Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Kibeom Park

Eunjin Choi

Jae-Gon Kim

Seung Won Shin

Hyunho Shin

Seung Hyeon Lee

Ilhwan Jeong

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). Methods of operating a device for controlling a flow rule in a software-defined network (SDN), according to various embodiments, comprise: an operation of receiving a physical address request packet for a first host to communicate with a second host from a first network device connected with the first host; an operation of transmitting the received physical address request packet to a second network device connected with the second host; an operation of generating a flow rule relating to a transmission path of a data packet transmitted from the first host to the second host, on the basis of the physical address of the first host and the physical address of the second host, when a physical address response packet including the physical address of the second host is received from the second network device as a response to the physical address request packet; and an operation of transmitting the generated flow rule to the first network device and the second network device, so that the first network device and the second network device transmit the data packet on the basis of the flow rule.

Device and method for setting transmission rules of data packet in software defined network

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). Provided are a method and an apparatus for network quality management. An operating method of a controller apparatus for measuring a network quality according to various embodiments of the present disclosure comprises the steps of: receiving a message including information on targets, the network quality of which is to be measured; determining a path between the targets; transmitting information on the path to at least one different network element (NE); and transmitting a measurement request message to at least one of the targets so as to measure the network quality on the basis of the information on the path. Therefore, the method and the apparatus according to various embodiments of the present disclosure can efficiently manage the quality of a network.

Method and apparatus for managing network quality in communication system

A device and a method for managing and controlling an end-to-end network in a wireless communication system are provided. The management device for controlling an end-to-end network in a wireless communication system includes a network slice manager configured to configure network slices for a terminal, a policy manager configured to set a policy applied to the network slices and a software defined network (SDN) device configured to control one or more network entities related to transmission of traffic for the network slices, based on the policy, wherein each of the network slices are configured for a different frequency band.

Management device and method for controlling end-to-end network in wireless communication system

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides an apparatus and a method for handling a network attack in a software defined network (SDN). The method for handling a network attack in an SDN according to various embodiments of the present disclosure includes detecting a first candidate of the network attack in a flow during a first time interval, in response to detecting the first candidate, changing quality of service (QoS) of the flow from first QoS to second QoS, detecting a second candidate of the network attack in the flow of the second QoS during a second time interval following the first time interval, and in response to detecting the second candidate, blocking the flow. The apparatus and the method according to various embodiments of the present disclosure may gradually block a network attack through multiple levels, to thus reduce the probability of determining a wrong network attack and to lower a recovery cost for network failure. Therefore, the apparatus and the method according to various embodiments of the present disclosure enable efficient network management.

Device and method for handling network attacks in software defined network

The present invention relates to a method and apparatus for managing quality in a mobile communication system and, more particularly, to a method and apparatus for managing user quality of experience (QoE) between various wired and wireless networks. A method for managing user quality of experience by means of an apparatus for managing user quality of experience in a mobile communication system, according to one embodiment of the present invention, comprises the steps of: setting a quality measurement request message by using a quality measurement condition received from a user; transmitting the quality measurement request message to a quality measurement device; and receiving information on the quality which is measured by using the quality measurement condition, wherein the quality measurement request message and the information on the quality are transmitted while being included in an OpenFlow message.

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Hwaseong-si, South Korea

Kibeom Park