公开(公告)号：US20220232504A1

公开(公告)日：2022-07-21

申请号：US17575527

申请日：2022-01-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou

IPC: H04W56/00 ,  H04W74/08 ,  H04W72/12

Abstract: Apparatuses and methods for uplink transmission timing in non-terrestrial networks (NTNs). A method for operating a user equipment includes receiving: first information, by a system information block, indicating a value of a first time offset; second information, by a medium access control (MAC) control element (CE), indicating a value of a second time offset; and a first channel in a first time unit associated with a transmission of a second channel in a second time unit. The method includes determining: a value of a third time offset based on a sum of the first and second time offsets and the second time unit based on the first time unit and the value of the third time offset and transmitting the second channel in the second time unit.

公开(公告)号：US20220095372A1

公开(公告)日：2022-03-24

申请号：US17447564

申请日：2021-09-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou ,  Emad N. Farag

IPC: H04W74/08 ,  H04W72/12 ,  H04W74/00 ,  H04L5/00

Abstract: Methods and apparatuses for determining spatial settings during a random access procedure. A method for operating a user equipment includes determining a first physical random access channel (PRACH) preamble for transmission in a first PRACH occasion (RO) using a first spatial setting and determining a second PRACH preamble for transmission in a second RO using a second spatial setting. The method further includes transmitting the first PRACH preamble in the first RO using the first spatial setting and transmitting the second PRACH preamble in the second RO using the second spatial setting. The method further includes receiving a first physical downlink control channel (PDCCH) scheduling a reception of a first physical downlink shared channel (PDSCH) using a third spatial setting associated with the first spatial setting, or a second PDCCH scheduling a reception of a second PDSCH using a fourth spatial setting associated with the second spatial setting.

公开(公告)号：US12225458B2

公开(公告)日：2025-02-11

申请号：US17930380

申请日：2022-09-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou

IPC: H04W52/02 ,  H04W52/14 ,  H04W52/22 ,  H04W52/26 ,  H04W52/28 ,  H04W52/32 ,  H04W72/0446 ,  H04W72/232

Abstract: Methods and apparatuses for same power transmissions. The method includes receiving first information indicating use of a same power for transmission of a channel over more than one slot and second information indicating use of a same power, after a change in power, for transmission of the channel over more than one slot. The method further includes determining a first number of consecutive slots, a second number of consecutive slots, from the first number of consecutive slots, for transmission of the channel with a same power, and a third number of consecutive slots, from the first number of consecutive slots and after the second number of consecutive slots, for transmission of the channel with a same power. The method further includes transmitting the channel with a first power in slots from the second number of consecutive slots and a second power in slots from the third number of consecutive slots.

公开(公告)号：US12219609B2

公开(公告)日：2025-02-04

申请号：US17653099

申请日：2022-03-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou

IPC: H04W4/00 ,  H04W74/0833

Abstract: Apparatuses and methods for resource selection for physical channels during initial access. A method of operating a user equipment (UE) includes receiving first information indicating a first partition of physical random access channel (PRACH) resources into a first group and a second group. A first PRACH transmission using a first PRACH resource from the first group of PRACH resources indicates a first set of features for the UE. A second PRACH transmission using a second PRACH resource from the second group of PRACH resources indicates a second set of features for the UE. The UE further includes determining a PRACH resource from the first group of PRACH resources or from the second group of PRACH resources and transmitting a PRACH using the determined PRACH resource in a RACH occasion (RO).

公开(公告)号：US20240340723A1

公开(公告)日：2024-10-10

申请号：US18615921

申请日：2024-03-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Shiyang Leng

IPC: H04W36/00 ,  H04B17/318 ,  H04W72/1268 ,  H04W72/232

CPC classification number: H04W36/00725 ,  H04B17/328 ,  H04W72/1268 ,  H04W72/232

Abstract: Methods and apparatuses for uplink transmissions and receptions for random access channel (RACH)-less handover. A method includes receiving information for a first configuration for RACH-less handover procedure in a system information block (SIB) from a source cell, a first set of synchronization signal (SS) and physical broadcast channel (PBCH) (SS/PBCH) block indexes, a physical uplink shared channel (PUSCH) for a transmission of the PUSCH on a target cell, and a number of repetitions of the transmission of the PUSCH on the target cell. The method further includes determining a spatial setting for the transmission of the PUSCH and transmitting the PUSCH with the number of repetitions using the spatial setting on the target cell.

公开(公告)号：US20230319903A1

公开(公告)日：2023-10-05

申请号：US18188299

申请日：2023-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbo Si ,  Emad N. Farag ,  Carmela Cozzo

IPC: H04W74/08 ,  H04W72/1263

CPC classification number: H04W74/0875 ,  H04W74/0808 ,  H04W72/1263

Abstract: Methods and apparatuses for channel access procedure priority on a sidelink (SL) in a wireless communication system. A method of a user equipment (UE) includes determining a type of a SL channel access procedure before a SL transmission, which is a Type 1 SL channel access procedure or a Type 2 SL channel access procedure, and determining, based on a type of the SL transmission, a channel access priority class (CAPC) when the type of the SL channel access procedure is the Type 1 SL channel access procedure, wherein the CAPC is associated with a parameter p. The method further includes performing, based on the type of the SL channel access procedure and the CAPC, the SL channel access procedure before the SL transmission and performing the SL transmission if the SL channel access procedure is successfully performed.

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：US20230091270A1

公开(公告)日：2023-03-23

申请号：US17930380

申请日：2022-09-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou

IPC: H04W52/02 ,  H04W52/26

Abstract: Methods and apparatuses for same power transmissions. The method includes receiving first information indicating use of a same power for transmission of a channel over more than one slot and second information indicating use of a same power, after a change in power, for transmission of the channel over more than one slot. The method further includes determining a first number of consecutive slots, a second number of consecutive slots, from the first number of consecutive slots, for transmission of the channel with a same power, and a third number of consecutive slots, from the first number of consecutive slots and after the second number of consecutive slots, for transmission of the channel with a same power. The method further includes transmitting the channel with a first power in slots from the second number of consecutive slots and a second power in slots from the third number of consecutive slots.

公开(公告)号：US20220109540A1

公开(公告)日：2022-04-07

申请号：US17448679

申请日：2021-09-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou ,  Emad N. Farag

IPC: H04L5/00 ,  H04W74/08 ,  H04B17/318

Abstract: Methods and apparatus for random access procedures with spatial settings. A method of operating a user equipment includes receiving a system information block (SIB). The SIB indicates a set of channel state information reference signals (CSI-RS) resources for CSI-RSs, a set of random access occasions (ROs), and a mapping between the set of ROs and the set of CSI-RS resources. The method further includes determining a first RO from the set of ROs for transmission of a first physical random access channel (PRACH), determining a first spatial setting for the first PRACH transmission based on a first CSI-RS resource from the set of CSI-RS resources that is mapped to the first RO, and transmitting the first PRACH in the first RO using the first spatial setting.

公开(公告)号：US20210360660A1

公开(公告)日：2021-11-18

申请号：US17302492

申请日：2021-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Carmela Cozzo ,  Aristides Papasakellariou ,  Ebrahim MolavianJazi

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/14 ,  H04W74/08

Abstract: Methods and apparatuses for coverage enhancement of Msg3. A method for operating a user equipment includes receiving a system information block (SIB) that provides information mapping physical random access channel (PRACH) resources to enable or disable repetitions for a physical uplink shared channel (PUSCH) transmission in a random access procedure and a first time domain resource allocation (TDRA) table. An entry of the first TDRA table indicates a number of repetitions of a PUSCH transmission. The method further includes determining a PRACH resource for transmission of a PRACH, determining, based on the PRACH resource, a TDRA table from between the first TDRA table or a predetermined second TDRA table. No entry of the second TDRA table indicates a number of repetitions for a PUSCH transmission. The method further includes receiving a first grant scheduling transmission of a first PUSCH and transmitting the first PUSCH.