Samsung Electronics Co., Ltd.

Yonsei University

Jonghyun Bang

Jinyoung Oh

Jeongho Yeo

Sungjin Park

Hyunseok Ryu

Cheolkyu Shin

Taehyoung Kim

Younsun Kim

Taehan Bae

Seunghoon Choi

Jinkyu Kang

Suha Yoon

Jinhyun Park

Anil Agiwal

Youngbum Kim

Hyoungju Ji

Jungmin Park

Hyunsoo Kim

Heedon Gha

Heecheol Yang

Daesik Hong

Methods and apparatuses are provided for performing communication in a wireless communication system is provided. A number of hybrid automatic repeat request (HARQ) processes is set as N. The N is a natural number, one value within a maximum value, 16, and set based on a configuration of a base station (BS). Downlink control information (DCI) is received including a 1-bit HARQ-acknowledgment (HARQ-ACK) feedback request for all of N HARQ processes. HARQ-ACK information associated with all of the N HARQ processes is identified, based on the received DCI. A number of bits for the HARQ-ACK information is defined based on xN by the configuration, and the x is a natural number. The HARQ-ACK information is transmitted to the BS.

Method and apparatus for transmitting and receiving data and feedback in wireless communication system

A method performed by a terminal in a wireless communication system is provided. The method includes receiving, from at least one other terminal, at least one physical sidelink shared channel (PSSCH), in response to the receiving of the at least one PSSCH, determining the number of at least one physical sidelink feedback channel (PSFCH) based on the maximum number of the at least one PSFCH for simultaneous transmission, and transmitting, to the at least one other terminal, one or more PSFCHs, based on the number of the at least one PSFCH.

Method and apparatus for controlling UE transmission power in wireless communication system

A method, performed by a base station (BS), of indicating a channel occupancy time of an unlicensed band is provided and includes transmitting physical downlink control channel (PDCCH) configuration information to a user equipment (UE), performing a channel access procedure to occupy a channel of the unlicensed band, and transmitting slot format indicator information about at least one slot within a channel occupancy time occupied by performing the channel access procedure, based on the PDCCH configuration information, wherein the slot format indicator information is determined based on at least one of a maximum channel occupancy time of the BS or the channel occupancy time occupied by performing the channel access procedure.

Method and apparatus for indicating channel occupancy time in wireless communication system

The present invention relates to a method and a device for a channel access procedure in a wireless communication system. More specifically, the present invention relates to a method for performing a channel access procedure by a base station in a specific direction (or beam) in an unlicensed band. More specifically, the present invention proposes a method for configuring and generating downlink control information by a base station in order to transmit, to a terminal, a result of a channel access procedure performed in a specific direction, and a method for determining the information by the terminal. A method of a terminal in a communication system according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, downlink control information (DCI) for scheduling of uplink signal transmission; checking beam-related information which is included in the DCI and indicates a beam for the uplink signal transmission; and performing the uplink signal transmission to the base station without a channel access procedure of the terminal on the basis of the beam indicated by the beam-related information.

Method and apparatus for determining channel access procedure in wireless communication system

A method performed by a user equipment (UE) is provided. The method includes receiving resource configuration information for a sidelink; identifying a set of slots based on a subcarrier spacing configured for the UE; based on a bitmap included in the resource configuration information, identifying at least one slot for a sidelink resource, among the identified set of slots except specific slots, wherein the specific slots include a slot configured for a sidelink synchronization signal, a slot in which at least one symbol included in a subset of the slot is not configured as an uplink (UL) and a reserved slot; and transmitting a physical sidelink shared channel (PSSCH) on the identified at least one slot.

Method and apparatus for managing resource pool in wireless communication system

The present disclosure relates to a communication technique for combining IoT technology with a 5G communication system for supporting a higher data transmission rate than 4G communication systems, and a system therefor. The present disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security- and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The present disclosure relates to a method and device for transmitting and receiving control information.

Method and device for transmitting and receiving control information in wireless cellular communication system

Disclosed are: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smartcars or connected cars, healthcare, digital education, small businesses, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. A method of a terminal in a communication system, according to one embodiment of the disclosure, can comprise the steps of: receiving, from a base station, downlink control information (DCI) associated with sidelink transmission; confirming a preparation time associated with the sidelink transmission; and performing the sidelink transmission on the basis of the DCI if a first timing associated with the sidelink transmission determined on the basis of the DCI is after the preparation time from a second timing associated with the DCI reception.

Processing time determination method and device of terminal in wireless vehicle communication system

A method and an apparatus for transmitting and receiving downlink control information in a wireless communication system are provided. The method of the terminal includes receiving uplink configuration information from a base station, receiving, from the base station, downlink control information (DCI) including information related to activation of grant-free uplink transmission, identifying the information related to the activation of the grant-free uplink transmission, based on the uplink configuration information, and transmitting an uplink signal to the base station, based on a result of the identifying.

Method and apparatus for transmitting and receiving downlink control information in wireless communication system

The disclosure relates to a method and apparatus by which a transmission terminal allocates resources in a vehicle-to-everything (V2X) system. An operating method of a terminal in a wireless communication system may include identifying a first candidate resource set for sidelink communication in a first resource selection window, through sensing based on first sidelink control information (SCI) received in a first sensing window, identifying a second candidate resource set for sidelink communication in a second resource selection window, through sensing based on second SCI received in a second sensing window, determining, based on the second SCI, whether to perform pre-emption or re-evaluation for a first resource, and when it is determined to perform the pre-emption or the re-evaluation for the first resource, triggering re-selection of resources for sidelink communication, and reporting the first resource for which the pre-emption or the re-evaluation has been performed, and the second candidate resource set to a higher layer of the terminal.

Method and device for allocating resource in V2X system

A method of operation of a terminal in a wireless communication system includes receiving a synchronization signal block (SSB) from a base station, decoding a master information block (MIB) included in the SSB, identifying a value based on at least one of subcarrier spacing (SCS) of the MIB, subcarrier offset for the SSB, and a reserved bit included in the SSB or MIB, and determining whether setting information related to a phase tracking reference signal (PTRS) is included in a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) for initial connection, based on the identified value.

Method and apparatus for transmitting and receiving reference signal in wireless communication system

The disclosure relates to a communication method for converging an IoT technology with a 5G communication system for supporting a higher data transfer rate beyond the 4G system; and a system therefor. The disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety services, etc.), based on 5G communication technologies and IoT-related technologies. A method and terminal are provided. The method includes receiving first sidelink control information (SCI) and first data corresponding to the first SCI, the first SCI including first priority information, receiving second SCI and second data corresponding to the second SCI, the second SCI including second priority information, identifying whether first feedback information associated with the first data or second feedback information associated with the second data is transmitted based on the first priority information or the second priority information when a resource for the first feedback information and a resource for the second feedback information are overlapped, and transmitting one of the first feedback information or the second feedback information which is associated with higher priority.

Method and device for transmitting or receiving groupcast feedback in wireless cellular communication system

The present disclosure relates to a communication technique for merging, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security-and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure discloses a method and apparatus for transmitting and receiving downlink grant-free-based data.

Method and apparatus for periodically transmitting and receiving data in wireless communication system

The disclosure relates to a method performed by a terminal in a wireless communication system, including identifying a first physical downlink control channel (PDCCH) that schedules a first physical downlink shared channel (PDSCH), identifying a second PDCCH that schedules a second PDSCH, and receiving the first PDSCH and the second PDSCH that are at least partially overlapped at least in time, in case that the first PDCCH scheduling the first PDSCH and the second PDCCH scheduling the second PDSCH are associated with different control resource sets (CORESETs).

Method and device for determining transmission time in wireless communication system

The present disclosure relates to a communication technique for combining 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 can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety-related services, and the like) on the basis of 5G communication technologies and IoT-related technologies. According to various embodiments of the present disclosure, a method of a first terminal (user equipment, UE) in a wireless communication system may comprise the steps of: when reception of a first physical sidelink feedback channel (PSFCH) for a first physical sidelink shared channel (PSSCH) and transmission of a second PSFCH for a second PSFCH overlap in a time domain, determining a PSFCH on the basis of first sidelink control information (SCI) related to the first PSFCH and second SCI related to the second PSFCH; and transmitting or receiving feedback information through the determined PSFCH.

Apparatus and method for transmitting or receiving signal in wireless communication system

An operating method of a user equipment (UE) for time domain resource assignment of a data channel in a wireless communication system, the operating method including: receiving control information related to the time domain resource assignment of the data channel from a base station via a physical downlink control channel (PDCCH) and upper layer signaling, and determining the time domain resource assignment of the data channel, based on the received control information.

Growing community of inventors

Suwon-si, South Korea

Jonghyun Bang