Samsung Electronics Co., Ltd.

Cheolkyu Shin

Jeongho Yeo

Jinyoung Oh

Hyunseok Ryu

Sungjin Park

Jonghyun Bang

Youngwoo Kwak

Hoondong Noh

Seunghoon Choi

Younsun Kim

Taehyoung Kim

Youngbum Kim

Donghan Kim

Taehan Bae

Heedon Gha

Juho Lee

Hyojin Lee

Yongjun Kwak

Hyoungju Ji

Jinhyun Park

Sangsoo Jeong

Taeyoung Kim

Sung Hwan Won

Jinkyu Kang

Hyunil Yoo

Jeehwan Noh

Hyungju Nam

Junyung Yi

Seho Myung

Sangmin Ro

Hosung Kim

Anil Agiwal

Seungri Jin

Suha Yoon

Youngrok Jang

Heecheol Yang

Kyoungmin Park

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first UE in a wireless communication system includes identifying a transmission power for an SL-PRS based on a maximum power for a congestion control, and transmitting, to a second UE, the SL-PRS on an SL BWP based on the transmission power. In case that a resource for the SL-PRS is also used by a PSSCH, the maximum power for the congestion control is identified based on a CBR measured for the PSSCH and a priority level.

Method and apparatus for sidelink positioning in wireless communication system

The present disclosure relates to a communication method and system for converging a 5th generation (5G) communication system with a technology for Internet of Things (IoT) to support higher data rates beyond a 4th generation (4G) system. A method of a UE is provided. The method includes receiving, from a base station, configuration information including first information on a number of an additional demodulation reference signal (DMRS) symbol by higher layer signaling, receiving, from the base station, downlink control information (DCI) including second information on a time domain resource, identifying third information on a duration in symbols of a scheduled physical downlink shared channel (PDSCH) resource based on the second information, identifying a position of a DMRS symbol based on the first information and the third information, and receiving, from the base station, at least one DMRS based on the position of the DMRS symbol.

Method and apparatus for configuring demodulation reference signal information in wireless cellular communication system

In an embodiment of the disclosure, an operating method performed by a user equipment (UE) in a wireless communication system includes: receiving, from a base station (BS), an uplink resource configuration (configured grant) including a first quality of service (QOS) threshold and a sidelink resource configuration including a second QoS threshold; determining priority between uplink transmission and sidelink transmission, based on the first QoS threshold and the second QoS threshold; and transmitting at least one of uplink data or sidelink data, based on a result of the determining.

Sidelink resource determination and sidelink signal transmission and reception method and device in wireless communication system

A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes identifying whether a frequency band in which the UE operates corresponds to an unlicensed spectrum or a licensed spectrum, identifying a period for a transmission of a sidelink synchronization signal block (S-SSB) and a subcarrier spacing associated with the S-SSB, identifying a number of S-SSB transmissions within the period, and in case that the frequency band corresponds to the unlicensed spectrum, transmitting at least two S-SSBs, wherein the number of S-SSB transmissions relates to the subcarrier spacing and depends on whether the frequency band corresponds to the unlicensed spectrum or the licensed spectrum, and wherein a number of S-SSB transmissions in a case of the frequency band corresponding to the unlicensed spectrum is greater than a number of S-SSB transmissions in a case of the frequency band corresponding to the licensed spectrum.

Method and apparatus for sidelink synchronization signal transmission and reception in communication system based on unlicensed band

An operating method of a first user equipment (UE) in a wireless communication system according to an embodiment of the disclosure includes receiving downlink control information (DCI) for sidelink communication from a base station, transmitting sidelink data to a second UE, based on the received DCI, receiving feedback information about the sidelink communication through a physical sidelink feedback channel (PSFCH) from the second UE, determining transmission power for transmitting the feedback information to the base station, and transmitting the feedback information through a physical uplink control channel (PUCCH) to the base station, based on the determined transmission power.

Method and device for controlling transmission power of terminal in wireless communication system

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

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention presents a method for efficiently estimating a physical channel and, according to the present invention, a terminal of a communication system receives a synchronization signal from a base station, receives a broadcast channel from the base station, and can estimate the broadcast channel on the basis of the synchronization signal.

Method and apparatus for transmitting different uplink control information in wireless communication system

Disclosed are a communication method 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 disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related services, and the like) on the basis of a 5G communication technology and IoT-related technology. In addition, disclosed in the specification are: an adaptive retransmission method and device for delay reduction; a method and a device for selecting radio resource allocation and data size; and a method and a device for performing setting so as to enable different channels to share DMRS with each other.

Adaptive retransmission method and device for delay reduction in wireless cellular communication system

A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure relates to an effective grant-free based data transmission/reception method.

Method and apparatus for periodic data transmission and reception in wireless communication system

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a communication system is provided, which includes receiving, from a base station, configuration information for a resource pool; identifying one or more preconfigured sensing schemes for the resource pool based on the configuration information, wherein the one or more preconfigured sensing schemes include full sensing, partial sensing, random resource selection, or a combination of two or more of the full sensing, the partial sensing, and the random resource selection; and selecting a sensing scheme for resource selection from among the one or more preconfigured sensing schemes.

Method and device for sidelink resource allocation in wireless communication system

The present disclosure relates to a 5generation (5G) or pre-5G communication system for supporting a higher data transmission rate after a 4generation (4G) communication system such as Long Term Evolution (LTE). Various embodiments of the present disclosure propose a method for performing beam operation in consideration of a communication environment in a sidelink. According to various embodiments of the present disclosure, by proposing a method for performing beam operation when sidelink communication operates at a high frequency, coverage may be improved. According to various embodiments of the present disclosure, an operating method of a first terminal in a wireless communication system is provided, the method comprising the steps of: establishing a connection with a second terminal; periodically transmitting a sidelink channel state information reference signal (SL CSI-RS) to the second terminal; receiving, from the second terminal, preferred beam information on the basis of the SL CSI-RS; transmitting a signal to the second terminal with a beam formed on the basis of the beam information; and receiving acknowledgement/not-acknowledgement (ACK/NACK) information for the signal from the second terminal.

Apparatus and method for sidelink beam operation in wireless communication system

The disclosure relates to a 5G or 6G communication system for supporting a higher data transfer rate than a 4G communication system such as LTE. The disclosure proposes a method and an apparatus for initial access of a reduced capability terminal. The method comprises receiving, from a base station, information on an initial bandwidth part (BWP) for the redcap terminal; and transmitting and receiving, to or from the base station, data on the initial BWP for the redcap terminal, wherein the information on the initial BWP for the redcap terminal is included in a system information block 1, and wherein the information on the initial BWP for the redcap terminal includes information on a frequency location of the initial BWP for the redcap terminal, subcarrier spacing information and cyclic prefix information of the initial BWP for the redcap terminal.

Method and apparatus of initial access for user equipment with reduced complexity 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.

Growing community of inventors

Suwon-si, South Korea

Cheolkyu Shin