KR100279556B1 - Signal transmission method through ultra high speed dedicated line - Google Patents

Abstract

The present invention provides a flexible high-speed dedicated line service providing system for providing a high-speed dedicated line service in a high-speed information communication network using an asynchronous transmission method (ATM) technology.

Subscriber service use The flexible, ultra-high speed dedicated line service providing system using hourly stamps can provide subscribers with high-speed leased line service up to 135Mbps, and symmetrical and asymmetrical service in bandwidth assignment in each direction according to the type of subscriber's request. It may be provided, and may have a periodic nature or may be provided on a subscriber's request for an unfixed high-speed dedicated line service.

Description

Signal transmission method through ultra high speed dedicated line

The present invention relates to an ultra-high speed dedicated line service providing system using an asynchronous transmission method (ATM) technology for a dedicated line service, and more particularly, to a signal transmission method using an ultra-high speed dedicated line using an hourly stamp of a subscriber service.

The leased line service currently used by corporations and public institutions is generally slower due to the limited speed that can be provided, according to a line service of a system that provides only low flexibility at a relatively small bandwidth. In terms of the service provider, the resources provided by the service provider cannot be effectively utilized through the existing synchronous transmission network (SDH network). In addition, since the leased line service requires a very expensive price, a considerable cost must be invested in the scale-up. This is because the existing dedicated line facility itself is inflexible in providing various high speed services.

Accordingly, there is a need for a high-speed and flexible system that can utilize a transmission network.

An object of the present invention is to provide a flexible high-speed leased line service providing system, a signal transmission method through a high-speed leased line that is a service that can accommodate a high-speed service symmetrically or asymmetrically at the time required by the subscriber. .

1 is a schematic explanatory diagram of a service providing procedure;

2 is a high-speed leased line service usage application flow chart,

3 is a diagram illustrating a procedure of generating a time stamp for use of a subscriber service according to the present invention;

4 is a high-speed dedicated service manager flowchart according to the present invention.

The present invention will be described with reference to Table 1 below to implement a flexible ultra-high speed dedicated line service providing system. Flexible high-speed dedicated line service providing system can be classified into fixed and non-fixed type, which always requires a constant bandwidth, depending on the subscriber's request, and can also be provided symmetrically and asymmetrically for each. In addition, the non-fixed type may be classified into a normal type and an irregular type according to whether or not there is a periodicity requiring the same bandwidth at the same time period during the subscription period.

<Table 1> High Speed Dedicated Line Service Classification

Service classification Symmetry Degree of change Explanation

Fixed type Symmetric Constant speed, bidirectional equal bandwidth

Asymmetric Constant speed, different bandwidth in different directions

Unfixed Symmetric Normal form Variable Speed, Bi-Directional, Periodic Use

Irregular Variable speed, bidirectional equal, aperiodic use

Asymmetric Normal form Variable speed, different bandwidth in different directions, periodic usage

Irregular Variable speed, different bandwidth in different directions, aperiodic usage

In Table 1, the fixed_symmetric ultra-high speed dedicated line service is basically the same as the existing dedicated line. However, ATM switching technology has the advantage that even if the demand for the input line increases significantly, the ATM switch can be easily expanded without additional equipment by simply adding a relay line. Asymmetric services, on the other hand, are easy to access, requiring high bandwidth on one side and low bandwidth on the other, such as the connection between the main office and branch offices.

Unfixed high-speed leased line service is suitable for financial services or data backup, where bandwidth use varies greatly with time. Unfixed_Regular Super High-Speed Dedicated Line Service is easy to work where data backup time is fixed, and Unfixed_Regular allows users to request services of various bandwidths as needed.

The general procedure of using the service will be described below with reference to FIGS. 1 and 2.

1 is a schematic diagram illustrating a service providing procedure, wherein a user of a high-speed leased line service describes information on subscriber information, using service, service use period, direction, and bandwidth according to a use application form designated by a service provider. (11), the service provider notifies the availability and, if possible, the date of opening, based on the form. If the subscriber notifies the subscriber of the fact that the circuit is opened by establishing or configuring the communication line (13), the subscriber performs the requested service during the period of use together with the opening confirmation (15), and the network operator according to the use thereof. Perform (17) operations and management tasks. On the other hand, if the service user applies for termination, the notice of termination (18) stops the service opening section.

The service using method of the flexible ultra-high speed dedicated line service providing system in the present invention will be described with reference to FIG.

FIG. 2 is a flowchart illustrating an application for using a high speed leased line service in the service providing procedure of FIG. 1. First of all, as a basic condition, the subscriber management system holds information on the usage status by service for all subscribers using the high-speed leased line service. Ask the administrator to allocate resources (20). And, according to the subscriber service usage time stamp, the ultra-high-speed dedicated service manager has a current value between t _max (maximum time for the super-only service manager to allocate resources) and t _min (minimum time for the high-speed dedicated service manager to allocate). The request for use of the resource is performed at the time (22).

The resource usage request and resource configuration manager update are performed between the high speed dedicated service manager 210 and the resource configuration manager 200.

3 illustrates a subscriber service usage time stamp generation procedure according to the present invention, and according to the flow of FIG. 3, the subscriber service usage time stamp is created by the subscriber management system 200.

Variables used to describe the subscriber service usage time stamp generation procedure according to FIG. 3 are described as follows.

Variable Description:

Bavail_fword: Available bandwidth of network from terminal to network

Bavail_bword: Useful bandwidth of network from terminal to terminal

Btotal_fword: Total bandwidth of network from terminal to network

Btotal_bword: Total bandwidth of network from terminal to terminal

Bneed_fword: Bandwidth required by the user from the terminal to the network

Bneed_bword: Bandwidth required from user to terminal in network

Btotal_need _fword: Total bandwidth that users need from the terminal to the network

Btotal_need _bword: Total bandwidth that users need from the network to the terminal

Bassign_need _fword: Bandwidth allocated from the terminal to the network direction

Bassign_need _bword: Bandwidth allocated by users to terminal in network

In FIG. 3, when generating a subscriber service use hourly stamp, a new subscriber may apply for a service subscription before the maximum time required to provide a service designated by a telecommunication service provider, that is, t _{dedicated provision_max} . (Step 310)

If the application for subscription is made, the resource is classified (step 340).

In step 340, if the subscriber applied for service use, a stamp is generated hourly and service is started according to the bandwidth. Initially, the total bandwidths for each direction that can be provided by a high-speed dedicated communication network are B _{total_fward} and B _{total_bward} . In addition, bandwidths already provided for the high-speed dedicated line service in each service providing exchange are B _{assign_fward} and B _{assign_bward} .

Here, the bandwidth provided by the available bandwidth is subtracted from the value provided by B _{avail_fward} , and for this B _{avail_bward} , new subscribers within the deducted bandwidth range are B _{need_fward} and B _{need_bward} values at the start time of service use t _x in step 350. When the time t _y ends, B _{need_fward} and B _{need_bward} are returned.

If the total subscriber's bandwidth usage exceeds the range allocated for the high-speed leased line service, a procedure for capacity expansion shall be performed (block 360). Thereafter, if a service modification request comes in before the maximum time t _{dedicated provision_max} necessary to modify and provide the service, the subscriber service usage time stamp may be modified according to the needs of the subscriber.

4 describes a procedure for providing and dismantling a high-speed leased line service to a subscriber. In FIG. 4A regarding resource allocation, the ultra-fast dedicated service manager reads the subscriber service usage hourly stamp (step 410).

For the value from the subscriber service usage hourly stamp, when the super high speed dedicated service manager reaches a range of time to allocate resources, the high speed dedicated service manager provides the connection manager 401 with necessary connection information and requests it (step 420). At this time, the connection manager notifies that the requested connection resource (bandwidth, VPI value, etc.) has been allocated through the interaction with the resource configuration manager 403 (step 430). The connection manager 401 works in conjunction with the resource configuration manager 403 to terminate and remove the resource.

On the other hand, in Figure 4b regarding the resource removal procedure, if the value read from the subscriber service hourly use time stamp is in the range of service demolition or collection time (step 450), the ultra-high-speed dedicated service manager requests the connection manager 405 to remove or collect it. (Step 460). The connection manager 405 works in conjunction with the resource configuration manager 407 to terminate and remove the resource. The collection here does not mean the end of the service, but means the end of each cycle in the fixed bandwidth service or the periodic dedicated service.

The ultra high speed dedicated line service according to the present invention can provide the high speed service symmetrically / asymmetrically at the time required by the subscriber, along with the provision of the existing dedicated line service, and provide it periodically or connect according to the needs of the subscriber. Has the function to change the bandwidth. As described above, the ultra-high speed leased line service providing system of the present invention has the following effects by assigning a time stamp with a procedure procedure.

O It can provide subscribers with high speed leased line up to 135Mbps.

O Depending on the type of subscriber's request, symmetrical and asymmetrical services can be provided for bandwidth assignment in each direction.

O It may be of a periodic nature or may be provided on a subscriber's request for an unfixed high-speed leased line service.

As described above, the present invention provides a dedicated line service using an asynchronous transmission method (ATM) technology in accordance with the needs of users and service providers, and reduces resource utilization and user cost by a system for providing a high speed dedicated line service. To get it.

Claims (3)

In the high-speed dedicated service, The resource allocation includes the steps of the administrator reading the subscriber service usage hourly stamp (step 410); When the high-speed dedicated service manager reaches a range of time required for allocating resources for the value from the subscriber service usage time stamp, the high-speed dedicated service manager provides the connection manager 401 with the necessary connection information and requests it (step 420). ; The connection manager notifies that the requested connection resource (bandwidth, VPI value, etc.) has been allocated through an interaction with the resource configuration manager 403 (step 430); The resource removal may include determining 450 that the value read from the subscriber service usage time stamp is in a range of service removal or collection time; The ultra-high speed dedicated service manager comprises the step (460) of performing a demolition or collection request to the connection manager (405). The method of claim 1, The resource allocation is classified into fixed and non-fixed types of services for each subscriber. And generating (460) the subscriber service usage regarding the service activation / deactivation time information of each subscriber by the hourly stamp. The method of claim 1, And said collecting step includes end of each period in service bandwidth change or periodic dedicated service in unfixed.