KR101530647B1 - Method and apparatus for processing traffic for service of high quality - Google Patents

Abstract

An apparatus for processing traffic for a high quality service processes packet traffic between a user terminal and a data service node through multiple additional service nodes built in an ISP network. The apparatus comprises: a communications quality obtaining unit obtaining communications quality information about a user terminal when a service request packet of an uplink traffic is received from the user terminal; a traffic route setting unit setting a traffic route distributing at least one additional node among the multiple additional service nodes to an additional service target node, based on the obtained communications quality information; and a packet distributing unit distributing the packet traffic between the user terminal and the data service node to the set traffic route.

Description

[0001] METHOD AND APPARATUS FOR PROCESSING TRAFFIC FOR SERVICE OF HIGH QUALITY [0002]

The present invention relates to a service technique for processing communication traffic, and more particularly, to a service technique for processing communication traffic by providing a high-quality service suitable for optimizing traffic processing in each additional service node (or additional service equipment) To a traffic processing method and apparatus thereof.

As well known, according to the development of the wireless Internet communication environment and the service and the technical development of the wireless terminal (portable terminal), the users can use the user terminal (e.g., mobile phone, smart phone, smart pad, ) Can be used to provide wireless Internet services such as moving pictures anytime and anywhere.

That is, users can access desired target servers through a user terminal owned by the users and receive desired Internet services according to a service policy in the network. To this end, a plurality of additional service equipments Service node or an additional service server) are configured as an ISP (Internet Service Provider) network.

At this time, each additional service equipment in the ISP network recognizes each user (or user terminal) or a specific application, and performs traffic management suitable for each traffic. To this end, each additional service equipment transmits a service request (Service request packet), the signaling is performed to obtain user information and service information, respectively, in cooperation with the service policy server in the network.

Here, the traffic management technology refers to traffic management such as how to process traffic of a user according to user information (subscriber information) and service policy information provided by a network, and how to process an application.

To this end, in the ISP network, traffic processing is performed so that all traffic (uplink traffic and downlink traffic between the portable terminal and the target server) flows to all the additional service devices built in the network.

However, the conventional traffic processing method that allows all traffic to flow to all the additional service devices installed in the ISP network causes a problem of causing an increase in the number of additional service equipment (expansion for increasing the performance of the additional service equipment) , And the problem of such equipment expansion eventually leads to an increase in the cost of constructing and managing additional service equipment.

Korean Patent No. 10-1053676, Published on July 29, 2011.

Unlike the conventional method in which all traffic flows in all the additional service devices installed in the ISP network, the present invention obtains the communication quality information for the user terminal when the service request packet is received, A new traffic classification and routing technique that can process packet traffic through a set traffic path after distributing one or more of a plurality of supplementary service nodes to additional service target nodes based on information, ).

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved by the present invention can be clearly understood by those skilled in the art from the following description will be.

According to an aspect of the present invention, there is provided a method of processing packet traffic between a user terminal and an information service node through a plurality of supplementary service nodes established in an ISP network, the method comprising the steps of: The method comprising the steps of: acquiring communication quality information for the user terminal; setting a traffic path in which at least one of the plurality of supplementary service nodes is distributed to an additional service target node based on the acquired communication quality information; And processing packet traffic between the user terminal and the information service node through the established traffic path.

According to another aspect of the present invention, there is provided an apparatus for processing packet traffic between a user terminal and an information service node through a plurality of additional service nodes established in an ISP network, the apparatus comprising: A communication quality acquiring unit that acquires communication quality information for the user terminal, and a traffic path setting unit that sets a traffic path in which at least one of the plurality of supplementary service nodes is distributed to the supplementary service target node based on the acquired communication quality information And a packet distributor for distributing the packet traffic between the user terminal and the information service node to the set traffic path. The present invention also provides a traffic processing device for a high-quality service.

According to another aspect of the present invention, there is provided a method for processing packet traffic between a user terminal and an information service node through a plurality of supplementary service nodes established in an ISP network, the method comprising: receiving a service request packet of up traffic from the user terminal; Monitoring a communication quality of an application or a session and setting a traffic route in which at least one of the plurality of additional service nodes is distributed to an additional service target node based on a communication quality monitoring result of the application or session And processing the packet traffic between the user terminal and the information service node through the set traffic path. The present invention also provides a traffic processing method for a high-quality service.

According to another aspect of the present invention, there is provided an apparatus for processing packet traffic between a user terminal and an information service node through a plurality of additional service nodes established in an ISP network, A traffic quality monitoring unit for monitoring a communication quality of an application or a session when the communication quality is monitored; and a traffic path setting unit that sets a traffic path in which at least one of the plurality of additional service nodes is distributed to the additional service target node, And a packet distributor for distributing the packet traffic between the user terminal and the information service node to the set traffic path. The present invention also provides a traffic processing device for a high-quality service.

In the present invention, when a service request packet is received, communication quality information for a user terminal is acquired, and at least one of a plurality of additional service nodes is allocated to an additional service target node to set a traffic path, By processing the packet traffic, it is possible to eliminate the traffic path through the unnecessary additional service equipment, thereby optimizing the traffic processing in the ISP network.

1 is a block diagram of a wireless Internet service system suitable for applying a traffic processing model according to an embodiment of the present invention.
2 is a block diagram of a traffic processing apparatus for a high-quality service according to an embodiment of the present invention.
3 is a flowchart illustrating a main process of processing traffic in order to provide a high-quality service to a user according to an embodiment of the present invention.
4 is a block diagram of a wireless Internet service system suitable for applying a traffic processing model according to another embodiment of the present invention.
5 is a block diagram illustrating a traffic processing apparatus for a high-quality service according to another embodiment of the present invention.
6 is a flowchart illustrating a main process of processing traffic in order to provide a high-quality service to a user according to another embodiment of the present invention.

First, the advantages and features of the present invention, and how to accomplish them, will be clarified with reference to the embodiments to be described in detail with reference to the accompanying drawings. While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to intentions or customs of a user, an operator, and the like. Therefore, the definition should be based on the technical idea described throughout this specification.

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

[Example 1]

FIG. 1 is a block diagram of a wireless Internet service system suitable for applying a traffic processing model according to an embodiment of the present invention. The wireless terminal includes a user terminal 110, a network 120, an ISP network 130, 140, an Internet 150, a target server 160, and the like. Here, the ISP network 130 may include a traffic distribution node 131, additional service nodes A to C (132 to 134), and a network address translation (NAT) node 135.

1, a user terminal 110 includes a wireless portable terminal (e.g., a mobile phone, a smart phone, a smart pad, a notebook, etc.) used by users who desire to provide high quality traffic optimization The user terminal 110 is connected to the ISP network 130 through a communication path via the network 120 according to a user operation so that the user terminal 110 can access the ISP network 130 A traffic processing service (traffic optimization service) for a high-quality service provided by the traffic distribution node 131 to the user terminal 110, and the like.

Here, the network 120 may be, for example, a second generation (2G) wireless network (e.g., a CDMA mobile communication system), a third generation (3G) wireless network (e.g., a WCDMA mobile communication system) (E.g., LTE mobile communication system), and a next generation wireless network of the future, or a wired communication network including a wireless communication network including a combination of at least two wireless networks and a wired Internet.

First, the traffic distribution node 131 in the ISP network 130 receives a service request (service request packet) of uplink traffic from the user terminal 110 via the network 120, (Traffic optimization) by acquiring communication quality information on the traffic distribution node 131. For this purpose, the traffic distribution node 131 may include the components as shown in FIG. Here, the service request packet coming from the user terminal 110 to the ISP network 130 may be one of an IP packet, a TCP packet, and an HTTP protocol packet, for example.

FIG. 2 is a block diagram illustrating a traffic processing apparatus for a high-quality service according to an exemplary embodiment of the present invention. The traffic processing apparatus includes a communication quality obtaining unit 202, a traffic path setting unit 204, a packet distributing unit 206, can do.

2, when a service request packet of an up traffic is received from the user terminal 110 through the network 120, the communication quality acquiring unit 202 acquires a communication request from the network communication management node 140 to the user terminal 110 And deliver quality information (e.g., service quality information of a session provided by another node, base station access information of the terminal, and the like) to the traffic path setting unit 204.

Here, the network communication management node 140 may mean a base station node (eNodeB) or the like that provides the mobile communication related service in the mobile communication network belonging to the service area, for example, It is possible to provide a function of storing and managing the IP list information and the user service policy information for the bad users based on the IP address of each user terminal.

That is, the communication quality information may include, for example, communication quality level information of a user terminal and base station connection information, and the base station connection information may indicate connection / non-connection information to the overloaded base station.

Next, the traffic route setting unit 204 sets at least one of a plurality of additional service nodes, for example, the additional service nodes A to C as additional service target nodes, based on the communication quality information transmitted from the communication quality obtaining unit 202 To the packet distribution unit 206, and the like. At this time, the traffic path setting unit 204 can transmit the corresponding traffic through the default path (i.e., the traffic path not passing through the additional service node) when the communication quality is good.

For example, if the communication quality is poor, the traffic path setting unit 204 may set the path where the TCP accelerator equipment is located to the traffic service path so as to provide TCP acceleration service for improving the service quality. In addition, the traffic path setting unit 204 may set the path where the packet compression equipment is located to a traffic service path so as to provide a traffic compression service for reducing the traffic volume when accessing to the overloaded base station with rapid surge of traffic.

Here, the traffic route setting unit 204 may distribute (determine) the supplementary service target node for the user terminal based on the IP (Src IP) address of the user terminal 110.

The packet distribution unit 206 transmits the packet traffic between the user terminal 110 and the target server 160 through the NAT node 135 and the upstream traffic coming from the user terminal 110 through the network 120 (Packet traffic delivery) to at least one additional service target node among the additional service nodes A to C (132, 133, 134) by distributing the downlink traffic to the set traffic path .

Meanwhile, in the present embodiment, the path optimization service for the uplink traffic and the downlink traffic is provided through one traffic distribution node. However, this is only an exemplary presentation for improving convenience and understanding of the description, However, the present invention is not limited to this. It is also possible to construct the uplink traffic distribution node and the downlink traffic distribution node to separate the uplink traffic and the downlink traffic, respectively. In this case, Will be located. Here, the downlink traffic distribution node can be defined as a router considering its functional point.

Referring to FIG. 1 again, the supplementary service nodes A to C (132, 133, and 134) are supplementary service apparatuses that provide traffic services specialized for each user based on subscriber information and site service policy information (Or a supplementary service server), and the like, and it is possible to transmit specific additional services such as a video optimization service, a web traffic acceleration service, a CDN (contents delivery network) service, etc. to the packet traffic delivered from the packet distributor 206 It can be provided selectively for each user.

As an example, the supplementary service node A 132 is a video optimizing apparatus for providing a moving image optimization service, and the supplementary service node B 133 is a web traffic acceleration equipment for providing a web traffic acceleration service. And CDN service equipment that provides CDN service.

In the meantime, although the traffic processing apparatus of the present embodiment has been described as including three additional service nodes, the present invention is not necessarily limited thereto, It is needless to say that a plurality of additional service nodes that provide various additional service functions capable of meeting various service demands at respective sites can be applied in combination.

The NAT node 135 is a NAT device that provides a function of converting an IP address or the like and transmits packets (uplink packets) transmitted from the traffic distribution node 131 to the Internet 150 To the target server 160 via the Internet 150 and to forward the packets (downlink packets) received from the Internet 150 to the traffic distribution node 131.

Here, the target server 160 may be a server operating on a site such as YouTube, Naver, Daum, Nate, Google, etc., and may be transmitted from the user terminal to the ISP network 130 and the Internet 150, (Or an information providing server) that provides a wireless Internet related service to each user based on a service request received through a communication path via the Internet.

Next, a series of processes for providing a traffic optimization service to a user terminal using the traffic processing apparatus of the present embodiment having the above-described configuration will be described in detail.

3 is a flowchart illustrating a main process of processing traffic in order to provide a high-quality service to a user according to an embodiment of the present invention.

3, when the service request packet generated from the user terminal 110 is received by the traffic distribution node 131 in the ISP network 130 through the network 120 according to the service operation by the user (step 302) The communication quality acquisition unit 202 in the traffic distribution node 131 acquires communication quality information on the user terminal from the network communication management node 140 (step 304).

Here, the communication quality information may include, for example, IP list information for users with relatively poor communication quality, user service policy information, and the like.

Next, the traffic route setting unit 204 sets the traffic route in such a manner that at least one or more of the additional service nodes, for example, the additional service nodes A to C, are distributed to the additional service target nodes based on the acquired communication quality information (Step 306). Here, the traffic path may be set to pass through only one additional service node, or may be set to pass through two or more additional service nodes.

For example, if the user has poor communication quality, the traffic path is set so that the user traffic is delivered to the path where the TCP accelerating device is located. When the traffic is connected to the overloaded base station with the surging traffic, the user traffic is transmitted to the path So that the traffic path can be set up.

The packet distribution unit 206 distributes the packet traffic between the user terminal 110 and the target server 160, that is, the uplink traffic and the downlink traffic, to the set traffic path, for example, the additional service nodes A to C (132, 133, 134) to at least one additional service target node (step 308).

As a result, in the corresponding supplementary service node set as the traffic path, the supplementary service for the traffic distributed and delivered from the packet distributor 206 is executed (step 310) To the terminal or the target server side.

[Example 2]

FIG. 4 is a block diagram of a wireless Internet service system suitable for applying the traffic processing model according to another embodiment of the present invention. The user terminal 410, the network 420, the ISP network 430, the Internet 450, A target server 460, and the like. Here, the ISP network 430 may include a traffic distribution node 431, additional service nodes A to C 432 to 434, and a network address translation (NAT) node 435.

4, each configuration and each function of the user terminal 410 and the network 420 may be implemented by corresponding components shown in FIG. 1, i.e., each configuration of the user terminal 110 and network 120 of FIG. And substantially the same as each function. Therefore, in order to avoid unnecessary redundant description for the sake of simplification of the specification, detailed description of these constituent members will be omitted here.

Next, the traffic distribution node 431 in the ISP network 430 transmits an uplink traffic service request (service request packet) from the user terminal 410 via the network 420 to the application The traffic distribution node 431 monitors the communication quality of each of the per-session or per-session and provides a service for traffic processing (traffic optimization) based on the monitoring result. For this, ≪ / RTI > Here, the service request packet coming from the user terminal 410 to the ISP network 430 may be, for example, an IP packet, a TCP packet, or an HTTP protocol packet.

FIG. 5 is a block diagram of a traffic processing apparatus for a high-quality service according to another embodiment of the present invention, and includes a communication quality monitoring unit 502, a traffic path setting unit 504, a packet distribution unit 506, can do.

5, the communication quality monitoring unit 502 monitors the communication quality for each application or each session when a service request packet of the up traffic is received from the user terminal 410 through the network 420, And forwarding the monitoring result to the traffic route setting unit 504.

Next, the traffic route setting unit 504 distributes at least one of the plurality of additional service nodes, for example, the additional service nodes A to C, to the additional service target node based on the communication quality information transmitted from the communication quality monitoring unit 502 To the packet distribution unit 506, and so on. At this time, the traffic path setting unit 504 can transmit the corresponding traffic through the default path (that is, the traffic path not passing through the additional service node) when the communication quality per application (per service) or per session is good .

For example, assuming that the users A and B are connected to the neighbor and the user A's neighbor connection speed is slower than usual (when the terminal is located at the cell edge or when a cell overload occurs, The traffic path setting unit 504 can set the path where the TCP accelerator equipment is located to the traffic service path so that the TCP accelerator service can be provided to the user A's traffic.

Here, the traffic route setting unit 504 may allocate (determine) the additional service target node to the user terminal based on the IP (Src IP) address of the user terminal 410. [

The packet distribution unit 506 transmits the packet traffic between the user terminal 410 and the target server 460 through the NAT node 435 and the upstream traffic coming from the user terminal 410 through the network 420 (Packet traffic delivery) to at least one additional service target node among the additional service nodes A to C (432, 433, and 434) by distributing the downlink traffic to the set traffic paths .

Meanwhile, in the present embodiment, the path optimization service for the uplink traffic and the downlink traffic is provided through one traffic distribution node. However, this is only an exemplary presentation for improving convenience and understanding of the description, However, the present invention is not limited to this. As in the first embodiment described above, the uplink traffic distribution node and the downlink traffic distribution node may be separately configured to process the uplink traffic and the downlink traffic. In this case, Will be located between the distribution node and the downstream traffic distribution node. Here, the downlink traffic distribution node can be defined as a router considering its functional point.

4, the supplementary service nodes A to C (432, 433, and 434) provide supplementary service equipment for providing a traffic service specialized for each user based on subscriber information and site service policy information (Or a supplementary service server), and the like, and it is possible to provide specific additional services such as a video optimization service, a web traffic acceleration service, a CDN (contents delivery network) service, etc. to the packet traffic delivered from the packet distributor 506 It can be provided selectively for each user.

As an example, the supplementary service node A 432 is a video optimizing apparatus for providing a video optimizing service, and the supplementary service node B 433 is a web traffic accelerator for providing a web traffic acceleration service. In the supplementary service node C 434, And CDN service equipment that provides CDN service.

In the meantime, the traffic processing apparatus of the present embodiment has been described as including three additional service nodes. However, the present invention is not limited to the above-described embodiments, It is needless to say that, as in Example 1, a plurality of additional service nodes each providing various additional service functions capable of meeting various service demands at users and at respective sites can be applied in combination.

The NAT node 435 is a NAT device that provides a function for converting an IP address and the like. The NAT node 435 transmits packets (uplink packets) transmitted from the traffic distribution node 431 to the Internet 450 To the target server 460 via the Internet 450, and to forward the packets (downlink packets) received from the Internet 450 to the traffic distribution node 431.

Here, the target server 460 may be, for example, a server operating on a site such as YouTube, Naver, Daum, Nate, Google, etc. as in the first embodiment described above. (Or an information providing server) that provides a wireless Internet related service to each user based on a service request received through a communication path via the network 430 and the Internet 450. [

Next, a series of processes for providing a traffic optimization service to a user terminal using the traffic processing apparatus of the present embodiment having the above-described configuration will be described in detail.

6 is a flowchart illustrating a main process of processing traffic in order to provide a high-quality service to a user according to an embodiment of the present invention.

6, when a service request packet generated from the user terminal 410 is received by the traffic distribution node 431 in the ISP network 430 through the network 420 according to the service operation by the user (step 602) The communication quality monitoring unit 502 in the traffic distribution node 431 monitors the communication quality for each application or each session and transmits the monitoring result to the traffic path setting unit 504 (step 604).

Next, the traffic route setting unit 504 sets the traffic route in such a manner that at least one or more of the additional service nodes, for example, the additional service nodes A to C, are distributed to the additional service target nodes based on the monitored communication quality information (Step 606). Here, the traffic path may be set to pass through only one additional service node, or may be set to pass through two or more additional service nodes.

For example, assuming that users A and B are connected to a neighbor and that the user A's neighbor connection speed is slower than usual (the terminal is located at a cell edge or a cell overload occurs for a specific reason When it is determined that the communication state of a user is not good), the traffic path may be set such that the user traffic is transmitted to the path where the TCP acceleration equipment is located.

The packet distribution unit 506 distributes the packet traffic between the user terminal 410 and the target server 460, that is, the uplink traffic and the downlink traffic, to the set traffic path, for example, the additional service nodes A to C 432, 433, 434 to at least one additional service target node (step 608).

As a result, in the corresponding supplementary service node set as the traffic path, the supplementary service for the traffic distributed and transmitted from the packet distributor 506 is executed (step 610) To the terminal or the target server side.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. It is easy to see that this is possible. In other words, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention.

Therefore, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

According to an embodiment of the present invention, when a service request packet is received, communication quality information for a user terminal is acquired, and at least one of a plurality of additional service nodes is distributed to an additional service target node to set a traffic path, It is possible to provide a traffic processing service model capable of processing packet traffic through a route.

The present invention including such a technical configuration can eliminate a traffic route via unnecessary additional service equipment, and thereby can optimize traffic processing in the ISP network.

202: communication quality obtaining unit 204, 504: traffic route setting unit
206, 506: Packet distribution unit 502: Communication quality monitoring unit

Claims (9)

A method for processing packet traffic between a user terminal and an information service node through a plurality of additional service nodes established in an ISP network,
Acquiring communication quality information for the user terminal when an uplink traffic service request packet is received from the user terminal;
Setting up a traffic route in which at least one of the plurality of supplementary service nodes is distributed to the supplementary service target node based on the acquired communication quality information;
Processing the packet traffic between the user terminal and the information service node through the set traffic path
A method for processing traffic for a high quality service. The method according to claim 1,
The communication quality information may include:
And acquiring from the base station node providing the mobile communication related service to the user terminal
Traffic handling method for high quality service. 3. The method of claim 2,
The communication quality information may include:
The communication quality level information of the user terminal and the base station connection information of the user terminal
Traffic handling method for high quality service. The method according to claim 1,
Wherein the setting step comprises:
And distributes the additional service target node based on the IP (Src IP) address of the terminal
Traffic handling method for high quality service. An apparatus for processing packet traffic between a user terminal and an information service node through a plurality of additional service nodes established in an ISP network,
A communication quality acquiring unit for acquiring communication quality information for the user terminal when an uplink traffic service request packet is received from the user terminal;
A traffic route setting unit for setting a traffic route in which at least one of the plurality of additional service nodes is distributed to the additional service target node based on the acquired communication quality information,
A packet distribution unit for distributing packet traffic between the user terminal and the information service node to the set traffic path,
And a traffic processing unit for the high-quality service. 6. The method of claim 5,
Wherein the communication quality obtaining unit
And acquires the communication quality information from the base station node providing the mobile communication related service to the user terminal
Traffic handling device for high quality service. 6. The method of claim 5,
Wherein the traffic route setting unit comprises:
And distributes the additional service target node to the user terminal based on the IP (Src IP) address of the terminal
Traffic handling device for high quality service. A method for processing packet traffic between a user terminal and an information service node through a plurality of additional service nodes established in an ISP network,
Monitoring communication quality for an application or a session when an uplink traffic service request packet is received from the user terminal;
Setting up a traffic path in which at least one of the plurality of supplementary service nodes is distributed to an additional service target node based on a communication quality monitoring result of the application or session;
Processing the packet traffic between the user terminal and the information service node through the set traffic path
A method for processing traffic for a high quality service. An apparatus for processing packet traffic between a user terminal and an information service node through a plurality of additional service nodes established in an ISP network,
A communication quality monitoring unit for monitoring a communication quality of an application or a session when an uplink traffic service request packet is received from the user terminal;
A traffic route setting unit for setting a traffic route in which at least one of the plurality of additional service nodes is distributed to the additional service target node based on the monitoring result of the communication quality,
A packet distribution unit for distributing packet traffic between the user terminal and the information service node to the set traffic path,
And a traffic processing unit for the high-quality service.

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