KR20130022333A - Method for simultaneously transmitting data in heterogeneous network - Google Patents

Abstract

PURPOSE: A heterogeneous network based data simultaneous transmission service method is provided to connect an optimal network apparatus without estimating the performance of adjacent network apparatuses. CONSTITUTION: A performance determination unit(610) determines apparatus performance for one or more network apparatuses which are accessed in a position of a transmission apparatus. An information generation unit(620) generates access network apparatus information based on apparatus performance for one or more network apparatuses. A policy providing unit(630) provides a network selecting policy included in the generated access network apparatus information to the transmission apparatus through a connected network. The policy providing unit induces a specific network apparatus to connect the network. [Reference numerals] (610) Performance determination unit; (620) Information generation unit; (630) Policy providing unit

Description

Heterogeneous network-based data transmission service method {METHOD FOR SIMULTANEOUSLY TRANSMITTING DATA IN HETEROGENEOUS NETWORK}

The present invention relates to a heterogeneous network-based simultaneous data transmission service method, and more particularly, in a heterogeneous network environment in which data to be transmitted is divided and simultaneously transmitted, a network device accessible by a policy management device from a transmitting device ( By analyzing the device performance using network information among APs, the network device (AP) that has superior performance and the network device (AP) that do not need to be accessed are selected and notified to the transmitting device. Heterogeneous network-based data transmission service method, a method of operating a policy management device and a policy monitoring device, which proposes a method of accessing an optimal network device (AP) without estimating the performance of the surrounding network device (AP). The present invention relates to a transmitter and a method of operating the transmitter.

Recently, operators often provide services based on multiple wireless technologies at the same time. In Korea, major operators are building and servicing networks by introducing WCDMA, CDMA, WiBro and WLAN (WiFi) technology, which is the nearest wireless network. In addition, LTE (Long Term Evolution) network is actively being introduced recently.

The present method in which a terminal device uses a data service in a heterogeneous network environment in which a plurality of networks are mixed is a method in which a controllability of a provider is excluded by an access network selection method by directly changing a terminal device user It is a passive method when considering the position of the business operator.

Meanwhile, as various wireless devices such as smartphones and tablet PCs are increasing, data rates are getting cheaper, and various large data services are increasing at the same time, as network load rate of operators is rapidly increasing, network investment is excessively expended and service stability. The situation is being threatened.

Accordingly, there is a need for a new service method for efficiently selecting an access network of a terminal device according to the state of a network in a heterogeneous network environment where a plurality of networks are mixed and efficiently transmitting data using the selected network.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to determine a device performance of at least one network device accessible by a policy management device at a location of the transmission device in response to a specific transmission device. And generating priority access network device information based on the determined device performance of the at least one network device, so that the policy management device accesses a network selection policy including the generated priority access network device information. When provided to the transmitting apparatus through the transmission apparatus, the transmitting apparatus preferentially accesses a specific network apparatus based on the priority access network apparatus information included in the network selection policy, and the transmitting apparatus transmits the transmission target according to the obtained network selection policy. Select the partial data divided from the data, By providing a heterogeneous network-based data transmission service method for transmitting previously selected partial data through two or more networks including the connected network and a network connected by the first connected specific network device, the policy management apparatus provides a transmission apparatus. It analyzes device performance using network information among network devices (AP) that can be accessed and selects the network device (AP) that has superior performance and network devices (AP) that do not need to attempt to connect to the transmitting device. Thus, the transmitter is connected to the optimal network apparatus AP without estimating the performance of the peripheral network apparatus itself.

The present invention has been made in view of the above circumstances, and another object of the present invention is to determine a device performance of at least one network device accessible from a location of the transmitting device in response to a specific transmitting device. Generating preferred access network device information based on the determined device performance of at least one network device, and providing a network selection policy including the generated preferred access network device information to the transmitting device through the connected network; Provides a policy management device and a method of operating the policy management device that induces preferential access to a specific network device, so that the sending device accesses the optimal network device without having to estimate the performance of the peripheral network device itself. To do that.

The present invention has been made in view of the above circumstances, and another object of the present invention is to provide a network selection policy including preferred access network device information generated based on device performance of at least one connectable network device. Acquiring, first accessing to a specific network device based on the priority access network device information included in the network selection policy, selecting segmented partial data from the transmission target data according to the obtained network selection policy, and selecting the selected partial data. It provides a transmission device and a method of operating the transmission device for transmitting the transmission via two or more networks including the connected network and the network connected by the first connected specific network device, the transmitter itself is a peripheral network device (AP ) Without estimating performance It is to be connected to a hostile network devices (AP).

The policy management apparatus according to the first aspect of the present invention for achieving the above object comprises a performance determination unit for determining the device performance for at least one network device that can be connected at the location of the transmission device corresponding to a specific transmission device; An information generation unit generating priority access network device information based on the determined device performance of the at least one network device; And a policy provider for providing a network selection policy including the generated preferred access network device information to the transmitting device through a connected network to induce a preferential access to a specific network device.

Preferably, the performance analyzer acquires at least one of connection history information and operation state information for the at least one network device corresponding to the transmission device, and at least any one of the obtained connection history information and operation state information. By analyzing one, device performance of the at least one network device may be determined.

Preferably, the information generation unit, based on the determined device performance of the at least one network device, a priority list indicating the network device to induce a priority connection and a connection limit list indicating a network device to limit the connection attempt The priority access network device information including at least one of the information may be generated.

In accordance with a second aspect of the present invention for achieving the above object, a transmitting device obtains an information for obtaining a network selection policy including preferred access network device information generated based on device performance of at least one connectable network device. part; A control unit selecting partial data divided from the transmission target data according to the obtained network selection policy; And a communication unit for first connecting to a specific network device according to the priority access network device information included in the network selection policy and transmitting the selected partial data.

Preferably, the at least one information acquisition unit is determined by analyzing at least one of connection history information and operation state information of the at least one network apparatus of the transmitting apparatus from a policy management apparatus through a connected network. The network selection policy including the priority access network device information generated based on the device performance of the network device may be received.

A heterogeneous network-based simultaneous data transmission service method according to a third aspect of the present invention for achieving the above object is an apparatus for at least one network apparatus that a policy management apparatus can access at a position of the transmitting apparatus corresponding to a specific transmitting apparatus. Determining performance; Generating, by the policy management apparatus, first access network device information based on the determined device performance of the at least one network device; Providing, by the policy management apparatus, a network selection policy including the generated preferred access network apparatus information to the transmitting apparatus through a connected network; The first transmission device accessing a specific network device based on the priority access network device information included in the network selection policy; Selecting, by the transmitter, partial data divided from transmission target data according to the obtained network selection policy; And transmitting, by the transmitting apparatus, the selected partial data through two or more networks including the connected network and a network connected by the first connected specific network apparatus.

A method of operating a policy management apparatus according to a fourth aspect of the present invention for achieving the above object, the performance determination to determine the device performance for at least one network device accessible from the location of the transmitting device corresponding to a specific transmitting device step; An information generating step of generating preferential access network device information based on the determined device performance of the at least one network device; And providing a network selection policy including the generated preferred access network device information to the transmitting device through a connected network to induce a preferential access to a specific network device.

Preferably, the performance analysis step, at least one of the connection history information and operation state information for the at least one network device corresponding to the transmission device, and at least one of the obtained connection history information and operation state information Any one may be analyzed to determine device performance of the at least one network device.

Preferably, the information generating step, based on the determined device performance of the at least one network device, the connection limit indicating the priority connection list indicating the network device to induce a priority connection and the network device for limiting the connection attempt The priority access network device information including at least one of a list may be generated.

A method of operating a transmitting device according to a fifth aspect of the present invention for achieving the above object, obtains a network selection policy including preferred access network device information generated based on device performance for at least one connectable network device Obtaining information; First accessing a specific network device based on the priority access network device information included in the network selection policy; A partial data selection step of selecting partial data divided from transmission target data according to the obtained network selection policy; And a partial data transmission step of transmitting the selected partial data through two or more networks including the connected network and a network connected by the first connected specific network device.

Preferably, the information acquiring step includes accessing a policy management device through the connected network and analyzing at least one of connection history information and operation state information of the at least one network device of the transmitting device. The network selection policy including the priority access network device information generated based on the device performance of the at least one network device may be received from the policy management device.

Therefore, according to the heterogeneous network-based simultaneous data transmission service method of the present invention, in the heterogeneous network environment, network devices (APs) to which a policy management device is accessible from a transmitting device in dividing and simultaneously transmitting data to be transmitted in a heterogeneous network environment. The device performance analysis using the network information is used to provide the sender with the preferred access network device information, which selects the network device (AP) that has excellent performance and the network device (AP) that does not need to attempt connection. The device may access the optimal network device AP based on the preferred access network device information from the policy management device without estimating the performance of the peripheral network device itself.

1 is a block diagram showing a heterogeneous network-based simultaneous data transmission service system according to a preferred embodiment of the present invention.
2 is a block diagram showing the configuration of a policy management apparatus according to a preferred embodiment of the present invention.
3 is a block diagram showing the configuration of a transmission apparatus according to a preferred embodiment of the present invention.
4 is a flowchart illustrating a flow of a heterogeneous network-based data transmission service method according to a preferred embodiment of the present invention.
5 is an operation flowchart showing a method of operating a policy management apparatus according to a preferred embodiment of the present invention.
6 is an operation flowchart showing a method of operating a transmitter according to an exemplary embodiment of the present invention.

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

1 is a diagram illustrating a heterogeneous network-based simultaneous data transmission service system according to a preferred embodiment of the present invention.

As shown in FIG. 1, a heterogeneous network-based data simultaneous transmission service system according to the present invention includes a management apparatus 400 for supporting a simultaneous transmission service in which data to be transmitted is divided into two or more partial data and transmitted through two or more networks. And at least one transmitter 100 connected to the management device 400 to use a simultaneous transmission service.

Here, two or more networks, that is, heterogeneous networks, may include WCDMA, CDMA, WiBro, WLAN (WiFi), Long Term Evolution (LTE), and the like.

In the present invention, for convenience of description, a first network (hereinafter, referred to as a "3G network"), which refers to a wireless packet service network (WCDMA) of two or more networks, and a second wireless network (WiFi) Embodiments will be described with reference to two networks (hereinafter referred to as "WiFi networks"). Accordingly, the first network device 200 refers to a gateway GPRS support node (GGSN) device for operating a 3G network, that is, a wireless packet service network, and the second network device 300 is a WiFi network, It refers to an access point (AP) for operating a local area wireless network.

Furthermore, the heterogeneous network-based data simultaneous transmission service system according to the present invention includes a policy management for providing an external device 500 and a network selection policy for receiving the combined / restored data according to the simultaneous transmission service from the management device 400. Has a configuration that includes an apparatus 600.

The policy management apparatus 600 may include, for example, a transmission apparatus 100 and a management apparatus 400 according to various network parameters and network state variations on heterogeneous networks including subscriber preferences, subscriber types, subscription plans, types of service target applications, and the like. The network selection policy is determined based on the network state information received from the network state information, and provided to the transmitter 100 and the management device 400.

Accordingly, the heterogeneous network-based data transmission service according to the present invention divides one piece of data between the transmission device 100 and the management device 400 for data transmission and reception between the transmission device 100 and the external device 500. The divided partial data is transmitted using a plurality of heterogeneous networks (eg, 3G and WiFi), and a simultaneous transmission service for combining the received partial data and restoring the original data is implemented.

In order to use the simultaneous transmission service, the transmitting apparatus 100 needs to access two or more networks (eg, 3G and WiFi) to be used in the simultaneous transmission service.

Here, in the case of a WiFi network, the transmitter 100 transmits and receives a packet to and from the peripheral network apparatuses (AP) in order to access the optimal AP, and then measures the performance of the peripheral network apparatuses (AP) based on the measured result. It is common to connect to a WiFi network by estimating and accessing an optimal AP according to the estimation result.

As such, when the transmitter 100 estimates the performance of the AP, the transmitter 100 is connected to the WiFi network, so that the transmitter 100 turns on the WiFi modem and directly connects to the WiFi network. It will take time and power to connect.

Accordingly, in the present invention, the policy management apparatus 600 determines the device performance of at least one network device accessible from the position of the transmitter 100 in response to the transmitter 100, and determines the at least one determined Generates preferred access network device information based on device performance of the network device, and provides a network selection policy including the generated preferred access network device information to the transmitting device 100 through the connected network, thereby providing a specific network device. It has a configuration for inducing a preferential connection to.

Prior to this, according to the present invention, it is preferable that the transmitter 100 first accesses an authenticated first network, that is, a 3G network, of two or more networks to be used in the simultaneous transmission service.

The policy management apparatus 600 determines the device performance for at least one network apparatus that can be connected at the position of the transmitter 100 in response to the transmitter 100 connected to the 3G network.

That is, the policy management apparatus 600 recognizes at least one network apparatus which can be connected at the position of the transmitter 100 in correspondence with the transmitter 100.

For example, the policy management apparatus 600 may obtain, from the location management server 800, transmission apparatus location information that is recognized based on the 3G network authenticated corresponding to the transmission apparatus 100. Here, the location management server 800 is a server that provides the location information of the transmission device by using information such as the location of the base station device, GGSN, and the like, such as latitude and longitude, according to the 3G network. Of course, the policy management apparatus 600 may obtain the location information corresponding to the transmitter 100 through various methods such as GPS based acquisition.

And, the policy management device 600, at least one network located in the area corresponding to the location information of the transmitting device 100 through the linkage with the WiFi management server 700 for managing various information about the WiFi APs At least one network device 300a, 300b, 300c, or 300d located at a location to which the device (WiFi AP), that is, the transmitting device 100 can connect, may be recognized.

In addition, the policy management apparatus 600 may determine the device performance of at least one network device 300a, 300b, 300c, 300d that can be connected through interworking with the WiFi management server 700.

That is, the policy management apparatus 600 may transmit at least one of connection history information and operation state information to at least one network device 300a, 300b, 300c, or 300d in response to the transmission device 100. The device performance of the at least one network device 300a, 300b, 300c, or 300d may be determined by analyzing at least one of the acquired connection history information and the operation state information.

As such, the policy management apparatus 600 determines the device performance of the at least one network AP (WiFi AP) in response to the specific transmission apparatus 100 by using the network information.

In addition, the policy management apparatus 600 first generates access network device information corresponding to the transmitter 100 based on the determined device performance of the at least one network device 300a, 300b, 300c, or 300d. .

For example, the policy management apparatus 600 represents the network apparatuses 300a and 300b for inducing first access based on the determined device performances of the at least one network apparatus 300a, 300b, 300c, or 300d. Priority access network device information including at least one of a priority access list and a connection limit list indicating network devices 300c and 300d for restricting connection attempts may be generated.

The policy management apparatus 600 may provide a network selection policy including the generated preferred access network apparatus information to the transmitting apparatus 100 through an authenticated network, that is, a 3G network.

Of course, the policy management apparatus 600 may provide the generated priority access network apparatus information to the transmitting apparatus 100 through an authenticated network, that is, a 3G network, separately from the network selection policy.

At this time, the policy management apparatus 600 is an ANDSF apparatus, and may provide the first access network apparatus information to the transmitting apparatus 100 using a predefined device-ANDSF apparatus protocol.

As described above, the transmitter 100 first accesses an authenticated first network, that is, a 3G network, of two or more networks to be used in the simultaneous transmission service, and then estimates the performance of the peripheral network device (AP) by itself. Do not perform an action.

In addition, the transmitter 100 obtains a network selection policy including preferred access network device information generated based on device performance of at least one connectable network device.

That is, the transmitter 100 receives the network selection policy from the policy management apparatus 600 through the previously connected authenticated network, that is, the 3G network.

Accordingly, the transmitting device 100 first connects to a specific network device according to the preferred access network device information included in the network selection policy.

That is, the transmitting apparatus 100 connects the priority indicating list indicating network apparatuses 300a and 300b for inducing priority connection included in the priority access network apparatus information and the network apparatus 300c and 300d for restricting connection attempts. You can check the restriction list.

Accordingly, the transmitting device 100 attempts to connect to any one of the network devices 300a and 300b according to the priority access list, that is, the WiFi AP1 300a and the WiFi AP2 300b, and the network device according to the access restriction list ( 300c and 300d are not attempted to connect.

Accordingly, when the transmitter 100 successfully connects to any one of the WiFi AP1 300a and the WiFi AP2 300b, the transmitter 100 transmits simultaneously through any one of the connected WiFi AP1 300a and the WiFi AP2 300b. A second network, that is, a WiFi network, of two or more networks to be used for the service is accessed.

As such, the transmitting device 100 does not perform a conventional operation for estimating an optimal network device (AP) by itself in response to the WiFi network, and based on the preferred access network device information provided from the policy management device 600. By first connecting to a specific network device (AP), it is possible to connect to the WiFi network through the optimum network device (AP).

The transmitter 100 may use the simultaneous transmission service when both of the two or more networks (eg, 3G and WiFi) to be used in the simultaneous transmission service are connected.

That is, the transmitter 100 divides the transmission target data to use the simultaneous transmission service, and selects the divided partial data from the transmission target data according to the network selection policy described above.

In other words, the transmitting device 100 may include a data transmission rate for each network (eg, 3G and WiFi) included in the network selection policy, that is, a first transmission rate and a second network device for data transmission to the first network device 200. Identifying the second transmission rate for data transmission to the 300, selecting first partial data to be transmitted to the first network device 200 among the partial data divided from the transmission target data based on the confirmed transmission rate; The second partial data to be transmitted to the second network device 300 is selected from the remaining partial data.

The transmitter 100 transmits the partial data selected for each network through two or more networks including an authenticated network and a network connected by the preferentially connected specific network apparatus.

That is, the transmitting device 100 transmits a plurality of pieces of first partial data selected corresponding to the authenticated network, that is, the 3G network, to the first network device 200 located in the 3G network, and the above-mentioned first-connected specific network device. The first network device 200 transmits the first partial data to the second network apparatus 300 located in the WiFi network by transmitting a plurality of second partial data selected corresponding to the network connected by the network, that is, the WiFI network. The second network device 300 transmits the second partial data to the management device 400.

Accordingly, the management device 400 receives the first partial data transmitted from the transmission device 100 from the first network device 200 and the second partial data from the second network device 300.

Accordingly, the management device 400 generates data based on the received virtual network connection information included in the first partial data and the second partial data, thereby restoring the transmission target data to be transmitted by the transmitting device 100. . That is, the management apparatus 400 recognizes the first partial data and the second partial data having the same virtual network access information indicating that the data is divided from one data based on the virtual network access information included in the received partial data. By combining and combining them according to the order information included in the corresponding partial data, the original transmission target data can be generated.

Thus, the management device 400 will deliver the restored original transmission target data to the external device 500.

Hereinafter, the configuration of the policy management apparatus according to the present invention will be described in more detail with reference to FIG. 2.

The policy management apparatus 600 according to the present invention includes a performance determination unit 610 for determining device performance of at least one network device that can be connected at a location of the transmission apparatus 100 in response to a specific transmission apparatus 100. A network connected to an information generation unit 620 for generating priority access network device information based on the determined device performance of the at least one network device, and a network selection policy including the generated priority access network device information. The policy providing unit 630 is provided to the transmitting device 100 through a network to induce priority access to a specific network device.

The performance determining unit 610 determines the device performance of at least one network device that can be connected at the position of the transmitting device 100 in response to the transmitting device 100.

More specifically, the performance determining unit 610 acquires at least one of connection history information and operation state information for the at least one network device in response to the transmitting device 100, and obtains the obtained connection history information and operation. At least one of the state information may be analyzed to determine device performance of the at least one network device.

For example, the performance determining unit 610 recognizes at least one network device that can be connected at the position of the transmitting device 100 in correspondence with the transmitting device 100.

That is, the performance determining unit 610 may obtain the location information of the transmitter from the location management server 800 based on the 3G network authenticated in response to the transmitter 100. Of course, the performance determining unit 610 may be obtained through various methods such as obtaining location information corresponding to the transmitter 100 based on GPS.

In addition, the performance determining unit 610 is connected to a WiFi management server 700 that manages various information on the WiFi AP, at least one network located in an area corresponding to the location information of the transmitter 100. At least one network device 300a, 300b, 300c, or 300d located at a location to which the device (WiFi AP), that is, the transmitting device 100 can connect, may be recognized.

The performance determining unit 610 may determine the device performance of at least one network device 300a, 300b, 300c, or 300d that can be connected through the interworking with the WiFi management server 700.

That is, the performance determining unit 610, at least one of the connection history information and the operation state information for the at least one network device (300a, 300b, 300c, 300d) corresponding to the transmission device 100 to the WiFi management server ( The device performance of the at least one network device 300a, 300b, 300c, or 300d may be determined by analyzing at least one of the acquired connection history information and the operation state information.

Here, the connection history information is a history (eg, number of connection, number of connection attempts, authentication failure rate, etc.) when the transmitting device 100 has connected in the past to each of at least one network device (300a, 300b, 300c, 300d). The operation state information may include whether the at least one network device 300a, 300b, 300c, or 300d is currently malfunctioning, the number of connected authentication terminals, the amount of processing traffic, and the like.

As described above, the performance determining unit 610 determines device performance of at least one network AP (WiFi AP) in response to the specific transmission device 100 by using network information.

The information generating unit 620 generates the access network device information in response to the transmitting device 100 based on the device performance of the at least one network device determined by the performance determining unit 610.

More specifically, the information generating unit 620, based on the device performance of the at least one network device determined by the performance determination unit 610, the priority connection list and the access attempt indicating the network device that induces priority connection. Priority access network device information including at least one of a connection restriction list indicating a network device to be restricted may be generated.

For example, the information generating unit 620 is based on the device performance of each of the network devices 300a, 300b, 300c, and 300d determined by the performance determining unit 610, and the top n in order of the excellent device performance. Select network devices (e.g. 300a, 300b) and create a priority connection list that shows network devices 300a, 300b that induce priority access. Network devices (e.g. 300c, 300d) whose device performance is lower than the performance standard It is possible to generate a connection restriction list indicating the network device (300c, 300d) to select the and limit the connection attempt.

The information generation unit 620 may generate priority connection network device information including the generated priority connection list and the connection restriction list.

The policy providing unit 630 provides a network selection policy including the priority access network device information generated by the information generating unit 620 to the transmitting device 100 through the connected network to give priority access to a specific network device. Induce.

More specifically, the policy provider 630 may provide a network selection policy including the priority access network device information generated by the information generator 620 to the transmitter 100 through an authenticated network, that is, a 3G network. have.

Of course, the policy provider 630 may provide the generated preferred access network device information to the transmitting device 100 through an authenticated network, that is, a 3G network, separately from the network selection policy.

In this case, the policy provider 630 may provide the first access network device information to the transmitting device 100 using the device-ANDSF device protocol defined in the ANDSF device.

Hereinafter, a configuration of a transmitter according to the present invention will be described with reference to FIG. 3.

The transmitter 100 according to the present invention includes: an information acquisition unit 110 for acquiring a network selection policy including priority access network device information generated based on device performance of at least one connectable network device; The control unit 120 for selecting the divided partial data from the transmission target data according to the obtained network selection policy, and first accessing to a specific network device according to the priority access network device information included in the network selection policy, and selecting the selected portion. It includes a communication unit 130 for transmitting data.

Here, the communication unit 130 refers to a communication module for interworking with the first network device 200 using the 3G network and interworking with the second network device 300 using the WiFi network.

Accordingly, when the transmitter 100 is to use the simultaneous transmission service, the communication unit 130 may first connect to an authenticated first network, that is, a 3G network, among two or more networks to be used for the simultaneous transmission service.

In addition, the communication unit 130 does not perform a conventional operation of estimating the performance of the neighboring second network device AP by itself to access a specific second network, that is, a WiFi network, of two or more networks.

The information acquisition unit 110 obtains a network selection policy including the preferred access network device information generated based on the device performance of at least one connectable network device.

More specifically, the information acquisition unit 110, from the policy management device 600 through the authenticated network, that is, 3G network, connection history information and operation state information for at least one network device that can be connected to the transmission device 100; The network selection policy including the priority access network device information generated based on the device performance of the at least one network device determined by analyzing at least one of the at least one network may be received.

That is, the information acquisition unit 110 may receive the preferred access network device information including the preferred access list and the access restriction list as described above from the policy management apparatus 600 through the authenticated network, that is, the 3G network.

Alternatively, the information acquisition unit 110 may receive a network selection policy including access network device information from the policy management device 600 through an authenticated network, that is, a 3G network.

In this way, when the preferred access network device information is obtained, the communication unit 130 first connects to the specific network device according to the preferred access network device information.

More specifically, the communication unit 130 indicates the priority connection list indicating the network devices 300a and 300b for inducing priority connection included in the priority connection network device information and the network devices 300c and 300d for limiting the connection attempt. You can check the list of connection restrictions.

Accordingly, the communication unit 130 attempts to connect to any one of the network devices 300a and 300b according to the priority access list, that is, the WiFi AP1 300a and the WiFi AP2 300b and the network device 300c according to the access restriction list. 300d) does not attempt to connect.

When the communication unit 130 successfully connects to any one of the WiFi AP1 300a and the WiFi AP2 300b, the communication unit 130 simultaneously transmits the service through any one of the connected WiFi AP1 300a and the WiFi AP2 300b. Access to a second network, that is, a WiFi network, from among two or more networks to be used.

As such, the transmitting device 100 does not perform a conventional operation for estimating an optimal network device (AP) by itself in response to the WiFi network, and based on the preferred access network device information provided from the policy management device 600. By first connecting to a specific network device (AP), it is possible to connect to the WiFi network through the optimum network device (AP).

The transmitter 100 may use the simultaneous transmission service when both of the two or more networks (eg, 3G and WiFi) to be used in the simultaneous transmission service are connected.

That is, the control unit 120 selects the partial data divided from the transmission target data according to the obtained network selection policy and provides it to the communication unit 130.

For example, the control unit 120 divides the transmission target data to use the simultaneous transmission service, and selects the divided partial data from the transmission target data according to the network selection policy described above.

That is, the controller 120 may include a data transmission rate for each network (eg, 3G and WiFi) included in the network selection policy, that is, a first transmission rate and a second network device 300 for data transmission to the first network device 200. Check the second transmission rate for data transmission to the second network, select the first partial data to be transmitted to the first network device 200 among the partial data divided from the transmission target data based on the confirmed transmission rate, and then Among the partial data, the second partial data to be transmitted to the second network device 300 is selected and provided to the communication unit 130.

Accordingly, the communication unit 130 transmits the partial data selected for each network through a network, ie, a WiFi network, connected by the aforementioned authenticated network, that is, the 3G network, and the specific network device which is accessed first.

As described above, the heterogeneous network-based data simultaneous transmission service system including the transmission device and the policy management device according to the present invention divides and simultaneously transmits data to be transmitted in a heterogeneous network environment. First, the network device (AP) that has high performance and the network device (AP) that do not need to attempt to connect have been selected through the performance analysis using network information among the network devices (AP) accessible from the transmitter. By providing the access network information to the transmitting apparatus, the transmitting apparatus can access the optimal network apparatus AP based on the preferred access network apparatus information from the policy management apparatus without estimating the performance of the peripheral network apparatus itself. do.

Hereinafter, a heterogeneous network-based data transmission method according to a preferred embodiment of the present invention will be described with reference to FIGS. 4 to 6. Here, for convenience of description, the components shown in FIGS. 1 to 3 will be described with reference to corresponding reference numerals.

First, a heterogeneous network-based simultaneous data transmission method according to a preferred embodiment of the present invention will be described with reference to FIG. 4.

In order to use the simultaneous transmission service, the transmitter 100 must access two or more networks (eg, 3G and WiFi) to be used in the simultaneous transmission service.

Accordingly, it is preferable that the transmitter 100 first accesses an authenticated first network, that is, a 3G network, of two or more networks to be used in the simultaneous transmission service (S10).

The policy management apparatus 600 determines the device performance for at least one network apparatus that can be connected at the position of the transmitter 100 in response to the transmitter 100 connected to the 3G network.

That is, the policy management apparatus 600 recognizes at least one network apparatus that can be connected at the position of the transmitter 100 in correspondence with the transmitter 100 (S20).

For example, the policy management apparatus 600 may obtain, from the location management server 800, transmission apparatus location information that is recognized based on the 3G network authenticated corresponding to the transmission apparatus 100. Here, the location management server 800 is a server that provides the location information of the transmission device by using information such as the location of the base station device, GGSN, and the like, such as latitude and longitude, according to the 3G network. Of course, the policy management apparatus 600 may obtain the location information corresponding to the transmitter 100 through various methods such as GPS based acquisition.

And, the policy management device 600, at least one network located in the area corresponding to the location information of the transmitting device 100 through the linkage with the WiFi management server 700 for managing various information about the WiFi APs At least one network device 300a, 300b, 300c, or 300d located at a location to which the device (WiFi AP), that is, the transmitting device 100 can connect, may be recognized.

In addition, the policy management apparatus 600 may determine the device performance of at least one network device 300a, 300b, 300c, 300d accessible through interworking with the WiFi management server 700 (S30).

That is, the policy management apparatus 600 may transmit at least one of connection history information and operation state information to at least one network device 300a, 300b, 300c, or 300d in response to the transmission device 100. The device performance of the at least one network device 300a, 300b, 300c, or 300d may be determined by analyzing at least one of the acquired connection history information and the operation state information.

As such, the policy management apparatus 600 determines the device performance of the at least one network AP (WiFi AP) in response to the specific transmission apparatus 100 by using the network information.

In addition, the policy management apparatus 600 first generates access network device information corresponding to the transmitter 100 based on the determined device performance of the at least one network device 300a, 300b, 300c, or 300d. (S40).

For example, the policy management apparatus 600 represents the network apparatuses 300a and 300b for inducing first access based on the determined device performances of the at least one network apparatus 300a, 300b, 300c, or 300d. Priority access network device information including at least one of a priority access list and a connection limit list indicating network devices 300c and 300d for restricting connection attempts may be generated.

The policy management apparatus 600 may provide a network selection policy including the generated preferred access network apparatus information to the transmitting apparatus 100 through an authenticated network, that is, a 3G network (S60).

Of course, the policy management apparatus 600 may provide the generated priority access network apparatus information to the transmitting apparatus 100 through an authenticated network, that is, a 3G network, separately from the network selection policy.

At this time, the policy management apparatus 600 is an ANDSF apparatus, and may provide the first access network apparatus information to the transmitting apparatus 100 using a predefined device-ANDSF apparatus protocol.

As described above, the transmitter 100 first accesses an authenticated first network, that is, a 3G network, of two or more networks to be used in the simultaneous transmission service (S10), and then estimates the performance of the neighboring network device (AP) by itself. Do not perform the conventional operation.

In addition, the transmitter 100 obtains a network selection policy including preferred access network device information generated based on device performance of at least one connectable network device.

That is, the transmitter 100 receives the network selection policy from the policy management apparatus 600 through the previously connected authenticated network, that is, the 3G network (S50).

Accordingly, the transmitter 100 first connects to a specific network device according to the priority access network device information included in the network selection policy (S60).

That is, the transmitting apparatus 100 connects the priority indicating list indicating network apparatuses 300a and 300b for inducing priority connection included in the priority access network apparatus information and the network apparatus 300c and 300d for restricting connection attempts. You can check the restriction list.

Accordingly, the transmitting device 100 attempts to connect to any one of the network devices 300a and 300b according to the priority access list, that is, the WiFi AP1 300a and the WiFi AP2 300b, and the network device according to the access restriction list ( 300c and 300d are not attempted to connect.

Accordingly, when the transmitter 100 successfully connects to any one of the WiFi AP1 300a and the WiFi AP2 300b, the transmitter 100 transmits simultaneously through any one of the connected WiFi AP1 300a and the WiFi AP2 300b. A second network, that is, a WiFi network, of two or more networks to be used for the service is accessed.

As such, the transmitting device 100 does not perform a conventional operation for estimating an optimal network device (AP) by itself in response to the WiFi network, and based on the preferred access network device information provided from the policy management device 600. By first connecting to a specific network device (AP), it is possible to connect to the WiFi network through the optimum network device (AP).

The transmitter 100 may use the simultaneous transmission service when both of the two or more networks (eg, 3G and WiFi) to be used in the simultaneous transmission service are connected.

That is, the transmitter 100 divides the transmission target data to use the simultaneous transmission service, and selects the divided partial data from the transmission target data according to the network selection policy described above (S70).

The transmitter 100 transmits the partial data selected for each network through two or more networks including an authenticated network and a network connected by the preferentially connected specific network apparatus.

That is, the transmitter 100 transmits a plurality of first partial data selected corresponding to the authenticated network, i.e., the 3G network, to the first network apparatus 200 located in the 3G network (S80), and the priority connection described above is performed. By transmitting a plurality of pieces of second partial data selected corresponding to a network connected by a specific network device, that is, a WiFI network, to the second network device 300 located in the WiFi network (S85), the first network device 200 can generate a first network data. The first partial data is transmitted to the management device 400, and the second network device 300 transmits the second partial data to the management device 400.

Thus, the management device 400, when receiving the first partial data transmitted from the transmitting device 100 from the first network device 200 and the second partial data from the second network device 300, they are corresponding to them. By combining and combining according to the order information included in the partial data, the original transmission target data can be generated.

Thus, the management device 400 will deliver the restored original transmission target data to the external device 500.

Hereinafter, an operation method of the policy management apparatus according to the present invention will be described in more detail with reference to FIG. 5.

In the method of operating the policy management apparatus according to the present invention, the apparatus performance of at least one network apparatus connectable from the position of the transmitter 100 in response to the transmitter 100 is determined (S100 to S120).

More specifically, in the method of operating the policy management apparatus according to the present invention, at least one of the connection history information and the operation state information for the at least one network device corresponding to the transmitting device 100, and obtained At least one of the history information and operation state information may be analyzed to determine device performance of the at least one network device.

For example, the method of operating the policy management apparatus according to the present invention recognizes at least one network apparatus that can be connected at the position of the transmitter 100 in correspondence with the transmitter 100 (S100).

That is, in the method of operating the policy management apparatus according to the present invention, the location information of the transmission apparatus recognized based on the 3G network authenticated corresponding to the transmission apparatus 100 may be obtained from the location management server 800. Of course, the operation method of the policy management apparatus according to the present invention may be obtained through various methods, such as obtaining location information corresponding to the transmitter 100 based on GPS.

In addition, the operation method of the policy management apparatus according to the present invention, which is located in an area corresponding to the location information of the transmission apparatus 100 through the linkage with the WiFi management server 700 for managing various information about the WiFi APs. At least one network device (WiFi AP), that is, at least one network device 300a, 300b, 300c, or 300d located at a location to which the transmission device 100 can access may be recognized.

In addition, in the method of operating the policy management apparatus according to the present invention, through the interworking with the WiFi management server 700, it is possible to determine the device performance for at least one network device (300a, 300b, 300c, 300d) that can be connected.

That is, in the method of operating the policy management apparatus according to the present invention, at least one of the connection history information and the operation state information of the at least one network device (300a, 300b, 300c, 300d) corresponding to the transmission device 100 Obtaining from the WiFi management server 700 (S110), and analyzes at least one of the obtained connection history information and operation state information to determine the device performance for at least one network device (300a, 300b, 300c, 300d) It may be (S120).

Here, the connection history information is a history (eg, number of connection, number of connection attempts, authentication failure rate, etc.) when the transmitting device 100 has connected in the past to each of at least one network device (300a, 300b, 300c, 300d). The operation state information may include whether the at least one network device 300a, 300b, 300c, or 300d is currently malfunctioning, the number of connected authentication terminals, the amount of processing traffic, and the like.

As described above, in the method of operating the policy management apparatus according to the present invention, device performance of at least one network AP (WiFi AP) is determined in response to the specific transmission apparatus 100 using network information.

In the method of operating the policy management apparatus according to the present invention, based on the determined device performance of at least one network device, the access network device information is first generated in response to the transmission device 100 (S130).

More specifically, the operation method of the policy management apparatus according to the present invention, based on the determined device performance of the at least one network device, the network to limit the access attempt and the priority list indicating the network device that induces priority access Priority access network device information including at least one of a connection restriction list indicating a device may be generated.

For example, the operation method of the policy management apparatus according to the present invention is based on the device performance of each of the determined network devices (300a, 300b, 300c, 300d), the top n network devices in the order of the excellent device performance (E.g., 300a, 300b) and generate a priority connection list indicating network devices (300a, 300b) that induce priority connection, and select a network device (e.g., 300c, 300d) whose device performance is lower than the performance standard. A restricted access list indicating network devices 300c and 300d for restricting connection attempts can be generated.

Accordingly, in the method of operating the policy management apparatus according to the present invention, the preferred access network device information including the generated preferred access list and the access restriction list can be generated.

In the method of operating the policy management apparatus according to the present invention, the network selection policy including the generated preferred access network device information is provided to the transmitting device 100 through the connected network (S140), and the preferred access to a specific network device is performed. Induce.

More specifically, the method of operating the policy management device according to the present invention may provide the network selection policy including the generated preferred access network device information to the transmitting device 100 through an authenticated network, that is, a 3G network.

Of course, the operation method of the policy management device according to the present invention may provide the generated preferred access network device information to the transmitting device 100 through a network that is authenticated separately from the network selection policy, that is, the 3G network.

In this case, the method of operating the policy management apparatus according to the present invention may provide the first access network device information to the transmitting apparatus 100 using the device-ANDSF apparatus protocol defined in the ANDSF apparatus.

Hereinafter, a method of operating the transmitter according to the present invention will be described in more detail with reference to FIG. 6.

In the operation method of the transmitter according to the present invention, it is preferable to first connect to an authenticated first network, that is, a 3G network, of two or more networks to be used in a simultaneous transmission service (S200).

In addition, the operation method of the transmitter according to the present invention does not perform the conventional operation of estimating the performance of the neighboring second network device (AP) by itself in order to access a specific second network, that is, a WiFi network, of two or more networks.

In operation S210 of the present invention, a network selection policy including priority access network device information generated based on device performance of at least one connectable network device is obtained.

More specifically, the operation method of the transmission device according to the present invention, from the policy management device 600 through an authenticated network, that is, 3G network, connection history information for at least one network device that can be connected to the transmission device 100 and The network selection policy including the priority access network device information generated based on device performance of the at least one network device determined by analyzing at least one of operation state information may be received.

That is, in the method of operating the transmitter according to the present invention, the preferred access network device information including the preferred access list and the access restriction list as described above may be received from the policy management apparatus 600 through the authenticated network, that is, the 3G network. Can be.

Alternatively, the method of operating the transmitter according to the present invention may receive a network selection policy including access network device information from the policy management apparatus 600 through an authenticated network, that is, a 3G network.

When the preferred access network device information is obtained as described above, the operation method of the transmitter according to the present invention preferentially connects to a specific network device according to the preferred access network device information (S220).

More specifically, the operating method of the transmission apparatus according to the present invention, the network connection (300c) for limiting the access attempt and the priority list indicating the network devices (300a, 300b) that induces the priority connection included in the priority network information; You can see a list of connection restrictions indicating 300d).

Accordingly, in the method of operating the transmitter according to the present invention, the network device 300a or 300b according to the priority access list, that is, first attempt to connect to any one of the WiFi AP1 (300a) and WiFi AP2 (300b) to the access restriction list The network devices 300c and 300d do not attempt to connect.

Accordingly, in the method of operating the transmitter according to the present invention, when one of the WiFi AP1 300a and the WiFi AP2 300b is successfully connected, any one of the connected WiFi AP1 300a and the WiFi AP2 300b may be used. A second network, that is, a WiFi network, is connected to a second network among two or more networks to be used in the simultaneous transmission service.

As described above, the operation method of the transmission apparatus according to the present invention does not perform a conventional operation for estimating an optimum network apparatus (AP) by itself in response to the WiFi network, and provides a preferred access network provided from the policy management apparatus 600. By first connecting to a specific network device (AP) based on the device information, it is possible to access the WiFi network through the optimal network device (AP).

In addition, in the operating method of the transmission apparatus according to the present invention, when both of two or more networks (for example, 3G and WiFi) to be used in the simultaneous transmission service are connected, the simultaneous transmission service may be used (S230 to S240).

That is, in the method of operating the transmitter according to the present invention, the transmission target data is divided to use the simultaneous transmission service according to the obtained network selection policy, and the divided partial data is selected from the transmission target data according to the network selection policy described above. .

That is, the operation method of the transmitter according to the present invention includes a data transmission rate for each network (eg, 3G and WiFi) included in the network selection policy, that is, a first transmission rate and a first transmission rate for data transmission to the first network device 200. The second transmission rate for data transmission to the network device 300 is checked, and the first partial data to be transmitted to the first network device 200 is selected among the partial data divided from the transmission target data based on the confirmed transmission rate. In addition, the second partial data to be transmitted to the second network device 300 is selected from the remaining partial data.

In addition, the operation method of the transmitter according to the present invention transmits the selected partial data for each network through the network connected by the above-described authorized network, that is, the 3G network and the above-mentioned specific network device, that is, the WiFi network (S240). ).

As described above, the heterogeneous network-based simultaneous data transmission service method according to the present invention includes a network device that a policy management device can access from a transmitting device in dividing and simultaneously transmitting data to be transmitted in a heterogeneous network environment. Provides information on priority access network device that selects network device (AP) that has high performance and AP that does not need to attempt access through device performance analysis using network information among APs. This allows the transmitting apparatus to access the optimal network apparatus AP based on the preferred access network apparatus information from the policy management apparatus without estimating the performance of the peripheral network apparatus AP itself.

Meanwhile, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. A software module may reside in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and the storage medium may be included within an ASIC. The ASIC may be included in the user terminal device. In the alternative, the processor and the storage medium may be included as separate components within the user terminal device.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, 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 skilled 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.

According to the heterogeneous network-based data simultaneous transmission service method according to the present invention, in a simultaneous transmission service in which data to be transmitted is divided and transmitted simultaneously, a policy management device utilizes network information among network devices (APs) accessible from a transmission device. By analyzing the device performance, the transmitter transmits its own peripheral information by providing the transmitter with the priority access network device information which selects the network device (AP) that has excellent performance and the network device (AP) that does not need to attempt to connect. It is possible to access the optimal network device (AP) based on the preferred access network device information from the policy management device without estimating the performance of the network device (AP). There is not only sufficient potential for marketing or sales of the applied device, It is an invention with industrial applicability, since it can be clarified by the results.

600: policy monitoring device
610: performance determination unit 620: information generation unit
630: Policy provision department

Claims (9)

A performance determining unit for determining a device performance of at least one network device connectable from a location of the transmitting device corresponding to a specific transmitting device;
An information generation unit generating priority access network device information based on the determined device performance of the at least one network device; And
And a policy providing unit for providing a network selection policy including the generated preferred access network device information to the transmitting device through a previously connected network to induce priority access to a specific network device. . The method of claim 1,
The performance analysis unit,
Acquiring at least one of connection history information and operation state information for the at least one network device corresponding to the transmitting device, and analyzing at least one of the acquired connection history information and operation state information to the at least one network Policy management device, characterized in that for determining the device performance for the device. 3. The method according to claim 1 or 2,
The information generation unit,
The priority including at least one of a priority connection list indicating a network device for inducing a priority connection and a connection restriction list indicating a network device for restricting an access attempt based on the determined device performance of the at least one network device; Policy management device, characterized in that for generating access network device information. An information acquisition unit for obtaining a network selection policy including preferred access network device information generated based on device performance of at least one connectable network device;
A control unit selecting partial data divided from the transmission target data according to the obtained network selection policy; And
And a communication unit for first connecting to a specific network device according to the priority access network device information included in the network selection policy and transmitting the selected partial data. A performance determination step of determining device performance of at least one network device accessible from a location of the transmission device in response to a specific transmission device;
An information generating step of generating preferential access network device information based on the determined device performance of the at least one network device; And
And a policy providing step of providing a network selection policy including the generated preferred access network device information to the transmitting device through a previously connected network to induce priority access to a specific network device. How the device works. The method of claim 5, wherein
The performance analysis step,
Acquiring at least one of connection history information and operation state information for the at least one network device corresponding to the transmitting device, and analyzing at least one of the acquired connection history information and operation state information to the at least one network Method of operation of the policy management device, characterized in that for determining the device performance for the device. The method according to claim 5 or 6,
The information generating step,
The priority including at least one of a priority connection list indicating a network device for inducing a priority connection and a connection restriction list indicating a network device for restricting an access attempt based on the determined device performance of the at least one network device; Method for operating a policy management device, characterized in that for generating access network device information. An information obtaining step of obtaining a network selection policy including preferred access network device information generated based on device performance of at least one connectable network device;
First accessing a specific network device based on the priority access network device information included in the network selection policy;
A partial data selection step of selecting partial data divided from transmission target data according to the obtained network selection policy; And
And transmitting the selected partial data through two or more networks including a previously connected network and a network connected by the first connected specific network device. The method of claim 8,
The information acquisition step,
For at least one network device that is connected to a policy management device through the previously connected network, and analyzed by analyzing at least one of the connection history information and the operation state information of the at least one network device of the transmitting device; And receiving the network selection policy including the priority access network device information generated based on device performance from the policy management device.

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