KR20100083588A - Apparatus, system and method for sellecting speech or multimedia call in mobile communication system - Google Patents

Apparatus, system and method for sellecting speech or multimedia call in mobile communication system Download PDF

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Publication number
KR20100083588A
KR20100083588A KR1020090003047A KR20090003047A KR20100083588A KR 20100083588 A KR20100083588 A KR 20100083588A KR 1020090003047 A KR1020090003047 A KR 1020090003047A KR 20090003047 A KR20090003047 A KR 20090003047A KR 20100083588 A KR20100083588 A KR 20100083588A
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South Korea
Prior art keywords
call
mode
user terminal
multimedia
voice
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KR1020090003047A
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Korean (ko)
Inventor
강상용
김낙포
최종윤
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주식회사 케이티
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Priority to KR1020090003047A priority Critical patent/KR20100083588A/en
Publication of KR20100083588A publication Critical patent/KR20100083588A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16Communication-related supplementary services, e.g. call-transfer or call-hold
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections

Abstract

PURPOSE: A device for dynamically selecting voice or a multimedia call, a system thereof, and a method thereof are provided to dynamically select voice or a multimedia call in a mobile communication system which supports an SCUDIF(Service Change & Unrestricted Digital Interface Fallback) call. CONSTITUTION: A message receiving unit(610) receives a message informing a call attempt request in a fixed calling mode from the first user terminal. A dynamic selection processing unit(640) receives a call mode that a user wants. A message transmitting unit(620) requests call path opening according to the inputted call mode. After the call path opening in case of a call request of the first user terminal, the dynamic selection processing unit requests service switch according to the inputted call mode.

Description

Apparatus, system and method for sellecting speech or multimedia call in mobile communication system

An apparatus, system and method for dynamically selecting a voice or multimedia call, and more particularly, to an apparatus, system and method for dynamically selecting a voice or multimedia call in a mobile communication system to improve call success rate.

Modern mobile communication systems provide the capability to handle not only voice communications, but also multimedia transmissions such as the transmission of photos, videos, music and the like. Various protocols for integrating multimedia into mobile communication systems are defined in the 3rd Generation Partnership Project (3GPP), which is a joint standardization project of various standardized bodies in Europe, Japan, Korea, the United States, and China. The 3GPP protocol is, for example, a third generation network as configured in accordance with the Universal Wireless Telecommunication Network (UTMS) standard, as well as a second generation wireless communication network as configured according to the Global System for Mobile (GSM) standard. Used in

In previous 3GPP protocols such as 3G.324 of 3GPP R-99, only one of the voice call service and the multimedia call service was available. Therefore, a user who wants to temporarily switch between the voice call service and the multimedia call service needs to end the call and switch the service. To solve this problem, Service Change & Unrestricted Digital Interface Fallback (SCUDIF) has been integrated into 3GPP protocols such as R5 in 3GPP.

SCUIF not only enables service switching in a state where a call is connected between terminals supporting voice call service and multimedia call service, but also supports a terminal supporting any one of voice call service and multimedia call service. To be replaced by a service that

An object of the present invention is to provide an apparatus, system, and method for actively selecting a voice or multimedia call in a mobile communication system to increase a call success rate.

The object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

An aspect of a system for dynamically selecting a voice or multimedia call for achieving the above object comprises: a first exchange receiving a call request in a predetermined call mode from a first user terminal; And a second exchanger configured to transmit the call request message from the first user terminal to a second user terminal to which an incoming call is received, wherein the second user terminal receives a desired call mode from a user and the first user terminal. The channel is opened according to the call mode entered in between.

One aspect of the apparatus for dynamically selecting a voice or multimedia call of the present invention for achieving the above object is a message receiving unit for receiving a message indicating that there is a call attempt request in a predetermined call mode from the first user terminal; A dynamic selection processing unit which receives and processes a desired call mode from a user; And a message transmitter for requesting the exchange to open a call according to the input call mode.

One aspect of the method for dynamically selecting a voice or multimedia call of the present invention for achieving the above object comprises the steps of: receiving a call request in a predetermined call mode from a first user terminal; Receiving a call mode with the first user terminal from a user of the second user terminal; And requesting establishment of a call path between the first user terminal and the second user terminal according to the input call mode.

According to an embodiment of the present invention, a call success rate may be increased by actively selecting a voice or multimedia call in a mobile communication system supporting a SCUDIF call.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

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

1 is a block diagram illustrating a mobile communication system according to an embodiment of the present invention. In this case, the mobile communication system of FIG. 1 may be understood as a Global System for Mobile Communication (GSM) and Universal Mobile Telecommunication System (UMTS) system supporting 3GPP protocol, but is not limited thereto. For example, it can be used not only in UMTS networks but also in IMS networks or other next-generation networks.

1, although there are a number of typical components that make up a mobile communication system in FIG. 1, an originating exchange (O-MSC) and terminating MSC (hereinafter referred to as "O-MSC") for an embodiment of the present invention. A case in which "T-MSC" is illustrated will be described as an example, and a case in which a mobile communication system according to an embodiment of the present invention supports a SCUDIF function or a similar function will be described as an example. .

As shown, the mobile communication system 100 according to an embodiment of the present invention is an originating user equipment (hereinafter referred to as "O-UE") 101, O-MSC 102, T-MSC ( 103) and terminating user equipment (hereinafter referred to as “T-UE”) 104, and SCUDIF functions include O-UE 101, O-MSC 102, and T-MSC 103. ) And T-UE 104. The O-UE 101 and the T-UE 104 may be divided into an originating terminal and a terminating terminal, respectively. In addition, the O-UE 101 and the T-UE 104 may be collectively referred to as user terminals, and one of the O-UE 101 and the T-UE 104 may be referred to as a first user terminal and the other may be referred to as a second user terminal. It may be called a user terminal. The user terminal may include personal digital assistants (PDAs), computers, and the like capable of wireless communication as well as user equipment used for wireless communication. In addition, although not shown in FIG. 1, it is obvious that the mobile communication system 100 of FIG. 1 may include typical components constituting the mobile communication system.

2 is a flowchart of a method for dynamically selecting a voice or multimedia call in the mobile communication system of FIG. 1 described above. 2 illustrates an example of a SCUDIF call processing procedure in a mobile communication system.

As shown, the call processing procedure in the mobile communication system according to the embodiment of the present invention, if the O-UE 101 wants to use the call service with the T-UE 104, the O-UE 101 Transmits a "SETUP" message for setting up the SCUDIF call to the O-MSC 102 (S211). In this case, the "SETUP" message may include information on services supported by the O-UE 101 (eg, multimedia call service or voice call service) and preferred services. For example, as shown in FIG. 2, the "SETUP" message may include information such as a Repeat Indicator (RI), a MultiMedia (MM), and a Speech (SP), where the RI refers to a SCUDIF call and the MM For example, a description will be given of a multimedia call service such as a video call and a SP indicating a voice call service. At this time, the preferred service can be known according to the order of services included in the "SETUP" message, in FIG. 2, since the MM is ahead of the SP, the O-UE 101 prefers the MM, and the SP is possible later. It can be understood to represent.

The O-MSC 102 transmits an "IAM (Initial Address Message)" message to the T-MSC 103 based on the "SETUP" message transmitted from the O-UE 101 (S212). In this case, the "IAM" message may include codec information of services supported by the O-UE 101 and a preferred service. In FIG. 2, mm is codec information for a multimedia call service, and AMR (Adaptive Multi Rate) may be understood as codec information for a voice call service. At this time, in the above-described step S211, a message including information about a service is transmitted, and in step S212, a message including information about a codec for a service is transmitted, but this is merely an example for helping understanding of the present invention. It can be understood that both the information about the service and the codec information for the service are used to indicate the service supported by the O-UE 101.

If the T-MSC 103 transmits an "IAM" message from the O-MSC 102, the T-MSC 103 performs a paging procedure with the T-UE 104 (S213) and the "IAM" transmitted from the O-MSC 102. On the basis of the message, the T-UE 104 and the " SETUP " message for setting up the SCUDIF call are transmitted to the T-UE 104 (S214). At this time, the "SETUP" message transmitted from the T-MSC 103 to the T-UE 104 may correspond to the services supported by the O-UE 101 and the preferred service, such as the "SETUP" message of step S211 described above. Information may be included.

The T-UE 104 sends a "CALL CONFIRMED" message containing information about the services supported by the T-UE 104 and a preferred service for the "SETUP" message sent from the T-MSC 103. -Transmit to MSC 103 (S215). In this case, in FIG. 2, an example in which the O-UE 101 and the T-UE 104 support the same services and prefer the same service will be described. Accordingly, the T-UE 104 also supports a multimedia call service and a voice call service, and it can be understood that the multimedia call service is preferred.

On the other hand, the service information included in the "CALL CONFIRMED" message of step S215 described above may be understood that the user of the T-UE 104 has been set in advance. In other words, the user of the T-UE 104 checks the services supported by the T-UE 104 and sets a preferred service among the supported services in advance. When making a call, the call can be connected to a preset preferred service.

The T-MSC 103 transmits an "APM (Application transport Message)" message to the O-MSC 102 based on the "CALL CONFIRMED" message transmitted from the T-UE 104 (S216). In this case, in FIG. 2, since the T-UE 104 also supports a multimedia call service and a voice call service and prefers a multimedia call service, mm, which is codec information for the multimedia call service, is selected in the "APM" message, and then AMR is selected. Information may be included in the future.

The O-MSC 102 transmits a "CALL PROCEEDING" message to the O-UE 101 based on the transmitted "APM" message (S217). At this time, the "CALL PROCEEDING" message transmitted to the O-UE 101 may include information on services supported by the T-UE 104 and preferred services. In FIG. 2, the O-UE 101 is described. ) And T-UE 104 support the same services and prefer the same service (Normal Case), for example, but the service information included in the "CALL PROCEEDING" message supports the same services, but different A service may be preferred (reverse case) or only one of a plurality of services may be supported (fallback case). In addition to the above-described normal case, reverse case, and fallback case, a case in which the T-UE 104 does not support a SCUDIF call (not support SCUDIF case) may occur. In this case, when supporting the same services but switching to another service, the switching is performed through a service switching process to be described later.

After receiving the "CALL PROCEEDING" message, the O-UE 101 performs a radio resource allocation procedure for service connection between the O-UE 101 and the T-UE 104 (S118), and the O-MSC ( 102 transmits a " COT (Continuity Message) " message indicating the radio resource allocation to the T-MSC 103 (S219).

The T-MSC 103 performs a radio resource allocation procedure with the T-UE 104 (S220), and the T-UE 104 sends an "ALERTING" message to the T-MSC 103 indicating that the called user has been notified. In step S221, the T-MSC 103 transmits an "ACM (Address Complete Message)" message to the O-MSC 102 in response to the "COT" message in step S119 described above (S222). The MSC 102 transmits an "ALERTING" message to the O-UE 101 (S223). At this time, after the "ALERTING" message is transmitted in step S121 described above, the T-UE 104 is displayed on the output indicating that the ringing, vibration or call request.

In an embodiment of the present invention, when a user of the T-UE 104 makes a voice call or a multimedia call of the O-UE 104, the call to be received may be dynamically selected. For example, if there is a predetermined call request to the T-UE 104, the output screen of the T-UE 104 may select a call mode for the call to receive. For example, a call mode for a call may be divided into a voice preference mode, a multimedia preference mode, a voice only mode, and a multimedia only mode. Here, the voice preference mode refers to providing both a voice call service and a multimedia call service but providing a voice call service first. The multimedia preference mode provides both a multimedia call service and a voice call service, but provides a multimedia call service first. I say that. Voice only mode refers to providing only voice call service, and multimedia only mode refers to providing only multimedia call service. Here, the voice preference mode and the multimedia preference mode may be a service change, which is all switching between the voice mode and the multimedia mode after opening a call. However, in the voice-only mode and the multimedia-only mode, a fallback occurs, and radio resources are allocated to voice-only or multimedia-only, respectively, so that the call mode cannot be changed by the subsequent service switching. In this case, the voice mode refers to a state in which a voice call service is provided, and the multimedia mode refers to a state in which a multimedia call service is provided. Here, the fallback means that only one of a voice call or a multimedia call is selected to be provided by the service.

For example, if the user of the T-UE 104 selects the multimedia (MM) preferred mode as shown in FIG. 2 (S240), the T-UE 104 and the T-MSC 103 enter the multimedia mode. The radio resource is already allocated so that the service can be provided immediately without allocating a new radio resource. At this time, the T-UE 104 transmits a "CONNECT" message to the T-MSC 103 (S224), and the T-MSC 103 sends an "ANM (Answer Messgae)" message to the O-MSC 102. By transmitting (S225), when the "CONNECT" message is transmitted from the O-MSC 102 to the O-UE 101 (S226), the services of the O-UE 101 and the T-UE 104 are connected. The call is possible.

Therefore, when a call path is connected between the O-UE 101 and the T-UE 104, the multimedia call service may proceed, and a service change may be possible (S250).

3 is a flowchart of a method for dynamically selecting a voice or multimedia call in the mobile communication system of FIG. 1 described above. In FIG. 3, as in FIG. 2, a case of a SCUDIF call processing procedure in a mobile communication system will be described as an example.

Referring to FIG. 3, the O-UE 101 requests a call in a multimedia preference mode, and the T-UE 104 selects and responds to a voice preference mode. The call request of the O-UE 101 and the response of the T-UE 104 may be similarly applied to steps S211 to S226 of FIG. 2.

In FIG. 3, the user of the T-UE 104 selects a voice preference mode (S300). For example, the video preference mode is specified according to the internal setting of the T-UE 104, so that radio resources of the multimedia mode are already allocated between the O-UE 101 and the O-MSC 102. (S218), a radio resource of the multimedia mode is also allocated between the T-UE 104 and the T-MSC 103 (S220).

Therefore, when the user of the T-UE 104 selects the voice preference mode after the radio resource allocation is terminated, a multimedia call service is temporarily provided by first establishing a call path in the multimedia mode (S250). At the same time, it is possible to automatically switch from the multimedia mode to the voice mode by service change (Service change) (S310 to S350). As such, the user of the T-UE 104 selects the voice preference mode, thereby performing service switching from the multimedia mode to the voice mode immediately after the multimedia call path is established, thereby satisfying the needs of the T-UE 104 user. You can. On the other hand, the service for the multimedia mode may be temporarily not recognized by the user of the O-UE 101 and the T-UE 104, or may be excluded from the billing target for only a short time.

Service switching performed due to the voice preference mode selection of the T-UE 104 may be performed according to the following steps. The T-UE 104 transmits a " MODIFY " message requesting service switching from the multimedia mode to the voice mode to the T-MSC 103 (S310), and allocates a radio resource corresponding to the service switching (S312). . Receiving the "MODIFY" message, the T-MSC 103 sends an "APM" message containing information indicating that the T-UE 104 wants to use the voice call service and that the multimedia call service is available later. 102) (S320). The O-MSC 102 transmits a "MODIFY" message to the O-UE 101 based on the transmitted "APM" message (S330). The O-UE 101 allocates radio resources for the voice call service with the O-MSC 102 (S337). The O-MSC 102 transmits an "APM" message to the T-MSC 103 informing that the radio resource for the voice call service is allocated (S340). The T-MSC 103 receives the "APM" message, and transmits a "MODIFY COMPLETE" message to the T-UE 104 indicating the completion of service switching (S345).

As such, when service switching is completed, a voice call path is formed between the O-UE 101 and the T-UE 104 to provide a voice call service in a voice mode (S350).

Meanwhile, based on FIGS. 2 and 3, when the internal setting of the T-UE 104 is different from the call mode input to the T-UE 104, the internal setting of the T-UE 104. After the call path is established, the T-UE 104 may switch to the call mode selected by the T-UE 104 user by requesting service switching to the call mode input to the T-MSC 103. .

As described above, according to an embodiment of the present invention, the T-UE 104 may dynamically select the multimedia mode and the voice mode with respect to the call request of the O-UE 101. Not only the call connection is made according to the internal setting of the T-UE 104, but the user of the T-UE 104 can select the preferred mode at the time of the call arrival, thereby increasing the call success rate and improving the user's request. Can be satisfied.

4 is a flowchart of a method for dynamically selecting a voice or multimedia call according to another embodiment of the present invention.

Referring to FIG. 4, in response to a call request of a predetermined mode of the O-UE 101, a voice mode or a multimedia mode is dynamically changed on the assumption that the T-UE 101 responds to the call request of a predetermined mode in the same mode. Let's look at the choices. Here, the predetermined mode may be divided into a multimedia preference mode, a voice preference mode, a multimedia only mode, and a voice only mode in the above-described embodiment.

First, the O-UE 101 transmits a "SETUP" message for setting up a SCUDIF call to the O-MSC 102 (S411). The O-MSC 102 transmits an "IAM" message to the T-MSC 103 based on the received "SETUP" message from the O-UE 101 (S412).

When the T-MSC 103 receives the " IAM " message from the O-MSC 102, the T-MSC 103, i.e., the message transmitter 103b, indicates that the T-UE 104 is connected to the O-UE 101. On the assumption that the supporting services and the preferred services are the same, an "APM" message is transmitted to the O-MSC 102 (S413). The O-MSC 102 transmits a "CALL PROCEEDING" message to the O-UE 101 based on the transferred "APM" message (S414).

After receiving the "CALL PROCEEDING" message, the O-UE 101 performs a radio resource allocation procedure with the O-MSC 102 (S415), and the O-MSC 102 indicates a "COT ( Continuity Message) "message to the T-MSC 103 (S416). The T-MSC 103 sends an "ACM" message for the "COT" message to the O-MSC 102 (S417), and the O-MSC 102 sends an "ACM" delivered from the T-MSC 103. The "CALL PROGRESS" message for the message is delivered to the O-UE 101 (S418).

The T-MSC 103 performs a paging procedure with the T-UE 104 (S419), and provides a ringback tone to the O-UE 101 (S420). Accordingly, the O-UE 101 may be provided with a ringback tone in a short time without undergoing the call setup process and the radio resource allocation process of the T-UE 104. After the ringback tone is provided to the O-UE 101, the T-MSC 103 and the T-UE 104 perform a SCUDIF call setup process and a radio resource allocation process.

After the ringback tone is provided to the O-UE 101, the T-MSC 103 transmits a "SETUP" message for setting up the SCUDIF call based on the "IAM" message transmitted in step S412 described above. (S421).

The T-UE 104 transmits a "CALL CONFIRMED" message for the "SETUP" message of step S421 described above to the T-MSC 103 (S424), and performs a radio resource allocation procedure with the T-MSC 103. It is made (S430). At this time, the "CALL CONFIRMED" message may include information on the designated mode according to the internal setting of the T-UE 104. For example, as shown in FIG. 4, the T-UE 104 may include a “CALL CONFIRMED” message in response to the internal configuration in the multimedia preference mode.

The T-MSC 103 performs a radio resource allocation procedure with the T-UE 104, and then transmits an "ALERTING" message indicating this to the T-MSC 103 (S431), and the T-MSC 103 The "CPG" message is transmitted to the O-MSC 102 based on the "ALERTING" message (S432), and the O-MSC 102 transmits the "ALERTING" message to the O-UE 101 ( S433). At this time, after the "ALERTING" message is transmitted in step S431 described above, the T-UE 104 is displayed on the output to indicate that the ringing, vibration or call request.

At this time, the user of the T-UE 104 may select the call mode for the call that he / she wants by looking at the output of the T-UE 104. For example, FIG. 4 describes a case of selecting a "multimedia preference mode", and FIG. 5 to be described below will describe a case of selecting "voice preference mode".

As shown in FIG. 4, when the user of the T-UE 104 selects the multimedia (MM) preferred mode (S450), a radio resource in the multimedia mode is allocated between the T-UE 104 and the T-MSC 103. Already assigned, service can be provided immediately. At this time, the T-UE 104 transmits a "CONNECT" message to the T-MSC 103 (S434), and the T-MSC 103 sends an "Answer Messgae" (ANM) message to the O-MSC 102. By transmitting (S435), when the "CONNECT" message is transmitted from the O-MSC 102 to the O-UE 101 (S436), the multimedia call path is established between the O-UE 101 and the T-UE 104. In connection, a multimedia call service is provided. On the other hand, in the state where the multimedia call service is provided, the service change (Service change) to the voice mode is possible (S460).

5 is a flowchart of a method for dynamically selecting a voice or multimedia call according to another embodiment of the present invention. Referring to FIG. 5, steps S411 to S460 are the same as in FIG. 4, and thus detailed descriptions thereof will be omitted. However, when the user of the T-UE 104 selects the voice preference mode (S500), the O-UE 101 is in a case where a collision occurs with the case where the multimedia preference mode is selected.

Referring back to FIG. 5, while providing a fast ringback tone, a radio resource of a multimedia mode is already allocated between the O-UE 101 and the O-MSC 102 (S415), and the T-UE 104 and T are provided. The radio resource of the multimedia mode is also allocated between the MSCs 103 (S430).

Therefore, when the user of the T-UE 104 selects the voice preference mode after the radio resource allocation is terminated, a multimedia call service is temporarily provided by first establishing a call path in the multimedia mode (S460). In addition, it is possible to switch from the multimedia mode to the voice mode automatically by a service change immediately after the call path is opened (S310 to S350). Therefore, the user of the O-UE 104 can easily select his or her preferred call mode and process the call mode selected by the user of the O-UE 104 internally within the network, thereby making it possible for the user of the T-UE 104 user. Can meet your needs. Steps S310 to S350 for service switching have been described later in FIG. 3 and will be omitted herein.

As described above, in the case of requesting an unwanted multimedia call or voice call service from the position of the called party who received the call request from the O-UE 101, the call success rate can be increased by selecting a predetermined call mode. At the same time, the called party can actively convert the call to increase customer satisfaction.

6 is a block diagram of an apparatus for dynamically selecting a voice or multimedia call according to another embodiment of the present invention. Referring to FIG. 6, an apparatus for dynamically selecting a voice or multimedia call according to another embodiment of the present invention may include a message receiver 610, a message transmitter 620, an output unit 630, and a dynamic selection processor 640. It may include. An apparatus for dynamically selecting a voice or multimedia call in FIG. 6 will be described as an example included in the T-UE 104. However, the apparatus for dynamically selecting a voice or multimedia call may be configured separately.

The message receiving unit 610 receives a "SETUP" message for setting up a SCUDIF call from the T-MSC 103. In addition, the message receiving unit 610 receives a service switch complete (MODIFY COMPLETE) message when the service switch is performed.

The message transmitter 620 transmits a "CALL CONFIRMED" message to the T-MSC 103 including information on services supported by the T-UE 104 and a preferred service. In addition, the message transmitter 620 transmits a "MODIFY" message to the T-MSC 103 requesting service switching according to the call mode input to the T-UE 104. In addition, the message transmitter 620 transmits an "ALERTING" message indicating the radio resource allocation to the T-MSC 103. When the user presses a call button or a mode selection button, the message transmitter 620 sends a "CONNECT" message to the T-MSC 103. Send.

The output unit 630 serves to display a screen for selecting each mode so that the user of the T-UE 104 can make all the selections. The output unit 630 displays a state of the T-UE 104 or a background screen.

The dynamic selection processing unit 630 receives a call request from the O-UE 101 and receives a predetermined call mode from a user. When the user recognizes that there is a call request by ringing or vibrating, the user of the T-UE 104 is provided with a predetermined call mode that can be selected through the output unit 630, and an input for selecting one of them. can do. The dynamic selection processor 630 may receive a mode selected by the user and determine whether to newly allocate a radio resource. The dynamic selection processing unit 630 requests the T-MSC 103 to establish a call path between the O-UE 101 and the T-UE 104 based on the call mode input to the T-UE 104. Can be.

For example, when the O-UE 101 makes a call request in the multimedia preference mode and the user of the T-UE 101 selects the multimedia preference mode, the O-UE 101 and the T-UE 101 are selected. Since the modes match, the dynamic selection processing unit 630 immediately connects the call by the message "CONNECT" to receive the multimedia call service.

As another example, when the O-UE 101 makes a call request in the multimedia preference mode and the user of the T-UE 101 selects the voice preference mode, the O-UE 101 and the T-UE 101 are selected. Since the modes do not match, the dynamic selection processor 630 sets a radio resource for the voice call path so that the voice preference mode is provided. When the radio resource setting for the multimedia mode has already been made, the dynamic selection processing unit 630 immediately transmits a "MODIFY" message of service switching to the T-MSC 103 immediately after connecting to the multimedia mode to perform the service switching process. To perform.

As described above, according to an embodiment of the present invention, by allowing the called party to select a predetermined call mode for a voice or multimedia call request, the call success rate can be increased, and the called party can be selected by selecting the voice or multimedia mode according to the decision of the called party. The call can be selected dynamically, depending on the situation or choice of the call.

In one embodiment of the present invention, although described based on a call request from the O-UE 101, it is obvious that the same applies to the call request from the T-UE 104. Even in the case of a call request from the T-UE 104, the user of the O-UE 101 selects a predetermined call mode, so that the called party can dynamically select a voice or multimedia call.

On the other hand, the components or '~' used in this embodiment is software such as tasks, classes, subroutines, processes, objects, execution threads, programs, or FPGAs (field-) that are performed in a predetermined area on the memory. It may be implemented in hardware such as a programmable gate array or an application-specific integrated circuit (ASIC), or may be a combination of the software and hardware. The component or 'unit' may be included in a computer readable storage medium, or a part of the components may be distributed and distributed to a plurality of computers.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains have various permutations and modifications without departing from the spirit or essential features of the present invention. It is to be understood that the present invention may be practiced in other specific forms, since modifications may be made. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1 is a block diagram illustrating a mobile communication system according to an embodiment of the present invention.

2 is a flowchart of a method for dynamically selecting a voice or multimedia call in the mobile communication system of FIG. 1 described above.

3 is a flowchart of a method for dynamically selecting a voice or multimedia call in the mobile communication system of FIG. 1 described above.

4 is a flowchart of a method for dynamically selecting a voice or multimedia call according to another embodiment of the present invention.

5 is a flowchart of a method for dynamically selecting a voice or multimedia call according to another embodiment of the present invention.

6 is a block diagram of an apparatus for dynamically selecting a voice or multimedia call according to another embodiment of the present invention.

Description of the main parts of the drawing

102: outgoing exchange

103: incoming exchange

610: message receiving unit

620: message transmission unit

630: output unit

640: dynamic selection processing unit

Claims (15)

  1. A first switch receiving a call request from the first user terminal in a predetermined call mode; And
    A second exchanger configured to transmit the call request message from the first user terminal to a second user terminal which is a call destination;
    And the second user terminal receives a desired call mode from a user and dynamically establishes a call path according to the call mode input between the first user terminals.
  2. The method of claim 1, wherein the call mode is
    One of the multimedia preference mode, voice preference mode, multimedia only mode, and voice only mode.
    The multimedia preference mode and the multimedia dedicated mode are multimedia modes for providing a multimedia call service.
    Wherein the voice preference mode and the voice only mode are voice modes for providing a voice call service.
  3. The method of claim 1, wherein the second user terminal
    When the call mode for the call request of the first user terminal and the call mode input to the second user terminal are different, the first user terminal and the first user based on the call mode input to the second user terminal. 2. A system for dynamically selecting a voice or multimedia call, comprising a dynamic selection processor for requesting to establish a call path between user terminals.
  4. The method of claim 3, wherein the second user terminal is
    After a call path is established by allocating radio resources to a first user terminal and a second user terminal according to a call mode according to a call request of the first user terminal,
    And dynamically select a voice or multimedia call requesting the second exchange to switch the service according to the call mode input to the second user terminal.
  5. The method of claim 1, wherein the second user terminal
    If the internal setting of the second user terminal is different from the call mode input to the second user terminal, after the call path is established according to the internal setting of the second user terminal,
    A system for dynamically selecting a voice or multimedia call for requesting service switching according to a call mode input to the second user terminal to the second exchange.
  6. The method of claim 1, wherein the second user terminal
    A system for dynamically selecting a voice or multimedia call comprising an output for providing a screen for selecting a predetermined call mode.
  7. The method of claim 1, wherein the second exchanger
    Providing a ringback tone to the first user terminal according to a call mode requested by the first user terminal before transmitting a call request message (SETUP) to the second user terminal according to the call request of the first user terminal. Or a system for dynamically selecting a multimedia call.
  8. A message receiving unit receiving a message indicating that there is a call attempt request in a predetermined call mode from a first user terminal;
    A dynamic selection processing unit which receives and processes a desired call mode from a user; And
    And a message transmitter for requesting an exchange to open a call in accordance with the input call mode.
  9. The method of claim 8, wherein the dynamic selection processing unit
    When the call mode requested from the first user terminal and the call mode input from the user are different from each other,
    And after a call path is established according to a call mode at the time of a call request of the first user terminal, requesting service switching according to the input call mode.
  10. The method of claim 8, wherein the dynamic selection processing unit
    A device for dynamically selecting a voice or multimedia call for requesting service switching according to the input call mode to the exchange after the call path is established according to the internal setting if the internal setting is different from the input call mode. .
  11. Receiving a call request from a first user terminal in a predetermined call mode;
    Receiving a call mode with the first user terminal from a user of the second user terminal; And
    Requesting establishment of a call path between the first user terminal and the second user terminal according to the input call mode.
  12. The method of claim 11,
    And after the call path is established according to the call mode at the time of the call request of the first user terminal, requesting service switching according to the input call mode.
  13. The method of claim 11,
    If the internal setting of the second user terminal is different from the input call mode, after the communication path is established according to the internal setting of the second user terminal, requesting service switching according to the input call mode to the teacher. And dynamically selecting a voice or multimedia call.
  14. The method of claim 11, wherein the step of receiving the call mode
    And a method of dynamically selecting a voice or multimedia call after transmitting one of a ring tone, vibration, or indication to the exchange informing that there is a call request from the first user terminal.
  15. 15. The method of claim 14, wherein requesting to open the currency path comprises:
    And after the establishment of a predetermined call after inputting the call mode, requesting service switching when the input call mode is different from the established call mode, dynamically selecting a voice or multimedia call. Way.
KR1020090003047A 2009-01-14 2009-01-14 Apparatus, system and method for sellecting speech or multimedia call in mobile communication system KR20100083588A (en)

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KR100794508B1 (en) * 2001-10-26 2008-01-16 엘지전자 주식회사 Speech mode selecting method for video phone
KR100651408B1 (en) * 2004-03-30 2006-11-29 삼성전자주식회사 Announcement method for multimedia telephony using fallback between speech mode and data mode
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US7953399B2 (en) * 2005-02-28 2011-05-31 Nokia Corporation Network-initiated service change from speech to multimedia

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