公开(公告)号：US20220225338A1

公开(公告)日：2022-07-14

申请号：US17575495

申请日：2022-01-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi ,  Emad N. Farag ,  Md. Saifur Rahman

IPC: H04W72/10 ,  H04W72/04 ,  H04W72/02

Abstract: Apparatuses and methods for configuration and determination of default beams in a wireless communication system. A method for operating a user equipment (UE) includes receiving a first physical downlink control channel (PDCCH) including a first downlink control information (DCI) format indicating one or more first unified transmission configuration indication (TCI) states, receiving a second PDCCH including a second DCI format indicating one or more second unified TCI states, and receiving information on a beam application time. The method further includes determining a quasi-co-location (QCL) assumption for reception of a physical layer shared channel (PDSCH) based on one of the one or more first and second unified TCI states and the beam application time and receiving the PDSCH according to the QCL assumption. Receptions of the first and second PDCCHs are in control resource sets (CORESETs) configured with same or different values of a coresetPoollndex.

公开(公告)号：US20220216904A1

公开(公告)日：2022-07-07

申请号：US17646104

申请日：2021-12-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi ,  Emad N. Farag ,  Md. Saifur Rahman

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/08

Abstract: Apparatuses and methods for beam reporting operations. A method for operating a user equipment (UE) includes receiving an indication for reporting, in a channel state information (CSI) reporting instance, one or more resource indicators and corresponding beam metrics associated with a first physical cell identity (PCI) or a second PCI and receiving a set of reference signals (RSs) for determining the one or more resource indicators and corresponding beam metrics. The method further includes measure one or more RSs in the set of RSs; determining, based on the measured one or more RSs in the set of RSs, the one or more resource indicators and corresponding beam metrics; and transmitting, in the CSI reporting instance, the one or more resource indicators and corresponding beam metrics associated with the first or second PCIs. The second PCI is different from a serving cell PCI.

公开(公告)号：US20220200670A1

公开(公告)日：2022-06-23

申请号：US17557671

申请日：2021-12-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Md. Saifur Rahman ,  Eko Onggosanusi ,  Dalin Zhu

IPC: H04B7/0456 ,  H04B7/08 ,  H04L5/00 ,  H04B17/364

Abstract: A method for operating a user equipment (UE) comprises receiving information about a downlink (DL) transmission transmitted from NRRH>1 RRHs, wherein: NRRH=number of remote radio heads (RRHs), RRH r comprises a group of antenna ports, and r=1, . . . , NRRH; receiving the DL transmission; and decoding the information about the DL transmission; wherein the DL transmission is based on a scheme that is a combination of a precoding scheme and a diversity scheme, wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.

公开(公告)号：US11337226B2

公开(公告)日：2022-05-17

申请号：US17000233

申请日：2020-08-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Boon Loong Ng ,  Jianhua Mo

IPC: H04W24/08 ,  H04W72/08 ,  H04B7/08 ,  H04W72/04 ,  H04L43/16 ,  H04B17/318

Abstract: A user equipment, a method, and computer-readable media. The UE, which includes a transceiver with a plurality of antenna panels, is configured to determine a link quality of a serving antenna panel. If the link quality of the serving panel is below a quality threshold, resources are allocated from the serving antenna panel to another antenna panel during a sweeping period to identify one or more beams of a target antenna panel for resuming communications. Measurements for a set of beams of the other antenna panel are obtained, during the sweeping period, with the allocated resources. The other antenna panel can be determined to be the target antenna panel based on the obtained measurements. The UE can switch from the serving antenna panel to the target antenna panel, select the one or more beams based on the obtained measurements, and resume the communications on the selected one or more beams.

公开(公告)号：US20220085943A1

公开(公告)日：2022-03-17

申请号：US17447181

申请日：2021-09-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Md. Saifur Rahman ,  Emad N. Farag ,  Eko Onggosanusi

IPC: H04L5/00

Abstract: Methods and apparatuses for timing adjustment in a system comprising multiple transmission and reception points (TRPs). A method for operating a user equipment (UE) includes receiving first information for one or more first measurement reference signals (RSs) from a first cell to measure for determining a downlink (DL) timing difference, receiving second information for one or more second measurement RSs from a second cell to measure for determining the DL timing difference, and receiving a configuration for reporting the DL timing difference between the first and second cells. The method further includes measuring, based on the first and second information, the first and second measurement RSs, respectively; determining, based on the first and second measured measurement RSs, a timing difference report for the first and second cells; and transmitting, based on the configuration, the timing difference report to one or more of the first and second cells.

公开(公告)号：US20180019905A1

公开(公告)日：2018-01-18

申请号：US15545672

申请日：2016-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Bin Yu ,  Pengfei Sun

IPC: H04L27/26 ,  H04L1/00 ,  H04L27/36 ,  H04J11/00

CPC classification number: H04L27/2698 ,  H04B7/0452 ,  H04J11/0023 ,  H04L1/0053 ,  H04L1/0054 ,  H04L27/2615 ,  H04L27/264 ,  H04L27/2647 ,  H04L27/366

Abstract: The present disclosure provides a method for interference cancellation which includes: calculating a mean value and a variance value of a received signal to obtain statistics information of the received signal; calculating an estimating log-likelihood ratio using the statistics information of the received signal; calculating a decoding log-likelihood ratios of the received signal using the estimating log-likelihood ratio of the received signal, and performing calculations to update the statistics information of the received signal; repeating the above steps for a pre-determined number of times, performing hard decisions on the decoding log-likelihood ratios of the received signal, and outputting data bits obtained from the hard decision. The present disclosure also provides an apparatus, an auxiliary method, a base station and a terminal device for interference cancellation. The mechanism of the present disclosure can reduce the impact of inherent interference in the FBMC/OQAM system on system performances, and increase spectral efficiency and design flexibility of the FBMC/OQAM system.

公开(公告)号：US20250159628A1

公开(公告)日：2025-05-15

申请号：US18924954

申请日：2024-10-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Emad Nader Farag ,  Hongbo Si ,  Dalin Zhu ,  Eko Onggosanusi

IPC: H04W56/00 ,  H04L5/00 ,  H04W16/28

Abstract: Methods and apparatuses for transmission and reception of sub-band synchronization signal/physical broadcast channel (SS/PBCH) blocks (SSBs) t. A method of operating a user equipment (UE) includes searching SSB indices in SSB occasions. The SSB occasions are organized in SSB groups. An SSB group of the SSB groups includes N SSB indices in N SSB occasions. The SSB group spans M frequency occasions and K time occasions, where N≤M·K, and M>1. The method further includes receiving, in frequency occasion m1i and in time occasion k1i, SSB index i in a first SSB group with index s1 and receiving, in frequency occasion m2i and in time occasion k2i, SSB index i in a second SSB group with index s2. The frequency occasions are different.

公开(公告)号：US20250113362A1

公开(公告)日：2025-04-03

申请号：US18890185

申请日：2024-09-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Emad Nader Farag ,  Dalin Zhu ,  Eko Onggosanusi ,  Md. Saifur Rahman ,  Gilwon Lee

IPC: H04W72/21 ,  H04W72/23

Abstract: Methods and apparatuses for user equipment (UE)-initiated reporting. A method of operating a user equipment (UE) includes transmitting a first uplink (UL) signal, receiving, in response to the first UL signal, a first downlink (DL) signal indicating resources for a second DL signal, and a second UL signal, and receiving the second DL signal based on the indicated resources for the second DL signal. The method further includes measuring the second DL signal, determining a report based on the measurement, and transmitting the report based on the indicated resources for the second UL signal. The second UL signal is a physical UL shared channel (PUSCH) or a physical uplink control channel (PUCCH).

公开(公告)号：US20250088333A1

公开(公告)日：2025-03-13

申请号：US18824788

申请日：2024-09-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Emad Nader Farag ,  Eko Onggosanusi

IPC: H04L5/00 ,  H04W72/232

Abstract: Methods and apparatuses for group common beam indication. A method performed by a user equipment (UE) includes receiving a plurality of first transmission configuration indication (TCI) states in a group common downlink control information (DCI) and receiving first information related to a plurality of channel measurement resources (CMRs) for coherent-joint transmission (CJT). The method further includes determining, based on the plurality of first TCI states, at least one second TCI state; determining an association between the at least one second TCI state and the first information; and receiving, based on the association, the plurality of CMRs. The first information comprises at least a number of the plurality of CMRs and time-frequency domain resource configurations for the plurality of CMRs.

公开(公告)号：US20250056560A1

公开(公告)日：2025-02-13

申请号：US18783210

申请日：2024-07-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Emad Nader Farag ,  Eko Onggosanusi ,  Jianhua Mo ,  Young Han Nam

IPC: H04W72/232 ,  H04L5/00 ,  H04W72/0453

Abstract: Methods and apparatuses for frequency selective beam management. A method performed by a user equipment (UE) includes receiving first information related to a plurality of frequency subbands and receiving, in a first part of a downlink control information (DCI), at least one first transmission configuration indication (TCI) state and second information related to a second part of the DCI. The method further includes determining, based on the first information, a first association between the plurality of frequency subbands and the at least one first TCI state; for a first frequency subband from the plurality of frequency subbands, determining a first TCI state based on the first association; and identifying, based on the determined first TCI state, a spatial domain filter for transmitting or receiving UE-dedicated channels or signals for the first frequency subband.