KR20180059387A - Communication method based on integrated flat id and system - Google Patents

Abstract

Embodiments of the present invention relate to an integrated-ID-based communication method and a communication system thereof, which enable easy resource management by defining integrated IDs for using resources in an efficient and integrated manner, minimize traffic, and improve a communication speed. According to an embodiment of the present invention, the communication method, which is executed by the communication system and is used as a technical means for achieving a technical object, includes the steps of: allocating device IDs to access terminals and allocating service IDs to services included in the capabilities of the access terminals; receiving service search keywords from a first terminal included in the access terminals and searching for a target service corresponding to the keywords; and relaying the communication between the first terminal and second terminal, which are included in the access terminals and correspond to the target service, for the target service based on the service IDs of the found target service.

Description

Technical Field [0001] The present invention relates to an integrated ID-based communication method and communication system,

Embodiments described herein relate to an integrated ID based communication method and communication system that defines an integrated ID for efficient and integrated use of resources to facilitate resource management, minimize traffic, To a communication method and a communication system.

Conventionally, the identifiers for the various constituent parts constituting the network, for example, the communication devices, the computing resources, the contents such as the image and the image are different, and the management is not easy. In addition, in the conventional communication method of identifying a device using IP, there is a problem that the identifier changes in accordance with movement in the case of a wireless device.

Korean Patent Laid-Open No. 10-2004-0068702, which is a related art, proposes a resource management method of a wireless network management system in a mobile communication system. At this time, the prior art mobile communication system selects a method of assigning an identification value to a base station for managing mobility of the wireless device.

According to the above-described prior art, there is an advantage that resources managed separately for the base station and the controller of the base station can be integrated and managed. However, this is limited to wireless devices. For other elements constituting the network such as contents, I can not escape from the problem of difficulty.

On the other hand, the background art described above is technical information acquired by the inventor for the derivation of the present invention or obtained in the derivation process of the present invention, and can not necessarily be a known technology disclosed to the general public before the application of the present invention .

The embodiments disclosed herein are aimed at disclosing a communication method and an apparatus for performing the same.

In addition, the embodiments provide a simplified integrated ID for various types of objects, thereby improving management efficiency, facilitating information exchange and collaboration between service providers, and providing a mashup service as a building block, A communication method, and a communication system that can be used in a communication system.

Also, the embodiments are intended to support a wireless sensor network or a heterogeneous network that uses various communication modules, including non-IP, as well as IP address information of the terminal.

Embodiments also provide an integrated resource management system that utilizes various resources to provide various types of resources or services.

Embodiments also aim to utilize in-network caching to reduce traffic amplification.

Also, the embodiments provide ID-based routing for an environment in which various devices including IoT generate a lot of sensing information, a lot of video streaming, an environment where a lot of data traffic is generated in general, cooperative networking is required, There is a purpose in doing.

Embodiments also aim to reduce the packet processing burden by performing routing with a fixed-length service ID based on the hash value of the content or the hash value of the public key of the service.

According to an embodiment of the present invention, there is provided a communication method performed by a communication system, the method comprising: providing a device ID to each of two or more access terminals; Assigning a service ID to the service ID; Receiving a service search keyword from a first terminal of the access terminals and searching for an object service corresponding to the keyword; And relaying communication between the first terminal and the second terminal corresponding to the target service among the access terminals based on the service ID of the target service.

According to another embodiment, a computer-readable recording medium on which a program for performing a communication method is recorded is disclosed. In this case, the communication method includes: providing a device ID to each of the two or more access terminals and assigning a service ID to the services held by the access terminals; Receiving a service search keyword from a first terminal of the access terminals and searching for an object service corresponding to the keyword; And relaying communication between the first terminal and the second terminal corresponding to the target service among the access terminals based on the service ID of the target service.

According to yet another embodiment, a computer program stored on a medium for performing a communication method, which is performed by a communication system, is disclosed. In this case, the communication method includes: providing a device ID to each of the two or more access terminals and assigning a service ID to the services held by the access terminals; Receiving a service search keyword from a first terminal of the access terminals and searching for an object service corresponding to the keyword; And relaying communication between the first terminal and the second terminal corresponding to the target service among the access terminals based on the service ID of the target service.

According to yet another embodiment, there is provided a communication system including a resolver that assigns a device ID to an access terminal and assigns a service ID to a service held by each access terminal.

According to any one of the above-mentioned means for solving the above-mentioned problems, the embodiments disclosed herein can disclose a communication method and an apparatus for performing the same.

In addition, the embodiments provide a simplified integrated ID for various types of objects, thereby improving management efficiency, facilitating information exchange and collaboration between service providers, and providing a mashup service as a building block, It is possible to provide a communication method and a communication system.

In addition, embodiments can support a wireless sensor network or a heterogeneous network that uses various communication modules including non-IP, as well as IP address information of the terminal.

Also, the embodiments can integrate various types of resources or services using various resources and provide efficient resource management.

In addition, the embodiments can reduce the degree of traffic amplification by utilizing in-network caching.

Also, the embodiments provide ID-based routing for an environment in which various devices including IoT generate a lot of sensing information, a lot of video streaming, an environment where a lot of data traffic is generated in general, cooperative networking is required, .

Embodiments can also reduce the packet processing burden by performing routing with a fixed length service ID based on a hash value of the content or a hash value of the public key of the service.

The effects obtained in the disclosed embodiments are not limited to the effects mentioned above, and other effects not mentioned are obvious to those skilled in the art to which the embodiments disclosed from the following description belong It can be understood.

1 is a block diagram showing the configuration of a communication system according to an embodiment.
FIGS. 2 to 5 are exemplary diagrams illustrating operations of a communication system according to an embodiment.
6 to 8 are flowcharts for explaining a communication method according to an embodiment.
9 is an exemplary diagram illustrating a communication method performed by a communication system according to an embodiment.

Various embodiments are described in detail below with reference to the accompanying drawings. The embodiments described below may be modified and implemented in various different forms. In order to more clearly describe the features of the embodiments, detailed descriptions of known matters to those skilled in the art are omitted. In the drawings, parts not relating to the description of the embodiments are omitted, and like parts are denoted by similar reference numerals throughout the specification.

Throughout the specification, when a configuration is referred to as being "connected" to another configuration, it includes not only a case of being directly connected, but also a case of being connected with another configuration in between. In addition, when a configuration is referred to as "including ", it means that other configurations may be included, as well as other configurations, as long as there is no specially contradicted description.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

Prior to the description, however, the following terms will be defined.

The communication method provided by the communication system 100 according to the embodiment may relay the communication between the 'access terminals 200'. At this time, according to a request of the access terminal 200, services such as a resource, a content such as a video or an image, and a streaming or a chat can be collectively regarded as a 'service'. At this time, a unique identifier given to the service or the like is referred to as a 'service ID'.

The term 'access terminal 200' refers to a terminal that performs networking by connecting to the communication system 100 according to an embodiment, and includes a data storage device capable of communicating with a user terminal such as a smart phone, a notebook PC, a PC, A beacon and the like, and the like. At this time, a unique identifier assigned to the access terminal 200 is referred to as a 'device ID'.

According to an embodiment of the present invention, the access terminal 200, which is connected to the communication system 100 and requests the search and provision of a service, is referred to as a first terminal and an access terminal 200 having a service requested by the first terminal is referred to as a second terminal do.

At this time, the first terminal and the second terminal are classified according to the operation in the embodiment for the sake of easy explanation, but they are not classified by the difference in function unique to the terminal.

On the other hand, a service that the first terminal connects to the communication system 100 and requests to provide is referred to as a 'destination service'.

Other terms that need to be defined are defined in the relevant sections described below.

1 is a block diagram illustrating a configuration of a communication system 100 according to an embodiment.

According to an embodiment of the present disclosure, the communication method provided by the communication system 100 can support a communication method based on an integrated ID capable of integrally managing elements of communication, such as communication devices, topology and services.

Referring to FIG. 1, a communication system 100 according to an embodiment may include a resolver 110, a matcher 120, and an SDN controller 130.

According to the embodiment, the resolver 110 can assign an integrated ID to a communication device, a resource, a service, and the like, configure a network, and find an ID corresponding to a service requested by a user. In addition, the matcher 120 manages the topology based on the integrated ID, establishes a communication path between the access terminals 200, and allocates resources according to the request of the access terminal 200. [ In addition, the SDN controller 130 can control the SDN switch. Hereinafter, the operation of each configuration of the communication system 100 such as the resolver 110, the matcher 120, and the SDN controller 130 will be described in detail.

According to the embodiment, the resolver 110 can assign and manage an integrated ID. According to the embodiment, the integrated ID structure for integrally managing resources, services, and the like can be configured with two layers of a device ID and a service ID.

According to an embodiment, resolver 110 may generate a fixed length ID. At this time, the fixed length ID can be set based on the hash value or the light management value. For example, if a hash value is used as an ID, the security can be secured. For example, in the case of a video or image content, a hash value of the service itself may be used as an ID. In the case of a service such as streaming or chatting, a hash value of a service's public key may be used as an ID. It is inherent. In the case of contents, based on the ID, the integrity of the received data can be verified. In the case of a service such as streaming and chatting, the integrity of the public key and the authenticity of the object can be verified.

2 is an exemplary diagram schematically showing an operation in which the resolver 110 assigns a device ID to the access terminal 200 in the communication system 100 according to the embodiment.

2, the resolver 110 may assign a device ID to the access terminal 200 that wants to participate in communication, store the device ID in the device ID DB by mapping the assigned device ID with the routing address.

Specifically, the resolver 110 can receive a join request from the access terminal 200 that intends to participate in the communication. At this time, the participation request may include a unique code (for example, a routing address of a communication module of a standard such as WiFi or LTE), and the resolver 110 may check whether the received unique code is already registered in the device ID DB have. If the unique code of the access terminal 200 is not registered, the resolver 110 assigns the device ID to the access terminal 200, maps the assigned device ID and unique code, and stores the mapped device ID in the device ID DB.

For example, when receiving a participation request from a WiFi device having a MAC address of 00-1a-e9-8d-08-73 and an IP address of 143.248.30.13 as illustrated in FIG. 2, A device ID '001' is assigned to the terminal 200, and a MAC address and an IP address of the device are mapped to the device ID '001'.

According to the embodiment, the device ID DB may include a device ID field, an interface field for describing the type of the communication standard, a MAC address field, and an IP address field.

Also, the resolver 110 can transmit information on the device ID assigned to the access terminal 200 to the access terminal 200.

At this time, the resolver 110 can provide communication in various ways by registering a unique ID with respect to the access terminal 200 and routing addresses of various communicable modules such as LTE, Bluetooth, WiFi, etc. When the routing address is changed The mobility problem can be solved easily by updating the information every time.

On the other hand, the resolver 110 may assign a service ID to each service held by the access terminal 200 in order to identify the service held by the access terminal 200. 3 is a diagram schematically showing the structure of the service ID according to the embodiment.

Referring to FIG. 3, the service ID may include a cache bit, a serial number, and a segment flag.

According to an embodiment, the cache bit may be located at the first bit of the service ID, and the intermediate nodes or the communication participating nodes can determine whether to cache the corresponding service by referring to the cache bit. Accordingly, it is possible to utilize the link by caching in the network as efficiently as possible by performing the cache only by checking the ID.

In addition, the segment flag may indicate information about whether or not the service indicated by the service ID is divided. For example, if the corresponding flag is set, it indicates that the segment number is recorded as an attribute value of the service. Thus, according to the embodiment, caching is possible on a segment basis.

On the other hand, FIG. 4 is an exemplary diagram schematically showing an operation in which the resolver 110 updates information about a service according to an embodiment. As shown in FIG. 4, the resolver 110 registers the service held by the access terminal 200 participating in the communication, and updates the service information each time the service is generated or terminated.

Specifically, the resolver 110 can receive information including the device ID, the service ID, and attribute information per service from the access terminal 200. [ At this time, the attribute information may include, for example, information on a bandwidth, a segment number, and the like.

The resolver 110 can confirm the information registered in the service ID DB by using the service ID received from the access terminal 200. The information previously registered in the service ID DB can be updated to the recently received information.

Also, the resolver 110 can store attribute information corresponding to each service with each service ID.

On the other hand, the resolver 110 can relay the communication between the first terminal and the second terminal based on the integrated ID as described above.

First, the resolver 110 can receive a service search keyword from a first terminal, which is a terminal requesting a service search of the access terminal 200, and search for an objective service corresponding to the received keyword.

Also, the resolver 110 can transmit the retrieved service ID of the target service to the first terminal. The first terminal, which has received the service ID of the target service, can request resource allocation and routing to the matcher 120.

At this time, the matcher 120 searches for a second terminal corresponding to the destination service based on the service ID received from the first terminal, sets a path from the first terminal to the second terminal, have. In addition, the matcher 120 may provide the set path to the SDN controller 130. According to an embodiment, the matcher 120 may find an optimal path according to the Dijkstra algorithm based on the resource and topology information.

In addition, the SDN controller 130 may modify the flow table of SDN switches in the network. In addition, the first terminal, which has confirmed that the path setting and resource allocation are completed, can generate an interlace packet to be transmitted to the second terminal. At this time, the SDN switches can receive the transmitted packets from the first terminal and transmit them to the second terminal according to the flow table described above.

At this time, the status of the resources is managed centrally by the resolver 110 and the matcher 120, the path is set, and the SDN controller 130 provides the forwarding information, so that the SDN switch manages a separate PIT no need.

At this time, if there is an intermediate node corresponding to the service ID in the movement path of the interlace packet, the intermediate node can generate a data packet corresponding to the interlace packet and transmit it to the first terminal. In other words, if caching is performed in the movement path of the interlace packet, the SDN switch can generate a data packet and transmit it to the first terminal. According to the embodiment, the first terminal receiving the data packet can transmit a response packet (Data_Ack Packet) to the second terminal.

On the other hand, if there is no caching, the second terminal generates a data packet corresponding to the interlaced packet, and the SDN switch can forward the data packet generated by the second terminal to the first terminal. At this time, the first terminal receiving the data packet can generate a response packet and transmit it to the second terminal.

As described above, a packet including an interlaced packet, a data packet, and a response packet may include a header including a device ID and a service ID.

Referring to FIG. 5, there is shown an exemplary diagram illustrating a header according to an embodiment.

According to FIG. 5, an integrated ID-based header may include the following information. Version: Information about version of protocol for integrated ID-based communication, 2) Packet Type: Information about any of the packet, data packet, or response packet, 3) Hash Type: Information about the hash algorithm used to create the integrated ID ④ Head Lim Len: information about the total length of the header ⑥ PTC: information about reliable transmission ⑦ DF: information about the total length of the header, If set, fragmentation is prohibited. ⑧ MF: Indicates fragmentation if set, ⑨ Frag. Offset: When fragmented, offset information for all data, ⑩ Src. Flex ID: Device ID of the first terminal, (11) Dst. Flex ID: ID of the service, ⑫ Packet Len: Information about the total length of header and data size, ⑬ Seq Number: (When PTC is set) Sequence number, ⑭ Ack Number: (When PTC is set ) Response number, and (15) Option Header Field: Option information.

According to the embodiment, if the header uses the hash as SHA1, the ID corresponds to a total of 20 bytes, 62 bytes are allocated for reliable transmission, and 54 bytes are allocated for unreliable transmission. Therefore, relatively little resources are required.

6 to 8 are flowcharts for explaining a communication method performed by the communication system 100. FIG. The communication method according to the embodiment shown in Figs. 6 to 8 includes the steps of time series processing in the communication system 100 according to the embodiment according to Figs. 1-5. Therefore, even though omitted from the following description, the above description of the communication system 100 according to the embodiment of Figs. 1 to 5 also applies to the data analysis method according to the embodiments shown in Figs. 6 to 8 Can be applied.

6, the communication system 100 may assign a device ID to each of the two or more access terminals 200 and assign a service ID to the service held by each access terminal 200 (S61) . At this time, the communication system 100 may assign a device ID to the access terminal 200, and may map the device ID to a routing address and store the device ID in the device ID DB. In addition, the service ID may be configured to include a cache bit, a serial number, and a segment flag. In addition, the communication system 100 can assign a service ID to a service held by each access terminal 200, and can assign a service ID based on a hash value corresponding to each service.

Then, the communication system 100 receives the service search keyword from the first terminal of the access terminal 200 (S62), and can search for the target service corresponding to the keyword (S63). At this time, the communication system 100 can search for the target service based on the information included in the service ID DB.

In addition, the communication system 100 can relay the communication for the destination service between the second terminal and the first terminal corresponding to the destination service in the access terminal 200 based on the service ID of the searched destination service (S64) .

According to the embodiment, in relaying the communication (S64), the communication system 100 can transmit a data packet between the first terminal and the second terminal. The data packet may include at least one of an interlaced packet, a data packet, and a response packet. At this time, the header of the packet may include information on the hash algorithm used to generate the service ID.

Referring to FIG. 7, in relaying communication (S64), the communication system 100 sets a path from the first terminal to the second terminal based on the device ID (S71) The rest packet can be transmitted along the path (S72).

Next, referring to FIG. 8, when there is a caching corresponding to an interlaced packet while the communication system 100 is transmitting an interlaced packet generated by the first terminal according to a path, the communication system 100 transmits a data packet generated based on caching To the first terminal (S82). On the other hand, if there is no caching, the second terminal can deliver the data packet generated in response to the interlaced packet to the first terminal (S83). The first terminal receiving the data packet generates a response packet, and the communication system 100 can forward the response packet to the second terminal (S84).

9, as one embodiment of a communication method performed by the communication system 100 on the assumption of an edge network, a communication method may be performed on a data plane and a control plane .

According to Fig. 9, the control plane can be configured as a resolver, a match, and an SDN controller. Also, the data plane of the upper part (Northbound API) based on the control plane includes an access terminal 200 requesting a service search or having a service, and using a service / contents / resource registered in the edge network . Also, the device / topology and the service / contents / resource can be registered in the edge network at the bottom (Southbound API) based on the control plane.

According to the embodiment, in the data plane, the access terminals 200 can exchange data with each other via the device ID and the service ID.

The term " part " used in the above embodiments means a hardware component such as a software or a field programmable gate array (FPGA) or an ASIC, and the 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program patent code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.

The functions provided within the components and components may be combined with a smaller number of components and components or separated from additional components and components.

In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

The communication method according to the embodiments described with reference to Figs. 6 to 8 may also be embodied in the form of a computer-readable medium for storing instructions and data executable by a computer. At this time, the command and data may be stored in the form of program code, and when executed by the processor, a predetermined program module may be generated to perform a predetermined operation. In addition, the computer-readable medium can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. The computer-readable medium can also be a computer storage medium, which can be volatile and non-volatile, implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, Volatile, removable and non-removable media. For example, the computer recording medium may be a magnetic storage medium such as an HDD and an SSD, an optical recording medium such as a CD, a DVD and a Blu-ray Disc, or a memory included in a server accessible via a network.

The communication method according to the embodiments described with reference to Figs. 6 to 8 may also be implemented as a computer program (or a computer program product) including instructions executable by a computer. A computer program includes programmable machine instructions that are processed by a processor and can be implemented in a high-level programming language, an object-oriented programming language, an assembly language, or a machine language . The computer program may also be recorded on a computer readable recording medium of a type (e.g., memory, hard disk, magnetic / optical medium or solid-state drive).

Thus, the communication method according to the embodiments described with reference to Figs. 6 to 8 can be implemented by a computer program as described above being executed by the computing device. The computing device may include a processor, a memory, a storage device, a high-speed interface connected to the memory and a high-speed expansion port, and a low-speed interface connected to the low-speed bus and the storage device. Each of these components is connected to each other using a variety of buses and can be mounted on a common motherboard or mounted in any other suitable manner.

Where the processor may process instructions within the computing device, such as to display graphical information to provide a graphical user interface (GUI) on an external input, output device, such as a display connected to a high speed interface And commands stored in memory or storage devices. As another example, multiple processors and / or multiple busses may be used with multiple memory and memory types as appropriate. The processor may also be implemented as a chipset comprised of chips comprising multiple independent analog and / or digital processors.

The memory also stores information within the computing device. In one example, the memory may comprise volatile memory units or a collection thereof. In another example, the memory may be comprised of non-volatile memory units or a collection thereof. The memory may also be another type of computer readable medium such as, for example, a magnetic or optical disk.

And the storage device can provide a large amount of storage space to the computing device. The storage device may be a computer readable medium or a configuration including such a medium and may include, for example, devices in a SAN (Storage Area Network) or other configurations, and may be a floppy disk device, a hard disk device, Or a tape device, flash memory, or other similar semiconductor memory device or device array.

It will be apparent to those skilled in the art that the above-described embodiments are for illustrative purposes only and that those skilled in the art will readily understand that various changes and modifications can be made without departing from the spirit or scope of the present invention. You will understand. It is therefore to be understood that the above-described embodiments are to be considered in all respects only as illustrative and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

It is to be understood that the scope of the present invention is defined by the appended claims rather than the foregoing description and should be construed as including all changes and modifications that come within the meaning and range of equivalency of the claims, .

100: communication system 110: resolver
120: Matched 130: SDN controller
200: access terminal

Claims (12)

A communication method performed by a communication system,
Assigning a device ID to each of the two or more access terminals and assigning a service ID to the services held by the access terminals;
Receiving a service search keyword from a first terminal of the access terminals and searching for an object service corresponding to the keyword; And
And relaying communication between the first terminal and the second terminal corresponding to the target service among the access terminals based on the service ID of the target service. The method according to claim 1,
The step of assigning the service ID includes:
A device ID is assigned to the access terminal, and the device ID is mapped to a routing address and stored in the device ID DB. The method according to claim 1,
Characterized in that the service ID comprises a cache bit, a serial number and a segment flag. The method according to claim 1,
The step of assigning the service ID includes:
Wherein a service ID is assigned to a service held by each access terminal, and a service ID is given based on a hash value corresponding to each service. 5. The method of claim 4,
Wherein relaying the communication comprises:
A data packet and a response packet between the first terminal and the second terminal, wherein the header of the packet includes information on the hash algorithm used to generate the service ID . The method according to claim 1,
Wherein relaying the communication comprises:
Setting a path from the first terminal to the second terminal based on the device ID; And
And forwarding the inter-arrival packet generated by the first terminal according to the path. The method according to claim 6,
Wherein relaying the communication comprises:
If the caching corresponding to the interleave packet is present during the transmission of the interleave packet according to the path, the data packet generated based on the caching is transmitted to the first terminal, and if there is no caching, And forwarding the generated data packet to the first terminal in response to the interpreting packet. A computer-readable recording medium on which a program for carrying out the method according to claim 1 is recorded. A computer program stored in a recording medium for performing the method of claim 1, which is performed by a communication system. And a resolver for giving a device ID to the access terminal and giving a service ID to the service held by each access terminal. 11. The method of claim 10,
And a matcher that sets a communication path between the access terminals based on the device ID. 12. The method of claim 11,
And an SDN controller for controlling an SDN switch for transferring packets between the access terminals based on the path.

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