KR101010197B1 - Apparatus and method for reducing delay of subscriber authentication - Google Patents

Abstract

We propose a dual modem and method that reduces subscriber authentication delay. The dual modem of the present invention includes a subscriber authentication information module for storing first communication subscriber authentication information and second communication subscriber authentication information; Receiving the second communication subscriber authentication information from the connected subscriber authentication information module, and authenticates the subscriber through communication with a second communication authentication server to provide a second communication service and the first communication subscriber authentication information is requested. A second communication modem unit for receiving and providing the first communication subscriber authentication information from a module; A first communication modem unit configured to receive the first communication subscriber authentication information and authenticate a subscriber through communication with a first communication authentication server to provide a first communication service; And a controller for requesting and providing the first communication subscriber authentication information to the second communication modem unit when the first communication subscriber authentication request is received, and providing the first communication subscriber authentication information to the first communication modem unit.

Dual Modem, Subscriber Identity Module, UICC, Wibro, HSDPA

Description

Dual modem and method with reduced subscriber authentication delay {APPARATUS AND METHOD FOR REDUCING DELAY OF SUBSCRIBER AUTHENTICATION}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual modem, and in particular, is required when switching services between Wibro communication services and communication services such as High Speed Downlink Packet Access (HSDPA) / High Speed Uplink Packet Access (HSUPA) / Code Division Multiple Access (CDMA). The present invention relates to a dual modem and a method for providing both HSDPA and Wibro communication services with reduced delay in subscriber authentication.

In the following description, communication services and communication networks such as HSDPA, HSUPA, CDMA, etc., are described using HSDPA as an example, but are not limited thereto. That is, the communication speed is slower than the Wibro communication service instead of the HSDPA communication service, but all the communication services that are serviced nationwide are applicable.

The general dual band modem is a modem that can be connected to both Wibro network and HSDPA network. In the Wibro service area, the dual band modem operates in Wibro mode with high data speed. It is a modem operating in HSDPA mode with a national network.

Dual modems have the advantage of providing Internet service in both heterogeneous networks. However, from a user's point of view, you do not need to know whether you are using the Internet or the HSDPA network. Since the user only needs to be good on the Internet, an important point in moving between heterogeneous networks is to provide a seamless communication service. In other words, there should be no interruption in data use when switching between heterogeneous networks.

In order to provide services by accessing a Wibro network or an HSDPA network in a dual modem, subscriber authentication is required. For this purpose, a subscriber authentication information module called a UICC (Universal Integrated Circuit Card) is required.

In general, dual modems use a single UICC for both Wibro and HSDPA communications. When a heterogeneous network switch occurs, the UICC physically falls from the Wibro modem to the HSDPA modem and vice versa. When switching in this manner, a phenomenon occurs in which power is temporarily turned off and then turned on in the UICC.

Since UICC is also a computer, when it is physically powered off and on, it undergoes a re-initialization process, which incurs a significant delay, which, from the user's point of view, is one of the factors that prevent the seamless use of the Internet. do.

The present invention provides a dual modem and a method for reducing subscriber authentication delay.

The present invention provides a dual modem and a method for providing both HSDPA and Wibro communication services with reduced delay in subscriber authentication required during service switching between High Speed Downlink Packet Access (HSDPA) communication service and Wibro communication service.

The present invention connects the subscriber information authentication module with the HSDPA modem unit, and receives the Wibro subscriber authentication information stored in the subscriber information authentication module through the HSDPA modem unit and performs the subscriber authentication procedure even when the Wibro modem unit authenticates the Wibro subscriber. Provided are a dual modem and a method for reducing delay caused by switching to Wibro communication.

A dual modem according to an embodiment of the present invention, the subscriber authentication information module for storing the first communication subscriber authentication information and the second communication subscriber authentication information; Receiving the second communication subscriber authentication information from the connected subscriber authentication information module, and authenticates the subscriber through communication with a second communication authentication server to provide a second communication service and the first communication subscriber authentication information is requested. A second communication modem unit for receiving and providing the first communication subscriber authentication information from a module; A first communication modem unit configured to receive the first communication subscriber authentication information and authenticate a subscriber through communication with a first communication authentication server to provide a first communication service; And a controller for requesting and providing the first communication subscriber authentication information to the second communication modem unit when the first communication subscriber authentication request is received, and providing the first communication subscriber authentication information to the first communication modem unit.

A method for reducing subscriber authentication delay in a dual modem according to an embodiment of the present invention includes: receiving a request for first communication subscriber authentication; Confirming the first communication subscriber authentication information stored in the subscriber authentication information module through a second communication modem unit; Authenticating a subscriber by transmitting the first communication subscriber authentication information to a first communication authentication server through a first communication modem unit; And when the subscriber authentication is completed, providing a first communication service.

The present invention provides a subscriber authentication information module for storing Wibro subscriber authentication information and HSDPA (High Speed Downlink Packet Access) subscriber authentication information; Receive the HSDPA subscriber authentication information from the connected subscriber authentication information module and authenticate the subscriber through communication with the HSDPA authentication server to provide the HSDPA communication service and the Wibro subscriber authentication information from the subscriber authentication information module when the Wibro subscriber authentication information is requested. HSDPA modem unit for receiving and providing; A Wibro modem unit which receives the Wibro subscriber authentication information and authenticates the subscriber through communication with a Wibro authentication server to provide a Wibro communication service; And a controller for requesting the Wibro subscriber authentication information from the HSDPA modem unit and receiving the Wibro subscriber authentication information and providing the Wibro subscriber authentication information to the Wibro modem unit. It reduces delay caused by initialization of subscriber authentication information module at the time of switch, thereby reducing seamless interference of communication.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. If it is determined that the gist of the present invention may be unnecessarily obscured, the detailed description thereof will be omitted.

An embodiment of the present invention relates to a dual modem and a method for providing both HSDPA and Wibro communication services with reduced delay in subscriber authentication required when switching services between a High Speed Downlink Packet Access (HSDPA) communication service and a Wibro communication service. In the following, a dual modem with reduced subscriber authentication delay will be described with reference to FIG. 1.

1 is a diagram illustrating a configuration of a dual modem with reduced subscriber authentication delay according to an embodiment of the present invention. Referring to FIG. 1, the system for subscriber authentication according to the present invention includes a dual band modem 100, a host 150, a Wibro authentication server 160, and a HADPA authentication server 170. Configure.

The dual modem 100 is connected to the host 150 by wire or wirelessly to provide a Wibro communication service or an HSDPA communication service to the host 150. The dual modem 100 includes a subscriber authentication information module 110, an HSDPA modem unit 120, a control unit 130, and a Wibro modem unit 140.

The subscriber authentication information module 110 stores Wibro subscriber authentication information and HSDPA (High Speed Downlink Packet Access) subscriber authentication information, and provides the stored Wibro subscriber authentication information and HSDPA subscriber authentication information to the HSDPA modem unit 120. The subscriber authentication information module 110 may be connected to the HSDPA modem unit 120 to operate or included in the HSDPA modem unit 120.

Wibro subscriber authentication information and HSDPA subscriber authentication information stored in the subscriber authentication information module 110 may be one subscriber authentication information for subscriber authentication of Wibro and HSDPA.

The HSDPA modem unit 120 receives the HSDPA subscriber authentication information from the connected subscriber authentication information module 110 and authenticates the subscriber through communication with the HSDPA authentication server 170 to provide the HSDPA communication service. In addition, when the Wibro subscriber authentication information is requested from the control unit 130, the Wibro subscriber authentication information is received from the subscriber authentication information module 110 and provided to the control unit 130.

Although the embodiment of the present invention provides the HSDPA communication service through the HSDPA modem unit 120. The invention is not limited to HSDPA communication services. That is, the communication speed is slower than the Wibro communication service, but all the communication services that are serviced nationwide are possible, for example, the High Speed Uplink Packet Access (HSUPA) communication service and the Code Division Multiple Access (CDMA) communication. Services.

When the Wibro modem unit 140 receives the Wibro subscriber authentication information from the control unit 130, the Wibro modem unit 140 transmits the Wibro authentication server 160 and provides communication between the host 150 and the Wibro authentication server 160 to perform the subscriber authentication procedure. Do it. Wibro modem unit 140 provides a Wibro communication service at the time of subscriber authentication. In addition, the Wibro modem unit 140 measures the Wibro signal strength at predetermined time intervals and provides the Wibro modem unit 140 to the controller 150.

In the embodiment of the present invention, but provides a Wibro communication service through the Wibro modem unit 140. The present invention is not limited to the Wibro communication service, but is serviced in a limited area, but all of the relatively fast communication services are possible as compared to the HSDPA communication service.

The controller 130 provides the Wibro signal strength measured by the Wibro modem unit 140 to the host 150 at predetermined time intervals. When the controller 130 receives Wibro subscriber authentication request from the host 150, the controller 130 requests and receives Wibro subscriber authentication information from the HSDPA modem unit 120, and provides Wibro subscriber authentication information to the Wibro modem unit 140. Thereafter, the controller 130 relays the transmission / reception signal to perform the subscriber authentication procedure between the host 150 and the Wibro authentication server 160 through the Wibro modem unit 140.

In addition, when the controller 130 receives the HSDPA communication connection request from the host 150 during the Wibro communication service, the controller 130 requests the HSDPA modem unit 120 to provide the HSDPA communication service.

The host 150 is a device including a user interface (UI) for controlling the dual modem 100 and may be a personal computer, a notebook, or a portable communication terminal. When the host 150 receives the Wibro signal strength higher than the preset signal strength from the dual modem 100 while receiving the HSDPA communication service, the host 150 determines that Wibro communication is possible, and the controller 130 of the dual modem 100 is provided. Request Wibro subscriber authentication. Thereafter, the host 150 performs a subscriber authentication procedure by communicating with the Wibro authentication server 160 and receives a Wibro communication service through the Wibro modem unit 140 of the dual modem 100 when the subscriber is authenticated.

In addition, when the host 150 receives the Wibro signal strength less than the preset signal strength from the dual modem 100 while receiving the Wibro communication service, the host 150 determines that the Wibro communication state is poor and thus the dual modem 100 The controller 130 of the request for the HSDPA communication connection.

The Wibro authentication server 160 receives Wibro subscriber authentication information and checks whether the subscriber subscribes in advance to receive the Wibro communication service.

The HADPA authentication server 170 receives the HSDPA subscriber authentication information and checks whether the subscriber has previously subscribed to receive the HSDPA communication service.

Hereinafter, a method for reducing subscriber authentication delay in a dual modem according to the present invention configured as described above will be described with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating a message flow and a processing process of a system for transceiving a communication service in a dual modem providing Wibro communication and HSDPA communication according to an exemplary embodiment of the present invention.

Referring to Figure 2 in the system for subscriber authentication with the dual modem 100 of the present invention, when switching from the HSDPA communication service to the Wibro communication service to the WiSD communication service to the HSDPA communication service and the operation and transmission and reception I will explain.

The host 150 receives the Wibro signal strength information M202 from the dual modem 100 at predetermined time intervals while receiving the HSDPA communication service in step S201 using the dual modem 100.

Thereafter, the host 150 checks whether Wibro communication is possible using the Wibro signal strength information M202 received in step S203, and if the Wibro communication is possible, transmits a Wibro subscriber authentication request (M204) to the dual modem 100. do.

The dual modem 100 receiving the Wibro subscriber authentication request (M204) checks the Wibro subscriber authentication information from the subscriber authentication information module connected to the HSDPA modem in step S205 through the HSDPA modem. Thereafter, the dual modem 100 transmits the Wibro subscriber authentication information checked in step S206 to the Wibro authentication server 160 and performs a Wibro subscriber recognition procedure between the host 150 and the Wibro authentication server 160.

If the dual modem 100 succeeds in subscriber authentication, the dual modem 100 provides the Wibro communication service to the host 150 in step S207. Thereafter, the dual modem 100 transmits Wibro signal strength information M208 to the host 150 at predetermined time intervals.

Then, the host 150 checks whether the Wibro communication is possible using the Wibro signal strength information (M208) received in step S209, and if the communication is not possible with a bad Wibro communication state, the HSDPA communication connection request is made to the dual modem 100. (M210) is transmitted.

The dual modem 100 receiving the HSDPA communication connection request (M210) checks the HSDPA subscriber authentication information from the subscriber authentication information module connected to the HSDPA modem unit in step S211. Then, the dual modem 100 transmits the HSDPA subscriber authentication information to the HSDPA authentication server through the HSDPA modem unit in step S212 to perform the subscriber authentication procedure. If the subscriber authentication is successful, the dual modem 100 provides the HSDPA communication service to the host 150 in step S213.

3 is a flowchart illustrating a process of converting a service from a dual modem to a Wibro communication service according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the dual modem of the present invention provides the HSDPA communication service to the host in step 301, and proceeds to step 302 to measure and transmit the Wibro signal strength to the host at predetermined time intervals.

Thereafter, the flow proceeds to step 305 to check whether the Wibro subscriber authentication request is received from the host. If it is confirmed that the Wibro subscriber authentication request is not received, the process returns to step 301.

In step 305, when the Wibro subscriber authentication request is received from the host, the dual modem proceeds to step 307 to receive Wibro subscriber authentication information from the subscriber authentication information module through the HSDPA modem unit, and proceeds to step 309 to the Wibro subscriber through the Wibro modem unit. The authentication information is transmitted to the Wibro authentication server, and the host and the Wibro authentication server communicate with each other to perform the subscriber authentication procedure. If the subscriber authentication is successful in step 311, the Wibro communication service is provided.

4 is a flowchart illustrating a process of converting a service from a dual modem to an HSDPA communication service according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the dual modem of the present invention provides a Wibro communication service to a host in step 401, and proceeds to step 402 to measure and transmit Wibro signal strength to a host at predetermined time intervals.

In operation 405, the HSDPA communication connection request is received from the host. If it is determined that the HSDPA communication connection request is not received, the process returns to step 401.

If the HSDPA communication connection request is received from the host in step 405, the dual modem proceeds to step 407 to receive HSDPA subscriber authentication information from the subscriber authentication information module connected through the HSDPA modem unit. In step 409, the HSDPA modem unit receives HSDPA communication through the HSDPA modem unit. The subscriber authentication information is transmitted to the HSDPA authentication server to perform the subscriber authentication procedure. If the subscriber authentication is successful in step 411, the HSDPA communication service is provided.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

1 is a diagram showing the configuration of a dual modem with reduced subscriber authentication delay according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a message flow and a process of processing a system when a communication service is converted in a dual modem providing Wibro communication and HSDPA communication according to an embodiment of the present invention; FIG.

3 is a flowchart illustrating a process of converting a service from a dual modem to a Wibro communication service according to an embodiment of the present invention;

4 is a flowchart illustrating a process of converting a service from a dual modem to an HSDPA communication service according to an exemplary embodiment of the present invention.

Claims (16)

A subscriber authentication information module which stores first communication subscriber authentication information and second communication subscriber authentication information and provides the stored first communication subscriber authentication information and the second communication subscriber authentication information to a second communication modem unit; Receiving the second communication subscriber authentication information from the connected subscriber authentication information module, and authenticates the subscriber through communication with a second communication authentication server to provide a second communication service and the first communication subscriber authentication information is requested. The second communication modem unit for receiving and providing the first communication subscriber authentication information from a module; A first communication modem unit configured to receive the first communication subscriber authentication information and authenticate a subscriber through communication with a first communication authentication server to provide a first communication service; And And a controller for requesting and providing the first communication subscriber authentication information to the second communication modem unit when receiving a first communication subscriber authentication request, and providing the first communication subscriber authentication information to the first communication modem unit. The first communication is a communication serviced in a more limited area than the second communication, and the communication speed is relatively faster than the second communication. The second communication is a dual modem, characterized in that the communication speed is relatively slow compared to the first communication but the service is serviced in a wider area. The method of claim 1, The first communication modem unit measures the first communication signal strength, The controller may provide the measured first communication signal strength to a host at predetermined time intervals. The method of claim 2, And receiving the measured first communication signal strength and checking whether the first communication is possible, and if the first communication is possible, further comprising the host requesting the first communication subscriber authentication to the controller. . The method of claim 2, wherein the host, And receiving a second communication connection from the controller when the measured first communication signal strength received while receiving the first communication service is equal to or less than a preset reference value. The method of claim 1, wherein the control unit, And receiving the second communication connection request from the second communication modem unit to provide the second communication service. The method of claim 1, And the first communication subscriber authentication information and the second communication subscriber authentication information are the same subscriber authentication information. delete delete Receiving a first communication subscriber authentication request from a host in a dual modem; Confirming the first communication subscriber authentication information stored in the subscriber authentication information module connected by a second communication modem unit; Authenticating a subscriber by transmitting, by a first communication modem unit, the first communication subscriber authentication information checked through the second communication modem unit to a first communication authentication server; And Providing a first communication service when subscriber authentication is completed; The first communication is a communication serviced in a more limited area than the second communication, and the communication speed is relatively faster than the second communication. The second communication is a method of reducing subscriber authentication delay in a dual modem, characterized in that the communication speed is relatively slow compared to the first communication but serviced in a wider area. 10. The method of claim 9, Prior to receiving the first communication subscriber authentication request from the host, And measuring the first communication signal strength by the first communication modem unit at a predetermined time interval and transmitting the same to the host. The method of claim 10, wherein the host, And receiving the first communication signal strength, checking whether the first communication is possible, and requesting the first communication subscriber authentication if the first communication is possible. The method of claim 10, wherein the host, And receiving a second communication connection to the dual modem when the measured first communication signal strength received while receiving the first communication service is less than or equal to a preset reference value. . The method of claim 10, While providing the first communication service, Checking second subscriber authentication information stored in the subscriber authentication information module connected by the second communication modem unit when the second communication connection request is received; Authenticating a subscriber by transmitting the second communication subscriber authentication information to a second communication authentication server through a second communication modem unit; And And providing a second communication service when the subscriber authentication is complete. The method of claim 13, And the first communication subscriber authentication information and the second communication subscriber authentication information are the same subscriber authentication information. delete delete

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