公开(公告)号：US11910313B2

公开(公告)日：2024-02-20

申请号：US17242999

申请日：2021-04-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Md Majharul Islam Rajib ,  Tianyu Wu ,  Wook Bong Lee ,  Ashok Ranganath

IPC: H04W52/02 ,  H04W74/08

CPC classification number: H04W52/0216 ,  H04W52/0248 ,  H04W74/085

Abstract: A method for communicating over a WiFi channel. In some embodiments, the method includes determining, by a non-access point station, that a first skipping criterion is met; in response to determining that the first skipping criterion is met, skipping N1 target wait time service periods, N1 being a positive integer; after skipping N1 target wait time service periods, determining, by the non-access point station, whether a second skipping criterion is met; and in response to determining that the second skipping criterion is met, skipping N2 subsequent target wait time service periods, N2 being a positive integer greater than N1.

公开(公告)号：US11811687B2

公开(公告)日：2023-11-07

申请号：US17824600

申请日：2022-05-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tianyu Wu ,  Wook Bong Lee ,  Minyoung Park

IPC: H04W4/00 ,  H04L5/00 ,  H04W88/06 ,  H04W72/0453 ,  H04W28/26

CPC classification number: H04L5/0041 ,  H04L5/0012 ,  H04L5/0035 ,  H04L5/0039 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/0092 ,  H04W72/0453 ,  H04W88/06 ,  H04W28/26

Abstract: A method for allowing wireless communication between an access point and a wireless station in a wireless communication network includes: providing at least one from a combination of a 2.4 GHz frequency band and a 5 GHz frequency band; providing a frequency band including a 6 GHz frequency band for allowing wireless data communication; assigning a first data communication channel having a first frequency bandwidth in the frequency band including the 6 GHz frequency band between the access point and the wireless station; and transmitting data packets between the access point and the wireless station via the first data communication channel in the frequency band including the 6 GHz frequency band. Each of the 2.4 GHz frequency band and the 5 GHz frequency band includes a plurality of subchannels having a first base frequency bandwidth of 20 MHz, and the frequency band including the 6 GHz frequency band includes a plurality of subchannels having a second base frequency bandwidth that is larger than the first base frequency 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：US11272442B2

公开(公告)日：2022-03-08

申请号：US16529335

申请日：2019-08-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tianyu Wu ,  Wook Bong Lee ,  Ashok Ranganath ,  Srinivas Kandala

IPC: H04W4/00 ,  H04W48/20 ,  H04B17/318 ,  H04W24/10 ,  H04W12/06

Abstract: A system and method for dynamic access point (AP) selection by a station (STA) in a coordinated AP group is herein disclosed. According to an embodiment, a STA obtains one or more link quality metrics for each link between the STA and each of a plurality of member APs in the coordinated AP group. The STA dynamically selects at least one anchor AP for the STA from the plurality of member APs based on the one or more link quality metrics for each link. The at least one anchor AP being used to relay transmission between the STA and a coordinator of the coordinated AP group. Authentication of the STA with the at least one anchor AP is shared with all APs in the coordinated AP group, allowing the STA to utilize any subsequently selected anchor AP to relay transmissions without re-authentication.

公开(公告)号：US11258497B2

公开(公告)日：2022-02-22

申请号：US17188135

申请日：2021-03-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun Sung Jeon ,  Wook Bong Lee ,  Min Ki Ahn ,  Sung Soo Kim ,  Joon Suk Kim

IPC: H04B7/06

Abstract: A beam transmitting device improves performance of a communication channel. The beam transmitting device includes a controller configured to transmit a null data packet (NDP) and receive channel information; and a smoothing circuit configured to smooth a plurality of beamforming vectors in the channel information. The smoothing circuit includes a weight calculator configured to calculate a common phase factor using two adjacent beamforming vectors among the plurality of beamforming vectors, and a moving average filter configured to perform the smoothing using the common phase factor.

公开(公告)号：US20210076340A1

公开(公告)日：2021-03-11

申请号：US16943239

申请日：2020-07-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sharan NARIBOLE ,  Srinivas Kandala ,  Wook Bong Lee ,  Ashok Ranganath

IPC: H04W56/00

Abstract: Methods and a devices are provided is for receiving simultaneous downlink transmissions at a mobile station (STA). Information regarding whether endings of simultaneous data transmissions to the mobile station are to be aligned is transmitted to an access point (AP). The simultaneous data transmissions are between the AP and the STA over a pair of channels. Reception begins of a first data transmission, from the AP, on a first channel of the pair of channels. Reception begins of a second data transmission, from the AP, on a second channel of the pair of channels. The second data transmission overlaps at least a portion of the first data transmission. Reception of the second data transmission ends upon an end of the first data transmission when the information indicates that the endings of simultaneous downlink data transmissions are to be aligned.

公开(公告)号：US20210014844A1

公开(公告)日：2021-01-14

申请号：US16867197

申请日：2020-05-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong Lee ,  Ashok Ranganath

IPC: H04W72/04 ,  H04B1/7163 ,  H04W4/80 ,  H04W4/02

Abstract: A method of establishing communication between a first device and a second device to exchange ranging information is provided. According to an embodiment, the method includes: sending, by the first device to the second device via a first channel, or receiving, by the first device from the second device via the first channel, a first control message indicating a start time; sending, by the first device to the second device via a second channel, a second control message including one or more ranging parameter values for exchanging the ranging information, the second control message being sent at the start time; and exchanging, by the first device with the second device via the second channel, the ranging information over one or more ranging rounds.

公开(公告)号：US20200091970A1

公开(公告)日：2020-03-19

申请号：US16189156

申请日：2018-11-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong Lee ,  Tianyu Wu ,  Eunsung Jeon ,  Sungsoo Kim

IPC: H04B7/0417 ,  H04B7/06 ,  H04B17/336

Abstract: A method in a wireless station in communication with an access point over a communication channel includes receiving a channel estimation matrix; determining a beamforming matrix using the channel estimation matrix, the beamforming matrix being generated for a plurality of down-sampled feedback indices; the beamforming matrix including beamforming weights for one or more antennas associated with the access point, each beamforming weight being a complex value including an amplitude and a phase; setting the phase of the beamforming weight for a last antenna associated with the last feedback index of the beamforming matrix to zero and rotating the phase of each beamforming weight for each of the other antennas; performing smoothing of the beamforming matrix for each feedback index by normalizing each column vector of the beamforming matrix; compressing the smoothed beamforming matrix; and providing the smoothed beamforming matrix as output.