KR20020024860A - Apparatus for adapting to the internet by using a switching system - Google Patents

Abstract

PURPOSE: An Internet interface device using a full electronic exchange is provided to add a DSM(Dynamic Switching Module) switch having a TDM(Time Division Multiplex) system to a TDX(Time Division Exchange)-100, to configure a route for accessing the Internet, so as to quickly process every Internet traffic. CONSTITUTION: A subscriber line(100) comprises as follows. A modem(100) converts a digital signal into an analog signal, and converts an analog signal into a digital signal. An xDSL(x Digital Subscriber Line)(120) receives a high speed Internet service. An ASS(Access Switching Subsystem)(210) comprises as follows. An ASI(Analog Subscriber Interface)(212) performs an Internet interface of the modem(110) and generates a call signal. A DTI(Digital Trunk Interface)(214) performs an Internet interface through a PSTN(130), and generates a call signal. A TSW(Time SWitch)(216) performs an exchanging function for time slots. A DSM(218) enables a high speed data line, and processes multiplexing signals with a TDM system. An NI(Network Interface)(220) converts to TCP/IP. An SSW(Space SWitch)(250) performs a space division switching for time slot signals of the TSW(216). A splitter(300) separates signals of the xDSL(120) into voices and data.

Description

APAPATUS FOR ADAPTING TO THE INTERNET BY USING A SWITCHING SYSTEM}

The present invention relates to a method for processing high-speed Internet traffic in a TDX-100 switch, and in particular, a separate switch called DSM (Dynamic Switching Module), which is a TDM (Time Division Multiplex) type fast switch, is added to the TDX-100 switch. By providing a route that connects to the Internet, it is possible to provide an Internet matching device using an electronic switchboard that can process all Internet traffic at high speed.

The TDX-100 Switch is an international standard electronic switch for establishing ISDN, and is capable of exchanging all levels of PSTN (Local / Tandem) and local toll and ISDN. It was developed as a switch that can be flexibly applied in various network types such as (Integrated Services Digital Network), PCS (Personal Communication Service), and AIN (Advanced Intelligent Network).

In addition, the TDX-100 switch is developed by applying the latest technologies in the fields of computer, semiconductor, communication, and software, and is excellent system for all applications in terms of external size, performance, service flexibility, and adaptability to network environment. Modularity makes it easy to add and change functions, and can be easily applied to various network environments.

The TDX-1A, TDX-1B and TDX-10A will be replaced by the TDX-100 as described above as part of the TDX upgrade.

The Internet matching system using the TDX-100 switch as described above will be described with reference to FIG. 1.

The Internet matching device using the conventional TDX-100 switch includes a subscriber line 10 and a relay line PSTN 13, an ASS (Access Switching Subsystem) 20 of the TDX-100 switch, and an SSW (Space) of an Interconnection Network Subsystem (INS). SWitch: 30), splitter 40, DSLAM (Digital Subscriber Line Access Multiplex: 50), ATM (Asynchronization Transfer Mode) switch 60, gateway 70, and Internet 80.

The subscriber line 10 is composed of a modem 11 which is a low speed subscriber line and an x Digital Subscriber Line (xDSL) 12 which is a high speed subscriber line.

The ASS 20 is an analog subscriber interface (ASI) 21 for processing internet matching and calling signals of the modem 11, which is a low-speed subscriber, and a digital trunk for processing internet matching and calling signals, for the PSTN 13, which is a relay line. Interface: 22), TSW (Time SWitch: 23), and the like. It performs most call processing functions, self-operation and maintenance functions, and can be increased in units of ASS if necessary. The SSW 30 of the INS and the transmission medium are optically linked, which is called a data link.

The SSW 30 of the INS has a data link that connects the ASS 20 to a point-to-point, thereby communicating between the INS and the ASS 20. And, among the call processing functions, it performs a central function such as connecting a space switch.

The splitter 40 splits the signal of the xDSL 12, which is a high-speed subscriber line, into voice and data.

The DSLAM 50 receives data from voice and data separated by the splitter 40 and sends data to a high speed backbone line using a multiplexing technique.

The ATM switch 60 is a dedicated access switching technology that divides digital data into cells or packets and transmits them through a medium using digital signal technology.

The gateway 70 converts the protocol 11 into TCP / IP, which is a protocol that allows Internet access.

The operation of the Internet matching system using the TDX-100 switch having the above configuration will be described with reference to FIG. 2.

The subscriber connects to the TDX-100 switch via modem 11, which is a low-speed subscriber line, or xDSL 12, which is a high-speed subscriber line, for receiving Internet service.

In the ASS 20 of the TDX-100 switch, the subscriber line of the modem 11 or xDSL 12 is distinguished, and in the case of the modem 11 subscriber call, which is a low speed subscriber line, the TSW 23 of the TDM method is 64 kbps via the ASI 21. Data is sent back to the SSW 30, which is a space switch, at the same speed and exits the TDX-100 exchange. The data output via the TDX-100 switch is connected to the Internet 80 via a gateway 70 which is a protocol conversion device suitable for accessing the Internet.

On the other hand, in the case of the xDSL 12 subscriber call which is the high speed subscriber line, the splitter 40 separates the signal for accessing the Internet from the xDSL 12 which is the high speed subscriber line into voice and data.

The TDX-100 switch divides the signal separated by the splitter 40 into voice and data, and proceeds to the TSW 23 in the case of voice.

On the other hand, the data separated in the splitter 40 is converted to ATM by the DSLAM 50 to match with the fast switch ATM switch 60, and the ATM switch 60 gateways the data via the DSLAM 50 to the gateway. 70 converts into a protocol of the type connected to the Internet connection and connects to the Internet 80.

The system for internet matching using the conventional TDX-100 switch as described above wastes switch resources of the TDX because all switches match the Internet via the gateway 70 in the case of the modem 11 which is a low-speed subscriber. Not only does it interfere with the communication of voice subscribers, but also loads on the space switch SSW 30, which is a relay line connected to the gateway 70, to cause bottlenecks, and the DSLAM 50 may also be used for a high-speed subscriber xDSL 12 subscriber. And ATM switch 60 has to install and operate a separate equipment, there is a problem that is difficult to operate and maintain.

In addition, in order to accommodate the current rapidly increasing Internet traffic, existing telephone exchanges can only accept low-speed (modem) subscribers due to the speed limitations. When developing a new IP switch, the existing TDX exchange must be replaced. Uneconomical problems arise.

An object of the present invention is to solve the problems of the prior art, a separate switch called DSM (Dynamic Switching Module), which is a high-speed switch of the Time Division Multiplex (TDM) method is added to the TDX-100 switch to connect to the Internet. It is to provide an Internet matching device using an electronic switch that can be configured to handle all the Internet traffic at high speed

As a preferred embodiment for achieving this purpose, an interface for generating Internet matching and call signals of low-speed and high-speed subscribers and relay lines, a time switch (TSW) for exchanging time slots of the interface signals, and the TSW An electronic switch system having an SSW (Space SWitch) for spatially switching a signal, comprising: a separator for separating the Internet matching and call signals of the high-speed subscriber into voice and data, and a high-speed switching signal exchanged by the TSW. DSM (Dynamic Switching Module), and the Internet connection for converting a high-speed switched signal by the DSM into a protocol suitable for Internet access.

1 is a block diagram showing an Internet matching device using a conventional all-electronic exchange.

2 is an explanatory diagram of the operation of the Internet connection using the conventional Internet matching device.

3 is a block diagram showing an internet matching device using the all-electronic exchange of the present invention.

4 is an explanatory view of the operation of the Internet connection using the Internet matching device of the present invention.

<Description of the code | symbol about the principal part of drawing>

10, 100: subscriber line

200: TDX-100

20, 210: ASS (Access Switching Subsystem)

300: splitter

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a block diagram of an internet matching system using the TDX-100 according to the present invention.

As shown in FIG. 2, the configuration of a system for Internet registration using the TDX-100 includes an ASS 210 and an INS in the subscriber line 100, the relay line PSTN 130, and the TDX-100 switch 200. SSW 250, splitter 300 and the Internet (300).

Subscriber line 100 is a modem (110) which is a device for converting a digital signal from the computer to an analog signal (modulation) to be sent over the telephone line, and converts the analog signal received through the telephone line into a digital signal (demodulation) and It consists of xDSL (x Digital Subscriber Line: 120) which provides high speed internet service.

The ASS 210, which is equipped with the interface of the subscriber line 100 and the relay line PSTN 130 and performs most call processing functions and operations and maintenance, generates internet matching and call signals of the modem 110, which is an analog subscriber. ASI 212, DTI 214 for generating Internet matching and call signal to access the Internet through PSTN 130, which is a relay line, TSW 216 for exchanging time slots, and high speed data line DSM 218, which is a high-speed switch module of a time division multiplex (TDM) method capable of melt-plexing signal processing, and a network interface NI 220, which is an Internet connection that converts into TCP / IP, a protocol connected to an Internet connection. It consists of.

The SSW 250 of the INS serves to spatially switch the time slot signal of the TSW 218.

The splitter 300 splits a signal of the xDSL 120 into voice and data for receiving a high speed internet service.

An operation process of connecting to the Internet using the TDX-100 switch having the above configuration will be described with reference to FIG. 4.

The user connects to the ASS 210 of the TDX-100 switch 200 to access the Internet 300 through the subscriber line 100 or the PSTN 130 which is a relay line.

The TDX-100 switch 200 transmits to the TSW 216 via the ASI 212 which generates an Internet registration and call signal of the modem 110 subscriber line when the user attempts to connect through the modem 110 subscriber line. It is transmitted at 64kbps.

The modem 110 subscriber line via the TSW 216 converts the NI 220 into a TCP / IP protocol suitable for the Internet 300 connection via the DSM 218, which is a TDM fast switching module, at 512 kbp x N. Connect to the Internet 300.

On the other hand, when the user connects to the xDSL 120, which is a high-speed subscriber line, the splitter 300 separates voice and data from the Internet access signal of the xDSL 120.

The voice and data separated by the splitter 300 of the TDX-100 switch 200 are classified and connected to the Internet 300 via TSW 216-DSM 218-NI 220 in case of voice. do.

When the signal separated by the splitter 300 is data, the data is transmitted to the Internet 300 via the NI 220 that converts the TCP / IP protocol to the Internet via the DSM 218, which is a TDM fast switch module. Connect.

As described above, when accessing the Internet through the modem 110, which is a low-speed subscriber line, it does not occupy the SSW 250, which is a space switch, thereby reducing the load on a voice call, and the xDSL 120, which is a high-speed subscriber line, is also connected to the Internet. There is no need for a separate installation because there is no need for a separate device, DSLAM and ATM switch, which must pass through to connect.

The Internet matching system using the TDX-100 switch can accommodate xDSL, which is a high-speed subscriber line, while still using TDX series subscribers and relay lines.

As described above, according to the present invention, the present invention relates to a method for processing high-speed Internet traffic in a TDX-100 switch, and in particular, to a TDX-100 switch, a DDM (Time Division Multiplex) type high speed switch is a dynamic switch. Leveraging the existing telephone exchange system by providing an internet matching device using a TDX-100 switch, which adds a separate switch called a Switching Module and forms a route to the Internet to process all internet traffic at high speed. By enabling high-speed data service, it is not necessary to install a separate system for internet service, thereby achieving economical effect.

In addition, low-speed and high-speed subscribers can access the Internet without the need for gateways, DSLAMs, or ATM switches, resulting in economical and operational and maintenance benefits.

On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.

Claims (3)

Internet interface for low speed / high speed subscriber and relay line and generation of call signal, TSW (Time SWitch) for exchanging time slot of interface signal, SSW (Space SWitch) for spatial switching of signal of TSW In the all-electronic exchange system with A separator for separating the high-speed subscriber's internet matching and call signal into voice and data, A dynamic switching module (DSM) for rapidly switching signals exchanged by the TSW; And an Internet connection unit for converting a high speed switched signal by the DSM into a protocol suitable for Internet access. The method of claim 1, The DSM is an Internet matching device using an electronic switchboard, characterized in that a time division high speed switching module. The method of claim 1, wherein the DSM, Internet matching device using an electronic switch, characterized in that further comprises a function for high-speed switching data separated by the separator.