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    LOW-PROFILE ANGLE OF ARRIVAL ANTENNAS
    2.
    发明公开
    LOW-PROFILE ANGLE OF ARRIVAL ANTENNAS 审中-公开

    公开(公告)号：US20240027561A1

    公开(公告)日：2024-01-25

    申请号：US18481825

    申请日：2023-10-05

    Applicant: Cisco Technology, Inc.

    Inventor： Danielle N. BANE ,  Jonathan M. CYPHERT ,  Sivadeep R. KALAVAKURU ,  Ashish Pasha SHEIKH ,  Matthew A. SILVERMAN

    IPC: G01S3/04 ,  H01Q5/307 ,  H01Q7/00 ,  H01Q9/30 ,  H01Q21/20

    CPC classification number: G01S3/043 ,  H01Q5/307 ,  H01Q7/00 ,  H01Q9/30 ,  H01Q21/20 ,  G01S3/48

    Abstract: The present disclosure provides a dual mode antenna, comprising: a first conductive piece; and a second conductive piece, configured to electromagnetically couple with the first conductive piece through a dielectric at a second frequency to operate as a loop antenna with the first conductive piece and configured to operate independently of the first conductive piece at a first frequency to operate as a monopole antenna. The dual mode antenna can be included in an antenna array as one of a plurality of dual mode antennas coupled to a routing substrate or a reference dual mode antenna coupled to the routing substrate along with a plurality of single mode antennas coupled to the routing substrate; wherein each antenna of the plurality of dual mode antennas, the reference dual mode antenna, and the plurality of single mode antennas is arranged evenly relative to a first neighboring antenna and a second neighboring antenna.

    NETWORK WITH PILOT TONE OVERLAP AVOIDANCE
    5.
    发明申请
    NETWORK WITH PILOT TONE OVERLAP AVOIDANCE 有权

    公开(公告)号：US20240380559A1

    公开(公告)日：2024-11-14

    申请号：US18359737

    申请日：2023-07-26

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew A. SILVERMAN ,  Brian D. HART ,  Sivadeep R. KALAVAKURU ,  Ardalan ALIZADEH ,  John M. SWARTZ

    IPC: H04L5/00

    Abstract: The present disclosure describes a network and a method of operating the network. The method includes determining that a portion of a first channel of a first access point overlaps a portion of a second channel of a second access point and in response to determining that the portion of the first channel overlaps the portion of the second channel, adjusting the first access point so that the first access point refrains from transmitting using frequencies in the portion of the first channel that the second access point uses to transmit pilot tones in the portion of the second channel.

    ADAPTIVE CLIENT STEERING IN AN ACCESS POINT USING A MONITORING RADIO
    6.
    发明申请
    ADAPTIVE CLIENT STEERING IN AN ACCESS POINT USING A MONITORING RADIO 有权

    公开(公告)号：US20230029694A1

    公开(公告)日：2023-02-02

    申请号：US17443474

    申请日：2021-07-27

    Applicant: Cisco Technology, Inc.

    Inventor： Sivadeep R. KALAVAKURU ,  Ardalan ALIZADEH ,  Fred J. ANDERSON ,  John M. BLOSCO

    IPC: H04B7/08

    Abstract: In one embodiment, a system for allocating clients between radios of an access point is disclosed. The system includes a first antenna coupled to a first radio, a second antenna coupled to a second radio, and a monitoring radio coupled to the first antenna and second antenna. The system includes computer-readable instructions that cause the system to receive at the monitoring radio, a first client attribute from each of a plurality of first client devices, and a second client attribute from each of a plurality of second client devices, and provide each aforementioned attribute to an optimization function. The system determines, with the optimization function, that one of the first radio and second radio will optimize performance for at least one device of the plurality of first client devices and second client devices and steer the at least one device accordingly.

    MULTI-USER MIMO PEER-TO-PEER TRANSMISSION
    7.
    发明申请
    MULTI-USER MIMO PEER-TO-PEER TRANSMISSION 有权

    公开(公告)号：US20220416853A1

    公开(公告)日：2022-12-29

    申请号：US17305022

    申请日：2021-06-29

    Applicant: Cisco Technology, Inc.

    Inventor： Ardalan ALIZADEH ,  Matthew A. SILVERMAN ,  Pooya MONAJEMI ,  Gautam D. BHANAGE ,  Sivadeep R. KALAVAKURU

    IPC: H04B7/0456 ,  H04B7/0452 ,  H04B7/0404

    Abstract: Techniques for peer-to-peer (P2P) transmission in a multi-user (MU) multiple-input-multiple-output (MIMO) environment. A first wireless station (STA), including a plurality of radio antennas, identifies channel state information (CSI) relating to a connection between the first STA and a wireless access point (AP). The first STA determines connection information relating to a MU MIMO P2P connection between the first STA and a second STA. The first STA generates a plurality of values relating to precoding for the plurality of radio antennas, based on the CSI and the connection information. The first STA and the second STA exchange data over the P2P connection, using the plurality of values relating to precoding.

    REDUCING LATENCY IN OFDMA USING FRONT ENDS WITH ADAPTIVE LINEARITY
    10.
    发明申请
    REDUCING LATENCY IN OFDMA USING FRONT ENDS WITH ADAPTIVE LINEARITY 有权

    公开(公告)号：US20220368477A1

    公开(公告)日：2022-11-17

    申请号：US17302805

    申请日：2021-05-12

    Applicant: Cisco Technology, Inc.

    Inventor： Sivadeep R. KALAVAKURU ,  Ardalan ALIZADEH

    IPC: H04L5/00 ,  H04B1/04 ,  H04L1/00

    Abstract: Embodiments herein describe assigning different linearity operating points of a front end of a radio to groups of user devices when transmitting data using OFDMA. That is, when transmitting a PPDU to a first group of user devices, an access point (AP) may set the front end of the radio to a lower linearity operating point than when transmitting a PPDU to a second group of user devices. Using a higher linearity operating point can increase the data rate used to transmit the PPDU—e.g., the AP can use a higher modulation coding scheme (MCS). This can reduce the time the PPDUs have to wait in a queue before being transmitted.

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