公开(公告)号：US20190342846A1

公开(公告)日：2019-11-07

申请号：US16518749

申请日：2019-07-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Shichang Zhang ,  Yingyang Li ,  Chengjun Sun ,  Jingxing Fu

IPC: H04W56/00 ,  H04W74/00 ,  H04W74/08

Abstract: The present disclosure provides several methods, user equipment (UEs) and base stations for transmitting uplink signals. After receiving uplink synchronization command information, the UE may transmit an uplink signal on at least one idle unlicensed cell. Besides, the UE may try to transmit the uplink signal on multiple uplink signal resources within an uplink signal transmission window. By using the present disclosure, transmission probability of uplink signals may be improved, and time delay of uplink synchronization may be shortened.

公开(公告)号：US10313067B2

公开(公告)日：2019-06-04

申请号：US15010359

申请日：2016-01-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shichang Zhang ,  Yingyang Li ,  Jingxing Fu ,  Yi Wang ,  Chengjun Sun ,  Lixiang Xu

IPC: H04L1/18

Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.

公开(公告)号：US20170332390A1

公开(公告)日：2017-11-16

申请号：US15595749

申请日：2017-05-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Shichang Zhang ,  Yi Wang

IPC: H04W72/12 ,  H04L5/00 ,  H04W24/08

Abstract: A first device senses scheduling assignment (SA) and received power of a second device, and a total received energy of each subband. The first device determines a reference value of received power of the second device and a reference value of total received energy, based on a sensing result of the second device. The first device selects a resource, based on the reference value of received power and reference value of total received energy, the first device transmits data. By adopting the method of the present disclosure, decoding performance of SA is improved, and accuracy for measuring received power of the SA is also enhanced. Subsequently, on the basis of SA and received power, performances for selecting/re-selecting channel resources are improved.

公开(公告)号：US12238734B2

公开(公告)日：2025-02-25

申请号：US17607851

申请日：2020-04-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jingxing Fu ,  Feifei Sun ,  Yi Wang ,  Bin Yu

IPC: H04W72/12 ,  H04W8/24 ,  H04W72/23

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as long term evolution (LTE). The present disclosure provides a method and apparatus of receiving Downlink Control Information (DCI). The method may include: a User Equipment (UE) determines a number of detections corresponding to a DCI detection ability of the UE and a number of detections corresponding to a DCI format; the UE reduces the number of detections corresponding to the DCI format, wherein the reduced number of detections corresponding to the DCI format is smaller than or equal to the number of detections corresponding to the DCI detection ability; and the UE receives the DCI according to the reduced number of detections corresponding to the DCI format. According to the method and apparatus of the present disclosure, a complexity of a procedure of receiving the DCI can be reduced.

公开(公告)号：US12171023B2

公开(公告)日：2024-12-17

申请号：US17675337

申请日：2022-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Chengjun Sun ,  Yingyang Li

IPC: H04W74/0808 ,  H04L12/413 ,  H04W16/14 ,  H04W52/14 ,  H04W52/24 ,  H04W52/36

Abstract: Provided is a pre-5th-Generation (5g) or 5G communication system for supporting higher data rates Beyond 4th-Generation (4g) communication system such as Long Term Evolution (LTE). The present disclosure provides a method performed by a base station in a wireless communication system. The method includes determining at least one energy detection threshold for sensing based on a signal to be transmitted; identifying a detected power corresponding to a channel of an unlicensed band; determining whether the channel is idle based on the detected power and the at least one energy detection threshold; and transmitting the signal to a user equipment (UE) on the channel based on a determination that the channel is idle. The at least one energy detection threshold corresponds to the signal to be transmitted including a first signal or a second signal, and the second signal includes at least one discovery signal, and the first signal is different from the second signal.

公开(公告)号：US12170994B2

公开(公告)日：2024-12-17

申请号：US18146303

申请日：2022-12-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Feifei Sun ,  Yi Wang ,  Qi Xiong

IPC: H04W72/1263 ,  H04L1/1867 ,  H04W8/24 ,  H04W72/0446 ,  H04W72/54 ,  H04W74/0833

Abstract: The 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 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. A method performed by a user equipment (UE) comprises transmitting, to a base station, a random access preamble and capability information of the UE; receiving, from the base station, a random access response including time domain scheduling information being based on the capability information; and transmitting, to the base station, data based on the time domain scheduling information.

公开(公告)号：US12149365B2

公开(公告)日：2024-11-19

申请号：US18353403

申请日：2023-07-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Jingxing Fu ,  Feifei Sun

IPC: H04L1/18 ,  H04L1/1812 ,  H04L1/1829 ,  H04L5/00 ,  H04W72/21

Abstract: A method for transmitting uplink control information is provided. The method includes receiving a Physical Downlink Shared Channel (PDSCH), determining Physical Uplink Control Channel (PUCCH) resources for feeding back Hybrid Automatic repeat Request Acknowledgement (HARQ-ACK) information of the PDSCH, and transmitting a HARQ-ACK of the PDSCH on the PUCCH resources according to at least one of HARQ-ACK timing information, the time domain duration of scheduling unit in a downlink bandwidth part and an uplink bandwidth part, or PUCCH resource indication information. The embodiments of the application further propose a corresponding user equipment and a corresponding computer storage medium.

公开(公告)号：US12144003B2

公开(公告)日：2024-11-12

申请号：US18064167

申请日：2022-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Feifei Sun ,  Yi Wang ,  Jingxing Fu

IPC: H04W72/23

Abstract: The present disclosure provides a user equipment and a method for performing data transmission. The method includes receiving at least one of downlink control information (DCI) or higher layer signaling from a base station; determining a transmission format of the data transmission based on at least one of the DCI or the higher layer signaling; and performing the data transmission based on the determined transmission format. The present disclosure also provides a base station and a method for performing data transmission.

公开(公告)号：US12127169B2

公开(公告)日：2024-10-22

申请号：US17267348

申请日：2019-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Chen Qian ,  Jingxing Fu ,  Feifei Sun

IPC: H04W4/00 ,  H04W72/0446

CPC classification number: H04W72/0446

Abstract: The present disclosure provides an uplink transmission method, and a corresponding user equipment, base station and computer readable medium. A method for an uplink data transmission includes: determining a transmission occasion for an uplink transmission and a Hybrid Automatic Repeat Request, HARQ, process ID corresponding to the transmission occasion; determining an antenna port according to a correspondence between antenna ports and HARQ process IDs and/or a correspondence between antenna ports and transmission occasions; and transmitting, by the antenna port, uplink data corresponding to the HARQ process ID and a pilot signal corresponding to the uplink data. By establishing the correspondence between the antenna ports and the HARQ process IDs or the transmission occasion, the base station determines the antenna port when detecting the uplink transmission, so that the HARQ process ID corresponding to the uplink transmission may be determined.

公开(公告)号：US12034543B2

公开(公告)日：2024-07-09

申请号：US18456887

申请日：2023-08-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Yingyang Li

IPC: H04L1/18 ,  H04L1/1812 ,  H04L1/1829 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/21

CPC classification number: H04L1/1812 ,  H04L1/1861 ,  H04L5/0055 ,  H04W72/0453 ,  H04W72/21

Abstract: 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 provides a method of a base station for supporting an inter-system handover from an evolved packet system (EPS) system to a 5th generation (5G) system. The present application provides a method for transmitting HARQ-ACK information, including steps of: detecting, by a UE, a PDCCH and receiving a PDSCH scheduled by the PDCCH; for one slot of one carrier, determining, according to a configured slot pattern and a configured PDCCH monitoring occasion, the HARQ-ACK occasion and the number of HARQ-ACK bits occupied by the one slot; and, generating, by the UE, an HARQ-ACK codebook according to the HARQ-ACK occasion and the number of HARQ-ACK bits occupied by the one slot, and transmitting HARQ-ACK information. By the method of the present invention, the number of HARQ-ACK bits to be fed back within each slot is reduced, and the feedback overhead is reduced; moreover, the number of bits of the generated HARQ-ACK codebook changes semi-statically, so that the confusion between a base station and a UE is avoided.