公开(公告)号：US09923612B2

公开(公告)日：2018-03-20

申请号：US14762159

申请日：2014-01-15

申请人： Samsung Electronics Co., Ltd. ,  Korea National University of Transportation Industry Academic Cooperation Foundation

发明人： Hyoungju Ji ,  Cheol Mun ,  Younsun Kim ,  Juho Lee ,  Hyojin Lee ,  Joonyoung Cho

IPC分类号： H04B7/0413 ,  H04B7/26 ,  H04B7/06 ,  H04L5/00 ,  H04W72/12

CPC分类号： H04B7/0413 ,  H04B7/0697 ,  H04B7/2621 ,  H04L5/0023 ,  H04L5/0048 ,  H04W72/1273

摘要： The present invention proposes a hybrid spatial multiplexing (SM) and a space division multiple access (SDMA) technique in a frequency division duplex (FDD) massive multiple-input multiple output (MIMO) system using a two-dimensional planar array antenna, which effectively transmits a channel state information reference signal (CSI-RS) for estimating a downlink two-dimensional space channel using only a limited amount of downlink radio resources, and optimally selects and performs the SM and SDMA techniques in a two-dimensional space channel. To this end, the present invention proposes a technique which defines space resource blocks (SRB) by grouping space elements (SE) having a high spatial correlation between downlink channels in the horizontal dimension and corresponding SEs thereof in the vertical dimension, and transmits CSI-RSs for estimating channels in vertical dimension SEs corresponding to one selected horizontal SE in each SRB every transmit time interval (TTI). The present invention proposes a technique wherein user equipment (UE) estimates the spatial correlation between channels of different horizontal dimension SEs belonging to the same SRB received in different TTIs and the spatial correlation between channels of horizontal dimension SEs belonging to different SRBs received in the same TTI, and feeds information for changing the size of SRB of the corresponding UE to an optimal size back to eNodeB. The present invention proposes a technique wherein the UE estimates downlink channels through CSI-RSs transmitted from each SRB, and each UE feeds an index of a preferred SRB, a rank of the corresponding SRB in the vertical dimension, and channel quality information (CQI) back to eNodeB. When each UE determines the rank, it is possible to transmit the ranks to the fullest extent in the vertical dimension and only a single rank from each SRB in the horizontal dimension.

公开(公告)号：US12120713B2

公开(公告)日：2024-10-15

申请号：US17271920

申请日：2019-09-04

申请人： Samsung Electronics Co., Ltd.

发明人： Jeongho Yeo ,  Younsun Kim ,  Hyunseok Ryu ,  Sungjin Park ,  Jonghyun Bang ,  Cheolkyu Shin ,  Jinyoung Oh

IPC分类号： H04W72/53 ,  H04L1/00 ,  H04L1/1812 ,  H04W72/0453 ,  H04W72/23

CPC分类号： H04W72/53 ,  H04L1/0004 ,  H04L1/1819 ,  H04W72/0453 ,  H04W72/23

摘要： The disclosure provides a method, performed by a base station, of transmitting or receiving data, the method including: determining whether to respectively allocate a plurality of transport blocks to different resource regions, based on channel information; determining, based on a result of the determining, a resource region to which the plurality of transport blocks are allocated and a modulation and coding scheme of the plurality of transport blocks; and transmitting, to a terminal, first downlink control information including an indicator of a transmission mode which indicates whether the plurality of transport blocks are allocated to different resource regions and resource allocation information of a resource region to which the plurality of transport blocks are allocated.

公开(公告)号：US11949607B2

公开(公告)日：2024-04-02

申请号：US17080113

申请日：2020-10-26

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Hoondong Noh ,  Yongjun Kwak ,  Donghan Kim ,  Jinyoung Oh ,  Seunghoon Choi ,  Jeongho Yeo ,  Youngbum Kim ,  Youngwoo Kwak ,  Younsun Kim

IPC分类号： H04L12/28 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26 ,  H04W72/12 ,  H04W72/23 ,  H04W72/30 ,  H04W72/51 ,  H04W88/06 ,  H04B7/00 ,  H04W72/1268 ,  H04W72/1273

CPC分类号： H04L5/0032 ,  H04L5/0053 ,  H04L5/0062 ,  H04L27/0006 ,  H04L27/26 ,  H04W72/1215 ,  H04W72/23 ,  H04W72/30 ,  H04W72/51 ,  H04W88/06 ,  H04B7/00 ,  H04L5/0023 ,  H04L27/2602 ,  H04L27/2603 ,  H04W72/1268 ,  H04W72/1273

摘要： 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 disclosure provides a method and an apparatus for coexistence of device-to-device communications and cellular communications in a mobile communications system.

公开(公告)号：US11902214B2

公开(公告)日：2024-02-13

申请号：US17687151

申请日：2022-03-04

申请人： Samsung Electronics Co., Ltd.

发明人： Sungjin Park ,  Seho Myung ,  Younsun Kim ,  Hyunseok Ryu

IPC分类号： H04L5/00

CPC分类号： H04L5/0064 ,  H04L5/0016 ,  H04L5/0053

摘要： A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes transmitting, to a base station, capability information of the UE, and receiving configuration information associated with a transport block size (TBS). The TBS is determined based on a value of NRE·R·Qm·v. The NRE corresponds to a number of allocated resource elements, the R corresponds to a code rate, and the Qm corresponds to a modulation order, and the v corresponds to a number of allocated layers. A maximum value of the TBS is considered for transport block over multiple slots (TBoMS), and the maximum value of the TBS is determined by limiting at least one of a value of the NRE, the R, the Qm, or the v.

公开(公告)号：US11838091B2

公开(公告)日：2023-12-05

申请号：US17832130

申请日：2022-06-03

申请人： Samsung Electronics Co., Ltd.

发明人： Youngbum Kim ,  Younsun Kim ,  Hyunseok Ryu ,  Taehan Bae ,  Youngrok Jang

IPC分类号： H04B7/06 ,  H04W74/08 ,  H04W76/19 ,  H04L5/00 ,  H04W76/15 ,  H04W74/00 ,  H04W16/28 ,  H04W72/044 ,  H04W72/1273

CPC分类号： H04B7/0695 ,  H04W72/044 ,  H04W72/1273 ,  H04W74/0841 ,  H04W74/0866 ,  H04W76/19

摘要： A fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate is provided. A method performed by a terminal configured with a carrier aggregation (CA) for a first cell and a second cell is provided. The method includes determining a beam failure of the first cell, in response to the determining of the beam failure of the first cell, transmitting a first message of a random access for a beam failure recovery, receiving a second message of the random access on a physical downlink shared channel (PDSCH) of the first cell based on the transmission of the first message, transmitting a third message of the random access based on the second message and receiving a fourth message of the random access on the PDSCH of the first cell based on the transmission of the third message, wherein control information is received on a PDCCH.

公开(公告)号：US11770285B2

公开(公告)日：2023-09-26

申请号：US17775734

申请日：2020-11-02

申请人： Samsung Electronics Co., Ltd.

发明人： Hyoungju Ji ,  Juho Lee ,  Younsun Kim ,  Hoondong Noh

IPC分类号： H04L27/26 ,  H04L27/00 ,  H04L1/00 ,  H04L27/20 ,  H04L27/34

CPC分类号： H04L27/2636 ,  H04L1/0023 ,  H04L27/206 ,  H04L27/3411 ,  H04L27/3483

摘要： Provided are a method and apparatus for transmitting data in a wireless communication system. The method, performed by a transmission apparatus, of transmitting data includes performing π/2-binary phase shift keying (BPSK) modulation on M symbols, performing a discrete Fourier transform (DFT) on the M symbols on which the π/2-BPSK modulation has been performed, performing an inverse fast Fourier transform (IFFT) on M/2 symbols among the M symbols on which the DFT has been performed, and transmitting, to a reception apparatus, the M/2 symbols on which the IFFT has been performed, wherein a constellation of the M symbols on which the π/2-BPSK modulation has been performed may have only real components or imaginary components.

公开(公告)号：US11758569B2

公开(公告)日：2023-09-12

申请号：US17114039

申请日：2020-12-07

申请人： Samsung Electronics Co., Ltd.

发明人： Youngbum Kim ,  Cheng Shan ,  Younsun Kim ,  Bruno Clerckx

IPC分类号： H04W72/54 ,  H04L5/00 ,  H04W72/23 ,  H04W72/51

CPC分类号： H04W72/54 ,  H04L5/0053 ,  H04W72/23 ,  H04L5/0094 ,  H04W72/51

摘要： A method and system for resource allocation is provided. A method includes transmitting, to the terminal, information including first information indicating a set of resource blocks associated with a control channel and second information indicating a number of symbols corresponding to the set of resource blocks by a radio resource control (RRC) message; transmitting, to the terminal, control information including information for downlink data on the control channel identified based on the first information and the second information; and transmitting, to the terminal, the downlink data on a data channel based on the control information. The set of resource blocks includes at least one control channel resource, and wherein a search space for the control channel of the terminal is defined based on an aggregation level, and a number of the at least one control channel resource.

公开(公告)号：US11716230B2

公开(公告)日：2023-08-01

申请号：US16947970

申请日：2020-08-26

申请人： Samsung Electronics Co., Ltd.

发明人： Eko Onggosanusi ,  Md Saifur Rahman ,  Younsun Kim

IPC分类号： H04L27/26 ,  H04L1/00 ,  H04L67/62 ,  H04L69/324 ,  H04B17/24 ,  H04L1/06 ,  H04L5/00 ,  H04B17/309 ,  H04B7/06

CPC分类号： H04L27/2601 ,  H04L1/0026 ,  H04L1/0061 ,  H04L67/62 ,  H04L69/324 ,  H04B7/06 ,  H04B17/24 ,  H04B17/309 ,  H04L1/0656 ,  H04L5/0023

摘要： Multistream transmissions are provided for user equipment (UE) including a transceiver configured to receive an L-layer data transmission that includes at least one codeblock (CB). The CB includes a length-N cyclic redundancy code (CRC). The transceiver is also configured to receive a downlink control information (DCI) associated with the data transmission. The UE further includes a processor operably connected to the transceiver. The processor is configured to decode the data transmission, the CRC, and the DCI. The data transmission includes one codeword (CW) when L is less than or equal to a threshold and two CWs when L is greater than the threshold.

公开(公告)号：US11563526B2

公开(公告)日：2023-01-24

申请号：US17055348

申请日：2019-05-15

申请人： Samsung Electronics Co., Ltd.

发明人： Jeongho Yeo ,  Younsun Kim ,  Sungjin Park ,  Jinyoung Oh ,  Taehan Bae ,  Juho Lee

IPC分类号： H04L1/18 ,  H04L1/08

摘要： Disclosed is a 5th generation (5G) or a pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). An apparatus and a method for performing retransmission in a wireless communication system are provided. A method for operating a transmitting device in a wireless communication system, according to various embodiments of the present disclosure, comprises the steps of: transmitting a plurality of data code blocks (CBs) to at least one receiving device in an initial transmission step; receiving, from the at least one receiving device, feedback information including information for indicating the number of data CBs, from among the plurality of data CBs, for which decoding has failed; and transmitting the number of parity CBs, determined on the basis of the number of data CBs for which the decoding has failed, to the at least one receiving device in a retransmission step. Therefore, the resources required for retransmission can be reduced.

公开(公告)号：US11528109B2

公开(公告)日：2022-12-13

申请号：US17045369

申请日：2018-04-12

申请人： Samsung Electronics Co., Ltd.

发明人： Hyojin Lee ,  Byungju Lee ,  Juho Lee ,  Younsun Kim ,  Junghyun Kim ,  Sangyeob Jung

IPC分类号： H04L5/00 ,  H04L27/26 ,  H04W72/04

摘要： 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 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 5G communication technology and IoT-related technology. Disclosed are a method and an apparatus for transmitting a signal by using a non-orthogonal frequency division multiplexing (NOFDM) scheme and, particularly, the present invention presents a method and an apparatus for transmitting a control signal and a reference signal by using an OFDM scheme and for transmitting data by using the NOFDM scheme.