KR20020070559A - An asynchronous IMT-2000 system for roaming data service between synchronous network and asynchronous network - Google Patents

Abstract

PURPOSE: A next generation asynchronous mobile communication system for data service roaming between synchronous IMT-2000(International Mobile Telecommunications-2000) and asynchronous IMT-2000, is provided to allow the provision of a packet data service, if a communication network subscriber in the synchronous(asynchronous) IMT-2000 performs roaming to a different system asynchronous(synchronous) IMT-2000. CONSTITUTION: A base station(31) performs wireless communication with a subscriber terminal. A base station controller(32) controls the base station(31). A mobile switch center(33) connected to the base station controller(32) configures a speech path of the subscriber and performs switching with other mobile switch systems or access to another communication network. A packet data access node(34) connected to the mobile switch center(33) is for data communication interworking with an external packet network. An HLR(Home Location Register,35) connected to the packet data access node(34) integrally manages information of asynchronous type subscribers associated with a data service and is responsible for authentication. A charging gateway(36) connected to the packet data access node(34) is responsible for charging. And an authentication/charging gateway(40) interworks with the HLR(35) and charging gateway(36), integrally manages information of synchronous type subscribers associated with the data service, and interworks with an integrated server performing authentication and charging.

Description

Next-generation asynchronous mobile communication system for roaming data services between synchronous and asynchronous mobile networks {An asynchronous IMT-2000 system for roaming data service between synchronous network and asynchronous network}

The present invention relates to a next generation asynchronous mobile communication system for roaming data services between a synchronous and asynchronous mobile network, and more particularly, to subscribers of an asynchronous (EH synchronous) IMT-2000 network in a synchronous (or asynchronous) IMT-2000 network. A next-generation asynchronous mobile communication system for providing a roaming data communication service.

In general, a synchronous IMT-2000 communication system, as shown in FIG. 1, is connected to a base station 11 performing wireless communication with a subscriber station, the base station 11, and controls a wireless link and a wired link, Is connected to the base station controller 12 and the base station controller 12 to perform the handoff function to maintain the continuity of the call while the mobile station is configured, and configures the subscriber's call path and exchanges with other exchanges or other communication networks. It is basically provided with an exchange station 13 for performing a connection, and the exchange station 13 is provided as a packet data communication network via a packet data connection node 14 which performs dynamic IP address allocation and routing functions. Connected to the Internet network 16, the packet data access node 14 and / or the switching center 13 collectively manage, authenticate and authenticate data service related subscriber information. The integrated server 15 which performs charging is connected.

As shown in FIG. 2, the asynchronous IMT-2000 communication system includes a base station 21, a base station controller 22, a switching center (or a radio access management system: referred to as SGSN) 23, and a packet data access node ( Or packet network interworking system: referred to as GGSN) 24, wherein the configurations 21-24 are different from the synchronous / asynchronous schemes compared to the configurations 11-14 of the same name in FIG. Except for performing the same function in terms of a comprehensive communication service function, the packet data access node 24 has a home location registrar (HLR) that manages and authenticates data service related subscriber information. 25) and a Charging Gateway (CG) 26 which is in charge of charging are connected.

When comparing the synchronous IMT-2000 communication system of FIG. 1 and the asynchronous IMT-2000 communication system of FIG. 2 described above, in the synchronous IMT-2000 communication system, subscriber information, authentication and billing related to data service are integrated in the integrated server 16. On the other hand, in the asynchronous IMT-2000 communication system, subscriber information and authentication related to data service are managed by the home location register 25 and billing is managed by the billing gateway 26, that is, subscriber management and authentication and billing. Since the schemes differ between the synchronous and asynchronous IMT-2000 systems, there is a problem that roaming of data services is practically impossible even for terminals that accommodate both synchronous and asynchronous modes.

SUMMARY OF THE INVENTION The present invention was created to solve the above problems, and an object thereof is to provide a packet data service when a subscriber of an asynchronous (or synchronous) IMT-2000 network roams to a synchronous (or asynchronous) IMT-2000 network of a different method. It is intended to provide a next generation asynchronous mobile communication system for roaming data services between synchronous and asynchronous mobile communication networks.

1 is a main configuration diagram of a general synchronous IMT-2000 communication system,

2 is a main configuration diagram of a general asynchronous IMT-2000 communication system,

3 is a block diagram of an asynchronous IMT-2000 system as a next generation asynchronous mobile communication system according to an embodiment of the present invention;

4 is a detailed block diagram of the authentication / billing gateway of FIG. 3;

5 is a message flow chart for explaining the operation of the asynchronous IMT-2000 system according to an embodiment of the present invention;

6 is a message flow diagram illustrating the termination of a data service in the operation of the asynchronous IMT-2000 system according to an embodiment of the present invention.

※ Explanation of code for main part of drawing

30: wireless access network 31: base station

32 base station controller 33 switching center

34: packet data access node 35: home location register

36: billing gateway 40: authentication / billing gateway

41: HLR linkage 42: CG linkage

43: manganese linkage

In order to achieve the above object, a next generation asynchronous mobile communication system for data service roaming between a synchronous and asynchronous mobile communication network according to the present invention comprises: a base station performing wireless communication with a subscriber station; A base station controller controlling the base station; An exchange station connected to the base station controller and constituting a subscriber's call path and performing exchange with another exchange or connection with another communication network; A packet data access node connected to the switching center for interworking data communication with an external packet network; A home location register connected to the packet data access node for integrated management and authentication of information of a corresponding asynchronous subscriber related to a data service; A charging gateway connected to the packet data access node to perform charging; And an authentication / billing gateway that interworks with the home location register and the charging gateway, and interoperates with an integrated server that integrates and manages the information of the corresponding synchronous subscribers related to data services in the synchronous mobile communication system and performs authentication and charging. It is composed.

The authentication / billing gateway may include: a first interlocking unit interworking with the home location register; A second interworking unit interworking with the charging gateway; And a third interlocking unit that interworks with the integrated server of the synchronous mobile communication system, exchanges authentication data and data service related information with the first interlocking unit, and exchanges billing data with the second interlocking unit.

Hereinafter, a next generation asynchronous mobile communication system for data service roaming between a synchronous and asynchronous mobile communication network according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram of an asynchronous IMT-2000 system as a next generation asynchronous mobile communication system according to an embodiment of the present invention. As shown in the figure, the base station 31, the base station controller 32, and the switching center 33 are shown. 1 is connected to the packet data access node 34, the home location register 35, the charging gateway 36, and the home location register 35 and the charging gateway 36, and interlocks with each other, and the synchronous movement of FIG. It is composed of an authentication / billing gateway 40 is connected to the integrated server 15 of the communication system to interwork.

In FIG. 3, the base station 31, the base station controller 32, the switching center 33, the packet data access node 34, the home location register 35, and the charging gateway 36 are the same name components of FIG. Since the configuration is the same as in (21-26), the description thereof will be omitted.

The authentication / billing gateway 40, as shown in Figure 4, the HLR interworking unit 41 to work with the home location register (HLR) 35; A CG interworking unit 42 interworking with the charging gateway (CG) 36; And interworking with the integrated server 15 of the synchronous IMT-2000 system of FIG. 1, exchanging authentication data and data service-related information with the HLR interworking unit 41, and receiving charging data with the CG interworking unit 42. A network interworking unit 43 for exchanging and receiving information and authentication and billing data of a subscriber related to data service between a synchronous network by the synchronous IMT-2000 system and an asynchronous network by the asynchronous IMT-2000 system. It consists of).

Next, the operation of the present invention will be described.

FIG. 5 is a message flow diagram illustrating the operation of an asynchronous IMT-2000 system according to an embodiment of the present invention as shown in FIG. 3, wherein the asynchronous IMT-2000 subscriber roams to a synchronous network of a synchronous IMT-2000 system for data service. For example, a solid line indicates a connection relationship between components, and a dotted line indicates a message flow, and a terminal of an asynchronous IMT-2000 subscriber accepts both asynchronous and synchronous communication modes. do.

In addition, for the convenience of description, the configuration of the synchronous IMT-2000 system uses FIG. 1 and the configuration of the asynchronous IMT-2000 system uses FIG. 3. In FIG. 1 and FIG. 3, the base stations 11 and 31 and the base station controller are used. (12,32) and the switching center (13,33) are collectively referred to as radio access network (10,30) and will be described below.

First, when the asynchronous IMT-2000 subscriber roams to the IMT-2000 synchronous network, and wirelessly requests a data service using the corresponding terminal 50 (S501), the signal is received through the wireless access network 10 as a medium. The packet data access node 14 is transferred (S502).

The packet data access node 14 requests authentication of the subscriber to the integration server 15 (S503). The integrated server 15 of the IMT-2000 synchronous network as a visited network requests authentication from the authentication / billing gateway 40 of the IMT-2000 asynchronous network as a home network (S504), and the authentication / billing gateway 40 Requesting authentication data to the home location register 35 through the manganese interlocking unit 43 and the HLR interlocking unit 41 (S505).

The home location register 35 transmits authentication data to the HLR linking unit 41 of the authentication / billing gateway 40 according to the request (S506), and the authentication / billing gateway 40 sends the HLR. Sending an authentication response message based on the authentication data to the integrated server 15 of the IMT-2000 synchronization network through the linking unit 41 and the network interworking unit 43 (S507), the integrated server 15 The packet data access node 14 transmits the received authentication response message to the packet data access node 14 (S508). The packet data access node 14 transmits the received authentication response message through the wireless access network 10 based on the received authentication response message. Accept the data service requested from the terminal 50 (S509).

In addition to accepting the service, the integrated server 15 notifies the authentication / billing gateway 40 of the billing start and starts billing each other (S510). From now on, the terminal 50 transmits data to the radio access network 10. Wireless transmission to receive a roaming data communication service via the IMT-2000 synchronization network (S511).

On the other hand, when the integrated server 15 and the authentication / billing gateway 40 starts charging at the same time in step S510, the authentication / billing gateway 40 to the billing gateway 36 the billing start message (S512) By providing the charge gateway 36 may charge as with the integrated server 15, which is useful for settlement with the integrated server 15 after the end of the charge. In other words, the billing may be performed by one of the integrated server 15 or the billing / authentication gateway 40, but may be performed at both sides simultaneously for mutually verified settlement. In addition, various billing methods may be implemented.

6 is a message flow diagram illustrating the termination of a data service in the operation of the asynchronous IMT-2000 system according to an embodiment of the present invention.

First, when the subscriber or the IMT-2000 synchronization network side requests data service termination (S601), the packet data access node 14 requests the termination of charging to the integrated server 15 (S602). When the integrated server 15 of the -2000 synchronous network ends the charging and requests the authentication / charging gateway 40 of the IMT-2000 asynchronous network to terminate the charging (S603), the authentication / charging gateway 40 When the charge is performed by itself, the billing data is transferred to the billing gateway 36, and if not, a billing termination message is forwarded to the billing gateway 36 to terminate billing (S604).

As described in detail above, according to the asynchronous IMT-2000 system as the next-generation asynchronous mobile communication system according to the present invention, the roaming data service between the synchronous and asynchronous IMT-2000 communication networks is created.

Claims (2)

In the next generation synchronous and asynchronous mobile communication system, A base station performing wireless communication with a subscriber station; A base station controller controlling the base station; An exchange station connected to the base station controller and constituting a subscriber's call path and performing exchange with another exchange or connection with another communication network; A packet data access node connected to the switching center for interworking data communication with an external packet network; A home location register connected to the packet data access node for integrated management and authentication of information of a corresponding asynchronous subscriber related to a data service; A charging gateway connected to the packet data access node to perform charging; And In addition to interworking with the home location register and the billing gateway, an authentication / billing gateway configured to interoperate with an integrated server that integrates and manages authentication and billing information of a corresponding synchronous subscriber related to data services in a synchronous mobile communication system. A next generation asynchronous mobile communication system for data service roaming between synchronous and asynchronous mobile communication networks. According to claim 1, The authentication / charging gateway, A first interlocking unit interworking with the home location register; A second interworking unit interworking with the charging gateway; And And a third interlocking unit for interworking with the integrated server of the synchronous mobile communication system, exchanging authentication data and data service related information with the first interlocking unit, and exchanging billing data with the second interlocking unit. Next-generation asynchronous mobile communication system for data service roaming between synchronous and asynchronous mobile communication networks.