Electronics and Telecommunications Research Institute

Korea Research Institute of Bioscience and Biotechnology

Jae Su Song

Seung Kwon Baek

Seung-Hwan Lee

Seok Seo

Yunhee Cho

Sung Hyun Moon

Cheul Soon Kim

Gi Yoon Park

Ok Sun Park

Won Ik Kim

Jae Heung Kim

Seung-Kwon Baek

Mi Young Yun

Moon-Hee Sung

Kwang Soo Kim

Seong Chul Cho

Seung-Pyo Hong

Seung-Goo Lee

Chul-Joong Kim

Seung Kwon Cho

Yun Hee Cho

Joong-Jae Kim

Sung-Keun Rhee

Dae-Joong Kang

Su-Mi Kim

Jin-Woo Bae

Che Ok Jeon

Il Gyu Kim

Eun Kyung Kim

Seung Hwan Lee

Dong Seung Kwon

Tae Joong Kim

Hee Sang Chung

Seok Ki Kim

Hyung Jin Kim

Pyeong Jung Song

Soo Jung Jung

Yeon Seung Shin

Jin Up Kim

Go San Noh

Jung Hoon Oh

Jun Hyeong Kim

Jin-Up Kim

Nak Woon Sung

Nam Suk Lee

Man Ho Park

Min Suk Choi

Sang Woo Nam

Sei Yun Shin

Sung Pil Shin

Bong Ju Lee

A method of a transmitting terminal may include: determining a beam candidate set including two or more beams usable for sidelink communication with a receiving terminal from among a plurality of beams that can be beam-formed; determining a resource set for each beam within the beam candidate set through resource sensing, such that the resource set has candidate resources equal to or greater than a predetermined number of candidate resources; selecting a beam and a resource to be used for sidelink communication with the receiving terminal based on the beam candidate set and the resource set; and transmitting sidelink data to the receiving terminal using the selected beam and the selected resource.

Method and apparatus for selecting resources for beam-based sidelink communication and sidelink communication using the same

An operation method of a relay terminal may include: receiving, from a first base station to which the relay terminal is connected, a first area identifier for a first area corresponding to the first base station; generating a first virtual area identifier distinct from the first area identifier; transmitting the first virtual area identifier to a first remote terminal connected to the first base station through relaying of the relay terminal; performing a first area update procedure triggered by the first remote terminal based on the first virtual area identifier; and storing a first temporary identifier obtained based on the first area update procedure, wherein the first temporary identifier is used for a paging procedure for the first remote terminal.

Method and apparatus for managing mobility in communication system

Disclosed are various methods for transmitting or receiving data or control information having high reliability conditions. A method for operating a terminal which transmits uplink control information (UCI) includes: a step of generating UCI; a step of comparing the priority of an uplink (UL) control channel for the transmission of the UCI with the priority of a UL data channel when some symbols of the UL control channel and the UL data channel overlap; and a step of selecting the UL channel having a higher priority among the UL control channel and the UL data channel, and transmitting the UCI to a base station through the selected UL channel.

Method for transmitting data or control information having high reliability conditions, and device therefor

Disclosed are methods and apparatuses for transmitting and receiving data channels in a communication system. An operation method of a terminal in a communication system may comprise receiving, from a base station, resource allocation information of a plurality of physical uplink shared channels (PUSCHs) used for repetitive transmission of a same transport block (TB); identifying a position of each of the plurality of PUSCHs in a time domain based on the resource allocation information; and repeatedly transmitting the same TB to the base station at the position of each of the plurality of PUSCHs. Therefore, performance of the communication system can be improved.

Method for transmitting and receiving data channel based on a plurality of symbol sets communication system and apparatus for the same

An operation method performed by a remote terminal in a communication system includes: receiving a discovery signal from each of one or more neighboring terminals; performing a measurement operation on the discovery signal; determining at least one candidate terminal from among the one or more neighboring terminals based on a result of the measurement operation; selecting a relay terminal within the at least one candidate terminal; and performing a sidelink setup procedure with the relay terminal.

Method for discovering and selecting relay user equipment in communication system

Method for transmitting and receiving data channel based on a plurality of physical uplink shared channels in communication system and apparatus for the same

A security key management method performed in a PDCP layer of a terminal dual-connected to a first cell and a second cell may comprise receiving a PDCP PDU on which ciphering or integrity protection to which a first security key of the first cell or a second security key of the second cell is applied is performed; performing at least one of integrity verification and header decompression for the PDCP PDU based on the first security key; performing at least one of integrity verification and header decompression for the PDCP PDU based on the second security key; and determining a security key applied to the PDCP PDU, based on result of the at least one of integrity verification and header decompression based on the first security key and result of the at least one of integrity verification and header decompression based on the second security key.

Method for managing security key of mobile communication system, and apparatus therefor

Disclosed are a method and an apparatus for configuring a path in a communication system including an Xhaul network. A method for changing a path, performed by a first XDU, may comprise receiving from the XCU a path setup request message requesting to change a first path between the second XDU and the third XDU to a second path between the first XDU and the third XDU; receiving an SN status transfer message including an SN of data for the third XDU from the second XDU belonging to the first path, when the path setup request message is received; receiving from the second XDU the data corresponding to the SN indicated by the SN status transfer message; configuring the second path with the third XDU; and transmitting the data received from the second XDU to the third XDU through the second path.

Method and apparatus for configuring path in communication system including Xhaul network

An operation method of a first communication node in a communication network, which supports a radio link control (RLC) function among functions of a base station, may comprise receiving a first message from a second communication node supporting a packet data convergence protocol (PDCP) function among the functions of the base station; processing the received first message by performing the RLC function; and transmitting the processed first message to a third communication node supporting a medium access control (MAC) function and physical (PHY) functions among the functions of the base station.

Operation method of communication node in communication network

An operation method of a first communication node, which controls a plurality of communication nodes included in a mobile xhaul network supporting mobility, may comprise performing an attach procedure between the first communication node and a second communication node among the plurality of communication nodes; configuring a path for communications between the second communication node and a third communication node for which attach procedure has been completed among the plurality of communication nodes; and supporting communications of the second communication node and the third communication node using the configured path.

Operation method of communication node supporting mobility in communication network

A receiving device and method using a single RF chain includes a reception antenna module radiating a plurality of orthogonal beam patterns to receive a signal, a single RF chain processing a reception signal from the reception antenna module, a signal component extracting unit extracting a reception signal component corresponding to each beam pattern using the reception signal received through the reception antenna module and the single RF chain and a code value previously allocated to the plurality of beam patterns, and a beam pattern controller controlling a beam pattern radiated by the reception antenna module.

Receiving device and method using single RF chain

In a cellular communication system including a plurality of cells, a resource allocation apparatus of a base station determines a resource division ratio of a present resource frame using a traffic load of a plurality of cells that are measured for an immediately preceding resource frame and marginal utility of each partition, divides a present resource frame into a plurality of partitions according to the determined resource division ratio, and allocates a plurality of partitions to a user.

Method and apparatus for allocating resource

A method and apparatus for a terminal to access a base station in a heterogeneous environment are provided. The terminal acquires RAT (Radio Access Technology) selection criteria based on reference information. Then, the terminal selects, for each service, at least one of multiple transceivers that provide access to the base station according to the RAT selection criteria, and provides the corresponding service by accessing the base station through the selected transceiver.

Method and apparatus for accessing base station by service

Provided is an antenna apparatus equipped with a single RF chain. The antenna apparatus includes: a combiner configured to divide omnidirectional space into N sectors to perform a sector sweep, combine a reception signal received via the single RF chain for each sector and calculate a gain of a composite signal; a comparator configured to determine a gain magnitude of the composite signal; and a controller configured to perform a beam-forming according to a comparison result of the gain magnitude of the comparator.

Antenna apparatus and method for beam forming thereof

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Daejeon, South Korea

Jae Su Song