KR100737524B1 - Method and system for setting bandwidth of access network based on terminal of subscriber, and subscriber terminal using the same - Google Patents

Abstract

When the subscriber uses a service whose band is not known in advance, such as a P2P service, the present invention provides a method and system for setting a bandwidth in an access network based on a subscriber station, which reserves resources in the network by identifying the traffic of the corresponding service. The present invention relates to a P2P server, transmits a P2P service connection request signal to the P2P server, receives a P2P service acceptance signal from the P2P server, and provides an IP address of the P2P server and a port number for a P2P service. After setting the socket to complete the packet reception for the P2P service, receive the P2P packet through the access network, extract the P2P service band based on the statistical information included in the received P2P packet, The service band allocation request signal is transmitted to the access network based on the extracted P2P service band. In the access network to set up a P2P service bandwidth.

P2P, access network, subscriber station, band, agent, daemon agent

Description

METHOD AND SYSTEM FOR SETTING BANDWIDTH OF ACCESS NETWORK BASED ON TERMINAL OF SUBSCRIBER, AND SUBSCRIBER TERMINAL USING THE SAME}

1 is a diagram illustrating a connection configuration for setting a band of an access network based on a subscriber station in a P2P service according to an embodiment of the present invention.

2 is an internal configuration diagram of a subscriber station according to an embodiment of the present invention.

3 is a flowchart illustrating a procedure for setting a band of an access network based on a subscriber station according to an embodiment of the present invention.

4 is a diagram illustrating a process of receiving a packet of a P2P service from a terminal according to an embodiment of the present invention and delivering it to an application program of a P2P service and an agent in charge of the function of the present invention.

5 is a signal flowchart illustrating a band setting method in a subscriber station based access network according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: subscriber station 12: agent module

14: band information processing module 16: transmit and receive processing module

20: access network

When the subscriber uses a service whose band is not known in advance, such as a P2P service, the present invention provides a method and system for setting a bandwidth in an access network based on a subscriber station, which reserves resources in the network by identifying the traffic of the corresponding service. And it relates to a subscriber station implementing the same.

With the development of wired and wireless Internet technology, systems for efficient sharing and exchange of personal information through the Internet are emerging one after another. These systems are mostly Peer to Peer (P2P) as a networking technology for sharing distributed information. P2P refers to a network where both clients are connected via a central server or directly connected to share resources of both hardware, software, and content. The background of such P2P is the spread of broadband Internet due to technical and environmental factors and the popularization of high speed internet service. In particular, the rapid improvement of PC performance breaks down the limitations and costs of the existing client-server model of server-intensive model and contributes to the growth of P2P.

However, P2P service accounts for more than 70% of the total traffic and increases the congestion of the network. In addition, bands can be statically set in advance for known peers, but dynamic band setting is possible only when a P2P identification method is studied for unknown peers.

Meanwhile, one of the main components of network resources is bandwidth. As a method of allocating the band, in the case of a service in which a band is known in advance, a resource may be reserved in advance by requesting a network management block at the time of subscriber and service registration. However, in the case of general Internet services such as P2P, the bandwidth used cannot be known in advance. Accordingly, when subscriber stations connected to an access network through a P2P server receive the P2P service, there is a need for identifying a usage band.

However, the conventional P2P service was supported only to the extent that network resources are allowed in the subscriber's band range. That is, the existing P2P service uses the best effort (BE) service, and the subscriber station using the P2P service is not involved in the resource setting of the network. Therefore, in the case of the aforementioned P2P service, all flows used by the subscriber in the network must be analyzed in the network, the band used by the flow must be set, and the range of the band must be examined. As described above, the conventional P2P service has a problem of degrading network performance by increasing network complexity by centralizing all functions into network equipment.

The present invention has been proposed to solve the above-mentioned problems, and its purpose is to provide subscriber-based access network that can increase the stability and efficiency of network usage by allocating bands for unknown bands such as P2P services. The present invention provides a band setting method and system and a subscriber station implementing the same.

In addition, another object of the present invention is to set the bandwidth in the subscriber terminal-based access network that can efficiently utilize the resources by distributing the load and complexity of the access network to a large number of terminals with a margin to the subscriber's initiative to set the band A method and system, and a subscriber station implementing the same.

In accordance with another aspect of the present invention, there is provided a method for configuring a band of a subscriber-based access network, the method comprising: accessing the P2P server and transmitting a P2P service connection request signal to the P2P server; A second step of receiving a P2P service acceptance signal from the P2P server; Setting a socket with an IP address of the P2P server and a port number for a P2P service to complete a packet reception preparation for the P2P service; Receiving a P2P packet through the access network; Extracting a P2P service band based on statistical information included in the received P2P packet; And transmitting a service band allocation request signal to the access network based on the extracted P2P service band, wherein the access network includes a sixth step of setting a P2P service band.

In addition, the band setting apparatus of the subscriber-based access network according to the present invention for achieving the above object includes a P2P server for providing a P2P service to the subscriber terminal to be coupled through the access network; A subscriber station for extracting a P2P service band based on statistical information of a P2P packet received through the access network and transmitting a service band allocation request signal to the access network during the P2P service; And an access network configured to set a band of the P2P service by receiving a service band allocation request signal from the subscriber station.

In addition, the subscriber station according to the present invention for achieving the above object includes a transmission and reception processing unit for performing communication with the access network and the P2P server coupled to the access network; In the P2P service provided by the P2P server, the socket is set to the IP address of the P2P server and the port number for the P2P service to complete packet reception preparation for the P2P service, and the P2P packet is received from the access network through the transmission / reception processing unit. Receiving agent processing unit; And a band information processor for extracting a P2P service band based on statistical information of the P2P packet received by the agent processor and requesting band setting to the access network.

In addition, the recording medium on which the computer program recording the program according to the present invention for achieving the above object is recorded in the first step of transmitting a P2P service connection request signal to the P2P server; A second step of receiving a P2P service acceptance signal from the P2P server; Setting a socket with an IP address of the P2P server and a port number for a P2P service to complete a packet reception preparation for the P2P service; Receiving a P2P packet through an access network; Extracting a P2P service band based on statistical information included in the received P2P packet; And transmitting a service band allocation request signal to the access network based on the extracted P2P service band, so that the computer executes a sixth step of setting a P2P service band.

DETAILED DESCRIPTION Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. It should be noted that the same reference numerals and the same elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of an apparatus for setting a band of an access network based on a subscriber station in a P2P service according to an embodiment of the present invention.

Referring to FIG. 1, a band setting apparatus of an access network according to the present invention includes a subscriber station 10, an access network 20, and a P2P server 30.

The subscriber terminal 10 is connected to the Internet through a wired or wireless connection, and means a terminal such as a personal computer (PC), a PDA, or the like including hardware, a device driver, and an operating system program, and includes an agent according to the present invention. The P2P server 30 refers to a server that provides P2P service to the subscriber stations 10 through the access network 20, for example, a donkey, a pruna, and a petupia.

When the subscriber stations 10 use the P2P service through the access network 20, the agent for the terminal extracts and analyzes information on the P2P service traffic and requests that the service band be set in the network. The access network 20 includes a daemon agent, and the daemon agent performs a function of setting a bandwidth used by the agent of the subscriber station 10 to the network device.
In general, an access network 20 operates a network management server that manages network resources. The network management server may be implemented as a plurality of servers that handle respective functions in a distributed manner. In particular, among the plurality of servers, there is a bandwidth broker server that provides bandwidth management and configuration function, which is mounted on an access device constituting the access network 20 or as an independent server outside the access network device. It is implemented and has a daemon agent. The daemon agent sets the usage band required by the agent of the subscriber station 10 in the network device in such a manner that the subscriber station receives and analyzes the usage band allocation request message and allocates the usage band of the subscriber to the access device.
In this regard, the access network 20 of the present invention includes the daemon agent as described above, and the access network 20 performs the function of setting the use band required by the agent of the subscriber station 10 to the network device using the daemon agent. .

According to the present invention, it is possible to set a bandwidth of an access network by adding or supplementing a function at an application program level without changing hardware, device driver, and operating system program of an existing device. To this end, important features of the present invention are as follows.

First, the access network 20 requires a function for allocating a band required by the subscriber station 10 to the network, and a daemon agent may be added, or may be added to the control software for allocating and managing the band. Second, the subscriber station 10 includes an agent for a terminal that performs a function of requesting a daemon agent of the access network 20 by extracting and analyzing traffic information such as P2P.

In order to realize a method for reserving resources in a network by actively analyzing a band used by a subscriber station according to the present invention, three technical problems should be selected. First, the identification method for a peer which is not known in advance must be solved. This may be solved by binding and receiving a packet received from a peer's IP address by a daemon or agent, which analyzes and requests a bandwidth at the subscriber station 10.

Second, it is necessary to analyze what factors the subscriber station 10 should collect and extract in order to set the band. In order to configure network resources in the system of the access network 20, parameters such as bandwidth, loss, delay, delay jitter, etc. are required. However, in order to preferentially set only bandwidth information having a high ripple effect, band information (bps / s) may be first extracted using statistical information of a packet received at a peer IP address. In this case, the simplest method can calculate the band to be used by using an interval between two packets which are continuously received.

Third, it is necessary to analyze how much time the traffic information should be set by analyzing the traffic. Services that are used for a short time may be terminated before the band is analyzed and set up in the network. Therefore, the present invention is effective in the case where a large amount of traffic is used while using a large number of time services, and in this case, it should be able to be set when the traffic to be used enters a stable state to some extent.

On the other hand, in case of User Datagram Protocol (UDP), traffic can be set immediately, and in case of TCP (Transmission Control Protocol) packet, it can be set after connection establishment. .

2 is a block diagram illustrating an internal module of a subscriber station according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the subscriber station 10 according to the present invention includes an agent module 12, a band information processing module 14, and a transmission / reception processing module 16.

The agent module 12 sets a socket with an IP address of a P2P server and a port number for a P2P service to prepare for receiving a packet for a P2P service, and transmits a P2P packet from an access network through the transmission / reception processing module 16. Perform the function of receiving.

The band information processing module 14 collects statistical information using the P2P packet received from the agent module 12, derives a band of the access network based on the statistical information, and the transmission / reception processing module 16. It performs the function of requesting setting of P2P service band to daemon agent of access network through. In this case, the functions of the agent module 12 and the band information processing module 14 may be integrated and may be executed by an agent included in the subscriber station 10.

Although not illustrated in FIG. 2, the subscriber station 10 may include a memory system, at least one central processing unit (CPU), and an input device coupled thereto to perform high speed operation. The central processing unit includes an Arithmetic Logic Unit (ALU) for performing calculations, a register for temporary storage of data and instructions, and a controller for controlling the operation of the subscriber station. Central processing units include companies from Digital, including Alpha, MIPS Technologies, NEC, IDT, Siemens, MIPS, Intel, Cyrix, AMD, and Nexgen. It can be a processor with a variety of architectures, such as x86 and PowerPC from IBM and Motorola.

In addition, the input device includes a keyboard, a mouse, and the like. The mouse may include, for example, a physical transducer such as a touch screen or microphone.

3 is a flowchart illustrating a procedure for setting a band of an access network based on a subscriber station according to an embodiment of the present invention.

Referring to FIG. 3, a subscriber station first accesses a P2P server through an access network, transmits a P2P service request signal, receives a response signal thereto, and accesses a P2P service (S301).

When accessing the P2P service, the agent included in the subscriber station completes the packet reception preparation for the P2P service (S302). Thereafter, the agent of the subscriber station receives the P2P packet through the access network (S303), and extracts band information of the P2P service using statistical information of the received packet (S304). The method of receiving the P2P packet by the agent of the subscriber station in steps S302 and S303 will be described later in the description of FIG. 4.

The agent of the subscriber station requests the bandwidth setting to the daemon agent of the access network based on the extracted band information of the P2P service (S305). The daemon agent of the access network sets a band of the P2P service based on the band information included in the band setting request (S306).

Then, when the subscriber station terminates the P2P service (S307), the agent of the subscriber station terminates the set P2P service band by requesting the P2P service band cancellation to the daemon agent of the access network (S308).

4 is a diagram illustrating a method of delivering a received packet to an application program of a P2P service and an agent in charge of the present invention when receiving a packet of a P2P service according to an embodiment of the present invention.

Referring to FIG. 4, in order to determine a band used for a P2P service, an agent of the subscriber station 10 should receive P2P service packets from the access network 20 and manage statistical information. To this end, the agent must receive a packet from the subscriber station 10, which is possible by binding the agent by setting the IP address and TCP / UDP port number of the P2P server 30 as socket information. In this case, the operating system of the subscriber station 10 may deliver the same packet received from the access network 20 to the reception buffers of two application programs, namely, an agent and a P2P service program.

5 is a diagram illustrating an overall procedure for setting and canceling a band of an access network based on a subscriber station according to an embodiment of the present invention.

Referring to FIG. 5, the subscriber station 10 transmits a P2P service connection request signal to the P2P server 30 in order to request a P2P service connection (S501). The P2P server transmits a service acceptance message to the subscriber station (S502).

The agent of the subscriber station 10 creates a socket with a P2P server IP address and a P2P service port number and completes packet reception preparation (S503). The agent of the subscriber station 10 collects statistical information of the P2P service for one second for real time processing (S504). The agent of the subscriber station 10 derives a band of the P2P service based on the statistical information (S505).

The agent of the subscriber station 10 transmits a P2P service band allocation request message to the daemon agent of the access network 20 for band allocation of the P2P service (S506). The daemon agent of the access network 20 sets a band of the P2P service as a band of the P2P service included in the P2P service band allocation request message (S507). Thereafter, the daemon agent of the access network 20 transmits a band setting confirmation message to the subscriber station 10 to inform the band setting (508). Existing P2P service has received the best service from the network within the network resource limit. However, when the subscriber station 10 requests the bandwidth, the reserved P2P service uses resources of the reserved network. Can be guaranteed.

When the subscriber station 10 terminates the P2P service connection (S509), the agent of the subscriber station 10 transmits a P2P service band cancellation request message to the daemon agent of the access network 20 to terminate the P2P service band ( S510). At this time, the daemon agent of the access network 20 terminates the P2P service band to the device (S511), and transmits the P2P service band cancellation confirmation message to the agent of the subscriber station 10 (S512).

In order for the procedures to be performed, the agent of the subscriber station 10 needs to know when the subscriber station 10 connects the P2P service and when the service is terminated, the address of the P2P server, and port information of the P2P service. do. In order to solve this problem, the simplest method is to reserve a band of P2P service in the network and the subscriber who wants to guarantee the band informs the agent of the subscriber station 10 of information about the service that the subscriber intends to use and service start and end. You can do that. This is also related to the need for the present invention. That is, not all subscribers of the terminal 10 access the P2P service in this manner, but the subscriber may be provided with the service through the scheme of the present invention when the subscriber wants to guarantee the bandwidth even for the P2P service.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

According to the present invention as described above, the present invention has the advantage that the subscriber can reserve resources to the network for the P2P service that is increasing in weight, thereby reliably and efficiently utilizing the network resources without applying network load. have.

Further, according to the present invention, there is an advantage in that the bandwidth of the access network can be set based on the subscriber station by adding or supplementing a function at the application program level without changing the hardware, device driver, and operating system program of the existing device.

Claims (10)

A method for setting a band of an access network in a subscriber station which is combined with a P2P server through an access network, A first step of connecting to the P2P server and transmitting a P2P service connection request signal to the P2P server; A second step of receiving a P2P service acceptance signal from the P2P server; Setting a socket with an IP address of the P2P server and a port number for a P2P service to complete a packet reception preparation for the P2P service; Receiving a P2P packet through the access network; Extracting a P2P service band based on statistical information included in the received P2P packet; And And a sixth step of transmitting a service band allocation request signal to the access network based on the extracted P2P service band, and setting the P2P service band in the access network. The method of claim 1, The subscriber station includes an agent, and wherein the third to sixth steps are executed by an agent. The method of claim 1, wherein in the sixth step, The subscriber station transmits the service band allocation request signal to a daemon agent of an access network, and the daemon agent sets a P2P service band. The method of claim 1, When the P2P service is terminated, by transmitting a P2P service band cancellation request signal to the access network, the access network further comprises the step of canceling the P2P service band; Way. The method of claim 1, And a P2P service band is extracted using an interval between two packets continuously received in the fifth step. A P2P server providing a P2P service to a subscriber station joining through an access network; A subscriber station for extracting a P2P service band based on statistical information of a P2P packet received through the access network and transmitting a service band allocation request signal to the access network during the P2P service; And And an access network configured to receive a service band allocation request signal from the subscriber station and set a band of the P2P service. The method of claim 6, The subscriber station includes an agent, wherein the agent extracts a P2P service band based on statistical information of P2P packets received through the access network and transmits a service band allocation request signal to the access network. Band setting system of access based network. The method of claim 6, The access network includes a daemon agent, characterized in that the daemon agent receives the service band allocation request signal to set the band of the P2P service. A transmission / reception processor configured to communicate with an access network and a P2P server coupled with the access network; In the P2P service provided by the P2P server, the socket is set to the IP address of the P2P server and the port number for the P2P service to complete packet reception preparation for the P2P service, and the P2P packet is received from the access network through the transmission / reception processing unit. Receiving agent processing unit; And And a band information processor for extracting a P2P service band based on the statistical information of the P2P packet received by the agent processor and requesting band setting to the access network. A recording medium on which a computer program is recorded. A first step of connecting to a P2P server and transmitting a P2P service connection request signal to the P2P server; A second step of receiving a P2P service acceptance signal from the P2P server; Setting a socket with an IP address of the P2P server and a port number for a P2P service to complete a packet reception preparation for the P2P service; Receiving a P2P packet through an access network; Extracting a P2P service band based on statistical information included in the received P2P packet; And A recording medium on which a computer program is recorded, which transmits a service band allocation request signal to the access network based on the extracted P2P service band, and records the program for causing the computer to execute a sixth step of setting a P2P service band; .

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