公开(公告)号：US20240372679A1

公开(公告)日：2024-11-07

申请号：US18646527

申请日：2024-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Emad Nader Farag ,  Eko Onggosanusi

IPC: H04L5/00 ,  H04W72/231

Abstract: Methods and apparatuses for transmission configuration indication (TCI) state indications and updates. A method performed by a user equipment includes applying a TCI state for UE dedicated control and data channels and receiving, via a medium access control (MAC) control element (CE), a plurality of TCI codepoints. The method further includes identifying a reference TCI codepoint from the plurality of TCI codepoints; determining, from the reference TCI codepoint, one or more TCI states; and determining whether to apply the one or more TCI states or the reference TCI state for the UE dedicated control and data channels.

公开(公告)号：US20240322984A1

公开(公告)日：2024-09-26

申请号：US18611588

申请日：2024-03-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shiyang Leng ,  Anil Agiwal ,  Dalin Zhu

IPC: H04L5/00

CPC classification number: H04L5/0091 ,  H04L5/0035 ,  H04L5/0053

Abstract: Methods and apparatuses for a MAC CE for multi-TRP operation in a wireless communication system. A method of a UE comprises: receiving, from a BS belonging to a serving cell, a first MAC PDU including a first MAC subheader with a first eLCID and a first MAC CE; identifying, based on the first eLCID, an enhanced unified TCI states activation/deactivation MAC CE for joint TCI states or separate TCI states including a bitmap of TCI state ID presence indications and TCI state IDs, wherein a bit in the bitmap of TCI state ID presence indications indicates, for the TCI state IDs associated with a codepoint of a DCI TCI field, whether a TCI state for a TRP is present in a corresponding MAC CE, and a maximum number of the TCI state IDs that are activated is 32; and indicating, to lower layers, information associated with the corresponding MAC CE.

公开(公告)号：US20240284428A1

公开(公告)日：2024-08-22

申请号：US18419267

申请日：2024-01-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Emad Nader Farag ,  Eko Onggosanusi ,  Dalin Zhu

IPC: H04W72/044 ,  H04L5/00 ,  H04W72/40

CPC classification number: H04W72/046 ,  H04L5/005 ,  H04W72/40

Abstract: Methods and apparatuses for sidelink (SL) beam indication. A method of operating a user equipment (UE) includes transmitting, to a second UE, a first set of reference signals or receiving, from the second UE, a second set of reference signal. The method further includes identifying a beam indication for transmission to or reception from the second UE; determining, based on the beam indication, a spatial transmission filter or a spatial reception filter; and determining a time T to apply the beam indication. The beam indication is associated with a reference signal from the first set of reference signals or the second set of reference signals. The method further includes transmitting, to the second UE, a first SL channel using the spatial transmission filter starting from the time T or receiving, from the second UE, a second SL channel using the spatial reception filter starting from the time T.

公开(公告)号：US20240235638A1

公开(公告)日：2024-07-11

申请号：US18402539

申请日：2024-01-02

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04B7/06 ,  H04L1/1607 ,  H04W72/21

CPC classification number: H04B7/0626 ,  H04L1/1614 ,  H04W72/21

Abstract: Apparatuses and methods for UE-initiated reporting. A method performed by a user equipment (UE) includes receiving information about (i) L events and (ii) K event types, where L≥1 and K≥1. At least one of the L events is associated with at least one of the K event types. The method further includes determining whether to transmit a report based on at least one of L′ events from the L events and transmitting, based on the determination, the report that includes an indicator indicating the L′ events.

公开(公告)号：US11985085B2

公开(公告)日：2024-05-14

申请号：US17582929

申请日：2022-01-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0005 ,  H04L5/0032 ,  H04L5/0057

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：US11984961B2

公开(公告)日：2024-05-14

申请号：US16998880

申请日：2020-08-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Boon Loong Ng ,  Jianhua Mo ,  Anum Ali ,  Daehee Park

IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/0456 ,  H04B7/08 ,  H04W16/28

CPC classification number: H04B7/0695 ,  H04B7/0408 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/088 ,  H04W16/28

Abstract: Methods and apparatuses for selecting beams. A method includes determining, based on a channel condition, whether to use an adaptive selection method or a cycling selection method to select a subset of a plurality of beams for a beam measurement; based on the channel condition being a first channel condition, using the adaptive selection method to select the subset of beams; and based on the channel condition being a second channel condition, using the cycling selection method to select the subset of beams. The method further includes performing the beam measurement on the selected subset of beams, generating beam measurement information based on the beam measurement on the selected subset of beams, and determining one or more of the plurality of beams to use for a wireless communication based on the beam measurement information.

公开(公告)号：US20240155399A1

公开(公告)日：2024-05-09

申请号：US18494663

申请日：2023-10-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Emad Nader Farag ,  Eko Onggosanusi ,  Dalin Zhu

IPC: H04W24/10 ,  H04L5/00 ,  H04W24/08

CPC classification number: H04W24/10 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0094 ,  H04W24/08

Abstract: A UE includes a transceiver configured to receive first information related to a group of CSI-RS resources, receive second information related to a group TCI states, receive third information indicating an association between the group of TCI states and the group of CSI-RS resources, receive fourth information indicating resources for transmission of a beam measurement report, receive a MAC CE including a cell switch command, and transmit a HARQ-ACK. The UE further includes a processor configured to determine one or more CSI-RS resources from the group of CSI-RS resources based on the TCI state. The transceiver is further configured to receive the one or more CSI-RS resources. The processor is further configured to determine, based on a measurement of the one or more CSI-RS resources, a beam measurement report. The transceiver is further configured to transmit the beam measurement report using the resources for transmission of a beam measurement report.

公开(公告)号：US20240147490A1

公开(公告)日：2024-05-02

申请号：US18486130

申请日：2023-10-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dalin Zhu ,  Eko Onggosanusi ,  Emad Nader Farag

IPC: H04W72/23 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04W72/23 ,  H04B7/0686 ,  H04B7/0802

Abstract: Methods and apparatuses for beam indication and association for control and data channels. A method by a user equipment (UE) includes receiving a first radio resource control (RRC) configuration related to one or more transmission configuration indication (TCI) states for reception of a physical downlink control channel (PDCCH); receiving a second RRC configuration related to one or more TCI states for reception of a physical downlink shared channel (PDSCH); receiving, in downlink control information (DCI), an indicator related to the one or more TCI states for reception of the PDSCH; and receiving a timing threshold for reception of the PDSCH. The method further includes identifying, based on the first RRC configuration, one or more TCI states to use for reception of the PDCCH and identifying, based on (i) the timing threshold and (ii) the second RRC configuration or the indicator in the DCI, one or more TCI states to use for reception of the PDSCH.

公开(公告)号：US11937107B2

公开(公告)日：2024-03-19

申请号：US17447807

申请日：2021-09-15

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W24/08 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W24/08 ,  H04L5/0048 ,  H04W24/10

Abstract: Methods and apparatuses for beam measurement and reporting. A method of operating a user equipment includes receiving information indicating associations between a set of transmission configuration (TCI) states and reference signals (RSs) for beam measurement, respectively, receiving a TCI state from the set of TCI states for beam indication, and determining, in response to reception of the TCI state, a RS for beam measurement based on the TCI state and the information. The method further includes transmitting or receiving the RS for beam measurement, and based on the RS being a downlink (DL) RS, measuring the DL RS and determining a measurement report; and transmitting the measurement report.

公开(公告)号：US20240064772A1

公开(公告)日：2024-02-22

申请号：US18447237

申请日：2023-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ebrahim MolavianJazi ,  Emad Nader Farag ,  Dalin Zhu ,  Aristides Papasakellariou ,  Eko Onggosanusi

IPC: H04W72/232 ,  H04W72/1273 ,  H04L5/00

CPC classification number: H04W72/232 ,  H04W72/1273 ,  H04L5/0092

Abstract: Methods and apparatuses for multi-beam operation for multi-cell scheduling. A method includes receiving first information for a set of cells, second information for a set of transmission configuration indication (TCI) states associated with each cell in the set of cells, respectively, and a first physical downlink control channel (PDCCH) that provides a first DCI format. The first DCI format schedules receptions of first physical downlink shared channels (PDSCHs) on respective first cells from the set of cells. The first DCI format includes a first TCI field indicating a combination of TCI states that includes a number of TCI states that is equal to a number of cells in the set of cells. The method further includes determining first TCI states from the combination of TCI states and receiving the first PDSCHs, or second PDSCHs after the first PDSCHs, on the first cells based on the first TCI states, respectively.