公开(公告)号：US11792835B2

公开(公告)日：2023-10-17

申请号：US17120049

申请日：2020-12-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruchen Duan ,  Mostafa Sayed Roshdy Ibrahim ,  Wook Bong Lee ,  Srinivas Kandala ,  Ashok Ranganath

IPC: H04L5/00 ,  H04W72/542 ,  H04W72/21

CPC classification number: H04W72/542 ,  H04L5/0055 ,  H04W72/21

Abstract: Systems and methods for providing feedback regarding a wireless communication channel is disclosed. A responding processor is configured to estimate condition of the wireless communication channel and generate a data field. The data field includes a communication parameter based on the estimated condition of the wireless communication channel. The data field is attached to a control frame, and the control frame is transmitted with the attached data field. A transmitting processor is configured to receive the control frame, and determine whether the control frame includes the data field. The transmitting processor retrieves the data field from the control frame, and selects, based on the communication parameter in the data field, a transmit parameter for transmitting data over the wireless communication channel.

公开(公告)号：US20200374032A1

公开(公告)日：2020-11-26

申请号：US16991987

申请日：2020-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong Lee ,  Moumita Ray ,  Ruchen Duan

IPC: H04L1/00 ,  H04L5/00 ,  H04B17/336 ,  H04L1/20

Abstract: A method for operating a link method includes estimating a plurality of throughputs, each throughput corresponding to one of a plurality of modulation and coding schemes, each one of the plurality of modulation and coding schemes corresponding to one of a plurality of combinations of spatial stream numbers and bandwidths, selecting a maximum throughput from the plurality of throughputs, and transmitting data according to a modulation and coding scheme, a spatial stream number, and a bandwidth corresponding to the maximum throughput.

公开(公告)号：US20200266918A1

公开(公告)日：2020-08-20

申请号：US16428695

申请日：2019-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong Lee ,  Moumita Ray ,  Ruchen Duan

IPC: H04L1/00 ,  H04L5/00 ,  H04L1/20 ,  H04B17/336

Abstract: A system and method for operating a link. In some embodiments, the method includes transmitting a first quantity of data, using a first number of spatial streams, and a first bandwidth, receiving N1 acknowledgment signals, N1 being a nonnegative integer; receiving N2 negative acknowledgment signals, N2 being a nonnegative integer; adjusting an estimated signal to interference and noise ratio for the first number of spatial streams and the first bandwidth, based on N1 and N2; estimating a first throughput for the first number of spatial streams and the first bandwidth; estimating a second throughput for a second number of spatial streams and a second bandwidth; determining whether the second throughput exceeds the first throughput; and in response to determining that the second throughput exceeds the first throughput, transmitting a second quantity of data, using the second number of spatial streams, and the second bandwidth.

公开(公告)号：US20230155730A1

公开(公告)日：2023-05-18

申请号：US18156247

申请日：2023-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa Sayed Roshdy Ibrahim ,  Wook Bong Lee ,  Ruchen Duan ,  Ashok Ranganath ,  Srinivas Kandala

IPC: H04L1/00

CPC classification number: H04L1/0069 ,  H04L1/0028

Abstract: A method for encoding or transmitting. In some embodiments, the method includes forming a set of one or more unpunctured codewords by coding a plurality of payload bits at a mother code rate, removing a plurality of punctured bits from the set of one or more unpunctured codewords to form a set of one or more punctured codewords, and transmitting the set of one or more punctured codewords. In some embodiments, the number of punctured bits exceeds a first threshold, or the number of punctured bits exceeds a second threshold.

公开(公告)号：US11336388B2

公开(公告)日：2022-05-17

申请号：US16991987

申请日：2020-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong Lee ,  Moumita Ray ,  Ruchen Duan

IPC: H04L1/00 ,  H04L5/00 ,  H04B17/336 ,  H04L1/20

Abstract: A method for operating a link method includes estimating a plurality of throughputs, each throughput corresponding to one of a plurality of modulation and coding schemes, each one of the plurality of modulation and coding schemes corresponding to one of a plurality of combinations of spatial stream numbers and bandwidths, selecting a maximum throughput from the plurality of throughputs, and transmitting data according to a modulation and coding scheme, a spatial stream number, and a bandwidth corresponding to the maximum throughput.

公开(公告)号：US11323148B2

公开(公告)日：2022-05-03

申请号：US17153533

申请日：2021-01-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa Sayed Roshdy Ibrahim ,  Ruchen Duan ,  Wook Bong Lee ,  Minki Ahn ,  Hyun Bae Jeon

IPC: H04B7/10 ,  H04B1/71 ,  H04B17/345 ,  H04B1/10 ,  H04L25/02 ,  H04L25/03

Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method estimating an interference whitening (IW) factor based on a legacy-long training field (LLTF) signal, updating the estimated IW factor during transmission of a data symbol, and scaling the data symbol based on the updated IW factor and the estimated IW factor.

公开(公告)号：US12003332B2

公开(公告)日：2024-06-04

申请号：US18078032

申请日：2022-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruchen Duan ,  Mostafa Sayed Roshdy Ibrahim ,  Wook Bong Lee ,  Srinivas Kandala ,  Ashok Ranganath

IPC: H04L1/18 ,  H04L1/1812 ,  H04L5/00 ,  H04W8/24

CPC classification number: H04L1/1819 ,  H04L5/0055 ,  H04L5/0092 ,  H04W8/24

Abstract: A method of implementing a hybrid automatic repeat request (HARQ) process. The method includes: transmitting, by a transmitter to a receiver, an initial transmission of the HARQ process; receiving, by the transmitter from the receiver, receiver decoding capability information; setting, by the transmitter, a retransmission duration based on the receiver decoding capability information; and implementing, by the transmitter, a retransmission of the HARQ process based on the retransmission duration.

公开(公告)号：US11901933B2

公开(公告)日：2024-02-13

申请号：US17734489

申请日：2022-05-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa Sayed Roshdy Ibrahim ,  Ruchen Duan ,  Wook Bong Lee ,  Minki Ahn ,  Hyun Bae Jeon

IPC: H04B7/10 ,  H04B1/71 ,  H04B17/345 ,  H04B1/10 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04B1/7102 ,  H04B1/10 ,  H04B17/345 ,  H04L25/022 ,  H04L25/03159

Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method includes deriving an estimated noise plus interference variance (NIVar) based on at least one legacy-long training field (LLTF) symbol from an LLTF signal; and updating an interference whitening (IW) factor by using a sub-band NIVar.

公开(公告)号：US20210184796A1

公开(公告)日：2021-06-17

申请号：US17098175

申请日：2020-11-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa Sayed Roshdy Ibrahim ,  Wook Bong Lee ,  Ruchen Duan ,  Ashok Ranganath ,  Srinivas Kandala

IPC: H04L1/00

Abstract: A method for encoding or transmitting. In some embodiments, the method includes forming a set of one or more unpunctured codewords by coding a plurality of payload bits at a mother code rate, removing a plurality of punctured bits from the set of one or more unpunctured codewords to form a set of one or more punctured codewords, and transmitting the set of one or more punctured codewords. In some embodiments, the number of punctured bits exceeds a first threshold, or the number of punctured bits exceeds a second threshold.

公开(公告)号：US10536239B2

公开(公告)日：2020-01-14

申请号：US15447899

申请日：2017-03-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbing Cheng ,  Ruchen Duan ,  Jungwon Lee

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L25/06

Abstract: A method and apparatus are provided. The method includes receiving, by a user equipment (UE), a first signal from a transceiver, determining one of a probability and a soft mean with a soft variance associated with the detected data symbol, determining a first coefficient and a second coefficient based on the determined one of the probability and the soft mean with the soft variance associated with the detected data symbol, determining channel state information (CSI) on a channel between the transceiver and the UE based on a second signal received by the UE from the transceiver, a previous CSI, the first coefficient and the second coefficient, and tracking the communication channel based on the determined CSI.