Electronics and Telecommunications Research Institute

University-industry Cooperation Group of Kyung Hee University

Industry-university Cooperation Foundation Hanyang University

Kyungpook National University Industry-academic Cooperation Foundation

Ideahub Inc.

Korean Broadcasting System

Nextwill Co., Ltd.

Seoul, Republic of Korea

Nam Ho Hur

Won Sik Cheong

Sung Ik Park

Gun Bang

Heung Mook Kim

Gwang Hoon Park

Kyung Yong Kim

Gwang Soon Lee

Kug Jin Yun

Dong Joon Choi

Hoi Yoon Jung

Gi Mun Um

Jin Young Lee

Young Su Heo

Soo In Lee

Hyoung Soo Lim

Joon Young Jung

Yoon Jin Lee

Eun Young Chang

Hong Chang Shin

Young Su Kim

Tae One Kim

Hyun Jeong Yim

Hyoung Jin Kwon

Han Seung Koo

Jae Ho Lee

Gi-Mun Um

Myung Sun Baek

Sang Jung Ra

Jeong Chang Kim

Chan Soo Kim

Ho Min Eum

Sang Woon Kwak

Jae Hyun Seo

Eung Don Lee

Je Won Lee

Joung Il Yun

Hong-Chang Shin

Jin Hyuk Song

Jae Hwui Bae

Kwanghee Jung

Yang Su Kim

Seok Ki Ahn

Young Woo Suh

Sung Jun Ahn

Jae Kwon Lee

Hyun Jae Lee

Sun Young Lee

Soon Choul Kim

Hyoungsoo Lim

Dong Seog Han

Euee Seon Jang

Min Seong Lee

Ho Sub Lee

Woo Woen Gwun

Young Kwon Hahm

Sun Hyoung Kwon

Hun Hee Lee

Won Gi Seo

Hye Ju Oh

Byung Jun Bae

Dai Yong Kim

Myung Sun Beak

Ha Kyun Mok

Ju Byung Kim

Il Soo Kyung

Seok Jong Hong

Myung Chul Park

Byeong Wook Min

Sung Jae Yoon

Kwang Hee Jung

An operation method of a terminal in a communication system may comprise: receiving downlink control information (DCI) for scheduling uplink transmission from a base station; identifying a communication node initiating a channel occupancy time associated with the uplink transmission based on a channel access parameter included in the DCI; and performing the uplink transmission scheduled by the DCI within the channel occupancy time initiated by the communication node, wherein the communication node is the terminal or the base station.

Method and apparatus for channel access in communication system supporting unlicensed band

An operation method of a terminal in a communication system may comprise: receiving, from a base station, a higher layer message including information indicating that first DCI including a HARQ feedback enabled/disabled indicator is configured; receiving the first DCI from the base station; receiving first downlink data from the base station based on first scheduling information included in the first DCI; and determining whether to transmit a first HARQ response for the first downlink data based on the HARQ feedback enabled/disabled indicator included in the first DCI.

Method and apparatus for transmitting and receiving feedback information in communication system

Disclosed are a method and an apparatus for transmitting and receiving a signal including cell information in a communication system. An operation method of a terminal comprises the steps of: receiving a first SS/PBCH block from a base station; receiving a second SS/PBCH block from the base station after receiving the first SS/PBCH block; and confirming information included in the first SS/PBCH block and the second SS/PBCH block by performing a combining operation on the first SS/PBCH block and the second SS/PBCH block when a transmission beam of the first SS/PBCH block is the same as a transmission beam of the second SS/PBCH block. Therefore, the performance of a communication system can be improved.

Method and apparatus for transmitting and receiving signal including cell information in communication system

An operation method of a terminal in a communication system may comprise: performing a monitoring operation to receive BWP configuration information for common downlink communication; in response to receiving the BWP configuration information from the base station, configuring a common frequency region for the common downlink communication based on the BWP configuration information; receiving DCI including scheduling information of the common downlink communication from the base station; and performing the common downlink communication with the base station in the common frequency region by using a frequency resource indicated by the scheduling information, wherein the common downlink communication is communication between the base station and a plurality of terminals including the terminal.

Method and apparatus for transmitting and receiving broadcast signal in communication system

A method and an apparatus for transmitting/receiving a signal by using a variable band width in a communication system are disclosed. An operating method of a terminal comprises the steps of: receiving, from a base station, first configuration information about one or more guard bands of an unlicensed band; confirming the one or more guard bands configured in the unlicensed band on the basis of the first configuration information; and confirming a plurality of RB sets configured in the unlicensed band on the basis of the one or more guard bands. Therefore, performance of the communication system can be improved.

Method and apparatus for transmitting/receiving signal by using variable band width in communication system

Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

Image encoding method using a skip mode, and a device using the method

Disclosed are a method and an apparatus for transmitting or receiving feedback information in a communication system. An operation method of a terminal comprises the steps of: receiving, from a base station, DCI #1 including scheduling information of PDSCH #1 and transmission resource information of HARQ response #1 with respect to PDSCH #1; receiving, from the base station, DCI #2 including scheduling information of PDSCH #2 and transmission resource information of HARQ response #2 with respect to PDSCH #2; and when the transmission resource information of HARQ response #1 is configured as undefined, transmitting, to the base station, HARQ response #1 and HARQ response #2 by using a resource indicated by the transmission resource information of HARQ response #2. Therefore, the performance of the communication system can be improved.

Method and apparatus for transmitting or receiving feedback information in communication system

A method for transmitting and receiving slot setting information in a communication system is disclosed. An operating method of a UE comprises the steps of: receiving, from a base station, a first upper layer message including SFI for indicating a format of a slot; receiving, from the base station, DCI or a second upper layer message for indicating a use of a flexible symbol belonging to the slot set by the SFI; and determining the flexible symbol belonging to the slot as a DL symbol or a UL symbol on the basis of the second upper layer message or the DCI. Therefore, a performance of a communication system can be improved.

Method for transmitting and receiving slot setting information in communication system

A method for transmitting and receiving system information in a communication system is disclosed. An operation method of a UE comprises the steps of: checking minimum system information included in an SS/PBCH block received from a base station; receiving a PDCCH in a control resource set indicated by the minimum system information; checking a time-frequency resource through which a PDSCH including RMSI is to be transmitted, on the basis of scheduling information included in the PDCCH; and acquiring the RMSI from the PDSCH received in the time-frequency resource. Therefore, the performance of the communication system can be improved.

Method for transmitting and receiving system information in communication system

A method for transmitting and receiving scheduling information in a communication system is disclosed. A method for operating a UE comprises the steps of: receiving, from a base station, a control channel including scheduling information of first data in slot #n; receiving, from the base station, a data channel including the first data and second data in the slot #n; receiving, from the base station, a control channel in slot #n+k, the control channel including PI indicating a transmission position of the second data in the slot #n; and demodulating the data channel on the basis of the scheduling information and the PI. Therefore, the performance of a communication system can be improved.

Method for transmitting and receiving scheduling information in communication system

Provided is a method of processing MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining a duration flag indicating whether duration information of the at least one access unit is valid, in a corresponding MPU; and inserting the duration flag into a header of the corresponding MPU.

Method and system for processing MPEG data

Provided is a method of supporting a random access of MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining an initialization flag indicating whether the at least one access unit includes all of data required for initialization of a decoding process, in the at least one MPU; and inserting the initialization flag into a header of the at least one MPU.

Method and system for supporting random access of MPEG data

Growing community of inventors

Daejeon, South Korea

Nam Ho Hur