WO2006043778A1

WO2006043778A1 - Method and system for providing termination service by using paging function for use in portable internet

Info

Publication number: WO2006043778A1
Application number: PCT/KR2005/003482
Authority: WO
Inventors: Moonkee Kim
Original assignee: Sk Telecom Co., Ltd.
Priority date: 2004-10-19
Filing date: 2005-10-19
Publication date: 2006-04-27
Also published as: KR20060034569A; KR101115432B1

Abstract

Disclosed are a method and a system for providing a termination service using a paging function in portable Internet. The method for providing a data termination service used for reporting that a data termination request from an Internet network exists to a hybrid terminal supporting both a portable Internet service and a mobile communication service in an inter working system of a portable Internet network providing the portable Internet service and a mobile communication network providing the mobile communication service, includes the steps of (a) receiving the data termination request from the Internet network to the hybrid terminal and a wireless Internet connection identifier of the hybrid terminal, (b) determining by an inter-working termination server information about the hybrid terminal and a mobile communication identifier matched with the wireless Internet connection identifier, (c) determining location information about the hybrid terminal through the mobile communication network by transmitting the mobile communication identifier from the mobile communication network, (d) transmitting a paging message reporting that a data termination request from the Internet network exists to the hybrid terminal, and (e) transmitting the data after determining connection of the hybrid terminal and the portable Internet network. Accordingly, it is possible to inform a user of data termination and enhance a data termination probability, so that it is possible to enhance the satisfaction of a user for communication service. In addition, since the hybrid terminal may monitor only a data reception state from a mobile communication network in order to receive a message of reporting information about data termination, it is possible to reduce battery power consumption.

Description

METHOD AND SYSTEM FOR PROVIDING TERMINATION SERVICE BY USING PAGING FUNCTION FOR USE IN PORTABLE INTERNET

Technical Field

The present invention relates to a method and a system for providing a termination service using a paging function in portable Internet, and more particularly to a method and a system, in which an inter-working termination server is added to a portable Internet system in order to manage a mobile station, determines whether or not a mobile station for a data termination request from Internet is a hybrid terminal, and then transmits through a mobile communication network a paging message reporting that a data termination request from the Internet exits if the mobile station is a hybrid terminal capable of performing both a portable Internet service and a mobile communication service, thereby allowing the hybrid terminal to transmit/receive data through connection to portable Internet.

Background Art

As computer, electronic, and communication techniques have rapidly developed, various wireless communication services have been provided through a wireless network. The most fundamental wireless communication service is a wireless voice communication service, which provides wirelessly voice communication to users utilizing mobile stations (MSs) and can be provided to users regardless of time and location. In addition, a short message service is provided in order to complement a voice communication service. In the meantime, recently, a wireless Internet service, which provides an Internet communication service to users utilizing the MSs through a wireless communication network, has been introduced.

As described above, services provided by a code division multiple access (CDMA) mobile communication system have been developed toward multimedia communication services transmitting circuit data and packet data as well as voice services due to the advance of ^"mobile communication techniques.

In addition, recently, international mobile telecommunication 2000 (IMT-2000) (e.g., CDMA 2000 Ix, 3x, and EV-DO, and a wideband CDMA (WCDMA)), which is the third generation mobile communication system and established as a standard by the international telecommunication union radio communication sector (ITU-R), is being commercialized due to the progress of information communication. The IMT-2000 can provide a wireless Internet with a maximum data rate of 144Kbps, which is faster than a data rate of 14.4Kbps or 56Kbps (supportable in an IS-95A or IS-95B network) using an IS-95C network evolving from an existing IS-95A or IS-95B network. In particular, if the IMT-2000 service is used, various multimedia services (AOD, VOD, etc.) may be provided at a relatively faster data rate with the improvement of voice and WAP service quality.

FIG. 1 is a schematic block diagram illustrating the structure of the conventional mobile communication system providing a wireless Internet service.

The mobile communication system for providing a wireless Internet service includes a MS (MS) 110, a base transmitter system (BTS) 122, a base station controller (BSC) 124, a mobile switching center (MSC) 126, a home location register (HLR) 128, a packet data serving node (PDSN) 130, a mobile communication IP network 140, a router 150, a home agent (HA) 160, an authentication, authorization, accounting (AAA) server 170, and an Internet network 180.

The MS 110 can make communication through a mobile communication network and receives a wireless Internet service used for transmitting/receiving packet data through a session established with the mobile communication network. The MS 110 receives or transmits data from the mobile communication ^• network based on a wireless application protocol (WAP) which is a protocol for connection to a wireless Internet, a Microsoft internet explorer (MIE) based on an HTML using an HTTP protocol, a handheld device transport protocol (HDTP), and an FTP function. The BTS 122 is arranged based on a cell and perforins location registration in order to detect the position of the MS 110. In addition, the BTS 122 is a network endpoint device directly connected with the MS 110 by performing a base band signal processing function, a wire/wireless converting function, and a wireless signal transmitting/receiving function.

The BSC 124 controls transmission power of the BTS 122, determines soft handoff and hard handoff between cells, performs transcoding and vocoding, distributes a GPS clock, and performs an operation and maintenance function for a base station. In addition, the BSC 124 transmits information about a subscriber of the MS 110, the location of which is registered, to the MSC 126 and delivers a communication request signal and a data request signal from the MSC 126 to the BTS 142. The BSC 124 transceives packet data and provides a wireless Internet service to the MS 110 through connection to the PDSN 130.

The MSC 126 processes basic and additional services, a call terminated to or originated from a subscriber, a data signal, and a location registration procedure and handoff, and inter-works with other networks.

The HLR 128 recognizes and deletes the registration of the MS and confirms the location of the MS 110. In addition, if a location information requesting signal for a data transmission request is transmitted to the MS 110 from the following mobile communication IP network, the HLR 128 searches a database and delivers information about the BSC 124 and the BTS 122 in an area, where the MS 110 is located, to the mobile communication IP network. In other words, the HLR 128 transmits a response signal to the mobile communication IP network 140 in response to the location information requesting signal by inserting information about an address of the BTS 122 into the response signal.

The PDSN 130 provides a database service to the MS 110. The PDSN 130 is an evolved form based on an inter-working function used for supporting data communication by the second generation (2G) mobile communication system.

The mobile communication IP network 140 is a network endpoint device for transmitting a session establishment request signal by searching for the location information of the MS 110, which is a target of data transmission, and confirming address information of the BTS 122 covering an area at which the MS 110 is located. The session establishment request signal is transmitted to the MS 110 from the PDSN 130. The MS 110 having received the session establishment request signal establishes a session with the PDSN 130. When the session establishment request signal is transmitted to the MS 110, it is necessary for the BTS 122 to call the MS 110 through a paging channel. At this time, the BTS 122 transmits a paging message as a call message. The paging message is used for reporting to the MS 110 that there is a call connection and transmitted through the paging channel in radio channels.

The mobile communication IP network 140 is connected to the Internet 180 through a router 150. In addition, the router 150 is connected to the HA 160, the AAA 170, and the

Internet 180 in addition to the mobile communication IP network 140.

When data is transmitted to the MS 110 from the Internet 180, the HA 160 performs a routing operation allowing transmission of data from an exterior in the case of using a mobile IP, and the AAA 170 performs an accounting operation for data used in the MS 110 and an authentication operation for connection from the MS 110 by inter-working with the mobile communication system 120. Although the mobile communication system is described based on the Ix EV-DO network as described above, the IS-95, the CDMA 2000 Ix, the WCDMA, the GSM, and the IxE-DV have components similar to those of the Ix EV-DO, and the components of the systems have functions similar to those of the components of the Ix EV-DO.

The mobile communication system for transmitting data through the above-described procedure may require high- priced Internet fees for the wireless Internet. In addition, since the MS has a small screen, available contents may be restricted, so there may occur limitation in the provision of an ultra high-speed wireless Internet. . Accordingly, a wireless broadband (wibro) or high¬ speed portable Internet (Hpi) system, which is capable of ensuring portability and mobility and using an ultra high¬ speed wireless Internet with economical Internet fees, has been introduced.

FIG. 2 is a schematic diagram illustrating the structure of the conventional portable Internet system providing a portable Internet service.

The portable Internet system includes a mobile support station (MSS) 210, a radio access station (RAS) 222, a packet access router (ACR; access control router) 224, an IP network 230, a router 150, a HA 160, an AAA 170, and an

Internet network 180.

The MSS 210 uses an ultra high-speed wireless Internet service through connection to the portable Internet system and performs a low power radio frequency (RF) /intermediate frequency (IF) module and controller function, variably controls a media access control frame according to a service characteristic and a radio environment, performs a handoff function and an authentication and encryption function.

The RAS 222 refers to a base station of a portable ^•Internet system and wirelessly transmits data received from the ACR 224 to the MSS 210. In addition, the RAS 222 performs a low power radio frequency (RF)/intermediate frequency (IF) module and controller function, an OFDMA/TDD packet scheduling and channel multiplexing function, a function of variably controls a media access control frame according to a service characteristic and a radio environment, a function of controlling traffic having a high speed of 50Mbps in real time, and a handover function. In addition, the MSS 210 and the RAS 222 have a function of modulating/de-modulating a packet of 50Mpbs for data transmission, a function of channel-coding a high-speed packet, and a function of controlling a modem in real time.

The ACR 224 covers a plurality of RASs 222 and acts as a packet access router between the RASs 222. In addition, the ACR 224 has a function of controlling handover between the RASs 222, a handover function between the ACRs 224, a packet routing function, and an Internet access function and is connected to the IP network 230. The IP network 230 is connected to the HA 160 and the AAA 170, receives packet data through an external packet data service from the Internet network 180, and transmits the packet data to the ACR 224.

Although such a portable Internet system ensures portability and mobility and provides an ultra high- speed wireless Internet service with an economical Internet fee, a dedicated terminal, that is, a MSS 210 is required in order to receive the portable Internet service. However, the MSS 210 does not typically support a voice call terminating/originating function, or slightly support the voice call terminating/originating function, if any, so that a portable Internet service user must purchase both the MS 110 and the MSS 210. Accordingly, a hybrid terminal capable of providing functions of both an MS supporting the voice call terminating/originating function and an MSS supporting portable Internet has been suggested.

In voice call termination, the hybrid terminal simultaneously registers the location of the hybrid terminal in a plurality of base stations and uses a paging function of simultaneously reporting call termination to the base stations even though the hybrid terminal moves between BTSs at a high speed, so the hybrid terminal has a high call termination probability similarly to the mobile communication system. However, in data termination based on the portable Internet, the portable Internet does not basically provide data termination, or slightly provide the data termination, if any. Accordingly, when the hybrid terminal is used, a scheme of enhancing a data termination probability based on the portable Internet is required.

Disclosure of the Invention

Therefore, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to a method and a system, in which an inter-working termination server is added to a portable

Internet system in order to manage a mobile station, determines whether or not a mobile station for a data termination request from Internet is a hybrid terminal, and then transmits through a mobile communication network a paging message reporting that a data termination request from the Internet exits if the mobile station is a hybrid terminal capable of performing both a portable Internet service and a mobile communication service, thereby allowing the hybrid terminal to transmit/receive data through connection to portable Internet. In order to accomplish the object of the present invention, there is provided a system for providing a data termination service used for reporting to a hybrid terminal that a data termination request to a hybrid terminal exists, the hybrid terminal supporting both a portable Internet service and a general mobile communication service, the system including an internet network for providing data to the hybrid terminal, a mobile communication network for providing the mobile communication service to the hybrid terminal and transmitting a message to the hybrid terminal, the message used for reporting that a data terminal request from the Internet network exists, a mobile communication Internet protocol (IP) network for providing a function of transmitting/receiving data between the mobile communication network and the Internet network, a portable Internet network for providing a portable Internet service used for transmitting/receiving the data to/from the hybrid terminal, an Internet protocol network for providing a function of transmitting/receiving data between the portable Internet network and the Internet network, and an inter-working termination server for determining a type of the hybrid terminal, an mobile communication identifier of the hybrid terminal, and a wireless Internet connection identifier of the hybrid terminal according to the data termination request from the Internet network and providing the mobile communication identifier of the hybrid terminal to the mobile communication network.

According to another aspect of the present invention, there is provided a method for providing a data termination service used for reporting that a data termination request from an Internet network exists to a hybrid terminal supporting both a portable Internet service and a mobile communication service in an inter-working system of a portable Internet network providing the portable Internet service and a mobile communication network providing the mobile communication service, the method including the steps of (a) receiving the data termination request from the Internet network to the hybrid terminal and a wireless Internet connection identifier of the hybrid terminal, (b) determining by an inter-working termination server information about the hybrid terminal and a mobile communication identifier matched with the wireless internet connection identifier, (c) determining location information about the hybrid terminal through the mobile communication network by transmitting the mobile communication identifier from the mobile communication network, (d) transmitting a paging message reporting that a data termination request from the Internet network exists to the hybrid terminal, and (e) transmitting the data after determining connection of the hybrid terminal and the portable Internet network.

Brief Description of the Drawings

FIG. 1 is a schematic block diagram illustrating the structure of the conventional mobile communication system providing a wireless Internet service;

FIG. 2 is a schematic diagram illustrating the structure of the conventional portable Internet system providing a portable Internet service;

FIG. 3 is a schematic block diagram illustrating the structure of a system for providing a data termination service to portable Internet according to a preferred embodiment of the present invention; and

FIG. 4 is a flowchart illustrating a method for providing a termination service through portable Internet according to a preferred embodiment of the present invention.

Best Mode for Carrying Out the Invention Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Note that the same or similar components in drawings are designated by the same reference numerals as far as possible although they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a schematic block diagram illustrating the structure of a system for providing a data termination service to portable Internet according to a preferred embodiment of the present invention. A portable Internet termination system for providing a data termination service to portable Internet according to the present invention further includes an inter-working termination server 320 and a hybrid terminal information database 330 in addition to a system obtained by inter- working a mobile communication system with a portable Internet system. Herein, the mobile communication system and the portable Internet system are inter-worked with the mobile communication IP network 140 and the IP network 230, which are linked with each other through the router 150, respectively, through the router 150. The mobile communication system and the portable Internet system share the HA 160 and the AAA 170 with each other. Herein, the HA 160 or the AAA 170 may be included in either the mobile communication system or the portable Internet system.

In addition, the portable Internet termination system according to the present invention includes a hybrid terminal 310 having functions of both a MS 110 and a MSS 120. The hybrid terminal 310 can receive a voice communication service through a mobile communication network and a portable Internet service through the portable Internet. The hybrid terminal 310, which is a multi mode-multi band (MM-MB) terminal supporting two systems or more, accesses the mobile communication network using a mobile communication modem in order to receive a voice communication service and accesses the portable Internet using a portable Internet modem in order to receive a portable Internet service. Usually, when the hybrid terminal uses the mobile communication modem, the portable Internet modem is not used. When the hybrid terminal uses the portable Internet modem, the mobile communication modem is not used. However, the hybrid terminal may simultaneously receive a voice communication service and a portable Internet service using both the mobile communication modem and the portable Internet modem.

The inter-working termination server 320 stores information about a subscriber and information about the hybrid terminal 310. Herein, the subscriber information includes information about whether or not a terminal utilized by a subscriber receiving the portable Internet service is the hybrid terminal 310 and the type of the received service. The information about the hybrid terminal 310 includes a mobile communication identifier of the hybrid terminal 310, a wireless Internet connection identifier, and the type of the terminal. Herein, the inter-working termination server 320 can be set in such a manner that it confirms the subscriber information from the HLR 128 by inter-working with the HLR 128 of the mobile communication system instead of storing the subscriber information.

The inter-working termination server 320 matches the mobile communication identifier of the hybrid terminal 310 with the wireless Internet connection identifier so as to store the identifiers in a hybrid terminal information database 330. Then, if the IP network 230 requests the information about the hybrid terminal 310, the inter-working termination server 320 provides information about the mobile communication identifier of the hybrid terminal 310 to the IP network 230.

The hybrid terminal information database 330 stores information about the hybrid terminal 310 through the inter- working termination server 320. The hybrid terminal information database 330 can store the subscriber information in addition to the information about the hybrid terminal 310. The hybrid terminal information database 330 may be included in the inter-working termination server 320 according to system setting. In addition, when the inter- working termination server 320 receives the subscriber information from the HLR 128 as described above, since the HLR 128 performs the function of the hybrid terminal information database 330, the hybrid terminal information database 330 may be omitted.

FIG. 4 is a flowchart illustrating a method for providing a termination service through the portable Internet according to a preferred embodiment of the present invention.

The inter-working termination server 320 acquires hybrid terminal information of portable Internet termination service users and stores the information, in the hybrid terminal information database 330. The Internet 180 generates a data termination request signal depending on whether or not a terminal in a waiting mode receives an e- mail or a multimedia message. Herein, if the terminal for a data termination request is the hybrid terminal 310, the data termination request signal must include a wireless Internet connection identifier in step S402.

The IP network 230 having received the data termination request signal from the Internet 180 determines information about a terminal for the data termination request through the inter-working termination server 320. In other words, the inter-working termination server 320 determines whether or not a terminal for the data termination request is a hybrid terminal through the hybrid terminal information database 330 storing terminal information in step S404. If it is determined the terminal for the data termination request is the hybrid terminal, the inter-working termination server 320 determines a mobile communication identifier matched with the wireless Internet connection identifier of the hybrid terminal 310 in step S406.

If the mobile communication identifier is determined, the inter-working termination server 320 transmits the mobile communication identifier to the MSC 126 of the mobile communication network through the mobile communication IP network 140 in step S408, and the MSC 126 determines the location of the hybrid terminal 310 having the transmitted mobile communication identifier through a visitor location register (VLR) . If the location of the hybrid terminal 310 is determined, a paging message including information representing that there is a data termination request signal transmitted from the Internet network is generated through the BSC 124 and the BTS 122 in a corresponding area. Herein, the paging message is used for reporting that a voice call or a data call is reached the hybrid terminal 310 through the mobile communication network 120 and is one of plural messages transmitted to the hybrid terminal 310 through a paging channel among radio channels.

Generally, the paging message includes a message length field, a message content field, and a cyclic redundancy check (CRC) field. According to the present invention, the message content field stores contents representing that there is a data termination request signal from the Internet. Herein, the CRC field is used for error detection for verifying the reliability of data.

In addition, the paging message according to the present invention may have a new field in addition to the conventional paging message structure in order to store information representing that there is a data termination request signal from the Internet. In other words, a new field is created on a reserved field set for inserting new data into a paging message, and the created field is set as a data termination request signal field capable of storing contents including data termination request signal information, so that the created field can store information about the existence of a data termination request signal from the Internet.

If the paging message is generated, the mobile communication network 120 transmits the generated paging message to the hybrid terminal 310. Herein, a function of transmitting a paging message including a data termination request signal to the hybrid terminal 310 from the mobile communication network 120 through the BTS 122 according to the present invention, is called a paging function in step S412.

The hybrid terminal 310 having received the paging message changes an operation mode set to a mobile communication operation mode into a portable Internet operation mode according to the data termination request signal. Herein, if the hybrid terminal 310 is set to the portable Internet operational mode instead of the mobile communication operation mode, the procedure of changing the operation mode is not additionally performed in step S414.

The hybrid terminal 310 set to the portable Internet operation mode is connected to the portable Internet 220 through a session establishment with the portable Internet 220 and receives data transmitted from the Internet 180 through the IP network 230 in step S416.

In addition, when the terminal for the data termination request is not the hybrid terminal 310, the paging message may be reported such that data can be transmitted through- the mobile communication network 120. To this end, the inter-working termination server 320 determines whether or not the terminal for the data termination request is the hybrid terminal 310 in step S404. Then, if the inter-working termination server 320 determines that the terminal for the data transmission request is not the hybrid terminal 310, the inter-working termination server 320 transmits a message, which reports that data are transmitted through the mobile communication network 120, to the MSC 126 together with a mobile communication identifier of the terminal for the data termination request in step S418. The MSC 126 determines the transmitted mobile communication identifier and then determines the location of the terminal through the VLR. If the location of the terminal is determined, the MSC 126 generates a wireless Internet connection request message reporting a connection request to a wireless Internet through the mobile communication network 120. Herein, the wireless Internet connection request message may be used as a short message, a voice message, and a multi-media message service (MMS) message in step S420. The terminal having received the wireless Internet connection request message connects to the mobile communication IP network 140 through the PDSN 130 of the mobile communication network 120 and receives data from the Internet 180 in step S422. In the meantime, when it is determined that the terminal for the data transmission request is not the hybrid terminal 310 in step S404, step 418 to step 422 described above may be not performed. In other words, when it is determined that the terminal is not the hybrid terminal 310, the termination service may be directly ended without the data termination reporting procedure. Although the IxEV-DO network is described as a mobile communication system inter-worked with the portable Internet system as described above, the present invention may be realized with respect to the IS-95, CDMA2000 IX, WCDMA, GSM, and IxEV-DV. In addition, although the portable Internet is described as a portable Internet system according to the present invention, the present invention may be realized with respect to the WLAN^' system.

Industrial Applicability

As can be seen from the foregoing, according to the present invention provides, an inter-working termination server reports that there is a data receiving request from portable Internet to a hybrid terminal through a mobile communication network, the hybrid terminal can receive data through connection to the portable Internet, so that it is possible to inform a user of data termination which has been not provided in the conventional portable Internet and it is possible to enhance a data termination probability. Accordingly, it is possible to enhance the satisfaction of a user for communication service.

In addition, in order to receive a message of reporting information about data termination, since the hybrid terminal may monitor only a data reception state from a mobile communication network instead of monitoring plural networks, it is possible to reduce battery power consumption. While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment and the drawings, but, on the contrary, it is intended to cover various modifications and variations within the spirit and scope of the appended claims.

Claims

1. A system for providing a data termination service used for reporting to a hybrid terminal that a data termination request to a hybrid terminal exists, the hybrid terminal supporting both a portable Internet service and a general mobile communication service, the system comprising: an internet network for providing data to the hybrid terminal; a mobile communication network for providing the mobile communication service to the hybrid terminal and transmitting a message to the hybrid terminal, the message used for reporting that a data terminal request from the Internet network exists; a mobile communication Internet protocol (IP) network for providing a function of transmitting/receiving data between the mobile communication network and the Internet network; a portable Internet network for providing a portable Internet service used for transmitting/receiving the data ■to/from the hybrid terminal; an Internet protocol network for providing a function of transmitting/receiving data between the portable Internet network and the Internet network; and an inter-working termination server for determining a type of the hybrid terminal, an mobile communication identifier of the hybrid terminal, and a wireless Internet connection identifier of the hybrid terminal according to the data termination request from the Internet network and providing the mobile communication identifier of the hybrid terminal to the mobile communication network.

2. The system as claimed in claim 1, further comprising a hybrid terminal information database for storing information about the hybrid terminal including the type, the mobile communication identifier, and the wireless Internet connection identifier of the hybrid terminal.

3. The system as claimed in claim 1, further comprising: a home agent (HA) for performing a routing function allowing transmission of data from an exterior when data is transmitted to the hybrid terminal from the Internet network and a mobile Internet protocol (IP) is used; and an authentication, authorization, accounting (AAA) server for performing an accounting operation for data used in the hybrid terminal and an authentication operation for connection of the hybrid terminal.

4. The system as claimed in claim 1, wherein the hybrid terminal is a multi mode-multi band (MM-MB) supporting two systems or more, supports a mobile communication service through the mobile communication network, and provides a portable Internet service through the portable Internet network.

5. The system as claimed in claim 4, wherein the hybrid terminal separately has the mobile communication identifier used for receiving the mobile communication service and the wireless Internet connection identifier used for receiving the portable Internet service.

6. The system as claimed in claim 1, wherein the mobile communication network generates a paging message used for reporting that a data termination signal through the portable Internet network exists and transmits the paging message to the hybrid terminal through a paging channel.

7. The system as claimed in claim 6, wherein the paging message additionally has a data termination request signal field created on a reserved field in order to store contents of reporting that the data termination signal through the portable Internet network exits.

8. The system as claimed in claim 6, wherein the paging message includes a message length field, a message content field, and a cyclic redundancy check field and stores contents of reporting that the data termination signal through the portable Internet network exits on the message content field.

9. The system as claimed in claim 1, wherein the mobile communication network is one of an Ix EV-DO system, an IS-95 system, a CDMA2000 IX system, a WCDMA system, a GSM system, an Ix EV-DV system.

10. The system as claimed in claim 1, wherein the portable Internet network comprises: a radio access station (RAS) which is a network endpoint device and performs a function of delivering the data sent from the IP network to the hybrid terminal; and an access control router (ACR) which is connected to plural radio access stations, controls the radio access stations, and delivers the data sent from the IP network to a radio access station of an area at which the hybrid terminal is located.

11. the system as claimed in claim 1, wherein the inter-working termination server is connected to a home location register (HLR) of the mobile communication network and receives information about the hybrid terminal from the home location register.

12. A method for providing a data termination service used for reporting that a data termination request from an Internet network exists to a hybrid terminal supporting both a portable Internet service and a mobile communication service in an inter-working system of a portable Internet network providing the portable Internet service and a mobile communication network providing the mobile communication service, the method comprising the steps of:

(a) receiving the data termination request from the Internet network to the hybrid terminal and a wireless Internet connection identifier of the hybrid terminal;

(b) determining by an inter-working termination server information about the hybrid terminal and a mobile communication identifier matched with the wireless Internet connection identifier; (C) determining location information about the hybrid terminal through the mobile communication network by transmitting the mobile communication identifier from the mobile communication network;

(d) transmitting a paging message reporting that a data termination request from the Internet network exists to the hybrid terminal; and

(e) transmitting the data after determining connection of the hybrid terminal and the portable Internet network.

13. The method as claimed in claim 12, wherein, in step (b), the information about the hybrid terminal, the mobile communication identifier, and the wireless Internet connection identifier are determined using a hybrid terminal information database or a home location register (HLR) of the mobile communication network.

14. The method as claimed in claim 12, wherein step (b) comprises a step of determining by the inter-working termination server whether or not a terminal for the data termination request from the Internet network is the hybrid terminal.

15. The method as claimed in claim 14, wherein step (b) comprises the steps of:

(bl) transmitting a mobile communication identifier of the terminal to the mobile communication network;

(b2) transmitting a message reporting that the data termination request from the Internet network exists to the terminal; and (t>3) transmitting data through a packet data serving node after determining connection of the terminal and the mobile communication network, if it is determined that the terminal for the data termination request from the Internet network is not the hybrid terminal.

16. The method as claimed in claim 15, wherein, in step (b2), the data termination request from the Internet network is reported by using a short message, a voice message, and a multi-media message service (MMS) message.

17. The method as claimed in claim 12, wherein, in step (c), a mobile switching center determines the mobile communication identifier and then determines location of the hybrid terminal through a visitor location register (VLR) .

18. The method as claimed in claim 12, wherein, in step (d), the paging message is transmitted using a paging channel among radio channels formed between a base transmitter system of the mobile communication network and the hybrid terminal.

19. The method as claimed in claim 12, wherein, in step (d), a data termination request signal field is additionally created on a reserved field of the paging message, and contents of reporting that the data termination signal through the portable Internet network exits are stored in the data termination request signal field.

20. The method as claimed in claim 18, wherein, in step (d), contents of reporting that the data termination signal through the portable Internet network exits are stored on a message content field among a message length field, the message content field, and a cyclic redundancy check field of the paging message.

21. The method as claimed in claim 12, wherein, in step (e), if the hybrid terminal set for a mobile communication operation mode receives a paging message reporting that the data transmission request from the Internet network exists, the hybrid terminal changes an operation mode into a portable Internet operation mode and is connected to the portable Internet network.

22. The method as claimed in claim 12, wherein the mobile communication network is one of an Ix EV-DO system, an IS-95 system, a CDMA2000 IX system, a WCDMΔ system, a GSM system, an Ix EV-DV system.