US20230121465A1 - Method for transmission data and apparatus for executing the method - Google Patents

Abstract

A computing device according to an embodiment includes one or more processors, a memory in which one or more programs to be executed by the one or more processors are stored, a network information manager configured to transmit a peer-to-peer (P2P) network information of the computing device and network quality information at the time of connection of the computing device to a management server, and a network monitor configured to generate network quality information by measuring a network quality at the time of connection of the computing device.

Description

CROSS-REFERENCE TO RELATED APPLICATION (S) AND CLAIM OF PRIORITY
• This application is a divisional application of U.S. patent application Ser. No. 16/886,138, filed May 28, 2020, which claims priority to Korean Patent Application No. 10-2019-0062472, filed on May 28, 2019, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.
BACKGROUND1. Field
• Disclosed embodiments are related to data transmission technology.
2. Description of Related Art
• A video conferencing service makes it possible to share data in a similar manner to a physical conference by displaying images transmitted and received by a plurality of participants on a screen of each participant. In the existing video conferencing service, when multiple participants exist in the video conference, a peer-to-peer (P2P) connection is randomly attempted between the participants, and data is shared through a P2P network when the connection is successful. That is, data (such as video and audio) is shared through P2P connection regardless of a network quality between the participants, and thus a problem occurs in that the quality of video or audio deteriorates when the amount of data exceeds an available network bandwidth.
SUMMARY
• This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
• The disclosed embodiments are intended to provide a data transmission method and an apparatus for performing the method, which can prevent deterioration in data quality during data transmission.
• In an embodiment, there is provided a data transmission method, which is performed by a computing device including one or more processors and a memory in which one or more programs to be executed by the one or more processors are stored, including receiving, from connected client devices, peer-to-peer (P2P) network information of the client devices, extracting one or more of information on whether network access is successful and network quality information, which are matched with the P2P network information and pre-stored, and determining one of a first data transmission path and a second data transmission path as a data transmission path for the client devices based on one or more of the information on whether network access is successful and the network quality information.
• The first data transmission path may be a path that transmits data from one client device to another client device via the computing device and the second data transmission path may be a path that transmits data from one client device to another client device through a P2P connection.
• The determining of the data transmission path may include checking whether a network access success rate between each of the client devices is less than a preset reference value based on the information on whether network access is successful and determining the first data transmission path as the data transmission path for the corresponding client devices when the network access success rate between the corresponding client devices is less than the preset reference value.
• The determining of the data transmission path may include checking whether a network access success rate between each of the client devices is greater than or equal to a preset reference value based on the information on whether network access is successful, extracting network quality information pre-stored for corresponding client devices when the network access success rate between the corresponding client devices is greater than or equal to the preset reference value, and determining one of the first data transmission path and the second data transmission path as the data transmission path for the corresponding client devices based on the extracted network quality information.
• The determining of the data transmission path may include checking from the extracted network quality information whether a network quality by the first data transmission path between the corresponding client devices is superior to a network quality by the second data transmission path and determining the first data transmission path as the data transmission path for the corresponding client devices when the network quality by the first data transmission path is superior to the network quality by the second data transmission path.
• The data transmission method may further include, when the network quality by the first data transmission path is not superior to the network quality by the second data transmission path, determining the second data transmission path as the data transmission path for the corresponding client devices, and transmitting P2P network information of a peer device to the corresponding client devices.
• In another embodiment, there is provided a computing device including one or more processors, a memory, and one or more programs, wherein the one or more programs are configured to be stored in the memory and to be executed by the one or more processors and the one or more programs include instructions for receiving, from connected client devices, peer-to-peer (P2P) network information of the client devices, extracting one or more of information on whether network access is successful and network quality information, which are matched with the P2P network information and pre-stored, and determining one of a first data transmission path and a second data transmission path as a data transmission path for the client devices based on one or more of the information on whether network access is successful and the network quality information.
• The first data transmission path may be a path that transmits data from one client device to another client device via the computing device and the second data transmission path may be a path that transmits data from one client device to another client device through a P2P connection.
• The instruction for determining the data transmission path may include instructions for checking whether a network access success rate between each of the client devices is less than a preset reference value based on the information on whether network access is successful and determining the first data transmission path as the data transmission path for the corresponding client devices when the network access success rate between the corresponding client devices is less than the preset reference value.
• The instruction for determining the data transmission path may include instructions for checking whether a network access success rate between each of the client devices is greater than or equal to a preset reference value based on the information on whether network access is successful, extracting network quality information pre-stored for corresponding client devices when the network access success rate between the corresponding client devices is greater than or equal to the preset reference value, and determining one of the first data transmission path and the second data transmission path as the data transmission path for the corresponding client devices based on the extracted network quality information.
• The instruction for determining the data transmission path may include instructions for checking from the extracted network quality information whether a network quality by the first data transmission path between the corresponding client devices is superior to a network quality by the second data transmission path and determining the first data transmission path as the data transmission path for the corresponding client devices when the network quality by the first data transmission path is superior to the network quality by the second data transmission path.
• The one or more programs may further include instructions for, when the network quality by the first data transmission path is not superior to the network quality by the second data transmission path, determining the second data transmission path as the data transmission path for the corresponding client devices, and transmitting P2P network information of a peer device to the corresponding client devices.
• In still another embodiment, there is provided a computing device including one or more processors, a memory in which one or more programs to be executed by the one or more processors are stored, a network information manager configured to transmit a peer-to-peer (P2P) network information of the computing device and network quality information at the time of connection of the computing device to a management server, and a network monitor configured to generate network quality information by measuring a network quality at the time of connection of the computing device.
• The P2P network information may include one or more of a user identification (ID) of the computing device, private IP and port information, public IP and port information, and network identification information and the network information manager may include a first network information manager configured to transmit the P2P network information of the computing device to the management server and a second network information manager configured to transmit the network quality information at the time of connection of the computing device to the management server.
• The network monitor may include a first monitor configured to, when the computing device is connected to the management server, generate network quality information by measuring a quality of a network between the computing device and the management server and a second monitor configured to, when the computing device makes a P2P connection to another client device, generate network quality information by measuring a quality of a network between the computing device and the other client device.
• The first network information manager may transmit information on whether network access for the P2P connection is successful to the management server when the computing device makes a P2P connection to another client device.
• In still another embodiment, there is provided a data transmission method, which is performed by a computing device including one or more processors and a memory in which one or more programs to be executed by the one or more processors are stored, including acquiring peer-to-peer (P2P) network information of the computing device, transmitting the P2P network information of the computing device to a management server, generating network quality information by measuring a network quality at the time of connection of the computing device, and transmitting the network quality information to the management server.
• The generating of the network quality information may include, when the computing device is connected to the management server, generating the network quality information by measuring a quality of a network between the computing device and the management server and, when the computing device makes a P2P connection to another client device, generating the network quality information by measuring a quality of a network between the computing device and the other client device.
• The data transmission method may further include, when the computing device makes a P2P connection to another client device, transmitting information on whether network access for the P2P connection is successful to the management server.
• Other features and aspects will be apparent from the following detailed description, the drawings, and the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
• FIG.1 is a diagram illustrating a configuration of a data transmission system according to one embodiment of the present disclosure.
• FIG.2 is a block diagram illustrating a configuration of a client device according to one embodiment of the present disclosure.
• FIG.3 is a flowchart illustrating a data transmission method according to one embodiment of the present disclosure.
• FIG.4 is a flowchart illustrating a data transmission method according to another embodiment of the present disclosure.
• FIG.5 is a block diagram for describing an example of a computing environment including a computing device suitable for use in exemplary embodiments.
• Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals will be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience.
DETAILED DESCRIPTION
• The following description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. Accordingly, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be suggested to those of ordinary skill in the art.
• Descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness. Also, terms described in below are selected by considering functions in the embodiment and meanings may vary depending on, for example, a user or operator's intentions or customs. Therefore, definitions of the terms should be made based on the overall context. The terminology used in the detailed description is provided only to describe embodiments of the present disclosure and not for purposes of limitation. Unless the context clearly indicates otherwise, the singular forms include the plural forms. It should be understood that the terms “comprises” or “includes” specify some features, numbers, steps, operations, elements, and/or combinations thereof when used herein, but do not preclude the presence or possibility of one or more other features, numbers, steps, operations, elements, and/or combinations thereof in addition to the description.
• In the following description, the terminology of “communication”, “transmission”, “reception” of a signal or information and terminology similar thereto may include a meaning in which a signal or information is directly transmitted from one element to another element and is transmitted from one element to another element through an intervening element. Particularly, a meaning in which a signal or information is “transmitted” or “sent” to another element may indicate a final destination of the signal or information and may not mean a direct destination. This may be equally applied with respect to a meaning of “reception” of the signal or information. Further, in this specification, a meaning in which two or more pieces of data or information are related, it may mean that at least a portion of another data (or information) may be obtained based on one data when one data (or information) is obtained.
• Further, it will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first portion could be termed a second portion, and, similarly, a second portion could be termed a first portion without departing from the teachings of the disclosure.
• FIG.1 is a diagram illustrating a configuration of a data transmission system according to one embodiment of the present disclosure.
• Referring toFIG.1, thedata transmission system100 may include aclient device102 and amanagement server104. Theclient device102 is connected to communicate with themanagement server104 through acommunication network150. In some embodiments, thecommunication network150 may include the Internet, one or more local area networks, wide area networks, cellular networks, mobile networks, and other types of networks, or a combination of these networks.
• Here, thedata transmission system100 will be described as a video conferencing service system, but the present disclosure is not limited thereto, and it is apparent that various other data transmission systems are applicable.
• Theclient device102 is a terminal of a user participating in a video conference. Theclient device102 may be a terminal provided with equipment for a video conference, such as a camera, a microphone, and a display. A plurality ofclient devices102 may be provided according to the number of users participating in the video conference. Theclient device102 may include a communication device, such as a tablet personal computer (PC), a notebook computer, a desktop PC, a smartphone, or the like.
• FIG.2 is a block diagram illustrating a configuration of theclient device102 according to one embodiment of the present disclosure. Referring toFIG.2, theclient device102 may include anaccessor111, anetwork information manager113, and anetwork monitor115.
• Theaccessor111 may be connected to themanagement server104 of theclient device102. In an exemplary embodiment, theaccessor111 may be connected to themanagement server104 according to a user instruction of theclient device102. Theaccessor111 may be connected to themanagement server104 through preset authentication process.
• Theaccessor111 may make a P2P connection to anotherclient device102. Theaccessor111 may receive P2P network information of anotherclient device102 from themanagement server104 and make a P2P connection to theother client device102 based on the received P2P network information.
• Thenetwork information manager113 may transmit the P2P network information of theclient device102 to themanagement server104. In addition, when theclient device102 is connected to themanagement server104 or anotherclient device102, thenetwork information manager113 may transmit quality information (i.e., network quality information) of a corresponding network to themanagement server104.
• Thenetwork information manager113 may include a first network information manager113-1 and a second network information manager113-2. The first network information manager113-1 may acquire P2P network information of theclient device102 and transmit the acquired P2P network information to themanagement server104. Here, the P2P network information may include a user ID of theclient device102, private IP and port information, public IP and port information, network identification information (e.g., Wi-Fi service set identifier (SSID) and basic service set identifier (BSSID)) and the like.
• Also, when theclient device102 makes a P2P connection to anotherclient device102, the first network information manager113-1 may transmit network access success information to themanagement server104. That is, each time theclient device102 makes a P2P connection, the first network information manager113-1 may transmit information on whether network access is successful or failed (network access success information) to themanagement server104.
• When theclient device102 is connected to themanagement server104, the second network information manager113-2 may acquire network quality information on the quality of the network between theclient device102 and themanagement server104 and transmit the acquired network quality information to themanagement server104.
• When theclient device102 is connected to anotherclient device102, the second network information manager113-2 may acquire network quality information on the quality of the network between theclient device102 and theother client device102 and transmit the acquired network quality information to themanagement server104.
• When theclient device102 is connected to themanagement server104 or anotherclient device102, the network monitor115 may monitor the quality of a corresponding network. The network monitor115 may measure the network quality at the time of connection of theclient device102 and generate network quality information. Here, the network quality may include a usable bandwidth, network delay rate, network packet loss rate, and the like.
• In an exemplary embodiment, the network monitor115 may measure the network packet loss rate through the following method. When a data packet is transmitted to themanagement server104 or anotherclient device102, theclient device102 may transmit the data packet by including a sequence number in the data packet. Then, themanagement server104 or theother client device102 may check loss rate of data packets based on the total number of data packets received for a predetermined period of time, the sequence number of the first data packet, and the sequence number of the last data packet.
• For example, when the sequence number of the first data packet is 1, the sequence number of the last data packet is 100, and the number of received data packets is 50, it can be seen that the loss rate of data packets of a corresponding network (i.e., network packet loss rate) is 50%. In this case, themanagement server104 or theother client device102 may transmit the network packet loss rate to theclient device102.
• In addition, the network monitor115 may measure the network delay rate through the following method. Theclient device102 may transmit a data packet including transmission time to themanagement server104 or anotherclient device102 at regular time intervals. Then, themanagement server104 or theother client device102 may calculate the network latency using an arrival time of a data packet and the transmission time included in the data packet.
• For example, if data packets transmitted from theclient device102 at 0 ms and 100 ms, respectively, arrive at 200 ms and 350 ms from themanagement server104 or anotherclient device102, the network delay rate is 50 ms. In this case, themanagement server104 or theother client device102 may transmit the network delay rate to theclient device102.
• The network monitor115 may include a first monitor115-1 and a second monitor115-2. When theclient device102 is connected to themanagement server104, the first monitor115-1 may measure the quality of a network between theclient device102 and themanagement server104. When theclient device102 is connected to anotherclient device102, the second monitor115-2 may measure the quality of a network between theclient device102 and theother client device102.
• Themanagement server104 may be a server computing device for managing data transmission between theclient devices102. In an exemplary embodiment, themanagement server104 may manage data transmission between theclient devices102 participating in a video conference during the video conference. Specifically, themanagement server104 may receive P2P network information from eachclient device102 connected to themanagement server104 and store the received P2P network information.
• Table 1 shows examples of P2P network information to be stored by themanagement server104 according to one embodiment of the present disclosure. Table 1 shows user ID, private IP and port information, public IP and port information, network identification information (e.g., Wi-Fi SSID and BSSID), and the like as P2P network information.

• 	TABLE 1
  	User	Public IP	Private IP	Wi-Fi	Wi-Fi
  	ID	& Port	& Port	SSID	BSSD	Zone

  Terminal A	UserA	1.1.1.1:1	192.168.0.2:9090	UreadyA	0a:0a:0a:0a:0a:0a	KR
  Terminal B	UserB	2.2.2.2:1	192.168.5.4:9090	None	None	US
  Terminal C	UserC	1.1.1.1:1	192.168.0.8:9090	UreadyA	0a:0a:0a:0a:0a:0a	KR

• Table 2 shows examples of information on whether network access is successful which is stored by themanagement server104 according to one embodiment of the present disclosure. When themanagement server104 receives the information on whether network access at the time of P2P connection is successful from eachclient device102, themanagement server104 may count the number of successful accesses or unsuccessful accesses according to the success or failure of network access.

• TABLE 2
  		The number of	The number of
  Src	Dst	successful accesses	unsuccessful accesses
  Terminal A	Terminal B	0	5
  Terminal A	Terminal C	5	0
  Terminal B	Terminal A	0	5
  Terminal B	Terminal C	3	0
  Terminal C	Terminal A	5	0
  Terminal C	Terminal B	3	0

• In addition, themanagement server104 may receive network quality information from eachclient device102 and store the received network quality information. Themanagement server104 may match and store P2P network information and network quality information for eachclient device102. Table 3 shows examples of network quality information of eachclient device102 stored by themanagement server104 according to one embodiment of the present disclosure.

• TABLE 3
  		Available	Avg.	Avg.
  Src	Dst	Bandwidth	Loss rate	Delay rate	RTT
  Terminal A	Terminal B	4 Mbps	2%	100 ms	200 ms
  TerminalA	Terminal C		20 Mbps	0%	5ms	10 ms
  Terminal A	Server	8 Mbps	0%	10ms	100 ms
  Terminal B	Terminal A	4 Mbps	2%	100 ms	200 ms
  TerminalB	Terminal C		10 Mbps	0%	10ms	100 ms
  Terminal B	Server	8 Mbps	0%	10ms	100 ms
  TerminalC	Terminal A		20 Mbps	0%	5ms	10 ms
  TerminalC	Terminal B		10 Mbps	0%	10ms	100 ms
  Terminal C	Server	8 Mbps	0%	10ms	100 ms

• When eachclient device102 accesses for a video conference, themanagement server104 may set a data transmission path for eachclient device102 based on pre-stored information on whether network access of eachclient device102 is successful and pre-stored network quality information of eachclient device102. In an exemplary embodiment, the data transmission path may include a first data transmission path that transmits data to anotherclient device102 via themanagement server104 and a second data transmission path that transmits data through a P2P connection with anotherclient device102.
• Themanagement server104 may determine whether the data transmission path of eachclient device102 is the first data transmission path or the second data transmission path based on pre-stored information on whether network access of eachclient device102 connected to themanagement server104 is successful and pre-stored network quality information of eachclient device102.
• Specifically, themanagement server104 checks the pre-stored information on whether network access of theclient devices102 connected to themanagement server104 is successful, and if a network access success rate is less than a preset reference value, themanagement server104 may determine that data transmission by the P2P connection is not attempted between thecorresponding client devices102.
• Themanagement server104 may check pre-stored information on whether network access is successful or unsuccessful and, forclient devices102 whose network access success rate is greater than or equal to the preset reference value, themanagement server104 may determine the first data transmission path or the second data transmission path based on pre-stored network quality information. In this case, themanagement server104 may compare the network quality by the existing first data transmission path and the network quality by the exiting second data transmission path and determine the first data transmission path or the second data transmission path.
• In the present disclosure, a module may mean a functional and structural combination of hardware for implementing the technical idea of the present invention and software for driving the hardware. For example, the “module” may mean a predetermined code and a logical unit of a hardware resource for executing the predetermined code, and does not necessarily mean a physically connected code or a one type of hardware.
• According to the disclosed embodiment, by matching and storing P2P network information and network quality information for eachclient device102, it is possible to determine which of the first data transmission path and the second data transmission path is preferable for the data transmission between theclient devices102, thereby preventing deterioration in quality during data transmission.
• FIG.3 is a flowchart illustrating a data transmission method according to one embodiment of the present disclosure. Here, a process in which a first client device102-1 and a second client device102-2 transmit P2P network information and network quality information to amanagement server104 is illustrated. In the illustrated flowchart, the method is described as being divided into a plurality of operations. However, it should be noted that at least some of the operations may be performed in different order or may be combined into fewer operations or further divided into more operations. In addition, some of the operations may be omitted, or one or more extra operations, which are not illustrated, may be added to the flowchart and be performed.
• Referring toFIG.3, the first client device102-1 and the second client device102-2 are connected to the management server104 (S101).
• Then, the first client device102-1 and the second client device102-2 request themanagement server104 for their public IP and port information (S103), and receive their Public IP and port information from the management server104 (S105).
• Then, the first client device102-1 and the second client device102-2 transmit P2P network information including user ID, private IP and port information, public IP and port information, and network identification information (e.g., Wi-Fi SSID and BSSID) to the management server104 (S107).
• Here, the first client device102-1 and the second client device102-2 may query their user ID, private IP and port information, and network identification information and include the information in the P2P network information.
• Then, themanagement server104 may transmit the P2P network information of the second client device102-2 to the first client device102-1 and transmit the P2P network information of the first client device102-1 to the second client device102-2 (S109).
• Thereafter, the first client device102-1 and the second client device102-2 make a P2P connection using each other's P2P network information (S111).
• Then, the first client device102-1 and the second client device102-2 measure network quality information at the time of the P2P connection and transmit the measured network quality information to the management server104 (S113). Also, the first client device102-1 may transmit information on whether network access at the time of P2P connection with the second client device102-2 is successful to themanagement server104.
• Meanwhile, when being connected to themanagement server104, the first client device102-1 and the second client device102-2 may measure network quality information at the time of connection to themanagement server104 and transmit the measured network quality information to themanagement server104. As such, themanagement server104 may store the network quality information of eachclient device102 at the time of P2P connection and the network quality information of eachclient device102 at the time of connection to themanagement server104.
• FIG.4 is a flowchart illustrating a data transmission method according to another embodiment of the present disclosure. Here, a process in which amanagement server104 determines a data transmission path for eachclient device102 is illustrated.
• Referring toFIG.4, themanagement server104 receives P2P network information fromclient devices102 connected to the management server104 (S201).
• Then, themanagement server104 extracts information on whether network access of theclient devices102 connected to themanagement server104 is successful based on P2P network information (S203).
• Thereafter, themanagement server104 checks whether network access success rate among each of theclient devices102 is less than a predetermined reference value based on the extracted information on whether network access is successful (S205).
• When a result of checking in operation S205 shows that the network access success rate is less than the preset reference value, themanagement server104 determines that data transmission through the P2P connection is not performed between the client devices102 (S207).
• That is, it may be determined that a second data transmission path is not used between theclient devices102 whose network access success rate is less than or equal to the preset reference value. Themanagement server104 may transmit data through a first data transmission path (i.e., a data transmission path via the management server104) to theclient devices102 whose network access success rate is less than or equal to the preset reference value.
• When a result of checking in operation S205 shows that the network access success rate is greater than or equal to the preset reference value, themanagement server104 extracts pre-stored network quality information for the corresponding client devices102 (S209).
• Then, themanagement server104 checks whether the network quality by the first data transmission path between theclient devices102 is superior to the network quality by the second data transmission path, based on the extracted network quality information (S211).
• When a result of checking in operation S211 shows that the network quality by the first data transmission path is superior to the network quality by the second data transmission path, themanagement server104 may transmit data between thecorresponding client devices102 using the first data transmission path (S213).
• For example, it is assumed that a first client device102-1, a second client device102-2, and a third client device102-3 are connected to themanagement server104 and the network access success rate among the first client device102-1 to the third client device102-3 is greater than or equal to a preset reference value.
• In this case, when the network quality by the existing first data transmission path (i.e., a data transmission path via the management server104) between the first client device102-1 and the second client device102-2 is superior to the network quality by the second data transmission path (i.e., a data transmission path by P2P connection), themanagement server104 may transmit data using the first data transmission path between the first client device102-1 and the second client device102-2. In this case, themanagement server104 does not transmit P2P network information of a peer device to the first client device102-1 and the second client device102-2.
• When a result of checking in operation S211 shows that the network quality by the first data transmission path is not superior to the network quality by the second data transmission path, themanagement server104 determines that data transmission between thecorresponding client devices102 is performed using the second data transmission path (S215).
• For example, when the network quality by the existing second data transmission path (i.e., a data transmission path by P2P connection) between the first client device102-1 and the third client device102-3 is superior to the network quality by the first data transmission path (i.e., a data transmission path via the management server104), themanagement server104 may determine that data transmission between the first client device102-1 and the third client device102-3 is performed using the second data transmission path.
• Then, themanagement server104 transmits P2P network information to the corresponding client devices102 (S217). In the previous example, themanagement server104 may transmit the P2P network information of the third client device102-3 to the first client device102-1 and transmit the P2P network information of the first client device102-1 to the third client device102-3, thereby enabling a P2P connection between the first client device102-1 and the third client device102-3.
• FIG.5 is a block diagram for describing an example of acomputing environment10 including a computing device suitable for use in exemplary embodiments. In the illustrated embodiment, each of the components may have functions and capabilities different from those described hereinafter and additional components may be included in addition to the components described herein.
• The illustratedcomputing environment10 includes acomputing device12. In one embodiment, thecomputing device12 may be aclient device102. In addition, thecomputing device12 may be amanagement server104.
• Thecomputing device12 may include at least oneprocessor14, a computer-readable storage medium16, and acommunication bus18. Theprocessor14 may cause thecomputing device12 to operate according to the above-described exemplary embodiment. For example, theprocessor14 may execute one or more programs stored in the computer-readable storage medium16. The one or more programs may include one or more computer executable instructions, and the computer executable instructions may be configured to, when executed by theprocessor14, cause thecomputing device12 to perform operations according to the exemplary embodiment.
• The computer-readable storage medium16 is configured to store computer executable instructions and program codes, program data and/or information in other suitable forms. The programs stored in the computer-readable storage medium16 may include a set of instructions executable by theprocessor14. In one embodiment, the computer-readable storage medium16 may be a memory (volatile memory, such as random access memory (RAM), non-volatile memory, or a combination thereof) one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, storage media in other forms capable of being accessed by thecomputing device12 and storing desired information, or a combination thereof.
• Thecommunication bus18 connects various other components of thecomputing device12 including theprocessor14 and the computer-readable storage medium16.
• Thecomputing device12 may include one or more input/output interfaces22 for one or more input/output devices24 and one or more network communication interfaces26. The input/output interface22 and thenetwork communication interface26 are connected to thecommunication bus18. The input/output device24 may be connected to other components of thecomputing device12 through the input/output interface22. The illustrative input/output device24 may be a pointing device (a mouse, a track pad, or the like), a keyboard, a touch input device (a touch pad, a touch screen, or the like), an input device, such as a voice or sound input device, various types of sensor devices, and/or a photographing device, and/or an output device, such as a display device, a printer, a speaker, and/or a network card. The illustrative input/output device24 which is one component constituting thecomputing device12 may be included inside thecomputing device12 or may be configured as a separate device from thecomputing device12 and connected to thecomputing device12.
• According to the disclosed embodiment, by matching and storing P2P network information and network quality information for each client device, it is possible to determine which of the first data transmission path and the second data transmission path is preferable to transmit data between the client devices, thereby preventing deterioration in quality during data transmission.
• A number of examples have been described above. Nevertheless, it will be understood that various modifications may be made. For example, suitable results may be achieved if the described techniques are performed in a different order and/or if components in a described system, architecture, device, or circuit are combined in a different manner and/or replaced or supplemented by other components or their equivalents. Accordingly, other implementations are within the scope of the following claims.

Claims (7)

What is claimed is:

1. A computing device comprising:

one or more processors;

a memory in which one or more programs to be executed by the one or more processors are stored;

a network information manager configured to transmit a peer-to-peer (P2P) network information of the computing device and network quality information at the time of connection of the computing device to a management server; and

a network monitor configured to generate network quality information by measuring a network quality at the time of connection of the computing device.

2. The computing device ofclaim 1, wherein the P2P network information includes one or more of a user identification (ID) of the computing device, private IP and port information, public IP and port information, and network identification information and the network information manager comprises a first network information manager configured to transmit the P2P network information of the computing device to the management server and a second network information manager configured to transmit the network quality information at the time of connection of the computing device to the management server.

3. The computing device ofclaim 2, wherein the network monitor comprises a first monitor configured to, when the computing device is connected to the management server, generate network quality information by measuring a quality of a network between the computing device and the management server and a second monitor configured to, when the computing device makes a P2P connection to another client device, generate network quality information by measuring a quality of a network between the computing device and the other client device.

4. The computing device ofclaim 2, wherein the first network information manager is configured to, when the computing device makes a P2P connection to another client device, transmit information on whether network access for the P2P connection is successful to the management server.

5. A data transmission method which is performed by a computing device comprising one or more processors and a memory in which one or more programs to be executed by the one or more processors are stored, the data transmission method comprising:

acquiring peer-to-peer (P2P) network information of the computing device;

transmitting the P2P network information of the computing device to a management server;

generating network quality information by measuring a network quality at the time of connection of the computing device; and

transmitting the network quality information to the management server.

6. The data transmission method ofclaim 5, wherein the generating of the network quality information comprises, when the computing device is connected to the management server, generating the network quality information by measuring a quality of a network between the computing device and the management server and, when the computing device makes a P2P connection to another client device, generating the network quality information by measuring a quality of a network between the computing device and the other client device.

7. The data transmission method ofclaim 5, further comprising, when the computing device makes a P2P connection to another client device, transmitting information on whether network access for the P2P connection is successful to the management server.

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