Electronics and Telecommunications Research Institute

Samsung Electronics Co., Ltd.

Lucky Limited

University-Industry Cooperation Group of Kyung Hee University

Industry-Academic Cooperation Foundation, Chosun University

Korea Research Institute of Chemical Technology

Sung Kyung Kim

Sung Cheol Chang

Chul Sik Yoon

Won-Ik Kim

Hyun Jun Lee

Kwang Jae Lim

Eunkyung Kim

Seokki Kim

Mi Young Yun

Hyun-jae Kim

Jee Hwan Ahn

Soojung Jung

Hyung Jin Kim

Seungkwon Cho

Jae Sun Cha

Chanho Yoon

Jee Hyeon Na

Dong Seung Kwon

Jong Chan Lim

DongSeung Kwon

Kyung Sook Kim

Een Kee Hong

Mi-Young Yun

Seokjoo Shin

Woo H Kim

Hyun Jin Kim

Young-Ho Jung

Hyun-Jae Kim

Sung-Geun Jin

Jihoon Choi

Ji Hye Park

Jung Mo Moon

Dae Ik Kim

Young Jick Bahg

Yeon Soo Lee

Yunhee Cho

Ge Hyeong Lee

Kwang Won Lee

Gyu Hwan Yon

Jeehyeon Na

Hyeon Kyu Lee

Chwang Siek Pak

Eun Bok Choi

Heui Cheol Yang

Woo B Choi

Yo S Rew

Young H Rhee

Choon S Ra

Bon Y Jung

Man Y Yoon

Namgi Kim

Suyoung Ahn

Joonpyo Hong

Jeongho Kwak

Joo Sun Bang

Ye Ok Jang

Eun Hyung Cho

Seok Heon Cho

Heung T Kim

Young R Chung

Tae S Kwon

Hee M Oh

Seong N Kim

Sei-chang Ahn

Jinho Cho

Yong-Hwan Lee

Sung W Chun

Bong J Park

A method of managing intercell interference in a network and an apparatus for performing the method are disclosed. The method of managing intercell interference by a base station included in the network includes selecting a beam pattern from among a plurality of beam patterns for transmitting and receiving data between the base station and users included in the network, activating a beam corresponding to the selected beam pattern, performing a user's scheduling on users included in the activated beam, and allocating transmission power to the activated beam to transmit and receive data to and from the users selected by the user's scheduling.

Method of managing intercell interference in network and apparatus for performing the method

An operation method of a transmitting apparatus in a multi-connection based mobile communication system includes generating combined data by combining data and an extended information element (IE), when the data received from a serving gate way (SGW) or a core network is determined to be transmitted to a receiving apparatus; transmitting the combined data to the receiving apparatus; and receiving, from the receiving apparatus, feedback information indicating whether or not the receiving apparatus normally receives the combined data.

Method for communicating in multi-connection based mobile communication system and apparatus for the same

A data transmission method and apparatus initialize an index of a modulation and coding scheme (MCS) for transmitting data to a terminal, adjust the index of the MCS based on at least one of a hybrid automatic repeat request (HARM) feedback of the terminal and a channel quality of the terminal, and transmit the data to the terminal based on the adjusted index of the MCS.

Method and apparatus for transmitting data

Disclosed are a method and an apparatus that reflect the quantity of wireless resources allocatable to a user terminal in a scheduling target cell to calculate the quantity of available wireless resources for quality of service (QoS) requirements for each kind of varied traffic of user terminals and a metric having a flexible weight for the QoS requirements and support efficient wireless resource scheduling among the user terminals.

Method and apparatus for wireless resource scheduling with guaranteed QoS in mobile communication system

Disclosed are a method and a terminal for a distributed access. The terminal maps data channels to be allocated in a plurality of data channels included in a frame and map scheduling priorities. In this case, the terminal determines positions of resources of a first message as a resource request message and a second message as a response message for the first message in the first channel.

Method and terminal for distributed access

A discovery signal that a first device joining in direct communication broadcasts through a radio channel is provided. The discovery signal includes a first field representing whether the discovery signal is a signal for discovering a device or a signal for discovering a service, and a second field including one of device identifier information of the first device and service information of a service that the first device provides according to a value of the first field.

Discovery signal transmitted in direct communication system, and method of transmitting/receiving the discovery signal

A method for communication of a base station includes: receiving first data from a first terminal; transmitting the first data to a second terminal by local forwarding without passing through an access service network (ASN); receiving second data from the second terminal; and transmitting the second data to the first terminal without passing through the ASN.

Method for communication of base station, terminal and relay station

A synchronization method by a device is provided in a device-to-device direct communication. The device receives synchronization signals from a plurality of other devices at a current frame, and estimates a synchronization time at a next frame based on the synchronization signals received from the other devices.

Synchronization method and apparatus in device-to-device direct communication

A signaling method for a terminal that performs direct communication between terminals terminal is disclosed. A transmitting terminal transmits a link establishment request message for establishing a link to a receiving terminal, and the receiving terminal transmits a link establishment response message responding to this message to the transmitting terminal. The link establishment request message includes a field indicating a flow to use if the receiving terminal acquires a token.

Signalling method for direct communication between terminals

In a direct communication between terminals, a terminal transmits a synchronization channel preamble part after transmitting a synchronization channel message part including synchronization information. The terminal receives a dedicated channel including a direct communication packet after transmitting the synchronization channel preamble part. A transition time gap for switching from transmission to reception may be inserted to an end of the synchronization channel preamble part.

Method and apparatus for transmitting synchronization channel, and method and apparatus for receiving synchronization channel

A communication method of a terminal that can operate in a relay mode or a base station mode is provided. When the terminal, having received a service from a first base station, detects that a service connection to the first base station is unavailable, the terminal searches for a second base station, which is an available neighboring base station. The terminal transmits a ranging request message including a base station identifier of the first base station to the second base station.

Terminal and communication method thereof

A method in which a transmitting terminal included in an talk-around direct communication (TDC) network transmits data includes: determining a data frame for transmitting the data; requesting to reserve a data transmission segment included in the data frame through a transmission request segment included in the data frame; receiving a response signal transmitted in a transmission response segment included in the data frame; and analyzing the response signal and transmitting the data through the data transmission segment.

Method of transmitting and receiving data in talk-around direct communication network

Referring to FIG., if the direct communication terminal, among the direct communication terminalsandreceiving a downlink multicast service from the base stationthrough the forwarding terminal, wants to be a talker, the direct communication terminalperforms a unicast connection establishment procedure with the forwarding terminal, in order to transmit an uplink unicast packet.

Method of direct communication between terminals respectively connected and unconnected to base station

A group communication method of a terminal is provided. The terminal establishes a group call connection with a first base station belonging to a group call zone, and receives group call data from the first base station. When moving to the coverage area of a second base station belonging to the group call zone, the terminal receives group call data from the second base station.

Group communication method and apparatus

A method of managing a resource is provided by a base station. The base station allocates a resource to a terminal, and generates a downlink control channel including information of the allocated resource and a transmission time of a next downlink control channel. Further, the base station transmits the downlink control channel to the terminal.

Method and apparatus for managing resource

Growing community of inventors

Daejeon, South Korea

Sung Kyung Kim