is registered as a result of the determination in the second determination step, the call hold service is executed, and if it is determined that the call hold service is registered in both the call hold service and the conference call service, Reporting the call on hold and conference call services to the call on hold and conference call processing unit 160; When the authentication message for the start report is dropped from the call hold and conference call processing unit 160, the call hold service and the conference call service authentication message are transmitted to the base station 110 to initiate the call hold service and the conference call service. Call hold and conference call processing method characterized in that.

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