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公开(公告)号：US20250048200A1
公开(公告)日：2025-02-06
申请号：US18776161
申请日：2024-07-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shiyang Leng , Anil Agiwal , Emad Nader Farag
Abstract: A User equipment (UE) transmits, to a base station, a capability information indicating whether the UE supports UE-based timing advance measurement, and receives, from the base station, an indication indicating whether UE-based timing advance measurement is enabled for a candidate cell for layer 1/layer 2 triggered mobility (LTM). The UE configures UE-based timing advance measurement for the candidate cell for LTM based on the indication, and performs UE-based timing advance measurement for the candidate cell for LTM. The UE receives a cell switch command from the base station. When a valid timing advance is not included in the cell switch command, the UE switches to the candidate cell for LTM by applying a timing advance measured by the UE. When the valid timing advance is included in the cell switch command, the UE switches to the candidate cell for LTM by applying the valid timing advance.
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公开(公告)号：US20240323777A1
公开(公告)日：2024-09-26
申请号：US18603055
申请日：2024-03-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Anil Agiwal , Shiyang Leng , Kyeongin Jeong
CPC classification number: H04W36/0072 , H04W36/08
Abstract: Methods and apparatuses for a random access for lower layer signal based mobility in a wireless communication system. A method of a UE comprises: receiving an RRC reconfiguration message including a set of configurations of candidate cells for LTM; receiving an early TA command for acquisition of an early TA, the early TA command indicating a candidate cell configuration index; identifying, based on the RRC reconfiguration message, a configuration from the set of configurations associated with the candidate cell configuration index; and transmitting, based on the configuration, a RA preamble for the acquisition of the early TA for a candidate cell associated with the candidate cell configuration index.
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公开(公告)号：US20240276335A1
公开(公告)日：2024-08-15
申请号：US18424519
申请日：2024-01-26
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shiyang Leng , Kyeongin Jeong , Hongbo Si
CPC classification number: H04W36/30 , H04W36/362
Abstract: Methods and apparatuses for a cell reselection evaluation based on a low-reception-power signal in a wireless communication system. A method of a UE comprises: receiving first configuration information including an identification (ID) of at least one cell capable of using low-power (LP) signals and second configuration information including a set of threshold parameters for a cell reselection operation using the LP signals; performing, based on the first configuration information, a measurement operation on the LP signals; and performing, based on the set of threshold parameters and a measurement result of the measurement operation, the cell reselection operation.
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公开(公告)号：US20240031844A1
公开(公告)日：2024-01-25
申请号：US18348246
申请日：2023-07-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyeongin Jeong , Shiyang Leng
CPC classification number: H04W24/08 , H04W64/00 , H04B7/18519
Abstract: Methods and apparatuses for an enhanced radio link failure (RLF) detection in a non-terrestrial network (NTN) are provided. A method of operating a user equipment (UE) includes identifying a value of a timer and a time value and determining that the timer has started upon detection of a radio link problem. The radio link problem is based on a first counter. The method further includes determining that a current time is passed the time value and detecting a radio link failure based on a determination that the timer has started and the current time is passed the time value.
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公开(公告)号：US20230397231A1
公开(公告)日：2023-12-07
申请号：US18321648
申请日：2023-05-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyeongin Jeong , Shiyang Leng
IPC: H04W72/25 , H04L1/1812 , H04L5/00
CPC classification number: H04W72/25 , H04L5/001 , H04L1/1812
Abstract: Methods and apparatuses for an UE operation upon RLF detection in a SL CA in a wireless communication system. A method of operating a UE includes receiving, from a base station (BS), configuration information about multiple sidelink (SL) carriers for a SL carrier aggregation (CA) operation; when a hybrid automatic repeat request (HARQ) feedback corresponding to s SL carrier among the multiple SL carriers is not received for consecutive N times and the SL carrier is not a last configured SL carrier, releasing the SL carrier for a corresponding destination layer 2 identifier (L2 ID); and when the HARQ feedback corresponding to the SL carrier among the multiple SL carriers is not received for a consecutive M times and the SL carrier is the last configured SL carrier, releasing a PC5-radio resource control (PC5-RRC) connection for the corresponding destination L2 ID.
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Patent Agency Ranking
公开(公告)号：US11800479B2
公开(公告)日：2023-10-24
申请号：US17304937
申请日：2021-06-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shiyang Leng , Jeongho Jeon , Qiaoyang Ye , Joonyoung Cho , Caleb Lo
CPC classification number: H04W56/005 , H04B7/01 , H04W74/0833 , H04W84/06
Abstract: Methods and apparatuses for uplink timing and frequency synchronization in a wireless communication system. A method for operating a user equipment (UE) includes receiving, from a base station (BS), information indicating satellite ephemeris information of a communication satellite associated with the BS, a common timing advance (TA), and a compensated frequency offset (FO). The method further includes transmitting a physical random access channel (PRACH) based on the common TA and the compensated FO and receiving a random access response (RAR) indicating a UE-specific TA and FO. The method further includes, for transmission of an uplink (UL) channel, adjusting a TA and pre-compensating a FO based on the UE-specific TA and FO, respectively.
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公开(公告)号：US20230033259A1
公开(公告)日：2023-02-02
申请号：US17806068
申请日：2022-06-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shiyang Leng , Hao Chen , Ahmed Atef Ibrahim Ibrahim , Namjeong Lee , Sooyoung Hur
IPC: H04B7/0456 , H04L1/00
Abstract: Apparatuses and methods for precoding matrix indicator (PMI)-based data beam nulling with a channel state information (CSI) report. An apparatus includes a transceiver configured to communicate via a wired or wireless communication medium and a processor coupled to the transceiver. The processor is configured to identify restricted PMI beams in a nulling direction for supported ranks; receive, via the transceiver from a user equipment (UE), a CSI report including a rank, a PMI, and channel quality indicator (CQI) feedback; and determine whether the reported PMI is restricted. The processor is further configured to select an alternative PMI among a number of unrestricted PMIs for the reported rank; boost a reported CQI if a reduced transmit power is configured; and select a modulation coding scheme (MCS) and generate a precoder for a data beam based on at least one of: the CSI report, the alternative PMI, and the boosted CQI.
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公开(公告)号：US20220408367A1
公开(公告)日：2022-12-22
申请号：US17834848
申请日：2022-06-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rubayet Shafin , Boon Loong Ng , Peshal Nayak , Shiyang Leng
Abstract: Methods and apparatuses for facilitating notification of an impending TDLS transmission in a wireless local area network. The apparatuses include a non-access point (AP) multi-link device (MLD) comprising stations (STAs) and a processor. Each STA comprises a transceiver configured to transceive signals on multi-link operation (MLO) links with APs of an AP MLD and on tunneled direct link setup (TDLS) direct links between the STAs and peer STAs of a second non-AP MLD, and to transmit, to the AP MLD on one of the MLO links, a TDLS transmission notification message. The processor is configured to determine that a TDLS transmission is impending over one of the TDLS direct links from one of the STAs that forms a non-simultaneous transmit/receive (NSTR) link pair with another STA, and to generate the TDLS transmission notification message, which includes an indication that the TDLS transmission is impending.
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公开(公告)号：US20250008598A1
公开(公告)日：2025-01-02
申请号：US18735000
申请日：2024-06-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Anil Agiwal , Shiyang Leng , Kyeongin Jeong
IPC: H04W76/28
Abstract: Methods and apparatuses for energy saving operations in a wireless communication system. A method of a UE comprises: receiving, from a base station, an RRC message indicating (i) a payload size of cell DTX/DRX activation/deactivation DCI for at least one cell group and (ii) a starting position of a cell DTX/DRX information for at least one cell in DCI; receiving the cell DTX/DRX activation/deactivation DCI; identifying the cell DTX/DRX information for the at least one cell in the DCI based on (i) the payload size of the cell DTX/DRX activation/deactivation DCI corresponding to the at least one cell group and (ii) the starting position of the cell DTX/DRX information corresponding to the at least one cell; and activating or deactivating a cell DTX/DRX configuration of the at least one cell based on the identified cell DTX/DRX information in the cell DTX/DRX activation/deactivation DCI.
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公开(公告)号：US20250008459A1
公开(公告)日：2025-01-02
申请号：US18741483
申请日：2024-06-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hongbo Si , Emad Nader Farag , Carmela Cozzo , Kyeongin Jeong , Shiyang Leng , Anil Agiwal
Abstract: Apparatuses and methods for a sidelink synchronization signal block (S-SSB) structure for larger subcarrier spacing. A method performed by a user equipment (UE) in a wireless communication system includes determining a number M of consecutive orthogonal frequency division multiplexing (OFDM) symbols for a sidelink synchronization signals and physical sidelink broadcast channel (S-SS/PSBCH) block and determining a slot group of S consecutive slots including a number NSSB of S-SS/PSBCH blocks. The method further includes determining a time domain pattern for a number NperiodS-SSB of S-SS/PSBCH blocks within a period and receiving the S-SS/PSBCH block based on the time domain pattern.
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