KR20000007396A - Primary rate interface method and device of integrated services digital network for remote access server - Google Patents

Abstract

PURPOSE: A primary rate interface device and a method of the integrated services digital network for a remote access server are provided to reduce the unnecessary redundancy by effectively using a resource inside an equipment. CONSTITUTION: The integrated services digital network has; an integrated service digital network access unit(101) to perform a process of an appropriate protocol by contacting with a subscriber of the integrated services digital network; a public telephone network access unit(103) to perform the process the appropriate protocol by accessing with a subscriber of a non-integrated services digital network; a modem process unit to process by inputting a data of the subscriber of the non-integrated service digital network among the data inputted from the integrated service digital network access unit and the public telephone network access unit.

Description

A method and apparatus for a primary network interface for a general information network for a remote access server

The present invention relates to a primary group interface of a general information communication network. In particular, the present invention relates to a method and apparatus for a primary group interface of a general information communication network for a remote access server, which provides a service for simultaneously accommodating a general information network subscriber and a non-integrated information network subscriber.

As the Internet is activated and equipment, installation costs, and installation spaces of Internet Service Providers (ISPs) become a problem, a remote access server (RAS) has been newly improved. Following the advent of remote access servers that primarily support public switched telephone networks for modem subscribers, integrated services digital networks were supported.

1 is a configuration diagram of a system for providing a service by dividing a conventional general information network subscriber and a non-integrated information network subscriber service, and FIG. 2 is a diagram of a conventional general information network subscriber and a non-integrated information network subscriber service. It is a schematic diagram of the system.

In providing a service in a conventional remote access server, modem subscriber information received from a public telephone network is transmitted to the modem processing unit 201 through the public telephone network connection 103, and the modem processing unit 201 transmits pure subscriber data through the modem protocol. Transfer to protocol processing section 105.

In this way, the case in which the subscriber connected to the integrated information communication network and the modem subscriber connected to the integrated information communication network were handled separately.

In the case of a subscriber to a comprehensive information network, data is transmitted directly to the protocol processing unit 105 through the integrated information network connection unit 101. In the case of a modem subscriber, data of a modem subscriber to the protocol processing unit 105 is passed through the modem processing unit 201. To pass. The protocol processing unit 105 processes a communication protocol such as Point-To-Point Protocol (PPP) and connects to the server connection unit 107 to access the server, and the server connection unit 107 connects to the server. Connection to allow information exchange between the subscriber and the service provider. In this case, however, even the protocol for subscribers to the comprehensive information network such as V.120 needs to be analyzed by the protocol processing unit 105, thereby increasing the redundancy of the protocol processing unit 105.

Therefore, since the protocol processing unit 105 that performs the high-speed protocol processing is required to centrally process all the protocols in one place, there is a disadvantage in that a separate processor for the amount of memory and the high-speed processing is required.

3 is a view showing the structure of a conventional general information network network primary group interface frame.

Primary Rate Interface (PRI) is composed of 32 channels (Time Slots (TS)). Each timeslot is used to convey subscriber information, which is called B-channel in the integrated digital communication service network. Of the 32 channels in total, 30 are used for the B-channel.

Time slot 0 contains frame information. That is, the frame information is used to recover information from the primary group interface receiving side while having maintenance information, alarm information, and the like. Time slot 16 is called a D-channel as a channel for transmitting signaling information. The D-channel is an information transmission path for carrying out call setup and release functions by transmitting a connection request of each subscriber. Therefore, the primary group interface of the integrated digital communication service network has a structure of 30B + D. On the primary group interface, there is a constant continuous primary group interface frame at a rate of 2.2048 Mbps.

The present invention is to solve the problems as described above, to provide a comprehensive information network primary group interface device and method for a remote access server to reduce unnecessary redundancy by effectively using the resources (resource) in the equipment For the purpose of

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention and the accompanying drawings.

1 is a configuration diagram of a system for providing a service by dividing a conventional comprehensive information network subscriber and a non-integrated information network subscriber service.

FIG. 2 is a configuration diagram of a system for providing a service by using a combination of a conventional general information network subscriber and a non-integrated information network subscriber service.

3 is a view showing the structure of a conventional general information network network primary group interface frame.

4 is a configuration diagram of a system for providing a mixed information service subscriber and a non-integrated information network subscriber service according to an embodiment of the present invention.

5 is a detailed diagram of a comprehensive information network connection unit according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

101: integrated information network connection 103: public telephone network connection

105: protocol processing unit 107: server connection unit

201: modem processing unit 401: comprehensive information network connection

403: public telephone network connection 405: modem processing unit

407: server connection 501: line connection

503: time switch unit 505: clock provider

507: control unit 509: protocol processing unit

511: packet bus connection unit 513: upper control unit

In order to achieve the above object, a preferred embodiment of a general information communication network primary group interface device for a remote access server according to the present invention, in the service of a general information communication network including a remote access server,

A comprehensive information network connection unit for accessing a comprehensive information network subscriber to perform a process for a corresponding protocol;

A public telephone network access unit for accessing a non-ITC subscriber to perform processing for a corresponding protocol;

A modem processing unit for receiving and processing data of a non-ITC subscriber from among data inputted from the general information telecommunication network connection unit and the public telephone network connection unit; And

And a server connection unit for connecting the subscriber and the server by using the processed protocol of the comprehensive information communication network connection unit and the modem processing unit.

In the present invention, the integrated information network connection unit for connecting to the integrated information network subscriber to perform a process for the protocol,

A line connection portion connected to a primary rate interface (PRI) line;

A clock providing unit configured to select and provide a reference clock from an input clock;

A packet bus connection unit for transmitting and receiving subscriber data in connection with a server connection unit;

A protocol processing unit for performing data processing on a D-channel to transmit and receive data to and from the packet bus connection unit;

A control unit performing an initialization function of the line connection unit, exchanging information with a protocol processing unit, and controlling a packet bus connection unit; And

It is preferable to further include a time switch unit for selecting a path for each time slot and performing a maintenance function according to the control unit.

And it is preferable that the line connection part includes a line interface unit and a framer.

Preferably, the protocol processing unit analyzes the information of the subscriber through the signal processing of the D-channel and distinguishes between the subscribers of the integrated information network or the non-integrated information network.

The controller may be connected to a controller of a higher system to determine whether a service can be provided.

A preferred embodiment of the integrated information communication primary group interface method for a remote access server according to the present invention comprises: a comprehensive information network connection unit for performing a connection of a comprehensive information network subscriber and processing a corresponding protocol;

A public telephone network connection unit for handling a non-ITC subscriber's connection;

A modem processing unit for processing data of non-integrated information network subscribers inputted from the integrated information network connection unit and the public telephone network connection unit;

Claims [1] An apparatus for providing a service for accommodating a comprehensive information network subscriber and a non-integrated information network subscriber at the same time, comprising a server connection unit connecting a corresponding server by using the processed protocol of the integrated information network connection unit and the modem processing unit.

Receiving subscriber data through the integrated information network connection and the public telephone network connection;

Determining whether service is available by connecting to a control unit of a higher system;

Extracting and analyzing a D-channel from the subscriber data;

Determining which protocol to use by the analysis;

Allocating an available B-channel;

Extracting pure subscriber data from the subscriber's protocol; And

Transmitting subscriber data to the server connection to provide a serviceable state.

In the present embodiment, in the step of extracting and analyzing the D-channel from the subscriber data, the D-channel is preferably extracted from timeslot 16 among the inputted subscriber data.

In the step of extracting pure subscriber data from the subscriber protocol, the pure subscriber data is preferably in the form of an IP (Internet Protocol) packet.

While the invention is susceptible to various modifications and alternative forms, only specific embodiments thereof are shown in the drawings and will be described in detail. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the specification, but rather that the invention is intended to cover all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to include.

Hereinafter, an apparatus and a method for providing a service for simultaneously accommodating an integrated information network subscriber and a non-integrated information network subscriber according to the present invention will be described with reference to FIGS. 4 and 5.

4 is a configuration diagram of a system for providing a mixed information service subscriber and a non-integrated information network subscriber service according to an embodiment of the present invention.

A comprehensive information network connection unit 401 for accessing a subscriber to a comprehensive information network, and performing processing for a corresponding protocol; a public telephone network connection unit 403 for performing a process for a corresponding protocol by connecting to a non-integrated information network subscriber; A modem processing unit 405 for receiving and processing data of non-ITC subscribers from data inputted from an access unit and a public telephone network connection unit, and connecting the subscriber to the corresponding server using the processed protocol of the integrated information network connection unit and the modem processing unit. The server connection part 407 is comprised. Therefore, it is possible to perform a protocol processing unit that performs a separate operation in the conventional information network connection unit and modem processing unit so as to reduce the duplication in the apparatus.

The detailed view of the integrated information network connection part provided with the protocol processing part is shown in FIG.

In the embodiment of the present invention, the subscriber data received through the line connection unit 501 is input to the protocol processing unit 509 through the time switch unit 503. The protocol processing unit 509 extracts and analyzes the integrated information communication network D-channel of timeslot 16 from the primary group interface of the received subscriber data. The result of the analysis is transmitted to the control unit 507. Accordingly, the control unit 509 exchanges information on whether the service can be provided with the control unit 513 of the upper system through Ethernet, and then it is determined whether the service can be provided.

The protocol processor 509 distinguishes between a comprehensive information network subscriber or a modem subscriber based on the extracted D-channel analysis result, and determines which protocol to use.

When it is confirmed that the subscriber is a comprehensive information network, the available B-channel is allocated. The controller 507 connects the timeslot to the protocol processor 509.

The protocol processing unit 509 extracts pure subscriber data in the form of IP (Internet Protocol) through the subscriber protocol and transfers the data to the packet bus connection unit 511. The packet bus connection 511 communicates with the server connection 407 and transmits subscriber data to the server connection 407 so that a service can be provided.

In another embodiment of the present invention, subscriber data in the form of IP packets received from the server connection unit 407 is input to the protocol connection unit 509 via the packet bus connection unit 511, and the destination is determined by the protocol connection unit 509. The service is applied through the time switch unit 503 and the line connection unit 501 by applying the subscriber's protocol.

In addition, if it is determined that the modem is a subscriber through the D-channel, an available B-channel is allocated, and the controller sets the corresponding time slot to be sent to the modem processing unit 405. At this time, the integrated information network connection unit 401 only performs signal processing for the D-channel and sets the time slot path. The subscriber's protocol processing is performed in the modem processing unit 405.

In another embodiment of the present invention, a method for providing a service for accommodating a general information network subscriber and a non-integrated information network subscriber at the same time includes receiving data of the general information network subscriber and the non-integrated information network subscriber, Connect to determine service availability.

After extracting and analyzing the D-channel from the subscriber data, the protocol determines which protocol to use. It also allocates a usable B-channel and extracts pure subscriber data from the subscriber protocol. At this time, the pure subscriber data is in the form of an IP (Internet Protocol) packet.

Send subscriber data to the server connection to make service available.

According to the present invention operating as described above the following effects can be obtained.

First, there is no need to install a separate protocol processing unit, reducing unnecessary space and cost.

Second, the structure of the system is simplified.

Third, since each protocol is distributed and processed for each application service, redundancy is reduced.

Fourth, modification and supplementation in the board can be made without affecting the system itself to accommodate various protocol needs of subscribers.

Fifth, in utilizing as a small device, all the functions can be implemented in one board under the condition of accommodating only the subscriber to the comprehensive information network.

Claims (8)

Comprehensive information network access means for accessing a comprehensive information network subscriber to perform a process for a corresponding protocol; Public telephone network access means for accessing a non-ITC subscriber to perform processing for a corresponding protocol; Modem processing means for receiving and processing data of a non-ITC subscriber from among data inputted from the general information communication network access means and the public telephone network access means; And And a server connection means for connecting a subscriber to the corresponding server by using the processed protocol of the integrated information network access means and the modem processing means. The integrated information network access means according to claim 1, wherein the integrated information network access means for connecting to the integrated information network subscriber to perform a process for the corresponding protocol is performed. Line connecting means for connecting with the primary group interface line; Clock providing means for performing a function of selecting and providing a reference clock from an input clock; Packet bus connection means for connecting to the server connection means for transmitting and receiving subscriber data; Protocol processing means for transmitting and receiving data to and from the packet bus connection means by performing signal processing on a D-channel; Control means for performing an initialization function of the line connection means, exchanging information with a protocol processing unit, and controlling a packet bus connection means; And a time switch means for selecting a path for each time slot according to the control means and performing a maintenance function. 3. The apparatus of claim 2, wherein the line connecting means comprises a line connecting unit and a framer. The integrated information network for a remote access server according to claim 2, wherein the protocol processing means analyzes the information of the subscriber through signal processing of the D-channel and distinguishes between the integrated information network subscriber and the non-integrated information network subscriber. Army interface device. 3. The apparatus of claim 2, wherein the control means connects with a control unit of a higher system to determine whether a service can be provided. Comprehensive information network access means for performing a connection of the integrated information network subscriber and processing a corresponding protocol; Public telephone network access means for processing a connection of a non-ITC subscriber; Modem processing means for processing data of non-integrated information network subscribers inputted from the integrated information network connecting means and the public telephone network connecting means; Claims [1] An apparatus for providing a service for accommodating a comprehensive information network subscriber and a non-integrated information network subscriber simultaneously comprising a server connection means for connecting a corresponding server by using the processed protocol of the integrated information network access means and a modem processing means. Receiving subscriber data via the comprehensive information network connection means and the public telephone network connection means; Determining whether service is available by connecting to a control unit of a higher system; Extracting and analyzing a D-channel from the subscriber data; Determining which protocol to use by the analysis; Allocating an available B-channel; Extracting pure subscriber data from the subscriber's protocol; And transmitting subscriber data to the server connection means to provide a serviceable state. 7. The method according to claim 6, wherein in the step of extracting and analyzing the D-channel from the subscriber data, the D-channel is extracted from timeslot 16 among the inputted subscriber data. 2. The method of claim 1, wherein in the step of extracting pure subscriber data from the subscriber protocol, the pure subscriber data is in the form of an Internet Protocol (IP) packet.