KR20160123627A - Electronic device and method of transmitting data usnig multipath - Google Patents

Abstract

Provided are an electronic device and a method for transmitting data using multipath, capable of improving a data transmission speed or providing a seamless data service. According to various embodiments, the electronic device includes: a communication unit for transmitting and receiving data; and a control unit for determining, when setting data transmission connection between the electronic device and other electronic devices, a multipath data transmission algorithm to be used for data transmission between the electronic device and the other electronic devices among a plurality of multipath data transmission algorithms, on the basis of information related to at least one multipath data transmission algorithm which are transmitted or received through the communication unit, and for transmitting or receiving the data according to the determined multipath data transmission algorithm.

Description

TECHNICAL FIELD [0001] The present invention relates to an electronic device and a method of transmitting data using multi-

Various embodiments of the present invention are directed to electronic devices and methods of transmitting data using multipath.

Typically, an electronic device refers to a device that performs a specific function according to a program loaded from a home appliance to an electronic notebook, a portable multimedia player, a mobile communication terminal, a tablet PC, a video / audio device, a desktop / laptop computer, Device. For example, such electronic devices may output stored information as sound or video. As the degree of integration of electronic devices increases, ultra-high-speed and large-capacity wireless communications become popular, and various functions are currently being installed in one mobile communication terminal.

Further, in an electronic device, various services can be provided from another electronic device or server through a communication function. When transmitting and receiving data with other electronic devices or servers, an electronic device can transmit and receive data by generating a plurality of transmission connections through a multipath transport function. For example, in a protocol supporting multi-path transmission function such as multi-path TCP (multiprot TCP) or stream control transmission protocol (SCTP), each peer entity is required to transmit data requested by the application. It is possible to generate a plurality of transport connections and transmit data using them.

According to the existing technology, when an electronic device attempts to transmit / receive data using a multi-path transmission function, the transmission-side electronic device arbitrarily determines a data transmission algorithm irrespective of the type of the application or the characteristics of the user.

As described above, there is a problem that it is difficult to efficiently respond to various data transmission requirements for each user or each application of each electronic device when using only a predetermined multipath data transmission algorithm.

Various embodiments of the present invention provide a method and apparatus for exchanging data transmission algorithm related information desired to be used in each electronic device with another electronic device in a multi-path transmission connection establishment, It is possible to provide an electronic device capable of transmitting and receiving data through a path data transmission algorithm and a data transmission method using multipath.

In addition, various embodiments of the present invention allow for a user to set different data transmission algorithms on a per application-by-application basis, thereby providing an electronic device capable of satisfying differentiated data transfer requirements on a user- Can be provided.

According to an embodiment of the present invention, there is provided an electronic device including: a communication unit for transmitting and receiving data; And data associated with the other of the plurality of multipath data transmission algorithms based on information associated with at least one multipath data transmission algorithm transmitted or received via the communication unit when establishing a data transmission connection with another electronic device And a controller for controlling transmission and reception of data according to the determined multi-path data transmission algorithm.

In addition, the multi-path data transmission method according to any one of the various embodiments may further include, when setting up a data transmission connection with another electronic device, transmitting, based on information related to at least one multi- Determining a multi-path data transmission algorithm to be used for transmission of data with the other electronic device among the multi-path data transmission algorithms; And transmitting or receiving data according to the determined multipath data transmission algorithm.

The electronic device and the information providing method of the electronic device according to various embodiments provide a data transmission speed enhancement or seamless data service when a protocol supporting a multipath transmission function (for example, MPTCP, SCTP, etc.) is applied .

Further, according to various embodiments of the present invention, it is possible to transmit and receive data through an algorithm having the same or similar operating characteristics among the respective peer entities by exchanging information related to a data transmission algorithm that each entity desires to use in multipath setting have.

Accordingly, it is possible to control the amount of data transmission using a specific network (e.g., a cellular network) for each user or each application, and to provide a data service suited to the attributes of a user or an application. For example, according to various embodiments of the present invention, a user can set up a multi-path data transmission algorithm differentiated for each application, and by transmitting and receiving data using a multi-path with an established algorithm, It is possible to provide a service that satisfies all the requirements of the application or the characteristics of the application.

1 is a diagram showing an example of a network configuration according to various embodiments of the present invention.
2 is a block diagram illustrating a detailed configuration example of an electronic device according to various embodiments of the present invention.
3 is a flowchart illustrating a data transmission procedure using multiple paths according to various embodiments of the present invention.
4 is a signal flow diagram between devices for multipathing in accordance with various embodiments of the present invention.
5 is a flow diagram illustrating a procedure for establishing a transport connection in an electronic device according to various embodiments of the present invention.
6 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention.
7 is a flow diagram illustrating a procedure for establishing a transport connection in an electronic device according to various embodiments of the present invention.
8 is a diagram illustrating a data field for transmission algorithm identification according to various embodiments of the present invention.
9 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention.
10 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention.
11 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention.
12 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention.
Figure 13 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention.
14 is a flow diagram illustrating a procedure for establishing a transport connection in an electronic device according to various embodiments of the present invention.
15 is a diagram illustrating an operational flow in an electronic device according to various embodiments of the present invention.
16 is a diagram illustrating the operational flow within an electronic device according to various embodiments of the present invention.
17 is a diagram illustrating an operational flow in an electronic device according to various embodiments of the present invention.
18A is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention.
18B is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention.
19 is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention.
20 is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention.
21 is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention.
22 is a view showing a data usage history screen in an electronic device according to various embodiments of the present invention.
23 is a diagram illustrating an operational flow within an electronic device according to various embodiments of the present invention.
24 is a diagram illustrating an operational flow within an electronic device according to various embodiments of the present invention.
25 is a block diagram showing a detailed structure of an electronic device according to an embodiment of the present invention.
26 is a block diagram of a program module in accordance with various embodiments of the present invention.

Various embodiments of the invention will now be described with reference to the accompanying drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes various modifications, equivalents, and / or alternatives of the embodiments of the invention. In connection with the description of the drawings, like reference numerals may be used for similar components.

In this document, the expressions "have," "may," "include," or "include" may be used to denote the presence of a feature (eg, a numerical value, a function, Quot ;, and does not exclude the presence of additional features.

In this document, the expressions "A or B," "at least one of A and / or B," or "one or more of A and / or B," etc. may include all possible combinations of the listed items . For example, "A or B," "at least one of A and B," or "at least one of A or B" includes (1) at least one A, (2) Or (3) at least one A and at least one B all together.

Expressions such as " first, "second," first, "or" second, " as used in various embodiments, Not limited. The representations may be used to distinguish one component from another. For example, the first user equipment and the second user equipment may represent different user equipment, regardless of order or importance. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be named as the first component.

(Or functionally or communicatively) coupled with / to "another component (eg, a second component), or a component (eg, a second component) Quot; connected to ", it is to be understood that any such element may be directly connected to the other element or may be connected through another element (e.g., a third element). On the other hand, when it is mentioned that a component (e.g., a first component) is "directly connected" or "directly connected" to another component (e.g., a second component) It can be understood that there is no other component (e.g., a third component) between other components.

As used herein, the phrase " configured to " (or set) to be "adapted to, " To be designed to, "" adapted to, "" made to, "or" capable of ". The term " configured (or set) to "may not necessarily mean " specifically designed to" Instead, in some situations, the expression "configured to" may mean that the device can "do " with other devices or components. For example, a processor configured (or configured) to perform the phrases "A, B, and C" may be a processor dedicated to performing the operation (e.g., an embedded processor), or one or more software programs A generic-purpose processor (e.g., a CPU or an application processor) capable of performing the corresponding operations.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. Commonly used predefined terms may be interpreted to have the same or similar meaning as the contextual meanings of the related art and are not to be construed as ideal or overly formal in meaning unless expressly defined in this document . In some cases, the terms defined in this document can not be construed to exclude embodiments of the present invention.

An electronic device in accordance with various embodiments of the present invention can be used in various applications such as, for example, a smartphone, a tablet personal computer, a mobile phone, a videophone, an e-book reader reader, a desktop personal computer, a laptop personal computer, a netbook computer, a workstation, a server, a personal digital assistant (PDA), a portable multimedia player (PMP) , Mobile medical devices, cameras, or wearable devices such as smart glasses, head-mounted-devices (HMD), electronic apparel, electronic bracelets, electronic necklaces, (e. g., apps, e-tat, smart mirror, or smart watch).

In some embodiments, the electronic device may be a smart home appliance. Smart home appliances include, for example, televisions, digital video disk players, audio, refrigerators, air conditioners, vacuum cleaners, ovens, microwaves, washing machines, air cleaners, set- (Such as a home automation control panel, a security control panel, a TV box such as Samsung HomeSync ™, Apple TV ™ or Google TV ™), a game console (eg Xbox ™, PlayStation ™) A dictionary, an electronic key, a camcorder, or an electronic frame.

In an alternative embodiment, the electronic device may be any of a variety of medical devices (e.g., various portable medical measurement devices such as a blood glucose meter, a heart rate meter, a blood pressure meter, or a body temperature meter), magnetic resonance angiography (MRA) A global positioning system receiver, an event data recorder (EDR), a flight data recorder (FDR), an automotive infotainment device, a navigation system, a navigation system, Electronic devices (eg marine navigation devices, gyro compass, etc.), avionics, security devices, head units for vehicles, industrial or home robots, ATMs (automatic teller's machines) point of sale, or internet of things (IoT), such as light bulbs, various sensors, electricity or gas meters, sprinkler devices, fire alarms, thermostats, streetlights, toasters aster, a fitness equipment, a hot water tank, a heater, a boiler, etc.).

According to some embodiments, the electronic device is a piece of furniture or a part of a building / structure, an electronic board, an electronic signature receiving device, a projector, Water, electricity, gas, or radio wave measuring instruments, etc.). In various embodiments, the electronic device may be a combination of one or more of the various devices described above. An electronic device according to some embodiments may be a flexible electronic device. In addition, the electronic device according to the embodiment of the present invention is not limited to the above-described devices, and may include a new electronic device according to technological advancement.

Also, in various embodiments of the invention described below, an electronic device may be used with the terms "server", "host" or "peer" And the terms used as examples of the electronic device do not limit the scope of the present invention to the specific embodiments.

Also, in various embodiments of the present invention described below, an MPTCP transmission protocol is exemplified as an example of a protocol supporting the multi-path transmission function to which the present invention is applied. However, when the embodiments of the present invention are applied to the MPTCP transmission protocol The embodiments of the present invention can be applied to any protocol that supports the multipath transmission function. For example, the present invention can be applied to a protocol supporting various types of multipath transmission functions such as a stream control transmission protocol (SCTP).

1 is a diagram showing an example of a network configuration according to various embodiments of the present invention. Referring to FIG. 1, a first electronic device 101 and a second electronic device 102 may be connected through a network 110 in accordance with various embodiments of the present invention. For example, when the first electronic device 101 and / or the second electronic device 102 support a multipath transmission protocol (e.g., MPTCP) function, the first electronic device 101 and the second electronic device 102, Can be connected by multiple paths. Accordingly, the first electronic device 101 transmits a plurality of transmission paths (e.g., wireless fidelity (Wifi) and long term evolution (LTE)) to the second electronic device 102 for the data requested by one application .

The network 110 may include at least one wireless communication network or at least one wired communication network and may provide communication between the server and electronic or electronic devices. For example, the network 110 may be a Wifi, Bluetooth, NFC, GPS, or cellular communication (e.g., LTE, LTE-A, CDMA , WCDMA, UMTS, WiBro or GSM, etc.). The wired communication method may include at least one of a universal serial bus (USB), a high definition multimedia interface (HDMI), a recommended standard 232 (RS-232) or a plain old telephone service (POTS) .

2 is a block diagram illustrating a detailed configuration example of an electronic device according to various embodiments of the present invention. 2, an electronic device 200 according to various embodiments of the present invention may include at least one of a control unit 210, a storage unit 220, a communication unit 230, or a display unit 240 have. The control unit 210 may include at least one of an algorithm setting unit 211, a transmission connection setting unit 212, an algorithm determining unit 213, and a transmission / reception processing unit 214. The storage 220 may also include at least one of an application 221, an API 222, a middleware (e.g., a framework 223), or a kernel 224.

For example, the application 221 stored in the storage unit 220 may be executed to request data from another electronic device outside the electronic device 200. [ Hereinafter, the electronic device 200 will be referred to as a "first electronic device" or "host A", and the external electronic device or server will be referred to as a "second electronic device" or "host B". In the various embodiments of the present invention, the electronic devices may perform functions of a host, one of the electronic devices performs a function of a host, and the other electronic device performs functions of a client (or a slave device) You may.

The algorithm setting unit 211 of the control unit 210 may perform a function of setting at least one algorithm among a plurality of multipath data transmission algorithms. The algorithm may be set to apply equally to all applications, or may be set to be applied differently for each application. In addition, the algorithm may be set to change according to a specific condition. Specific examples of how to set the algorithm will be described in Figs. 18A, 18B, 19, 20, and 21. Fig. Also, according to various embodiments of the present invention, a user interface (UI) screen for setting the algorithm may be displayed through the display unit 240. The algorithm setting operation through the algorithm setting unit 211 can be selectively performed.

The transmission connection establishing unit 212 may perform a function of establishing a transmission connection from the electronic device 200 to another electronic device. The transport connection establishment operation may be based on, for example, a transport connection operation by the TCP protocol. When a transmission connection scheme based on the TCP protocol is applied, a 3-way handshaking process including SYN, SYN + ACK, and ACK signal transmission may be performed. In the various embodiments described below, the 3-way handshaking is described as an example, but the embodiments of the present invention are not limited thereto.

In addition, the transport connection establishment unit 212 may further include an additional subflow setting operation for a multi-path transport connection according to various embodiments of the present invention. The additional sub-flow setting operation may be based on, for example, a transport connection operation by the TCP protocol. The data transfer connection setting method set by the additional subflow setting operation may be the same communication method as the initial connection setting method, or a different communication method may be used. For example, a Wifi communication scheme may be used as the initial connection establishment scheme, and an LTE communication scheme may be used as the additional subflow establishment scheme. Detailed embodiments of the transmission connection setting unit 212 will be described later with reference to FIG.

The algorithm determining unit 213 may determine whether or not at least one of the plurality of multiplexing / demultiplexing units is to be transmitted / received to / from an external electronic device in the initial connection establishment operation and / or the additional subflow setting operation through the transmission connection establishing unit 212 according to various embodiments of the present invention. Path data transmission algorithm to be used for transmission of data with the other electronic device among a plurality of multipath data transmission algorithms based on information related to the path data transmission algorithm.

The transmission / reception processing unit 214 may control the communication unit 230 to transmit or receive data according to the multipath data transmission algorithm determined through the algorithm determination unit 213.

The communication unit 230 can perform a function of communicating data with another electronic device in the outside of the electronic device 200. The communication unit 230 processes data transmission and reception by a multipath data transmission algorithm under the control of the transmission / can do. In addition, the communication unit 230 may include a plurality of communication modules (e.g., a Wifi module and an LTE module) in applying the multi-path data transmission algorithm according to various embodiments of the present invention.

In the various embodiments of the present invention, each functional unit or module may mean a functional and structural combination of hardware for performing the technical idea of various embodiments of the present invention and software for driving the hardware. For example, each functional unit or module may refer to a logical unit of a predetermined code and a hardware resource for executing the predetermined code, and may be a code that is physically connected, or a type of hardware Or may be easily deduced to the average expert in the field of the embodiments of the present invention.

An electronic device according to any one of the various embodiments of the present invention includes: a communication unit for transmitting and receiving data; And data associated with the other of the plurality of multipath data transmission algorithms based on information associated with at least one multipath data transmission algorithm transmitted or received via the communication unit when establishing a data transmission connection with another electronic device And a controller for controlling transmission and reception of data according to the determined multi-path data transmission algorithm.

According to various embodiments of the present invention, the multi-path data transmission algorithm may be an algorithm for simultaneously using a plurality of communication methods, an algorithm for simultaneously using a plurality of communication methods, 2 communication scheme, an algorithm for switching to and using a second communication scheme when a second condition set in advance during use by the first communication scheme among the plurality of communication schemes is satisfied, an algorithm for switching among the plurality of communication schemes 1 communication scheme to the second communication scheme and switching to the first communication scheme if the predetermined third condition is satisfied while using the second communication scheme.

According to various embodiments of the present invention, the first condition may have a different criterion than the second condition.

According to various embodiments of the present invention, the communication scheme may be one or more of Wifi, Bluetooth, NFC, GPS, LTE, LTE-A, CDMA, WCDMA, (UMTS), WiBro, GSM, universal serial bus (USB), high definition multimedia interface (HDMI), recommended standard 232 (RS-232) or plain old telephone service (POTS).

According to various embodiments of the present invention, the information associated with the at least one multipath data transmission algorithm may be transmitted or received upon initial connection establishment with the other electronic device.

According to various embodiments of the present invention, the initial connection establishment may be established by a transmission control protocol (TCP) protocol.

According to various embodiments of the present invention, the information associated with the at least one multipath data transmission algorithm may be transmitted or received at additional sub-flow settings for multipath connection establishment after initial connection establishment with the other electronic device have.

According to various embodiments of the present invention, the additional sub-flow setting may be established by at least one of a multipath transmission control protocol (MPTCP) protocol and a stream control transmission protocol (SCTP).

According to various embodiments of the present invention, the electronic device may further include a display unit for displaying a setting screen for the multipath data transmission algorithm.

According to various embodiments of the present invention, the multi-path data transmission algorithm may be set with the algorithm described above for each of a plurality of applications installed in the electronic device.

3 is a flowchart illustrating a data transmission procedure using multiple paths according to various embodiments of the present invention. Referring to FIG. 3, at operation 301, at least one of the plurality of multipath data transmission algorithms may be set up in a multipath data transmission algorithm. The setting of the algorithm may be set for each application or may be set for each user. The setting operation of the algorithm may be omitted according to various embodiments of the present invention.

At operation 303, at least one of the multipath data transmission algorithm information may be transmitted and / or received at operation 305 if the transmission or reception of data from the electronic device to another electronic device is requested. By transmitting or receiving information about a multipath data transmission algorithm in accordance with various embodiments of the present invention, for example, in establishing a connection with another electronic device to send and receive data (e.g., establishing a connection by a TCP protocol) Information about the multi-path data transmission algorithm can be exchanged.

In operation 307, an algorithm to be used for data transmission may be determined based on at least one of the transmitted and / or received multi-path data transmission algorithm related information. In operation 309, data may be transmitted with the algorithm determined above.

At least one of the operations shown in FIG. 3 may be omitted and at least one other operation may be added between the operations. In addition, the operations of FIG. 3 may be processed in the order shown, and the execution order for at least one operation may be changed and processed according to the execution order of other operations.

The multi-path data transmission method according to any one of the various embodiments of the present invention is a multi-path data transmission method using multiple paths based on information related to at least one multi- Determining a multi-path data transmission algorithm for use in transmission of data with the other electronic device among the multi-path data transmission algorithms of the multi-path data transmission algorithms; And transmitting or receiving data according to the determined multipath data transmission algorithm.

According to various embodiments of the present invention, the multi-path data transmission algorithm may be an algorithm for simultaneously using a plurality of communication methods, an algorithm for simultaneously using a plurality of communication methods, 2 communication scheme, an algorithm for switching to and using a second communication scheme when a second condition set in advance during use by the first communication scheme among the plurality of communication schemes is satisfied, an algorithm for switching among the plurality of communication schemes 1 communication scheme to the second communication scheme and switching to the first communication scheme if the predetermined third condition is satisfied while using the second communication scheme.

According to various embodiments of the present invention, the first condition may have a different criterion than the second condition.

According to various embodiments of the present invention, the communication scheme may be one or more of Wifi, Bluetooth, NFC, GPS, LTE, LTE-A, CDMA, WCDMA, (UMTS), WiBro, GSM, universal serial bus (USB), high definition multimedia interface (HDMI), recommended standard 232 (RS-232) or plain old telephone service (POTS).

According to various embodiments of the present invention, the information associated with the at least one multipath data transmission algorithm may be transmitted or received upon initial connection establishment with the other electronic device.

According to various embodiments of the present invention, the initial connection establishment may be established by a transmission control protocol (TCP) protocol.

According to various embodiments of the present invention, the information associated with the at least one multipath data transmission algorithm may be transmitted or received at additional sub-flow settings for multipath connection establishment after initial connection establishment with the other electronic device have.

According to various embodiments of the present invention, the additional sub-flow setting may be established by at least one of a multipath transmission control protocol (MPTCP) protocol and a stream control transmission protocol (SCTP).

According to various embodiments of the present invention, the method may further comprise setting the multi-path data transmission algorithm.

According to various embodiments of the present invention, the multipath data transmission algorithm may be set with a different algorithm for each of a plurality of applications installed in the electronic device.

4 is a signal flow diagram between devices for multipathing in accordance with various embodiments of the present invention. Referring to FIG. 4, an initial connection may be established with the second electronic device 102 at the first electronic device 101 at operation 410. Further, in operation 420, according to the multipath transmission connection, the first electronic device 101 may be configured with the second electronic device 102 and additional sub-flows. For example, the first electronic device 101 may be connected to the address B1 of the second electronic device 102 with the address A1 of the first electronic device 101 according to the initial connection setting, May be coupled to the address B1 of the second electronic device 102 at address A2.

Before describing the embodiment of the present invention with reference to FIG. 4, a protocol configuration when MPTCP is used as an example of a protocol used for multipath transmission connection will be described.

For example, the initial connection between the first electronic device 101 supporting the MPTCP and the second electronic device 102 in the procedure shown in FIG. 4 may be the same procedure as the TCP connection. Upon establishment of the initial connection, each of the electronic devices 101 and 102 informs that the partner electronic device supports MPTCP. If it is confirmed that both electronic devices 101 and 102 support MPTCP, Additional sub-flow setting) can be performed. By repeating this procedure, a plurality of transport connections can be created between the two electronic devices 101, 102.

When multiple transport connections are created, various algorithms can be used for data transmission. For example, it is possible to improve the throughput by using an algorithm that uses a plurality of transmission connections at the same time, or to transmit data using only one transmission connection among a plurality of transmission connections, By using an algorithm that transfers data by switching to another transport connection, there is no improvement in transmission speed, but the service may be provided seamlessly. In addition, various algorithms may be implemented to switch according to various switching criteria (e.g., switching sensitivity or performance) when transferring data using one transmission connection and switching to another transmission connection.

More specifically, two or more wireless interfaces, such as Wifi and a cellular network, may be provided in a mobile terminal. When a transmission protocol supporting the multi-path transmission function such as MPTCP is applied to a mobile terminal, it is possible to provide a data transmission speed improvement or seamless data service.

In a protocol supporting the multipath transmission function, the data transmission amount using the cellular network may be changed according to the data transmission algorithm being used. For example, using an algorithm that transmits data using Wifi and a cellular network at the same time can greatly increase the amount of data traffic using a cellular network. On the other hand, if Wifi is used for the first time and data transmission is not smooth, data transmission using a cellular network is reduced by using an algorithm for data transmission by switching to a cellular network having good data transmission. At this time, the data transmission amount using the cellular network may be changed according to the condition of switching from Wifi to cellular network.

Generally, in a cellular network, the cost that a user has to pay can be greatly increased depending on the amount of data transmitted and received. Accordingly, an appropriate adjustment to the amount of data transmitted over the cellular network is needed, which may be determined by considering the user's tariff, user preference, type of application, and the like. For example, assume that there is a user A who can use only a small amount of data. If user A uses a video on demand (VOD) application that transmits a large amount of data, The fee can be greatly increased. On the other hand, in the case of a chat application, the real time property is important, but the amount of data to be transmitted / received is small, so that data transmission through the cellular network may not be a big problem. Also, in case of the user A, since the amount of data to be transmitted / received may increase when the web surfing is used for a long time, data transmission using the cellular network during web surfing can be reduced as much as possible. On the other hand, in case of the user B who can use a large amount of data, data transmission using the cellular network may not be a problem even when surfing the web.

Various embodiments of the present invention disclose various embodiments in which an optimal multi-path data transmission algorithm can be applied among a plurality of multi-path data transmission algorithms in consideration of such various situations.

Referring again to FIG. 4, at the initial connection between the first electronic device 101 and the second electronic device 102 supporting multi-path data transmission in operation 410, each electronic device 101, (E.g., profiles) related to multipath data transmission algorithms wishing to use with information that supports a multipath function. If both electronic devices 101 and 102 support the multipath transmission function, an additional connection setup may be performed at operation 420.

At least one of the electronic devices 101 and 102 may then select an algorithm to be used for data transmission considering information related to the multipath data transmission algorithm received from the other party, Data can be transmitted.

5 is a flow diagram illustrating a procedure for establishing a transport connection in an electronic device according to various embodiments of the present invention. 5, when an electronic device (hereinafter, referred to as a first electronic device) receives a request to establish a transport connection with another electronic device (hereinafter referred to as a second electronic device) in operation 501, At 503, an initial connection establishment operation with the second electronic device can be performed. The transmission connection establishment request may be requested according to the execution of the application.

According to various embodiments of the present invention, the first electronic device determines whether the second electronic device supports a multipath transmission function from the second electronic device during the initial connection establishment and a multipath data transmission algorithm Related information.

At operation 505, if the second electronic device does not support the multipath transmission function, then at operation 515, the first electronic device may operate in a single path communication mode.

On the other hand, if, at the operation 505, the second electronic device supports the multipath transmission function, then at operation 507, the first electronic device may store information related to the multipath data transmission algorithm received from the second electronic device.

In operation 509, if the multipath data transmission algorithm received from the second electronic device is acceptable, considering the multipath data transmission algorithm that it wishes to use in the first electronic device, May proceed in an additional subflow setup procedure at operation 511 and may operate in a multipath communication mode at operation 513. [

On the other hand, if in operation 509 the multipath data transmission algorithm received from the second electronic device is not acceptable when considering a multipath data transmission algorithm that it wishes to use in the first electronic device, Path communication mode at operation 515 without proceeding with an additional sub-flow setup operation with the second electronic device.

6 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention. Referring to FIG. 6, during an initial connection between a first electronic device 101 and a second electronic device 102 that support data transmission using multiple paths at operation 610, each electronic device 101, Information that supports the multipath function can be transmitted and received. If both electronic devices 101 and 102 support the multi-path transmission function, an additional connection setup may be performed at operation 620.

In the additional connection establishment operation according to various embodiments of the present invention, the first electronic device 101 and the second electronic device 102 may send and receive information related to the data transmission algorithm they wish to use. For example, the first electronic device 101 or the second electronic device 102 may select an algorithm to use for data transmission in consideration of algorithm-related information received from the other party, Can be transmitted.

7 is a flow diagram illustrating a procedure for establishing a transport connection in an electronic device according to various embodiments of the present invention. 7, when an electronic device (hereinafter, referred to as a first electronic device) receives a request to establish a transport connection with another electronic device (hereinafter, referred to as a second electronic device) in operation 701, At 703, the first electronic device may perform an initial connection establishment operation with the second electronic device. The transmission connection establishment request may be requested according to the execution of the application.

According to various embodiments of the present invention, the first electronic device may be informed of whether it supports the multipath transmission function from the second electronic device during the initial connection establishment.

At operation 705, if the second electronic device does not support the multipath transmission function, then at operation 715, the first electronic device may operate in a single path communication mode.

If, on the other hand, in operation 705, the second electronic device supports the multipath transmission function, then in operation 707 an additional sub-flow setup procedure with the second electronic device may proceed. In operation 709, the first electronic device may receive and store multipath data transmission algorithm related information that it desires to use from the second electronic device.

In operation 711, when considering the multipath data transmission algorithm that the first electronic device desires to use, if the multipath data transmission algorithm received from the second electronic device is acceptable, Lt; RTI ID = 0.0 > 713 < / RTI >

On the other hand, if in operation 711 the multipath data transmission algorithm received from the second electronic device is not acceptable considering the multipath data transmission algorithm that it wishes to use in the first electronic device, The first electronic device may close the already performed additional subflow setting operation with the second electronic device and may operate in a single pass communication mode at operation 715. [

8 is a diagram illustrating a data field for transmission algorithm identification according to various embodiments of the present invention. Referring to FIG. 8, an example of information related to multipath data transmission algorithms transmitted and received between electronic devices is disclosed, in accordance with various embodiments of the present invention. Although FIG. 8 assumes three types of multipath data transmission algorithms, the embodiments of the present invention are not limited thereto.

For example, by setting the F (full) data field 801, the h (half) data field 802, and the l (low) data field 803 as three types of algorithms according to various embodiments of the present invention And may indicate whether or not each electronic device supports the algorithm.

For example, if the data of the F data field 801 is 1, the corresponding electronic device may indicate that it supports an algorithm that uses a plurality of transmission connections at the same time. When the h data field 802 is 1, the corresponding electronic device transmits data using one of the plurality of transmission connections. If the data transmission is not smooth (for example, if the first condition is satisfied ) May indicate that the data transmission supports an algorithm for transferring data by switching to another good transport connection. If the data field 803 is 1, the corresponding electronic device transmits data using one of the plurality of transmission connections. If the data transmission is very bad (for example, if the preset second condition is satisfied ) May indicate that the data transmission supports an algorithm for transferring data by switching to another good transport connection. For example, the algorithm corresponding to the h data field 802 and the algorithm corresponding to the l data field 803 are the same as those for switching the transmission connection when the data transmission state is poor, Different algorithms can be distinguished.

For example, if the F data field 801 is 1 in a mobile terminal supporting Wifi and a cellular network, a large amount of data can be transmitted to the cellular network. In addition, for example, if the h data field 802 is 1 and the Wifi is preferentially selected and data is transmitted, if the Wifi state is unstable, the cellular network is switched to the cellular network from time to time, and the service can be seamlessly provided. However, such an algorithm can send less data to the cellular network. In addition, if the data field is 1 and the Wifi is preferentially selected and data is transmitted, the WLAN is switched to the cellular network only when the Wifi is very bad, so there may be some service disconnection time. However, Lt; / RTI >

Hereinafter, referring to Figs. 9 to 13, various embodiments for applying the three way algorithms of Fig. 8 according to various embodiments of the present invention will be described.

9 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention. In the embodiment of FIG. 9, the first electronic device 101 and the second electronic device 102 illustrate an example of desiring to exchange data by using an algorithm when the h data field of the multipath data transmission algorithm is 1 do.

Referring to FIG. 9, at operation 910, the first electronic device 101 may send a SYN signal for initial connection to the second electronic device 102. In accordance with various embodiments of the present invention, upon transmission of the SYN signal, the first electronic device 101 may send an MP_CAPABLE parameter for connection between the first electronic device 101 supporting the MPTCP and the second electronic device 102 To the second electronic device 102. The second electronic device 102 may send a SYN message to the second electronic device 102, In this case, the MP_CAPABLE parameter may include multipath data transmission algorithm related information (F = 0, h = 1, l = 0) desired to be used in the first electronic device 101. In the following embodiments, it is assumed that the MP_CAPABLE parameter includes information related to the multipath data transmission algorithm. However, the present invention is not limited to the MP_CAPABLE parameter, It may be added and transmitted as separate information from the parameter.

The second electronic device 102 receives the algorithm related information (F = 0, h = 1, l = 0) transmitted from the first electronic device 101 and the information The multipath data transmission algorithm to be used between the two electronic devices can be selected by combining the information related to the multipath data transmission algorithm (F = 0, h = 1, l = 0).

In the case of the embodiment of FIG. 9, since the multipath data transmission algorithm that the first electronic device 101 and the second electronic device 102 desire to use is the same, an algorithm when the h data field is 1 is used You can decide. The second electronic device 102 includes multiprocess data transmission algorithm related information (F = 0, h = 1, l = 0) determined to be used for data transmission with the first electronic device 101 in the MP_CAPABLE parameter And transmit a SYN / ACK message containing the information to the first electronic device 101 at operation 920. [

At operation 930, the first electronic device 101 accepts the connection and sets the MP_CAPABLE parameter in the ACK message to the second electronic device 102 since the same type of algorithm as the algorithm of the desired type has been selected have.

Thereafter, in operation 940 to operation 960, the first electronic device 101 and the second electronic device 102 may proceed to an additional sub-flow setting procedure by transmitting and receiving a SYN, SYN / ACK, and ACK message including the MP_JOIN parameter . After the connection is established, the first electronic device 101 and the second electronic device 102 may transmit data using the corresponding multipath data transmission algorithm if the h data field is one.

10 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention. In the embodiment of FIG. 10, the first electronic device 101 and the second electronic device 102 use the algorithm when the h data field is 1 and the F data field is 1, respectively, of the multipath data transmission algorithm, The user wants to transmit / receive the data.

Referring to FIG. 10, at operation 1010, the first electronic device 101 may transmit a SYN signal for initial connection to the second electronic device 102. In accordance with various embodiments of the present invention, upon transmission of the SYN signal, the first electronic device 101 may send an MP_CAPABLE parameter for connection between the first electronic device 101 supporting the MPTCP and the second electronic device 102 To the second electronic device 102. The second electronic device 102 may send a SYN message to the second electronic device 102, In this case, the MP_CAPABLE parameter may include multipath data transmission algorithm related information (F = 0, h = 1, l = 0) desired to be used in the first electronic device 101.

The second electronic device 102 receives the algorithm related information (F = 0, h = 1, l = 0) transmitted from the first electronic device 101 and the information The multipath data transmission algorithm to be used between the two electronic devices can be selected by combining the information related to the multipath data transmission algorithm (F = 1, h = 0, l = 0).

In the case of the embodiment of FIG. 10, in the second electronic device 102, the first electronic device 101 and the second electronic device 102 are different from each other in the multipath data transmission algorithm they desire to use, It can be determined that the algorithm of the multipath data transmission transmitted from the electronic device 101 is an acceptable algorithm and that the algorithm when the F data field is 1 is used. The second electronic device 102 includes multiprocess data transmission algorithm related information (F = 1, h = 0, l = 0) determined to be used for data transmission with the first electronic device 101 in the MP_CAPABLE parameter And may send a SYN / ACK message containing the information to the first electronic device 101 at operation 1020. [

The first electronic device 101 may identify the multipath data transmission algorithm related information contained in the MP_CAPABLE parameter received from the second electronic device 102 and may accept the received multipath data transmission algorithm, It is determined that the multipath data transmission algorithm determined to be used in the second electronic device 102 is different from the algorithm of the type desired by the second electronic device 102, unlike the judgment in the second electronic device 102 It is possible. Thus, for example, the first electronic device 101 does not accept the MPTCP connection with the second electronic device 102, and can remove the MPTCP option in the ACK message at operation 1030 and send it to the second electronic device 102 have. A legacy TCP (Legacy TCP) connection can be established between the first electronic device 101 and the second electronic device 102 through this procedure.

11 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention. In the embodiment of FIG. 11, the first electronic device 101 and the second electronic device 102 each use an algorithm when the F data field of the multipath data transmission algorithm is 1 and the l data field is 1, The user wants to transmit / receive the data.

Referring to FIG. 11, at operation 1110, the first electronic device 101 may send a SYN signal for initial connection to the second electronic device 102. In accordance with various embodiments of the present invention, upon transmission of the SYN signal, the first electronic device 101 may send an MP_CAPABLE parameter for connection between the first electronic device 101 supporting the MPTCP and the second electronic device 102 To the second electronic device 102. The second electronic device 102 may send a SYN message to the second electronic device 102, At this time, the MP_CAPABLE parameter may include multipath data transmission algorithm related information (F = 1, h = 0, l = 0) desired to be used in the first electronic device 101.

The second electronic device 102 receives the algorithm related information (F = 1, h = 0, l = 0) received from the first electronic device 101 and the information The multipath data transmission algorithm to be used between the two electronic devices can be selected by combining the information related to the multipath data transmission algorithm (F = 0, h = 0, l = 1).

In the case of the FIG. 11 embodiment, it is determined that the first electronic device 101 and the second electronic device 102 differ in such a way that the desired multipath data transmission algorithm is unacceptable, and the MPTCP connection You may not accept it.

Accordingly, at operation 1120, the second electronic device 102 may remove and transmit the MPTCP option to the SYN / ACK message. The first electronic device 101 may determine from the second electronic device 102 that there is no MPTCP option in the SYN / ACK message to determine that the MPTCP connection is not accepted.

Thus, the first electronic device 101 may remove the MPTCP option from the ACK message and send it to the second electronic device 102 at operation 1030, without an MPTCP connection procedure with the second electronic device 102. A legacy TCP (Legacy TCP) connection can be established between the first electronic device 101 and the second electronic device 102 through this procedure.

12 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention. In the embodiment of FIG. 12, the first electronic device 101 may use any of the three types of multipath data transmission algorithms, and the second electronic device 102 may use the h data field of the multipath data transmission algorithm 1 < / RTI > is used to transmit / receive data.

Referring to FIG. 12, at operation 1210, the first electronic device 101 may send a SYN signal for initial connection to the second electronic device 102. In accordance with various embodiments of the present invention, upon transmission of the SYN signal, the first electronic device 101 may send an MP_CAPABLE parameter for connection between the first electronic device 101 supporting the MPTCP and the second electronic device 102 To the second electronic device 102. The second electronic device 102 may send a SYN message to the second electronic device 102, In this case, the MP_CAPABLE parameter may include multipath data transmission algorithm related information (F = 1, h = 1, l = 1) desired to be used in the first electronic device 101.

The second electronic device 102 receives the algorithm related information (F = 1, h = 1, l = 1) received from the first electronic device 101 and the information The multipath data transmission algorithm to be used between the two electronic devices can be selected by combining the information related to the multipath data transmission algorithm (F = 0, h = 1, l = 0).

12, the first electronic device 101 may use any of the three types of multipath data transmission algorithms, so that the second electronic device 102 may select one of the multi- It may be decided to use an algorithm when the h data field is 1, which is a data transmission algorithm. The second electronic device 102 may include in the MP_CAPABLE parameter the multipath data transmission algorithm related information (F = 0, h = 1, l = 0) determined to be used for data transmission with the first electronic device 101 And may send a SYN / ACK message containing the information to the first electronic device 101 at operation 1220.

The first electronic device 101 checks the MP_CAPABLE information transmitted by the second electronic device 102 because it does not matter which type of algorithm is used and in step 1230 sets the MP_CAPABLE parameter in the ACK message 2 < / RTI >

Thereafter, in operation 1240 to operation 1260, the first electronic device 101 and the second electronic device 102 may proceed to an additional sub-flow setup procedure by transmitting and receiving a SYN, SYN / ACK, and ACK message including the MP_JOIN parameter . After the connection is established, the first electronic device 101 and the second electronic device 102 may transmit data using the corresponding multipath data transmission algorithm if the h data field is one.

Figure 13 is a signal flow diagram between devices for multipath configuration in accordance with various embodiments of the present invention. In the embodiment of Fig. 13, the first electronic device 101 and the second electronic device 102 are examples of desiring to transmit and receive data using an algorithm when the h data field of the multipath data transmission algorithm is 1 do.

13, for the connection between the first electronic device 101 and the second electronic device 102 supporting MPTCP in operations 1310 through 1330, the first electronic device 101 and the second electronic device 102 102 may proceed with the initial connection establishment procedure by exchanging SYN, SYN / ACK, and ACK messages including the MP_CAPABLE parameter.

Thereafter, at operation 1340, the first electronic device 101 may send a SYN message containing the MP_JOIN parameter to the second electronic device 102 to add a new subflow to the initial connection establishment. According to various embodiments of the present invention, the MP_JOIN parameter may include multipath data transmission algorithm related information (F = 0, h = 1, l = 0) that the first electronic device 101 desires to use have. In the following embodiments, it is described that the information related to the multipath data transmission algorithm is included in the MP_JOIN parameter and is transmitted. However, the embodiments of the present invention are not limited thereto, but may be added as separate information from the MP_JOIN parameter Lt; / RTI >

The second electronic device 102 receives the algorithm related information (F = 0, h = 1, l = 0) transmitted from the first electronic device 101 and the information The multipath data transmission algorithm to be used between the two electronic devices can be selected by combining the information related to the multipath data transmission algorithm (F = 0, h = 1, l = 0).

In the case of the embodiment of FIG. 13, since the multipath data transmission algorithms desired by the first electronic device 101 and the second electronic device 102 are the same, an algorithm when the h data field is 1 is used You can decide. The second electronic device 102 may include in the MPJOIN parameter the multipath data transmission algorithm related information (F = 0, h = 1, l = 0) determined to be used for data transmission with the first electronic device 101 And may transmit a SYN / ACK message containing the information to the first electronic device 101 at operation 1350.

At operation 1360, the first electronic device 101 accepts the connection, since the same type of algorithm as the algorithm of its desired type has been selected, and sets the MP_JOIN parameter in the ACK message to send to the second electronic device 102 An additional sub-flow setting procedure can be performed. After the connection is established, the first electronic device 101 and the second electronic device 102 may transmit data using the corresponding multipath data transmission algorithm if the h data field is one.

Hereinafter, various embodiments for selecting data and transmitting data by a user or application according to various embodiments of the present invention will be described with reference to FIGS. 14 to 24.

14 is a flow diagram illustrating a procedure for establishing a transport connection in an electronic device according to various embodiments of the present invention. Referring to FIG. 14, an example will be described in which a specific multi-path data transmission algorithm is set for each application, and data is transmitted and received by applying the corresponding multi-path data transmission algorithm set when the corresponding application is executed. The procedure for setting up the multi-path data transmission algorithm may be omitted according to various embodiments of the present invention.

In operation 1401, when an application is executed in the electronic device, data transfer may be requested in operation 1403 according to the execution of the application.

In operation 1405, network information (for example, information related to multipath data transmission algorithm) set in response to the executed application is confirmed, and in operation 1407, data can be transmitted and received in a transmission mode according to the confirmed network information.

At least one of the operations shown in FIG. 14 may be omitted, and at least one other operation may be added between the operations. 14 may be processed in the order shown, and the execution order for at least one operation may be changed and processed in accordance with the execution order of the other operations.

15 is a diagram illustrating an operational flow in an electronic device according to various embodiments of the present invention. Referring to FIG. 15, in order to transfer data in the application 1510, a data transfer may be requested using the XX_Socket API 1520 provided by the middleware (for example, the framework 1530). The framework 1530 including at least one library 1531 accesses the kernel 1550 in consideration of information received from the application 1510 and application-specific multipath data transmission algorithm information 1532 set by the user The Socket (...) API 1540 can be used to request data transfer. The kernel 1550 may forward the information to a module providing a multipath transmission function such as MPTCP. In a module that provides a multi-path transmission function, a multi-path connection is established with an electronic device to be connected using a set multi-path data transmission algorithm, and data can be transmitted / received through the multi-path connection.

16 is a diagram illustrating the operational flow within an electronic device according to various embodiments of the present invention. Referring to FIG. 16, an application 1610 may request a data transfer using the XX_Socket API 1620 provided by a framework 1630 for data transfer. The framework 1630 may request data transmission using the Socket (...) API 1670 in the kernel 1680 in consideration of the information received from the application 1610. [

According to various embodiments of the present invention, the Socket (...) API 1640 requested to be sent from the framework 1630 to the kernel 1680 may be hooked (1660) It is possible to request data transmission using the Socket (...) API 1670 to the kernel 1680 in consideration of the application-specific multi-path data transmission algorithm information 1650. [ The kernel 1680 may forward the information to a module providing a multipath transmission function such as MPTCP. In a module that provides a multi-path transmission function, a multi-path connection is established with an electronic device to be connected using a set multi-path data transmission algorithm, and data can be transmitted / received through the multi-path connection.

17 is a diagram illustrating an operational flow in an electronic device according to various embodiments of the present invention. Referring to FIG. 17, the application 1710 may request data transmission using the XX_Socket API 1720 provided by the framework 1730 in order to transfer data. The framework 1730 may request data transmission using the Socket API 1740 in the kernel 1750 using the information received from the application 1710.

According to various embodiments of the present invention, the kernel 1750 may transmit transmission request information received from the framework 1730 in consideration of application-specific multi-path data transmission algorithm information 1751 set by the user, (1752) to the module providing the transmission function. In a module that provides a multi-path transmission function, a multi-path connection is established with an electronic device to be connected using a set multi-path data transmission algorithm, and data can be transmitted / received through the multi-path connection.

18A is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention. 18A is an example of enabling a multipath data transmission algorithm to be commonly used in all applications installed in an electronic device in a setting screen 1800 of an electronic device according to various embodiments of the present invention.

Referring to FIG. 18A, for example, a user may prefer to use a FULL algorithm 1810 for transmitting data using both Wifi and a cellular network through the setting screen 1800, If it is not, the user can select between the BACKUP algorithm 1820 that switches to a cellular network with good data transmission. Also, according to various embodiments, the data transmission function using the multi-path may be turned off (1830).

18B is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention. FIG. 18B is an example of how to set (1850) a different multipath data transmission algorithm for each application 1840 in the configuration screen of an electronic device according to various embodiments of the present invention.

Referring to FIG. 18B, for example, when a user transmits data using a WIFI and a FULL algorithm 1810 for transmitting data using both the Wifi and the cellular network through the setting screen, if the data transmission is not smooth And a BACKUP algorithm 1820 that switches to a cellular network with good data transmission. Also, according to various embodiments, the data transmission function using multiple paths may be turned off 1830 for each application.

19 is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention. Referring to FIG. 19, in accordance with various embodiments of the present invention, a user may set whether to transmit data using multipath in the setting screen 1900 of the electronic device.

And may select an algorithm to be used for data transmission if the data is to be transmitted (1910) using multipath in accordance with various embodiments of the present invention. If the multi-path data transmission algorithm setting menu 1920 is selected, a multi-path data transmission algorithm to be commonly applied to all applications may be selected as shown in FIG. 18A. Alternatively, as shown in FIG. 18B, And may select a multipath data transmission algorithm.

20 is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention.

As described above, if the data transmission is not smooth while data is transmitted using Wifi preferentially, in the case of an algorithm for transmitting data by switching to a cellular network having good data transmission, the service disconnection time , The amount of data transmission using a cellular network, and the like. According to the algorithm, a multipath data transmission algorithm having the same or similar operating characteristics can be used between the electronic devices that send and receive data.

In the embodiment shown in FIG. 20, the HIGH algorithm 2010 in which data is transmitted / received preferentially using Wifi, and data transmission is somewhat improved, and is quickly switched to the cellular network when the first condition is satisfied, and Wifi And the LOW algorithm 2020 is switched to the cellular network when the second condition is satisfied when data transmission is much worse when data is transmitted or received using the LOW algorithm. In the above embodiment, a HIGH or LOW algorithm may be set for each application, and a data transmission function using multi-paths may be turned off (2030).

21 is a diagram showing an algorithm setting screen in an electronic device according to various embodiments of the present invention. 21, when an application supporting multi-path data transfer function and an unsupported legacy application are mixed according to various embodiments of the present invention, Screen 2100 is an example.

It is assumed that the Browser application 2120, the Chat application 2040 and the VOD 2050 application support the multipath data transfer function and the Game1 application 2160, the Game2 application 2070, and the Weather application 2180 are multi It can be assumed that it is a legacy application that does not support the path data transfer function. According to various embodiments, whether or not the multi-path data transmission algorithm for each application is supported may be set to a default value by a developer when an application is developed.

The user can determine, through an override menu 2110, whether to use an algorithm set by the application or an algorithm set by the user for an application supporting the multipath data transmission function. In accordance with various embodiments of the present invention, in FIG. 21, the Browser application 2120 may be enabled to use an algorithm set in the application. In this case, the algorithm selection menu by the user may be deactivated (2130).

The Chat application 2140 and the VOD application 2150 can ignore the algorithm set in the application and use the algorithm set by the user separately. In the case of legacy applications that do not support multipath data transfer algorithms such as Game1 application 2160, Game2 application 2170, Weather application 2180, the override 2110 selection menu may be deactivated.

22 is a view showing a data usage history screen in an electronic device according to various embodiments of the present invention. Referring to FIG. 22, a user may provide a screen 2200 that provides relevant information in selecting a multipath data transmission algorithm.

According to various embodiments of the present invention, when each application is selected on the setting screen described above with reference to FIG. 18B and period information is input, the total data information 2220 used by the application 2210 for a given period of time, Information 2230, data information 2240 used using the cellular network, and data information 2250 used through the multipath transmission function, respectively. The user can decide which multi-path data transmission algorithm to choose for the application, taking into account the total data information and his data plan.

23 is a diagram illustrating an operational flow within an electronic device according to various embodiments of the present invention. 23 is a flowchart illustrating a method for setting up a multi-path data transmission algorithm (e.g., HIGH) in which a user uses Wi-Fi and a cellular network simultaneously for a legacy application (e.g., Game 2) Is an example of the operation in one case.

Referring to FIG. 23, data transmission may be requested using an XX_Socket API 2320 provided by a framework 2330 for data transmission in an application (Game 2) 2310. The framework 2330 including at least one library 2331 considers the information received from the application (Game2) 2310 and the application-specific multipath data transmission algorithm information 2332 (QoS = HIGH) The kernel 2350 may request the data transfer using the Socket (mptcp, algo_high, ...) API 2340. [ The kernel 2350 may forward the information to a module providing a multipath transmission function such as MPTCP. In a module that provides a multi-path transmission function, a multi-path connection is established with an electronic device to be connected using a set multi-path data transmission algorithm, and data can be transmitted / received through the multi-path connection.

24 is a diagram illustrating an operational flow within an electronic device according to various embodiments of the present invention. FIG. 24 shows a case where an algorithm (for example, HIGH) set in the application is ignored for an application (e.g., VOD) supporting the multipath data transmission function and the algorithm is set to use a separately set algorithm Fig.

Referring to FIG. 24, in order to transmit data in an application (VOD) 2410, a data transmission is requested using an API 2420 of XX_Socket (mptcp, algo_high, ...) provided by a framework 2430 . The framework 2430 including at least one library 2431 ignores the information received from the application (VOD) 2410 and transmits application-specific multipath data transmission algorithm information 2432 (Override = Yes, QoS (Mptcp, algo_low,...) API 2440 to the kernel 2450 in consideration of LOW. The kernel 2450 may forward the information to a module providing a multipath transmission function such as MPTCP. In a module that provides a multi-path transmission function, a multi-path connection is established with an electronic device to be connected using a set multi-path data transmission algorithm, and data can be transmitted / received through the multi-path connection.

25 is a block diagram 2500 of an electronic device 2501 according to various embodiments. The electronic device 2501 may include all or part of the electronic device 200 shown in Fig. 2, for example. The electronic device 2501 includes at least one application processor (AP) 2510, a communication module 2520, a SIM (subscriber identification module) card 2524, a memory 2530, a sensor module 2540, A display 2560, an interface 2570, an audio module 2580, a camera module 2591, a power management module 2595, a battery 2596, an indicator 2597, and a motor 2598 .

The AP 2510 may control a plurality of hardware or software components connected to the AP 2510 by, for example, operating an operating system or an application program, and may perform various data processing and operations. The AP 2510 may be implemented as a system on chip (SoC), for example. According to one embodiment, the AP 2510 may further include a graphics processing unit (GPU) and / or an image signal processor. The AP 2510 may include at least a portion (e.g., a cellular module 2521) of the components shown in FIG. The AP 2510 loads or processes commands or data received from at least one of the other components (e.g., non-volatile memory) into the volatile memory and stores the various data in the non-volatile memory .

The communication module 2520 includes a cellular module 2521, a WIFI module 2523, a BT module 2525, a GPS module 2527, an NFC module 2528, and a radio frequency (RF) module 2529 ).

The cellular module 2521 may provide a voice call, a video call, a text service, or an Internet service, for example, through a communication network. According to one embodiment, the cellular module 2521 may utilize a subscriber identity module (e.g., a SIM card 2524) to perform the identification and authentication of the electronic device 2501 within the communication network. According to one embodiment, the cellular module 2521 may perform at least some of the functions that the AP 2510 can provide. According to one embodiment, the cellular module 2521 may include a communication processor (CP).

Each of the WIFI module 2523, the BT module 2525, the GPS module 2527 or the NFC module 2528 includes a processor for processing data transmitted and received through a corresponding module . According to some embodiments, at least some (e.g., two or more) of the cellular module 2521, the WIFI module 2523, the BT module 2525, the GPS module 2527, or the NFC module 2528, (IC) or an IC package.

The RF module 2529 can transmit and receive a communication signal (e.g., an RF signal), for example. The RF module 2529 may include, for example, a transceiver, a power amplifier module (PAM), a frequency filter, a low noise amplifier (LNA), or an antenna. According to another embodiment, at least one of the cellular module 2521, the WIFI module 2523, the BT module 2525, the GPS module 2527 or the NFC module 2528 transmits and receives RF signals through separate RF modules .

The SIM card 2524 may include, for example, a card containing a subscriber identity module and / or an embedded SIM and may include unique identification information (e.g., an integrated circuit card identifier (ICCID) Subscriber information (e.g., international mobile subscriber identity (IMSI)).

The memory 2530 (e.g., the storage unit 220) may include, for example, an internal memory 2532 or an external memory 2534. [ The built-in memory 2532 may be a volatile memory such as a dynamic RAM, an SRAM or a synchronous dynamic RAM (SDRAM), a non-volatile memory : Programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EEPROM), mask ROM, flash ROM, flash memory (e.g., NAND flash or NOR flash) , A hard drive, or a solid state drive (SSD).

The external memory 2534 may be a flash drive, for example, a compact flash (CF), a secure digital (SD), a micro secure digital (SD) extreme digital), a memory stick, or the like. The external memory 2534 may be functionally and / or physically connected to the electronic device 2501 through various interfaces.

The sensor module 2540 may, for example, measure a physical quantity or sense an operating state of the electronic device 2501, and convert the measured or sensed information into an electrical signal. The sensor module 2540 includes a gesture sensor 2540A, a gyro sensor 2540B, an air pressure sensor 2540C, a magnetic sensor 2540D, an acceleration sensor 2540E, a grip sensor 2540F, A light sensor 2540G, a light sensor 2540G, a color sensor (e.g., an RGB (red, green, blue) sensor 2540H), a living body sensor 2540I, violet sensor 2540M. Additionally or alternatively, the sensor module 2540 can be, for example, an E-nose sensor, an EMG sensor, an electroencephalogram sensor, an electrocardiogram sensor, an IR infrared sensor, an iris sensor, and / or a fingerprint sensor. The sensor module 2540 may further include a control circuit for controlling at least one sensor included in the sensor module 2540. In some embodiments, the electronic device 2501 further includes a processor configured to control the sensor module 2540, either as part of the AP 2510 or separately, such that during the time the AP 2510 is in a sleep state , And the sensor module 2540 can be controlled.

The input device 2550 may include, for example, a touch panel 2552, a (digital) pen sensor 2554, a key 2556, or an ultrasonic input device (2558). The touch panel 2552 may employ, for example, at least one of an electrostatic type, a pressure sensitive type, an infrared type, and an ultrasonic type. In addition, the touch panel 2552 may further include a control circuit. The touch panel 2552 may further include a tactile layer to provide a tactile response to the user.

The (digital) pen sensor 2554 may be, for example, part of a touch panel or may include a separate recognition sheet. The key 2556 may include, for example, a physical button, an optical key, or a keypad. The ultrasonic input device 2558 can sense data by sensing sound waves from the electronic device 2501 to a microphone (e.g., a microphone 2588) through an input tool for generating an ultrasonic signal.

The display 2560 may include a panel 2562, a hologram device 2564, or a projector 2566. The panel 2562 can be embodied, for example, flexible, transparent, or wearable. The panel 2562 may be composed of one module with the touch panel 2552. [ The hologram device 2564 can display stereoscopic images in the air using interference of light. The projector 2566 can display an image by projecting light onto a screen. The screen may be located, for example, inside or outside the electronic device 2501. According to one embodiment, the display 2560 may further include control circuitry for controlling the panel 2562, the hologram device 2564, or the projector 2566.

The interface 2570 may include, for example, a high-definition multimedia interface (HDMI) 2572, a universal serial bus (USB) 2574, an optical interface 2576, or a D- subminiature (2578). Additionally or alternatively, the interface 2570 may be implemented using a mobile high-definition link (MHL) interface, a secure digital (SD) card / multi-media card (MMC) Standard interface.

The audio module 2580 can, for example, convert sound and electrical signals in both directions. The audio module 2580 may process sound information input or output through, for example, a speaker 2582, a receiver 2584, an earphone 2586, a microphone 2588, or the like.

According to one embodiment, the camera module 2591 is a device capable of capturing a still image and a moving image, for example, one or more image sensors (e.g., a front sensor or a rear sensor), a lens, an image signal processor ), Or a flash (e.g., LED or xenon lamp).

The power management module 2595 can manage the power of the electronic device 2501, for example. According to one embodiment, the power management module 2595 may include a power management integrated circuit (PMIC), a charger integrated circuit (PMIC), or a battery or fuel gauge. The PMIC may have a wired and / or wireless charging scheme. The wireless charging scheme may include, for example, a magnetic resonance scheme, a magnetic induction scheme, or an electromagnetic wave scheme, and may further include an additional circuit for wireless charging, for example, a coil loop, a resonant circuit, have. The battery gauge can measure the remaining amount of the battery 2596, the voltage during charging, the current, or the temperature, for example. The battery 2596 may include, for example, a rechargeable battery and / or a solar battery.

The indicator 2597 may indicate a specific state of the electronic device 2501 or a part thereof (e.g., AP 2510), for example, a boot state, a message state, or a charged state. The motor 2598 can convert the electrical signal into mechanical vibration, and can generate vibration, haptic effect, or the like. Although not shown, the electronic device 2501 may include a processing unit (e.g., a GPU) for mobile TV support. The processing device for supporting the mobile TV can process media data conforming to standards such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or media flow.

Each of the above-described components of the electronic device may be composed of one or more components, and the name of the component may be changed according to the type of the electronic device. In various embodiments, the electronic device may be configured to include at least one of the components described above, with some components omitted or further comprising additional other components. In addition, some of the components of the electronic device according to various embodiments may be combined into one entity, so that the functions of the components before being combined can be performed in the same manner.

26 is a block diagram 2600 of a program module 2610 according to various embodiments. According to one embodiment, the program module 2610 may include an operating system (OS) that controls resources associated with the electronic device and / or various applications (e.g., application programs) running on the operating system have. The operating system may be, for example, android, iOS, windows, symbian, tizen, or bada.

The program module 2610 may include a kernel 2620, a middleware 2630, an application programming interface (API) 2660, and / or an application 2670. At least a portion of the program module 2610 may be preloaded on an electronic device or downloaded from a server.

The kernel 2620 may include, for example, a system resource manager 2621 or a device driver 2623. [ The system resource manager 2621 can perform control, assignment, or recovery of system resources. According to one embodiment, the system resource manager 2621 may include a process management unit, a memory management unit, or a file system management unit. The device driver 2623 may include, for example, a display driver, a camera driver, a Bluetooth driver, a shared memory driver, a USB driver, a keypad driver, a WIFI driver, an audio driver, or an inter- have.

The middleware 2630 may provide the functionality commonly required by the application 2670 or may be provided by the API 2660 to allow the application 2670 to efficiently use limited system resources within the electronic device. To provide various functions to the application 2670. According to one embodiment, the middleware 2630 includes a runtime library 2635, an application manager 2641, a window manager 2642, a multimedia manager 2643, a resource manager 2644, a power manager 2645, a database manager 2646, a package manager 2647, a connectivity manager 2648, a notification manager 2649, a location manager 2650, a graphic manager 2651, or a security manager 2652.

The runtime library 2635 may include, for example, a library module used by the compiler to add new functionality via a programming language while the application 2670 is running. The runtime library 2635 may perform input / output management, memory management, or functions for arithmetic functions.

The application manager 2641 may manage the life cycle of at least one of the applications 2670, for example. The window manager 2642 can manage GUI resources used in the screen. The multimedia manager 2643 can recognize a format required for playing various media files and can encode or decode a media file using a codec suitable for the format. The resource manager 2644 can manage resources such as a source code, a memory, or a storage space of at least one of the applications 2670.

The power manager 2645 may operate with a basic input / output system (BIOS), for example, to manage a battery or a power source, and may provide power information and the like necessary for operation of the electronic device . The database manager 2646 may create, search, or modify a database for use by at least one of the applications 2670. The package manager 2647 can manage installation or update of an application distributed in the form of a package file.

The connection manager 2648 may manage wireless connections, such as WIFI or Bluetooth, for example. The notification manager 2649 may display or notify events such as arrival messages, appointments, proximity notifications, etc. in a manner that does not interfere with the user. The location manager 2650 may manage location information of the electronic device. The graphic manager 2651 may manage a graphical effect to be provided to the user or a user interface related thereto. The security manager 2652 may provide security functions necessary for system security or user authentication. According to one embodiment, if the electronic device (e.g., the electronic device of FIG. 8) includes a telephone function, the middleware 2630 may include a telephony manager for managing the voice or video call capabilities of the electronic device .

The middleware 2630 may include a middleware module that forms a combination of various functions of the above-described components. The middleware 2630 may provide a module specialized for each type of operating system to provide a differentiated function. In addition, the middleware 2630 may dynamically delete some existing components or add new components.

The API 2660 may be provided in a different configuration depending on the operating system, for example, as a set of API programming functions. For example, for Android or iOS, you can provide one API set per platform, and for tizen, you can provide more than two API sets per platform.

The application 2670 may include a home 2671, a dialer 2672, an SMS / MMS 2673, an instant message 2674, a browser 2675, a camera 2676, an alarm 2677 ), Contact 2678, voice dial 2679, email 2680, calendar 2681, media player 2682, album 2683 or clock 2684, health care (e.g., Or providing information on the environment (e.g., providing atmospheric pressure, humidity, or temperature information, etc.), and the like.

According to one embodiment, the application 2670 includes an application (e. G., An " information exchange application ") for supporting the exchange of information between the electronic device . The information exchange application may include, for example, a notification relay application for communicating specific information to the external electronic device, or a device management application for managing the external electronic device .

For example, the notification delivery application may include a function of transmitting notification information generated by another application (e.g., SMS / MMS application, email application, healthcare application, or environment information application) of the electronic device to an external electronic device . In addition, the notification delivery application may receive notification information from, for example, an external electronic device and provide the notification information to the user. The device management application may, for example, control the operation of at least one function of the external electronic device communicating with the electronic device (e.g., turn-on / turn-off of the external electronic device itself (E.g., install, delete, or update) an application running on the external electronic device or a service (e.g., call service or message service) provided on the external electronic device.

According to one embodiment, the application 2670 includes an application (e.g., a healthcare application) designated according to an attribute of the external electronic device (e.g., an attribute of the electronic device, the type of electronic device is a mobile medical device) . According to one embodiment, the application 2670 may include an application received from an external electronic device. According to one embodiment, the application 2670 may include a preloaded application or a third party application downloadable from a server. The names of the components of the program module 2610 according to the illustrated embodiment may vary depending on the type of the operating system.

According to various embodiments, at least some of the program modules 2610 may be implemented in software, firmware, hardware, or a combination of at least two of them. At least some of the program modules 1710 may be implemented (e.g., executed) by, for example, a processor (e.g., AP 2510). At least some of the program modules 2610 may include, for example, modules, programs, routines, sets of instructions or processes, etc. to perform one or more functions.

The term "module" or "function, " as used herein, may refer to a unit that includes one or a combination of two or more of, for example, hardware, software or firmware. The term "module" or "functional part" is used interchangeably with terms such as, for example, unit, logic, logical block, component, ). A "module" or "function" may be a minimum unit or a part of an integrally constructed component. A "module" may be a minimum unit or a portion thereof that performs one or more functions. "Modules" or "functional parts" may be implemented mechanically or electronically. For example, a "module" or "function" may be an application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs) or programmable logic arrays (FPGAs) -logic device).

At least a portion of a device (e.g., modules or functions thereof) or a method (e.g., operations) according to various embodiments may include, for example, computer-readable storage media in the form of program modules, As shown in FIG. When executed by a processor (e.g., controller 210), the instructions may perform the functions corresponding to the instructions. The computer-readable storage medium may be, for example, the storage unit 220.

The computer readable recording medium may be a hard disk, a floppy disk, a magnetic media (e.g., a magnetic tape), an optical media (e.g., a compact disc read only memory (CD-ROM) but are not limited to, digital versatile discs, magneto-optical media such as floptical discs, hardware devices such as read only memory (ROM), random access memory (RAM) Etc.), etc. The program instructions may also include machine language code such as those produced by a compiler, as well as high-level language code that may be executed by a computer using an interpreter, etc. The above- May be configured to operate as one or more software modules to perform the operations of the various embodiments, and vice versa.

Modules or program modules according to various embodiments may include at least one or more of the elements described above, some of which may be omitted, or may further include additional other elements. Operations performed by modules, program modules, or other components in accordance with various embodiments may be performed in a sequential, parallel, iterative, or heuristic manner. Also, some operations may be performed in a different order, omitted, or other operations may be added.

According to various embodiments, there is provided a storage medium storing instructions which, when executed by at least one processor, cause the at least one processor to be configured to perform at least one operation, , When establishing a data transfer connection with another electronic device, for use in transmission of data with the other of the plurality of multipath data transmission algorithms based on information associated with at least one multipath data transmission algorithm transmitted or received Determining an algorithm for multipath data transmission; And transmitting or receiving data according to the determined multipath data transmission algorithm.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And the like. Accordingly, the scope of various embodiments of the present invention should be construed as being included in the scope of various embodiments of the present invention without departing from the scope of the present invention, all changes or modifications derived from the technical idea of various embodiments of the present invention .

101, 102: electronic device 110: network
200: electronic device 210: control unit
211: algorithm setting unit 212: transmission connection setting unit
213: algorithm determining unit 214: transmission /
220: storage unit 221: application
222: API 223: Middleware
224: Kernel 230:
240:

Claims (20)

A communication unit for transmitting and receiving data; And
Path data transmission algorithm based on information related to at least one multi-path data transmission algorithm transmitted or received through the communication unit when establishing a data transfer connection with another electronic device, And a control unit for determining a multipath data transmission algorithm to be used for transmission and controlling transmission or reception of data according to the determined multipath data transmission algorithm.
2. The method of claim 1, wherein the multi-
An algorithm for simultaneously using a plurality of communication methods, an algorithm for switching to and using a second communication method when a first condition set in advance during use by the first communication method among the plurality of communication methods is satisfied, 1 algorithm is switched to a second communication mode when a predetermined second condition is satisfied during use by the first communication mode, and a second communication mode is switched from a first communication mode to a second communication mode among a plurality of communication modes, 3 < / RTI > condition is met, the method further comprises switching back to the first communication mode and using at least one of the algorithms.
3. The electronic device of claim 2, wherein the first condition has a different criterion than the second condition.
The communication system according to claim 2,
WIFI, Bluetooth, NFC, GPS, LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro, GSM, universal serial bus (high definition multimedia interface), RS-232 (recommended standard 232), or plain old telephone service (POTS).
2. The method of claim 1, wherein the information associated with the at least one multi-
Characterized in that the electronic device is transmitted or received when establishing an initial connection with the other electronic device.
6. The method of claim 5,
And is set by a transmission control protocol (TCP) protocol.
2. The method of claim 1, wherein the information associated with the at least one multi-
Characterized in that after the initial connection establishment with the other electronic device, it is transmitted or received in the setting of an additional sub-flow for multi-path connection establishment.
8. The method of claim 7, wherein the additional sub-
A multipath transmission control protocol (MPTCP) protocol, and a stream control transmission protocol (SCTP).
The electronic device according to claim 1,
And a display unit for displaying a setting screen for the multi-path data transmission algorithm.
2. The method of claim 1, wherein the multi-
Wherein the electronic device is capable of setting a different algorithm for each of a plurality of applications installed in the electronic device.
A method of transmitting data using multipath in an electronic device,
A plurality of multi-path data transmission algorithms, based on information associated with at least one multi-path data transmission algorithm transmitted or received, in establishing a data transmission connection with another electronic device, Determining a path data transmission algorithm; And
And transmitting or receiving data according to the determined multipath data transmission algorithm.
12. The method of claim 11, wherein the multipath data transmission algorithm comprises:
An algorithm for simultaneously using a plurality of communication methods, an algorithm for switching to and using a second communication method when a first condition set in advance during use by the first communication method among the plurality of communication methods is satisfied, 1 algorithm is switched to a second communication mode when a predetermined second condition is satisfied during use by the first communication mode, and a second communication mode is switched from a first communication mode to a second communication mode among a plurality of communication modes, 3 < / RTI > condition is met, the method further comprises switching to a first communication mode and using the at least one algorithm.
13. The method of claim 12, wherein the first condition has a different criterion than the second condition.
13. The communication method according to claim 12,
WIFI, Bluetooth, NFC, GPS, LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro, GSM, universal serial bus , a high definition multimedia interface (RS-232), a recommended standard (RS-232) or a plain old telephone service (POTS).
12. The method of claim 11, wherein the information associated with the at least one multi-
Wherein the data is transmitted or received when establishing an initial connection with the other electronic device.
16. The method of claim 15,
A transmission control protocol (TCP) protocol, and a stream control transmission protocol (SCTP).
12. The method of claim 11, wherein the information associated with the at least one multi-
Characterized in that, after the initial connection establishment with the other electronic device, the transmission or reception is performed in the setting of the additional sub-flow for the multi-path connection setting.
18. The method of claim 17, wherein the additional sub-
A multipath transmission control protocol (MPTCP) protocol, and a stream control transmission protocol (SCTP).
12. The method of claim 11,
And setting the multi-path data transmission algorithm.
12. The method of claim 11, wherein the multipath data transmission algorithm comprises:
And setting a different algorithm for each of a plurality of applications installed in the electronic device.

Images