KR101207034B1 - Method for simultaneously transmitting data in heterogeneous network - Google Patents
Method for simultaneously transmitting data in heterogeneous network Download PDFInfo
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- KR101207034B1 KR101207034B1 KR1020110084736A KR20110084736A KR101207034B1 KR 101207034 B1 KR101207034 B1 KR 101207034B1 KR 1020110084736 A KR1020110084736 A KR 1020110084736A KR 20110084736 A KR20110084736 A KR 20110084736A KR 101207034 B1 KR101207034 B1 KR 101207034B1
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- H—ELECTRICITY
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/18—Service support devices; Network management devices
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Abstract
Description
The present invention relates to a heterogeneous network-based data simultaneous transmission service method, and more particularly, in an environment for providing a simultaneous transmission service for splitting data for data transmission and reception and transmitting / receiving using a plurality of heterogeneous networks. Heterogeneous network-based data simultaneously varying the data transmission rate for each access network based on the data transmission rate of each network measured during different measurement intervals by reflecting the differences in characteristics (eg, throughput, delay, loss, etc.) for each network. The present invention relates to a transmission service method, an operation method of a management device and a management device, and an operation method of a reception device and a reception device.
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, in a heterogeneous network environment in which several networks are mixed, a new service scheme for actively selecting an access network of a terminal device according to a network state and efficient data transmission using the selected network is required.
Meanwhile, in the simultaneous transmission service, partial data divided from one data are simultaneously transmitted using a plurality of heterogeneous networks (eg, 3G and WiFi), and according to the situation of heterogeneous networks (eg, 3G and WiFi) used. It is important to determine the data transmission rate optimally for which transmission rate the partial data is transmitted to each network.
Therefore, for simultaneous transmission service, it is necessary to measure the situation (eg data rate) of each network by using Heartbeat (a kind of keepalive message), Sequence Number and ACK combination, and then adjust the data transmission rate for each network based on this. It will be possible. However, since network quality (throughput, delay, loss, etc.) between networks is different from each other, it is expected that there will be a limit in obtaining optimal measurement results when network conditions are measured using the same time.
The present invention has been made in view of the above circumstances, and an object of the present invention is to set a data transmission rate measurement interval for each of two or more networks by a management device and to transmit data based on a data transmission rate for each access network. Selects the partial data divided by each access network, inserts identification information for confirming the data rate into at least one partial data corresponding to the set data rate measurement interval among the selected partial data for each access network, and selects the selected partial data Is transmitted to the receiving apparatus through two or more networks, the receiving apparatus measures the data transmission rate for each access network during the data transmission rate measurement section in which the identification information for checking the data transmission rate is recognized based on the partial data received for each access network. , Therefore The management device provides a heterogeneous network-based simultaneous data transmission service method for varyingly setting the data transmission rate for each access network based on the data transmission rate for each access network measured by the receiving device, and varies according to characteristics of each network. The data transmission rate for each access network is variably set based on the data transmission rate of each network measured during the data transmission rate measurement interval for each network.
The present invention was created in view of the above circumstances, and another object of the present invention is to set a data transmission rate measurement interval for each of two or more networks, and divide the data into transmission target data based on a preset data transmission rate for each access network. Select the partial data for each access network, insert identification information for confirming the data rate into at least one partial data corresponding to the set data rate measurement interval among the selected partial data for each access network, and select the selected partial data. The management apparatus which transmits through the above network and variably sets the data transmission rate for each preset access network based on the data transmission rate for each access network measured according to the recognition of the identification information inserted into the partial data transmitted for each access network. And management The present invention provides a method of operating a device, and variably sets a data transmission rate for each access network based on the data transmission rate of each network measured during a data transmission rate measurement interval for each network that is differently set according to the characteristics of each network.
The present invention has been made in view of the above circumstances, and another object to be achieved in the present invention is to receive partial data divided from data to be transmitted based on a preset data transmission rate for each access network through two or more networks, Based on the partial data received for each access network, the data rate for each access network is measured during the data rate measurement interval in which the identification information for checking the data rate is recognized, and the preset access is based on the measured data rate for each access network. Provides a receiving device and a method of operating the receiving device to variably set the data transmission rate for each network, and access network based on the data transmission rate of each network measured during the data transmission rate measurement interval for each network that is differently set according to the characteristics of each network. star The variable data transfer rate is set.
The management apparatus according to the first aspect of the present invention for achieving the above object comprises: a measurement section setting unit for setting a data rate measurement section for each of two or more networks; The partial data divided from the transmission target data is selected for each access network based on a preset data transmission rate for each access network, and data is included in at least one partial data corresponding to the set data rate measurement interval among the selected partial data for each access network. A control unit which inserts and provides identification information for confirming a transmission rate; And a communication unit configured to transmit the selected partial data through two or more networks, wherein the controller is based on a data transmission rate for each access network measured according to whether the identification information inserted in the partial data transmitted for each access network is recognized. The data transmission rate for each preset access network is variably set.
Preferably, the measurement interval setting unit, for each of the two or more networks, may set the data rate measurement interval including at least one of the data rate measurement time and the number of data rate measurement packets according to the characteristics of the network.
Preferably, the control unit is measured for each of the access network based on the size of the received partial data and the time required to receive the partial data by the device for receiving the partial data into which the identification information is inserted; The data transmission rate for each access network may be variably set based on the data transmission rate for each access network.
According to a second aspect of the present invention, there is provided a receiving apparatus, including: a communication unit configured to receive, through at least two networks, partial data divided from data to be transmitted based on a preset data transmission rate for each access network; And measuring a data rate for each access network during a data rate measurement interval in which identification information for identifying a data rate is recognized based on the partial data received for each access network, and measuring the data rate for each access network based on the measured data rate for each access network. And a control unit configured to variably set a data transmission rate for each access network.
Preferably, when the reception of the partial data into which the identification information is inserted among the received partial data is recognized for each of the access networks, the controller recognizes that the start of the data transmission rate measurement section is performed and the portion where the identification information is not inserted. When the reception of the data is recognized, it can be recognized as the end of the data rate measurement section.
Preferably, the control unit, for each of the access network, based on the size of the partial data into which the identification information received during the data rate measurement interval is inserted and the time required to receive the partial data data transmission rate for each of the access network Can be measured.
Preferably, the controller may provide the measured data transmission rate for each access network to a management device that transmits the partial data divided from the transmission target data based on the preset data transmission rate for each connection network.
The heterogeneous network-based simultaneous data transmission service method according to the third aspect of the present invention for achieving the above object comprises the steps of: setting a data rate measurement interval for each of two or more networks by the management apparatus; Selecting, by the management apparatus, partial data divided from transmission target data for each access network based on a preset data transmission rate for each access network; The management apparatus inserts identification information for checking the data rate into at least one partial data corresponding to the set data rate measurement interval among the partial data selected for each of the access networks, and receives the selected partial data through two or more networks. Transmitting to; Measuring, by the receiving apparatus, a data transmission rate for each access network during a data transmission rate measurement section in which identification information for confirming a data transmission rate is recognized based on the partial data received for each access network; And setting, by the management apparatus, a variable data transmission rate for each preset access network based on the data transmission rate for each access network measured by the receiving apparatus.
A method of operating a management device according to a fourth aspect of the present invention for achieving the above object comprises: setting a measurement interval measuring interval for each of two or more networks; A partial data selection step of selecting partial data divided from transmission target data for each access network based on a preset data transmission rate for each access network; A measurement section applying step of inserting identification information for confirming a data transmission rate into at least one partial data corresponding to the set data transmission rate measurement section among the partial data selected for each access network; A partial data transmission step of transmitting the selected partial data through two or more networks; And a variable setting step of variably setting the preset data transmission rate for each access network based on the data transmission rate for each access network measured according to whether the identification information inserted into the partial data transmitted for each access network is recognized.
Preferably, in the measuring section setting step, for each of the two or more networks, the data rate measuring section including at least one of a data rate measuring time and a data rate measuring packet number according to characteristics of a network may be set.
Preferably, the variable setting step is measured based on the size of the received partial data and the time required for receiving the partial data by the device for receiving the partial data into which the identification information is inserted for each of the access networks. The data transmission rate for each preset access network may be variably set based on the data transmission rate for each access network.
A method of operating a receiver according to a fifth aspect of the present invention for achieving the above object, the partial data for receiving the partial data divided from the data to be transmitted through the two or more networks based on the data transmission rate for each preset access network Receiving step; A data rate measuring step of measuring a data rate for each access network during a data rate measurement section in which identification information for identifying a data rate is recognized based on the partial data received for each access network; And a variable setting step of varying a predetermined data transmission rate for each access network based on the measured data transmission rate for each access network.
Preferably, in the data rate measurement step, when the reception of the partial data into which the identification information is inserted among the received partial data is recognized for each of the access networks, the data transmission rate is recognized as the beginning of the data transmission rate measurement interval, and the identification information is inserted. If the reception of the partial data is not received, it can be recognized as the end of the data rate measurement section.
Preferably, the data transmission rate measuring step may be performed based on the size of the partial data into which the identification information received during the data transmission rate measurement interval is inserted and the time required for the reception of the partial data, for each of the access networks. You can measure the data rate per star.
Preferably, the variable setting step may provide the measured data transmission rate for each access network to a management device that has transmitted the partial data divided from the transmission target data based on the preset data transmission rate for each connection network. have.
Accordingly, according to the heterogeneous network-based simultaneous data transmission service method of the present invention, in the heterogeneous network environment, the data to be transmitted is divided and transmitted simultaneously according to the data transmission rate for each access network. , data transmission rate for each access network can be measured based on the data rate measurement interval set differently for each network according to the network, delay, loss, and the like.
Therefore, according to the heterogeneous network-based simultaneous data transmission service method of the present invention, considering the characteristics of each network, considering the optimal traffic conditions for each access network in real time, and by transferring the data traffic of the entire network to improve the data service quality and network Stability can be secured.
1 is a block diagram showing a heterogeneous network-based simultaneous data transmission service system according to a preferred embodiment of the present invention.
2 is a block diagram showing the configuration of a management apparatus according to a preferred embodiment of the present invention.
3 is a block diagram showing the configuration of a receiving apparatus according to a preferred embodiment of the present invention.
4 is a flowchart illustrating a flow of a heterogeneous network-based data transmission service method according to a preferred embodiment of the present invention.
5 is an operation flowchart showing a method of operating an apparatus according to a preferred embodiment of the present invention.
6 is a flowchart illustrating a method of operating a receiver according to an exemplary embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
1 is a diagram illustrating a heterogeneous network-based simultaneous data transmission service system according to a preferred embodiment of the present invention.
As shown in FIG. 1, a heterogeneous network-based data simultaneous transmission service system according to the present invention includes a
Here, two or more networks, that is, heterogeneous networks, may include WCDMA, CDMA, WiBro, WLAN (WiFi), Long Term Evolution (LTE), and the like.
In the present invention, for convenience of description, a first network (hereinafter, referred to as a "3G network"), which refers to a wireless packet service network (WCDMA) of two or more networks, and a second wireless network (WiFi) Embodiments will be described with reference to two networks (hereinafter referred to as "WiFi networks"). Accordingly, the
In addition, the heterogeneous network-based data concurrent transmission service system according to the present invention includes an external device 500 that receives data combined / restored according to a simultaneous transmission service from the
Here, the external device 500 refers to a server device that performs data transmission and reception with the receiving
In addition, the policy management apparatus (not shown) includes, for example, a
Accordingly, the heterogeneous network-based data transmission service according to the present invention divides one data between the
Therefore, the simultaneous transmission service provided by the present invention transmits the partial data divided from one data simultaneously using a plurality of heterogeneous networks (eg, 3G and WiFi), and thus uses heterogeneous networks (eg, 3G and WiFi). It is important to determine the data transmission rate optimally based on the transmission rate of partial data to each network according to the situation of).
Therefore, for simultaneous transmission service, it is necessary to measure the situation (eg data rate) of each network by using Heartbeat (a kind of keepalive message), Sequence Number and ACK combination, and then adjust the data transmission rate for each network based on this. It will be possible. However, since network quality (throughput, delay, loss, etc.) between networks is different from each other, it is expected that there will be a limit in obtaining optimal measurement results when network conditions are measured using the same time.
Accordingly, in the present invention, the
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As described above, according to the heterogeneous network-based simultaneous data transmission service system according to the present invention, in the heterogeneous network environment, in the simultaneous transmission by dividing the transmission target data according to the data transmission rate for each access network, Depending on the characteristics (eg, throughput, delay, loss, etc.), the data transmission rate for each access network may be measured based on the data rate measurement interval set for each network, and the data transmission rate for each access network may be variably set.
Therefore, according to the heterogeneous network-based simultaneous data transmission service system according to the present invention, reflecting the different characteristics for each network, considering the optimal traffic conditions for each access network in real time, and improve the data service quality by transferring the data traffic of the entire network Network stability can be secured.
Hereinafter, a heterogeneous network-based data transmission method according to a preferred embodiment of the present invention will be described with reference to FIGS. 4 to 6. Here, for convenience of description, the components shown in FIGS. 1 to 3 will be described with reference to corresponding reference numerals.
First, a heterogeneous network-based simultaneous data transmission method according to a preferred embodiment of the present invention will be described with reference to FIG. 4.
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Hereinafter, an operation method of the management device according to the present invention will be described in detail with reference to FIG. 5.
In the operation method of the management apparatus according to the present invention, a data transmission rate measurement interval is set for each of two or more networks (S100).
More specifically, the operation method of the management device according to the present invention, for each of two or more networks (eg 3G, WiBro, WiFi, LTE, etc.), measuring the data rate according to the characteristics of the throughput, delay, loss, etc. of the network A data rate measurement interval including at least one of time and data rate measurement packet count may be set.
That is, in the operating method of the management apparatus according to the present invention, the data transmission rate measurement period for performing the data transmission rate measurement according to the characteristics of each network may be differently determined for each network to set / hold the data transmission rate measurement interval for each network. .
Alternatively, in the operation method of the management apparatus according to the present invention, the number of data rate measurement packets to be used to perform data rate measurement according to the characteristics of each network is determined differently for each network to set / hold the data rate measurement interval for each network. can do.
The operation method of the management apparatus according to the present invention selects the partial data divided from the transmission target data for each access network based on a preset data transmission rate for each access network.
That is, in the operation method of the management device according to the present invention, when receiving the transmission target data to be transmitted from the external device 500 to the receiving device (100) (S105), it is divided into partial data and connected network (for example: 3G and WiFi) checks the data transmission rate for each data, that is, the first transmission rate for data transmission to the
The operating method of the management apparatus according to the present invention selects the first partial data to be transmitted to the
In addition, the operation method of the management device according to the present invention, the identification information for confirming the data rate to the at least one partial data corresponding to the set data rate measurement interval of the selected partial data for each access network (eg 3G and WiFi) Insert (S130).
That is, the operation method of the management apparatus according to the present invention, at least a portion corresponding to the data rate measurement interval set in correspondence with the 3G network of the partial data selected for each access network, that is, a plurality of first partial data selected for transmission to the 3G network. Identification information indicating that the message is a message for checking a data rate for each access network may be inserted into a packet attribute information (Message Type) field included in a header of one piece of data.
In other words, the operating method of the management apparatus according to the present invention, identification information to at least one partial data to be provided for transmission to the 3G network for a predetermined data rate measurement time (for example, x seconds) corresponding to the 3G network. The identification information may be inserted into x pieces of partial data to be provided for transmission to the 3G network according to a preset number of data rate measurement packets (eg, x) corresponding to the 3G network.
In addition, the operation method of the management apparatus according to the present invention corresponds to a partial data selected for each access network, that is, a plurality of second partial data selected for transmission to a WiFi network and a preset data rate measurement interval corresponding to the WiFi network. The identification information indicating that the message is a message for confirming a data transmission rate for each access network may be inserted into a packet attribute information field in the header of at least one partial data.
In other words, the operating method of the management device according to the present invention, the identification information to the at least one partial data to be provided for transmission to the WiFi network for a preset data rate measurement time (for example y seconds) corresponding to the WiFi network. The identification information may be inserted into y pieces of partial data to be provided for transmission to the WiFi network according to a preset data rate measurement packet number (eg, y) corresponding to the WiFi network.
At this time, the operation method of the management device according to the present invention, when a measurement event occurs, such as a preset data rate measurement cycle or a data rate measurement input generated by the operator, among the partial data selected for each access network as described above Identification information for checking the data rate may be inserted into at least one partial data corresponding to the set data rate measurement interval.
In the operation method of the management apparatus according to the present invention, the partial data selected for each access network is transmitted using the corresponding network (S140).
That is, in the operating method of the management apparatus according to the present invention, a plurality of first partial data selected for the 3G network is transmitted to the
Furthermore, in the operation method of the management apparatus according to the present invention, the data transmission rate for each access network corresponding to the partial data transmission in which the identification information is inserted is checked (S150).
That is, in the operating method of the management apparatus according to the present invention, the data transmission rate for each access network is received from the
More specifically, the operation method of the management device according to the present invention, the size of the received partial data and the partial data by the receiving
Thus, in the operation method of the management apparatus according to the present invention, the data transmission rate for each preset access network is variably set based on the identified data transmission rate for each access network (S160).
That is, the operating method of the management device according to the present invention, based on the confirmed data transmission rate for each access network to recognize the data transmission efficiency for each of the 3G network and WiFi network, the data transmission efficiency of the 3G network or WiFi network is good In other words, the data transmission rate for each access network is set so that more partial data can be transmitted through the network. In other words, the data transmission rate between the 3G network and the WiFi network is variably set.
Subsequently, the operating method of the management apparatus according to the present invention will select the partial data divided from the transmission target data for each access network based on the data transmission rate for each access network that is variably set.
Hereinafter, a method of operating the receiver according to the present invention will be described in more detail with reference to FIG. 6.
In the operation method of the reception device according to the present invention, the partial data transmitted from the
That is, in the operating method of the receiving apparatus according to the present invention, the
In the operation method of the reception device according to the present invention, the partial data received through the
That is, in the operation method of the reception device according to the present invention, by generating data based on the virtual network connection information included in the received first partial data and the second partial data, the transmission target data to be transmitted from the
At this time, the operation method of the receiving apparatus according to the present invention, based on the partial data received for each access network (for example, 3G and WiFi) to determine the data transmission rate for each access network during the data rate measurement interval in which the identification information for identifying the data transmission rate is recognized. Measure (S210 ~ S250).
In more detail, in the method of operating the reception device according to the present invention, if the reception of the partial data into which the identification information is inserted among the received partial data for each access network is recognized as the start of the data rate measurement section, When the reception of the partial data without the identification information is recognized, it can be recognized as the end of the data rate measurement section.
That is, in the operation method of the receiving apparatus according to the present invention, when the reception of the partial data into which the identification information is inserted is recognized for each access network, the method recognizes the beginning of the data transmission rate measurement section of the corresponding network, and thereafter, the identification information is not inserted. If the reception of the partial data is recognized, it can be recognized as the end of the data rate measurement section.
For example, in the method of operating the reception device according to the present invention, the
That is, in the operation method of the reception apparatus according to the present invention, the packet type information (Message Type) field included in the header of the first partial data received through the 3G network to check whether the identification information is inserted, identification information If the first partial data inserted is recognized as the beginning of the data transmission rate measurement section (S210), and if it is recognized that the reception of the partial data not inserted into the identification information is recognized as the end of the data transmission rate measurement section (S220), After receiving the first partial data in which the identification information is inserted, the data rate measurement section of the 3G network is defined until the first partial data in which the identification information is not inserted is received / recognized.
In addition, the operation method of the receiving apparatus according to the present invention, by checking the packet attribute information (Message Type) field included in the header of the second partial data received via the WiFi network to confirm whether the identification information is inserted, identification information When the second partial data inserted is recognized as the beginning of the data transmission rate measurement section (S230), and when it is recognized that the reception of the partial data not inserted into the identification information is recognized as the end of the data transmission rate measurement section (S240), After receiving the second partial data in which the identification information is inserted, the data rate measurement interval of the WiFi network is defined until the second partial data without the identification information is received / recognized.
In operation S250, the method for operating the reception apparatus according to the present invention measures the data transmission rate for each access network based on the partial data received during the corresponding data transmission rate measurement interval for each access network (S250).
That is, the operation method of the receiving apparatus according to the present invention, for each access network (eg, 3G and WiFi), the size of the partial data inserted with the identification information received during the data transmission rate measurement interval is required to receive the partial data The data rate of each access network may be measured based on time.
For example, the operating method of the reception device according to the present invention corresponds to a point of time from the reception of the first partial data in which the identification information is inserted corresponding to the 3G network until the reception time of the first partial data in which the identification information is not inserted. During the data rate measurement interval (eg x seconds) of the 3G network, the data of the 3G network based on the size of at least one received first partial data and the time taken to receive the first partial data (eg x seconds). Rate can be measured.
In addition, the operation method of the receiving apparatus according to the present invention, the WiFi network corresponding to the point of time of receiving the second partial data with the identification information is inserted corresponding to the WiFi network from the time of receiving the second partial data is not inserted The data rate of the WiFi network is measured based on the size of the at least one second partial data received and the time required to receive the second partial data (eg y seconds) during the data transmission rate measurement interval (eg y seconds). It can be measured.
In addition, the operation method of the receiving apparatus according to the present invention, the data transmission rate for each of the access network to be set variably based on the data transmission rate for each access network measured the data transmission rate for each access network (eg, 3G and WiFi). .
That is, in the operating method of the reception apparatus according to the present invention, the measured data transmission rate for each access network is transmitted to the
Accordingly, the method of operating the reception apparatus according to the present invention provides the
As described above, according to the heterogeneous network-based simultaneous data transmission service method according to the present invention, in the heterogeneous network environment in the simultaneous transmission by dividing the transmission target data according to the data transmission rate for each access network, for each network Depending on the characteristics (eg, throughput, delay, loss, etc.), the data transmission rate for each access network may be measured based on the data rate measurement interval set for each network, and the data transmission rate for each access network may be variably set.
Accordingly, according to the heterogeneous network-based simultaneous data transmission service method according to the present invention, reflecting the different characteristics for each network, considering the optimal traffic conditions for each access network in real time, and improve the data service quality by transferring the data traffic of the entire network Network stability can be secured.
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 simultaneous data transmission service method according to the present invention, the data transmission rate for each access network is measured based on the data rate measurement interval set differently for each network according to the characteristics (for example, throughput, delay, loss, etc.) for each network. Based on this, variable data transmission rate is set for each access network, reflecting the different characteristics of each network, considering the optimal traffic conditions for each access network in real time, and improving the data service quality by transferring the data traffic of the entire network. In terms of securing stability, the industrial users are not only not only available for related technologies but also commercially available or commercially viable, as well as practically clearly implemented. The invention with a castle.
400: management device
410: measuring section setting section
420: control unit
430: communication unit
Claims (15)
The partial data divided from the transmission target data is selected for each access network based on a preset data transmission rate for each access network, and data is included in at least one partial data corresponding to the set data rate measurement interval among the selected partial data for each access network. A control unit which inserts and provides identification information for confirming a transmission rate; And
It includes a communication unit for transmitting the selected partial data through two or more networks,
The control unit,
And varyingly setting the data transmission rate for each access network based on a data transmission rate for each access network measured according to whether the identification information inserted into the partial data transmitted for each access network is recognized.
The measurement section setting unit,
And for each of the two or more networks, setting the data rate measuring interval including at least one of a data rate measuring time and a number of data rate measuring packets according to characteristics of the network.
The control unit,
For each of the access networks, based on the data transmission rate for each access network measured by the apparatus for receiving the partial data into which the identification information is inserted, based on the size of the received partial data and the time required for receiving the partial data. And setting a variable data transmission rate for each of the preset access networks.
Based on the partial data received for each access network, the data rate for each access network is measured during the data rate measurement interval in which the identification information for checking the data rate is recognized, and the preset access is based on the measured data rate for each access network. And a control unit configured to variably set a data transmission rate for each network.
The control unit,
For each of the access networks, if the reception of the partial data into which the identification information is inserted among the received partial data is recognized, it is recognized as the beginning of the data transmission rate measurement section. A receiving device, characterized in that it recognizes as the end of the rate measurement section.
The control unit,
For each of the access networks, receiving the data transmission rate for each access network based on the size of the partial data into which the identification information received during the data transmission rate measurement interval and the time required for receiving the partial data is measured. Device.
The control unit,
And providing the measured data transmission rate for each connection network to a management device that has transmitted the partial data divided from the transmission target data based on the preset data transmission rate for each connection network.
Selecting, by the management apparatus, partial data divided from transmission target data for each access network based on a preset data transmission rate for each access network;
The management apparatus inserts identification information for checking the data rate into at least one partial data corresponding to the set data rate measurement interval among the partial data selected for each of the access networks, and receives the selected partial data through two or more networks. Transmitting to;
Measuring, by the receiving apparatus, a data transmission rate for each access network during a data transmission rate measurement section in which identification information for confirming a data transmission rate is recognized based on the partial data received for each access network; And
Heterogeneous network-based simultaneous data transmission service method, characterized in that the management apparatus variable variable data transmission rate for each of the predetermined access network based on the data transmission rate for each of the access network measured by the receiving device.
A partial data selection step of selecting partial data divided from transmission target data for each access network based on a preset data transmission rate for each access network;
A measurement section applying step of inserting identification information for confirming a data transmission rate into at least one partial data corresponding to the set data transmission rate measurement section among the partial data selected for each access network;
A partial data transmission step of transmitting the selected partial data through two or more networks; And
And a variable setting step of variably setting the data transmission rate for each preset access network based on the data transmission rate for each access network measured according to the recognition of the identification information inserted into the partial data transmitted for each access network. Method of operation of the management device.
The measuring section setting step,
For each of the two or more networks, setting the data rate measuring interval including at least one of a data rate measuring time and a number of data rate measuring packets according to characteristics of a network.
The variable setting step includes:
For each of the access networks, based on the data transmission rate for each access network measured by the apparatus for receiving the partial data into which the identification information is inserted, based on the size of the received partial data and the time required for receiving the partial data. And operating a variable data transmission rate for each of the preset access networks.
A data rate measuring step of measuring a data rate for each access network during a data rate measurement section in which identification information for identifying a data rate is recognized based on the partial data received for each access network; And
And a variable setting step of varying a predetermined data transmission rate for each access network based on the measured data transmission rate for each access network.
The data rate measuring step,
For each of the access networks, if the reception of the partial data into which the identification information is inserted among the received partial data is recognized, it is recognized as the beginning of the data transmission rate measurement section. A method of operating a receiving apparatus, characterized in that it recognizes as the end of a rate measurement section.
The data rate measuring step,
For each of the access networks, receiving the data transmission rate for each access network based on the size of the partial data into which the identification information received during the data transmission rate measurement interval and the time required for receiving the partial data is measured. How the device works.
The variable setting step includes:
And providing the measured data transmission rate for each access network to a management device that has transmitted the partial data divided from the transmission target data based on the preset data transmission rate for each connection network.
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| KR101754364B1 (en) * | 2013-11-20 | 2017-07-07 | 한국전자통신연구원 | System and the Method of Key Management for Sensor Network Security |
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| KR100402785B1 (en) | 2000-12-27 | 2003-10-22 | 한국전자통신연구원 | Variable-rate QAM Transceiver |
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