KR100719894B1 - System and Method for Reporting a Moving Picture Communication Area in Wideband Code Division Multiple Access Network - Google Patents

Abstract

According to the present invention, when the other party leaves the video call area while the broadband mobile subscriber attempts or performs a video call to the recipient in the video call area, the caller is notified again when the other party enters the video call area. The present invention relates to a video call area notification service method and system in a broadband mobile communication network that allows a video call to be retried again or to continue a video call.

According to the present invention, when the called terminal enters the video call area when the called terminal is in an area where video calling is impossible, the calling terminal is notified immediately so that the video call can be made according to the available time of the called terminal. When the terminal located in the area where the call is impossible is notified of the possibility of the video call immediately when the video call becomes available, there is no need to inquire whether the video call of the other terminal is possible, thereby greatly improving the user's convenience.

Broadband, WCDMA, Video Call, Notification, SMS, HLR, SGSN, GGSN, PDN, Local

Description

System and Method for Reporting a Moving Picture Communication Area in Wideband Code Division Multiple Access Network

1 is a schematic diagram showing the configuration of a video call area notification system of a broadband mobile communication network according to an embodiment of the present invention;

2 is a flowchart illustrating a video call area notification service method in a broadband mobile communication network according to an embodiment of the present invention.

※ Explanation of codes for main parts of drawing

100: video call area notification system 110: mobile terminal

120: wireless base station 122: RTS

124: RNC 126: EMS

130: mobile switching center 132: HLR

134: VLR 136: SMS Center

140: SGSN 150: GGSN

160: PDN 170: video notification server

The present invention relates to a video call area notification service method and system in a broadband mobile communication network. More particularly, the present invention relates to a method in which a counterpart leaves a video call area while a broadband mobile subscriber attempts or performs a video call to a recipient in a video call area. And, when the other party enters the video call area again, by notifying the caller to allow the caller to retry the video call or to continue the video call. It is about.

Wideband Code Division Multiple Access (WCDMA) communication method is an asynchronous wireless protocol recommended by International Mobile Telecommunication (IMT) -2000, which uses a spread spectrum method, and is suitable for a large amount of data transmission and has a very high call quality. The WCDMA system adopts 32 Kbps Adaptive Differential Pulse Code Modulation (ADPCM) for voice coding, and supports high mobility enough to make a call even if the user moves at a speed of about 100 km per hour.

If a user is moving while receiving a multimedia service from a WCDMA system to a mobile communication terminal, the user can move to another base station or another sector area within the base station. At this time, the mobile communication terminal performs a hand-over for switching the communication path between the mobile communication terminal and the base station so that the call can be continuously maintained even if it leaves the sector service area within the base station currently receiving the service. do. In addition, the camera is equipped with a terminal to perform a video call to take a picture of yourself and send.

However, when the user is located in the shadow area of the call away from the mobile communication service area with the mobile communication terminal or in a non-call area where the base station is not installed, communication is lost and the call cannot be made. In addition, although a video call is possible according to a communication service area, when a user leaves the WCDMA video call area, a call may not be made and a voice call may be made.

Therefore, if the communication is interrupted out of the video call area while the video call is in progress, or if the other party is located in a non-video call area and cannot be dialed from the beginning, even when the user wants to make a WCDMA video call with the other party, Since it is impossible to know whether or not the user has entered the video call area, there is a problem in that there is no other method for notifying the other party that the other party enters the video call area and making a video call in addition to the method of attempting a direct call each time.

In order to solve the above problem, the present invention relates to a method for resolving a problem in which a wideband (WCDMA) mobile subscriber attempts to perform or conducts a video call with a receiver in a video call area. It is an object of the present invention to provide a video call area notification service method and system in a broadband mobile communication network by notifying a caller when entering, thereby allowing the caller to retry the video call or to continue the video call.

In order to achieve the above object, a video call area notification system of a broadband code division multiple access network according to the present invention performs a voice call or a video call through a circuit network and a packet network, and inquires whether a video call including a phone number of a counterpart terminal is possible. A mobile terminal configured to perform an outgoing call and then be notified of whether the called terminal is capable of a video call; A home location register receiving the location information of the mobile terminal and the counterpart terminal and performing a function including registration recognition, registration deletion, and location verification; A mobile switching center that performs a function of performing a video call service including a voice call and soft switching to speed up call processing; And when the called terminal requesting a video call from the mobile terminal enters the video call region and makes a video call, the mobile terminal notifies the mobile terminal that the video call is possible, or the area where the video call is impossible between the mobile terminal and the called terminal. If the destination terminal is located in the video call area and the call is possible while performing a voice call in the, characterized in that it comprises a video notification server for notifying the mobile terminal of the video call availability state of the called terminal.

In addition, the video call area notification service method of a broadband code division multiple access network according to another object of the present invention, the first step of performing the location registration to the wireless base station to the area where the calling terminal and the destination terminal is located; Requesting whether the terminal is located in a video call area of the called terminal; Querying location information of the called terminal with a location register; And a fourth step of notifying the calling terminal that the called terminal is capable of making a video call if the called terminal is located in a video call area based on the location information.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings.

In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a configuration diagram schematically showing the configuration of a video call area notification system of a broadband mobile communication network according to an embodiment of the present invention.

The video call area notification system 100 of the broadband mobile communication network according to the present invention includes a mobile terminal 110, a wireless base station (UTRAN: UMTS Terrestrial Radio Access Network) (UTRAN), and a mobile switching center (MSC) 130. ), Home Location Register (HLR) (HLR) 132, Visitor Location Register (VLR) (VLR) (134), SMS (Short Message Service) Center 136, Serving GPRS Support Node (SGSN) 140, Gateway GPRS Support Register (GGSN) 150, Packet Data Network (PDN) (hereinafter referred to as PDN) 160, Video Notification Server 170 and the like.

The mobile terminal 110 performs a call for inquiring whether or not a video call is possible, including a phone number of the other party's terminal, and accordingly, the mobile terminal 110 is notified of whether the other party's video call is possible by a voice message or a text message. In addition, the mobile terminal 110 may change the voice message or text message when the counterpart terminal moves to the video call area and makes a video call even when a voice call is made with the counterpart terminal in the non-video region. SMS) is notified by the message, and performs a video call with the other terminal. In addition, the mobile terminal according to the embodiment of the present invention includes not only a mobile phone but also a PDA.

The wireless base station 120 includes a Node B 122 and a Radio Network Controller (RNC) 124 with an additional function for supporting WCDMA in an existing IS-95B system. The Node B 122 performs a wireless access termination function with the mobile terminal 110 according to the 3GPP wireless access standard, transmits and receives voice, video, and data traffic in a WCDMA manner, and transmits and receives an antenna through a transmit / receive antenna. 110 has a function of transmitting and receiving information. In general, the internal subsystem of Node B 122 is composed of a Base Station Interconnection Subsystem (BIS), a Base Band Subsystem (BBS), and a Radio Frequency Subsystem (RF).

The wireless control station 124 is a wired or wireless channel management, mobile terminal 110 protocol matching, base station protocol matching, soft handoff processing, core network protocol processing, GPRS (General Packet Radio Service) access, failure management, system loading It is in charge of functions such as (Loading). Here, GPRS is an asynchronous communication service that supports a data transmission rate of 115 Kbps, provides a multimedia mail, and maximizes the efficiency of the transmission line by packet data transmission.

Element Management System (EMS) 126 allows an operator to directly set various parameters for mobile communication or to manage various parameters.

The mobile switching center 130 has a soft switching structure for speeding up call processing in addition to the basic switching function for a telephone call in an existing CDMA 2000 network. Here, soft switching is a technology capable of processing voice, data, and video signals with a high speed packet switch by implementing a circuit switch of a conventional exchange as a software switch.

The HLR 132 receives the location information of the mobile terminal 110 from the VLR 134 and performs functions such as registration recognition, registration deletion, and location verification. In addition, the HLR 132 obtains the profile information of the mobile terminal 110 from the home location register to which the mobile terminal 110 is initially subscribed using the location information received from the visitor location register 134. In addition, the HLR 132 checks the connection state of the mobile terminal 110 registered with the location thereof, checks whether the mobile terminal 110 is in an idle mode or an active mode, and activates the active mode. If it is, it continuously checks whether it is connected to the circuit network or the packet network.

The VLR 134 registers and manages location information of the mobile terminal 110 coming into the jurisdiction of the mobile switching center 130 and informs the HLR 132 of the newly acquired location information of the mobile terminal 110. Perform. In addition, while receiving and managing a copy of the profile information of the mobile terminal 110 from the HLR 132, it performs a function to utilize the position control, call processing, etc. of the mobile terminal 110. In FIG. 1, for convenience of description, the VLR 134 is illustrated as being separately installed outside the mobile switching center 130, but is generally installed inside the mobile switching center 130.

The SMS center 136 converts the delivery message sent from the calling party into an SMS message and sends it to the called party.

The SGSN 140 has a hardware structure that provides an Asynchronous Transfer Mode (ATM) -based switch and routing connection for a GPRS service, and has an operating system (OS) for processing various data services. The main functions of the operating system consist of GPRS mobility management, GPRS session management, GPRS authentication and billing functions.

The GGSN 150 is a serving node of an IP (Internet Protocol) based packet network that provides a high speed packet data service for GPRS data service. The GGSN 150 is connected to the packet data network 160 to provide mobility of a packet data service. And various data related protocol processing functions. In addition, the GGSN 150 provides address allocation, domain address change, billing information, and maintenance functions.

The video notification server 170 indicates that a video call is possible to the mobile terminal 110 when the other terminal requesting a video call from the mobile terminal 110 enters the video call area and makes a video call. Notify me by message. In addition, when the other terminal is located in the video call area and makes a call while performing a voice call between the mobile terminal 110 and the other terminal in a video call impossible area, the other terminal is moved to a voice message or SMS message. Functions to notify the terminal 110.

2 is a flowchart illustrating a video call area notification service method in a broadband mobile communication network according to an embodiment of the present invention.

First, the mobile terminal 110 and the counterpart terminal perform location registration with respect to the wireless base station 120 that manages the area where the mobile terminal 110 is located (S202). Since the location registration information is a general technical information well known in the art, a detailed description thereof will be omitted.

Therefore, the current location of the mobile terminal 110 and the counterpart terminal is registered and stored in the HLR 132. Of course, even if the mobile terminal 110 and the counterpart terminal is located in another area instead of the area to which the first terminal is joined, the location area is stored in the HLR 132 through the VLR 134.

In order to make a video call with the other party through the mobile terminal 110, the user performs a request for confirming whether the other party's terminal is located in an area where a video call is currently possible (S204). For example, the user attempts to make a call by inputting a special button for inquiring whether a video call is possible through the mobile terminal 110, that is, a ## button and a phone number 010-3955-7438 of the counterpart terminal.

The video call availability request signal transmitted from the mobile terminal 110 is transmitted to the image notification server 170 via the wireless base station 120 and the mobile switching center 130.

The video notification server 170 receiving the video call availability confirmation signal from the mobile terminal 110 transmits the telephone number of the other party's terminal included in the video call availability confirmation request signal to the HLR 132, thereby making the video call area. Inquire the location information of the other party terminal to determine whether it is located (S206).

The HLR 132 searches its database and transmits the phone number of the counterpart terminal, that is, location information of the terminal corresponding to 010-3955-7438, to the image notification server 170. In this case, the location information is transmitted when the counterpart terminal enters the video call available area and registers the location, and the HLR 132 monitors the location registration information of the counterpart terminal in the video call available area. Then, the information informing that the video call is possible is transmitted to the video notification server 170.
To this end, the HLR 132 of the present invention has location information of a network capable of video call and a network capable of video call, and accordingly, the counterpart terminal registers a location with a network capable of video call or cannot perform a video call. You can check whether the location is registered by network.
In addition, the location information should be delivered only when the corresponding terminal is a terminal that supports video call. For this purpose, the HLR 132 includes a video call service field to check whether the terminal is capable of a video call.
As a result, the HLR 132 is a terminal capable of satisfying two conditions, i.e., a video call server, and when the location registration is performed on a network capable of video call, the HLR 132 provides information indicating that the counterpart terminal is in a video call state. 170).
The video notification server 170 determines whether the counterpart terminal is in a video callable area based on the location information of the counterpart terminal received from the HLR 132. That is, the video notification server 170 manages the information of the calling terminal and the called (party) terminal that are requested to notify the video call state according to the video call availability confirmation request signal, and the specific terminal is connected to the image from the HLR 132. When information indicating that the call is available is received, the device recognizes the available call state.

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If it is determined that the other terminal is located in the video call area (S208), the video notification server 170 transmits an SMS message indicating that the other terminal is available for video call to the mobile terminal 110 through the SMS center 136. Give (S210).

Therefore, the user may check the SMS message indicating that the other terminal received from the mobile terminal 110 can make a video call, request a video call to the other terminal, and perform the video call at a time when the other terminal can make a video call. Will be. Of course, the image notification server 170 may notify the mobile terminal 110 in a voice message whether or not a video call of the counterpart terminal is possible.

On the other hand, after the user performs the location registration to the wireless base station 120, and immediately enters the phone number of the other terminal to request a video call (S212).

The mobile switching center 130 checks the position of the counterpart terminal through the HLR 132 in response to the video call request of the mobile terminal 110, and if the counterpart terminal is located in an area where video call is impossible, only the CDMA 2000 1x mode voice call is performed. Connect with the other terminal (S214).

Therefore, the user does not become an image through the mobile terminal 110 but performs only a voice call with the other terminal.

Thereafter, the video notification server 170 receives a video call request from the mobile terminal 110 in association with the mobile switching center 130. Since the counterpart terminal is located in an area where video call is impossible, the HLR is performed as described above. Inquire at 132 with the location information of the other terminal.

When the counterpart terminal is located in the video call area by monitoring the location information of the counterpart terminal from the HLR 132, the SMS center 136 as described above even while a voice call is in progress between the mobile terminal 110 and the counterpart terminal. The mobile station 110 transmits an SMS message indicating that the other party can make a video call through the mobile terminal 110. In addition, the image notification server 170 may notify the mobile terminal 110 as a voice message whether or not a video call of the counterpart terminal is possible. Therefore, the user can check the notification message even during the voice call with the other party through the mobile terminal 110, and switch to the video call with the other party to perform the video call.

As described above, according to the present invention, if the other party leaves the video call area while a broadband (WCDMA) mobile subscriber attempts or performs a video call to a recipient in the video call area, the other party may enter the video call area again. By notifying the caller at the time, it is possible to realize a video call area notification service method and system in a broadband mobile communication network which allows the caller to retry the video call or to continue the video call.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when the called terminal enters the video call area and then enters the video call area, the calling terminal is notified to the calling terminal immediately so that the video call can be made according to the available time of the called terminal. Will be.

In addition, when a terminal capable of a video call is notified of the possibility of a video call immediately when a video call is possible, there is no need to inquire whether the other terminal is capable of a video call, thereby greatly improving user convenience.

Claims (10)

Performs a voice call or a video call through a circuit switched network (CSN) and a packet switched network (PSN), performs a call to inquire whether a video call is possible including a telephone number of a called terminal, and then the incoming call. A mobile terminal notified of the availability of a video call by the terminal; Receives the location information of the mobile terminal and the called terminal to perform a function including registration recognition, registration deletion, location confirmation, and the destination terminal inquires whether or not the video call is possible, the video call is supported terminal, the video call area A home location register (HLR) for outputting information informing that the video call is possible when entering the location registration; A mobile switching station that executes a function of performing a video call service including a voice call and soft switching to speed up call processing; And An image notification server for notifying the mobile terminal of a video call availability state of the called terminal when receiving information indicating that the called terminal is available for video call from the home location register; Video call area notification system of a broadband code division multiple access network comprising a. The method of claim 1, An SMS center for converting a transmission message transmitted from a calling party into an SMS message and transmitting the same to a called party; A base station performing a wireless access termination function with the mobile terminal and transmitting and receiving voice, video and data traffic in a wideband code division multiple access (WCDMA) scheme; A visitor location register (VLR) for registering and managing location information of the mobile terminal entering the jurisdiction of the mobile switching center and notifying the home location register of the newly acquired location information of the mobile terminal; Serving GPRS Support (SGSN) with a hardware structure that provides Asynchronous Transfer Mode (ATM) -based switches and routing connections for GPRS services, and an operating system (OS) that supports data service processing. Node); And Providing a high-speed packet data service for the data service to the packet network, and further including a gateway GPRS support node (GGSN) for providing mobility of the data service and performing various data related protocol processing functions. Video call area notification system of broadband code division multiple access network characterized by. The method of claim 1, The mobile terminal is notified that the called terminal has been changed to the video call mode even when the called terminal moves to the video call area and makes a video call while making a voice call with the called terminal in an area where video call is impossible. Video call area notification system of broadband code division multiple access network characterized by. The method of claim 1, And the mobile terminal is informed from the video notification server whether or not a video call of the called terminal is possible by a short message service message. The method of claim 1, And the mobile terminal receives a voice message from the video notification server as to whether or not a video call can be made by the called terminal using a voice message. A first step in which the calling terminal and the called terminal perform location registration with a wireless base station that manages an area in which the calling terminal and the called terminal are located; Requesting whether the calling terminal is located in a video call area of the called terminal; A third step of outputting video call availability status information of the called terminal when a home location register is a terminal to which the called terminal supports video call and enters a video call area to perform location registration; A fourth step of, by the video notification server, notifying the calling terminal that the called terminal can make a video call according to the information output from the home location register; Video call area notification service method of a broadband code division multiple access network comprising a. The method of claim 6, And the second step comprises a request for inputting a special button for inquiring whether or not the user is located in the video call area and a telephone number of the called terminal. The method of claim 6, In the fourth step, the video call area notification service method of the broadband code division multiple access network, characterized in that notifying whether or not the video call of the called terminal by a short message service message. The method of claim 6, In the fourth step, a video call area notification service method of a broadband code division multiple access network, characterized in that notifying the calling terminal by a voice message whether or not the video call of the called terminal. The method of claim 6, While the calling terminal makes a voice call with the called terminal in the area where the video call is impossible, the calling terminal changes to the video call mode when the called terminal moves to the video call area and the video call is available. The video call area notification service method of a broadband code division multiple access network, characterized in that notified to.

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