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    System and method for downlink multi-user MIMO feedback
    1.
    发明授权
    System and method for downlink multi-user MIMO feedback 有权

    公开(公告)号：US12155465B2

    公开(公告)日：2024-11-26

    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.

    Multi link TXOP aggregation
    3.
    发明授权
    Multi link TXOP aggregation 有权

    公开(公告)号：US12016045B2

    公开(公告)日：2024-06-18

    申请号：US17735808

    申请日：2022-05-03

    Applicant: Samsung Electronics Co., Ltd.

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

    IPC: H04W72/50 ,  H04W24/08

    CPC classification number: H04W72/535 ,  H04W24/08

    Abstract: A method of providing multi-link operation channel access in a multi-link network includes initiating a first backoff countdown and a second backoff countdown associated with a first link and a second link of the multi-link network, respectively, and in response to the first backoff countdown reaching zero, determining whether the second backoff countdown is less than or equal to an aggregation threshold, and in response to determining that the second backoff countdown is less than or equal to the aggregation threshold, transmitting a first frame and a second frame on the first and second links.

    Systems, methods, and devices for association and authentication for multi access point coordination
    5.
    发明授权
    Systems, methods, and devices for association and authentication for multi access point coordination 有权

    公开(公告)号：US11696129B2

    公开(公告)日：2023-07-04

    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 ,  H04W12/041

    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.

    FEEDBACK GENERATION FOR LINK ADAPTATION
    7.
    发明申请
    FEEDBACK GENERATION FOR LINK ADAPTATION 有权

    公开(公告)号：US20230067808A1

    公开(公告)日：2023-03-02

    申请号：US17883528

    申请日：2022-08-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ruchen Duan ,  Wook Bong Lee ,  Vamadevan Namboodiri ,  Srinivas Kandala ,  Ashok Ranganath

    IPC: H04L1/00 ,  H04L1/20

    Abstract: A system and method for feedback for link adaptation. In some embodiments, the method includes: receiving, by a receiver, a first transmission from a transmitter; calculating a first estimated packet error rate, for a first modulation and coding scheme and a first number of spatial streams, the first modulation and coding scheme having a first modulation and coding scheme index; determining that the first estimated packet error rate is less than a threshold; and in response to determining that the first estimated packet error rate is less than the threshold, calculating a second estimated packet error rate, for a second modulation and coding scheme.

    APPARATUS AND METHOD FOR BLOCK ACKNOWLEDGEMENT WITHIN REDUCED DURATION
    9.
    发明申请
    APPARATUS AND METHOD FOR BLOCK ACKNOWLEDGEMENT WITHIN REDUCED DURATION 有权

    公开(公告)号：US20220173872A1

    公开(公告)日：2022-06-02

    申请号：US17455041

    申请日：2021-11-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jonghun Han ,  Chulho Chung ,  Srinivas Kandala ,  Myeongjin Kim ,  Eunsung Jeon

    IPC: H04L5/00 ,  H04L1/16

    Abstract: The present disclosure provides a wireless communication method. The wireless communication method includes a first device used to negotiate a buffer size with a second device, provide data including a duration field to the second device, and receive a first block acknowledgement from the second device. The first block acknowledgement may include a first block acknowledgement bitmap. The duration field included in the data from the first device may include an indication of a duration associated with the first block acknowledgment that is less than an upper bound duration associated with a second block acknowledgement that includes a second block acknowledgement bitmap with a maximum length.

    METHOD AND SYSTEM FOR DYNAMIC ACCESS POINT SELECTION IN COORDINATED ACCESS POINT GROUP
    10.
    发明申请
    METHOD AND SYSTEM FOR DYNAMIC ACCESS POINT SELECTION IN COORDINATED ACCESS POINT GROUP 有权

    公开(公告)号：US20220167265A1

    公开(公告)日：2022-05-26

    申请号：US17592935

    申请日：2022-02-04

    Applicant: Samsung Electronics Co., Ltd.

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

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

    Abstract: A method and device are provided for dynamic access point (AP) selection by a coordinator in a coordinated AP group. The coordinator of the coordinated AP group receives one or more link quality metrics for each link between a station (STA) and each of a plurality of member APs in the coordinated AP group, from the plurality of member APs. The coordinator selects an anchor AP for the STA from the plurality of member APs based on the one or more link quality metrics for each link. The anchor AP is used to relay transmissions between the STA and the coordinator. Authentication of the STA with the 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.

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