公开(公告)号：US20240008057A1

公开(公告)日：2024-01-04

申请号：US18331685

申请日：2023-06-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vamadevan NAMBOODIRI ,  Wook Bong LEE ,  Srinivas KANDALA ,  Ruchen DUAN

IPC: H04W72/27 ,  H04W48/16

CPC classification number: H04W72/27 ,  H04W88/08 ,  H04W48/16

Abstract: A system and a method are disclosed for controlling a coordinating network entity in a virtual network including a plurality of access points (APs) and at least one wireless station (STA), including receiving one or more parameters from at least one AP included in the plurality of APs; identifying a first multi-AP coordination scheme based on the one or more parameters; and assigning the first multi-AP coordination scheme to a first dynamic group of network entities included in the virtual network, wherein the first dynamic group of network entities performs wireless communication based on the first multi-AP coordination scheme.

公开(公告)号：US20230328519A1

公开(公告)日：2023-10-12

申请号：US18209468

申请日：2023-06-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sharan NARIBOLE ,  Srinivas KANDALA ,  Wook Bong LEE ,  Ashok RANGANATH

IPC: H04W12/06 ,  H04W12/041

CPC classification number: H04W12/06 ,  H04W12/041

Abstract: A method for associating and authenticating a station (STA) with a coordinated access point (AP) group may include generating a pairwise master key (PMK) between the STA and a coordinator of the coordinated AP group, and maintaining an association and authentication state between the STA and the coordinated AP group based on the PMK. The method may further include generating one or more temporal keys between the STA and the coordinator based on the PMK. The method may further include distributing the PMK from the coordinator to a first member AP and a second member AP of the coordinated AP group. The method may further include generating a first temporal key between the STA and the first member AP, and generating a second temporal key between the STA and the second member AP.

公开(公告)号：US20210399771A1

公开(公告)日：2021-12-23

申请号：US17342680

申请日：2021-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： MINKI AHN ,  Wook Bong LEE ,  SUNGSOO KIM ,  JOONSUK KIM ,  EUN SUNG JEON

IPC: H04B7/0426 ,  H04B7/0456

Abstract: An operation method of a transmitting device such as an access point providing wireless communication includes receiving a feedback of channel response information from an external communication device, generating a beam steering matrix based on the channel response information, generating a power allocation matrix based on an average SNR for each of a plurality of streams included in the channel response information, and performing beamforming on the external communication device based on the generated power allocation matrix and the generated beam steering matrix. The channel response information is a compressed beamforming feedback of multiple input multiple output single user beamforming. A first power allocated to a first stream, of which an average SNR is a first value, from among the plurality of streams is larger than a second power allocated to a second stream, of which an average SNR is a second value greater than the first value.

公开(公告)号：US20200084712A1

公开(公告)日：2020-03-12

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: H04W48/20 ,  H04W12/06 ,  H04W24/10 ,  H04B17/318

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：US20200007204A1

公开(公告)日：2020-01-02

申请号：US16233628

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun Sung JEON ,  Min Ki AHN ,  Wook Bong LEE ,  Sung Soo KIM ,  Joon Suk KIM

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04L1/00 ,  H04L5/00

Abstract: A method for wireless communications includes: receiving a sounding packet from an access point; determining a rank of a channel matrix corresponding to a communications channel; and when the rank of the channel matrix is a full rank: selecting at least one of a plurality of pieces of codebook information previously stored in a memory, as beamforming information, transmitting the beamforming information to the access point, and applying channel smoothing to a communications channel provided by the access point.

公开(公告)号：US20230413255A1

公开(公告)日：2023-12-21

申请号：US18366307

申请日：2023-08-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sharan NARIBOLE ,  Srinivas KANDALA ,  Wook Bong LEE ,  Ashok RANGANATH

IPC: H04W72/0453

CPC classification number: H04W72/0453 ,  H04W88/08

Abstract: Disclosed is a method of setting conditions for an access point (AP) to be included in an AP candidate set of a coordinating AP for a transmission opportunity (TXOP), including setting a first primary channel of the AP as part of the AP candidate set of the coordinating AP within a basic service set (BSS) operating bandwidth of the coordinating AP, and coordinating AP updates in the AP candidate set when a coordinated AP that is part of the AP candidate set performs a channel switch to a second primary channel operating on a different bandwidth stream than a bandwidth stream of the first primary channel.

公开(公告)号：US20220216937A1

公开(公告)日：2022-07-07

申请号：US17497847

申请日：2021-10-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pavankumar VEERASHETTY ,  Wook Bong LEE ,  Ashok RANGANATH ,  Ravi GIDVANI ,  Shailender KARMUCHI ,  Srinivas KANDALA

IPC: H04L1/00 ,  H04B7/06

Abstract: A system and method for downlink feedback in communications between a station and an access point. In some embodiments, the method includes: receiving, from the access point, by the station, a null data packet announcement (NDPA) including a first number of spatial streams, and sending, by the station, to the access point, a Compressed Beamforming Report (CBR) including a second number of spatial streams, different from the first number of spatial streams; or sending, by the station, to the access point, an Operating Mode Indication (OMI) declaring a change in a station Modulation Coding Scheme (MCS) capability for a third number of spatial streams; or sending, by the station, to the access point, an Association Request including a declared Single-User (SU) MCS capability for a first bandwidth and a declared Multi-User (MU) MCS capability for the first bandwidth, the MU MCS capability being different from the SU MCS capability.

公开(公告)号：US20210084493A1

公开(公告)日：2021-03-18

申请号：US16944135

申请日：2020-07-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sharan NARIBOLE ,  Srinivas KANDALA ,  Wook Bong LEE ,  Ashok RANGANATH

IPC: H04W12/06 ,  H04W12/04

Abstract: A method for associating and authenticating a station (STA) with a coordinated access point (AP) group may include generating a pairwise master key (PMK) between the STA and a coordinator of the coordinated AP group, and maintaining an association and authentication state between the STA and the coordinated AP group based on the PMK. The method may further include generating one or more temporal keys between the STA and the coordinator based on the PMK. The method may further include distributing the PMK from the coordinator to a first member AP and a second member AP of the coordinated AP group. The method may further include generating a first temporal key between the STA and the first member AP, and generating a second temporal key between the STA and the second member AP.

公开(公告)号：US20210076419A1

公开(公告)日：2021-03-11

申请号：US16942215

申请日：2020-07-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sharan NARIBOLE ,  Srinivas KANDALA ,  Wook Bong LEE ,  Ashok RANGANATH

IPC: H04W74/08 ,  H04L5/00

Abstract: Methods and devices are provided for multi-link transmission opportunity aggregation. A first enhanced ready to send (RTS) transmission is received on a first link. A second enhanced RTS transmission is received on a second link. The second enhanced RTS transmission is received concurrently with the first enhanced RTS transmission. At least one non-overlapping clear to send (CTS) transmission is transmitted over the first link and/or the second link. A first transmission is received over the first link. The first transmission includes a first packet extension (PE). A second transmission is received over the second link. The second transmission is received concurrently with the first transmission and includes a second PE. Feedback with respect to both the first transmission and the second transmission is transmitted over one of the first link and the second link after reception of a respective one of the first PE and the second PE.

公开(公告)号：US20240064714A1

公开(公告)日：2024-02-22

申请号：US18364083

申请日：2023-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Srinivas KANDALA ,  Wook Bong LEE ,  Ruchen DUAN ,  Vamadevan NAMBOODIRI ,  Mark RISON

IPC: H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/0446 ,  H04W72/0453

Abstract: Methods and apparatuses are provided in which an access point (AP) transmits a trigger frame to one or more user equipments (UEs). The trigger frame includes an indication of allocated resource units (RUs) for random access (RA). A UE allocates respective data to a sets of RUs for RA that are consecutive in a single frequency segment over a time domain of a physical protocol data unit (PPDU), based on the trigger frame. The UE transmits the PPDU to the AP.