公开(公告)号：US20180279239A1

公开(公告)日：2018-09-27

申请号：US15927800

申请日：2018-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbo Si ,  Qiongjie Lin ,  Le Liu ,  Aris Papasakellariou

IPC: H04W56/00 ,  H04W68/02 ,  H04W76/28 ,  H04W72/04

CPC classification number: H04W56/001 ,  H04W68/02 ,  H04W72/042 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

Abstract: A method for a user equipment (UE) in a wireless communication system is provided. The method comprises receiving, from a base station (BS), re-synchronization signals (RSSs) over a downlink channel; identifying time-domain and frequency-domain resources used for the RSSs; and identifying a set of sequences used for constructing the RSSs from the time-domain and frequency-domain resources used for the RSSs.

公开(公告)号：US12273877B2

公开(公告)日：2025-04-08

申请号：US17652262

申请日：2022-02-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Hongbo Si

IPC: H04W72/12 ,  H04W72/1273 ,  H04W72/23

Abstract: Methods and apparatuses for a repeated pattern over multiple slots in a wireless communication system. A method of operating a user equipment includes receiving a configuration for search space sets, determining a combination (X, Y), and determining a bitmap for a search space set from the search space sets based on the configuration. Each bit in the bitmap is associated with a slot within a group of X consecutive slots. A physical downlink control channel (PDCCH) reception occasion in a slot is present if the associated bit for the slot in the bitmap has a value of “1” and is absent if the associated bit for the slot in the bitmap has a value of “0”. Bits with a value of “1” are consecutive in the bitmap. The method further includes receiving PDCCHs in PDCCH reception occasions that are indicated as present according to the bitmap.

公开(公告)号：US12245250B2

公开(公告)日：2025-03-04

申请号：US18315339

申请日：2023-05-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aris Papasakellariou ,  Qiongjie Lin

IPC: H04W72/23

Abstract: Methods and apparatuses for multi-cell scheduling with reduced control overhead. A method for receiving physical downlink control channels (PDCCHs) includes receiving information for a first group of N1 cells and for a second group of N2 cells, determining a total number of PDCCH receptions in a slot on a scheduling cell based on N1 and on a ratio of N2 over M, and receiving a number of PDCCHs in the slot on the scheduling cell that is not larger than the total number. A PDCCH provides a downlink control information (DCI) format. The DCI format schedules one of: a physical downlink shared channel (PDSCH) reception, or a physical uplink shared channel (PUSCH) transmission, on one cell from the first group of N1 cells, or PDSCH receptions, or PUSCH transmissions, on a number of cells up to a maximum of M cells from the second group of N2 cells.

公开(公告)号：US12089080B2

公开(公告)日：2024-09-10

申请号：US17653268

申请日：2022-03-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Aristides Papasakellariou ,  Hongbo Si

IPC: H04W24/08 ,  H04L1/1607 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W24/08 ,  H04L1/1614 ,  H04L1/1812 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/0446 ,  H04W72/23

Abstract: Methods and apparatus for physical downlink control channel (PDCCH) reliability enhancements. A method includes receiving first information for a number of N>1 search space sets. For each of the N search space sets, the first information includes: an index, wherein search space sets are indexed in an ascending order of respective indexes, a periodicity, wherein the periodicity is same for all of the N search space sets, and an indication that the N search space sets are linked for receptions of PDCCHs, wherein the PDCCHs provide identical information. The method further includes determining a number of N PDCCH reception occasions in M≥1 slots within a period according to the periodicity. A n-th PDCCH reception occasion from the N PDCCH reception occasions is according to a n-th search space set from the N search space sets. The method further includes receiving N PDCCHs in the N PDCCH reception occasions.

公开(公告)号：US12028868B2

公开(公告)日：2024-07-02

申请号：US17453337

申请日：2021-11-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Aris Papasakellariou

IPC: H04W72/23 ,  H04W52/02

CPC classification number: H04W72/23 ,  H04W52/0216

Abstract: A user equipment (UE), a base station, and a method for receiving physical downlink control channels (PDCCHs). The UE includes a receiver and a processor and is configured to receive a configuration for one or more search space sets (SSS) for reception of PDCCHs. The UE is configured to determine a PDCCH reception occasion according to the configuration of the one or more search space sets. The PDCCH reception occasion is prior to an ON duration of a discontinuous reception (DRX) cycle after a second DRX cycle. The UE is also configured to determine an indication to either receive the PDCCHs when the PDCCH reception occasion does not overlap with an extended Active Time of the second DRX cycle or to suspend reception of the PDCCHs when the PDCCH reception occasion overlaps with the extended Active Time of the second DRX cycle.

公开(公告)号：US20240080763A1

公开(公告)日：2024-03-07

申请号：US18505040

申请日：2023-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Aris Papasakellariou

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W52/0225 ,  H04L5/0048 ,  H04W72/21 ,  H04W72/23

Abstract: A user equipment (UE), a base station (BS), and a method for managing UE operation in C-DRX. The UE includes a transceiver configured to receive configurations for a drx-onDurationTimer, search space sets for reception of a PDCCH, a first set of CSI-RS resources, SS/PBCH blocks, and a PUCCH resources; and the PDCCH that provides a DCI format including a field indicating whether or not to start the drx-onDurationTimer. A processor is configured to determine an indication by the field to not start the drx-onDurationTimer, and determine reception occasions for the first set of CSI-RS resources during the ON duration. The transceiver is configured to receive the first set of CSI-RS resources or the SS/PBCH blocks during at least one of the reception occasions. The processor is also configured to determine a CSI report based on a reception occasion, which can be transmitted using the PUCCH resource during the ON duration.

公开(公告)号：US11917662B2

公开(公告)日：2024-02-27

申请号：US17664303

申请日：2022-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Aris Papasakellariou ,  Hongbo Si

IPC: H04W72/53 ,  H04L5/10 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04L1/0026 ,  H04L5/0051 ,  H04L5/10 ,  H04W24/10 ,  H04W72/23

Abstract: A UE includes a receiver configured to receive a first configuration for a first CORESET, a second configuration for a reception of a first CSI-RS, and the first CSI-RS. The first configuration includes a first TCI state. The TCI state for a CORESET indicates a set of quasi co-location properties for a PDCCH reception in the CORESET. A PDCCH includes a DCI format. The second configuration includes a first set of REs and the first TCI state. The UE also includes a processor operably connected to the receiver. The processor is configured to compute a first CQI value, based on the first CSI-RS, for a first PDCCH reception in the first CORESET and at least one CQI value based on the first CQI value. The UE further includes a transmitter operably connected to the processor, the transmitter configured to transmit a channel that includes the at least one CQI value.

公开(公告)号：US11856516B2

公开(公告)日：2023-12-26

申请号：US17806245

申请日：2022-06-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Aris Papasakellariou

IPC: G08C17/00 ,  H04W52/02 ,  H04L5/00 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W52/0225 ,  H04L5/0048 ,  H04W72/21 ,  H04W72/23

Abstract: A user equipment (UE), a base station (BS), and a method for managing UE operation in C-DRX. The UE includes a transceiver configured to receive configurations for a drx-onDurationTimer, search space sets for reception of a PDCCH, a first set of CSI-RS resources, SS/PBCH blocks, and a PUCCH resources; and the PDCCH that provides a DCI format including a field indicating whether or not to start the drx-onDurationTimer. A processor is configured to determine an indication by the field to not start the drx-onDurationTimer, and determine reception occasions for the first set of CSI-RS resources during the ON duration. The transceiver is configured to receive the first set of CSI-RS resources or the SS/PBCH blocks during at least one of the reception occasions. The processor is also configured to determine a CSI report based on a reception occasion, which can be transmitted using the PUCCH resource during the ON duration.

公开(公告)号：US20230328756A1

公开(公告)日：2023-10-12

申请号：US18185354

申请日：2023-03-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbo Si ,  Qiongjie Lin

IPC: H04W72/232

CPC classification number: H04W72/232

Abstract: Apparatuses and methods for dynamic adaptation of a time domain resource for periodic or semi-persistent downlink signal are provided. A method of operating a user equipment (UE) includes receiving a set of configurations from a higher layer, identifying a first set of configurations from the set of configurations indicating resources for reception of downlink signals, and identifying a second set of configurations from the set of configurations for a physical downlink control channel (PDCCH) including a downlink control information (DCI) format. The DCI format includes adaptation information. The method further includes receiving the downlink signals based on the first set of configurations, receiving the PDCCH including the DCI format based on the second set of configurations, identifying, based on the adaptation information, a third set of configurations indicating the resources for reception of the downlink signals, and receiving the downlink signals based on the third set of configurations.

公开(公告)号：US11637670B2

公开(公告)日：2023-04-25

申请号：US17249288

申请日：2021-02-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qiongjie Lin ,  Hongbo Si

IPC: H04L5/00 ,  H04W72/04 ,  H04W56/00 ,  H04W72/044

Abstract: Methods and apparatus for channel state information reference signal (CSI-RS) in RRC_IDLE/INACTIVE state. A method for operating a user equipment (UE) includes receiving a first configuration for periodic CSI-RS/tracking reference signal (TRS) reception occasions for idle/inactive UEs. A periodic CSI-RS/TRS reception occasion includes one or more CSI-RS resources, and each of the one or more CSI-RS resources is associated with a spatial reception parameter. The method further includes receiving a second configuration for a paging occasion (PO). The PO includes a number of physical downlink control channel (PDCCH) reception occasions The method further includes receiving an availability indication for one or more periodic CSI-RS/TRS reception occasions from the periodic CSI-RS reception occasions, receiving the one or more periodic CSI-RS/TRS reception occasions in time before the PO; and determining a time or frequency offset based on the one or more periodic CSI-RS/TRS reception occasions.