公开(公告)号：US11456765B2

公开(公告)日：2022-09-27

申请号：US17209754

申请日：2021-03-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Gangminh Lee ,  Daeyoung Kim

IPC: H04L5/12 ,  H04B1/10 ,  H04B1/04 ,  H04B15/04

Abstract: A wireless communication device includes a transmission radio frequency (RF) chain configured to transmit a radio signal, and processing circuitry configured to cause the wireless communication device to detect that the transmission RF chain has transited from an inactive state to a first active state, determine whether to detect an updated value of a phase of a self-interference signal in response to detecting that the transmission RF chain has transited from the inactive state to the first active state, and modify a weight vector of an adaptive filter corresponding to the self-interference signal based on the updated value of the phase or a previous value of the phase.

公开(公告)号：US10965359B2

公开(公告)日：2021-03-30

申请号：US16794753

申请日：2020-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Junho Lee ,  Sungyoon Cho

IPC: H04B7/06 ,  H04W16/28 ,  H04B7/0408 ,  H04B7/155

Abstract: Provided is a method of operating a wireless communication device including a phased array including a first antenna group and a second antenna group to form a beam for transmitting and receiving signals polarized in different directions, which includes receiving first signals polarized in a first direction; receiving second signals polarized in a second direction; measuring power of the first signals and power of the second signals; analyzing a relationship between a channel corresponding to the first receiving beam and a channel corresponding to the second receiving beam; estimating power of third signals that are expected to be received through the first antenna group and power of fourth signals that are expected to be received through the second antenna group; and selecting a receiving beam pattern for wireless communication.

公开(公告)号：US20200274593A1

公开(公告)日：2020-08-27

申请号：US16794753

申请日：2020-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Junho Lee ,  Sungyoon Cho

IPC: H04B7/06 ,  H04B7/155 ,  H04W16/28 ,  H04B7/0408

Abstract: Provided is a method of operating a wireless communication device including a phased array including a first antenna group and a second antenna group to form a beam for transmitting and receiving signals polarized in different directions, which includes receiving first signals polarized in a first direction; receiving second signals polarized in a second direction; measuring power of the first signals and power of the second signals; analyzing a relationship between a channel corresponding to the first receiving beam and a channel corresponding to the second receiving beam; estimating power of third signals that are expected to be received through the first antenna group and power of fourth signals that are expected to be received through the second antenna group; and selecting a receiving beam pattern for wireless communication.

公开(公告)号：US20240179033A1

公开(公告)日：2024-05-30

申请号：US18505927

申请日：2023-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daeyoung Kim ,  Joontae Kim ,  Hyunseok Yu ,  Youngik Cho

IPC: H04L25/03 ,  H04L25/02

CPC classification number: H04L25/03006 ,  H04L25/025 ,  H04L2025/0349 ,  H04L2025/03636

Abstract: Provided is an interference cancellation circuit including a relative delay control circuit receiving a first transmission signal of a first frequency, and a second transmission signal of a second frequency different from the first frequency and including a first delay buffer delaying the second transmission signal by a first delay time and a second delay buffer delaying the second transmission signal by a second delay time, a delay reference generation circuit generating respective reference signals by receiving the first transmission signal and the delayed second transmission signal from the relative delay control circuit, a weight control circuit updating a weight vector, a relative delay estimation circuit estimating a relative delay based on the reference signals, and an adaptive filter generating an interference model signal based on the weight vector and a first reference signal of the reference signals and filter the interference model signal from a received signal.

公开(公告)号：US11239890B2

公开(公告)日：2022-02-01

申请号：US16686336

申请日：2019-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joontae Kim ,  Junho Lee

IPC: H04B7/06 ,  H04B7/0456 ,  H04W72/04

Abstract: A method of operating a wireless communication apparatus including an antenna array including a plurality of sub-arrays includes sweeping a receiving beam formed in each of the sub-arrays such that the receiving beam has a plurality of receiving beam patterns at a respective plurality of sweeping positions, and receiving a signal through the antenna array at each of the sweeping positions, generating base channel matrix information including channel matrices corresponding to the receiving beam patterns for each of the sub-arrays, based on the signal, performing a digital sweeping operation on at least one group combination, which is determined using the base channel matrix information, and generating supplemental channel matrix information, and selecting a receiving beam pattern of the antenna array using the base channel matrix information and the supplemental channel matrix information.

公开(公告)号：US20200288421A1

公开(公告)日：2020-09-10

申请号：US16795897

申请日：2020-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Kiil Kim ,  Hyunseok Yu

IPC: H04W56/00 ,  H04W72/04 ,  H04W24/10 ,  H04B17/336 ,  H04B17/318

Abstract: A method of operating a wireless communication device for correcting an offset between a base station and the wireless communication device includes determining whether to perform offset correction using a first target synchronization signal block (SSB) to generate a determination result in response to changing a selected reception beam from a first reception beam to a second reception beam in an SSB period, the first target SSB being received via the second reception beam, and performing the offset correction on the second reception beam using at least one first neighbor SSB based on the determination result, the at least one first neighbor SSB being received via the first reception beam.

公开(公告)号：US20240204977A1

公开(公告)日：2024-06-20

申请号：US18540065

申请日：2023-12-14

Applicant: Samsung electronics CO., LTD.

Inventor： Daeyoung Kim ,  Joontae Kim ,  Hyunseok Yu ,  Gangminh Lee ,  Youngik Cho

IPC: H04L5/14

CPC classification number: H04L5/1461

Abstract: An interference cancellation circuit includes: an activation circuit configured to receive at least one transmission path signal and a reception path signal and configured to generate an activation control signal based on at least one of the reception path signal and the at least one transmission path signal; a forgetting factor control circuit configured to compare a control metric with a plurality of threshold values and control a forgetting factor value based on the control metric compared with the plurality of threshold values; a kernel generation circuit configured to receive a transmission signal corresponding to the at least one transmission path signal and configured to generate an interference model; and an adaptive filter configured to receive a kernel signal from the kernel generation circuit, and configured to receive the forgetting factor value from the forgetting factor control circuit to cancel self-interference.

公开(公告)号：US11528067B2

公开(公告)日：2022-12-13

申请号：US17215144

申请日：2021-03-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Junho Lee ,  Sungyoon Cho

IPC: H04B7/06 ,  H04W16/28 ,  H04B7/0408 ,  H04B7/155

Abstract: Provided is a method of operating a wireless communication device including a phased array including a first antenna group and a second antenna group to form a beam for transmitting and receiving signals polarized in different directions, which includes receiving first signals polarized in a first direction; receiving second signals polarized in a second direction; measuring power of the first signals and power of the second signals; analyzing a relationship between a channel corresponding to the first receiving beam and a channel corresponding to the second receiving beam; estimating power of third signals that are expected to be received through the first antenna group and power of fourth signals that are expected to be received through the second antenna group; and selecting a receiving beam pattern for wireless communication.

公开(公告)号：US11425674B2

公开(公告)日：2022-08-23

申请号：US16795897

申请日：2020-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Kiil Kim ,  Hyunseok Yu

IPC: H04W56/00 ,  H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04W72/04

Abstract: A method of operating a wireless communication device for correcting an offset between a base station and the wireless communication device includes determining whether to perform offset correction using a first target synchronization signal block (SSB) to generate a determination result in response to changing a selected reception beam from a first reception beam to a second reception beam in an SSB period, the first target SSB being received via the second reception beam, and performing the offset correction on the second reception beam using at least one first neighbor SSB based on the determination result, the at least one first neighbor SSB being received via the first reception beam.