KR20120139414A - System and method for simultaneously transmitting data in heterogeneous network - Google Patents

Abstract

PURPOSE: A heterogeneous network based data simultaneous transmission service system and method thereof are provided to effectively transfer data traffic of the whole network by updating a network selection policy based on network state information detected in a signal transmission path for transmitting part data. CONSTITUTION: A first and a second network apparatus transmit part data corresponding to two or more part data received through a signal transmission path to a reception apparatus. The first and the second network apparatus confirm the signal transmission path. The first and the second network apparatus detect network state information. The first and the second network apparatus provide the detected network state information for updating a network selection policy which is requested from a transmission apparatus. [Reference numerals] (100) Terminal device; (200) First network device; (300) Second network device; (400) Management device; (500) External device; (600) Policy management device; (AA) First network; (BB) Second network

Description

Heterogeneous network-based data transmission service system and method thereof {SYSTEM AND METHOD FOR SIMULTANEOUSLY TRANSMITTING DATA IN HETEROGENEOUS NETWORK}

The present invention relates to a data simultaneous transmission method, and more particularly, to determine the data transmission rate for each access network according to a network selection policy set in a heterogeneous network environment, and to transmit the data to be transmitted according to the determined transmission rate Heterogeneous network-based data transmission service system and method for updating network selection policy based on network state information detected on signal transmission path for partial data transmission in simultaneous transmission of divided partial data through heterogeneous networks And a network device and a method of operating the same.

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. Recently, Long Term Evolution (LTE) networks have been actively introduced.

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

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

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

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide two or more portions that a network device receives from the transmission device when the transmission device divides data into two or more partial data and transmits the data. Partial data corresponding to a part of the data is transmitted to a receiving device, and the receiving device combines the two or more pieces of partial data received to generate the data, and in this process, the network device is configured to transfer the partial data. Heterogeneous network-based data transmission service system and method for detecting network state information by checking a signal transmission path and providing the detected network state information for updating a network selection policy required for data segmentation in the transmitting apparatus To provide partial data As it based on the network status information that is detected on the call delivery route update the network selection policy is to effectively transition to the data traffic in the entire network, improve the data quality of service and ensuring network stability.

The present invention has been made in view of the above circumstances, and another object of the present invention is to receive partial data corresponding to a part of two or more pieces of partial data divided from one data from a transmitting device and transmit the received partial data to a receiving device. A network device for detecting network state information by checking a signal transmission path for transmitting the partial data, and transmitting the detected network state information for updating a network selection policy required when the data is divided by the transmitter; By providing the operation method, the network selection policy is updated based on the network state information detected on the signal transmission path for partial data transmission, thereby effectively transferring the data traffic of the entire network to improve data service quality and secure network stability. It is.

The heterogeneous network-based data transmission service system according to the first aspect of the present invention for achieving the above object comprises: a transmitting device for dividing and transmitting data into two or more pieces of partial data; A receiving device for generating the data by combining the two or more pieces of partial data which are divided and received; And forming a signal transmission path for data transmission and reception between the transmission device and the reception device, and transmitting partial data corresponding to a part of the two or more partial data received from the transmission device through the signal transmission path to the reception device. And a network device that checks the signal transmission path and detects network state information, and provides the detected network state information for updating a network selection policy required when the data is divided by the transmitter.

The network apparatus according to the second aspect of the present invention for achieving the above object, by forming a signal transmission path for transmitting and receiving data between the transmitting device and the receiving device, one data received from the transmitting device through the signal transmission path A transmission unit for transmitting the partial data corresponding to a part of the two or more partial data divided in the to the receiving device; A confirmation unit for detecting network state information by checking the signal transmission path; And a provision unit for transmitting the detected network state information for updating a network selection policy required for the data segmentation in the transmitter.

Preferably, the identification unit is characterized in that for detecting the network state information by checking the signal transmission path on the basis of one or more predetermined performance factor.

Preferably, the providing unit is characterized in that for transmitting the detected network state information in response to a predetermined event occurs.

Preferably, the providing unit transmits the detected network state information to the transmitting apparatus or the receiving apparatus, requesting an update of the network selection policy.

Preferably, the providing unit, by transmitting the detected network state information to a separate device for determining the network selection policy, characterized in that for requesting an update to the network selection policy.

Preferably, the providing unit transmits network status information including identification information of a specific transmission device to request an update of a network selection policy corresponding to the specific transmission device.

Preferably, the providing unit transmits network status information including identification information about one or more transmitting apparatuses currently connected to request updating of a network selection policy for the one or more transmitting apparatuses currently connected. do

The heterogeneous network-based data communication service method according to the third aspect of the present invention for achieving the above object comprises: a path forming step in which a network device forms a signal transmission path for transmitting and receiving data between a transmitting device and a receiving device; A division transmission step of transmitting data through the signal transmission path by dividing the data into two or more partial data by the transmission device; A forwarding step of the network apparatus transferring partial data corresponding to a portion of the two or more partial data received from the transmitting apparatus to a receiving apparatus; A data restoring step of generating the data by combining the two or more pieces of partial data received by the receiver; An information detecting step of detecting, by the network apparatus, the signal transmission path and detecting network state information; And an information providing step of providing the detected network state information in order to update a network selection policy required when the data is divided by the transmitting apparatus.

Preferably, the method further comprises a retransmission step of transmitting the data by dividing the data into two or more pieces of partial data based on an updated network selection policy.

According to a fourth aspect of the present invention, there is provided a method of operating a network device, comprising: a path forming step of forming a signal transmission path for transmitting and receiving data between a transmitting device and a receiving device; A transfer step of transferring partial data corresponding to a portion of two or more partial data divided from one data received from the transmitting apparatus through the signal transmission path to the receiving apparatus; Confirming the signal transmission path to detect network state information; And a transmitting step of transmitting, by the transmitting apparatus, the detected network state information for updating a network selection policy required for data division.

Preferably, the transmitting step, characterized in that for transmitting the network status information including the identification information of the specific transmission device to request an update to the network selection policy corresponding to the specific transmission device.

Preferably, the transmitting step, the network status information including the identification information of the at least one transmitting device that is currently connected, by requesting an update of the network selection policy for the at least one transmitting device currently connected. It is done.

According to a fifth aspect of the present invention, there is provided a computer-readable recording medium comprising: a path forming step of forming a signal transmission path for transmitting and receiving data between a transmitting device and a receiving device; A data providing step of providing partial data divided from one data received from the transmitting apparatus through the signal transmission path for transmission to a receiving apparatus; A state information detection step of detecting network state information on the signal transmission path; And executing a status information providing step of providing the detected network status information to update the network selection policy required at the time of data division in the transmitting apparatus.

Preferably, the state information detection step, characterized in that for detecting the network state information on the signal transmission path based on one or more predetermined performance factor.

Preferably, the state information providing step, characterized in that to provide the detected network state information in response to a predetermined event occurs.

Preferably, the status information providing step is characterized by requesting an update of the network selection policy to the transmitting apparatus or the receiving apparatus by providing the detected network status information.

Preferably, the state information providing step, characterized in that for requesting an update to the network selection policy to a separate device for providing the detected network state information to determine the network selection policy.

Preferably, the status information providing step, by providing the network status information including the identification information of the specific transmission device, characterized in that for requesting an update to the network selection policy corresponding to the specific transmission device.

Preferably, the status information providing step, by providing network status information including identification information for one or more transmitting devices that are currently connected, requesting an update of a network selection policy for the one or more transmitting devices that are currently connected. It is characterized by.

Accordingly, according to the heterogeneous network-based data transmission service system and method thereof according to the present invention, a data transmission rate for each access network is determined according to a network selection policy set in a heterogeneous network environment, and a transmission target is determined according to the determined transmission rate. In the simultaneous transmission of divided partial data by dividing the data through heterogeneous networks, data traffic of the entire network is effectively transferred by updating the network selection policy based on the network state information detected on the signal transmission path for partial data transmission. It can improve data service quality and secure network stability.

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 network device according to an embodiment of the present invention;
3 is a schematic flowchart illustrating a method for operating a heterogeneous network-based simultaneous data transmission service system according to an embodiment of the present invention.
4 is a schematic flowchart illustrating the operation of the network 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 system receives a partial data from a terminal device 100 and a terminal device 100 for splitting data into partial data and simultaneously transmitting the data into partial data in a heterogeneous network environment. Split data transferred from the first network device 200, the second network device 300 to receive the remaining partial data divided from the terminal device 100, the first network device 200 and the second network device 300 And a management device 400 for generating data by combining the 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.

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 is connected to the terminal device 100 through data transmission / For example, various services such as a portal service and a content providing service can be provided.

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

Meanwhile, the heterogeneous network may correspond to various access networks including, for example, WCDMA, CDMA, WiBro, WLAN (WiFi), and Long Term Evolution (LTE). However, in this embodiment, for convenience of description, a wireless packet service network A description will be given of the first network (hereinafter referred to as "3G network") and the second network (hereinafter referred to as "Wi-Fi network"), which refer to WCDMA.

Accordingly, the first network device 200 refers to a GGSN (Gateway GPRS Support Node) equipment for operating a 3G network, that is, a wireless packet service network, and the second network device 300 is a Wi-Fi network, It refers to an access point (AP) for operating a local area wireless network.

In addition, the terminal apparatus 100 and the management apparatus 400 may also be a transmitting apparatus or a receiving apparatus, depending on a service flow, that is, a subject transmitting data using a data simultaneous transmission service. 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.

First, in order to use the simultaneous data transmission service in a heterogeneous network environment, the access information acquisition procedure between the terminal device 100 and the management device 400 must be preceded.

In this regard, the terminal device 100 performs location registration for the 3G network and requests access information by accessing the first network device 200 to obtain access information of the management device 400 for accessing the 3G network. Done.

Accordingly, the first network device 200 receives the 3G network connection access information from the address allocator, for example, a DNS server, according to the access information request transmitted from the terminal device 100, and delivers the access information to the terminal device 100. .

In addition, the terminal device 100 further requests the first network device 200 for access information of the management device 400 for accessing the Wi-Fi network, and the first network device 200 receiving the received information is assigned to an address assignment device, for example. Then, the access information for accessing the Wi-Fi network from the DNS server is transmitted to the terminal device (100).

Next, when the above-described access information acquisition procedure for the management device 400 is completed, a service registration procedure between the terminal device 100 and the management device 400 should be performed.

In this regard, the terminal device 100 requests service registration by accessing the management device 400 through each network based on the obtained access information for 3G network access and access information for accessing a Wi-Fi network.

Accordingly, the management device 400 is additional information included in each service registration request received from the terminal device 100 via the 3G network and the Wi-Fi network, for example, subscriber identification information (eg, IMSI), access information, and service classification. By checking the information (Initial, Update, Remove), the service registration for the terminal device 100 is performed.

Next, after the service registration procedure between the terminal device 100 and the management device 400 is completed, a data simultaneous transmission procedure between the terminal device 100 and the management device 400 is performed. On the basis of the operating characteristics may be divided into the uplink and downlink procedures in which only the transmission between the terminal device 100 and the management device 400 is changed, in the following description, the terminal device 100 is the management device 400 Only the uplink procedure for transmitting data in the following description will be described.

In this regard, the terminal device 100 divides the transmission target data into partial 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 transmission of data using a heterogeneous network environment, that is, a 3G network and a Wi-Fi network, and the division process is transmitted from the policy management device 600. According to the network selection policy or the real-time network state detection is performed may be performed according to the traffic distribution rate for each network received from the management device 400.

In other words, the terminal device 100 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. 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.

Furthermore, the terminal device 100 transmits the first partial data and the second partial data to the management device 400 through the 3G network and the Wi-Fi network after inserting the additional information and the access information, respectively.

That is, the terminal device 100 inserts identifiers for the divided first partial data and the second partial data, thereby receiving the divided first partial data and the second partial data through the 3G network and the Wi-Fi network, respectively. 400 to identify that the partial data provided from the terminal device (100).

In addition, the terminal device 100 inserts first order information for confirming the order of the plurality of pieces of partial data included in the first piece of data into the first piece of data, and inserts first order information into the first piece of data. By additionally inserting second order information for confirming the order into the second partial data, the management apparatus 400 having received the first partial data and the second partial data causes the first order information and the second order information to be input. On the basis of this, the data can be restored by combining the partial data included in the first partial data and the partial data included in the second partial data.

In addition, the terminal apparatus 100 configures a header of the first partial data by inserting the 3G network connection access information allocated in the service registration process, so that the first partial data is managed through the first network apparatus 200. In order to be delivered to the 400, the data restored through the management device 400 may be further delivered to the external device 500.

At the same time, the terminal device 100 forms a header of the second partial data by inserting the access information for the Wi-Fi connection allocated in the service registration process, so that the second partial data is managed through the second network device 300. In order to be delivered to the 400, the data restored through the management device 400 may be finally delivered to the external device 500.

The management device 400 receives the first partial data and the second partial data transmitted from the terminal device 100.

That is, the management device 400 is a first part delivered via the first network device 200 located in the 3G network through a communication route formed according to the access information inserted in the first part data and the second part data. At the same time as receiving the data, the second partial data transmitted via the second network device 300 located in the Wi-Fi network is received.

In addition, the management device 400 restores the data by combining the received first partial data and the second partial data.

That is, the management device 400 identifies that the first partial data and the second partial data are partial data provided from the terminal device 100 by using the identifier included in the first partial data and the second partial data. At the same time, by confirming the order of each partial data using the first order information included in the first partial data and the second order information included in the second partial data, the first partial data is determined based on the confirmed order. And combine the respective partial data included in the second partial data, and combine the combined first partial data and the second partial data to restore the transmission target data transmitted from the terminal apparatus 100.

On the other hand, the management device 400 may register and manage the network selection policy provided from the policy management device 600, in addition to the network selection policy through network status detection, that is, 3G network to efficiently provide data simultaneous transmission service And changing the traffic distribution rate for each Wi-Fi network.

In relation to this, the first network device 200 and the second network device 300 respectively transmit partial data received from the terminal device 100 to the management device 400 to provide simultaneous services. It checks the status of 3G network and Wi-Fi network for signal transmission path for partial data transmission.

That is, the first network device 200 and the second network device 300 transmit the first partial data and the second partial data transmitted from the terminal device 100 through respective signal transmission paths, that is, the 3G network and the Wi-Fi network. It is delivered to the management device 400, the network status information is detected through monitoring of each signal transmission path, and the detected network status information for updating the network selection policy required for data partitioning management device 400 ) Or to the policy management device 600.

In this case, the first network device 200 and the second network device 300 is monitored for each signal transmission path on the basis of one or more performance factors that are designated at all times or at a set cycle, or at the request of the management device 400. By performing a predetermined event, for example, by passing the specific network state information that the occurrence of abnormality compared to the reference value specified by the performance factor, that is, the threshold value exceeded to the management device 400 or the policy management device 600, The network selection policy is requested to be updated based on the detected network state information.

Here, the network status information detected through the first network device 200 and the second network device 300 includes, for example, terminal device identification information (IMEI, MDN), number information including the MAC address of the Wi-Fi, and the terminal. The device may include model information of the device, OS name and version information, and software information including firmware version information.

Furthermore, the network status information detected through the first network device 200, that is, 3G network information includes, for example, time information (year / month / day / minute / second), latitude / collected through GPS, and Wi-Fi AP. Location information including the longitude information, an active set, that is, a synchronization code (PSC) for a serving node that provides a wireless access channel to the terminal device 100, and a signal code power of the active set (RSCP) ; Received Signal Channel Power), the signal-to-noise ratio (EcIo) of the active set, and the like.

In addition, the network information detected through the second network device 200, that is, the Wi-Fi network information may include, for example, time information (year / month / day / minute / second), GPS, Wi-Fi corresponding to an area where abnormal call processing occurs. Location information including latitude / longitude information collected through the AP, SSID (AP identification information), BSSID (MAC of AP), BSS CH (AP Channel ID), RSSI (AP signal strength), etc. Can be.

On the other hand, the first network device 200 and the second network device 300, when transmitting the network status information, provides network status information including identification information of a specific transmission device to update the network selection policy specified for the corresponding transmission device. Can be requested individually, and by transmitting network status information including identification information of a plurality of transmitters currently connected, it is possible to request a network selection policy update for all transmitters currently connected.

The management device 400 is based on the network status information received from the first network device 200 and the second network device 300 when using the data service between the terminal device 100 and the management device 400 and the 3G network and By changing the traffic distribution rate for each Wi-Fi network, the terminal device 100 provides an updated network selection policy including the changed traffic distribution rate to request data segmentation based on the updated network selection policy.

For example, the management device 400 adjusts the traffic distribution rate for each network included in the network selection policy based on the detected network state information, such as 10% of 3G network and 90% of Wi-Fi network, 90% of 3G network and 10% of Wi-Fi network, Renew the relative utilization between 3G and Wi-Fi networks to match the current state of the network, such as 50% for 3G networks and 50% for Wi-Fi networks, 0% for 3G networks and 100% for Wi-Fi networks, and 100% for 3G networks and 0% for Wi-Fi networks. I can establish it.

Hereinafter, a detailed configuration of a network device according to an embodiment of the present invention will be described with reference to FIG. 2. On the other hand, in the case of detecting network state information in the 3G network and the Wi-Fi network, it is preferable to be performed in a Wi-Fi network which is fluctuated in terms of network mobility and stability. In the following description, the second network apparatus 300 located in the Wi-Fi network is described. The configuration will be limited.

That is, the second network apparatus 300 receives the partial data from the terminal apparatus 100 and transmits the partial data to the management apparatus 400 and checks the signal transmission path for the partial data transmission, thereby confirming network status information. It includes a confirmation unit 320 for detecting the, and the providing unit 330 for transmitting the detected network state information for updating the network selection policy.

The transmission unit 310 receives the partial data divided from one data from the terminal device 100 and transmits the partial data to the management device 400.

That is, the transmission unit 310 is the second portion selected according to the transmission rate for data transmission from the terminal device 100 to the second network device 300 included in the partial data received through the Wi-Fi network, that is included in the network selection policy. The data is received from the terminal device 100 and transferred to the management device 400.

The identification unit 320 detects network state information by checking a signal transmission path for partial data transfer.

That is, the verification unit 320 is a physical layer for the signal transmission path, that is, the Wi-Fi network, for the transmission of the divided data on the basis of one or more predetermined performance factors at all times or at a predetermined period or at the request of the management device 400. The network state information is detected by checking the state over (Layer 1), the data link layer (Layer 3), and the network layer (Layer 3).

In this case, the detected network state information includes, for example, terminal device identification information (IMEI, MDN), number information including MAC address of Wi-Fi, model information of the terminal device, OS name and version information, and firmware version information (Firmware Version). In addition to basic information including software information, etc.), time information (year / month / day / minutes / seconds) and latitude / longitude collected through GPS and Wi-Fi APs corresponding to the area where abnormal call processing occurred Location information including information, SSID (AP identification information), BSSID (MAC of AP), BSS CH (AP Channel ID), RSSI (AP signal strength) and the like may be included.

The provider 330 transmits the detected network state information to update the network selection policy required for data division so that the updated network selection policy can be transmitted to the terminal device 100.

That is, the providing unit 330 generates specific network state information for which occurrence of a predetermined event occurs, for example, an abnormality with respect to a reference value specified by the performance factor, that is, a threshold value exceeded. By transmitting to, the network request for updating the network selection policy based on the detected network state information.

For example, the provider 330 transmits the detected network state information to the management device 400 or the policy management device 600 to request adjustment of the traffic distribution rate for each network included in the network selection policy, thereby providing 10% of 3G network and Wi-Fi network 90%, 3G network 90% and Wi-Fi network 10%, 3G network 50% and Wi-Fi network 50%, 3G network 0% and Wi-Fi network 100%, and 3G network 100% and Wi-Fi network 0% etc. Relative usage rates of 3G networks and Wi-Fi networks can be newly set to respond to the status.

Meanwhile, when the network state information is transmitted, the provider 330 may provide network state information including identification information of a specific transmitter to individually request a network selection policy update corresponding to the transmitter, and at the same time, By transmitting network status information including identification information of a plurality of transmitting apparatuses that are connected, it is possible to request a network selection policy update for all currently connected transmitters.

As described above, according to the heterogeneous network-based data transmission service system according to the present invention, the data transmission rate for each access network is determined according to a network selection policy set in a heterogeneous network environment, and according to the determined transmission rate. The data is transmitted by dividing the transmission target data and simultaneously transmitting the divided partial data through heterogeneous networks, and the receiving end combines the received partial data and restores the transmission target data. It is possible to increase the speed and to effectively transfer the data traffic of the entire network by updating the network selection policy required for data segmentation based on the network state information detected on the signaling path for partial data transmission. Improve the data quality of service and it is possible to ensure network stability.

Hereinafter, a heterogeneous network-based data transmission service method according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4. Here, the configurations shown in FIGS. 1 and 2 will be described with reference to corresponding reference numerals for convenience of explanation.

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. 3. On the other hand, after the service registration procedure between the terminal device 100 and the management device 400 is completed, a data simultaneous transmission procedure between the terminal device 100 and the management device 400 is performed, in the case of such a simultaneous transmission procedure, On the basis of the operating characteristics may be divided into the uplink and downlink procedures in which only the transmission between the terminal device 100 and the management device 400 is changed, in the following description, the terminal device 100 is the management device 400 Only the uplink procedure for transmitting data in the following description will be described.

First, in order to use the simultaneous data transmission service in a heterogeneous network environment, a procedure for obtaining access information between the terminal device 100 and the management device 400 is performed (S110).

Preferably, the terminal device 100 performs a location registration for the 3G network, and accesses the first network device 200 to request the access information to obtain access information of the 3G network connection management apparatus 400. Done.

Accordingly, the first network device 200 receives the 3G network connection access information from the address allocator, for example, a DNS server, according to the access information request transmitted from the terminal device 100, and delivers the access information to the terminal device 100. .

In addition, the terminal device 100 further requests the first network device 200 for access information of the management device 400 for accessing the Wi-Fi network, and the first network device 200 receiving the received information is assigned to an address assignment device, for example. Then, the access information for accessing the Wi-Fi network from the DNS server is transmitted to the terminal device (100).

Then, a service registration procedure between the terminal device 100 and the management device 400 is performed (S130).

Preferably, the terminal device 100 requests service registration by accessing the management device 400 through each network based on the obtained access information for 3G network access and access information for accessing the Wi-Fi network.

Accordingly, the management device 400 is additional information included in each service registration request received from the terminal device 100 via the 3G network and the Wi-Fi network, for example, subscriber identification information (eg, IMSI), access information, and service classification. By checking the information (Initial, Update, Remove), the service registration for the terminal device 100 is performed.

Then, the terminal device 100 divides the transmission target data into partial data in order to use the simultaneous transmission service (S150).

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 Wi-Fi network, and this division process is performed by the policy management device 600. According to the network selection policy delivered from the real-time network state detection or may be performed according to the changed network distribution rate for each network received from the management device 400.

In other words, the terminal device 100 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. 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.

Thereafter, the terminal device 100 transmits the first partial data and the second partial data to the management apparatus 400 through the 3G network and the Wi-Fi network after inserting the additional information and the access information (S170-S190). .

Preferably, the terminal apparatus 100 receives the divided first partial data and the second partial data through the 3G network and the Wi-Fi network by inserting identifiers for the divided first partial data and the second partial data, respectively. Allows the management device 400 to identify the partial data provided from the terminal device 100.

In addition, the terminal device 100 inserts first order information for confirming the order of the plurality of pieces of partial data included in the first piece of data into the first piece of data, and inserts first order information into the first piece of data. By additionally inserting second order information for confirming the order into the second partial data, the management apparatus 400 having received the first partial data and the second partial data causes the first order information and the second order information to be input. On the basis of this, the data can be restored by combining the partial data included in the first partial data and the partial data included in the second partial data.

In addition, the terminal apparatus 100 configures a header of the first partial data by inserting the 3G network connection access information allocated in the service registration process, so that the first partial data is managed through the first network apparatus 200. In order to be delivered to the 400, the data restored through the management device 400 may be further delivered to the external device 500.

At the same time, the terminal device 100 forms a header of the second partial data by inserting the access information for the Wi-Fi connection allocated in the service registration process, so that the second partial data is managed through the second network device 300. In order to be delivered to the 400, the data restored through the management device 400 may be finally delivered to the external device 500.

Then, the management device 400 receives the first partial data and the second partial data transmitted from the terminal device 100 (S210).

Preferably, the management device 400 is transmitted through the first network device 200 located in the 3G network through a communication route formed according to the connection information inserted in the first partial data and the second partial data. At the same time as receiving the partial data, the second partial data transmitted via the second network device 300 located in the Wi-Fi network is received.

Next, the management device 400 restores the data by combining the received first partial data and the second partial data (S230).

Preferably, the management device 400 is a partial data provided from the terminal device 100 by using the first partial data and the identifier included in the second partial data. Identifying the order of each partial data by using the first order information included in the first partial data and the second order information included in the second partial data at the same time, thereby confirming the first order based on the confirmed order. Each of the partial data included in the partial data and the second partial data is combined, and the combined first partial data and the second partial data are combined to restore the transmission target data transmitted from the terminal device 100.

Furthermore, the management device 400 transmits the restored data to the external device 500 (S250).

Preferably, the management device 400 confirms the connection information of the external device 500 inserted into the first partial data and the second partial data, thereby transferring the restored transmission target data to the external device 500, In this case, in the case of the external device 500, the management device 400 performs a network address translation (NAT) function as the external device 500 is inserted into the first partial data and the second partial data. The access information is converted to its own address information to access the external device 500.

In addition, the first network device 200 and the second network device 300 is to pass the partial data received from the terminal device 100 to the management device 400, respectively, to provide a simultaneous service, and at the same time the partial data It checks the state of the signal transmission path for transmission, that is, the state of the 3G network and the Wi-Fi network and requests the renewal of the network selection policy (S270-S310).

Preferably, the first network device 200 and the second network device 300 respectively transmit the first partial data and the second partial data transmitted from the terminal device 100, that is, the 3G network and the Wi-Fi network. It is delivered to the management device 400 through the monitoring device, and detects network status information through monitoring of each signal transmission path, and manages the detected network status information to update the network selection policy required for data partitioning 400 or to the policy management device 600.

In this case, the first network device 200 and the second network device 300 is monitored for each signal transmission path on the basis of one or more performance factors that are designated at all times or at a set cycle, or at the request of the management device 400. By performing a predetermined event, for example, by passing the specific network state information that the occurrence of abnormality compared to the reference value specified by the performance factor, that is, the threshold value exceeded to the management device 400 or the policy management device 600, The network selection policy is requested to be updated based on the detected network state information.

Here, the network status information detected through the first network device 200 and the second network device 300 includes, for example, terminal device identification information (IMEI, MDN), number information including the MAC address of the Wi-Fi, and the terminal. The device may include model information of the device, OS name and version information, and software information including firmware version information.

Furthermore, the network status information detected through the first network device 200, that is, 3G network information includes, for example, time information (year / month / day / minute / second), latitude / collected through GPS, and Wi-Fi AP. Location information including the longitude information, an active set, that is, a synchronization code (PSC) for a serving node that provides a wireless access channel to the terminal device 100, and a signal code power of the active set (RSCP) ; Received Signal Channel Power), the signal-to-noise ratio (EcIo) of the active set, and the like.

In addition, the network information detected through the second network device 200, that is, the Wi-Fi network information may include, for example, time information (year / month / day / minute / second), GPS, Wi-Fi corresponding to an area where abnormal call processing occurs. Location information including latitude / longitude information collected through the AP, SSID (AP identification information), BSSID (MAC of AP), BSS CH (AP Channel ID), RSSI (AP signal strength), etc. Can be.

On the other hand, the first network device 200 and the second network device 300, when transmitting the network status information, provides network status information including identification information of a specific transmission device to update the network selection policy specified for the corresponding transmission device. Can be requested individually, and by transmitting network status information including identification information of a plurality of transmitters currently connected, it is possible to request a network selection policy update for all transmitters currently connected.

Then, the management device 400 based on the network state information received from the first network device 200 and the second network device 300 when using the data service simultaneously between the terminal device 100 and the management device 400. By changing the traffic distribution rate for each 3G network and Wi-Fi network, the terminal device 100 provides an updated network selection policy including the changed traffic distribution rate, thereby requesting data segmentation based on the updated network selection policy. (S330-S350).

Preferably, the management device 400 adjusts the traffic distribution rate for each network included in the network selection policy based on the detected network state information, such as 10% 3G network and 90% Wi-Fi network, 90% 3G network and Wi-Fi. Relative between the 3G network and the Wi-Fi network to respond to the current state of the network, such as 10% network, 50% 3G network and 50% Wi-Fi network, 100% 3G network and 100% Wi-Fi network, and 100% 3G network and 0% Wi-Fi network. New usage rates can be set.

Hereinafter, a method of operating a network device according to an embodiment of the present invention will be described with reference to FIG. 4. On the other hand, in the case of detecting network state information in the 3G network and the Wi-Fi network, it is preferable to be performed in a Wi-Fi network which is highly variable in terms of network mobility and stability. In the following description, the second network apparatus 300 located in the Wi-Fi network The operation will be limited and described.

First, the partial data divided from one data is received from the terminal device 100 and transferred to the management device 400 (S410).

Preferably, the transmission unit 310 is selected according to the transmission rate for data transmission from the terminal device 100 to the second network device 300 included in the partial data received through the Wi-Fi network, that is, the network selection policy. The two-part data is received from the terminal device 100 and transferred to the management device 400.

Then, the signal transmission path for partial data transmission is checked to detect network state information (S430-S470).

Preferably, the identification unit 320 is a signal transmission path for transmitting the divided data on the basis of one or more predetermined performance factors according to a constant or setting cycle, or a request of the management device 400, that is, for a Wi-Fi network. The network state information is detected by checking the state across the physical layer (Layer 1), the data link layer (Layer 3), and the network layer (Layer 3).

In this case, the detected network state information includes, for example, terminal device identification information (IMEI, MDN), number information including MAC address of Wi-Fi, model information of the terminal device, OS name and version information, and firmware version information (Firmware Version). In addition to basic information including software information, etc.), time information (year / month / day / minutes / seconds) and latitude / longitude collected through GPS and Wi-Fi APs corresponding to the area where abnormal call processing occurred Location information including information, SSID (AP identification information), BSSID (MAC of AP), BSS CH (AP Channel ID), RSSI (AP signal strength) and the like may be included.

Thereafter, the detected network state information is transmitted to update the network selection policy required for data partitioning so that the updated network selection policy can be transmitted to the terminal device 100 (S490).

Preferably, the providing unit 330 is configured to generate a predetermined event, for example, the specific network state information that the occurrence of abnormality compared to the reference value specified by the performance factor, that is, the threshold value is confirmed by the management device 400 or the policy management device ( By transmitting to 600, it is requested to update the network selection policy based on the detected network state information.

In other words, the provider 330 transmits the detected network state information to the management device 400 or the policy management device 600 to request adjustment of the traffic distribution rate for each network included in the network selection policy, for example, a 3G network. 10% and Wifi network 90%, 3G network 90% and Wifi network 10%, 3G network 50% and Wifi network 50%, 3G network 0% and Wifi network 100%, and 3G network 100% and Wifi network 0% etc. Relative usage rates for 3G and Wi-Fi networks can be set to meet the current state of the network.

Meanwhile, when the network state information is transmitted, the provider 330 may provide network state information including identification information of a specific transmitter to individually request a network selection policy update corresponding to the transmitter, and at the same time, By transmitting network status information including identification information of a plurality of transmitting apparatuses that are connected, it is possible to request a network selection policy update for all currently connected transmitters.

As described above, according to the heterogeneous network-based data transmission service method according to the present invention, the data transmission rate for each access network is determined according to a network selection policy set in a heterogeneous network environment, and according to the determined transmission rate. The data is transmitted by dividing the transmission target data and simultaneously transmitting the divided partial data through heterogeneous networks, and the receiving end combines the received partial data and restores the transmission target data. It can increase the speed and effectively transfer the data traffic of the entire network by updating the network selection policy required for data segmentation based on the network state information detected on the signal transmission path for partial data transmission. It can improve data service quality and secure network stability.

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

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

According to the heterogeneous network-based data simultaneous transmission service system and method thereof according to the present invention, in the simultaneous transmission through a heterogeneous network, the network selection policy is updated based on network state information detected on a signal transmission path for partial data transmission. In this regard, the invention is an industrially available invention because the possibility of marketing or sales of the applied device is not only sufficient for the use of the related technology, but also practically evident as it exceeds the limitation of the existing technology.

100: terminal device
200: first network device
300: second network device
310: delivery unit 320: confirmation unit
330: providing part
400: management device
500: External device
600: policy management device

Claims (18)

A transmitter for dividing data into two or more partial data and transmitting the divided data;
A receiving device for generating the data by combining the two or more pieces of partial data which are divided and received; And
Forming a signal transmission path for data transmission and reception between the transmitter and the receiver, and transmitting partial data corresponding to a part of the two or more partial data received from the transmitter through the signal transmission path to the receiver; Heterogeneous network, characterized in that for detecting the network state information by checking the signal transmission path, and providing the detected network state information for updating the network selection policy required for the data segmentation in the transmitting device Based data transmission service system. A signal transmission path for transmitting and receiving data between a transmitter and a receiver is formed, and the receiver receives partial data corresponding to a part of at least two partial data divided from one data received from the transmitter through the signal transmission path. Transfer unit for transmitting to;
A confirmation unit for detecting network state information by checking the signal transmission path; And
And a providing unit for transmitting the detected network state information for updating a network selection policy required for the data division in the transmitting device. The method of claim 2,
The verification unit,
And detecting the network state information by checking the signal transmission path based on one or more specified performance factors. The method of claim 2,
Wherein the providing unit comprises:
And transmitting the detected network state information in response to a predetermined event occurrence. The method of claim 2,
Wherein the providing unit comprises:
And transmitting the detected network state information to the transmitting apparatus or the receiving apparatus to request an update of the network selection policy. The method of claim 2,
Wherein the providing unit comprises:
And updating the network selection policy by transmitting the detected network state information to a separate device for determining the network selection policy. The method of claim 2,
Wherein the providing unit comprises:
And requesting an update on a network selection policy corresponding to the specific transmission device by transmitting network state information including identification information of the specific transmission device. The method of claim 2,
Wherein the providing unit comprises:
And transmitting network status information including identification information of at least one transmitting apparatus currently connected, so as to request an update of a network selection policy for the at least one transmitting apparatus currently connected. A path forming step of forming a signal transmission path for transmitting and receiving data between the transmitter and the receiver;
A transfer step of transferring partial data corresponding to a portion of two or more partial data divided from one data received from the transmitting apparatus through the signal transmission path to the receiving apparatus;
Confirming the signal transmission path to detect network state information; And
And a transmitting step of transmitting, by the transmitting apparatus, the detected network state information for updating a network selection policy required for data division. The method of claim 9,
Wherein,
Transmitting network status information including identification information of a specific transmission device and requesting an update of a network selection policy corresponding to the specific transmission device. The method of claim 9,
Wherein,
Transmitting network status information including identification information of at least one transmitting apparatus currently connected, and requesting an update of a network selection policy for the at least one transmitting apparatus currently connected. A path forming step of forming a signal transmission path for transmitting and receiving data between the transmitter and the receiver;
A data providing step of providing partial data divided from one data received from the transmitting apparatus through the signal transmission path for transmission to a receiving apparatus;
A state information detection step of detecting network state information on the signal transmission path; And
And executing a status information providing step of providing the detected network status information for updating a network selection policy required when the data is divided by the transmitting apparatus. 13. The method of claim 12,
The state information detection step,
And detecting the network state information on the signal transmission path based on one or more predetermined performance factors. 13. The method of claim 12,
The state information providing step,
And providing the detected network state information in response to a predetermined event occurrence. 13. The method of claim 12,
The state information providing step,
And providing the detected network state information to request the update of the network selection policy from the transmitting apparatus or the receiving apparatus. 13. The method of claim 12,
The state information providing step,
And requesting an update of the network selection policy from a separate device that provides the detected network status information to determine the network selection policy. 13. The method of claim 12,
The state information providing step,
And requesting an update on a network selection policy corresponding to the specific transmission device by providing network status information including identification information of the specific transmission device. 13. The method of claim 12,
The state information providing step,
And providing network status information including identification information of one or more transmitting devices that are currently connected, requesting an update of a network selection policy for the one or more transmitting devices that are currently connected.

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