Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Seoul National University

University of Colorado

Kt Corporation

Sk Telecom Company, Ltd.

University-Industry Cooperation Group of Kyung Hee University

Hanaro Telecom., Inc.

Ji-Cheol Lee

Jung-Shin Park

Hyung-Ho Lee

Jin-Sung Lee

Han-Na Lim

Sung-Ho Choi

Ki-Suk Kweon

Hyun-Jeong Kang

Song-Yean Cho

Alper Yegin

Beom-Sik Bae

Joo-Hyung Lee

Sang-Jun Moon

Nae-Hyun Lim

Jung-Je Son

Young-Kyo Baek

Dong-Keon Kong

Jun-Hyuk Song

Hyoung-Kyu Lim

Sung-Won Lee

Ha-Kyung Jung

Sung-Jin Lee

Rakesh Taori

Kyung-Joo Suh

Jun-hyung Kim

Se-Hoon Kim

Yegin Alper

Haris Zisimopoulos

Yeong-Moon Son

Jung-Soo Jung

Duckey Lee

Hee-Won Kang

Wuk Kim

Eun-Tae Won

Yong Chang

Hae-Young Jun

Ji-Eun Keum

Geun-Hwi Lim

Chul-Sik Yoon

Jin-ho Lee

Bo-Gyeong Kang

Jong-Han Park

Erik Guttman

Tae-Sun Yeoum

Ki-Back Kim

Jai-Dong Kim

Antony Franklin

Jin-Hyeock Choi

Taekyoung Kwon

Sung-jin Lee

Heung-Chul Jung

Jung-Hwan Lim

Seok-Heon Cho

Sang-Do Lee

Sun-Hwa Lim

Mingxia Xu

Jong-Hyun Won

Kyeong-Tae Do

Hye-Won Baek

Sangtae Ha

Sung-Tak Jang

Eun-Young Chung

Dookyoon Han

Youngbin Im

Taejoong Chung

Hyun-Ah Oh

Emin Yegin Alper

Seon-Goo Hwang

Jong-Bum Pyo

Young-Bin Im

Tae-Yong Lee

Erik Guttmann

Haris Zisimo-Poulos

A 5G or pre-5G communication system is provided to support higher data transmission rates after 4G communication systems such as LTE. To support communication of a terminal that dually accesses a first radio access technology (RAT) communication system and a second RAT communication system, a session generation request message for transmitting traffic is received from a terminal. A target communication system that is to generate a data path with respect to the traffic from the first RAT communication system and the second RAT communication system is determined, the data path for the target communication system is configured, and information about the configured data path is transmitted to the terminal.

Data transmission/reception method and apparatus in wireless communication system that supports multi-radio access technology

A method and an apparatus for providing, setting, maintaining, and releasing a packet data network (PDN) connection on the basis of a local area in a wireless communication system are provided. The method includes receiving the PDN subscription information on the basis of the local area from a business operator server, inspecting whether the current location information for the terminal exists in the PDN subscription information on the basis of the local area, and starting a procedure for setting the PDN on the basis of the local area when the current location information exists therein.

Method and apparatus for managing packet data network connection on basis of local area in wireless communication system

The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services based on 5G communication technology and IoT-related technology (e.g. smart homes, smart buildings, smart cities, etc.). A method for receiving image data for a virtual-reality streaming service by an electronic device according to an embodiment of the present invention comprises: a step in which the electronic device determines whether to execute an adaptive virtual-reality streaming service on the basis of a bandwidth state; and a step in which, if it is determined to execute the adaptive virtual-reality streaming service, the electronic device requests and receives, from a server, the image data for the adaptive virtual-reality streaming service on the basis of head-tracking information and bandwidth information collected in advance.

Method and apparatus for transmitting and receiving image data for virtual-reality streaming service

A method for detecting a section where congestion occurs in a data transmission path by a user equipment (UE) comprises receiving a first probe packet, receiving a second probe packet, measuring an interval in time of reception between the first probe packet and the second probe packet, determining whether the measured time interval exceeds a threshold, and determining whether a bottleneck occurs using a result of the determination and information contained in the probe packets, wherein the information contained in the probe packets is information about the time interval between the probe packets and transmission rates of load packets.

Method and device for detecting congestion in data transmission path

The present invention relates to a method for transmitting an encrypted message at a transmission device, the method comprising: if a first user input to run a message application is detected, displaying a keyboard supporting a security mode; detecting a second user input to select the security mode; switching to the security mode in response to the second user input, and then receiving a message input by a user and temporarily storing the message; if a writing completion instruction of the message is detected on the keyboard, encrypting the message; and transmitting, to a reception device, the encrypted message.

Method and apparatus for transmitting and receiving encrypted message between terminals

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 relates to a method and a device for controlling traffic of an electronic device in a wireless communication system, and the method can comprise the steps of: detecting a plurality of parts of traffic flows corresponding to at least one application; and preferentially processing the plurality of parts of traffic flows on the basis of application related information on each of the detected plurality of parts of traffic flows.

Method and device for controlling traffic of electronic device in wireless communication system

The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate after a 4G communication system such as LTE. Disclosed is a method and device for providing a data service through a mobile communication network. The method of the present invention comprises the steps of: receiving a connection request message including a device identifier of a terminal which is not subscribed to a mobile communication network; determining, using the device identifier of the terminal, whether the terminal corresponds to a contract for using the mobile communication network; configuring the terminal to perform limited access to the mobile communication network according to the contract when the terminal corresponds to the contract for using the mobile communication network; and transmitting, to the terminal, a connection acceptance message granting the limited access.

Method and device for providing data service through mobile communication network

The present invention relates to a 5G or pre-5G communication system for supporting high data throughput beyond the 4G communication systems such as LTE. A method for a server for supporting the mobility of a user equipment (UE) in a mobile communication network comprises the steps of: establishing an IP flow with the UE utilizing a first IP address to transceive data; receiving a message comprising a second IP address allocated to the UE and an identifier for the IP flow; generating a tunnel interface for communicating with the UE having the second IP address as the ending IP address, and binding the IP flow allocated to the identifier to the generated tunnel interface; and transceiving data with the UE by means of the tunnel interface.

Method and apparatus for supporting mobility of user device in mobile communication network

A technique for providing a video streaming service is provided. A method of a mobile device for providing a video streaming service includes sending periodically location and moving path information of the mobile device to a first server, receiving bitrate information per location predicted according to a moving path of the mobile device, from the first server, determining a bitrate for a current location of the mobile device based on the predicated bitrate information per location of the mobile device, and requesting a second server to send video segments based on the bitrate.

Method for providing video streaming service and mobile device for same

Methods and apparatuses for controlling transmission control protocol (TCP) send buffers in communication systems are provided. The method includes identifying a current round-trip time (RTT) value and a minimum RTT value in the TCP and adjusting a size of the send buffer based on at least one of a current operation, the current RTT value, and the minimum RTT value in a congestion control scheme according to the TCP.

Method and apparatus for controlling send buffer of transmission control protocol in communication system

A method and an apparatus reduce overhead for data integrity checks in a wireless communication system. When receiving a message, a first Integrity Check Value (ICV) is compared with a second ICV to detect an integrity error in the message. When the integrity error exists in the message, a frequency of the integrity error is counted. When the frequency of the integrity error is more than a threshold, a key update procedure is performed. Therefore, the overhead of the information for integrity check may be reduced in the wireless communication system.

Method and apparatus for reducing overhead for integrity check of data in wireless communication system

The present invention relates to an apparatus and a method for accessing the web in a network system in which pre-fetching of web pages is supported. To that end, when DNS processing is requested, a user terminal provides URL information to which a connection is anticipated to a proxy server via a DNS server. The proxy server can, via the DNS server and by means of the URL information received from the user terminal, pre-fetch information about a web page to which a connection is anticipated via a user terminal. That is, the proxy server configures a TCP session with a web server before a TCP session configuration request is received from the user terminal. Furthermore, by acquiring and storing necessary web page information before an HTTP request from the user terminal is received, the proxy server can immediately provide the web page information which has been in storage in response to an HTTP request from the user terminal.

Apparatus and method for accessing web in network system

The present disclosure relates 5G or pre-5G communication systems for supporting higher data transmission rate than those by LTE or other post-4G communication systems. Disclosed are a method and apparatus for determining a window size in a wireless communication system. The method includes determining an uplink data rate of the UE on a wireless link, determining that a maximum data size transmittable through an internet session including the wireless link is the window size for the internet session based on the uplink data rate, and transmitting uplink data through the internet session based on the determined window size.

Method and apparatus for controlling uplink data transmission in wireless communication system

Growing community of inventors

Suwon-si, South Korea

Ji-Cheol Lee