KR200184058Y1 - Apparatus for subscriber line of point-to-multipoint in adsl by using usb - Google Patents

Abstract

The present invention is to implement a subscriber network device that implements a point-to-multipoint point of asynchronous digital subscriber line (ADSL) using USB. The present invention transmits / receives data from ADSL equipment of various subscribers, A central office that accepts an ATU-C card having a modem function for and is connected to other network equipment; An ATU-R connected to the central station through a telephone line and connected to a plurality of subscriber devices and a USB port in a point-to-multipoint manner to perform modem functions as a standalone ADSL device; By configuring a PC having a USB port connected to the ATU-R via a USB cable and performing a function of a subscriber device, there is no need to attach a separate NIC to the subscriber device, It is very easy to apply when configuring the network.

Description

Apparatus for subscriber line of point-to-multipoint in ADSL by using USB}

The present invention relates to a point to multipoint subscriber network device of an asynchronous digital subscriber line (ADSL) using a USB (Universal Serial Bus). The present invention relates to a point-to-multipoint subscriber network device of an asynchronous digital subscriber line using USB for configuring a small network with point-to-multipoint ADSL subscriber network.

In general, high bit rate digital subscriber line (HDSL) was developed to provide high-speed data communication service to corporate communication field, while ADSL was developed with video distribution service in mind. Therefore, ADSL supports transmission of different speeds in both directions, so that ADSL central station transmits 1.5Mbit / s (or 6Mbit / s) signal to each subscriber, and low speed control signal is transmitted from subscriber to central station. . At the same time, the same line can be used to provide transparent telephone service.

1 is a block diagram of a conventional asynchronous digital subscriber line (ADSL) system.

As shown therein, an ADSL terminal unit central office (ATU-C) 2, which is an ADSL modem card entering the central office 1; An ADSL Terminal Unit-Remote (ATU-R) 3 which is a standalone ADSL device connected to the ATU-C 2; A card type (4) (5) inserted into a slot of a PC (6) equipped with a NIC (Network Interface Card) -ADSL modem connected to the ATU-R (3); LAN (Local Area Network) 7 is connected to the ATU-R (3).

Thus, especially in the case of ATU-R (3), which is a standalone ADSL device, there is a device supporting one subscriber according to an application and a device supporting multiple subscribers such as Ethernet.

The central station 1 here accepts several ATU-C 2 cards and is connected to other network equipment. The ATU-C (2) transmits / receives data from ADSL equipment of various subscribers and has a modem function for the data. In addition, ATU-R (3) performs a modem function as an ADSL equipment connected to the subscriber equipment.

The operation of the conventional apparatus configured as described above is as follows.

First, the data coming down the telephone line from the ATU-C 2 of the central station 1 is received by the ATU-R 3 which is the ADSL device of the subscriber.

The received data then passes through the modem portion and is extracted to match the network environment of the subscriber device.

Thus, in the case of the NIC 4, it is delivered directly to the subscriber PC 6. In the case of the ADSL-NIC (5), which is a standalone ADSL device, the form of accommodating one subscriber is the same as that of the NIC (4), and the form of accommodating multiple subscribers uses data extracted from the standalone ADSL equipment. The function is sent to the server.

However, this conventional technology has a disadvantage in that a separate network interface card (NIC), such as an Ethernet card or an Asynchronous Transfer Mode (ATM) card, is required for each subscriber device at the ADSL device side at the subscriber side.

In this regard, the present invention is proposed to solve the conventional problems as described above, and an object of the present invention is to enable a small-to-multipoint network of point-to-multipoint ADSL subscriber networks using USB to be suitable for ADSL equipment. Accordingly, the present invention provides a point-to-multipoint subscriber network device for an asynchronous digital subscriber line using USB, which does not require attaching a separate network interface card to a subscriber device.

In order to achieve the above object, the point-to-multipoint subscriber network device of asynchronous digital subscriber line using USB according to the present invention,

A central station which transmits / receives data from ADSL equipment of various subscribers, receives an ATU-C card having a modem function for the data, and is connected to other network equipment; An ATU-R connected to the central station through a telephone line and connected to a plurality of subscriber devices and a USB port in a point-to-multipoint manner to perform modem functions as a standalone ADSL device; The technical configuration of the ATU-R having a USB port and a USB port connected through a USB cable and performs the function of the subscriber device.

1 is a block diagram of a conventional asynchronous digital subscriber line system,

2 is a block diagram of a point-to-multipoint subscriber network device of an asynchronous digital subscriber line using USB according to the present invention.

FIG. 3 is a detailed block diagram of the ATU-R in FIG. 2.

Explanation of symbols on the main parts of the drawings

10: concentration station 11: ATU-C

20: ATU-R 21: ADSL modem unit

22: multiplexing / demultiplexing unit 23: USB frame / deframe unit

24, 31: USB port 30: PC

Hereinafter, an embodiment according to the technical concept of the point-to-multipoint subscriber network device of the asynchronous digital subscriber line using the present invention USB as described above is as follows.

2 is a block diagram of a point-to-multipoint subscriber network device of an asynchronous digital subscriber line using USB according to the present invention.

As shown here, the central station 10 which transmits / receives data from ADSL equipment of various subscribers, receives an ATU-C 11 card having a modem function for the data, and is connected with other network equipment; ATU-R 20 connected to the central station 10 through a telephone line and connected through a plurality of subscriber devices 30 and a USB port 24 in a point-to-multipoint manner to perform modem functions as a standalone ADSL device. )and; And a PC 30 having a USB port 31 connected to the USB port 24 of the ATU-R 20 via a USB cable and performing a function of a subscriber device.

In the above, the ATU-R 20, as shown in Figure 3, is connected to the central station 10 by a telephone line, the signal of the central station 10 to the appropriate form of data according to the application network (Application Network) An ADSL modem unit 21 for extracting and modulating the data received from the multiplexing / demultiplexing unit 22 and transmitting the modulated data to the central station 10; A multiplexing / demultiplexing unit 22 for demultiplexing the data extracted by the ADSL modem unit 21 and multiplexing the data of the USB frame / deframe unit 23; A USB frame / deframe section (23) for making the demultiplexed data of the multiplexer / demultiplexer (22) into a USB frame and deframe the USB frame input from the USB port (24) to extract data; USB frame data of the USB frame / deframe unit 23 is transmitted to the PC 30 through a USB cable, and USB data of the PC 30 input through the USB cable is transferred to the USB frame / deframe unit. It consists of the USB port 24 which transmits to (23).

The operation of the point-to-multipoint subscriber network device of the asynchronous digital subscriber line using USB according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, the configuration of the present invention is the same as the conventional configuration from the central station 10 to the standalone ADSL equipment ATU-R (20), by configuring the USB port 24 to the ATU-R (20) standalone ADSL equipment In addition, the USB port 24 of the ATU-R 20 as a standalone ADSL device is connected to the USB port 31 of the PC 30 as a subscriber device with a USB cable.

Therefore, the operation from the central station 10 to the ATU-R 20 which is a standalone ADSL device is the same as the conventional operation.

And the difference from the prior art, as shown in the internal configuration of Figure 3, receives the data extracted from the ADSL modem unit 21, demultiplexed in the multiplexing / demultiplexing unit 22, and demultiplexed data USB frame / The deframe unit 23 converts the data into a USB frame structure and sends the same to the USB port 31 of the subscriber PC 30 through the USB port 24. On the contrary, the USB frame received from the USB port 31 of the subscriber PC 30 is input through the USB port 24, and the data is extracted by performing the deframing in the USB frame / deframe unit 23, and multiplexing / The data extracted by the demultiplexer 22 is multiplexed and transmitted by the ADSL modem unit 21 to the central office 10 through the telephone line.

This operation is described in more detail as follows.

First, the down channel, that is, the process sent from the central station 10 to the subscriber side 30 is modulated from the apparatus of the central station 10, and the data down the telephone line is transmitted from the ATU-R 20, which is a standalone ADSL device. Will receive. Received data is extracted as appropriate data according to the application network (Application Network) through the ADSL modem unit 21, these data are sent to each USB framer 23 to make a USB frame to the PC 30 It is sent to the USB port 31. The subscriber's PC 30 receives the USB frame data through the USB port 31 and extracts the data to process the data in software.

On the other hand, the upstream channel, i.e., the process sent from the subscriber side 30 to the central station 10, carries data on the USB frame while passing through the USB port 31-acting as a master-in each subscriber PC 30. Send to ATU-R (20) which is a type ADSL equipment. Each USB deframer 23 in the ATU-R 20, which is a standalone ADSL device, receives the USB frame data, extracts the data, and multiplexes the multiplexer 22 to the ADSL modem unit 21. In addition, the ADSL modem unit 21 modulates the received data and sends the data to the central station 10 equipment through the telephone line.

As such, the present invention is to configure a small network using point-to-multipoint ADSL subscriber network using USB to be suitable for ADSL equipment.

While the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Today's USB has a distance limit (about 4 to 5 meters), and if you can overcome this distance limit, you can easily build larger networks. Therefore, the above description does not limit the scope of the present invention defined by the limits of the following utility model registration claims.

As described above, since the point-to-multipoint subscriber network device of the asynchronous digital subscriber line using USB according to the present invention only needs a USB port and a USB cable, a separate network interface card (NIC) is not attached to the subscriber device. Become effective.

In addition, the present invention can be very easily applied when configuring a small network such as SOHO (Small Office / Home Office), which is used when general communication using multiple PCs is used, using ADSL equipment. There is also an effect.

Claims (2)

A central station which transmits / receives data from ADSL equipment of various subscribers, receives an ATU-C card having a modem function for the data, and is connected to other network equipment; An ATU-R connected to the central station through a telephone line and connected to a plurality of subscriber devices and a USB port in a point-to-multipoint manner to perform modem functions as a standalone ADSL device; Point-to-multipoint subscriber network device of asynchronous digital subscriber line using USB, characterized in that the USB port of the ATU-R and a USB port connected through a USB cable, and configured to perform a function of the subscriber device. The method of claim 1, wherein the ATU-R, An ADSL modem unit connected to the central station by a telephone line, extracting a signal of the central station into data of an appropriate type according to an application network, and modulating the data received from the multiplexing / demultiplexing unit to transmit the data to the central station; A multiplexer / demultiplexer which demultiplexes the data extracted by the ADSL modem unit and multiplexes data of the USB frame / deframe unit; A USB frame / deframe unit for extracting data by making the demultiplexed data of the multiplexer / demultiplexer into a USB frame and deframes the USB frame input from the USB port; And a USB port for transferring the USB frame data of the USB frame / deframe unit to the PC through a USB cable and transferring the USB data of the PC input through the USB cable to the USB frame / deframe unit. Point-to-multipoint subscriber network device of asynchronous digital subscriber line using USB.