KR20030083428A - Terminating Service System of 3GPP IMT-2000 Packet Network and System - Google Patents

Abstract

PURPOSE: A system for giving a receiving service of a 3GPP IMT-2000 packet network are a method therefor are provided to manage reception-related call processing and receiving information with a TCS(Traffic Congestion Control System), and to interwork with a session initiation protocol for a session processing function, thereby supplying reception under an SIP-based infrastructure environment. CONSTITUTION: A TCS(40) manages reception-related call processing and receiving information. PIs(Push Initiators)(50) supply receiving messages, and transmit the receiving messages to the TCS(40) through the Internet(60) with a user ID. An SIP server(30) receives the receiving messages from the TCS(40), and services the messages to receiving terminals(10) through an RNS(20) by using an SIP. The receiving terminals(10) receive the messages, and display the messages on screens.

Description

Terminating Service System of 3GPP IMT-2000 Packet Network and System

The present invention relates to a terminating service system and method for a 3GPP IMT-2000 packet network, and more particularly, to an implementation method and procedure for providing a SIP terminating service associated with a session establishment request by a network in a 3GPP IMT-2000 packet network. will be.

Voice service of the conventional telephone service is a method in which the voice subscribers call each other through the process of performing the incoming procedure in the network by pressing the phone number of the other party, and the data service is mainly connected to the Internet through the mobile communication terminal or mail to the other party It was an outgoing method of sending or sending.

However, as the desire to receive valuable information from time to time grows, incoming services are greatly increasing in data services.

Conventional data terminating service is generally paging to the terminating terminal using a Short Message Service (SMS) and taking information from a server with the specified data and showing it to the terminal.

That is, in the existing mobile communication environment, the incoming service generally used the WAP 1.2 Push function defined in the WAP (Wireless Application Protocol) forum.

If a session is not established, the Push Proxy Gateway (PPG) sends an SMS message to the destination terminal when the session is not established, and the destination terminal establishes a session and then directly to the server where the destination message exists. Connect to get the incoming message.

Therefore, it can be called a pull function, not a true push function, and only the outgoing charge can be made because the called terminal directly brings the incoming data. Also, in WAP 1.2 Push, the incoming data itself is a web page through the wireless connection. Using WML (Wireless Markup Language), a language that allows the text portion of the text to be displayed, it was forced to deliver only text-based messages.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to manage a call processing and incoming information related to an incoming call with a terminating control system (TCS) to establish a connection initiation protocol (SIP) and 3GPP TS. 23.060 To provide an incoming service system and method of 3GPP IMT-2000 packet network that can provide incoming call in SIP-based infrastructure environment by interworking session processing function for incoming call.

In addition, another object of the present invention is a 3GPP IMT-2000 packet network that can provide the incoming service to the destination terminal with the push function of the true meaning, the outgoing charge and incoming charge is possible, and can transmit not only text-based messages but also multimedia-based messages. To provide an incoming service system and method of the present invention.

In order to achieve the above object, the present invention provides an incoming call control system (TCS) for managing call processing and incoming call information related to incoming calls; A PI that provides an incoming message and delivers the incoming message to the incoming call control system through the Internet with a user ID capable of distinguishing the called terminal; A SIP server receiving an incoming message from the incoming control system using SIP and serving a called terminal through a radio network assistance system (RNS); The present invention provides an incoming service system of a 3GPP IMT-2000 packet network including a receiving terminal receiving an incoming message from the SIP server and displaying the same on a screen.

In order to achieve the above object, a first step of forwarding an incoming message from a PI to a terminating control system (TCS), and the TCS in the WCDMA IMT-2000 network node according to the incoming invoke message in 3GPP TS 23.060 A second step of performing a session establishment procedure according to a Network Requested PDP context Activation Procedure, a third step of registering an application layer through SIP of a called terminal, and completing a session establishment The present invention provides a method of terminating service in a 3GPP IMT-2000 packet network including a fourth step in which an incoming message is delivered according to a notification.

1 is a block diagram of an incoming service system according to the present invention.

2 to 7 are message flow diagrams of an incoming service method according to various embodiments of the present invention.

8 is a diagram illustrating a protocol stack of a terminating control system (TCS) according to the present invention.

9A to 9E are diagrams illustrating a message transfer protocol stack between a terminating control system (TCS) and other equipment.

<Description of Symbols for Main Parts of Drawings>

10: called terminal 20: RNS (Radio Network Subsystem)

30: SIP server 32: HLR (Home Location Register)

34: Short Message Service Center (SMSC)

36: Serving GPRS Support Node (SGSN)

38: GGSN (Gateway GSN) 40: TCS

50: PI (Push Initiator) 60: Internet

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

First, SIP will be described to help understand the present invention. In the 3rd Generation Partnership Project (3GPP), an external push management server delivers data to a called terminal after paging through a network node and establishing a session.

SIP (Session Initiation Protocol), which can be combined with WCDMA (Wideband CDMA) network and adds flexibility to data transfer, is a very simplified text-based application layer control protocol, which is simpler than multimedia information processing procedure using H.323. Process to perform functions.

In addition, by specifying media information through the Session Description Protocol (SDP) and providing capability information of a corresponding terminal, various services such as teleconference, instant messaging, and push service can be flexibly implemented.

In the present invention, the Push service is provided through interworking with the session establishment procedure for network reception of the SIP and the WCDMA (IMT-2000) network.

1 is a block diagram of an incoming service system according to the present invention.

As shown, an incoming call control system 40 (hereinafter referred to as 'TCS') for managing call processing and incoming information related to incoming calls; A PI (Push Initiator) for providing an incoming message and delivering an incoming message to the TCS 40 via the Internet 60 with a user ID that distinguishes the destination terminal 10; A SIP server 30 which receives the incoming message from the TCS 40 and services the called terminal 10 through the radio network auxiliary system 20 (RNS) using SIP; The receiving terminal 10 receiving the incoming message from the SIP server 30 and displaying it on the screen is basically configured.

In the present invention, the incoming service using the SIP associated with the session establishment is implemented by having a TCS (40) and through the TCS (40) call control, incoming message management, session management, incoming subscriber management.

The PI 50 or the content provider providing the incoming message transmits push information, that is, the incoming message to the TCS 40 through the Internet 60 with a user ID capable of distinguishing the destination terminal 10 (the Step 1 (S1)).

At this time, the incoming message uses PAP (Push Access Protocol), SMTP (Simple Mail Transfer Protocol), and HTTP (HyperText Transfer Protocol).

The PAP is used to deliver messages from the PI 50 to the PPG (TCS of the present invention) and to continuously deliver messages to narrowband devices such as cellular phones and pages.

The message includes, for example, event notifications such as news, stock prices, weather, traffic conditions, e-mail arrivals.

This push feature allows users to get and use information without having to request it.

The TCS 40 performs a session establishment procedure according to a Network Requested PDP context Activation Procedure in 3GPP TS 23.060 according to an incoming Invoke message in a WCDMA IMT-2000 network node ( Second step (S2)).

After the session establishment procedure is completed, the registration process of the application layer through the SIP of the called terminal 10 is performed (step S3).

That is, the destination terminal 10 registers with the SIP server 30 through a Register message, and the TCS 40 registers with the SIP server 30 through a Register message.

In response to the notification of the completion of the session establishment, the incoming message is delivered to the destination terminal 10 such as a PDA or a mobile communication terminal and displayed on the screen (S4).

There are two methods for delivering an incoming message to a called terminal using SIP and using SMS.

In addition, the case in which the Invite message is transmitted or not transmitted may be considered according to the incoming message type. If the incoming message is the multimedia type, the procedure is performed including the Invite message.

In FIG. 1, the Home Location Register (HLR) supports SGSN 36, which manages mobility of the called terminal 10 in a second step S2 of performing a 3GPP network request PDP context activation procedure. Node's address is found and responded, or the IP address managing the location of the destination terminal 10 finds an address and sends a response.

In the second step (S2) of performing a 3GPP network request PDP context activation procedure, the GGSN 38 receives a necessary information from the TCS 40 to the destination terminal 10 to manage the mobility of the SGSN 36. Request the inquiry to the HLR (34) to find the and sends the information required for the PDP context activation procedure to the corresponding SGSN (36).

The SGSN 36 performs a request PDP context activation procedure between the called terminal 10 and the GGSN 38 according to this information.

When the incoming message type is text and the text size does not exceed 80 bytes, the SMSC 34 receives a short message from the TCS 40 and manages the location of the called terminal 10 to the corresponding HLR 32. It sends a message requesting an IP address, receives a response, and delivers an incoming message to SGSN 36.

In the above configuration, the TCS 40 sets up an incoming session according to whether a session is established to provide a service for an incoming message, and the procedure is performed by the PDP context activation procedure and network request PDP of 3GPP TS 23.060. Context activation (Network Requested PDP context Activation) procedure.

The TCS 40 transmits the incoming message to the called terminal 10 through the monitoring of the session information in the session establishment procedure described above.

In addition, the TCS 40 performs a series of incoming procedures through SIP to provide a push function using the SIP, and delivers the incoming message to the SIP server 30.

In addition, the TCS 40 interworks with the HLR 32 according to the 3GPP standard, processes the incoming control procedure in conjunction with the SGSN 36, and processes the push message in conjunction with the PI 50 as well as the SMSC 34. Works with text to process text-based short messages.

In addition, the TCS 40 maps to a unique user ID and called terminal information on the Internet, and interlocks with a subscriber information DB according to an incoming message type, and filters the incoming message to the unsubscribed called terminal 10.

In addition, the TCS 40 authenticates the PI 50 that provides the incoming message, and authenticates the user to provide the Push terminal 10 and the Push service.

In addition, the TCS 40 transmits an incoming message according to the performance and capability of the called terminal 10 and stores data sent from the PI 50 and other devices.

The TCS 40 also processes and delivers multimedia (including streaming), still picture, text, and voice information.

Referring to Figures 2 to 7, the procedure for the incoming service system of the above-described configuration, Figure 2 shows that the incoming message is a text type, the session is established in the destination terminal according to the PDP context activation procedure in 3GPP TS 23.060, This is a message flow diagram when the destination terminal 10 and the TCS 40 are registered in the SIP server 30.

That is, a flowchart when the second step S2 and the third step S3 are completed.

In the state in which registration of the terminating terminal 10 to the SIP server 30 is completed by the procedures 201 and 202, the push message (incoming message) to the TCS 40 using the PAP in the PI 50 in the first step (S1). In step 203, the TCS 40 responds to the PI 50 for the incoming message (204) and stores the incoming data (205).

When the PI 50 transmits an incoming message to the TCS 40 through the Internet 60, an SMTP or HTTP protocol may be used instead of the PAP protocol.

In step 4 (S4), the TCS 40 looks at the incoming message type and if it is text, delivers the incoming message to the SIP server 30 without sending an Invite message to the SIP server 30 (206), and the SIP server. 30 transmits the incoming message to the called terminal 10 (207).

The destination terminal 10 transmits the incoming message result to the SIP server 30 (208), and the SIP server 30 again transmits the result to the TCS 40 (209).

If the incoming message result is OK, the TCS 40 deletes the stored incoming data (210), notifies the PI 50 of the success / failure result for the delivery of the incoming message (211), and the PI 50 The response to the notification is forwarded to the TCS 40 (212).

In this manner, the incoming message provided by the PI 50 is delivered to the called terminal 10 and displayed on the screen.

3 shows that the incoming message is a multimedia type and the session is established in the destination terminal 10 according to the PDP context activation procedure in 3GPP TS 23.060, and the destination terminal 10 and the TCS 40 are registered to the SIP server 30. This is the message flow diagram for this case.

That is, a flowchart when the second step S2 and the third step S3 are completed.

In the state in which registration of the terminating terminal 10 to the SIP server 30 is completed by the procedures 301 and 302, a push message (incoming message) to the TCS 40 using PAP in the PI 50 in the first step (S1). In step 303, the TCS 40 responds to the PI 50 for the incoming message (304) and stores the incoming data (305).

When the PI 50 transmits an incoming message to the TCS 40 through the Internet 60, an SMTP or HTTP protocol may be used instead of the PAP protocol.

In step 4 (S4), the TCS 40 sends an Invite message requesting information on the capability of the called terminal 10 to the SIP server 30 when the incoming message type is multimedia. The SIP server 30 transmits this invitation message to the called terminal 10 (307).

The terminating terminal 10 again responds to the SIP server 30 for the invitation message result (308), and the SIP server 30 forwards the result to the TCS 40 (309).

The TCS 40 sends an acknowledgment (Ack.) To the response to the SIP server 30 (310), the SIP server 30 transmits the acknowledgment to the destination terminal 10 (311).

When the processing of the invitation message is completed in this way, the TCS 40 transmits the multimedia message to the called terminal 10 (312).

In this case, when the incoming message is a streaming message among multimedia types, real-time delivery of the streaming message through the setting of Real-time Transfer Protocol (RTP) / RealTime Streaming Protocol (RTSP) between the destination terminal 10 and the TCS 40. This is possible.

When the delivery of the multimedia message is completed, the TCS 40 sends a Bye message to the SIP server 30 (313), the SIP server 30 delivers the Bye message to the destination terminal 10 (314).

The terminating terminal 10 again transmits the result of the incoming message (multimedia message) to the SIP server 30 (315), and the SIP server 30 again transmits the result to the TCS 40 (316).

The TCS 40 deletes the incoming data that has been stored (317), notifies the PI 50 of the success / failure result for the delivery of the incoming message (318), and the PI 50 sends a response to the notification to the TCS. Pass to 40 (319).

In this manner, the incoming message provided by the PI 50 is delivered to the called terminal 10 and displayed on the screen.

4 shows that the incoming message is a text type and the session is established in the destination terminal according to the PDP context activation procedure in 3GPP TS 23.060. The TCS 40 is registered in the SIP server 30, but the destination terminal 10 is registered. Message flow when not.

That is, it is a flowchart when the said 2nd step S2 is completed.

In the first step S1, when the PI 50 transmits a push message (incoming message) to the TCS 40 using PAP (401), the TCS 40 responds to the PI 50 with respect to the incoming message. (402) The incoming data is stored (403).

When the PI 50 transmits an incoming message to the TCS 40 through the Internet 60, an SMTP or HTTP protocol may be used instead of the PAP protocol.

The TCS 40 transmits the incoming message to the SIP server 30 without sending the Invite message to the SIP server 30 to perform the fourth step (S4) when the incoming message type is text. Since the called terminal 10 is not registered in the SIP server 30, the SIP server 30 transmits a 404 Not found message to the third step S3 without transmitting the incoming message to the called terminal 10. (405).

The TCS 40 forwards the Subscriber message to the SIP server 30 (406), and the SIP Server 30 forwards an Accepted message to the TCS 40 (407) and the TCS 40 receives the call. Wait for registration of the terminal 10.

The destination terminal 10 sends a registration message to the SIP server 30 (408), the SIP server 30 delivers an OK message for registration to the destination terminal 10 (409), the destination terminal 10 is the SIP server 30), the SIP server 30 notifies the TCS 40 that it has been registered (410) and the TCS 40 forwards the OK message to the SIP server 30 (411).

In step 404-411, the terminating terminal 10 completes the third step S3 registered with the SIP server 30.

In the fourth step (S4), the TCS 40 sees the incoming message type, and if it is text, delivers the incoming message to the SIP server 30 without sending an Invite message to the SIP server 30 (412), and the SIP server. 30 transmits the incoming message to the called terminal 10 (413).

The destination terminal 10 transmits the result of the incoming message to the SIP server 30 (414), and the SIP server transmits the result to the TCS 40 again (415).

The TCS 40 deletes the stored incoming data (416), notifies the PI 50 of the success / failure result for the delivery of the incoming message (417), and the PI 50 sends a response to the notification to the TCS. (418).

In this manner, the incoming message provided by the PI 50 is delivered to the called terminal 10 and displayed on the screen.

In the embodiment of FIG. 4, when the incoming message is not the text type but the multimedia type, the TCS 40 transmits and processes the Invite message to the SIP server 30 in step 4 (S30-30 of FIG. 3). 311), a multimedia message is delivered to the called terminal 10 (312-319 of FIG. 3).

In addition, when the incoming message is a streaming message among multimedia types, real-time delivery of the streaming message is possible through RTP / RTSP setting between the called terminal 10 and the TCS 40.

5 shows that the incoming message is a text type and the session is not established in the destination terminal 10 according to the PDP context activation procedure in 3GPP TS 23.060. The TCS 40 is registered in the SIP server 30, but the destination terminal 10 has been registered. ) Is not registered, the message flow when the GGSN 36 is in charge of the PDP context activation procedure in 3GPP TS 23.060.

In the first step S1, when the PI 50 transmits a push message (incoming message) to the TCS 40 using the PAP (501), the TCS 40 responds to the PI 50 with respect to the incoming message. (502) The incoming data is stored (503).

When the PI 50 transmits an incoming message to the TCS 40 through the Internet 60, an SMTP or HTTP protocol may be used instead of the PAP protocol.

The TCS 40 transmits the incoming message to the SIP server 30 without sending the Invite message to the SIP server 30 to perform the fourth step, if the text is an incoming message type (step 504). Since the terminal 10 is not registered in the SIP server 30, the SIP server 30 transmits a 404 Not found message to the TCS 40 without transmitting the incoming message to the destination terminal 10 (505).

The TCS 40 forwards the Subscriber message to the SIP server 30 (506), and the SIP server 30 forwards the Accepted message to the TCS 40 (507) and the TCS 40 receives the call. Wait for registration of the terminal 10.

The TCS 40 uses the GGSN 38 to provide information necessary for the called terminal 10, that is, information necessary for activating the PDP context (Packet Data Protocol (PDP) type, PDP address, APN (Access Point Name)) and the called terminal 10. Information (IMSI (International Mobile Subscriber Identity)) for finding mobility information of the mobile station (508), and the GGSN 38 queries the HLR 32 to manage mobility of the called terminal 10. When the SGSN 36 finds an address and sends information necessary for the PDP context to the corresponding SGSN 36 (509), the SGSN 36 requests the PDP context activation to the destination terminal 10. (510).

As a result, a PDP context activation procedure is performed between the GGSN 38 and the called terminal 10 (511) to complete the second step (S2).

After that, the terminating terminal 10 automatically sends a registration message to the SIP server 30 (512), and the SIP server 30 notifies that the TCS 40 has been registered, and the TCS 40 receives an OK message. The server transmits to the SIP server 30 (513).

In this manner, the destination terminal 10 completes the third step S3 registered with the SIP server 30.

In the fourth step (S4), the TCS 40 sees the incoming message type and if it is text, the TCS 40 transfers the incoming message to the SIP server 30 without sending an Invite message to the SIP server 30 (514).

The SIP server 30 delivers the incoming message to the called terminal 10, and again, the called terminal 10 transmits the incoming message result to the SIP server 30 (515).

The SIP server 30 again transmits the result to the TCS 40 (516).

The TCS 40 deletes the stored incoming data, notifies the PI 50 of the success / failure result of the delivery of the incoming message, and the PI 50 sends a response to the notification to the TCS 40. (517).

In this manner, a session is established according to a PDP context activation procedure in 3GPP, and the called terminal 10 is registered in the SIP server 30 and an incoming message provided by the PI 50 is delivered to the called terminal 10. .

In the embodiment of FIG. 5, when the incoming message is not a text type but a multimedia type, in step 4, the TCS 40 sends an Invite message to the SIP server 30 and processes it (step 306-of FIG. 3). 311), a multimedia message is delivered to the called terminal 10 (312-319 of FIG. 3).

In addition, when the incoming message is a streaming message among multimedia types, real-time delivery of the streaming message is possible through RTP / RTSP setting between the called terminal 10 and the TCS 40.

6 shows that the incoming message is a text type and the session is not established in the destination terminal 10 according to the PDP context activation procedure in 3GPP TS 23.060. The TCS 40 is registered in the SIP server 30, but the destination terminal 10 has been registered. Is not registered, it is a message flow when the TCS 40 is in charge of the PDP context activation procedure in 3GPP TS 23.060.

In the first step S1, when the PI 50 transmits a push message (incoming message) to the TCS 40 using the PAP (601), the TCS 40 responds to the PI 50 with respect to the incoming message. (602) The incoming data is stored (603).

When the PI 50 transmits an incoming message to the TCS 40 through the Internet 60, an SMTP or HTTP protocol may be used instead of the PAP protocol.

The TCS 40 transmits the incoming message to the SIP server 30 without sending an Invite message to the SIP server 30 to perform the fourth step S4 when the incoming message type is a text. Since the called terminal 10 is not registered in the SIP server 30, the SIP server 30 transmits the 404 Not found message to the TCS 40 without transmitting the incoming message to the called terminal 10 ( 605).

The TCS 40 forwards the Subscriber message to the SIP server 30 (606), and the SIP Server 30 forwards the Accepted message to the TCS 40 (607) and the TCS 40 receives the call. Wait for registration of the terminal 10.

The TCS 40 sends an inquiry (IMSI) to find the mobility information of the called terminal directly to the HLR 32 and makes an inquiry and finds the SGSN 36 address managing the mobility of the called terminal through the inquiry (608), Informs the SGSN 36 of the information necessary for activating the PDP context (PDP type, PDP address, APN, and information (IMSI) for finding mobility information of the called terminal) (609), and the SGSN 36 receives the called terminal. In step 1010, a request for PDP context activation is requested (610).

Accordingly, the PDP context activation procedure is performed between the GGSN 38 and the called terminal 10 (611) to complete the second step (S2).

Thereafter, the called terminal 10 automatically sends a registration message to the SIP server 30 (612), and the SIP server 30 notifies that the TCS 40 has been registered and the TCS 40 receives an OK message. Transfer to the SIP server 30 (613).

In this manner, the destination terminal 10 completes the third step S3 registered with the SIP server 30.

In the fourth step (S4), the TCS 40 reports the incoming message type, and if it is text, transmits the incoming message to the SIP server 30 without sending an Invite message to the SIP server 30 (614).

The SIP server 30 transmits the incoming message to the called terminal 10, and again, the called terminal 10 delivers the incoming message result to the SIP server 30 (615),

The SIP server 30 again transmits the result to the TCS 40 (616).

The TCS 40 deletes the received incoming data, notifies the PI 50 of the success / failure result of the delivery of the incoming message, and the PI 50 sends a response to the notification to the TCS 40. (617).

In this manner, a session is established according to a PDP context activation procedure in 3GPP, and the called terminal 10 is registered in the SIP server 30 and an incoming message provided by the PI 50 is delivered to the called terminal 10. .

In the embodiment of FIG. 6, when the incoming message is not a text type but a multimedia type, in step 4, the TCS 40 sends an invitation message to the SIP server 30 to process it (FIG. 3). 306-311), the multimedia message is passed to the destination terminal 10 (312-319 of FIG. 3).

In addition, when the incoming message is a streaming message among multimedia types, real-time delivery of the streaming message is possible through RTP / RTSP setting between the called terminal 10 and the TCS 40.

7 is a message flow diagram when a session is not established in the destination terminal 10 according to the PDP context activation procedure in 3GPP TS 23.060 when the incoming message is a text type and the text size does not exceed 80 bytes.

In a first step, when the PI 50 transmits a push message (incoming message) to the TCS 40 using the PAP (701), the TCS 40 responds to the PI 50 with respect to the incoming message (702). In operation 703, the bearer network selects a bearer network to store incoming data and deliver the incoming message.

When the PI 50 transmits an incoming message to the TCS 40 through the Internet 60, an SMTP or HTTP protocol may be used instead of the PAP protocol.

The TCS 40 confirms that the text size is not more than 80 bytes and transmits a short message SM to the SMSC 34 (704).

The SMSC 34 sends a message for requesting an IP address for managing the location of the destination terminal 10 to the corresponding HLR 32 and receives a response, and forwards the incoming message to the SGSN / GGSN 36/38 (705).

At this time, the SGSN / GGSN 36/38 sends a short message to the called terminal 10 and receives the result from the called terminal 706 and transmits the received message to the SMSC 34 (707), and the SMSC 34 transmits the TCS. Forward to 40 (708).

The TCS 40 deletes the incoming data that was stored (709), notifies the PI 50 of the success / failure result for the delivery of the incoming message (710), and the PI 50 sends a response to the notification to the TCS. Forward to 50 (711).

In this manner, the incoming message provided by the PI 50 is delivered to the called terminal 10 and displayed on the screen.

8 is a diagram illustrating a protocol stack of a terminating control system according to the present invention, wherein an IP layer is a path between a TCS 40 and a PI 50, an SMSC 34, and an HLR 32. The network layer used to set up and send data.

User Datagram Protocol (UDP) is one of the higher IP protocols used in TCP / IP networks. It is an Internet standard transport layer protocol defined in STD 6 and RFC 768. The UDP layer includes TCS 40, SGSN 36, and SIP server. It is a transport layer that transmits data between user units 30 and PI 50 in user datagram units and manages end-to-end control and errors to ensure reliable data transmission.

The TCP layer is a protocol for controlling the transfer between the TCS 40 and the PI 50 to the same transport layer as the UDP layer.

Session Description protocol (SDP) is a protocol for displaying session information to be expressed in a session, and Session Initiation Protocol (SIP) is a session establishment protocol that standardizes the extension security of IETF's Working Group (WG) RFC 2543 SIP. Signaling protocol.

The SDP / SIP layer constitutes a communication session.

Real-time Transport Protocol (RTP) is a protocol for transmitting real-time data such as audio and video, and Real Time Streaming Protocol (RTSP) is a protocol for controlling streaming data.The RTP / RTSP layer transmits data in real time. It is a hierarchy.

HTTP (HyperText Transfer Protocol) is a communication protocol used for exchanging hypertext documents on the Internet. Simple Mail Transfer Protocol (SMTP) is a protocol used for sending and receiving e-mail. The HTTP / SMTP layer provides a representation of data. The presentation layer to convert.

Simple Message Peer to Peer Protocol (SMPP) is a protocol used to send and receive short messages. The SMPP layer is configured with a notification layer that delivers a message result to the other party.

The PAP layer is a layer for transferring push data between the PI 50 and the TCS 40.

The PPG application layer, which is the highest layer, is a layer that considers communication partner, quality of service (QoS), user authentication and secret, and defines data syntax constraints.

When a message is given between the TCS 40 and the networked equipment in the TCS protocol stack as described above, data flows through each layer down one layer from one side, and receives a message from the other side and passes up one layer. Is delivered.

9A-9E are network protocol stacks between TCS 40 and other equipment.

In the following description, the layer described in FIG. 8 is weak in description to avoid duplication, and only the new layer will be described.

9A is a network protocol stack between SGSN 36 and TCS 40, where the L1 layer is the physical layer and the L2 layer is the datalink layer.

An IP layer and a UDP layer are stacked on the upper layer, and the GTP-C layer on the upper layer is a layer related to the GTP control plane signaling procedure of the GPRS Tunneling Protocol (GTP). Configure GTP as in the user plane data transfer (GTP-U) procedure.

9B is a network protocol stack between the HLR 32 and the TCS 40, from bottom to top, a signaling bearer layer for directly transmitting and receiving signals, and a signaling connection control protocol (SCCP) for controlling signal connections. Layer, a Transaction Control Application Part (TCAP) layer that defines a formal format and procedure for two applications in the SS7 signaling network to send and receive messages that are meaningful to each other to achieve a certain purpose, and systems in the mobile telephone network to handle calls. Information that needs to be exchanged with each other is stacked in the MAP (Mobile Application Part) layer defined according to the procedures recommended by the TCAP specification.

9C is a network protocol stack between the SIP server 30 and the TCS 40, and is stacked from the bottom to the top, in the order of the L1 layer, the L2 layer, the IP layer, the UDP layer, and the SIP layer.

9D is a network protocol stack between SMSC 34 and TCS 40, stacked from bottom to top, in order of L1 layer, L2 layer, IP layer, TCP layer, SMPP layer.

9E is a network protocol stack between the TCS 40 and the PI 50, stacked from bottom to top in the order of L1 layer, L2 layer, IP layer, TCP / UDP layer, PAP, HTTP, SMTP layer.

As described above, it is possible to provide a SIP-based incoming service with a WCDMA (IMT-2000) network by interworking with a session processing function for receiving SIP and 3GPP TS 23.060.

According to the above-described invention, it is possible to set up a session using the IMT-2000 infrastructure without using SMS, and to receive a call using the same, and to develop a flexible service using SIP protocol characteristics.

As described above, according to the present invention, the incoming call control system manages call processing and incoming information related to the incoming call so that the incoming call can be provided in the SIP-based infrastructure environment by interworking with the session processing function for the incoming SIP and 3GPP TS 23.060. In addition, as a true push function, it is possible to provide incoming service to incoming terminal, outgoing charging and incoming charging, and deliver text-based message and multimedia-based message.

Claims (21)

An incoming control system (TCS) for managing call processing and incoming information related to incoming calls; A PI that provides an incoming message and delivers an incoming message to the TCS via the Internet with a user ID that distinguishes a called terminal; A SIP server receiving an incoming message from the TCS and serving a called terminal through a radio network assistance system (RNS) using SIP; A called terminal for receiving an incoming message from the SIP server and displaying the incoming message on a screen; Incoming service system of 3GPP IMT-2000 packet network including. An incoming control system (TCS) for managing call processing and incoming information related to incoming calls; A PI that provides an incoming message and delivers an incoming message to the TCS via the Internet with a user ID that distinguishes a called terminal; A SIP server receiving an incoming message from the TCS and serving a called terminal through a wireless network auxiliary system using SIP; A called terminal for receiving an incoming message from the SIP server and displaying the incoming message on a screen; An HLR for responding by finding an address of an SGSN that manages mobility of the called terminal; A GGSN requesting an inquiry to the HLR to find an SGSN address that manages mobility by receiving necessary information from the TCS and transmitting information required for a PDP context activation procedure to the corresponding SGSN; SGSN for performing a request PDP context activation procedure between the called terminal and the GGSN according to the information sent from the GGSN; Incoming service system of 3GPP IMT-2000 packet network including. The 3GPP of claim 2, wherein the information required for the called terminal received from the TCS in the GGSN is a PDP type, a PDP address, information required for activating the PDP context of the APN, and information (IMSI) for finding mobility information of the terminal. Incoming service system of IMT-2000 packet network. The method of claim 2, wherein the protocol stack between the SGSN and TCS, From the bottom to the top, the L1 layer, the physical layer, the L2 layer, the data link layer, the IP layer used to set paths and send data, and send data in user datagram units and manage end-to-end control and errors. An incoming service system of a 3GPP IMT-2000 packet network, characterized in that the stacking is performed in the order of the UDP layer and the GTP-C layer related to the GTP control plane signaling procedure of the GPRS Tunneling Protocol (GTP). The method of claim 2, wherein the protocol stack between the HLR and TCS, From bottom to top, the signaling bearer layer to send and receive signals directly, the SCCP layer to control signal connections, the TCAP layer to define formal formats and procedures for sending and receiving meaningful messages, and the systems in the mobile telephone network Incoming service system of the 3GPP IMT-2000 packet network, characterized in that the information to be transmitted and received for processing is stacked in the order of MAP layer defined in accordance with the procedure recommended in the TCAP standard. The method according to claim 1 or 2, wherein the protocol stack between the SIP server and the TCS, From the bottom to the top, the L1 layer, the physical layer, the L2 layer, the data link layer, the IP layer used to set paths and send data, and send data in user datagram units and manage end-to-end control and errors. Incoming service system of the 3GPP IMT-2000 packet network, characterized in that the stacking in the order of the SIP layer, which is the signaling protocol of the application layer in the UDP layer, and the session establishment protocol. The terminating service system of a 3GPP IMT-2000 packet network according to claim 1 or 2, wherein the TCS performs a series of terminating procedures through a SIP to provide a push function. An incoming control system (TCS) for managing call processing and incoming information related to incoming calls; A PI that provides an incoming message and delivers an incoming message to the TCS via the Internet with a user ID that distinguishes a called terminal; An SMSC receiving a short message from the TCS and sending a message to the HLR requesting an IP address for managing the location of the called terminal when the incoming message is a text type and the text size is not more than 80 bytes; SGSN / GGSN receiving the short message from the SMSC and finally delivering the incoming message to the called terminal through SMS; A called terminal for receiving an incoming message from the SGSN / GGSN and displaying it on a screen; Incoming service system of 3GPP IMT-2000 packet network including. The method of claim 8, wherein the protocol stack between the SMSC and TCS, From bottom to top, the L1 layer as the physical layer, the L2 layer as the data link layer, the IP layer used to establish routes and send data, the TCP layer to control the transfer between the two systems, and send and receive short messages. Incoming service system of the 3GPP IMT-2000 packet network, characterized in that the stack in the order of the SMPP layer. The incoming service of the 3GPP IMT-2000 packet network according to any one of claims 1, 2, and 8, wherein the incoming message is delivered from the PI to the TCS using any one of PAP, SMTP, and HTTP protocols. system. The method according to any one of claims 1, 2, 8, wherein the protocol stack between the PI and TCS, From the bottom to the top, the physical layer L1 layer, the data link layer L2 layer, the IP layer used to set the path and send data, and the TCP layer and user datagrams that control the transfer between the two systems Incoming service system of 3GPP IMT-2000 packet network, characterized in that stacking in the order of UDP layer, PAP, HTTP, SMTP layer. Consists of a terminating control system (TCS), a PI, a SIP server, and a terminating terminal, In the incoming service system in which the incoming message is a text type, the session is established in the destination terminal according to the PDP context activation procedure in 3GPP TS 23.060, and the destination terminal and the TCS are registered in the SIP server; Forwarding an incoming message from the PI to a TCS; The TCS forwarding an incoming message without sending an Invite message to a SIP server; And receiving, by the SIP server, an incoming message to the called terminal by using the SIP. The method according to claim 12, wherein when the incoming message is not a text type but a multimedia type, In the state where the TCS receives an incoming message from the PI, the TCS sends an Invite message requesting the capability information of the called terminal to the SIP server and passes the multimedia message to the SIP server after receiving the response. Incoming service method of 3GPP IMT-2000 packet network. The method according to claim 12, wherein the destination terminal is not registered in the SIP server, With the TCS forwarding the incoming message to the SIP server, The SIP server responds to the TCS through a 404 Not found message; The TCS sending a Subscriber message to a SIP server and waiting for registration of a called terminal; After receiving a registration message from the called terminal, the SIP server passes the message that the TCS has been registered. Incoming service method of the 3GPP IMT-2000 packet network, characterized in that the TCS delivers the incoming message to the SIP server. The method of claim 14, wherein the incoming message is a multimedia type, In the state where the TCS receives the message that the called terminal is registered in the SIP server, TCS sends an Invite message requesting the capability information of the called terminal to the SIP server, and passes the multimedia message to the SIP server after receiving the response. 3. 16. The method of claim 13 or 15, wherein when the incoming message type is a streaming message to the Invite message, the streaming message is transmitted through RTP / RTSP configuration. The terminating control system (TCS), PI, SIP server, terminating terminal, SGSN, HLR, GGSN, In the incoming service system, the incoming message is a text type, the session is not established in the destination terminal according to the PDP context activation procedure in 3GPP TS 23.060, the TCS is registered in the SIP server, but the destination terminal is not registered; Forwarding an incoming message from the PI to a TCS; The TCS forwarding an incoming message without sending an Invite message to a SIP server; The SIP server responds to the TCS through a 404 Not found message; The TCS sending a Subscriber message to a SIP server and waiting for registration of a called terminal; Transmitting, by the TCS, information necessary for a called terminal to a GGSN; The GGSN finding an SGSN address for managing mobility of the called terminal through an HLR inquiry and sending information necessary for activating the PDP context to the corresponding SGSN; The SGSN performing a request PDP context procedure to a called terminal; Transmitting, by the called terminal, a registration message to a TCS through a SIP server; The TCS forwarding an incoming message to a SIP server; And receiving, by the SIP server, an incoming message to the called terminal by using the SIP. The method of claim 17, wherein the TCS waits for registration of a called terminal. 3GPP IMT-2000 characterized in that the TCS directly sends information to find the mobility information of the UE to the HLR, finds the SGSN address managing the mobility of the called terminal through the HLR inquiry, and sends information required for activating the PDP context to the corresponding SGSN. Incoming service method of packet network. The method according to claim 17 or 18, wherein the incoming message is a multimedia type, In the state where the TCS receives the registration message of the called terminal through the SIP server, TCS sends an Invite message requesting the capability information of the called terminal to the SIP server, and passes the multimedia message to the SIP server after receiving the response. 3. 20. The method of claim 19, wherein when the incoming message type is a streaming message to the Invite message, the streaming message is transmitted through RTP / RTSP configuration. PDP context activation procedure in 3GPP TS 23.060, consisting of terminating control system (TCS), PI, SMSC, SGSN / GGSN, and terminating terminal, wherein the terminating message is text type and the text size does not exceed 80 bytes In the incoming service system is not established a session according to; Forwarding an incoming message from the PI to a TCS; Transmitting, by the TCS, a short message to the SMSC by checking whether the text size is not larger than 80 bytes; Sending, by the SMSC, a message for requesting an IP address for managing a location of a called terminal to a corresponding HLR, receiving a response, and sending an incoming message to SGSN / GGSN; The SGSN / GGGSN is a method for receiving services of the 3GPP IMT-2000 packet network, characterized in that it comprises the step of transmitting the incoming message to the destination terminal via SMS.