KR20130017550A - Apparatus and method for simultaneously transmitting data in heterogeneous network - Google Patents

Abstract

PURPOSE: A heterogeneous network based data simultaneous transmission service method and apparatus thereof are provided to induce a terminal device to access a network by providing a network selection policy including network device information. CONSTITUTION: An information acquisition unit(110) calculates conversion index values according to network information based on collected time. When the calculated conversion index value is over a threshold value, the information acquisition unit acquires a network selection policy corresponding to a current location. A control unit(120) selects two or more part data according to the acquired network selection policy. A communication unit(130) transmits the selected part data. [Reference numerals] (110) Information acquisition unit; (120) Control unit; (130) Communication unit

Description

Heterogeneous network-based data transmission service method and apparatus applied thereto {APPARATUS AND METHOD FOR SIMULTANEOUSLY TRANSMITTING DATA IN HETEROGENEOUS NETWORK}

The present invention relates to a data simultaneous transmission method, and more particularly, in the heterogeneous network (Heterogeneous network) environment, in the simultaneous transmission of the data to be transmitted according to the network selection policy, by monitoring the location movement of the terminal device Computing a change indicator value corresponding to the position movement state, 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 The present invention relates to a heterogeneous network-based simultaneous data transmission service method for inducing a connection, a method for operating a transmitter and a transmitter, and a method for operating a policy manager and a policy manager.

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.

The present invention has been made in view of the above circumstances, and an object of the present invention is to calculate a change index value for a change over time of the network information based on the network information according to the time at which the transmission apparatus is collected. And determining whether or not the calculated change indicator value exceeds the threshold value. When the calculated change indicator value exceeds the threshold value, the policy management device requests a network selection policy corresponding to the current location. The device generates a network selection policy corresponding to the current location of the transmitting device and provides the same to the transmitting device, wherein the transmitting device selects and transmits two or more pieces of partial data divided from the data according to the network selection policy. Provides a simultaneous data transmission service method that can be connected to the terminal's current location 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.

The present invention was created in view of the above circumstances, and another object of the present invention is to calculate a change index value for a change over time of the network information based on the network information according to the collected time, When the calculated change indicator value exceeds a threshold, a network selection policy corresponding to a current location is obtained, and two or more pieces of partial data divided from data are selected according to the obtained network selection policy, and the selected partial data is transmitted. The present invention provides a transmitter and a method of operating the same to generate connectable network device information corresponding to a current location of the terminal device, and provides a network selection policy including the generated information to induce connection of the terminal device.

The present invention has been made in view of the above circumstances, and another object to be achieved in the present invention is a change regarding a change over time of the network information calculated based on network information according to a collected time of a transmitter. When the indicator value exceeds the threshold, the policy request is received from the transmitter to generate a network selection policy corresponding to the current location of the transmitter, and the generated network selection policy is provided to the transmitter to the network apparatus. Providing a policy management device for inducing a selective access and a method of operating the same, generating accessible network device information corresponding to the current location of the terminal device, and providing a network selection policy including the generated information to provide access to the terminal device. To induce.

The transmitter according to the first aspect of the present invention for achieving the above object, calculates the change indicator value for the change over time of the network information based on the network information over the collected time, the calculated change indicator An information acquisition unit obtaining a network selection policy corresponding to the current location when the value exceeds a threshold; A control unit for selecting two or more pieces of partial data divided from the data according to the obtained network selection policy; And a communication unit for transmitting the selected partial data.

Preferably, the information acquisition unit is configured to calculate the change indicator value based on at least one of whether the network device is changed and the number of changed devices in the detected list of network devices.

Preferably, the information acquisition unit, the value given to whether the network device of the first type is changed and the number of changed devices in the list of network devices of the second type having a smaller connection area than the network device of the first type. The change indicator value is calculated based on at least one of the given values.

Preferably, the information acquisition unit, the result obtained by assigning a first weight to a value given to whether or not the network device of the first type is changed and a value given according to the number of changed devices in the list of the network device of the second type The change indicator value is calculated based on at least one of the second weighted result values.

Policy management apparatus according to a second aspect of the present invention for achieving the above object, the change indicator value for the change over time of the network information calculated based on the network information over the collected time exceeds a threshold value An information generation unit for generating a network selection policy corresponding to the current location of the transmission device in response to a policy request received from the transmission device; And a policy provider for providing the generated network selection policy to the transmitting device to induce a selective access to a network device.

Preferably, the change indicator value is a value given to whether or not the network device of the first type has been changed and a device of the changed device in the list of network devices of the second type having a smaller connection area than the network device of the first type. It is characterized by being calculated based on at least one of the values given according to the number.

In the heterogeneous network-based data simultaneous service method according to the third aspect of the present invention for achieving the above object, the change indicator value for the change over time of the network information based on the network information according to the time when the transmitter is collected; Calculating a change index value calculating step; An information determination step of determining, by the transmitter, whether or not the calculated change indicator value exceeds a threshold value; An information requesting step, wherein the transmission device requests a policy management device for a network selection policy corresponding to a current location when the calculated change indicator value exceeds the threshold value; An information providing step of generating, by the policy management apparatus, a network selection policy corresponding to the current location of the transmitting apparatus and providing the same to the transmitting apparatus; And a data transmission step of the transmission apparatus selecting and transmitting two or more pieces of partial data divided from the data according to the network selection policy.

A method of operating a transmitter according to a fourth aspect of the present invention for achieving the above object is to calculate a change indicator value for a change over time of the network information based on network information according to a time at which the transmitter is collected. Change indicator value calculating step; An information acquisition step of acquiring a network selection policy corresponding to the current location when the calculated change indicator value exceeds a threshold value; A data selection step of selecting at least two partial data divided from data according to the obtained network selection policy; And a data transmission step of transmitting the selected partial data.

Preferably, the step of calculating the change indicator value is characterized in that for calculating the change indicator value based on at least one of whether the network device is changed and the number of changed devices in the list of the detected network device.

Preferably, the step of calculating the index value may include determining whether the changed value is selected from a list of network devices of the second type having a value given to whether the first type of network device has changed and a connection area smaller than that of the first type of network device. The change indicator value is calculated based on at least one of the values given according to the number.

Preferably, the step of calculating the index value may be based on a result of applying a first weight to a value given to whether the first type of network device has changed or the number of changed devices in the list of the second type of network device. The change indicator value is calculated based on at least one of the resultant values of which the second weight is given to the given value.

In the method of operating the policy management apparatus according to the fifth aspect of the present invention for achieving the above object, the change indicator value for the change over time of the network information calculated based on the network information over time in the transmitting apparatus is thresholded. A policy request receiving step for receiving a policy request when exceeding a value; An information generation step of generating a network selection policy corresponding to the current location of the transmitting device according to the policy request; And providing the generated network selection policy to the transmitting device to induce a selective access to a network device.

Accordingly, according to the heterogeneous network-based simultaneous data transmission service method of the present invention, in the heterogeneous network environment, in the simultaneous transmission of the data to be transmitted according to the network selection policy, the monitoring of the location movement of the terminal device is performed. Computing a change indicator value corresponding to the position movement state, 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 By inducing the access of the network, the efficient control of the heterogeneous network-based data transmission service can be realized by efficiently controlling the access to the optimal network device at the current location of the terminal device. Can be increased.

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

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

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

As shown in FIG. 1, the heterogeneous network-based data transmission service system according to the present invention divides data into two or more pieces of partial data, and assigns a specific virtual network to first partial data corresponding to a portion of the two or more pieces of partial data. From the terminal apparatus 100 and the terminal apparatus 100 of the transmitting apparatus including the transmission information and transmitting the virtual network connection information in the second partial data corresponding to another part of the two or more partial data and transmitting the same. The first network apparatus 200 for receiving the first partial data, the second network apparatus 300 for receiving the second partial data from the terminal apparatus 100 and the first network apparatus 200 from the first network apparatus 200. Receives the first partial data and the second partial data from the second network device 300, 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 transmission service system according to the present invention includes an external device 500 for receiving the combined data from the management device 400 and a policy management device 600 for providing a network selection policy. Has

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

Accordingly, in the present invention, session division is performed in the management apparatus 400 to implement simultaneous link transmission through a plurality of heterogeneous networks for one session. In this case, since the terminal device 100 is connected to each of a plurality of heterogeneous networks, the management device 400 recognizes that the terminal device 100 is a link of one terminal device 100 for each simultaneous link through the plurality of heterogeneous networks. The terminal device 100 must be managed as one subject. To this end, it is necessary to allocate and manage separate virtual network access information (eg, virtual IP) for the transmission service in correspondence with the terminal device 100.

The external device 500 refers to a server device that performs data transmission and reception with the terminal device 100 through the management device 400, for example, to the terminal device 100 through data transmission and reception through the management device 400, Various services such as portal service and content providing service can be provided.

The heterogeneous network may correspond to various access networks including, for example, WCDMA, CDMA, WiBro, WLAN (WiFi), and Long Term Evolution (LTE). ) And a second network (hereinafter, referred to as a "3G network") and a second network (hereinafter referred to as a "WiFi network") which refer to a local area wireless network (WiFi).

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.

In addition, the terminal device 100 and the management device 400 may also be a transmission device according to the uplink process and the downlink process according to the subject that transmits data using a service flow, that is, data simultaneous transmission service. It can also be a receiver. In the present embodiment, for convenience of description, assuming a description of a terminal device 100 that performs data transmission and reception in a heterogeneous network environment, and assumes a management device 400 that provides simultaneous data transmission service to the terminal device 100. This will be described.

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

That is, the terminal device 100 generates an event, for example, cell information of the 3G network, that is, information of the first network device 200 and information of a plurality of second network devices 300 for operating the WiFi network at a corresponding location every setting cycle. Collecting and storing network information including a, and comparing the collected current network information and the previous network information to calculate the change indicator value corresponding to the location movement state through the following [Equation 1].

[Equation 1]

Change indicator value = Whether to change the cell information of the 3G network (1st network device 200 change) * 3G change indicator weight (setting value) + the number of changed devices in the searched second network device 300 list * WiFi network change indicator Weight (setpoint)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, different values may be assigned according to the user designation by weighting 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 is greater than the change of the second network device 300 located in the WiFi network. Since it is meant, it would be 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 compares the collected current network information with previous network information to check the changed state of the 3G network and the WiFi network according to the movement of the location, and confirms the changed state through the above [Formula 1]. The change indicator value is calculated numerically.

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

In this case, the terminal device 100 transmits a state request for each second network device 300, for example, the number of connected terminal devices and a policy request including location information to the policy management device 600 that manages traffic conditions. Among the plurality of second network apparatuses 300 corresponding to the current location of the terminal apparatus 100 from the policy management apparatus 600, information on the optimal available second network apparatus 300 that is selected based on the state information, that is, A network selection policy including the connection target network device information may be obtained.

In addition, the terminal device 100 transmits a policy request including a list of the second network device 300 detected at the current location, thereby selecting the optimal available agent selected from the policy management device 600 based on the state information. In other words, the network device 300 may acquire a network selection policy including information on a connection target network device corresponding to a part of the list of the second network device 300 detected at the current location of the terminal device 100. .

In addition, the terminal device 100 corresponds to the detected network device list from the policy management device 600 in connection with the operation of transmitting a policy request including a list of the second network device 300 detected at the current location. In this way, the network selection policy including the connection target network device information in which the access priority is set may be obtained.

Further, the terminal device 100 selects the partial data divided from the transmission target data in order to use the simultaneous transmission service.

That is, the terminal device 100 divides the transmission target data to correspond to the number of networks for simultaneous data transmission using heterogeneous network environments, that is, 3G networks and WiFi networks, and the division process is transmitted from the policy management apparatus 600. Can be performed according to the network selection policy.

In other words, the terminal device 100 confirms the first transmission rate for data transmission to the first network device 200 and the second transmission rate for data transmission to the second network device 300 included in the network selection policy. And selecting first partial data to be transmitted to the first network apparatus 200 among the divided partial data based on the confirmed transmission rate, and second partial data to be transmitted to the second network apparatus 300 among the remaining partial data. Will be selected.

By doing so, 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, which is changed in real time, so that the relative utilization ratio of the 3G network and the WiFi network is 10% and 3G network, for example. It can be applied such as WiFi network 90%, 3G network 90% and WiFi network 10%, 3G network 50% and WiFi network 50%, etc.

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 is a specific agent of a plurality of second network devices 300 for operating a WiFi network, that is, a short-range wireless network, which can be accessed from the current location based on the connection target network device information included in the network selection policy. The second network device 300 is screened, and the second network data is transmitted by connecting to the selected second network device 300.

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 as the receiving device. Will be sent). 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 a receiving device. The management device 400 will transmit.

The management device 400 receives the first partial data from the first network device 200 and the second partial data from the second network device 300 and includes the received first partial data and the second partial data. By generating the data by combining the first partial data and the second partial data based on the virtual network access information, the transmission target data to be transmitted by the terminal apparatus 100 is restored.

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

The management device 400 is restored to the external device 500 by using the connection information of the external device corresponding to the final destination recognized through at least one of the partial data and the first partial data. Transfer the data to be sent.

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

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

That is, the policy management apparatus 600 collects state information transmitted from the second network apparatus 300 in a setting cycle or in real time, for example, the number of connected terminal apparatuses and traffic conditions, and manages the second network apparatus 300 for each second network apparatus 300. do.

In addition, the policy management apparatus 600 may include various network parameters and network states on heterogeneous networks including, for example, subscriber preferences, subscriber types, subscription plans, types of service target applications, and the like, in addition to state information for each second network device 300. Network state information received from the terminal device 100 and the management device 400 according to the change is collected.

In addition, the policy management apparatus 600 generates connection target network device information based on the obtained state information corresponding to the current location of the terminal apparatus 100.

That is, the policy management apparatus 600 requests a policy for receiving a new network selection policy from the terminal device 100 as the change indicator value calculated for determining whether to move for changing the network selection policy exceeds a preset threshold. Will be received. In this regard, the terminal device 100 includes Cell information of a 3G network, that is, information of a first network device 200 and information on a plurality of second network devices 300 for operating a WiFi network at a corresponding location every setting cycle. Collecting and storing network information, and comparing the collected current network information with previous network information to calculate a change indicator value corresponding to a location movement state, and the calculated change indicator value may exceed a preset threshold. In this case, it is determined that sufficient location movement has been made to change the network selection policy and requests a new network selection policy.

In this case, when the policy request including location information is received from the terminal device 100, the policy management device 600 includes a plurality of second network devices 300 corresponding to the current location of the terminal device 100. It is possible to generate the connection target network device information by selecting the best available second network device 300 selected based on the status information.

In addition, the policy management apparatus 600 receives a policy request including a list of the second network apparatus 300 detected at the current location of the terminal apparatus 100 from the terminal apparatus 100, thereby selecting based on the state information. In other words, the optimal usable second network device 300 information may be generated, that is, the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current location of the terminal device 100. have.

In addition, the policy management device 600 is associated with the policy request including a list of the second network device 300 detected at the current location received from the terminal device 100, the detected network device based on the status information By setting the connection priority corresponding to the list, it is possible to generate connection target network device information.

Furthermore, the policy management apparatus 600 induces access to the specific second network apparatus 300 by providing the terminal apparatus 100 with a network selection policy including the generated connection target network apparatus information.

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.

Meanwhile, in addition to the access target network device information, the policy management apparatus 600 includes, for example, a terminal according to various network parameters and network state changes on heterogeneous networks including a subscriber preference, a subscriber type, a subscription plan, a type of a service target application, and the like. Based on the network state information received from the device 100 and the management device 400, the network to divide the transmission target data to correspond to the number of networks for the simultaneous transmission of data using a heterogeneous network environment, that is, 3G network and WiFi network The network selection policy including the relative utilization ratio between the two may be determined and provided to the terminal device 100 and the management device 400.

Hereinafter, the terminal device 100 according to an embodiment of the present invention will be described in more detail with reference to FIG. 2.

That is, the terminal device 100 includes an information acquisition unit 110 for obtaining a network selection policy corresponding to the current location, and a control unit 120 for selecting partial data divided from the transmission target data; And a communication unit 130 connected to the second network device 300 to transmit partial data. Here, the information acquisition unit 110 and the control unit 120 has a form mounted in the OS kernel mounted on the terminal device 100, the data in accordance with the request of a specific application embedded or downloaded to the terminal device 100 It performs a series of operations for the broadcast transmission service. In addition, 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.

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

That is, the information acquisition unit 110 generates an event, for example, cell information of the 3G network, i.e., information of the first network device 200 and a plurality of second network devices 300 for operating a WiFi network at a corresponding location every setting cycle. By collecting and storing network information including the information, and comparing the collected current network information with previous network information, a change indicator value corresponding to the location movement state is calculated through Equation 1 below.

[Equation 1]

Change indicator value = Whether to change the cell information of the 3G network (1st network device 200 change) * 3G change indicator weight (setting value) + the number of changed devices in the searched second network device 300 list * WiFi network change indicator Weight (setpoint)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, different values may be assigned according to the user designation by weighting 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 is greater than the change of the second network device 300 located in the WiFi network. Since it is meant, it would be desirable to set the 3G change indicator weight to be larger than the WiFi network change indicator weight.

In other words, the information acquisition unit 110 checks the changed state of the 3G network and the WiFi network according to the movement of the location by comparing the collected current network information with the previous network information, and identifies the changed state as shown in [Equation 1]. Through the numerical conversion, the change indicator value is calculated.

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

In this case, the information acquisition unit 110 transmits the policy information including the location information to the policy management device 600 for managing the state information for each second network device 300, for example, the number of terminal devices connected, the traffic state Among the plurality of second network apparatuses 300 corresponding to the current location of the terminal apparatus 100 from the policy management apparatus 600, information on the optimal available second network apparatus 300 that is selected based on the state information is available. In addition, the network selection policy including the connection target network device information can be obtained.

In addition, the information acquisition unit 110 transmits a policy request including a list of the second network device 300 detected at the current location, thereby selecting the optimum available from the policy management device 600 based on the state 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 location of the terminal device 100 may be obtained. have.

In addition, the information acquisition unit 110 in response to the operation of delivering a policy request including a list of the second network device 300 detected at the current location, from the policy management device 600 to the detected network device list Correspondingly, a network selection policy including connection target network device information having a connection priority set may be obtained.

The controller 120 selects the partial data divided from the transmission target data in order to use the simultaneous transmission service.

That is, the controller 120 divides the transmission target data to correspond to the number of networks for simultaneous data transmission using heterogeneous network environments, that is, 3G networks and WiFi networks, and the division process is transmitted from the policy management apparatus 600. Can be performed according to the network selection policy.

In other words, the controller 120 checks the first transmission rate for data transmission to the first network device 200 and the second transmission rate for data transmission to the second network device 300 included in the network selection policy. The first partial data to be transmitted to the first network device 200 is selected from among the divided partial data based on the confirmed transmission rate, and the second partial data to be transmitted to the second network device 300 among the remaining partial data. Will be chosen.

By doing so, the controller 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, thereby determining the relative utilization ratio of the 3G network and the WiFi network, for example, 10% of the 3G network and the WiFi. It can be applied to network 90%, 3G network 90% and WiFi network 10%, 3G network 50% and WiFi network 50%, etc.

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

That is, the communication unit 130 may determine a specific second of the plurality of second network devices 300 for operating a WiFi network that is accessible from the current location, that is, a short range wireless network, based on the connection target network device information included in the network selection policy. The network device 300 is selected, and the second partial data is transmitted by accessing the selected second network device 300.

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 a receiving device. Will send to. The communication unit 130 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 manages the second partial data as the receiving device. Will send to device 400.

Hereinafter, with reference to FIG. 3, a more detailed configuration of the policy management apparatus 600 according to an embodiment of the present invention will be described.

That is, the policy management apparatus 600 includes an information generation unit 610 for generating connection target network device information based on state information for each network device, and a network selection policy terminal device including the generated connection target network device information. It has a configuration that includes a policy providing unit 620 provided to (100).

The information generator 610 acquires state information for each network device.

That is, the information generation unit 610 collects state information transmitted from the second network device 300 in a set cycle or in real time, for example, the number of connected terminal devices and traffic conditions, and manages the second network device 300 for each second network device 300. do.

In addition, the information generation unit 610, in addition to the state information for each of the second network device 300, for example, various network parameters and network states on heterogeneous networks including subscriber preferences, subscriber types, subscription plans, types of service target applications, and the like. Network state information received from the terminal device 100 and the management device 400 according to the change is collected.

In addition, the information generation unit 610 generates a network selection policy including the connection target network device information based on the obtained state information corresponding to the current location of the terminal device 100.

That is, the information generation unit 610 requests a policy for receiving a new network selection policy from the terminal device 100 as the change indicator value calculated to determine whether to move for the network selection policy change exceeds a preset threshold. Will be received. In this regard, the terminal device 100 includes Cell information of a 3G network, that is, information of a first network device 200 and information on a plurality of second network devices 300 for operating a WiFi network at a corresponding location every setting cycle. Collecting and storing network information, and comparing the collected current network information with previous network information to calculate a change indicator value corresponding to a location movement state, and the calculated change indicator value may exceed a preset threshold. In this case, it is determined that sufficient location movement has been made to change the network selection policy and requests a new network selection policy.

In this case, when the policy request including location information is received from the terminal device 100, the information generating unit 610 includes a plurality of second network devices 300 corresponding to the current location of the terminal device 100. It is possible to generate the connection target network device information by selecting the best available second network device 300 selected based on the status information.

In addition, the information generating unit 610 receives a policy request including a list of the second network device 300 detected at the current location of the terminal device 100 from the terminal device 100, thereby selecting based on the status information. In other words, the optimal usable second network device 300 information may be generated, that is, the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current location of the terminal device 100. have.

In addition, the information generating unit 610 is associated with the policy request including a list of the second network device 300 detected at the current location received from the terminal device 100, the detected network device based on the status information By setting the connection priority corresponding to the list, it is possible to generate connection target network device information.

The policy provider 620 induces access to a specific second network device by providing the terminal device 100 with a network selection policy including the generated connection target network device information.

That is, the policy provider 620 provides the terminal device 100 with a network selection policy including the generated connection target network device information, thereby allowing the terminal device 100 to connect to a WiFi network that is accessible from the current location. Among a plurality of second network devices 300 for operating a short range wireless network, a specific second network device 300 may be selected and connected.

On the other hand, the policy providing unit 620, in addition to the connection target network device information, for example, the terminal according to various network parameters and network status changes on heterogeneous networks including subscriber preferences, subscriber types, subscription plans, types of service target applications, etc. Based on the network state information received from the device 100 and the management device 400, the network to divide the transmission target data to correspond to the number of networks for the simultaneous transmission of data using a heterogeneous network environment, that is, 3G network and WiFi network The network selection policy including the relative utilization ratio between the two may be determined and provided to the terminal device 100 and the management device 400.

As described above, according to the heterogeneous network-based simultaneous data transmission service system according to the present invention, in the heterogeneous network environment, the location movement of the terminal device in the simultaneous transmission by dividing the transmission target data according to the network selection policy A network selection policy including a connectable network device information corresponding to the current location of the terminal device is calculated by calculating a change indicator value corresponding to a location movement state through monitoring the state, and when the calculated change indicator value exceeds a threshold value. By inducing the connection of the terminal device by providing the terminal, it is possible to implement the efficient and reliable heterogeneous network-based data simultaneous transmission service by efficiently controlling the access to the optimal network device at the current location of the terminal device, and further, data segmentation transmission. Data through It is possible to increase the transfer speed.

Hereinafter, a heterogeneous network-based data transmission service method according to an embodiment of the present invention will be described with reference to FIGS. 4 to 6. Here, the above-described configuration shown in Figures 1 to 3 will be described by referring to the reference numerals for convenience of description.

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

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

Preferably, the terminal device 100 generates an event, for example, Cell information of the 3G network, that is, information of the first network device 200 and a plurality of second network devices 300 for operating a WiFi network at a corresponding location every setting cycle. ) By collecting and storing network information including information, and comparing the collected current network information with previous network information, a change indicator value corresponding to a location movement state is calculated through Equation 1 below.

[Equation 1]

Change indicator value = Whether to change the cell information of the 3G network (1st network device 200 change) * 3G change indicator weight (setting value) + the number of changed devices in the searched second network device 300 list * WiFi network change indicator Weight (setpoint)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, different values may be assigned according to the user designation by weighting 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 is greater than the change of the second network device 300 located in the WiFi network. Since it is meant, it would be 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 compares the collected current network information with previous network information to check the changed state of the 3G network and the WiFi network according to the movement of the location, and confirms the changed state through the above [Formula 1]. The change indicator value is calculated numerically.

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

Preferably, the terminal device 100 compares the calculated change indicator value with a preset threshold value to determine whether to move for a network selection policy change, and when the corresponding change indicator value exceeds the threshold value, It is determined that a sufficient location movement for changing the network selection policy has been made, so that 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 obtained state information corresponding to the current position of the terminal apparatus 100 (S140).

Preferably, when a policy request including location information is received from the terminal device 100, the policy management device 600 includes a plurality of second network devices 300 corresponding to the current location of the terminal device 100. The second network device 300 can be selected based on the state information to generate the connection target network device information.

In addition, the policy management apparatus 600 receives a policy request including a list of the second network apparatus 300 detected at the current location of the terminal apparatus 100 from the terminal apparatus 100, thereby selecting based on the state information. In other words, the optimal usable second network device 300 information may be generated, that is, the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current location of the terminal device 100. have.

In addition, the policy management device 600 is associated with the policy request including a list of the second network device 300 detected at the current location received from the terminal device 100, the detected network device based on the status information By setting the connection priority corresponding to the list, it is possible to generate connection target network device information.

Furthermore, the policy management apparatus 600 induces access to the specific second network apparatus 300 by providing the terminal apparatus 100 with a network selection policy including the generated connection target network apparatus information (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, thereby causing the terminal apparatus 100 to connect to the WiFi network at the current location. That is, among the plurality of second network devices 300 for operating the short range wireless network, the specific second network device 300 may be selected and connected.

Meanwhile, in addition to the access target network device information, the policy management apparatus 600 includes, for example, a terminal according to various network parameters and network state changes on a heterogeneous network including a subscriber preference, a subscriber type, a subscription plan, a type of a service target application, and the like. Based on the network state information received from the device 100 and the management device 400, the network to divide the transmission target data to correspond to the number of networks for the simultaneous transmission of data using a heterogeneous network environment, that is, 3G network and WiFi network The network selection policy including the relative utilization ratio between the two may be determined and provided to the terminal device 100 and the management device 400.

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

Preferably, the terminal device 100 divides the transmission target data 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. It may be performed according to the network selection policy delivered from.

In other words, the terminal device 100 confirms the first transmission rate for data transmission to the first network device 200 and the second transmission rate for data transmission to the second network device 300 included in the network selection policy. And selecting first partial data to be transmitted to the first network apparatus 200 among the divided partial data based on the confirmed transmission rate, and second partial data to be transmitted to the second network apparatus 300 among the remaining partial data. Will be selected.

By doing so, 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, which is changed in real time, so that the relative utilization ratio of the 3G network and the WiFi network is 10% and 3G network, for example. It can be applied such as WiFi network 90%, 3G network 90% and WiFi network 10%, 3G network 50% and WiFi network 50%, etc.

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 one of a plurality of second network devices 300 for operating a WiFi network that is accessible from a current location, that is, a short-range wireless network, based on the connection target network device information included in the network selection policy. 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 as the receiving device. Will be sent). 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 a receiving device. The management device 400 will transmit.

Thereafter, the management apparatus 400 receives the first partial data from the first network apparatus 200 and the second partial data from the second network apparatus 300, and receives the received first partial data and the second partial data. By generating data by combining the first partial data and the second partial data based on the virtual network access information included in the data, the transmission target data intended to be transmitted by the terminal apparatus 100 is restored (S200-S210).

Preferably, the management device 400 recognizes the first partial data and the second partial data having the same virtual network access information based on the virtual network access information included in the received partial data, and includes them in the corresponding partial data. By combining and combining according to the obtained order information, the original transmission target data can be generated. The management device 400 uses the connection information of the external device 500 corresponding to the final destination recognized through at least one of the first partial data and the second partial data, and the external device 500. Transmit the data to be restored.

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

Hereinafter, an operation method of the terminal device 100 according to an embodiment of the present invention will be described with reference to FIG. 5.

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

Preferably, the information acquisition unit 110 generates an event, for example, Cell information of the 3G network, i.e., information of the first network device 200 and a plurality of second network devices for operating the WiFi network at a corresponding location every setting cycle ( 300) By collecting and storing network information including the information, and comparing the collected current network information and the previous network information to calculate the change indicator value corresponding to the location movement state through [Equation 1] below.

[Equation 1]

Change indicator value = Whether to change the cell information of the 3G network (1st network device 200 change) * 3G change indicator weight (setting value) + the number of changed devices in the searched second network device 300 list * WiFi network change indicator Weight (setpoint)

Here, in the case of the 3G change indicator weight and the WiFi network change indicator weight, different values may be assigned according to the user designation by weighting 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 is greater than the change of the second network device 300 located in the WiFi network. Since it is meant, it would be desirable to set the 3G change indicator weight to be larger than the WiFi network change indicator weight.

In other words, the information acquisition unit 110 checks the changed state of the 3G network and the WiFi network according to the movement of the location by comparing the collected current network information with the previous network information, and identifies the changed state as shown in [Equation 1]. Through the numerical conversion, the change indicator value is calculated.

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

Preferably, the information acquisition unit 110 compares the calculated change indicator value with a preset threshold value to determine whether to move for a network selection policy change, so that the change indicator value exceeds the threshold value. In response to determining that sufficient location movement has been made for changing the network selection policy, the network management policy 100 requests a new network selection policy.

In this case, the information acquisition unit 110 transmits the policy information including the location information to the policy management device 600 for managing the state information for each second network device 300, for example, the number of terminal devices connected, the traffic state Among the plurality of second network apparatuses 300 corresponding to the current location of the terminal apparatus 100 from the policy management apparatus 600, information on the optimal available second network apparatus 300 that is selected based on the state information is available. In addition, the network selection policy including the connection target network device information can be obtained.

In addition, the information acquisition unit 110 transmits a policy request including a list of the second network device 300 detected at the current location, thereby selecting the optimum available from the policy management device 600 based on the state 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 location of the terminal device 100 may be obtained. have.

In addition, the information acquisition unit 110 in response to the operation of delivering a policy request including a list of the second network device 300 detected at the current location, from the policy management device 600 to the detected network device list Correspondingly, a network selection policy including connection target network device information having a connection priority set may be obtained.

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

Preferably, the control unit 120 divides the transmission target data to correspond to the number of networks for the simultaneous transmission of data using a heterogeneous network environment, that is, a 3G network and a WiFi network, and the division process is performed from the policy management apparatus 600. It may be performed according to the network selection policy delivered.

In other words, the controller 120 checks the first transmission rate for data transmission to the first network device 200 and the second transmission rate for data transmission to the second network device 300 included in the network selection policy. The first partial data to be transmitted to the first network device 200 is selected from among the divided partial data based on the confirmed transmission rate, and the second partial data to be transmitted to the second network device 300 among the remaining partial data. Will be chosen.

By doing so, the controller 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, thereby determining the relative utilization ratio of the 3G network and the WiFi network, for example, 10% of the 3G network and the WiFi. It can be applied to network 90%, 3G network 90% and WiFi network 10%, 3G network 50% and WiFi network 50%, etc.

Subsequently, access to the specific second network device 200 based on the network selection policy to transmit the partial data (S370-S380).

Preferably, the communication unit 130 is a particular of a plurality of second network device 300 for operating a WiFi network, that is, a short-range wireless network that can be accessed from the current location based on the connection target network device information included in the network selection policy. 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 a receiving device. Will send to. The communication unit 130 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 manages the second partial data as the receiving device. Will send to device 400.

Hereinafter, a method of operating the policy management apparatus 600 according to an embodiment of the present invention will be described with reference to FIG. 6.

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

Preferably, the information generating unit 610 collects the state information delivered from the second network device 300 in a setting cycle or in real time, for example, the number of connected terminal devices and the traffic state for each second network device 300. To manage. In addition, the information generation unit 610, in addition to the state information for each of the second network device 300, for example, various network parameters and network states on heterogeneous networks including subscriber preferences, subscriber types, subscription plans, types of service target applications, and the like. Network state information received from the terminal device 100 and the management device 400 according to the change is collected.

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

Preferably, the information generation unit 610 is for receiving a new network selection policy from the terminal device 100 as the change indicator value calculated for determining whether to move for changing the network selection policy exceeds a preset threshold. You will receive a policy request. In this regard, the terminal device 100 includes Cell information of a 3G network, that is, information of a first network device 200 and information on a plurality of second network devices 300 for operating a WiFi network at a corresponding location every setting cycle. Collecting and storing network information, and comparing the collected current network information with previous network information to calculate a change indicator value corresponding to a location movement state, and the calculated change indicator value may exceed a preset threshold. In this case, it is determined that sufficient location movement has been made to change the network selection policy and requests a new network selection policy.

In this case, when the policy request including location information is received from the terminal device 100, the information generating unit 610 includes a plurality of second network devices 300 corresponding to the current location of the terminal device 100. It is possible to generate the connection target network device information by selecting the best available second network device 300 selected based on the status information.

In addition, the information generating unit 610 receives a policy request including a list of the second network device 300 detected at the current location of the terminal device 100 from the terminal device 100, thereby selecting based on the status information. In other words, the optimal usable second network device 300 information may be generated, that is, the connection target network device information corresponding to a part of the list of the second network device 300 detected at the current location of the terminal device 100. have.

In addition, the information generating unit 610 is associated with the policy request including a list of the second network device 300 detected at the current location received from the terminal device 100, the detected network device based on the status information By setting the connection priority corresponding to the list, it is possible to generate connection target network device information.

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

Preferably, the policy provider 620 provides the terminal device 100 with a network selection policy including the generated connection target network device information, thereby causing the terminal device 100 to connect to the WiFi network at the current location. That is, among the plurality of second network devices 300 for operating the short range wireless network, the specific second network device 300 may be selected and connected.

On the other hand, the policy providing unit 620, in addition to the connection target network device information, for example, the terminal according to various network parameters and network status changes on heterogeneous networks including subscriber preferences, subscriber types, subscription plans, types of service target applications, etc. Based on the network state information received from the device 100 and the management device 400, the network to divide the transmission target data to correspond to the number of networks for the simultaneous transmission of data using a heterogeneous network environment, that is, 3G network and WiFi network The network selection policy including the relative utilization ratio between the two may be determined and provided to the terminal device 100 and the management device 400.

As described above, according to the heterogeneous network-based simultaneous data transmission service method according to the present invention, in the heterogeneous network environment, the location movement of the terminal device in the simultaneous transmission by dividing the transmission target data according to the network selection policy A network selection policy including a connectable network device information corresponding to the current location of the terminal device is calculated by calculating a change indicator value corresponding to a location movement state through monitoring the state, and when the calculated change indicator value exceeds a threshold value. By inducing the connection of the terminal device by providing the terminal, it is possible to implement the efficient and reliable heterogeneous network-based data simultaneous transmission service by efficiently controlling the access to the optimal network device at the current location of the terminal device, and further, data segmentation transmission. Data transfer 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. In the alternative, the processor and the storage medium may reside as discrete components in a 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 simultaneous data transmission service system and method thereof according to the present invention, in the heterogeneous network environment, monitoring the movement of the location of the terminal device in the simultaneous transmission by dividing the transmission target data according to the network selection policy Calculating a change indicator value corresponding to a location movement state through the controller, and if the calculated change indicator value exceeds a threshold, providing a network selection policy including accessible network device information corresponding to a current location of the terminal device; In terms of inducing the connection of the terminal device, as it is beyond the existing technology, it is not only the use of the related technology but also the possibility of marketing or sales of the applied device is not only sufficient but also practically clearly implemented. It is an invention that can be used.

100: terminal device
110: information acquisition unit 120: control unit
130:
200: first network device
300: second network device
400: management device
500: External device
600: policy management device
610: information generation unit 620: policy provision unit

Claims (12)

A change indicator value for a change over time of the network information is calculated on the basis of the collected network information over time, and if the calculated change indicator value exceeds a threshold, a network selection policy corresponding to the current position is obtained. Information acquisition unit to;
A control unit for selecting two or more pieces of partial data divided from the data according to the obtained network selection policy; And
And a communication unit for transmitting the selected partial data. The method of claim 1,
The information acquisition unit,
And the change indicator value is calculated based on at least one of whether the network device is changed and the number of changed devices in the detected list of network devices. The method of claim 2,
The information acquisition unit,
Based on at least one of a value given whether a network device of a first type has changed or a value given according to the number of changed devices in a list of network devices of a second type having a smaller connection area than the network device of the first type; And the change indicator value is calculated. The method of claim 3, wherein
The information acquisition unit,
At least a result value of giving a first weight to a value given whether the first type of network device has changed or a result value of giving a second weight to a value given according to the number of changed devices in the list of the second type of network device; And the change indicator value is calculated based on one. In response to a policy request received from a transmitting device when a change indicator value for a change over time of the network information calculated on the basis of collected network information over a time exceeds a threshold, the device corresponds to a current position of the transmitting device. An information generation unit for generating a network selection policy; And
And a policy provider for providing the generated network selection policy to the transmitting device to induce a selective access to a network device. The method of claim 5, wherein
The change indicator value is,
Based on at least one of a value given whether the first type of network device has changed or a value given according to the number of changed devices in a list of network devices of the second type having a smaller connection area than the first type of network device; Policy management apparatus, characterized in that calculated as. A change index value calculating step of calculating, by a transmitting device, a change index value for a change over time of the network information based on the network information according to the collected time;
An information determination step of determining, by the transmitter, whether or not the calculated change indicator value exceeds a threshold value;
An information requesting step, wherein the transmission device requests a policy management device for a network selection policy corresponding to a current location when the calculated change indicator value exceeds the threshold value;
An information providing step of generating, by the policy management apparatus, a network selection policy corresponding to the current location of the transmitting apparatus and providing the same to the transmitting apparatus; And
And transmitting the data by the transmitting apparatus selecting and transmitting two or more pieces of partial data divided from the data according to the network selection policy. A change index value calculating step of calculating, by a transmitting device, a change index value for a change over time of the network information based on the network information according to the collected time;
An information acquisition step of acquiring a network selection policy corresponding to the current location when the calculated change indicator value exceeds a threshold value;
A data selection step of selecting at least two partial data divided from data according to the obtained network selection policy; And
And a data transmission step of transmitting the selected partial data. The method of claim 8,
The change indicator value calculating step,
And calculating the change indicator value based on at least one of whether the network device is changed and the number of changed devices in the detected list of network devices. The method of claim 9,
The index value calculation step,
Based on at least one of a value given whether a network device of a first type has changed or a value given according to the number of changed devices in a list of network devices of a second type having a smaller connection area than the network device of the first type; And calculating the change indicator value. 11. The method of claim 10,
The index value calculation step,
A result of giving a first weight to a value given whether the first type of network device has changed or a result of giving a second weight to a value given according to the number of changed devices in the list of network devices of the second type And calculating the change indicator value based on at least one. A policy request receiving step of receiving a policy request when a change indicator value of a change in time of the network information calculated on the basis of network information over time exceeds a threshold value at a transmitter;
An information generation step of generating a network selection policy corresponding to the current location of the transmitting device according to the policy request; And
And a policy providing step of inducing a selective access to a network device by providing the generated network selection policy to the transmitting device.

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