KR20070003244A - Method of mobile station's ims capability check and ims application service at voice call for universal mobile telecommunications systems - Google Patents

Abstract

A capability confirmation and service connection method of another terminal during a call in a UMTS(Universal Mobile Telecommunications System) is provided to enable a user to check the other party's mobile communication terminal by using an SMS(Short Message Service) bearer, in order to check whether the other party's terminal is able to use an IMS(IP Multimedia Subsystem) application while the user talks over the phone with the other party. When a UE(User Equipment) 1 is powered on, the UE 1 obtains a system for connecting a circuit call by accessing a node B, and becomes in idle state after registering in a mobile communication network(S70,S72). The UE 1 opens a packet circuit call to perform an IMS application, is assigned with a packet channel, and finishes a registration procedure of a self IP(Internet Protocol) and a self SIP(Session Initiation Protocol) URI(Uniform Resource Identifier) in an IMS application service server, then a mobile communication network finishes use registration of an IMS application service by completing assignment of the packet channel(S74-S78).

Description

Method of mobile station's IMS capability check and IMS application service at voice call for Universal Mobile Telecommunications Systems in UTM mobile communication system

1 is a flowchart illustrating an operation of checking whether a user can perform an IMS application service by a UMTS terminal of a counterpart during a voice call with a counterpart in a conventional UMTS terminal,

2 is a block diagram of a UMTS mobile communication system according to the present invention;

3 is a flowchart illustrating a method of checking the performance of a counterpart terminal during a call in the UMTS mobile communication system of the present invention.

<Description of Major Symbols in Drawing>

50, 52: UMTS terminal 54: Node-B

56: RNC

The present invention checks the performance of the other party's mobile terminal in the UMTS mobile communication system. In particular, when the user is talking to the other party through the mobile terminal, the mobile terminal of the other party is an IMS (IP Multimedia) such as 1: 1 game or network game. Subsystem) The present invention relates to a method for checking the performance of a counterpart terminal during a call in a UMTS mobile communication system for identifying a counterpart mobile terminal using a short message service bearer (SMS).

Universal mobile telecommunications systems (UMTS) mobile communication systems are generally long-term initiatives of the European Telecommunications Standards Institute (ETSI). They include cellular telecommunications, cordless telephones (CT), telepoints, wireless LANs, and wireless calling. It is an integrated mobile communication system that combines all kinds of mobile communication. The concept of this system is to limit the data transmission speed according to the user's location, environment and system capacity, and to provide the same kind of service without any limitation in place. The goal is to develop a general-purpose mobile communication system that combines new technologies such as code division multiple access (CDMA) and multimedia, realizes a mixed cell structure, and provides a transmission rate of up to 2Mbps. In addition, bearer services (bearer services) is a service that provides a means for delivering information, such as voice, audio data, video, etc. in real time without changing the content between the user-network interface.

Hereinafter, a method of confirming the performance of the other party's UMTS terminal during a call in the conventional UMTS mobile communication system will be described with reference to FIG. 1.

FIG. 1 is a flowchart illustrating an operation of checking whether a user can perform IMS application service and whether or not a user can perform IMS application service during a voice call with a user equipment (UE).

When the user transmits a call signal to the UE terminal 1 (10), the voice call is connected to the UE terminal 2 (14) of the other party through the Node-B, the UMTS mobile communication system 12, the controller and the exchange (S20).

IMS (IP Multimedia Subsystem) application services include 1: 1 games, network games, multimedia services, TV services, and the like.

In order to provide a parallel service of an IP Multimedia Subsystem (IMS) application to a conventional UE terminal during a circuit switched voice call with a counterpart, a mobile communication terminal of the other party first performs an IP Multimedia Subsystem (IMS) application service. You should find out if the terminal can be used.

When a user's UE terminal 1 (10) is connected to a circuit call, the UMTS mobile communication system 12 allocates a packet channel to both terminals, and firstly, Session Initiation Protocol (SIP) OPTIONS in the user's UE terminal 1 (10). Is transmitted to the UE terminal 2 (14) of the other party (S22 to S24).

Session Initiation Protocol (SIP) OPTIONS can take advantage of the small amount of network signaling and resources.

When UE terminal 2 14 receives a Session Initiation Protocol (SIP) OPTIONS, its own terminal transmits information on whether the IMS application service is available to UE terminal 1 (10) of the user (S26).

Similarly, when UE terminal 2 (14) requests a packet channel allocated to UE terminal 1 (10) of user by Session Initiation Protocol (SIP) OPTIONS method, UE terminal 1 (10) uses IP Multimedia Subsystem (IMS) application service. The availability and the registration information are transmitted to the UE terminal 2 14 of the user (S28 to S30).

When the performance information is exchanged with each other, the UMTS mobile communication system 12 releases and returns the packet channel allocated to both terminals (S32).

On the other hand, when one terminal does not provide IMS application information, it is determined that the terminal does not provide the IMS application service.

At this time, when both sides can utilize the IMS application service, the icon on the terminals 10 and 14 may operate to inform the connection of the IMS application service, and the user and the other party may play the IMS application service. .

As described above, in the conventional UMTS mobile communication system, in order to perform capability exchange of a UE terminal of a counterpart during a call, a packet traffic channel is allocated and a Session Initiation Protocol (SIP) OPTION method is used. Check whether the UE terminals 1,2 (10, 14) of the user and the counterpart support the IMS application service.

If both terminals can use the IMS application service, the icons on both sides of the device are notified by operating the icon and 1: 1 game at both times. Connect IMS application services such as network games and multimedia services.

In order to determine whether the other party's terminal is available during the line voice call to the mobile communication terminal, a SIP (Session Initiation Protocol) OPTIONS method should be used and a separate packet traffic channel should be allocated.

In addition, even though the traffic channel is used to determine whether the other party's mobile terminal supports the IMS application service, the user and the receiver may not use the IMS application service until the end of the voice. There is a problem in that resources of the mobile communication system such as allocation and return of a packet traffic channel are wasted.

Disclosure of Invention The present invention is to solve the above-mentioned problem, and it is possible to signal the availability of a counterpart's IMS application service and registration information by signaling using an SMS bearer service without allocating a separate physical channel during a line voice call to a UE terminal. The purpose of the present invention is to provide a method for verifying performance of a counterpart terminal during a call in a UMTS mobile communication system using IMS application services.

In addition, the present invention not only performs the capability exchange and negotiation of the IMS application by using the SMS bearer service during the circuit call, but also can be applied in a situation other than the circuit call. An object of the present invention is to provide a method for checking the performance of a counterpart terminal during a call in a communication system.

In the UE mobile communication system of the present invention, the method of checking the performance of the other party's terminal during a call and connecting a service includes transmitting a voice call from the UE terminal 1 to the terminal connected to the UE terminal 2 and using the short message during the call. A first step of transmitting and receiving, a second step of exchanging performance information between the UE terminal 1 and the UE terminal 2, and checking whether the IMS application service is available, and a third step of operating an icon or the like in the UE terminal 1 and the UE terminal 2; If the UE terminal 1 and the UE terminal 2 selects the use of the IMS application service, step 4 of connecting the selected IMS application service in the UMTS network, and the UE terminal 1 and the UE terminal 2 mutually using the IMS application service, etc. And after finishing the use, characterized in that it comprises a five steps to terminate the IMS application.

In addition, the first step of the present invention, the UE terminal 1 of the user using the SMS bearer (bearer) service bears a short message to the IMS application-related information and media information signaled and transmitted to the UE terminal 2 of the other party, And transmitting the IMS application related information and the media information to the UE terminal 1 of the user in a short message by using the SMS bearer service.

Further, in the first step of the present invention, the performance information is transmitted in a short message or a long message without allocating a separate channel between the UE terminal 1 and the UE terminal 2, and the short message or the long message is a SIP option (OPTIONS) method. It characterized in that it comprises transmitting and receiving each other through.

In addition, in the first step of the present invention, in order to use the IMS application service between the UE terminal 1 and the UE terminal 2, the IP information and SIP URI information are included in the IMS application server.

In addition, the fourth step of the present invention is the step of connecting a packet service call in the UMTS network and allocating a packet channel, the UE terminal 1 and the UE terminal 2 using the IMS application service selected with each other as the assigned packet channel, etc. And terminating the IMS application after completing the use, releasing the connection of the packet service call in the UMTS network, and releasing the allocation of the packet channel.

Hereinafter, a method for checking the performance of a counterpart terminal during a call in the UMTS mobile communication system of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of the UMTS mobile communication system of the present invention, Figure 3 is a registration flow chart for the use of the IMS application, Figure 4 is a method of verifying the performance of the other party terminal during the call in the UMTS mobile communication system of the present invention 5 is a flowchart illustrating an operation of using an IMS application service between a user and a counterpart during a call.

The UMTS mobile communication system is a third generation wireless communication system that provides integrated data services such as voice, modem, and fax as well as multimedia at high speed.

The service can be divided into voice and data service. The standard for voice service with external network in UMTS network is defined in 3GPP TS 25.415, and the standard for data service with external network is defined in 3GPP TR 23.910. .

The UMTS network is a third generation mobile communication network that is divided into a CS (Circuit Switch domain) area for processing data with PSTN / ISDN and a PS area (Packet Switch domain) for processing IP data for providing wireless Internet or IMS application service. do.

In Fig. 2, the Node-B 54 communicating with the UE terminals 1 and 2 (50, 52) via the Uu interface, and the Node-B 54 are controlled, and the user controls the Internet with the UE terminals 1 and 2 (50, 52). In case of selecting packet service for IMS application service, it is connected to SGSN (60) of GPRS network through Iu interface, and when user selects circuit service, it is connected to MSC (58). An RNC 56 is shown which allows communication with public networks (PLMN, PSDN) and the receiver's mobile communication terminal.

In addition, FIG. 2 is connected to the RNC 56 and constitutes a GPRS network, which is connected to the SGSN 60 and the SGSN 60 to efficiently transmit high-speed and low-speed packet data and signals. A GGSN 62 is shown that matches other packet-switched networks and acts as a gateway.

IMS application service is a multimedia service that uses TV, game, Go, and video related services to UMTS terminal.

According to the present invention, after the voice call is connected to the UE terminal 1 (50) of the user, the performance of the UE terminal 2 (52) of the other party can be determined and registered so as to utilize IMS application services such as a game and a game, as well as a call. Check the information by SMS message and, if possible, connect the IMS application service during the call.

To this end, the present invention does not allocate and return a separate packet traffic channel as in the related art, and transmits and receives performance exchange and registration information of a corresponding terminal during a call using an SMS bearer service during a voice call.

3 is a registration flow chart for use of an IMS application, when UE terminal 1 50 is powered on, UE terminal 1 50 accesses Node B 54 to obtain a system for connection of a circuit call. Then, the terminal enters the idle state after registering the terminal in the mobile communication network (S70 to S72).

 When UE terminal 1 (50) is registered in the mobile communication network, it opens a packet circuit call to perform an IMS application, receives a packet channel, and transmits its own UE terminal 1 (50) to the IMS application service server. After completing the registration procedure of the IP and its SIP URI, the mobile communication network terminates the allocation of the packet channel and finishes the use registration of the IMS application service (S74 to S78).

3, the terminal registers its IP and its SIP URI with the IMS application server in order to start the IMS service, and the preparation work for executing the IMS application is completed.

4 is a flowchart illustrating a method of checking the performance of a counterpart terminal during a call in the UMTS mobile communication system of the present invention.

First, a user makes a voice call request to UE terminal 1 50 and a call is connected to UE terminal 2 52 of the other party (S80).

When the circuit call is connected, first, the UE terminal 1 50 of the user uses the SMS bearer service to describe the IMS application-related information and media information in an SDP message without signaling any additional channel allocation and to signal the SDP. The UE transmits the data to the UE terminal 2 52 of the counterpart via the UMTS mobile communication system (IMS network) (S82).

The IMS application related information and the media information transmitted by the UE terminal 1 50 in the SMS message using the SMS bearer service may be configured in various other formats.

In addition, the UE terminal 2 (52) of the other party also uses the SMS bearer service to describe the IMS application-related information and media information in the SDP as an SMS message without assigning an additional channel, and the user's UE via the UMTS mobile communication system. The terminal 1 transmits to the terminal 1 50 (S84).

UE terminal 1,2 (50, 52) checks the received IMS application-related information and media information, and if the IMS application service is available to each other, the icon and the like to operate so that the user and the other party can know whether the service do.

In the present invention, the SMS message or the long message is used and the message is transmitted and received through the SIP OPTIONS method, not the SIP message, without the circuit channel being allocated for the performance check in both terminal periods.

In this case, when the IMS application related information is not received from the UE terminal 2 52 of the counterpart, the UE terminal 2 52 determines that the terminal cannot use the IMS application service.

As described above, when the voice call is connected to each other, the present invention describes the currently supported IMS application information and media information in the SMS message and sends it to the terminal of the counterpart.

After receiving the SMS message, the other party's terminal describes the currently supported IMS application information and media information in SDP and transmits it to the user's terminal.

Both terminals analyze the received SMS message and inform each other by operating an icon or the like to determine whether each terminal supports the corresponding IMS application, and use the IMS application service by selecting an IMS connection menu if a connection is desired.

5 is a flowchart illustrating an operation of using an IMS application service between a user and a counterpart of the present invention during a call.

The UE terminal 1 50 transmits or receives a voice call and is connected to the UE terminal 2 52 by a caller (S90 to S92).

Both terminals check whether the IMS application can be performed using an SMS message as shown in FIG. 4 (S94).

In this case, SMS messages or long messages are used without a circuit channel assignment to check the performance between terminals. Also, messages sent and received are transmitted only through the SIP OPTIONS method, not SIP messages.

After the performance exchange between the UE terminal 1 (50) and the UE terminal 2 (52), if the IMS service is not available to each other, the voice call is made and ends (S96 to S98).

However, after the performance exchange between the UE terminal 1 (50) and the UE terminal 2 (52), if the IMS application service is available, the icon is operated in the terminal to inform the user to know.

When both terminals select to use the IMS application service, the packet service is allocated by connecting a packet service call in the UMTS network (S100 to S102).

UE terminal 1 (50) and UE terminal 2 (52) are connected to the packet service (Packet service) call to perform the IMS application service with each other, and ends the IMS application after the use of each other service (S104 ~ S106).

When the use of the IMS application is finished, the connection of the packet call is released from the UMTS network, and the allocation of the packet channel is terminated (S108).

In the case of the CSI (combination of CS and IMS Service), the IMS application is simultaneously made with the circuit switch, so when the circuit connection is completed, the other party is currently talking to the user by exchanging the capabilities of each other's IMS application. It will tell you if it can connect to the CSI application service.

Then, upon request of the user or upon arrival of an IMS call to the IMS application from the other side, the packet call (PS) call is opened again and a packet channel is allocated to connect the IMS application.

The user and the other party can access IMS application services such as Go, network games, and 1: 1 games during the call and use the services according to the provided method.

The present invention not only performs the capability exchange of the IMS application using the SMS bearer service during the circuit call, but can also be applied in a situation other than the circuit call.

According to the present invention, it is efficient not to connect a packet service call or to allocate radio resources separately only to check whether a user uses an IMS application service.

The present invention uses an SMS bearer without connecting an additional packet traffic channel for a capability exchange related to an IMS application after connecting a traffic channel for voice call connection. This effectively uses the physical channel. Since no allocation and return process for an additional packet traffic channel is required, no traffic is wasted, and the channel is saved, which can accommodate more subscribers.

In addition, the present invention can be applied to a capability exchange method of an IMS application using an SMS bearer in a situation other than a circuit switched voice call.

Claims (5)

A first step of transmitting a voice call from the UE terminal 1 to be connected to the UE terminal 2 by using a short message to transmit and receive performance information during a call; Exchanging capability information between the UE terminal 1 and the UE terminal 2, and then confirming whether an IMS application service is available; An operation of informing an icon or the like in the UE terminal 1 and the UE terminal 2; Connecting the IMS application service selected in a UMTS network when the UE terminal 1 and the UE terminal 2 select use of an IMS application service; The UE terminal 1 and the UE terminal 2 using the IMS application service with each other, and comprises five steps of terminating the IMS application after finishing use, the mobile terminal in the UETS mobile communication system, characterized in that How to check performance and connect services. The method of claim 1, The first step, Signaling, by the UE terminal 1 of the user, an IMS application related information and media information in a short message using an SMS bearer service and transmitting the signal to the UE terminal 2 of the other party; And transmitting the IMS application related information and the media information to the UE terminal 1 of the user in a short message by using the SMS bearer service in the UE terminal 2 of the other party. How to check the performance of the other terminal and the connection method of the service. The method according to claim 1 or 2, In the step 1, the performance information is transmitted in a short message or a long message without allocating a separate channel between the UE terminal 1 and the UE terminal 2, and the short message or the long message is mutually transmitted through a SIP OPTIONS method. Method of connecting and checking the performance of the other party's terminal during a call in a UTM mobile communication system, characterized in that it comprises transmitting and receiving. The method according to claim 1 or 2, In the above step 1 In order to use the IMS application service between the UE terminal 1 and the UE terminal 2, the performance of the other party's terminal during a call in the UTM mobile communication system, comprising registering the IP information and the SIP URI information with the IMS application server. How to check and connect to service. The method of claim 1, The fourth step is Connecting a packet service call and assigning a packet channel in the UMTS network; The UE terminal 1 and the UE terminal 2 playing a game using an IMS application service selected with each other through an allocated packet channel, and terminating the IMS application after use; Disconnecting a packet service call from the UMTS network, and releasing an allocation of a packet channel.

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