KR100882216B1 - System and Method for Wireless Intranet Service Based on Portable Internet - Google Patents

Abstract

The present invention relates to a wireless intranet service system and method using a portable Internet network.

In order to achieve the above object, the present invention provides an intranet server which provides data according to a data request signal from a subscriber station or stores data provided from the subscriber station to provide information exchange function between subscriber stations of a group; A private access control router that analyzes a wireless Internet request signal from the subscriber terminal and provides a function of connecting the subscriber terminal to an intranet server or a portable Internet network; And a radio access station providing a signal transfer function between the subscriber station and the private access control router.

According to the present invention, it is possible to increase the security of a specific workplace, the member can easily and quickly access to the intranet server, the mobile Internet service provider can provide traffic that can be generated due to the excess capacity of the portable Internet network It can be suppressed.

Mobile Internet, WiBro, HPi, Private Network, Intranet, Private ACR

Description

System and Method for Wireless Intranet Service Based on Portable Internet}

1 is a configuration diagram schematically illustrating a portable internet system;

2 is a schematic view showing a wireless intranet service system according to a preferred embodiment of the present invention;

3 is a flowchart illustrating a wireless intranet service method according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: personal subscriber terminal 120: radio access station

130: access control router 140: IP network

150: home agent 160: authentication server

170: Internet network 180: workplace server

210: private access control router 220: intranet server

The present invention relates to a wireless intranet service system and method using a portable Internet network. More specifically, an additional private access control router and an intranet server are installed in the portable Internet system to establish a private wireless intranet system, and the connection to the private wireless intranet system and the external portable Internet according to the Internet request signal from the personal subscriber terminal. A wireless intranet service system and method for supporting all connections to a system.

As computer, electronic, and communication technologies have made rapid progress, various wireless communication services using wireless networks have been provided. The most basic wireless communication service is a wireless voice call service that provides a voice call to a mobile terminal user wirelessly, which can provide a service regardless of time and place. In addition, while providing a text message service to complement the voice call service, a wireless Internet service has recently emerged to provide an Internet communication service to a user of a mobile communication terminal through a wireless communication network.

As a result of the development of mobile communication technology, a service provided by a code division multiple access (CDMA) mobile communication system transmits data such as circuit data and packet data as well as voice service. It is developing into a multimedia communication service.

In recent years, with the development of information and communication, IMT-2000 (International Mobile Telecommunication 2000), a third generation mobile communication system that has been standardized by ITU-R (for example, CDMA2000 1X, 3X, EV-DO, WCDMA (WideBand CDMA)) Etc.) are commercially available. IMT-2000 is a CDMA 2000 1X, 3X, EV-DO, WCDMA (WideBand CDMA), etc., which is used in IS-95A and IS-95B networks by using the IS-95C network that has evolved from the existing IS-95A and IS-95B networks. It is a service that can provide wireless Internet at a transmission speed of up to 144 Kbps, much faster than the supportable data transfer rate of 14.4 Kbps or 56 Kbps. In particular, by using IMT-2000 service, it is possible to provide various multimedia services (AOD, VOD, etc.) at higher speed as well as improving existing voice and WAP service quality.

However, the existing mobile communication system has a limitation in providing high-speed wireless Internet due to a high base station construction cost and high usage rate of the wireless Internet, and a limited screen size of the mobile communication terminal. In addition, wireless local area network (WLAN) technology has limitations in providing public services due to problems such as radio wave interference and narrow coverage. Therefore, a high-speed portable Internet (WiBro: Wireless Broadband or HPi: High-Speed Portable internet) system that guarantees portability and mobility and can use a high-speed wireless Internet service at a low rate has emerged.

1 is a schematic diagram illustrating a portable Internet system.

The portable Internet system includes a personal subscriber station (PSS) 110, a radio access station RAS 120, and an access control router (PSS). ACR: Access Control Router, hereinafter referred to as 'ACR' 130, IP network 140, home agent (HA: Home Agent, hereinafter referred to as 'HA') 150, authentication server (AAA: Authentication, Authorization) , Accounting, hereinafter referred to as 'AAA' 160, an internet network 170, and a business server 180.

The PSS 110 is a terminal that uses a high-speed wireless Internet service by accessing a portable Internet system, and has a low power radio frequency (RF) / IF (intermediate frequency) module and controller function, service characteristics, and MAC (Media Access Control) according to a radio wave environment. It performs frame variable control function, handoff function, authentication and encryption function.

The RAS 120 is a base station of a portable Internet system and wirelessly transmits data received from the ACR 130 to the PSS 110, and includes a low power RF / IF module and controller function, OFDMA / TDD packet scheduling and channel multiplexing function, and service. MAC frame variable control, 50 Mbps high-speed traffic real-time control, handover function, etc. according to characteristics and propagation environment. In addition, the PSS 110 and RAS 120 has a 50 Mbps packet transmission modulation and demodulation function, a high speed packet channel coding function, a real time modem control function, and the like for data transmission.

ACR 130 is a packet access router that accommodates a plurality of RAS (120) and connects between RAS (120), handover control function between RAS 120, handover function between ACR (130), packet routing function, Internet It has a connection function and the like, and is connected to the IP network 140.

The IP network 140 is connected to the HA 150 and the AAA 160, and receives packet data from an external packet data service such as the Internet network 170 and transmits the packet data to the ACR 130.

The HA 150 performs routing for transmitting a packet transmitted from an external packet data service server such as the Internet network 170, and the AAA 160 performs charging for packet data used by the PSS 110. The connection from the PSS 110 is authenticated.                         

The workplace server 180 is a server installed for exchanging information between members in a specific workplace. The workplace server 180 is installed in connection with the Internet network 170, and operates a web site for wired access and wireless access built in a web language such as HTML (HyperText Markup Language) and WML (Wireless Markup Language). The web site has a URL address for access through the member's Internet network 170.

The portable Internet service through the portable Internet system configured as described above is a service using a common network used by an unspecified number.

On the other hand, in places such as companies, research institutes, schools and the military, private branch exchanges (PBXs) are installed and operated in order to facilitate calls generated between members. On-premises calls using a private exchange can be made by simply entering two or four digits instead of the commonly used seven to eleven digit buttons and maintaining security by making calls with the outside through a private exchange. Due to its safety, it has been used in various fields. In the following description, a group in which information is exchanged between certain members within a certain range, such as a company, a research institute, a school, an army, etc., is called a specific workplace.

As such, convenience and safety used in a private exchange are urgently required in a portable Internet system used in a specific workplace. That is, when the PSS 110 is connected to the workplace server 180 installed in the workplace within the specific workplace, the security server is connected to the workplace server 180 through the Internet network 170 used by the unspecified number. Therefore, there may be a vulnerability, and there is inconvenience in that PSS 110 needs to perform a complicated process of accessing the workplace server 180 again after connecting to the external internet network 170.

Accordingly, there is a demand for a wireless intranet service system that prevents leakage of important information in a specific workplace and provides a function for easily accessing the member to the workplace server 180.

In order to solve such a problem, the present invention provides a private wireless intranet system by additionally installing a private access control router and an intranet server in a portable internet system, and proceeding to the private wireless intranet system in accordance with an internet request signal from a personal subscriber station. It is an object of the present invention to provide a wireless intranet service system and method for supporting both a connection and an external portable Internet system.

In order to achieve the above object, the present invention provides a wireless intranet service system that provides information exchange service between subscriber terminals that are members of a group using a mobile Internet network within a group consisting of a plurality of subscriber terminals and limited to a certain region or network. An intranet server, which provides data according to a data request signal from a subscriber station or stores data provided from the subscriber station and provides an information exchange function between subscriber stations of a group; A private access control router (ACR) for analyzing a wireless Internet request signal from the subscriber station and providing a function of connecting the subscriber station to an intranet server or a portable Internet network; And a radio access station (RAS) for providing a signal transmission function between a subscriber station and a private access control router.

In addition, in order to achieve another object of the present invention, the present invention is a subscriber that is a member of a group to provide a data exchange service using a mobile Internet network within a group consisting of a plurality of subscriber stations and limited to a certain area or network. A wireless intranet service method using a private access control router connected to an intranet server for storing data with a terminal, the method comprising: (a) receiving a wireless internet request signal from a subscriber terminal; (b) determining whether the wireless Internet request signal is an intranet access request signal, and if the intranet access request signal is assigned, assigning a private IP to the subscriber station; (c) connecting the subscriber station and the intranet server using a private IP; And (d) transferring data between the subscriber station and the intranet server.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 is a schematic diagram of a wireless intranet service system according to a preferred embodiment of the present invention.

The wireless intranet service system according to the present invention additionally requires a private ACR 210 installed between the RAS 120 and the ACR 130, and includes an intranet including both a function of the business server 180 and an intranet providing function. Server 220 is included in place of business server 180. That is, the wireless intranet service system includes the PSS 110, the RAS 120, the private ACR 210, and the intranet server 220.

Private ACR 210 is a small-capacity switching equipment installed in a specific workplace, accommodates a plurality of RAS 120 installed in a specific workplace, and provides a handover control function between the RAS (120). In addition, the wireless Internet request signal transmitted from the PSS 110 is analyzed, and when an intranet access request signal for accessing the intranet server 220 is transmitted, a private IP for accessing the intranet server 220 is allocated.

On the other hand, when the portable Internet connection request signal for accessing the portable Internet network, not the intranet server 220, is received, the PSS 110 is assigned to receive an IP for accessing the IP network 140 from the ACR 130. ACR 130 is connected.

Here, in transmitting an intranet access request signal for accessing the intranet server 220 from the PSS 110, if a specific application installed in the PSS 110 is executed, an intranet access request signal is transmitted, or the user transmits the PSS 110. It is possible to set to send an intranet connection request signal by selecting a network to be connected through a menu provided in.

In addition, the private IP used in the wireless intranet service system is typically set to have the same structure as the IP used in the IP network 140. That is, if the IP used to distinguish the PSS 110 in the IP network 140 is an IPv4 structure having a length of 32 bits, the private IP also uses an IPv4 structure, and the IPS 140 distinguishes the PSS 110 from the IP network 140. If the IP used for the purpose is an IPv6 structure having a length of 128 bits, it is common for a private IP to also use an IPv6 structure. However, when the number of PSSs 110 used in the wireless intranet service system is small, even if the IP network 140 uses IP of IPv6 structure, it is possible to use IP of IPv4 structure. On the other hand, the structure and function of IPv4 and IPv6 is well known to those skilled in the art, so a detailed description thereof will be omitted.

The intranet server 220 is a server installed for exchanging information among members in a specific workplace, and its function is similar to that of the workplace server 180. However, since the intranet server 220 is not connected through the internet network 170, it is not necessary to have a separate URL address.

However, if the intranet server 220 is set to be accessible to members or customers located outside, the intranet server 220 may be connected to the Internet network 170, and may have a separate URL address. In addition, the wireless intranet service system may include a workplace server 180 in addition to the intranet server 220, and may be configured to connect to the Internet network 170 through the workplace server 180.

Here, the wireless intranet service system requires an authentication system of a member to connect to the intranet server 220. The authentication system is most effectively included in the intranet server 220, but may be included in the private ACR 210 or installed as a separate device.

3 is a flowchart illustrating a wireless intranet service method according to an embodiment of the present invention.

First, the PSS 110 located in the wireless intranet service system transmits a wireless internet request signal for a wireless internet access request. The wireless internet request signal is classified into an intranet access request signal for accessing the intranet server 220 and a portable internet access request signal for accessing the external internet network 170. An intranet connection request signal or a portable Internet connection request signal is determined.

At this time, the PSS 110 transmits a SBC_REQ (PSS Basic Capability Request) to the RAS 120. SBC_REQ is a process in which the PSS 110 transmits capability information of the PSS 110 to the RAS 120 such as basic CID, parameters capable of supporting the physical layer, supportable bandwidth allocation parameters, and supportable authentication information. . Here, the field including the authentication information that can be supported by the PSS 110 in the SBC_REQ is composed of 8 bits, of which bits 2 to 7 are fields for setting other information.

Accordingly, the PSS 110 according to the present invention may be configured to include information for distinguishing the intranet access request signal from the portable Internet access request signal in the authentication information field of the SBC-REQ (S302).

The private ACR 210 determines whether the wireless internet access request signal is an intranet access request signal or a portable internet access request signal according to the transmitted SBC_REQ signal (S304), and if it is determined that it is an intranet access request signal, the intranet server 220. Or performs authentication on the PSS 110 through an authentication system included in the private ACR 210 or configured as a separate device, and allocates a private IP for access to the intranet server 220 (S306). .

PSS 110, which has been assigned a private IP, connects to intranet server 220 (S308), and then transmits and receives data included in intranet server 220 (S310). Through this process, the PSS 110 may be provided with a wireless intranet service.

When the PSS 110 is to be connected to the external Internet network 170 while receiving the wireless intranet service, the connection to the intranet server 220 is terminated, and then the portable Internet connection request signal is sent to the private ACR 210. Send it. Here, the termination of the connection with the intranet server 220 may be executed by the termination of a specific application or the user's selection (S312).

However, if it is determined in step S304 that the wireless internet access request signal transmitted from the PSS 110 is a portable internet access request signal, the private ACR 210 performs only a router function. That is, the private ACR 210 delivers a signal transmitted from the PSS 110 to the ACR 130, and performs only a simple function of delivering a signal transmitted from the ACR 130 to the PSS 110. Then, the authentication information received through step S302 is transmitted to the AAA 160 through the IP network 140, and the authentication signal received from the AAA 160 is transmitted to the PSS 110 (S316).

The PSS 110 receiving the authentication signal transmits a REG-REQ (Registration Request) signal requesting IP allocation and registration, and the ACR 130 receiving the REG-REQ sends the IP network 160 to the PSS 110. Allocates an IP for access (S318).

PSS 110 has been assigned IP is connected to the Internet network 170 via the IP network 160 (S320), and then connected to a plurality of CP (Contents Provider) server connected to the Internet network 170 to transmit and receive data (S322). Through this process, the PSS 110 may be provided with a portable Internet service.

If the PSS 110 is to be connected to the wireless intranet service system while receiving the portable Internet service, the intranet connection request signal is transmitted by executing a specific application or selecting a connection setting to the intranet server 220. The PSS 110 may be configured to delete an IP set for connection with the conventional IP network 140 when an intranet access request signal is generated (S324).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, a private wireless intranet system is established through a private ACR and an intranet server so that members of a specific workplace connect to an intranet server operated at the workplace through a private wireless intranet system without using the Internet network. As the data is transmitted and received, it is possible to block the risk that important information is leaked to the outside of a specific workplace, which has the advantage of further increasing the security, and the member can easily and quickly access the intranet server.

In addition, since ACR, IP network, HA, AAA, and Internet network occupied by the private wireless intranet system customers according to the conventional method are not used by the private wireless intranet system customers according to the present invention. There is a margin in the capacity of the portable Internet system, thereby having an effect that can suppress the traffic generated in the use of the portable Internet of other customers. As a result, the mobile internet service satisfaction of customers can be improved.

Claims (14)

A wireless intranet service system for providing information exchange service between subscriber stations which are members of the group using a portable Internet network within a group consisting of a plurality of subscriber stations, limited to a certain area or network, An intranet server providing the data according to a data request signal from the subscriber station or storing data provided from the subscriber station to provide information exchange function between the subscriber stations of the group; A private access control router (ACR) for analyzing a wireless internet request signal from the subscriber station and providing a function of connecting the subscriber station to the intranet server or a portable internet network; And Radio Access Station (RAS) providing a signal transfer function between the subscriber station and the private access control router Wireless intranet service system in a portable internet network comprising a. The method of claim 1, wherein the intranet server, A wireless intranet service system in a portable Internet network, characterized in that for operating a web site built in a web language of HTML (HyperText Markup Language) or WML (Wireless Markup Language) provided to the subscriber terminal. The method of claim 2, wherein the web site is And a subscriber station has a URL address for accessing through the portable internet network. The method of claim 1, wherein the intranet server, A wireless intranet service system in a portable internet network, characterized in that it comprises an authentication system for authenticating the subscriber station. The method of claim 1, wherein the private access control router, And a private IP for accessing the intranet server to the subscriber station in order to provide the wireless intranet service to the subscriber station. The method of claim 1, wherein the wireless Internet request signal, A wireless intranet service in a portable internet network comprising an intranet access request signal for requesting access of the subscriber station and the intranet server, and a wireless internet request signal for requesting connection between the subscriber station and the portable internet network. system. According to claim 1, The portable Internet network, An access control router (ACR) for allocating an IP used in the portable Internet network to the subscriber station; An authentication server (AAA: Authentication, Authorization, Accounting) for authenticating a connection from the subscriber station; A home agent (HA) for transmitting packet data transmitted from an external packet data service server; And An IP network connected to the home agent and the authentication server and delivering packet data from the Internet network to the access control router. Wireless intranet service system in a portable internet network comprising a. Private access control connected to an intranet server that stores data and a subscriber terminal that is a member of the group to provide a data exchange service using a portable Internet network within a group consisting of a plurality of subscriber stations, limited to a certain area or network. As a wireless intranet service method using a router, (a) receiving a wireless internet request signal from the subscriber station; (b) determining whether the wireless Internet request signal is an intranet access request signal, and if the intranet access request signal is assigned, assigning a private IP to the subscriber station; (c) connecting the subscriber station with the intranet server using the private IP; And (d) transferring data between the subscriber station and the intranet server; Wireless intranet service method in a portable Internet network comprising a. The method of claim 8, wherein step (a) comprises: And receiving the wireless internet request signal through SBC_REQ (PSS Basic Capability Request) transmitted from the subscriber station. The method of claim 9, wherein the SBC_REQ, Transmitting the wireless Internet request signal using the authentication information field among capability information including a basic CID field, a parameter field capable of supporting a physical layer, a supportable bandwidth allocation parameter field, and a supportable authentication information field A wireless intranet service method in a portable internet network, characterized in that. The method of claim 10, wherein the wireless Internet request signal, The wireless intranet service method of the portable Internet network, characterized in that included in bits 2 to 7 set to a field (Reserved Field) that can be set other information of the authentication information field. The method of claim 8, wherein step (a) comprises: The mobile Internet network, wherein the specific application of the subscriber station is executed or the wireless internet request signal is set as the intranet access request signal or the portable internet access request signal by direct selection of the group member through the subscriber terminal. Of wireless intranet services The method of claim 8, wherein after step (b): (b1) when the wireless internet request signal is a portable internet access request signal instead of an intranet access request signal, a portable internet network access step of connecting the subscriber terminal to the portable internet network; Wireless intranet service method in a portable Internet network comprising a. The method of claim 13, wherein step (b1), (b11) transmitting an authentication signal received from an authentication server (AAA: Authentication, Authorization, Accounting) to the subscriber station; (b12) assigning an IP used in the portable Internet network to the subscriber station in an access control router (ACR); (b13) the subscriber station accessing an internet network through an IP network; And (b14) transmitting and receiving data between the subscriber station and the internet network; Wireless intranet service method in a portable Internet network comprising a.

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