公开(公告)号：US20230209514A1

公开(公告)日：2023-06-29

申请号：US18063619

申请日：2022-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou ,  Dalin Zhu

IPC: H04W72/0446

CPC classification number: H04W72/0446

Abstract: Apparatuses and methods for repetitions of uplink (UL) transmissions for multi-transmit receive point (TRP) operation. A method for operating a user equipment (UE) includes receiving information for synchronization signals and physical broadcast channel (SS/PBCH) blocks over a first set of symbols of a slot and parameters for transmission of a physical uplink shared channel (PUSCH). The SS/PBCH blocks are associated with physical cell identities (PCIs) that are different than a PCI of a serving cell of the UE. The method further includes identifying, according to the parameters, a second set of symbols in the slot for transmission of the PUSCH and determining an availability of the slot for the transmission of the PUSCH when the second set of symbols does not include any symbol from the first set of symbols.

公开(公告)号：US20230180331A1

公开(公告)日：2023-06-08

申请号：US18060522

申请日：2022-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi ,  Emad N. Farag

IPC: H04W76/19 ,  H04W72/12 ,  H04W24/04 ,  H04W72/04

CPC classification number: H04W76/19 ,  H04W24/04 ,  H04W72/0413 ,  H04W72/1289

Abstract: Methods and apparatuses for beam failure detection, request, and recovery under a unified transmission configuration indication (TCI) framework in a wireless communication system. A method for operating a user equipment (UE) includes receiving information associated with a transmission configuration indication (TCI) state for the UE and identifying, based on the information, an uplink (UL) TCI state or a joint downlink (DL) and UL TCI state for a physical uplink control channel (PUCCH). The method further includes determining, based on the UL TCI state or the joint DL and UL TCI state for the PUCCH, a first beam failure detection (BFD) reference signal (RS) to monitor and monitoring for an UL beam failure based on the first BFD RS.

公开(公告)号：US11641224B2

公开(公告)日：2023-05-02

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 ,  H04B17/364 ,  H04L5/00 ,  H04B7/08

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：US20230114010A1

公开(公告)日：2023-04-13

申请号：US17932625

申请日：2022-09-15

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/04 ,  H04B7/06 ,  H04B17/318 ,  H04W56/00 ,  H04W24/08

Abstract: Apparatuses and methods for beam recovery operations in a wireless communication system. A method for operating a user equipment (UE) includes transmitting a reference signal (RS) resource index (q_new), receiving an indication of a unified transmission configuration indication (TCI) state, and receiving a beam failure recovery response (BFRR). The method further includes determining, based on the q_new and the BFRR, antenna port quasi co-location (QCL) parameters for: monitoring a physical downlink control channel (PDCCH), receiving a physical downlink shared channel (PDSCH), and receiving a channel state information RS (CSI-RS) and determining, based on the q_new and the BFRR, a spatial domain filter for transmitting: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a sounding RS (SRS). The q_new corresponds to a synchronization signal block (SSB) resource index or a CSI-RS resource configuration index.

公开(公告)号：US11626913B2

公开(公告)日：2023-04-11

申请号：US17643153

申请日：2021-12-07

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04B7/06 ,  H04W72/04

Abstract: Methods and apparatuses for beam management after channel setup. A method of operating a user equipment (UE) includes receiving at least one of synchronization signal/physical broadcast channel block (SSB) or channel state information reference signal (CSI-RS), measuring the at least one of the SSB or the CSI-RS, and determining downlink (DL) quasi-co-location (QCL) properties for DL communication based on the at least one of the SSB or the CSI-RS. The method further includes determining an uplink (UL) spatial domain filter for UL communication, receiving DL channels using the determined DL QCL properties until only one of only one joint TCI state or only one DL TCI state is configured, activated, or indicated to the UE, and transmitting UL channels using the determined UL spatial domain filter until only one of only one joint TCI state or only one UL TCI state is configured, activated, or indicated to the UE.

公开(公告)号：US20220360314A1

公开(公告)日：2022-11-10

申请号：US17661714

申请日：2022-05-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi

IPC: H04B7/06 ,  H04W76/19 ,  H04W72/02 ,  H04L5/00

Abstract: Methods and apparatus for beam failure recovery in a wireless communication system. A method of operating a user equipment (UE) is includes receiving, in a radio resource control (RRC) signaling, a pool of one or more reference signal (RS) resource indexes for a beam failure detection RS (BFD-RS) configuration; receiving a medium access control control element (MAC CE) command for BFD-RS activation; and receiving a control resource set (CORESET) with one or two transmission configuration information (TCI) states. The method further includes determining, based on the MAC CE command, a first set of one or more RS resource indexes for beam failure detection and determining, based on the one or two TCI states for the CORESET, one or more RS resource indexes in a second set of one or more RS resource indexes for beam failure detection.

公开(公告)号：US20220295498A1

公开(公告)日：2022-09-15

申请号：US17654749

申请日：2022-03-14

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/08 ,  H04W72/04 ,  H04W56/00

Abstract: Methods and apparatuses for aperiodic channel state information (CSI) measurement and reporting in a wireless communication system. A method for operating a user equipment (UE) includes receiving an indication to enable group-based beam reporting and receiving a channel state information (CSI) request for the group-based beam reporting. The method further includes determining, based on the CSI request, information associated with an aperiodic CSI (A-CSI) trigger state for the group-based beam reporting; determining, based on the information associated with the A-CSI trigger state, first and second sets of CSI resources for the group-based beam reporting; and transmitting resource indicators generated based on at least one of the first and second sets of CSI resources. The resource indicators correspond to at least one of: (1) a synchronization signal block resource indicator (SSBRI) and (2) a CSI reference signal resource indicator (CRI).

公开(公告)号：US20220263616A1

公开(公告)日：2022-08-18

申请号：US17650062

申请日：2022-02-04

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04L5/00

Abstract: Apparatuses and methods for indication for inter-cell beam management in a wireless communication system. A method of operating a user equipment (UE) includes receiving configuration information for a list of transmission configuration indication (TCI) states, receiving TCI state code points activated by a medium access control-control element (MAC CE), and receiving DL control information (DCI) indicating at least one of the activated TCI state code points. The method further includes determining a TCI state to apply to at least one of downlink (DL) channels and uplink (UL) channels within at least one entity; updating one or more spatial filters for at least one of the DL channels and the UL channels based on the determined TCI state; and receiving and transmitting the DL channels and the UL channels of the at least one entity, respectively, based on the updated one or more spatial filters.

公开(公告)号：US20220239429A1

公开(公告)日：2022-07-28

申请号：US17582929

申请日：2022-01-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi

IPC: H04L5/00

Abstract: Methods and apparatuses for communications in a distributed antenna wireless communication system. A method for operating a user equipment (UE) includes receiving a first configuration for measuring a channel difference between a target cell and a reference cell in a cell group; receiving information for one or more measurement reference signals (RSs) to measure for determining the channel difference; and receiving a second configuration for reporting the channel difference between the target cell and the reference cell in the cell group. The method further includes measuring, based on the information, the measurement RSs; determining, based on the measured measurement RSs, the channel difference between the target cell and the reference cell in the cell group; and transmitting, based on the second configuration, a channel difference report associated with the determined channel difference. The measurement RSs comprise channel state information reference signals (CSI-RSs), synchronization signal blocks (SSBs), or both.

公开(公告)号：US20220210825A1

公开(公告)日：2022-06-30

申请号：US17645946

申请日：2021-12-23

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W74/00 ,  H04W74/08

Abstract: Apparatuses and methods for uplink timing adjustment in a wireless communication system. A method for operating a user equipment (UE) includes receiving a first uplink (UL) timing advance (TA) command for a first link associated with a first physical cell identity (PCI); receiving a second UL TA command for a second link associated with a second PCI; and determining, based on the first and second UL TA commands, first and second UL timing adjustments for the first and second links associated with the first and second PCIs, respectively. The method further includes transmitting a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), or a sounding reference signal (SRS) associated with the first PCI according to the first UL timing adjustment; and transmitting a PUCCH, a PUSCH, or a SRS associated with the second PCI according to the second UL timing adjustment. The second PCI is different from a serving cell PCI.