Samsung Electronics Co., Ltd.

Ulsan National Institute of Science and Technology

University of Colorado

Yonsei University

Korea University Research and Business Foundation

University-industry Cooperation Group of Kyung Hee University

Jung-Shin Park

Yeong-Moon Son

Jin-Sung Lee

Ji-Cheol Lee

Ki-Suk Kweon

Han-Na Lim

Joo-Hyung Lee

Hong-Sung Chang

Geun-Hwi Lim

Hyun-Jeong Kang

Jae-Jeong Shim

Hyung-Ho Lee

Beom-Sik Bae

Antony Franklin

Rakesh Taori

Yong Chang

Dae-Gyun Kim

So-Hyun Kim

Nae-Hyun Lim

Ha-Kyung Jung

Yegin Alper

Young-Bin Chang

Jung-Soo Jung

Hyon-Goo Kang

Seung-Eun Hong

Jung-Je Son

Won-Il Roh

Sang-Jun Moon

Tae-Won Kim

Seung-Il Yoon

Bong-Gee Song

Alper Yegin

Kwang-Seop Eom

Chang-Hoi Koo

Hyoung-Kyu Lim

Kyung-Kyu Kim

Ok-Seon Lee

Kyung-Joo Suh

Jun-hyung Kim

Dong-Keon Kong

Ki-Back Kim

Kyunghan Lee

Jae-Woo Kwon

Sung-Ho Choi

Sung-Jin Lee

Hyun-Kyu Yu

Chi-Woo Lim

Seung-Hoon Park

Sang-Hoon Lee

Jae-Weon Cho

Jung-Won Kim

Sang-Wook Kwon

Song-Yean Cho

Hyun-Seok Ryu

Sung-Won Lee

Sang-Jin Kim

Se-Hoon Kim

Sang-Soo Jeong

Seong-Hyun Kim

Sang-Kyu Baek

Ho-Jae Lee

Chul-Ki Lee

Young-Joong Mok

Suk-Won Kim

Yeongmoon Son

Chang-Yeon Kim

Jun-Hwan Oh

Dae-woo Lee

Sangtae Ha

Sung-Tak Jang

Sang-Heon Pack

Beom Kwon

Seon-Goo Hwang

Veronica Kondratieva

Han-Eul Ko

Yoon-Jeong Ha

Han-Kyung Lee

Gaun-Hwi Lim

Gi-Jeong Kim

Young-Bin Im

Gi-Won Lee

Kwon-Young Kim

Hyung-Seok Ha

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 of cooperating with a plurality of base stations in a wireless communication system. A cloud cell is configured with a plurality of base stations that cooperate with each other for a mobile station and synchronizes user contexts for serving the mobile station among the plurality of base stations included in the cloud cell, and the plurality of base stations cooperate with each other to provide a communication service to the mobile station. The present disclosure reduces generation of a handover when the mobile station moves between base stations, and increases the data yield of the mobile station by transmitting and receiving data in cooperation with base stations in a cloud cell at a shaded area or a cell border.

Apparatus and method of cooperating with multiple base stations 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 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

The present disclosure relates to a 5G or a pre-5G communication system to be provided in order to support a higher data transmission rate than a 4G communication system such as LTE. The present invention provides a method for receiving, by a terminal, a mobile end service in a communication system, the method including: a step of ascertaining whether there exists a continuously available service among services which have been provided from a serving base station, on the basis of a list of supported services received from a target base station; and in the case that there exists a continuously available service, a step of transmitting a service area update request to the target base station via a connection layer if the continuously available service supports a mobile end service.

Method and a base station for receiving a continuous mobile terminated service in a communication system

The present invention relates to a 5G or pre-5G communications system for supporting a higher data transmission rate beyond a 4G communication system such as LTE. The present invention relates to a method and an apparatus for generating a packet in a mobile communication system. A method according to an embodiment of the present invention, which is a method for generating a packet from a device in a mobile communication system, comprises the steps of: generating a function-based packet and transmitting the packet to a target node, wherein the packet is characterized in that an internet protocol (IP) address is not included therein.

Method and apparatus for generating packet in mobile communication system

A method for performing a network entry procedure by a Mobile Station (MS) in a cloud cell communication system is provided. The method includes determining whether there is an arbitrary cloud cell member candidate Base Station (BS) as a cloud cell member candidate BS which has transmitted a downlink synchronization signal with a signal strength, if there is the arbitrary cloud cell member candidate BS, determining the arbitrary cloud cell member candidate BS as a final cloud cell member candidate BS which will perform a cooperative communication with the master BS, transmitting an access request message including information on the final cloud cell member candidate BS to the master BS, and receiving an access response message including information on a cloud cell member BS from the master BS.

Apparatus and method for performing network entry procedure in cloud cell communication system

The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as an LTE. The present invention relates to a method by which a proxy sets an initial window value in a wireless communication system, the method comprising: splitting a transmission control protocol (TCP) connection between a terminal and a server; extracting the information related to the terminal from the data received from the terminal; and setting the initial window value on the basis of a round trip time (RTT) value and a throughput value for each of terminal groups grouped on the basis of the information related to the terminal.

Method and apparatus for setting initial window value in wireless communication system

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

The present disclosure relates to a 5G or a pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. A method for controlling TCP congestion in a communication system provided in the present disclosure comprises the steps of: determining the maximum transmission rate of a network, while increasing the size of a congestion window at a predetermined time interval; determining a threshold transmission rate which is determined by a preset ratio with regard to the determined maximum transmission rate; and adjusting the size of the congestion window such that the current transmission rate is not less than the threshold transmission rate and the delay time is no longer than the maximum allowable delay time.

Method and apparatus for controlling congestion in 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). A method for operating a proxy apparatus in a wireless communication system includes receiving a plurality of packets from a plurality of servers, and transmitting, to base station, data of one bearer data including the plurality of packets. A proxy apparatus in a wireless communication system includes a communication device configured to receive a plurality of packets from a plurality of servers, and transmit, to base station, data of one bearer including the plurality of packets. A base station apparatus in a wireless communication system includes a communication device configured to receive, from a proxy apparatus, data of one bearer including a plurality of packets.

Apparatus and method for controlling speed of transmission layer in wireless communication 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

Seoul, South Korea

Jung-Shin Park