WO2013180398A1 - Procédé, système, et support d'enregistrement lisible par ordinateur permettant de transmettre un contenu au moyen d'identifiants spécifiques au contenu - Google Patents

Procédé, système, et support d'enregistrement lisible par ordinateur permettant de transmettre un contenu au moyen d'identifiants spécifiques au contenu Download PDF

Info

Publication number
WO2013180398A1
WO2013180398A1 PCT/KR2013/003788 KR2013003788W WO2013180398A1 WO 2013180398 A1 WO2013180398 A1 WO 2013180398A1 KR 2013003788 W KR2013003788 W KR 2013003788W WO 2013180398 A1 WO2013180398 A1 WO 2013180398A1
Authority
WO
WIPO (PCT)
Prior art keywords
content
node
client
unique identifier
transmitting
Prior art date
Application number
PCT/KR2013/003788
Other languages
English (en)
Korean (ko)
Inventor
양철웅
양우석
이재혁
Original Assignee
주식회사 아라기술
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020130037675A external-priority patent/KR101632068B1/ko
Application filed by 주식회사 아라기술 filed Critical 주식회사 아라기술
Publication of WO2013180398A1 publication Critical patent/WO2013180398A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/02—Marketing; Price estimation or determination; Fundraising

Definitions

  • the present invention relates to a method, a system and a computer-readable recording medium for transmitting content using a content unique identifier. More particularly, the present invention relates to a network by storing and transmitting content based on a unique identifier uniquely generated for each content.
  • a method, system and computer readable recording medium are provided that enable reducing traffic and improving the quality of content providing services.
  • the Uniform Resource Locator is an indicator indicating the location of content distributed on the World Wide Web.
  • the user can access the corresponding content on the web by entering a specific URL into his web browser.
  • the web server provides content corresponding to a specific URL. Since the URL is an indicator indicating the location of the content and is not an identifier for identifying the content itself, several different contents may correspond to one URL, and different contents may correspond to each other. One same content may correspond to several URLs.
  • a web page including the top news of the current time is provided through the URL "http://news.yahoo.com/", in which case "http: // news.
  • the contents of the news provided may vary depending on the time of access, so that different content may correspond to one URL.
  • a content delivery system operating on the web may include a client requesting content to a server and a server providing content in response to a request from the client.
  • the server may be overloaded, and the content providing quality may be lowered, and a bottleneck may occur in the communication network from the server to the client, thereby causing a problem in that the content providing speed is reduced.
  • a predetermined delivery server is placed in a position close to the client on the transmission path between the server and the client, and the delivery server stores the frequently requested popular content from the client to the server.
  • the transfer server transfers the contents stored by the server on behalf of the server.
  • a method of storing content in the delivery server a method of storing content selected in advance by an administrator or a corresponding system, and a method of receiving and storing the content from the server when the content is requested by the client (aka caching) (Caching) method.
  • caching caching
  • a transmission server located on a transmission path of a client and a server may receive a request for content from a client.
  • the delivery server compares the URL information of the content included in the request received from the client with the URL information of the content that is being stored, and determines whether the content has the content (ie, storing). Can be.
  • the delivery server may transmit the content stored by the client as a response to the request from the client, and the content requested from the client is transmitted to the delivery server.
  • the delivery server may send a request from the client to the server and transmit the content from the server as a response to the request to the client and store it in its storage space.
  • the storage space of the transmission server may be managed by a Least Recently Used (LRU) algorithm, a First Input First Output (FIFO) algorithm, or the like.
  • a problem may occur that storage space of the transmission server is wasted.
  • the transmission server using the URL as an identifier for the content must store the content duplicated for each URL even though the URL includes the same content. Therefore, the storage space of the transmission server is insufficient. Problems may occur.
  • a file sharing service such as video, audio, application, software update file, and web hard, it is common to have a plurality of different URLs corresponding to one content.
  • the transmission server located on the transmission path between the client and the server transmits the content stored in the client to the client using only the URL as an identifier for the content without receiving confirmation from the server in order to improve transmission efficiency.
  • the wrong content may be transmitted to the client only if the URL matches only the content actually requested by the client.
  • a problem may occur when transmitting contents in a wireless communication network.
  • a wireless communication network unlike a wired communication network in which a client terminal is fixedly located at a specific point on a communication network, in a wireless communication network, as the client terminal moves in a physical space, the position of the client terminal on the communication network changes and accordingly, the communication network to which the client terminal belongs.
  • This hand-over may occur.
  • the client that was receiving content from the first delivery server connected with the client before the handover needs to receive content from the second delivery server connected with the client after the handover.
  • the URL is used as the identifier of the content, it cannot be guaranteed that the content transmitted from the first delivery server and the content to be transmitted from the second delivery server are the same.
  • the second delivery server receives the content that has been transmitted from the first delivery server to the client while taking the decrease in the transmission efficiency, and transmits the content to the client again, or accepts the content that the client has while taking a mistransmission. Problems that can only be sent to the user may occur.
  • the object of the present invention is to solve all the above-mentioned problems.
  • Another object of the present invention is to identify content using a unique identifier rather than a URL in transmitting and storing the content, thereby accurately identifying the content existing on the web.
  • a delivery node receives a request for content from a client, and (b) Transmitting information on the URL of the content included in the request to a master node; (c) the transmitting node sends information on a unique identifier corresponding to the information on the URL of the content. Determining whether the content is stored in the transmitting node with reference to the information on the received unique identifier, and (d) determining that the content is stored in the transmitting node. When the transmitting node transmits the content stored in the transmitting node to the client, the content is transmitted to the client. If it is determined that not stored in the node, the method in which the transmitting node transmits the contents received from the master node comprises transmitting to the client is provided.
  • a method for delivering content using a content unique identifier comprising: (a) information regarding a URL of content requested by a client from a delivery node to a master node; (B) the master node determines a unique identifier corresponding to the information about the URL of the content with reference to the mapping information between the URL and the unique identifier, and sends the determined unique identifier to the transmitting node. Transmitting, and (c) the master node transmitting the content to the transmitting node if it is determined that the content is not stored in the transmitting node.
  • a delivery node receives a request for content from a client, and (b) the delivery node.
  • the master node receiving information on the URL of the content from the transmitting node;
  • a method for transmitting content using a content unique identifier comprising: (a) a node receiving a request for content from a client, (b) the node: Determining a unique identifier corresponding to the information about the URL of the content included in the request, with reference to the mapping information between the URL and the unique identifier, (c) the node comprising: information about the URL of the content; Determining whether the content is stored in the node with reference to information on a corresponding unique identifier; and (d) if the content is determined to be stored in the node, the node is stored in the node. Transmits the content to the client and determines that the content is not stored in the node, the node transmits the content to the server.
  • the method comprising transmitting to the client is provided with a receiving transfer site of the content.
  • a system for transmitting content using a content unique identifier comprising: a content request processor for receiving a request for content from a client; and information about a URL of the content included in the request. Transmits to a master node, receives information about a unique identifier corresponding to information on the URL of the content from the master node, and transmits the content with reference to the information on the received unique identifier. Is determined that the content is stored in the transmitting node, the content is stored in the transmitting node to the client, and the content is not stored in the transmitting node. If determined, the controller from the master node
  • the system including a content-specific identifier management unit for sending to the client is provided with a receiving transfer Massachusetts.
  • a system for delivering content using a content unique identifier comprising: receiving information about a URL of content requested by a client from a delivery node, between the URL and the unique identifier; A content unique identifier manager for determining a unique identifier corresponding to the information about the URL of the content and transmitting the determined unique identifier to the transmitting node with reference to the mapping information of the content, and the content is not stored in the transmitting node If not determined, a system including a content request processing unit for transmitting the content to the transmitting node is provided.
  • a system for transmitting content using a content unique identifier comprising: receiving a request for content from a client, and receiving information about a URL of the content included in the request; and determining whether the content is stored in the transmitting node with reference to the information on the determined unique identifier transmitted from the master node, and if it is determined that the content is stored in the transmitting node.
  • a system for transmitting content using a content unique identifier the content request processing unit for receiving a request for content from a client, and mapping information between the URL and the unique identifier, Determine whether the content is stored in the node by determining a unique identifier corresponding to the information about the URL of the content included in the request, and referring to the information about the unique identifier corresponding to the information about the URL of the content; Determine that the content is stored in the node, and transmit the content stored in the node to the client, and if the content is not stored in the node, receive the content from the server.
  • Content-specific expression to send to the client A system is provided comprising a star management unit.
  • the unique identifier to accurately identify the content existing on the web, it is possible to save the storage space of the server that stores the content, increase the reusability of the content and handover in a wireless communication network Even if it occurs, the effect of being able to transmit the content accurately is achieved.
  • the contents of the data constituting the content are managed to have different unique identifiers, the effect of being able to accurately identify each content even when various contents are downloaded through one URL is achieved. do.
  • the content can be accurately identified using the unique identifier
  • the existing URL for example, a specific URL for a certain time (Time To Live, TTL) for the specific content
  • TTL Time To Live
  • the URL can be used as an identifier for the content
  • re-validation that was involved when using an existing URL as an identifier.
  • FIG. 1 is a diagram schematically showing the overall configuration of a system for transmitting content using a content unique identifier according to the present invention.
  • FIG. 2 is a diagram illustrating an internal configuration of a master node 200 according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating an internal configuration of a transmission node 300 according to an embodiment of the present invention.
  • 4 to 7 are diagrams illustrating a process of transmitting content according to an embodiment of the present invention.
  • FIG. 8 is a diagram exemplarily illustrating a process of supporting handover in transmitting content using a content unique identifier according to an embodiment of the present invention.
  • FIG. 9 is a diagram exemplarily illustrating a mapping table between a URL and a unique identifier or a mapping table between a URL and a request header and a unique identifier according to an embodiment of the present invention.
  • FIG. 1 is a diagram schematically showing the overall configuration of a system for transmitting content using a content unique identifier according to the present invention.
  • the entire system of the present invention includes a communication network 10, a server 100, a master node 200, a delivery node 300, and a client 400. It can be configured to include.
  • the communication network 10 may be configured regardless of its communication mode such as wired and wireless, and may include the Internet (World Wide Web), a known wireless LAN (WLAN), code division multiple access (CDMA), and wideband code (WCDMA). It should be understood that the concept includes both division multiple access (GSM) or global system for mobile communications (GSM) networks.
  • GSM division multiple access
  • GSM global system for mobile communications
  • the server 100 may communicate with the client 400 through the communication network 10 in which the master node 200, the transmitting node 300, and the like exist, and the client 400.
  • a function of providing various types of information can be performed.
  • the server 100 may be an operation server of an Internet search portal site, and the information provided to the client 400 may be various information about a web page, an image, a video, an audio, and the like that match a query. .
  • the master node 200 may receive a content from the server 100 and store it in its own storage device or transmit the content to the transmitting node 300 to be described later. have.
  • the master node 200 may generate a unique identifier for the content and perform a mapping between the URL and the unique identifier of the corresponding content.
  • the request header of the content together with the information about the URL of the content, that is, the header included in the content request from the client 400. More information may be used.
  • the master node 200 may perform mapping between the information about the URL and the request header of the contents and the information about the unique identifier.
  • the master node 200 according to an embodiment of the present invention from the transmitting node 300 to be described later with reference to the mapping information between the URL (or URL and request header) and the unique identifier of the content that it manages A unique identifier corresponding to the received URL (or URL and request header) may be determined and transmitted to the corresponding transmission node 300.
  • the master node 200 may perform a function of transmitting a content corresponding to a specific unique identifier to the corresponding transmission node 300 in response to a request of the transmitting node 300.
  • the master node 200 is a transmission node 300B connected to the client 400 after the handover or when a handover occurs in the client 400 or
  • the transmitting node 300A which is connected with the client 400 before the handover, may transmit the content corresponding to the specific unique identifier to the client 400, and for this purpose, a function of transmitting predetermined indication information to the corresponding transmitting node. Can be performed.
  • FIG. 2 is a diagram illustrating an internal configuration of a master node 200 according to an embodiment of the present invention.
  • the master node 200 may include a content unique identifier manager 210, a content request processor 220, a handover processor 230, and a transceiver 240. It can be configured to include.
  • the content unique identifier management unit 210, the content request processing unit 220, the handover processing unit 230 and the transmission and reception unit 240 are at least some of the program modules to communicate with the external system Can be.
  • Such program modules may be included in the master node 200 in the form of operating systems, application modules, and other program modules, and may be physically stored on various known storage devices.
  • at least some of these program modules may be stored in a remote storage device that can communicate with the master node 200.
  • such program modules include, but are not limited to, routines, subroutines, programs, objects, components, data structures, etc. that perform particular tasks or execute particular abstract data types, described below, in accordance with the present invention.
  • the transmitting node 300 is the master node 200 to the URL (or URL and request header) of the content included in the request for the content received from the client 400 to be described later Request a unique identifier corresponding to the corresponding URL (or URL and request header), and receive a unique identifier corresponding to the URL (or URL and request header) of the corresponding content from the master node 200. Can be.
  • the transmitting node 300 according to an embodiment of the present invention has a function of determining whether it is storing the content requested from the client 400 with reference to the unique identifier received from the master node 200. Can be done.
  • the transmission node 300 determines that the user is storing the corresponding content
  • the transmission node 300 transmits the corresponding content to the client 400, and the user stores the corresponding content. If it is determined that they are not doing so, the corresponding content may be received from the master node 200 and stored in its own storage device and then transmitted to the client 400.
  • the transport node 300B connected to the client 400 after the handover or the transport node 300A connected to the client 400 before the handover is assigned to a specific unique identifier. The corresponding content may be transmitted to the client 400.
  • FIG. 3 is a diagram illustrating an internal configuration of a transmission node 300 according to an embodiment of the present invention.
  • the transmitting node 300 may include a content unique identifier manager 310, a content request processor 320, a handover processor 330, and a transceiver 340. It can be configured to include.
  • the content unique identifier management unit 310, the content request processing unit 320, the handover processing unit 330 and the transmission and reception unit 340 are program modules that at least some of them communicate with an external system. Can be. Such program modules may be included in the transmission node 300 in the form of operating systems, application modules, and other program modules, and may be physically stored on various known storage devices.
  • program modules may be stored in a remote storage device capable of communicating with the transmitting node 300.
  • program modules include, but are not limited to, routines, subroutines, programs, objects, components, data structures, etc. that perform particular tasks or execute particular abstract data types, described below, in accordance with the present invention.
  • the client 400 is a device having a function to communicate with each other by connecting to a communication network, a personal computer (for example, a laptop computer, etc.), PDA, tablet computer, As long as a device having memory means and a microprocessor, such as a smart phone or a mobile phone, can be a client 400 according to the present invention.
  • the client 400 may move in a physical space as a mobile communication terminal, and thus a hand-over phenomenon may occur in which a communication network to which the client 400 belongs is changed. .
  • a unique identifier or a content unique identifier (CUID) of the content refers to an identifier uniquely corresponding to each content. If the content unique identifier is the same, the content of the data constituting the content is the same, and the content unique identifier is the same. If different, the content of the data constituting the content is also different.
  • the content unique identifier may be generated by a predefined algorithm, and the applicable algorithm may be Message Digest 4 (MD4), Message Digest 5 (MD5) and SHA ( Secure Hash Algorithm).
  • MD4 Message Digest 4
  • MD5 Message Digest 5
  • SHA Secure Hash Algorithm
  • the administrator of the content delivery system may be generated so as to satisfy the desired error tolerance level, more specifically, the probability that a predetermined probability that the unique identifier of the content uniquely corresponds to the corresponding content It can be abnormal.
  • the content unique identifier may be generated based on at least some of the data constituting the content, if allowed by the administrator of the content delivery system, the entire content constituting the content
  • the data may be generated based on only some data (for example, initial data of a predetermined size), not data, and may be generated to include length (ie, size) information of all data constituting the corresponding content. That is, in this case, if some data of two contents to be compared are the same and the total length is the same, the two contents may be determined to be the same as a whole.
  • a URL (or a URL and a request header) specifying a location from which the content can be obtained in addition to the content unique identifier can be used as an auxiliary, thereby making the content unique identifier If the content cannot be identified by using, the content may be identified by using a URL (or a URL and a request header).
  • the server 100 is a web server operating according to a standard communication technology and may provide content corresponding to the URL (or URL and request header) of the content requested from the outside.
  • the client 400 may request content by using a URL (or URL and request header) to the outside as a client operating according to a standard communication technology.
  • a URL or URL and request header
  • the master node 200 refers to at least one unit node located on the communication path between the server 100 and the client 400, from the transmission node 300 As a response to the request, the user may perform a function of transmitting the content stored in the terminal or the content received from the server 100 to the transmitting node 300.
  • the master node 200 may perform a function of generating a unique identifier of the content, and mapping between the URL (or URL and request header) and the unique identifier of the content.
  • the content unique identifier corresponding to the URL (or URL and request header) received from the transmitting node 300 can be determined and transmitted to the transmitting node 300 based on the mapping information.
  • a note can perform a function.
  • the request header of the content that is, the information included in the content request from the client 400, together with the information about the URL of the content More can be used. That is, when multiple contents correspond to one URL, the master node 200 may perform mapping between the information about the URL and the request header of the contents and the information about the unique identifier.
  • FIG. 9 is a diagram exemplarily illustrating a mapping table between a URL and a unique identifier or a mapping table between a URL and a request header and a unique identifier according to an embodiment of the present invention.
  • the master node 200 stores the previously negotiated content in its own storage device and generates a unique identifier for the corresponding content, thereby generating a unique identifier from the subsequent transmission node 300.
  • it may perform a function of transmitting the content stored by the user to the transmitting node 300.
  • the master node 200 requests the server 100 for the content requested from the transmitting node 300, and responds to the content received from the server 100 in response thereto. It may perform a function of transmitting to the transmission node 300 while storing in the storage device of the. At this time, the master node 200 also generates and maintains a unique identifier for the corresponding content received from the server 100, thereby transmitting a unique identifier of the content to the delivery server 300 in response to the request or subsequent request. can do.
  • the master node 200 may be performed by the server 100 without directly performing a function of storing or transmitting content, and generates a unique identifier of the content or a URL of the content. (Or URL and request header) may be configured to perform only the function of managing the mapping information between the unique identifier.
  • the master node 200 may exist independently on the communication path between the server 100 and the transmitting node 300, or may be present in the server 100 or the transmitting node 300. It may be configured to be included. In general, when the master node 200 exists independently, it is advantageous in speeding up the transmission speed of the content, and the master node 200 is configured while being included in the server 100 or the transmitting node 300. It is advantageous in that the content delivery system can be easily configured with fewer components.
  • the transmitting node 300 identifies the corresponding content by using the content unique identifier and transmits the corresponding content to the client 400. can do. More specifically described as follows.
  • the transmitting node 300 may identify the content based on the content unique identifier and not the URL (or URL and request header). Since the request for a web server generally includes only information about the URL (or URL and request header) of the corresponding content, the transmitting node 300 maps information between the URL (or URL and request header) and the unique identifier of the content.
  • the master node 200 that manages the request may transmit a unique identifier corresponding to the URL (or URL and request header) of the content requested from the client 400.
  • the transmitting node 300 may receive information about the unique identifier corresponding to the URL (or URL and request header) of the content from the master node 200. In addition, the transmitting node 300 may determine whether the user has the corresponding content (that is, storing) by referring to the information about the unique identifier received from the master node 200, and the content is owned by the corresponding node. If it is determined that the user has the content can be sent to the client 400, if it is determined that he does not have the content, the content is received from the master node 200 and the client 400 again ) Can be sent.
  • the transmitting node 300 may request the master node 200 to transmit both information about the unique identifier of the content and the corresponding content itself, and the content from the master node 200. Both the information about the unique identifier and the data constituting the content itself can be received. For example, when the transmitting node 300 and the master node 200 communicate through an HTTP packet, they first receive a header including information on a content unique identifier, and then receive data constituting the content itself later. Can be. That is, the transmitting node 300 first receives only the information about the unique identifier of the content from the master node 200 and determines whether the corresponding content is owned, and if it is determined that the user has the corresponding content, the master node 200.
  • After ending the session with the (200) can send the corresponding content to the client (400), if it is determined that he does not have the content, and receives the content from the master node (200) It can be sent to the client 400 along with the storage in the storage device.
  • the transmitting node 300 does not receive the information about the unique identifier of the content from the master node 200, and includes the URL (or URL and the request included in the request from the client 400).
  • the transmitting node 300 may generate a unique identifier of the corresponding content and transmit the corresponding content to the client 400.
  • the transmitting node 300 may identify the unique identifier and the master node of the content that it has. By comparing the first data constituting the content being transmitted from the 200, it is possible to determine whether the user has the content being transmitted from the master node 200, and if it is determined that he has the corresponding content, the master The session with the node 200 may be terminated, and the corresponding content that is owned by the node 200 may be transmitted to the client 400. As a result, it is not necessary to receive the entire content from the master node 200, thereby increasing content transmission efficiency.
  • the transmitting node 300 may perform a function of identifying and transmitting the content by using the URL (or URL and request header) of the content as an identifier.
  • the transmitting node 300 may determine a URL (or URL and URL) for content (which may be designated by an administrator or the like) determined to be able to normally identify the content even if only the URL (or URL and request header) uses the identifier.
  • the content may be identified using the request header) as an identifier. If the transmitting node 300 stores the requested content from the client 400, the transmitting node 300 stores its own content using only the URL (or URL and request header) without receiving the content unique identifier or the content itself from the master node 200. Since the content stored in the device can be identified and the identified content can be directly transmitted to the client 400, the content transmission efficiency can be improved.
  • 4 to 7 are diagrams illustrating a process of transmitting content according to an embodiment of the present invention.
  • the transmitting node 300 transmits information regarding a URL (or URL and request header) of the content requested from the client 400 to the master node 200.
  • a request may be made to transmit a corresponding content unique identifier.
  • the master node 200 refers to the mapping information between the URL (or URL and request header) managed by the master and the content unique identifier, and corresponds to a unique identifier corresponding to the URL (or URL and request header) of the corresponding content.
  • the transmitting node 300 identifies the corresponding content among the contents stored by the user using the content unique identifier received from the master node 200.
  • the identified corresponding content may be transmitted to the client 400 (S440).
  • the transmitting node 300 transmits information regarding the URL (or URL and request header) of the requested content from the client 400 to the master node (
  • a request may be made to transmit a corresponding content unique identifier while transmitting to the corresponding content unique identifier.
  • the master node 200 refers to the mapping information between the URL (or URL and request header) managed by the master and the content unique identifier, and corresponds to a unique identifier corresponding to the URL (or URL and request header) of the corresponding content. If it is determined that does not have a can request to the server 100 to transmit the corresponding content (S530).
  • the server 100 may transmit the corresponding content to the master node 200 (S540), and the master node generates a unique identifier of the corresponding content using the corresponding content received from the server 100.
  • the generated content unique identifier may be transmitted to the transmitting node 300 (S550), and the transmitting node 300 identifies the corresponding content among the contents stored by the user using the content unique identifier received from the master node 200.
  • the corresponding content identified as described above may be transmitted to the client 400 (S560).
  • the transmitting node 300 transmits information regarding the URL (or URL and request header) of the requested content from the client 400 to the master node ( In step S620, the request for transmitting the corresponding content unique identifier may be made while transmitting to the server 200).
  • the master node 200 refers to the mapping information between the URL (or URL and request header) managed by the master and the content unique identifier, and corresponds to a unique identifier corresponding to the URL (or URL and request header) of the corresponding content.
  • the transmitting node 300 identifies the corresponding content among the contents stored by the user using the content unique identifier received from the master node 200.
  • the master node 200 may request to transmit the corresponding content (S640). Accordingly, the master node 200 may transmit the corresponding content to the transmitting node 300 (S650), and the transmitting node 200 stores the corresponding content received from the master node 300 in its storage device. In addition, it can be transmitted to the client 400 (S660).
  • the transmitting node 300 transmits information about the URL (or URL and request header) of the requested content from the client 400 to the master node (
  • a request may be made to transmit a corresponding content unique identifier while transmitting to the corresponding content unique identifier.
  • the master node 200 refers to the mapping information between the URL (or URL and request header) managed by the master and the content unique identifier, and corresponds to a unique identifier corresponding to the URL (or URL and request header) of the corresponding content. If it is determined that does not have the server 100 can request to transmit the content (S730).
  • the server 100 may transmit the corresponding content to the master node 200 (S740), and the master node generates a unique identifier of the corresponding content using the corresponding content received from the server 100.
  • the generated content unique identifier may be transmitted to the transmitting node 300 (S750), and the transmitting node 300 identifies the corresponding content among the contents stored by the user using the content unique identifier received from the master node 200.
  • the master node 200 may request to transmit the corresponding content (S760).
  • the master node 200 may transmit the corresponding content to the transmitting node 300 (S770), and the transmitting node 200 stores the corresponding content received from the master node 300 in its storage device. In addition, it can be transmitted to the client 400 (S780).
  • a position change on the communication network 10 of the client 400 may be changed, that is, a handover may occur.
  • the handover may be effectively processed by identifying the content using the content unique identifier.
  • FIG. 8 is a diagram exemplarily illustrating a process of supporting handover in transmitting content using a content unique identifier according to an embodiment of the present invention.
  • the client 400 is connected to the second transmission node 300B as a result of being handed over while belonging to the first communication network 20A connected to the first transmission node 300A. And (ii) as a result of being handed over in the state where the client 400 belongs to the first communication network 20A connected to the first transmitting node 300A. It may be assumed that it belongs to the third communication network 20C which is not connected. In the above two cases, the process of supporting handover will be described in more detail as follows.
  • the client 400 may stop receiving the content from the first transmission node 300A and receive the content from the second transmission node 300B in terms of transmission efficiency.
  • the client 400 may stop receiving the content from the first transmission node 300A and receive the content from the second transmission node 300B in terms of transmission efficiency.
  • the client 400 connects the same content as the content received from the first transmitting node 300A connected before the handover after handover.
  • the client 400 included in the first communication network 20A may request content from the first transmitting node 300A. Accordingly, the first transmitting node 300A transmits information about the URL (or URL and request header) of the corresponding content included in the content request from the client 400 to the master node 200, and transmits the information to the unique identifier of the corresponding content. You can ask us to send you information about it. Next, the first transmitting node 300A may identify the corresponding content by using the information about the unique identifier of the corresponding content received from the master node 200, and transmit the corresponding content to the client 400. Can be.
  • a second communication network 30A connected to the second transmission node 300B may be moved.
  • the master node 200 detects that a handover has occurred in the client 400, and the client 400 transmits the content that was being transmitted from the first transmitting node 300A to the client 400. 2 may transmit to the node 300B.
  • the second transmission node 300B may transmit the corresponding content to the client 400, and the second transmission node 300B may transmit the corresponding content.
  • the second transmission node 300B may receive the content from the master node 200 and transmit the content to the client 400 again.
  • the master node 200 may detect that a handover has occurred in the client 400, and may transmit content, which the client 400 is receiving from the first transmitting node 300A, to the client 400.
  • the master node 200 transmits the corresponding content to the client 400, and when the master node 400 does not have the corresponding content, the master node 200. Receives the corresponding content from the server 100 can be sent back to the client 400.
  • the second transmission node 300B connected to the client 400 does not have the content that the client 400 was receiving from the first transmission node 300A.
  • the master node 200 uses corresponding network technology such as tunneling technology to the corresponding content from the first transmitting node 300A to the client 400. Can continue the transmission of.
  • the master node 200 may use a tunneling technique to open a tunnel to the first transmission node 300A to which the client 400 is connected prior to the handover.
  • the master node 200 may allow the packet received from the client 400 (that is, the packet related to the content request) to be transmitted to the first transmitting node 300A through a tunnel, and correspondingly, the first transmitting node.
  • 300A may transmit a packet (ie, a packet constituting the requested content) in response to a request from the client 400 to the master node 200 through a tunnel.
  • the client 400 continuously transmits content from the first transmitting node 300A which was connected before the handover occurred. I can receive it.
  • a technique used to continuously transmit the content from the first transmitting node 300A to the client 400 is not necessarily limited to the tunneling technique, and may achieve the object of the present invention. It is noted that other techniques may be applied within the scope.
  • the client 400 when the client 400 requests the content, the client 400 may provide not only the URL (or URL and request header) of the content but also information about the unique identifier. For example, the client 400 may request to transmit content having a URL of "A", a header value of "B", and a content unique identifier of "X”, so that the transmitting node 300 may transmit a master node. Without having to request the unique identifier of the corresponding content to the 200, the content unique identifier having the content “X” may be identified and the thus identified content may be transmitted to the client 400. Of course, if the transmitting node 300 does not have the content with the content unique identifier "X" may receive the content from the master node 200 or the server 100 and deliver it to the client.
  • the server 100 may be configured to perform at least some functions of the above-described master node. Specifically, the server 100 may further perform a function of generating a unique identifier of the content, a function of managing mapping information between the URL (or URL and request header) and the unique identifier of the content, in addition to the basic function of transmitting the content. Can be. In this case, the transmitting node 300 may directly communicate with the server 100 without having to communicate with the master node 200 to directly receive the content unique identifier or the content itself from the server 100, thereby improving content transmission efficiency. To increase.
  • the server 100 performs a function related to content transmission of the master node 200 and transmits a function related to content generation and management of the content unique identifier of the master node 200.
  • a content delivery system can be configured without using a separate master node 200. In this case, it is advantageous in that the content delivery system can be easily configured with fewer components.
  • the transmitting node 200 located in close proximity to the client 400 on the communication network 10 directly transmits its own content to the client 400, and the content is not owned by the master node 200.
  • the storage space of the master node 300 is set relatively large and the storage space of the transmission node 200 is set relatively small so that the plurality of transmission nodes 300 are stored in the storage space of the master node 200.
  • the content can be shared, compared with the case where there is no master node 200, it is possible to increase the content storage efficiency while reducing the cost of preparing the storage space of the entire system.
  • the communication between the server 100 and the master node 200 or the communication between the transmission node 300 and the client 400 should comply with a communication standard, but between the master node 200 and the transmission node 300.
  • a proprietary communication technology can be applied without having to comply with a communication standard.
  • the master node and the transmitting node are placed at the front end of the bottleneck section, and various content compression techniques are used for communication between the master node and the transmitting node. (For example, a real-time compression technique, a compression technique using a dictionary, etc.) can be applied, thereby achieving an effect of increasing the efficiency of content transmission.
  • Embodiments according to the present invention described above can be implemented in the form of program instructions that can be executed by various computer components and recorded on a computer-readable recording medium.
  • the computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination.
  • Program instructions recorded on the computer-readable recording medium may be those specially designed and configured for the present invention, or may be known and available to those skilled in the computer software arts.
  • Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, and magneto-optical media such as floptical disks. media), and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.
  • Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
  • the hardware device may be configured to operate as one or more software modules to perform the process according to the invention, and vice versa.

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Strategic Management (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Accounting & Taxation (AREA)
  • Theoretical Computer Science (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Finance (AREA)
  • Development Economics (AREA)
  • Human Resources & Organizations (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Tourism & Hospitality (AREA)
  • Data Mining & Analysis (AREA)
  • Quality & Reliability (AREA)
  • Operations Research (AREA)
  • Game Theory and Decision Science (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé permettant de transmettre un contenu au moyen d'un identifiant spécifique au contenu, ledit procédé comprenant les étapes suivantes : (a) un nœud de livraison reçoit une demande de contenu en provenance d'un client ; (b) le nœud de livraison transmet les informations URL pour le contenu inclus dans la demande à un nœud maître ; (c) le nœud de livraison reçoit les informations URL pour le contenu et des informations concernant l'identifiant unique en provenance du nœud maître, et détermine si le contenu est enregistré dans le nœud de livraison en référence aux informations concernant l'identifiant spécifique au contenu reçu ; et (d) le nœud de livraison reçoit le contenu en provenance du nœud maître et transmet le contenu au client lorsque le contenu est déterminé comme étant enregistré dans le nœud de livraison.
PCT/KR2013/003788 2012-06-01 2013-05-02 Procédé, système, et support d'enregistrement lisible par ordinateur permettant de transmettre un contenu au moyen d'identifiants spécifiques au contenu WO2013180398A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20120059405 2012-06-01
KR10-2012-0059405 2012-06-01
KR10-2013-0037675 2013-04-05
KR1020130037675A KR101632068B1 (ko) 2012-06-01 2013-04-05 컨텐츠 고유 식별자를 이용하여 컨텐츠를 전송하기 위한 방법, 시스템 및 컴퓨터 판독 가능한 기록 매체

Publications (1)

Publication Number Publication Date
WO2013180398A1 true WO2013180398A1 (fr) 2013-12-05

Family

ID=49673549

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/003788 WO2013180398A1 (fr) 2012-06-01 2013-05-02 Procédé, système, et support d'enregistrement lisible par ordinateur permettant de transmettre un contenu au moyen d'identifiants spécifiques au contenu

Country Status (1)

Country Link
WO (1) WO2013180398A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020044870A (ko) * 2000-12-07 2002-06-19 양춘식 역-방향 프록시 서버 및 그를 이용한 웹-서비스 제공 방법
JP2003289327A (ja) * 2002-01-25 2003-10-10 Docomo Communications Laboratories Usa Inc 移動ホストを含むパケット通信ネットワークにおけるキャッシュ可能なストリーミング・コンテンツの管理システム
JP2008519362A (ja) * 2004-11-08 2008-06-05 イーエムシー コーポレイション コンテンツアドレスマッピングを維持するためのコンテンツアドレス記憶デバイス
KR20090103552A (ko) * 2008-03-28 2009-10-01 주식회사 아라기술 컨텐츠 캐싱을 이용한 웹 페이지 및 웹 컨텐츠 제공 시스템및 방법
JP2011223621A (ja) * 2006-03-31 2011-11-04 Research In Motion Ltd 移動通信装置のコンタクトリストにおけるマッピング機能と情報とを関連付ける方法および装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020044870A (ko) * 2000-12-07 2002-06-19 양춘식 역-방향 프록시 서버 및 그를 이용한 웹-서비스 제공 방법
JP2003289327A (ja) * 2002-01-25 2003-10-10 Docomo Communications Laboratories Usa Inc 移動ホストを含むパケット通信ネットワークにおけるキャッシュ可能なストリーミング・コンテンツの管理システム
JP2008519362A (ja) * 2004-11-08 2008-06-05 イーエムシー コーポレイション コンテンツアドレスマッピングを維持するためのコンテンツアドレス記憶デバイス
JP2011223621A (ja) * 2006-03-31 2011-11-04 Research In Motion Ltd 移動通信装置のコンタクトリストにおけるマッピング機能と情報とを関連付ける方法および装置
KR20090103552A (ko) * 2008-03-28 2009-10-01 주식회사 아라기술 컨텐츠 캐싱을 이용한 웹 페이지 및 웹 컨텐츠 제공 시스템및 방법

Similar Documents

Publication Publication Date Title
EP1549022B1 (fr) Procédé et système de commande pour la transmission d'informations à travers un réseau de communications mobile
US8078723B2 (en) Dispatching method, dispatching apparatus and dispatching system
WO2012074198A1 (fr) Terminal et nœud intermédiaire dans un environnement de réseautage orienté contenu et procédé de communication de terminal et de nœud intermédiaire
WO2013100573A1 (fr) Système de transmission de contenu, procédé pour optimiser un trafic de réseau dans le système, dispositif de contrôle central et dispositif de mise en cache local
WO2014101023A1 (fr) Procédé et dispositif de prévention d'un accès illégal à un service
WO2012138183A2 (fr) Appareil et procédé pour fournir un contenu à l'aide d'un service de transmission en continu de données adaptatif sur la base de conditions de réseau
WO2012050293A1 (fr) Procédé et appareil permettant de partager des contenus à l'aide d'informations de changement de groupe dans un environnement de réseau orienté contenu
WO2013008994A1 (fr) Procédé de découverte de dispositifs et procédé de téléchargement de contenu
KR101780802B1 (ko) 통신 시스템에서 ｉｐ 어드레스를 이용한 디바이스 컨텍스트 관리 방법 및 장치
TWI679864B (zh) 行動邊緣運算平台及其封包轉送方法
WO2022216049A1 (fr) Procédé et appareil pour configurer un identifiant externe d'équipement utilisateur (ue) temporaire dans un système de communication sans fil
WO2014200177A1 (fr) Procédé de délivrance de contenu dans un réseau de communication et appareil associé
WO2013024966A1 (fr) Procédé et dispositif de réception de contenu
WO2018128226A1 (fr) Procédé de transmission de contenu sur un réseau hétérogène et appareil associé
WO2015199271A1 (fr) Procédé et système de partage de fichiers sur p2p
WO2015002443A1 (fr) Dispositif mobile et procédé de commande d'émission vers un serveur web dans un dispositif mobile
WO2013176431A1 (fr) Système et procédé pour allouer un serveur à un serveur et pour une messagerie efficace
WO2015068929A1 (fr) Procédé de fonctionnement d'un nœud considérant les caractéristiques de paquets dans un réseau centré sur le contenu et nœud
WO2014208889A1 (fr) Dispositif et procédé pour traiter des données dans un système d'émission de contenu
WO2013154364A1 (fr) Procédé de restitution de diffusion en continu, et appareil informatique mettant en œuvre ce procédé
WO2019192098A1 (fr) Procédé et dispositif de partage de ressources de divertissement, et support de stockage lisible par ordinateur
WO2013180398A1 (fr) Procédé, système, et support d'enregistrement lisible par ordinateur permettant de transmettre un contenu au moyen d'identifiants spécifiques au contenu
KR101205387B1 (ko) 리소스를 전달하기 위한 방법, 네트워크 엔터티 및 네트워크 시스템
WO2019231163A1 (fr) Appareil et procédé de gestion de retard de transmission de message
WO2014157956A1 (fr) Procédé et appareil de traitement du transfert d'un terminal dans un système de communications mobiles

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13797209

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13797209

Country of ref document: EP

Kind code of ref document: A1