KR20150025894A - Method and apparatus for providing guidance information of group video telephony - Google Patents

Method and apparatus for providing guidance information of group video telephony Download PDF

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KR20150025894A
KR20150025894A KR20130104041A KR20130104041A KR20150025894A KR 20150025894 A KR20150025894 A KR 20150025894A KR 20130104041 A KR20130104041 A KR 20130104041A KR 20130104041 A KR20130104041 A KR 20130104041A KR 20150025894 A KR20150025894 A KR 20150025894A
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video call
mobile communication
group video
invitation
communication terminal
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KR20130104041A
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Korean (ko)
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KR102048548B1 (en
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김병진
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에스케이텔레콤 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The present invention relates to a method and apparatus for providing guide information for group video call. The method of providing guidance information of a group video call includes the steps of: grasping an invitation failure reason from a message including an invitation failure reason of a mobile communication terminal apparatus requested to be invited to a video communication room for group video communication service; Extracting guide information corresponding to an invitation failure reason among a plurality of pieces of information, and transmitting the extracted guide information through a call processing path so as to be transmitted to a mobile communication terminal device participating in the group video call service. Therefore, the participant of the group video call, which has invited other mobile communication terminal apparatuses to the video call room or is connected to the video call room first, can understand the reason for failure of the group video call.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and apparatus for providing guidance information on a group video call,

The present invention relates to a method and apparatus for providing guide information for group video call. And more particularly, to a method and apparatus for providing guide information during a multi-party group video call service.

As is well known, the ALL-IP network can provide interworking services with an Internet network using IP (Internet Protocol), and can provide solutions suitable for integrated multimedia services including voice, data, ), And the cost reduction effect can be obtained through the packet transmission.

As a core technology for providing a new service in the All-IP based communication environment, an IP Multimedia Subsystem (hereinafter referred to as " IP Multimedia Subsystem ") defined as a core technology for providing various services to subscribers based on the ALL- Quot; IMS "). Such an IMS can provide IP services over a packet network regardless of the access network format, and can provide services that require transmission of multimedia data such as one-to-one video calls as well as general call services.

In 3GPP Release 8, EPC (Evolved Packet Core), which is a network architecture, is described as one of mobile communication systems. The EPC is a collection of network nodes for the 3GPP LTE system. The EPC evolves the core network of the existing 3GPP system architecture to support Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN), which is an evolved RAN, And has an efficient network structure that simplifies the network node. A wireless communication system including an EPC and an E-UTRAN may be referred to as an evolved packet system (EPS) and corresponds to an LTE mobile communication system currently in service in Korea.

Since the LTE mobile communication system can allocate a plurality of communication resources to form a plurality of video call routes, it is possible to provide a multi-party group video call service as well as a one-to-one video call service. Such a group video call service may be referred to as a conference video call service.

When a group video call service is requested by a mobile communication terminal device, communication services such as a URI (Uniform Resource Identifier) are allocated to establish a video communication room, and a mobile communication terminal And gives the terminal device a role of a guardian of the opened video communication room.

When the mobile communication terminal device serving as the clerk requests the invitation to the video communication room with respect to the other mobile communication terminal devices, a message requesting establishment of a session for group video communication is transmitted to the corresponding mobile communication terminal devices When the invited mobile communication terminal devices return a message for determining participation of the group video call, the corresponding mobile communication terminal devices are connected to communication resources for group video communication to provide a multi-party video communication service.

However, invitation to a video call room targeting mobile communication terminal devices may fail due to various reasons. In this case, a server providing a telephony service of IMS such as a group video call at the called party provides a SIP (Session Initiation Protocol) error response message.

However, since there are various reasons for the invitation failure but the error response message is limited, the same error response message may be provided even when the reasons for the invitation failure are different.

Therefore, in the server providing the telephony service of the IMS such as the group video call at the calling party, the reason for the invitation failure can not be accurately known, and accordingly, when the other mobile communication terminal devices are invited to the video communication room There is a problem that it is not possible to inform the participants of the group video call connected to the video call room about the reason for failure of the group video call.

Korean Patent Registration No. 10-0726231, filed on June 01, 2007. Korean Patent Registration No. 10-0976920, filed on August 12, 2010.

According to an embodiment of the present invention, there is provided a method and apparatus for receiving guide reason from a called party when an invitation failure of a group video call is provided, and providing guide information including a cause of failure of group video call to a participant of the group video call .

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved can be clearly understood by those skilled in the art from the following description.

A method for providing guidance information on group video call according to an aspect of the present invention includes: receiving a message including a reason for an invitation failure of a mobile communication terminal apparatus requested to be invited to a video call room for a group video call service, Extracting guide information corresponding to the invitation failure reason from a plurality of pieces of previously stored information, and transmitting the extracted guide information to a mobile communication terminal device participating in the group video call service, To the mobile station.

The present invention provides a guidance information providing apparatus for a group video call according to another aspect of the present invention, the apparatus comprising: An information storage unit in which a plurality of guide information corresponding to each of a plurality of invitation failure reasons that may cause an invitation failure of the group video call service is stored; And an information transmission unit for extracting the guide information corresponding to the found invitation failure reason from the information storage unit and transmitting the extracted guide information through the call processing path to be transmitted to the mobile communication terminal device participating in the group video call service.

According to the embodiment of the present invention, upon receiving an invitation failure of a group video call, the called party receives the reason and provides guide information including a cause of failure of the group video call to a participant of the group video call.

Therefore, the participant of the group video call, which has invited other mobile communication terminal apparatuses to the video call room or is connected to the video call room first, can understand the reason for failure of the group video call.

1 is a network configuration diagram of a mobile communication service system capable of employing a guide information providing apparatus for group video call according to an embodiment of the present invention.
2 is a detailed block diagram of a guide information providing apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method of providing guide information of a group video call according to an embodiment of the present invention.
4 is a flowchart illustrating a process of providing guide information of group video call by a mobile communication service system employing an apparatus for providing guide information of group video call according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

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

1 is a network configuration diagram of a mobile communication service system capable of employing a guide information providing apparatus for group video call according to an embodiment of the present invention. 1 illustrates a case where an LTE mobile communication network is operated together with a WCDMA mobile communication network, which is a legacy network, but the legacy network is not limited thereto. For example, other asynchronous mobile communication networks such as GSM (Global System for Mobile) and other synchronous mobile communication networks such as CDMA2000 and the like can be mixed with LTE mobile communication network.

The mobile communication service system described above provides a mobile communication service to mobile units (UEs) 310, 320, and 330 of dual mode capable of accessing an LTE network as well as a legacy network such as a WCDMA network . Here, the three mobile communication terminal devices 310, 320, and 330 are shown as an example to help understand the explanation.

The mobile communication terminal apparatuses 310, 320, and 330 may include a Node B 210 serving as a base station constituting a WCDMA mobile communication network, a service area 111 of an eNodeB 110 serving as a base station constituting an LTE mobile communication network, In the service overlap area included in the service area 211 of FIG. For example, the mobile communication terminal devices 310, 320, and 330 may be implemented in various forms such as a smart phone, a notepad, and a tablet computer.

an eNodeB 110, a Mobility Management Entity (MME) 120, an Home Subscriber Server 130, a Serving Gateway 140, a Packet Data Network Gateway 150, an MSC server 160, , Policy & Charging Rule Function (PCRF) 170, and the like may constitute an LTE mobile communication network.

The eNodeB 110 communicates with the mobile communication terminals 310, 320, and 330 to serve as a base station that assures mobility. The eNodeB 110 includes a radio bearer control, radio admission control, connection mobility control, dynamic resource allocation to the mobile communication terminals 310, 320 and 330, resource allocation, and resource allocation. In addition, IP header compression and decryption of user data streams, routing of user plane data to SGW 140, scheduling and transmission of paging messages, scheduling and transmission of broadcast information, And performs measurement and measurement report settings for mobility and scheduling.

The MME 120 takes charge of signal control between the eNodeB 110 and the SGW 140 and determines the routing of the transmission data of the mobile communication terminal units 310, 320 and 330. The MME 120 performs paging message distribution to the eNodeB 110, non-access spectrum (NAS) signaling, intra-network handover control, tracking area list management, and the like. In addition, the MME 120 performs selection of the SGW 140 and the PGW 150, selection and change of the MME 120 for handover, terminal authentication, and the like. The MME 120 processes a control signal when there is a combination request from the mobile communication terminal device 310, 320 or 330 or another network node such as the PGW 150 or the SGW 140, (Evolved Packet System Bearer) or an IP tunnel (hereinafter, referred to as an IP tunnel) by receiving subscriber profile information, authentication and location related data from the HSS 130, , And mobility management.

The HSS 130 is a network node including a data base including subscriber information for the LTE mobile communication network and stores subscriber profile information, authentication and location related data.

The SGW 140 is a user plane node that performs session control for processing payload traffic according to a set session. U-interface with the eNodeB 110, supports handoff in the 3GPP, sets up the EPS bearer with the PGW 150, and delivers PDU (Packet Data Unit) using tunneling. The SGW 140 selects the PGW 150 based on the subscriber profile, and generates billing data for mutual settlement with the PGW of the home network when the call is an inbound roaming call.

The PGW 150 is a user plane node that assigns IP addresses of the mobile communication terminal units 310, 320, and 330 and performs session control in cooperation with an external Internet network and a non-3GPP network. Maintains routing information with the SGW 140 and the external network for packet service, and performs tunneling and IP routing functions. In addition, the PDU is delivered to the SGW 140 and the external network. The PGW 150 performs a charging process in the case of a local call.

The MSC server 160 provides a session data protocol for voice and video for an additional function by the IMS (IP Multimedia Subsystem) 400.

The PCRF 170 provides a dynamic QoS (Quality of Service) and a charging rule according to a service data flow to perform a communication policy and a charging process in the communication network.

A Node B 210, an RNC 220, an SGSN 230, a Mobile Switching Center (MSC) 240, a Home Location Register (HLR) 250, a Cellular Gateway Switch (CGS) 260, a Gateway General Packet a radio service support node 270 and the like may constitute a WCDMA mobile communication network. Here, the Node B 210 and the RNC 220 correspond to a radio access network area, the MSC 240 and the CGS 260 correspond to a circuit switching core network, and the SGSN 230 and the GGSN 270 exchange packets. Corresponds to the core network.

The NodeB 210 secures a frequency used for connection with the mobile communication terminal units 310, 320 and 330 and ensures stable connection with the mobile communication terminal units 310, 320 and 330.

The RNC 220 controls a plurality of NodeBs 210, allocates communication resources to each of the NodeBs 210, and performs a handover function.

The SGSN 230 is connected to a plurality of RNCs 220 and is responsible for mobility and packet session management of the mobile communication terminals 310, 320 and 330 and is capable of performing IP routing. The mobile communication terminal units 310, 320, < / RTI > 330).

The GGSN 270 directly connects with the IP network and serves as a gateway for connecting the IP domain and the PS domain of the WCDMA network. The GGSN 270 maintains routing information with the SGSN 230 and the external network, performs tunneling and IP routing Function.

The MSC 240 stores visitor location information, receives subscriber profile information, authentication and location related data from the HLR 250, and performs switching control for voice communication.

The CGS 260 serves as a gateway for connecting the WCDMA mobile communication network and the general communication network and enables communication with another communication system connected to the general communication network and acts as a gateway between the MSC 240 and the IMS 400.

(CSCF) 410, a home location register (HLR) 420, a media gateway 430, a media gateway control function (MGCF) 440, an application server 450, A Multimedia Resource Function (MRF) 460, an IP Multimedia Subsystem Charging Gateway (IMS CG) 470, and the like may constitute an IMS (IP Multimedia Subsystem) 400.

The guide information providing apparatus 500 of the group video call according to the embodiment of the present invention may be installed in the MRF 460 among the nodes constituting the IMS 400 or separately installed in the MRF 460 and the MRF 460, Can be interlocked. Hereinafter, a case where the guide information providing apparatus (reference numeral 500 in FIG. 2) is mounted on the MRF 460 will be described as an example.

The CSCF 410 is an infrastructure system that performs call processing and performs basic functions for multimedia session control based on SIP (Session Initiation Protocol). The CSCF 410 handles subscriber registration, authentication, billing, triggering and routing by service, inquiry of the location of the called party, compression and release of SIP messages, and can be divided into Proxy_CSCF, Interogating-CSCF and Serving-CSCF depending on its role.

The HLR 420 is a network node including a database including subscriber information for a WCDMA mobile communication network and / or an LTE mobile communication network, and stores subscriber profile information, authentication and location related data.

The MGW 430 is a gateway serving as a gateway between the MGCF 440 and the CGS 260 and converts signaling and media for interworking with an LTE mobile communication network connected to the CSCF 410 and a WCDMA mobile communication network.

The MGCF 440 performs signal conversion for interworking with the PSTN, ISUP (ISDN User Part), and WCDMA used in the SIP and the circuit switched network, and controls the MGW 430. That is, protocol conversion between the legacy network and the IMS (400) call control protocol is performed. For example, the MGCF 440 may convert the signal for the incoming call to the IMS 400 in WCDMA and forward it to the CSCF 410.

The AS 450 is a server for providing a telephony service and provides additional services such as a caller display service, a call / incoming call prohibition, a call forwarding, and the like. The AS 450 includes a group video call service, intelligent network prepaid billing processing, billing information transmission, a floor control function for performing a push-to-talk (PTT) function, announcement, ring- And the like. One AS 450 may provide all application service functions, and a plurality of ASs 450 may provide application service functions corresponding to respective functions. In addition, the AS 450 receives the invitation failure reason from the called party when the group video call is not invited, and transmits the reason to the MRF 460.

The MRF 460 acts as a media server that provides media sources on the IMS 400. The MRF 460 also manages call announcements (voice / video) provided to the mobile communication terminal devices 310, 320 and 330 and performs various functions such as mixing of streams for multi- Voice recognition, real-time transcoding of multimedia data, and the like. The MRF 460 is provided with a guidance information providing apparatus 500 for group video call according to an embodiment of the present invention. The MRF 460 transmits an invitation failure reason provided from the called party And provides guidance information including a cause of failure of the group video call to the mobile communication terminal device participating in the group video communication.

The IMS CG 470 refines the billing data provided from the AS 450 and transmits it to the billing system (not shown). That is, the group video call charge start message and the group video call charge stop message provided from the AS 450 are combined and transmitted to the billing system.

2 is a detailed block diagram of a guide information providing apparatus 500 that can be mounted on the MRF 460 of the IMS 400 according to an embodiment of the present invention.

As shown, the guide information providing apparatus 500 includes an invitation failure detection unit 510, an information storage unit 520, and an information transmission unit 530.

The invitation failure detection unit 510 monitors the progress of the group video call service, and when an invitation failure situation for the mobile communication terminal device in which the invitation to the video call room for the group video call is requested occurs, Analyze the message containing the reason for failure to determine the cause of the failure.

The information storage unit 520 stores a plurality of guide information corresponding to each of a plurality of invitation failure reasons that may cause invitation failure of the group video call service. For example, the guide information may be stored in the form of a guide image including a media source. Among the cause of the invitation failure, at least one of the power-off, the prohibition of the incoming call, the denial of the individual call, or the rejection of the anonymous call is stored differently in comparison with the other reasons. According to the embodiment, all invitation failure reasons including call rejection, non-response, shadow area, power-off, prohibition of incoming call, rejection of individual call reception and denial of anonymous call are transmitted to the information storage unit 520 in the form of different guide information .

The information transmission unit 530 extracts the guide information corresponding to the invitation failure reason recognized by the invitation failure detection unit 510 from the information storage unit 520 and transmits the invitation failure information to the mobile communication terminal device participating in the group video call service And transmits the guidance information including the reason through the call processing path.

3 is a flowchart illustrating a method of providing guide information of a group video call according to an embodiment of the present invention.

As shown in the figure, the guide information providing method according to the embodiment includes an invitation failure reason of the mobile communication terminal device requested to be invited to the video call room for the group video call service during the monitoring of the progress of the group video call service (S610, S620, and S630) by analyzing the message that has been invoked by the user.

The method further includes a step (S640, S650) of extracting guide information corresponding to the found invitation failure reason from a plurality of previously stored information.

The method further includes transmitting the extracted guide information to the mobile communication terminal device participating in the group video call service through a call processing path (S660).

3, when the guide information providing apparatus 500 of the group video call according to the embodiment of the present invention is installed in the MRF 460 of the IMS 400, the guide information providing method of the group video call shown in FIG. . In addition, it is premised that a situation occurs in which the invitation to the video call room for the group video call service fails between the calling party and the called party's AS 450 before. At this time, when the AS 450 of the calling party fails to invite the mobile communication terminal to the video communication room through the AS 450 of the called party, the AS 450 of the called party Transmitting a message including the invitation failure reason of the mobile communication terminal device to the AS 450 of the calling party, transmitting the invitation failure reason added to the message by the AS 450 of the calling party to the MRF 460 As shown in FIG.

Hereinafter, the process of providing guide information according to an embodiment of the present invention among the group video call service will be described in detail with reference to FIG. 1 to FIG.

4 illustrates a process of providing guidance information on a group video call by the mobile communication service system in which the guide information providing apparatus 500 for group video communication according to the embodiment of the present invention is installed in the MRF 460 of the IMS 400 Fig. 4, in order to facilitate the understanding of the description, in a situation where the second mobile communication terminal device 320 participates in a video communication room for group video communication established by the first mobile communication terminal device 310, The invitation failure occurs when the invitation 330 is further invited.

Steps 701 and 703 correspond to a process in which the second mobile communication terminal device 320 participates in a video communication room established by the first mobile communication terminal device 310 for group video communication.

First, a REFER message requesting that the first mobile communication terminal device 310 connect to the designated communication resource for inviting the third mobile communication terminal device 330 to the video communication room established for group video communication is transmitted to the CSCF 410 And the CSCF 410 forwards the REFER message to the originating AS 450 (705). When the originating AS 450 returns a 200 OK message to the REFER message, the CSCF 410 transmits the 200 OK message to the first mobile communication terminal 310 (707).

The originating AS 450 confirms the URI (Uniform Resource Identifier) of the video call room established for the group video call service, and establishes a session for providing the group video call service to the third mobile communication terminal 330 (709) to the MRF (460) requesting the MRF (460), and the MRF (460) receiving the Invite message is capable of providing the media service such as mixing the stream for the group video call (711) an OK message to the originating AS 450.

Then, the calling side AS 450 transmits an invite message to the CSCF 410 requesting establishment of a session to invite the third mobile communication terminal device 330 to the video call room for the group video call service.

The CSCF 410 then transmits 719 an invite message requesting the establishment of the session to the destination AS 450 managing the third mobile communication terminal device 330 and sends it to the third mobile communication terminal device 330 So as to establish a session connecting to the video call room for the group video call service. At this time, the invite message for inviting the user to the video call room may include the URI of the video call room and the identification information of the first mobile communication terminal device 310.

Here, when the third mobile communication terminal device 330 determines to participate in the group video call, it transmits a 200 OK message, and the 200 OK message is transmitted to the calling AS 450 through the CSCF 410.

However, the invitation to the group video call by step 713 may fail due to various reasons. For example, a state in which the third mobile communication terminal device 330 is in a call state, a state in which the third mobile communication terminal device 330 does not respond to paging, a state in which the third mobile communication terminal device 330 is located in a shaded area, When the third mobile communication terminal device 330 is powered off, the third mobile communication terminal device 330 is set to prohibited reception, and the third mobile communication terminal device 330 is in a state of rejecting reception When the third mobile communication terminal unit 330 is in the set state, and the first call to the group video call is an anonymous call while the reception of the anonymous call is denied, invitation failure occurs.

When the invitation failure occurs, the destination AS 450 transmits an error response message to the CSCF 410 (715), and the CSCF 410 transmits the error response message to the originating AS 450. At this time, one of several types of error response messages is selected and transmitted according to the reason for the invitation failure, and the identification information indicating the reason for the invitation failure is included in the error response message and transmitted together.

According to the embodiment, reasons for invitation failures, types of error response messages, and reasons for invitation failures can be used as shown in Table 1 below.

Reason for invitation failure Types of error response messages Identification of the reason for the invitation failure calling 486 Busy No answer 408 NoAnswer Shaded area 499 NopagingResponse Power off 480 PowerOff Do not call 480 BAIC Unsubscribe from Private Calls 480 ICS Anonymous call unsubscribe 480 CNIRR

The originating AS 450 then transmits an ACK message to the MRF 460 indicating that it has received an error response message from the terminating AS 450 managing the third mobile communication terminal 330 )do. At this time, the ACK message includes the identification information of the invitation failure reason for the third mobile communication terminal device 330 as shown in Table 1 and is transmitted.

The originating AS 450 then sends 719 a BYE message to the MRF 460, which means that it does not need to provide a media service such as stream mixing for group video calls, and the MRF 460 sends a BYE message, (721) a 200 OK message with the meaning of acknowledgment to the message to the originating AS 450.

Then, the MRF 460 grasps the reason for the failure to invite the third mobile communication terminal unit 330 to the group video call according to the identification information of the invitation failure reason included in the ACK message received in step 717, (723) to the first mobile communication terminal device (310), which has invited other mobile communication terminal devices in the video communication room, as a secretary, after preparing the guide information corresponding to the found invitation failure reason, (723) the same guidance information to the second mobile communication terminal apparatus 320 that has been connected.

The process of transmitting guidance information by the MRF 460 will be described in more detail. First, the invitation failure detection unit 510 of the guidance information providing apparatus 500 mounted on the MRF 460 detects the progress of the group video call service (S610).

When the invitation failure detection unit 510 detects an invitation failure situation for the third mobile communication terminal unit 330 in which the invitation to the video call room is requested during the monitoring of the group video call, (S620, S630) of the guide information providing apparatus 500 by analyzing the message including the ACK message, i.e., the ACK message at step 717, to grasp the invitation failure reason, and provide the found invitation failure reason to the information transmitting unit 530 of the guide information providing apparatus 500 .

Then, the information transmission unit 530 searches the information stored in the information storage unit 520 and extracts guide information corresponding to the invitation failure reason recognized by the invitation failure detection unit 510. [ For example, the guide information is extracted in the form of a guide image including a media source. In addition, all the invitation failure reasons including the busy state, the non-response, the shadow area, the power-off, the prohibition of the incoming call, the rejection of the individual call or the rejection of the anonymous call are distinguished in the form of different guide information (S640, S650).

Then, the information transmission unit 530 transmits the call processing route to the first mobile communication terminal device 310 and the second mobile communication terminal device 320 participating in the group video call service, Lt; / RTI > The guidance information (video) guiding the cause of the invitation failure is transmitted to the first mobile communication terminal device 310 and the second mobile communication terminal 310 via the AS 450, the CSCF 410, the PGW 150 and the eNodeB 110, And transmitted to the terminal device 320 (S660).

Accordingly, the users of the first mobile communication terminal device 310 and the second mobile communication terminal device 320 can recognize the reason for failure of the group video call by recognizing the guide information.

Each block of the block diagrams attached hereto and combinations of steps of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus so that the instructions, which may be executed by a processor of a computer or other programmable data processing apparatus, And means for performing the functions described in each step are created. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory It is also possible for the instructions stored in the block diagram to produce a manufacturing item containing instruction means for performing the functions described in each block or flowchart of the block diagram. Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible that the instructions that perform the processing equipment provide the steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

Also, each block or each step may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative embodiments, the functions mentioned in the blocks or steps may occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially concurrently, or the blocks or steps may sometimes be performed in reverse order according to the corresponding function.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

According to the embodiment of the present invention, upon reception of an invitation failure of a group video call, the receiver receives the reason and provides guidance information including a cause of failure of the group video call to a participant of the group video call. A participant of a group video call that has invited other mobile communication terminal devices to a video call room or is connected to a video call room first can know the reason for failure of the group video call.

The apparatus and method for providing guide information according to an embodiment of the present invention can be used in providing a group video call service in an IMS and LTE based mobile communication service system or the like.

460: MRF 500: guide information providing device
510: invitation failure detection unit 520: information storage unit
530: Information transmission unit

Claims (5)

Determining a cause of the invitation failure from a message including an invitation failure reason of a mobile communication terminal apparatus that is invited to a video call room for a group video call service;
Extracting guide information corresponding to the invitation failure reason from a plurality of previously stored information,
And transmitting the extracted guide information to a mobile communication terminal device participating in the group video call service through a call processing path
A method for providing guide information of group video call. The method according to claim 1,
Wherein at least any one of reasons for power failure, prohibition of incoming call, rejection of individual call reception, or rejection of anonymous call among the reasons for invitation failure is different from that of other reasons,
A method for providing guide information of group video call. The method according to claim 1,
Prior to the step of grasping the invitation failure reason,
The invitation to the video call room to the mobile communication terminal device fails;
Further comprising: transmitting a message to the mobile communication terminal device to which the invitation failure reason is added
A method for providing guide information of group video call. An invitation failure grasping unit for grasping the invitation failure reason from a message including an invitation failure reason of a mobile communication terminal apparatus which is invited to a video communication room for group video communication service,
An information storage unit for storing a plurality of guide information corresponding to each of a plurality of invitation failure reasons that may cause an invitation failure of the group video call service;
An information transmission unit for extracting guide information corresponding to the invitation failure reason recognized by the invitation failure detection unit from the information storage unit and transmitting the guidance information through a call processing path to be transmitted to the mobile communication terminal device participating in the group video call service Included
A guide information providing device for group video call. 5. The method of claim 4,
Wherein at least any one of reasons for power failure, prohibition of incoming call, rejection of individual call reception, or rejection of anonymous call among the reasons for invitation failure is different from that of other reasons,
A guide information providing device for group video call.
KR1020130104041A 2013-08-30 2013-08-30 Method and apparatus for providing guidance information of group video telephony KR102048548B1 (en)

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