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：US11695507B2

公开(公告)日：2023-07-04

申请号：US16497425

申请日：2018-03-26

Applicant: Samsung Electronics Co., Ltd

Inventor： Chuang Zhang ,  Qi Xiong ,  Chen Qian ,  Bin Yu ,  Chengjun Sun

IPC: H04L1/00 ,  H04L25/03 ,  H04L27/26 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04L1/0071 ,  H04L25/03866 ,  H04L27/2626 ,  H04L27/2627 ,  H04W72/23 ,  H04L5/0046

Abstract: A multiple access method, a multiple access transmitter, and a multiple access receiver includes performing, by a transmitter, channel coding on a bit sequence to determine a coded sequence. The method also includes interleaving and/or scrambling the coded sequence, and performing multidimensional constellation modulation on the interleaved and/or scrambled sequence; performing grid mapping on the modulated symbol sequence to determine a mapped sequence, and transmitting the mapped sequence. The method also includes receiving, by a receiver, mixed signals from multiple transmitters, the mixed signals are obtained by performing, by each of the multiple transmitters, interleaving and/or scrambling, multidimensional constellation modulation and grid mapping on data. The method further includes decoding, by the receiver, mixed information according to interleaver information and/or scrambler information, multidimensional constellation information and grid mapping pattern information corresponding to each transmitter to obtain data corresponding to each transmitter.

公开(公告)号：US11252660B2

公开(公告)日：2022-02-15

申请号：US15929972

申请日：2020-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xutao Zhou ,  Chengjun Sun ,  Gert-Jan Van Lieshout

IPC: H04W72/00 ,  H04W52/02 ,  H04W36/00 ,  H04W24/10 ,  H04W24/08 ,  H04W72/04 ,  H04W48/16 ,  H04W84/04

Abstract: A method and an apparatus for measuring an inter-frequency neighboring cell is provided. The method comprises obtaining a time requirement of cell identification of a specific carrier, obtaining a time requirement of cell measurement of the specific carrier, identifying a new cell on the corresponding specific carrier in the time requirement of the cell identification of the specific carrier, measuring Reference Signal Receiving Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ) of an identified cell in the time requirement of the cell measurement of the specific carrier, and reporting a measurement result of the identified cell according to a configured measurement event, wherein the specific carrier is different from other carriers, and the time requirement of the cell identification of the specific carrier is different from time requirements of the cell identification of other carriers.

公开(公告)号：US11245574B2

公开(公告)日：2022-02-08

申请号：US16742364

申请日：2020-01-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Yingyang Li ,  Chengjun Sun

IPC: H04L12/24 ,  H04L5/14 ,  H04L5/00 ,  H04W56/00 ,  H04W16/32 ,  H04W72/04 ,  H04W88/02

Abstract: Embodiments of the present disclosure provide a method and an apparatus for configuring uplink and downlink carriers. In the embodiments of the present disclosure, the UE determines according to received uplink and downlink carrier configuration signaling, the pairing between the uplink and downlink carriers, and/or a timing reference downlink carrier for the uplink, and/or a pathloss reference cell for the uplink. Thus, the uplink and downlink carriers may be configured more flexibly. Further, through the configuration of the reference downlink carrier for the uplink timing and the uplink power control, the carrier aggregation performance and that on the unlicensed band may be supported more effectively, so as to improve the performance of the LTE system.

公开(公告)号：US11101921B2

公开(公告)日：2021-08-24

申请号：US15232291

申请日：2016-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun

IPC: H04L1/00 ,  H04L5/00 ,  H04B1/50 ,  H04L1/16 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08

Abstract: A method and apparatus are provided for reporting channel state information (CSI) by a user equipment (UE). The method includes identifying two interference measurement resources, if the UE is configured with two CSI subframe sets by a base station (BS); obtaining CSI based on an interference measurement resource within a subframe set; and reporting the obtained CSI associated with the subframe set to the BS.

公开(公告)号：US10862641B2

公开(公告)日：2020-12-08

申请号：US16210745

申请日：2018-12-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun

IPC: H04L5/00 ,  H04B7/0456 ,  H04L1/00 ,  H04W52/42 ,  H04W72/04 ,  H04W72/12

Abstract: The present disclosure provides a data transmission method. A UE receives CSI-RS configuration signaling from a base station, measuring and reporting CSI according to the CSI-RS configuration signaling. The UE receives scheduling signaling from the base station, and receives downlink data according to the scheduling signaling. The method provides a way of measuring and feeding back CSI with reduced CSI-RS overhead. The method can configure DMRS ports in a flexible manner. Therefore, performances of MU-MIMO can be optimized.

公开(公告)号：US10728864B2

公开(公告)日：2020-07-28

申请号：US16280287

申请日：2019-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shichang Zhang ,  Bin Yu ,  Chengjun Sun

IPC: H04W56/00 ,  H04W72/02

Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.

公开(公告)号：US10609717B2

公开(公告)日：2020-03-31

申请号：US16561498

申请日：2019-09-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun

IPC: H04W72/08 ,  H04W72/12 ,  H04B17/309 ,  H04B17/24 ,  H04L5/00 ,  H04L1/00 ,  H04L27/36 ,  H04W72/04

Abstract: Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.

公开(公告)号：US10454632B2

公开(公告)日：2019-10-22

申请号：US15539922

申请日：2015-12-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Yi Wang ,  Chengjun Sun

IPC: G08C25/02 ,  H04L1/18

Abstract: The present application discloses a method and apparatus for a hybrid automatic repeat request (HARQ) transmission. An embodiment of the HARQ transmission method for the communication apparatus comprises: receiving configuration information related to a cross-carrier HARQ transmission from a base station, an initial transmission and a re-transmission of the HARQ transmission processable on different physical component carriers; receiving downlink control information from the base station, the downlink control information including control information for the cross-carrier HARQ transmission; and performing the cross-carrier HARQ transmission according to the configuration information and the downlink control information. By using the embodiments of the present invention, the HARQ transmission for the same data on a plurality of physical component carriers can be realized, and thus the effectiveness of the HARQ transmission is improved.

公开(公告)号：US10448339B2

公开(公告)日：2019-10-15

申请号：US15966418

申请日：2018-04-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shichang Zhang ,  Yingyang Li ,  Chengjun Sun

IPC: H04W52/04 ,  H04L5/00 ,  H04W52/32 ,  H04L5/14 ,  H04W52/14 ,  H04W52/22 ,  H04W72/12

Abstract: Disclosed is a method for controlling an uplink (UL) power in a multi-subframe scheduling system including a user equipment (UE) receiving a multi-subframe UL scheduling instruction or physical downlink control channel (PDCCH) data of a downlink control information (DCI) format 3/3 A of the UE, in a DL subframe where the multi-subframe UL scheduling instruction is transmitted, and the UE determining a transmitting power of the PUSCH of each UL subframe scheduled by the multi-subframe UL scheduling instruction, based on a power controlling command value, and transmitting corresponding PUSCH data based on the calculated transmitting power.