公开(公告)号：US20250158850A1

公开(公告)日：2025-05-15

申请号：US18930930

申请日：2024-10-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Samuel Albert ,  Thuy Van Nguyen ,  Yeqing Hu ,  Yang Li ,  Yan Xin ,  Jianzhong Zhang

IPC: H04L25/02 ,  H04B17/336

Abstract: A method includes acquiring, by a processor of an electronic device, information associated with channel and noise covariances. The method includes determining one or more time-domain rectangular filters based on the information associated with the channel and noise covariances. The method includes generating one or more convolutional kernels based on the one or more rectangular filters applied to the channel and noise covariances in a time-domain. The method includes generating a codebook based on the one or more convolutional kernels, the codebook comprising N codewords. Further, the method can include establishing a communication link to a gNB configured to: receive a reference signal from a user equipment; receive the codebook; calculate channel statistics using a low complexity algorithm; execute a decision tree classifier to select a codeword from the codebook stored in memory of the gNB; and apply the selected codeword as convolution kernel for channel estimation.

公开(公告)号：US20240421858A1

公开(公告)日：2024-12-19

申请号：US18604406

申请日：2024-03-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Thuy Van Nguyen ,  Yang Li ,  R A Nadisanka Perera Rupasinghe ,  Kyung-Joong Kim

IPC: H04B7/024 ,  H04B7/06

Abstract: A method of operating a network entity includes transmitting, via a first TRP and a second TRP, a first DL RS; receiving from a UE, based on the first DL RS, first CSI; determining, based on the first CSI, a calibrated quadrant; transmitting, via the first TRP and the second TRP, a second DL RS based on the calibrated quadrant; and receiving from the UE, based on the second DL RS, second CSI. The method further includes, for N iterations, determining, based on the (N+1)th CSI, an adjusted calibrated phase; transmitting, via the first TRP and the second TRP, an (N+2)th DL RS based on the adjusted calibrated phase; and receiving from the UE, based on the (N+2)th DL RS, (N+2)th CSI. The method further includes, after the N iterations, determining, based on a most recently received (N+2)th CSI, a converged calibrated phase.

公开(公告)号：US20240333358A1

公开(公告)日：2024-10-03

申请号：US18525682

申请日：2023-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： R A Nadisanka Perera Rupasinghe ,  Yang Li ,  Thuy Van Nguyen ,  Jianzhong Zhang

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0639 ,  H04B7/0626 ,  H04B7/063 ,  H04L5/0051

Abstract: A method of operating a network entity includes receiving, from a UE, via a first TRP and a second TRP, a SRS, and estimating a channel based on the received SRS. The method further includes, for N iterations: transmitting, via the first TRP, a CSI-RS with a first polarization; transmitting, via the second TRP, the CSI-RS with a second polarization and a controlled phase offset; receiving, from the user equipment UE, a PMI report associated with the CSI-RS including co-phasing information between the first polarization and the second polarization; and updating the controlled phase offset, based on the co-phasing information. After the N iterations, the method further includes, based on the controlled phase offset and the co-phasing information, determining a phase mis-match for phase calibration between the first TRP and the second TRP.

公开(公告)号：US20240429982A1

公开(公告)日：2024-12-26

申请号：US18603107

申请日：2024-03-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Thuy Van Nguyen ,  Yang Li ,  R A Nadisanka Perera Rupasinghe

IPC: H04B7/06 ,  H04B17/12 ,  H04B17/21

Abstract: A method performed by a network entity includes determining a target timing mismatch for a phase timing slope between first and second channel state information-reference signal (CSI-RS) resources, and determining, based on the target timing mismatch, a first band separation between a first calibrated phase for the first the second CSI-RS resource and a second calibrated phase for the first and the second CSI-RS resource. The method further includes determining a first frequency band for the first calibrated phase, and determining, based on the band separation, a second frequency band for the second calibrated phase. The method further includes determining, based on the band separation between the first calibrated phase the second calibrated phase, a first phase timing slope between the first the second CSI-RS resource, and performing joint transmission from a first TRP and a second TRP based on the first phase timing slope.

公开(公告)号：US20240429974A1

公开(公告)日：2024-12-26

申请号：US18416510

申请日：2024-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： R A Nadisanka Perera Rupasinghe ,  Yang Li ,  Thuy Van Nguyen ,  Namjeong Lee ,  Dongwook Kim ,  Kyung-joong Kim

IPC: H04B7/0413 ,  H04B17/11 ,  H04B17/21

Abstract: A method of operating a network entity includes receiving, via a first TRP and a second TRP, information associated with a SRS from a UE, and estimating a channel based on the information associated with the SRS. The method further includes, for N iterations: transmitting, via a first CSI-RS port from a CSI-RS resource, from the first TRP, a CSI-RS; transmitting, via a second CSI-RS port from the CSI-RS resource, from the second TRP, the CSI-RS with a controlled phase offset; receiving a PMI report associated with the CSI-RS including a measured phase offset between the first CSI-RS port and the second CSI-RS port; and updating the controlled phase offset, based on the measured phase offset. The method further includes, after the N iterations, based on the controlled phase offset and the measured phase offset, determining a phase mis-match for phase calibration between the first TRP and the second TRP.

公开(公告)号：US20240187055A1

公开(公告)日：2024-06-06

申请号：US18484293

申请日：2023-10-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Thuy Van Nguyen ,  Yang Li ,  Yeqing Hu ,  R A Nadisanka Perera Rupasinghe ,  Jianzhong Zhang

IPC: H04B7/0456 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04B7/0486 ,  H04L1/1812 ,  H04W72/23

Abstract: A network entity includes a memory and a processor operable coupled to the memory. The processor is configured to determine a hybrid joint transmission (Hybrid-JT) signal for transmission from a wireless network associated with the network entity to a user equipment (UE). The Hybrid-JT signal includes a diversity joint transmission (Div-JT) component and a multiplexing joint transmission (Mux-JT) component. The processor is further configured to instruct the wireless network to transmit the Hybrid-JT signal to the UE.