KR101794732B1 - Apparatus and method for simultaneously transmitting data in heterogeneous network - Google Patents

Abstract

The present invention discloses a heterogeneous network-based data concurrent transmission service method. A change indicator value calculation step of calculating a change indicator value with respect to the change of the network information with time based on the network information according to the collected time of the transmission apparatus; An information determination step of determining whether the transmission apparatus exceeds a threshold value of the calculated change indicator value; An information request step of requesting, by the transmitting apparatus, the network selection policy corresponding to the current position when the calculated change indicator value exceeds the threshold value, to the policy management apparatus; An information providing step in which the policy management apparatus generates a network selection policy corresponding to a current location of the transmission apparatus and provides the network selection policy to the transmission apparatus; And a data transmission step in which the transmitting apparatus selects and transmits two or more partial data segments divided in the data according to the network selection policy, thereby effectively controlling the connection to the optimal network apparatus at the current position of the terminal apparatus It is possible to realize an efficient and reliable heterogeneous network-based data concurrent transmission service, and further, data transmission speed can be increased through data division transmission.

Description

TECHNICAL FIELD [0001] The present invention relates to a heterogeneous network-based data concurrent transmission service method and a device applied thereto. [0002]

The present invention relates to a method of simultaneously transmitting data, and more particularly, to a method and apparatus for simultaneously transmitting data by dividing and transmitting transmission target data according to a network selection policy in a heterogeneous network environment, And a network selection policy that includes connectable network device information corresponding to the current position of the terminal device when the calculated change indicator value exceeds the threshold value, The present invention relates to a heterogeneous network-based data concurrent transfer service method, a method of operating a transmitting apparatus and a transmitting apparatus, and a method of operating a policy management apparatus and a policy management apparatus.

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 and data rates are becoming cheaper, and at the same time, various large-capacity data services are increasing, the network load ratio of operators is rapidly rising, It is a threat from the side.

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 it is an object of the present invention to provide an apparatus and method for calculating a change indicator value relating to a change in network information over time based on network information according to a collected time of a transmitting apparatus Determining whether the calculated change indicator value exceeds a threshold value, and if the calculated change indicator value exceeds the threshold value, requesting the network management apparatus corresponding to the current position to the policy management apparatus, The apparatus generates a network selection policy corresponding to a current location of the transmission apparatus and provides the network selection policy to the transmission apparatus, and the transmission apparatus selects a different kind of partial data from the data according to the network selection policy, A simultaneous data transmission service method may be provided so that a connectable four Generating a work unit information, and provides the network selection policy that includes the information generated by it to derive a connection to the terminal device.

Another object to be achieved by the present invention is to provide a method and apparatus for calculating change indicator values related to changes over time of network information based on collected network information, Acquiring a network selection policy corresponding to a current location when the calculated change indicator value exceeds a threshold value, selecting at least two partial data items divided from the data according to the obtained network selection policy, And provides a network selection policy including the generated information to guide the connection of the terminal apparatus. [0031] The present invention provides a transmission apparatus and an operation method thereof.

It is a further object of the present invention to provide a method and apparatus for controlling a change in a time-dependent change of network information calculated on the basis of network information according to collected time of a transmitting apparatus, Receiving a policy request from the transmission apparatus when the index value exceeds a threshold value, generating a network selection policy corresponding to a current location of the transmission apparatus, providing the generated network selection policy to the transmission apparatus, The present invention provides a policy management apparatus and a method of operating the same, which are capable of generating connectable network device information corresponding to a current location of a terminal device, providing a network selection policy including the generated information, It is to induce.

According to a first aspect of the present invention, there is provided a transmission apparatus for calculating a change indicator value relating to a change over time of the network information based on network information according to collected time, An information acquiring unit acquiring a network selection policy corresponding to a current location when the value exceeds a threshold; A control unit for selecting at least two partial data items divided from the data according to the obtained network selection policy; And a communication unit for transmitting the selected partial data.

Preferably, the information obtaining unit calculates the change indicator value based on at least one of whether the network device is changed and the number of changed devices among the list of the detected network devices.

Preferably, the information obtaining unit obtains the value of the first type network device and the number of the changed devices among the list of the second type network device having the connection area smaller than that of the first type network device And the change index value is calculated based on at least one of the values given thereto.

Preferably, the information obtaining unit obtains a value obtained by giving a first weight to a value given as to whether or not a first type of network device has been changed, and a value given based on the number of changed devices in the list of network devices of the second type And the change indicator value is calculated on the basis of at least one of the result values obtained by assigning the second weights.

According to a second aspect of the present invention, there is provided a policy management apparatus for managing a change in a network-related information, the network- An information generation unit for generating a network selection policy corresponding to a current location of the transmission apparatus according to a policy request received from the transmission apparatus; And a policy providing unit for providing the generated network selection policy to the transmitting apparatus to guide selective access to the network apparatus.

Advantageously, said change indicator value comprises a value of the first type of network device and a value of the second type of network device having a smaller connection area than said first type of network device, Based on at least one of the values given in accordance with the number of pixels.

According to a third aspect of the present invention, there is provided a simultaneous service method for heterogeneous network-based data according to the third aspect of the present invention, the method comprising the steps of: A change indicator value calculation step of calculating; An information determination step of determining whether the transmission apparatus exceeds a threshold value of the calculated change indicator value; An information request step of requesting, by the transmitting apparatus, the network selection policy corresponding to the current position when the calculated change indicator value exceeds the threshold value, to the policy management apparatus; An information providing step in which the policy management apparatus generates a network selection policy corresponding to a current location of the transmission apparatus and provides the network selection policy to the transmission apparatus; And a data transmission step in which the transmitting apparatus selects and transmits two or more partial data divided from the data according to the network selection policy.

According to a fourth aspect of the present invention, there is provided a method of operating a transmitting apparatus, the method comprising: calculating a change index value relating to a change in network information over time based on network information according to a collected time A change indicator value calculation step; Acquiring a network selection policy corresponding to a current position when the calculated change indicator value exceeds a threshold value; A data selecting step of selecting at least two partial data items divided from the data according to the obtained network selection policy; And a data transmission step of transmitting the selected partial data.

Preferably, the change indicator value calculation step calculates the change indicator value based on at least one of whether the network device is changed and the number of changed devices among the list of detected network devices.

Advantageously, the step of calculating the indicator value comprises the steps of: calculating a value of the first type of network device and a value of the second type of network device having a smaller connection area than the first type of network device, And the change indicator value is calculated based on at least one of the values given in accordance with the number.

Preferably, the index value calculation step may calculate the index value based on a result of giving a first weight to a value given as to whether or not the first type of network device has been changed, and a second value, And the change indicator value is calculated on the basis of at least one of a result value obtained by adding a second weight to a given value.

According to a fifth aspect of the present invention, there is provided a method for operating a policy management apparatus, the method comprising the steps of: transmitting, by a transmitting apparatus, a change indicator value relating to a change over time of the network information, A policy request receiving step of receiving a policy request; An information generation step of generating a network selection policy corresponding to a current location of the transmission apparatus according to the policy request; And a policy providing step of providing the generated network selection policy to the transmitting apparatus to induce selective access to the network apparatus.

According to the heterogeneous network-based data concurrent transfer service method of the present invention, in the heterogeneous network environment, the transmission target data is divided and transmitted simultaneously according to the network selection policy, And a network selection policy that includes connectable network device information corresponding to the current position of the terminal device when the calculated change indicator value exceeds the threshold value, It is possible to implement an efficient and reliable heterogeneous network-based data concurrent transmission service by efficiently controlling the connection to the optimal network apparatus at the current position of the terminal apparatus. Further, the data transmission rate Can be increased.

1 is a schematic configuration diagram of a heterogeneous network-based data concurrent transmission service system according to an embodiment of the present invention;
2 is a schematic configuration diagram of a terminal device according to an embodiment of the present invention;
3 is a schematic configuration diagram of a policy management apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic flowchart illustrating a method of operating a heterogeneous network-based data concurrent transmission service system according to an embodiment of the present invention; FIG.
FIG. 5 is a schematic flowchart for explaining operations of a terminal device according to an embodiment of the present invention; FIG.
FIG. 6 is a schematic flowchart for explaining the operation of the policy management apparatus according to the embodiment of the present invention; FIG.

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

FIG. 1 shows a schematic configuration diagram of a heterogeneous network-based data concurrent transmission service system according to an embodiment of the present invention.

As shown in FIG. 1, the heterogeneous network-based data concurrent transmission service system according to the present invention divides data into two or more pieces of partial data, adds first partial data corresponding to a part of the two or more partial data, A terminal device (100) in a transmitting apparatus which transmits the virtual network connection information including the connection information and transmits the virtual network connection information to second partial data corresponding to another part of the two or more partial data, A first network device 200 for receiving the first partial data, a second network device 300 for receiving the second partial data from the terminal device 100, 1 partial data and receives the second partial data from the second network device 300, and receives the first partial data and the virtual data included in the second partial data And a management device (400) as a receiving device for generating the data by combining the first partial data and the second partial data according to the specific virtual network connection information based on the network connection information. In addition, the heterogeneous network-based data concurrent transfer service system according to the present invention includes a configuration including an external device 500 that receives combined data from the management device 400 and a policy management device 600 that provides a network selection policy Respectively.

The heterogeneous network-based data concurrent transmission service according to the present invention implements a configuration in which data is transmitted and received between the terminal device 100 and the external device 500, and data is transmitted and received using a plurality of heterogeneous networks.

Accordingly, in the present invention, the session is divided in the management apparatus 400 in order to realize simultaneous link transmission through a plurality of heterogeneous networks for one session. At this time, since the terminal device 100 is connected to each of the plurality of heterogeneous networks, it is recognized that the management device 400 recognizes that each of the simultaneous links through the plurality of heterogeneous networks is a link of one terminal device 100, It must be managed by the terminal device 100, that is, a single entity. For this purpose, it is inevitably required to allocate and manage additional virtual network connection information (e.g., virtual IP) for the coexistent transmission service corresponding to the terminal device 100. [

The external device 500 refers to a server device that transmits and receives data to and from the terminal device 100 through the management device 400. The external device 500 may transmit and receive data to and from the terminal device 100 through the management device 400, Portal service, and content providing service.

The heterogeneous networks may be various access networks including, for example, WCDMA, CDMA, WiBro, WLAN (WiFi) and LTE (Long Term Evolution), but in the present embodiment, (Hereinafter referred to as a " WiFi network ") which refers to a first network (hereinafter referred to as a 3G network) and a second wireless network (WiFi)

Accordingly, the first network device 200 refers to a 3G network, that is, a Gateway GPRS Support Node (GGSN) for operating a wireless packet service network. In addition, the second network device 300 includes a WiFi network, And an access point (AP) for operating a short-range wireless network.

Also, the terminal device 100 and the management device 400 may be a transmission device according to a service flow, i.e., a subject that transmits data using a simultaneous data transmission service, that is, according to an uplink process and a downlink process , Or a receiving device. For convenience of description, the present embodiment assumes that the terminal device 100 is located in a heterogeneous network environment and performs data transmission and reception, and assumes a management device 400 that provides a simultaneous data transmission service to the terminal device 100 .

The terminal device 100 acquires the network selection policy corresponding to the current location from the policy management device 600. [

That is, the terminal device 100 generates a plurality of second network devices 300 information for operating the cell information of the 3G network, that is, the first network device 200 information and the WiFi network, And compares the collected current network information with the previous network information, thereby calculating a change indicator value corresponding to the position movement state through the following equation (1).

[Equation 1]

Change indicator value = Whether the cell information of the 3G network is changed (Whether or not the first network device 200 is changed) * 3G change indicator weight (set value) + Number of changed devices in the list of the detected second network devices 300 * WiFi network change index Weight (set value)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, a different value may be assigned according to the weight by setting the weight according to the size and importance of each service coverage. For example, in the case of 3G, as the coverage is larger than that of the WiFi network, the change of the first network device 200 means that the second network device 300 located in the WiFi network has a larger travel distance than the change , It is desirable to set the 3G change indicator weight to be larger than the WiFi network change indicator weight.

In other words, the terminal device 100 confirms the changed state of the 3G network and the WiFi network according to the positional movement by comparing the collected current network information with the previous network information, and confirms the confirmed changed state through the [Equation 1] And the change index value is calculated in terms of a numerical value.

In addition, when the change indicator value exceeds the threshold value, the terminal device 100 compares the calculated change indicator value with a preset threshold value to determine whether to move the network selection policy, It is determined that sufficient location movement has been made for the policy change, and the policy management apparatus 100 requests a new network selection policy.

At this time, the terminal apparatus 100 transmits a policy request including the location information to the policy management apparatus 600 managing the state information for each of the second network apparatuses 300, for example, the number of connected terminal apparatuses and the traffic state, Information on the second network device 300 that can be used, which is selected based on the status information, among the plurality of second network devices 300 corresponding to the current position of the terminal device 100 from the policy management apparatus 600, It is possible to obtain the network selection policy including the connection target network device information.

In addition, the terminal device 100 may transmit a policy request including a list of the second network devices 300 sensed at the current location, and may transmit the policy request from the policy management device 600 to the available optimal device 2 Network device 300 information In other words, the network selection policy including the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 can be obtained .

In response to the policy request including the list of the second network devices 300 detected at the current location, the terminal device 100 responds to the detected network device list from the policy management device 600 Thereby obtaining the network selection policy including the connection target network device information in which the connection priority is set.

Furthermore, the terminal device 100 selects the partial data segmented from the transmission object data to use the simultaneous transmission service.

That is, the terminal device 100 divides the data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using the heterogeneous network environment, that is, the 3G network and the WiFi network. The division process is transmitted from the policy management device 600 Lt; / RTI > network selection policy.

In other words, the terminal device 100 confirms a first transmission rate for data transmission to the first network device 200 included in the network selection policy and a second transmission rate for data transmission to the second network device 300 Selects the first partial data to be transmitted to the first network device 200 among the divided partial data based on the confirmed transmission ratio and selects the second partial data to be transmitted to the second network device 300 among the remaining partial data .

Accordingly, the terminal device 100 performs the above-described data selection process based on the network selection policy and the traffic distribution rate for each network that is changed in real time, so that the relative use ratio of the 3G network and the WiFi network is changed to 10% 90% of WiFi network, 90% of 3G network and 10% of WiFi network, 50% of 3G network and 50% of WiFi network.

Then, the terminal device 100 accesses the specific second network device 200 based on the network selection policy and transmits the partial data.

That is, the terminal device 100 selects a WiFi network accessible from the current location based on the connection target network device information included in the network selection policy, that is, a plurality of second network devices 300 for operating the short- 2 network device 300 is selected and connected to the selected specific second network device 300 to transmit the second partial data.

Accordingly, the terminal device 100 transmits the first partial data to the first network device 200 located in the 3G network, and the first network device 200 transmits the first partial data to the management device 400 ). Then, the terminal device 100 transmits the second partial data to the specific second network device 300 selected based on the connection target network device information, and the second network device 300 transmits the second partial data as the receiving device Management device 400 as shown in FIG.

The management device 400 receives the first partial data from the first network device 200 and receives the second partial data from the second network device 300 and includes the received first partial data and the second partial data The first partial data and the second partial data are combined based on the virtual network connection information to generate data, thereby restoring the transmission target data to be transmitted from the terminal device 100. [

That is, the management apparatus 400 recognizes the first partial data and the second partial data having the same virtual network connection information based on the virtual network connection information included in the received partial data, and stores them in an order By combining and combining them according to the information, original transfer target data can be generated.

Then, the management apparatus 400 may use the connection information of the external device corresponding to the final destination recognized through the partial data of at least one of the first partial data and the second partial data, And transmits the data to be transmitted.

As described above, the first partial data and the second partial data, which are divided in the terminal device 100, are combined by the management device 400 in the process of passing through the management device 400 through the heterogeneous network and are restored to the original transmission target data , And the restored data to be transmitted is transmitted as one data to the external device 500 which is the final destination.

The policy management apparatus 600 obtains status information for each network device.

That is, the policy management apparatus 600 collects status information transmitted from the second network apparatus 300, for example, the number of connected terminal apparatuses and the traffic status in a set period or in real time, and manages the traffic information according to the second network apparatus 300 do.

In addition to the status information for each of the second network devices 300, the policy management device 600 may also include various network parameters on a heterogeneous network including, for example, subscriber preferences, subscriber types, subscription plans, And collects the network status information received from the terminal device 100 and the management apparatus 400 according to the change.

Also, the policy management apparatus 600 generates connection target network device information based on the obtained status information corresponding to the current position of the terminal device 100. [

That is, the policy management apparatus 600 receives a policy request for receiving a new network selection policy from the terminal device 100 in accordance with the change indicator value calculated to determine whether to move the network selection policy, . In this regard, the terminal device 100 includes the cell information of the 3G network, i.e., the first network device 200 information and the plurality of second network device 300 information for operating the WiFi network, And calculates the change indicator value corresponding to the position movement state by comparing the collected current network information with the previous network information. If the calculated change indicator value exceeds the preset threshold value , It is determined that sufficient location movement has been made to change the network selection policy, and a new network selection policy is requested.

In this case, when the policy management apparatus 600 receives the policy request including the location information from the terminal apparatus 100, the policy management apparatus 600 selects one of the plurality of second network apparatuses 300 corresponding to the current location of the terminal apparatus 100, It is possible to select the second network device 300 that is the most usable and selected based on the status information to generate the connection target network device information.

The policy management apparatus 600 receives the policy request including the list of the second network devices 300 sensed at the current position of the terminal apparatus 100 from the terminal apparatus 100, It is possible to generate the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 have.

In addition, the policy management apparatus 600 may be configured to determine whether the detected network device 300 is connected to the network device 300 based on the status information, in association with a policy request including a list of the second network device 300, The connection target network device information can be generated by setting the connection priority order corresponding to the list.

In addition, the policy management apparatus 600 provides the terminal apparatus 100 with a network selection policy including the generated connection target network apparatus information, thereby guiding the connection to the specific second network apparatus 300.

That is, the policy management apparatus 600 provides the terminal apparatus 100 with a network selection policy including the generated connection target network apparatus information, so that the terminal apparatus 100 can access the WiFi network accessible from the current location, It is possible to select and connect to the specific second network device 300 among the plurality of second network devices 300 for operating the short-range wireless network.

In addition to the connection target network device information, the policy management apparatus 600 may include various network parameters on a heterogeneous network including a subscriber preference, a subscriber type, a subscription plan, a type of a service target application, The network management apparatus 400 may be configured to divide data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using a heterogeneous network environment, that is, a 3G network and a WiFi network, based on network status information received from the device 100 and the management apparatus 400, And may provide the network selection policy to the terminal apparatus 100 and the management apparatus 400. [

Hereinafter, the terminal device 100 according to the embodiment of the present invention will be described in more detail with reference to FIG.

That is, the terminal device 100 includes an information obtaining unit 110 for obtaining a network selection policy corresponding to a current location, a control unit 120 for selecting partial data segmented from transmission target data, And a communication unit 130 connected to the second network device 300 and transmitting the partial data. The information obtaining unit 110 and the control unit 120 have a form mounted on an OS kernel mounted on the terminal device 100. The information obtaining unit 110 and the control unit 120 have a function of storing data And performs a series of operations for the coexistence transmission service. In addition, the communication unit 130 is a communication module for interfacing with the first network device 200 using the 3G network and interworking with the second network device 300 using the WiFi network.

The information obtaining unit 110 obtains a network selection policy corresponding to the current location from the policy management device 600. [

That is, the information obtaining unit 110 generates a plurality of second network devices 300 for operating cell information of the 3G network, i.e., the first network device 200 information and the WiFi network, And calculates the change indicator value corresponding to the position movement state through Equation (1) below by comparing the collected current network information with the previous network information.

[Equation 1]

Change indicator value = Whether the cell information of the 3G network is changed (Whether or not the first network device 200 is changed) * 3G change indicator weight (set value) + Number of changed devices in the list of the detected second network devices 300 * WiFi network change index Weight (set value)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, a different value may be assigned according to the weight by setting the weight according to the size and importance of each service coverage. For example, in the case of 3G, as the coverage is larger than that of the WiFi network, the change of the first network device 200 means that the second network device 300 located in the WiFi network has a larger travel distance than the change , It is desirable to set the 3G change indicator weight to be larger than the WiFi network change indicator weight.

In other words, the information obtaining unit 110 checks the changed state of the 3G network and the WiFi network according to the positional movement by comparing the collected current network information with the previous network information, and outputs the confirmed changed state to the [Equation 1] And the change index value is calculated.

In addition, the information obtaining unit 110 compares the calculated change indicator value with a preset threshold value to determine whether to move the network selection policy, and when the change indicator value exceeds the threshold, It is determined that sufficient location movement has been made for the selection policy change, and the policy management apparatus 100 requests a new network selection policy.

At this time, the information obtaining unit 110 transmits a policy request including the location information to the policy management apparatus 600 that manages the state information for each second network device 300, for example, the number of connected terminal apparatuses and the traffic state , Information on the optimal second network device 300 available for selection based on the status information among the plurality of second network devices 300 corresponding to the current position of the terminal device 100 from the policy management device 600, , The network selection policy including the connection target network device information can be obtained.

In addition, the information obtaining unit 110 transmits a policy request including a list of the second network devices 300 detected at the current location, It is possible to acquire the network selection policy including the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 have.

In addition, the information obtaining unit 110 obtains, from the policy management apparatus 600, the detected network device list in association with the operation of delivering the policy request including the list of the second network devices 300 detected at the current location It is possible to obtain the network selection policy including the connection target network device information in which the connection priority is set correspondingly.

The control unit 120 selects the divided partial data from the transmission target data to use the simultaneous transmission service.

That is, the control unit 120 divides the data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using the heterogeneous network environment, that is, the 3G network and the WiFi network. The division process is transmitted from the policy management apparatus 600 And may be performed according to a network selection policy.

In other words, the control unit 120 checks a first transmission rate for data transmission to the first network device 200 included in the network selection policy and a second transmission rate for data transmission to the second network device 300 , Selects first partial data to be transmitted to the first network device (200) among the divided partial data based on the confirmed transmission ratio, and selects second partial data to be transmitted to the second network device (300) among remaining partial data .

Accordingly, the control unit 120 performs the above-described data selection process based on the network selection policy and the traffic distribution rate for each network that is changed in real time, so that the relative use ratio of the 3G network and the WiFi network is changed to 10% 90% of the network, 90% of the 3G network and 10% of the WiFi network, 50% of the 3G network and 50% of the WiFi network.

The communication unit 130 accesses the specific second network device 200 based on the network selection policy and transmits the partial data.

That is, the communication unit 130 is configured to transmit the WiFi network that can be accessed at the current location based on the connection target network device information included in the network selection policy, that is, the second second network device 300, The network device 300 is selected and connected to the selected specific second network device 300 to transmit the second partial data.

Accordingly, the communication unit 130 transmits the first partial data to the first network device 200 located in the 3G network, and the first network device 200 transmits the first partial data to the management device 400 as the receiving device, . Then, the communication unit 130 transmits the second partial data to the selected second network device 300 based on the connection target network device information, and the second network device 300 then manages the second partial data as the receiving device To the device 400.

Hereinafter, a more specific configuration of the policy management apparatus 600 according to the embodiment of the present invention will be described with reference to FIG.

That is, the policy management apparatus 600 includes an information generation unit 610 that generates connection target network device information based on status information for each network device, and a network selection policy terminal apparatus 610 that includes the generated connection target network apparatus information And a policy providing unit (620) for providing the policy providing unit (100).

The information generation unit 610 acquires status information for each network device.

That is, the information generating unit 610 collects status information transmitted from the second network device 300, for example, the number of connected terminal apparatuses and traffic conditions in a set period or in real time, and manages the traffic information according to the second network apparatus 300 do.

In addition to the status information for each of the second network devices 300, the information generating unit 610 may generate various network parameters on the heterogeneous network including the subscriber preference, the subscriber type, the subscription plan, And collects the network status information received from the terminal device 100 and the management apparatus 400 according to the change.

The information generating unit 610 generates a network selection policy including connection target network device information based on the obtained status information corresponding to the current position of the terminal device 100. [

In other words, the information generating unit 610 receives a policy request for receiving a new network selection policy from the terminal device 100 in accordance with the change indicator value calculated to determine whether the network selection policy is changed for changing the network selection policy, . In this regard, the terminal device 100 includes the cell information of the 3G network, i.e., the first network device 200 information and the plurality of second network device 300 information for operating the WiFi network, And calculates the change indicator value corresponding to the position movement state by comparing the collected current network information with the previous network information. If the calculated change indicator value exceeds the preset threshold value , It is determined that sufficient location movement has been made to change the network selection policy, and a new network selection policy is requested.

In this case, when the policy request including the location information is received from the terminal device 100, the information generating unit 610 generates the information about the location of the second network device 300 corresponding to the current location of the terminal device 100, It is possible to select the second network device 300 that is the most usable and selected based on the status information to generate the connection target network device information.

The information generating unit 610 receives the policy request including the list of the second network devices 300 detected at the current position of the terminal device 100 from the terminal device 100, It is possible to generate the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 have.

In response to the policy request including the list of the second network devices 300 sensed at the current position received from the terminal device 100, the information generating unit 610 generates the information on the detected network device 300 based on the status information, The connection target network device information can be generated by setting the connection priority order corresponding to the list.

The policy providing unit 620 provides the terminal device 100 with a network selection policy including the created connection target network device information, thereby guiding the connection to the specific second network device.

That is, the policy providing unit 620 provides the terminal device 100 with a network selection policy including the generated connection target network device information, so that the terminal device 100 can provide the WiFi network accessible at the current location, It is possible to select and connect to the specific second network device 300 among the plurality of second network devices 300 for operating the short-range wireless network.

Meanwhile, the policy providing unit 620 may provide various network parameters on the heterogeneous network including the subscriber preference, the subscriber type, the subscription plan, the type of the service target application, The network management apparatus 400 may be configured to divide data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using a heterogeneous network environment, that is, a 3G network and a WiFi network, based on network status information received from the device 100 and the management apparatus 400, And may provide the network selection policy to the terminal apparatus 100 and the management apparatus 400. [

As described above, according to the heterogeneous network-based data concurrent transmission service system according to the present invention, in the heterogeneous network environment, the transmission target data is divided and simultaneously transmitted according to the network selection policy. And a network selection policy that includes connectable network device information corresponding to the current location of the terminal device when the calculated change indicator value exceeds the threshold value, Thereby efficiently and reliably controlling the connection to the optimal network device at the current location of the terminal device. Thus, it is possible to implement a heterogeneous network-based data concurrent transmission service with high reliability, and further, Through the data It is possible to increase the transfer speed.

Hereinafter, a heterogeneous network-based data concurrent transmission service method according to an embodiment of the present invention will be described with reference to FIG. 4 to FIG. Here, the configurations shown in FIGS. 1 to 3 will be described with reference to corresponding reference numerals for convenience of explanation.

First, referring to FIG. 4, a description will be made of a method of operating a heterogeneous network-based data concurrent transmission service system according to an embodiment of the present invention.

First, the terminal device 100 calculates a change index value corresponding to the position movement state (S110).

Preferably, the terminal device 100 generates a plurality of second network devices 300 for operating the cell information of the 3G network, i.e., the first network device 200 information and the WiFi network, ) Information, and compares the collected current network information with the previous network information to calculate a change indicator value corresponding to the position movement state through the following equation (1).

[Equation 1]

Change indicator value = Whether the cell information of the 3G network is changed (Whether or not the first network device 200 is changed) * 3G change indicator weight (set value) + Number of changed devices in the list of the detected second network devices 300 * WiFi network change index Weight (set value)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, a different value may be assigned according to the weight by setting the weight according to the size and importance of each service coverage. For example, in the case of 3G, as the coverage is larger than that of the WiFi network, the change of the first network device 200 means that the second network device 300 located in the WiFi network has a larger travel distance than the change , It is desirable to set the 3G change indicator weight to be larger than the WiFi network change indicator weight.

In other words, the terminal device 100 confirms the changed state of the 3G network and the WiFi network according to the positional movement by comparing the collected current network information with the previous network information, and confirms the confirmed changed state through the [Equation 1] And the change index value is calculated in terms of a numerical value.

If the calculated change indicator value exceeds the preset threshold value, the terminal device 100 transmits a policy request to the policy management apparatus 600 (S120 - S130).

Preferably, the terminal device 100 compares the calculated change indicator value with a predetermined threshold value to determine whether the change indicator value is to be changed for changing the network selection policy, and when the change indicator value exceeds the threshold value, It is determined that sufficient location movement has been made to change the network selection policy, and the policy management apparatus 100 requests a new network selection policy.

Then, the policy management apparatus 600 generates connection target network device information based on the acquired status information corresponding to the current position of the terminal device 100 (S140).

The policy management apparatus 600 may receive a policy request including positional information from the terminal apparatus 100 so that the plurality of second network apparatuses 300 corresponding to the current position of the terminal apparatus 100 , It is possible to select the second network device 300 that is the most usable and selected based on the status information to generate connection target network device information.

The policy management apparatus 600 receives the policy request including the list of the second network devices 300 sensed at the current position of the terminal apparatus 100 from the terminal apparatus 100, It is possible to generate the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 have.

In addition, the policy management apparatus 600 may be configured to determine whether the detected network device 300 is connected to the network device 300 based on the status information, in association with a policy request including a list of the second network device 300, The connection target network device information can be generated by setting the connection priority order corresponding to the list.

Further, the policy management apparatus 600 provides a connection to the specific second network device 300 by providing the network selection policy including the generated connection target network device information to the terminal device 100 (S150-S160 ).

Preferably, the policy management apparatus 600 provides the terminal apparatus 100 with a network selection policy including the generated connection target network apparatus information, so that the terminal apparatus 100 can transmit the network selection policy to the WiFi network That is, it is possible to select and connect to the specific second network device 300 among the plurality of second network devices 300 for operating the short-range wireless network.

In addition to the connection target network device information, the policy management apparatus 600 may include various network parameters on a heterogeneous network including a subscriber preference, a subscriber type, a subscription plan, a type of a service target application, The network management apparatus 400 may be configured to divide data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using a heterogeneous network environment, that is, a 3G network and a WiFi network, based on network status information received from the device 100 and the management apparatus 400, And may provide the network selection policy to the terminal apparatus 100 and the management apparatus 400. [

Then, the terminal device 100 selects the segmented partial data from the transmission object data to use the simultaneous transmission service (S170).

Preferably, the terminal device 100 divides data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using a heterogeneous network environment, that is, a 3G network and a WiFi network. Lt; RTI ID = 0.0 > a < / RTI >

In other words, the terminal device 100 confirms a first transmission rate for data transmission to the first network device 200 included in the network selection policy and a second transmission rate for data transmission to the second network device 300 Selects the first partial data to be transmitted to the first network device 200 among the divided partial data based on the confirmed transmission ratio and selects the second partial data to be transmitted to the second network device 300 among the remaining partial data .

Accordingly, the terminal device 100 performs the above-described data selection process based on the network selection policy and the traffic distribution rate for each network that is changed in real time, so that the relative use ratio of the 3G network and the WiFi network is changed to 10% 90% of WiFi network, 90% of 3G network and 10% of WiFi network, 50% of 3G network and 50% of WiFi network.

Then, the terminal device 100 accesses the specific second network device 200 based on the network selection policy and transmits the partial data (S180-S190).

Preferably, the terminal device 100 is a WiFi network accessible from the current location based on the connection target network device information included in the network selection policy, that is, a plurality of second network devices 300 for operating a short- The specific second network device 300 is selected and connected to the selected specific second network device 300 to transmit the second partial data.

Accordingly, the terminal device 100 transmits the first partial data to the first network device 200 located in the 3G network, and the first network device 200 transmits the first partial data to the management device 400 ). Then, the terminal device 100 transmits the second partial data to the specific second network device 300 selected based on the connection target network device information, and the second network device 300 transmits the second partial data as the receiving device Management device 400 as shown in FIG.

Thereafter, the management apparatus 400 receives the first partial data from the first network device 200 and receives the second partial data from the second network device 300, and the received first partial data and the second partial data (S200 - S210). The first partial data and the second partial data are combined based on the virtual network connection information included in the virtual network connection information to generate data, thereby restoring the transmission target data to be transmitted from the terminal device 100 (S200 - S210).

Preferably, the management apparatus 400 recognizes the first partial data and the second partial data having the same virtual network connection information based on the virtual network connection information included in the received partial data, and stores them in the corresponding partial data The original transfer target data can be generated by combining and combining them in accordance with the order information. Then, the management apparatus 400 uses the connection information of the external apparatus 500 corresponding to the final destination recognized through the partial data of at least any one of the first partial data and the second partial data, And transmits the restored data to be transmitted.

As described above, the first partial data and the second partial data, which are divided in the terminal device 100, are combined by the management device 400 in the process of passing through the management device 400 through the heterogeneous network and are restored to the original transmission target data , And the restored data to be transmitted is transmitted as one data to the external device 500 which is the final destination.

Hereinafter, an operation method of the terminal device 100 according to the embodiment of the present invention will be described with reference to FIG.

First, the change indicator value corresponding to the movement state is calculated (S310 - S320).

Preferably, the information obtaining unit 110 generates a plurality of second network devices (hereinafter, referred to as " first network devices 200 ") for operating cell information of the 3G network, 300) information, and compares the collected current network information with the previous network information to calculate a change indicator value corresponding to the position movement state through the following equation (1).

[Equation 1]

Change indicator value = Whether the cell information of the 3G network is changed (Whether or not the first network device 200 is changed) * 3G change indicator weight (set value) + Number of changed devices in the list of the detected second network devices 300 * WiFi network change index Weight (set value)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, a different value may be assigned according to the weight by setting the weight according to the size and importance of each service coverage. For example, in the case of 3G, as the coverage is larger than that of the WiFi network, the change of the first network device 200 means that the second network device 300 located in the WiFi network has a larger travel distance than the change , It is desirable to set the 3G change indicator weight to be larger than the WiFi network change indicator weight.

In other words, the information obtaining unit 110 checks the changed state of the 3G network and the WiFi network according to the positional movement by comparing the collected current network information with the previous network information, and outputs the confirmed changed state to the [Equation 1] And the change index value is calculated.

Then, the calculated change indicator value acquires the preset threshold value network selection policy (S330-S350).

Preferably, the information obtaining unit 110 compares the calculated change indicator value with a preset threshold value to determine whether to move the network selection policy change, and if the change indicator value exceeds the threshold value , It is determined that sufficient location movement has been made to change the network selection policy, and a new network selection policy is requested to the policy management apparatus 100.

At this time, the information obtaining unit 110 transmits a policy request including the location information to the policy management apparatus 600 that manages the state information for each second network device 300, for example, the number of connected terminal apparatuses and the traffic state , Information on the optimal second network device 300 available for selection based on the status information among the plurality of second network devices 300 corresponding to the current position of the terminal device 100 from the policy management device 600, , The network selection policy including the connection target network device information can be obtained.

In addition, the information obtaining unit 110 transmits a policy request including a list of the second network devices 300 detected at the current location, It is possible to acquire the network selection policy including the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 have.

In addition, the information obtaining unit 110 obtains, from the policy management apparatus 600, the detected network device list in association with the operation of delivering the policy request including the list of the second network devices 300 detected at the current location It is possible to obtain the network selection policy including the connection target network device information in which the connection priority is set correspondingly.

Then, in order to use the simultaneous transmission service, the divided partial data is selected from the transmission target data (S360).

Preferably, the controller 120 divides data to be transmitted to correspond to the number of networks for simultaneous transmission of data using a heterogeneous network environment, that is, a 3G network and a WiFi network. The division process is performed by the policy management apparatus 600 And may be performed according to the network selection policy to be transmitted.

In other words, the control unit 120 checks a first transmission rate for data transmission to the first network device 200 included in the network selection policy and a second transmission rate for data transmission to the second network device 300 , Selects first partial data to be transmitted to the first network device (200) among the divided partial data based on the confirmed transmission ratio, and selects second partial data to be transmitted to the second network device (300) among remaining partial data .

Accordingly, the control unit 120 performs the above-described data selection process based on the network selection policy and the traffic distribution rate for each network that is changed in real time, so that the relative use ratio of the 3G network and the WiFi network is changed to 10% 90% of the network, 90% of the 3G network and 10% of the WiFi network, 50% of the 3G network and 50% of the WiFi network.

Thereafter, the second network device 200 is connected to the second network device 200 based on the network selection policy to transmit the partial data (S370-S380).

Preferably, the communication unit 130 is configured to select a WiFi network accessible from the current location based on the connection target network device information included in the network selection policy, that is, a plurality of second network devices 300 for operating a short- The second network device 300 is selected and connected to the selected specific second network device 300 to transmit the second partial data.

Accordingly, the communication unit 130 transmits the first partial data to the first network device 200 located in the 3G network, and the first network device 200 transmits the first partial data to the management device 400 as the receiving device, . Then, the communication unit 130 transmits the second partial data to the selected second network device 300 based on the connection target network device information, and the second network device 300 then manages the second partial data as the receiving device To the device 400.

Hereinafter, an operation method of the policy management apparatus 600 according to the embodiment of the present invention will be described with reference to FIG.

First, status information for each network device is obtained (S410).

The information generating unit 610 may collect status information, for example, the number of connected terminal apparatuses and traffic conditions transmitted from the second network apparatus 300 in a set period or in real time, . In addition to the status information for each of the second network devices 300, the information generating unit 610 may generate various network parameters on the heterogeneous network including the subscriber preference, the subscriber type, the subscription plan, And collects the network status information received from the terminal device 100 and the management apparatus 400 according to the change.

Then, a network selection policy including connection target network device information is generated based on the obtained status information corresponding to the current position of the terminal device 100 (S420-S450).

Preferably, the information generating unit 610 generates a new network selection policy for receiving a new network selection policy from the terminal device 100 in accordance with the change indicator value calculated to determine whether the network selection policy is changed for changing the network selection policy, And receives a policy request. In this regard, the terminal device 100 includes the cell information of the 3G network, i.e., the first network device 200 information and the plurality of second network device 300 information for operating the WiFi network, And calculates the change indicator value corresponding to the position movement state by comparing the collected current network information with the previous network information. If the calculated change indicator value exceeds the preset threshold value , It is determined that sufficient location movement has been made to change the network selection policy, and a new network selection policy is requested.

In this case, when the policy request including the location information is received from the terminal device 100, the information generating unit 610 generates the information about the location of the second network device 300 corresponding to the current location of the terminal device 100, It is possible to select the second network device 300 that is the most usable and selected based on the status information to generate the connection target network device information.

The information generating unit 610 receives the policy request including the list of the second network devices 300 detected at the current position of the terminal device 100 from the terminal device 100, It is possible to generate the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current position of the terminal device 100 have.

In response to the policy request including the list of the second network devices 300 sensed at the current position received from the terminal device 100, the information generating unit 610 generates the information on the detected network device 300 based on the status information, The connection target network device information can be generated by setting the connection priority order corresponding to the list.

Thereafter, the network selection policy including the generated connection target network device information is provided to the terminal device 100 to induce the connection to the specific second network device (S460).

Preferably, the policy providing unit 620 provides the terminal apparatus 100 with a network selection policy including the generated connection target network apparatus information, so that the terminal apparatus 100 can transmit the network selection policy to the WiFi network That is, it is possible to select and connect to the specific second network device 300 among the plurality of second network devices 300 for operating the short-range wireless network.

Meanwhile, the policy providing unit 620 may provide various network parameters on the heterogeneous network including the subscriber preference, the subscriber type, the subscription plan, the type of the service target application, The network management apparatus 400 may be configured to divide data to be transmitted to correspond to the number of networks in order to simultaneously transmit data using a heterogeneous network environment, that is, a 3G network and a WiFi network, based on network status information received from the device 100 and the management apparatus 400, And may provide the network selection policy to the terminal apparatus 100 and the management apparatus 400. [

As described above, according to the heterogeneous network-based data concurrent transfer service method according to the present invention, in the heterogeneous network environment, the transmission target data is divided and simultaneously transmitted according to the network selection policy, And a network selection policy that includes connectable network device information corresponding to the current location of the terminal device when the calculated change indicator value exceeds the threshold value, Thereby efficiently and reliably controlling the connection to the optimal network device at the current position of the terminal device. Thus, it is possible to realize a heterogeneous network-based data concurrent transmission service which is efficient and reliable, and further, Data through It is possible to increase the speed.

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 terminal device. Alternatively, the processor and the storage medium may be included as separate components within the 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.

According to the heterogeneous network-based data concurrent transmission service system and method of the present invention, in a heterogeneous network environment, data to be transmitted are divided and transmitted simultaneously according to a network selection policy. And if the calculated change indicator value exceeds the threshold value, provides a network selection policy including connectable network device information corresponding to the current position of the terminal device Since it is possible to carry out not only the use of the related technology but also the possibility of marketing or operating the device to be applied, It is an available invention.

100: terminal device
110: information obtaining unit 120:
130:
200: first network device
300: second network device
400: management device
500: External device
600: Policy management device
610: Information generator 620: Policy provider

Claims (12)

And a change indicator value indicating a change status of the network information according to time is calculated by comparing the collected current network information and the previous network information, and when the calculated change indicator value exceeds the threshold value, An information acquiring unit for acquiring a network selection policy corresponding to a current location by determining that a current location of the current network information collection point has been moved from a location by a distance corresponding to the threshold value;
A control unit for selecting at least two partial data items divided from the data according to the obtained network selection policy; And
And a communication unit for transmitting the selected partial data. The method according to claim 1,
The information obtaining unit obtains,
Wherein the change indicator calculating unit calculates the change indicator value based on at least any one of whether the network device is changed and the number of changed devices in the list of detected network devices. 3. The method of claim 2,
The information obtaining unit obtains,
Based on at least one of a value given as to whether or not a first type of network device has been changed and a value given according to the number of changed devices in the list of second type network devices having a smaller connection area than the first type of network device And calculates said change index value. The method of claim 3,
The information obtaining unit obtains,
A result value obtained by assigning a first weight to a value given as to whether or not a first type of network device has been changed and a result value obtained by assigning a second weight to a value given according to the number of devices changed in the list of network devices of the second type And calculates said change index value based on one of said plurality of change index values. And a change indicator value indicating a change status of the network information according to time is calculated by comparing the collected current network information and the previous network information, and when the calculated change indicator value exceeds the threshold value, To generate a network selection policy corresponding to a current location of the transmitting apparatus according to a policy request received from a transmitting apparatus that determines that the current position of the current network information collecting time has been shifted by a distance corresponding to the threshold value, ; And
And a policy providing unit for providing the generated network selection policy to the transmitting apparatus to induce selective access to the network apparatus. 6. The method of claim 5,
Wherein the change indicator value
Based on at least one of a value given as to whether or not a first type of network device has been changed and a value given according to the number of changed devices in the list of second type network devices having a smaller connection area than the first type of network device The policy management apparatus comprising: A change indicator value calculation step of calculating a change indicator value indicating a change state of the network information with respect to time by comparing the current network information and the previous network information collected by the transmitter;
An information determination step of determining whether the transmission apparatus exceeds a threshold value of the calculated change indicator value;
If the calculated change indicator value exceeds the threshold value, the transmitting apparatus determines that the current position of the current network information collection point is shifted from the previous position of the previous network information collection point by a distance corresponding to the threshold value, An information request step of requesting the policy management apparatus for a network selection policy corresponding to the current location;
An information providing step in which the policy management apparatus generates a network selection policy corresponding to a current location of the transmission apparatus and provides the network selection policy to the transmission apparatus; And
Wherein the transmitting apparatus selects and transmits at least two partial data segments divided from the data according to the network selection policy. A change indicator value calculation step of calculating a change indicator value indicating a change state of the network information with respect to time by comparing the current network information and the previous network information collected by the transmitter;
Determining that the current location of the current network information collection point has been moved by a distance corresponding to the threshold value from a previous location of the previous network information collection point when the calculated change indicator value exceeds the threshold value, An information acquiring step of acquiring a network selection policy;
A data selecting step of selecting at least two partial data items divided from the data according to the obtained network selection policy; And
And a data transmission step of transmitting the selected partial data. 9. The method of claim 8,
The change index value calculating step may include:
Wherein the change indicator value is calculated based on at least any one of a change in the network device and a number of changed devices in the list of detected network devices. 10. The method of claim 9,
The change index value calculating step may include:
Based on at least one of a value given as to whether or not a first type of network device has been changed and a value given according to the number of changed devices in the list of second type network devices having a smaller connection area than the first type of network device And the change index value is calculated based on the change indicator value. 11. The method of claim 10,
The change index value calculating step may include:
A result value obtained by assigning a first weight to a value given as to whether or not the first type network device has been changed and a result value obtained by assigning a second weight value to a value given according to the number of changed devices in the list of network devices of the second type And the change indicator value is calculated based on at least one of the change indicator values. And a change indicator value indicating a change status of the network information according to time is calculated by comparing the collected current network information and the previous network information, and when the calculated change indicator value exceeds the threshold value, A policy request receiving step of receiving a policy request from a transmitting apparatus judging that a current position of the current network information collecting time has been shifted from a position by a distance corresponding to the threshold value;
An information generation step of generating a network selection policy corresponding to a current location of the transmission apparatus according to the policy request; And
And providing a generated network selection policy to the transmitting apparatus to guide selective access to the network apparatus.

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