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    WIRELESS SPECTRUM MANAGEMENT AND OPTIMIZATION FOR DUAL TRANSCEIVER OPERATION
    71.
    发明申请
    WIRELESS SPECTRUM MANAGEMENT AND OPTIMIZATION FOR DUAL TRANSCEIVER OPERATION 有权

    公开(公告)号：US20210297164A1

    公开(公告)日：2021-09-23

    申请号：US17342167

    申请日：2021-06-08

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew Aaron Silverman ,  Pooya Monajemi ,  Vishal Satyendra Desai ,  John Martin Blosco

    IPC: H04B15/00 ,  H04B17/318 ,  H04B1/38

    Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.

    DYNAMIC FRACTIONAL FREQUENCY REUSE
    74.
    发明申请
    DYNAMIC FRACTIONAL FREQUENCY REUSE 审中-公开

    公开(公告)号：US20200275282A1

    公开(公告)日：2020-08-27

    申请号：US16287207

    申请日：2019-02-27

    Applicant: Cisco Technology, Inc.

    Inventor： Qing Zhao ,  Dantong Liu ,  Fred Jay Anderson ,  Matthew Aaron Silverman

    IPC: H04W16/10 ,  H04W72/04

    Abstract: A distributed controller of local radio resources implements a hybrid FFR system. The distributed controller provides user channel information to a central controller of regional radio resources. The distributed controller also obtains an FFR plan from the central controller. The FFR plan designates for an access point associated with the distributed controller, a central frequency band, an edge frequency band, and a distribution of user devices connected to the access point. The distribution indicates whether each user device communicates with the access point via the central frequency band or via the edge frequency band. The distributed controller provisions the access pint to connect to the user devices according to the FFR plan, and adjusts the distribution of user devices locally based on a change in the user channel information.

    RSSI location tracking via radio scanning for triggered OFDMA uplink
    77.
    发明授权
    RSSI location tracking via radio scanning for triggered OFDMA uplink 有权

    公开(公告)号：US12231987B2

    公开(公告)日：2025-02-18

    申请号：US17555598

    申请日：2021-12-20

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Matthew Aaron Silverman ,  John Matthew Swartz ,  Ardalan Alizadeh ,  Jerome Henry

    IPC: H04W4/029 ,  H04B17/318 ,  H04W84/12

    Abstract: This technology allows for determining the location of client devices via radio scanning for triggered orthogonal frequency-division multiple access (“OFDMA”) uplinks. Access points (“APs”) are configured for OFDMA transmissions. A first AP transmits a trigger frame on particular channel to stations in the wireless network. Neighboring APs scan channels for trigger frames (“TF”). Upon detection of a TF, neighboring APs associate a station identifier with a frequency allocation, or resource unit, in the TF. The neighboring APs receive an OFDMA uplink from the stations, determine a received signal strength indicator (“RSSI”) value for each frequency allocation in the OFDMA uplink, and transmit the RSSI values with the associated station identifier to the first AP. The first AP determines the location of each station by mapping a distance value to the RSSI values.

    Restricted target wait time interference detection and management
    78.
    发明授权
    Restricted target wait time interference detection and management 有权

    公开(公告)号：US12219477B2

    公开(公告)日：2025-02-04

    申请号：US17816877

    申请日：2022-08-02

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew Aaron Silverman ,  Pooya Monajemi ,  Ardalan Alizadeh ,  Sivadeep Reddy Kalavakuru

    IPC: H04W52/02 ,  H04W52/28 ,  H04W72/0446 ,  H04W74/0816

    Abstract: Network traffic interference detection and management may be provided. An infringement event by an infringing Access Point (AP) on a Restricted Target Wake Time (rTWT) transmission opportunity (TxOp) associated with a victim AP may be detected, and information associated with the infringement event may be added to an infringement list, wherein the information includes a MAC address associated with the infringing AP. A controller, may receive the infringement list and notify the infringement event to the infringing AP. The infringing AP may determine whether a transmission associated with the infringement event is low latency and high priority. When the transmission is not low latency and high priority the infringing AP may modify future transmissions based on the notification. When the transmission is low latency and high priority the infringing AP may notify the controller that the transmission is low latency and high priority. The controller may then create a negotiation between the victim AP and the infringing AP, wherein the negotiation comprises managing future transmissions of the victim AP and the infringing AP.

    PHASE LOCK LOOP PHASE AMBIGUITY MITIGATION FOR MULTI-LINK OPERATION EXTRAPOLATED SOUNDING
    79.
    发明申请
    PHASE LOCK LOOP PHASE AMBIGUITY MITIGATION FOR MULTI-LINK OPERATION EXTRAPOLATED SOUNDING 有权

    公开(公告)号：US20240380640A1

    公开(公告)日：2024-11-14

    申请号：US18356550

    申请日：2023-07-21

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew Aaron Silverman ,  Malcolm Muir Smith ,  Brian Donald Hart ,  Indermeet Singh Gandhi ,  John Matthew Swartz

    IPC: H04L25/02 ,  H04W88/08

    Abstract: The present disclosure is directed to simultaneous channel sounding on multiple MLO channels followed by determining phase and amplitude corrections based on channel impulse responses obtained on each MLO channel. The corrections are then used in subsequent extrapolation of channel sounding on one channel to another. In one aspect, a method includes transmitting, on each radio interface of a first multi-link device, a corresponding sounding probe to a second multi-link device; determining, by each radio interface of the first multi-link device, a corresponding channel impulse response based on the corresponding sound probe to yield a plurality of channel impulse responses; determining an offset between the plurality of channel impulse responses; and using the offset during a subsequent extrapolation of a sounding probe on one radio interface to a second radio interface of the first multi-link device.

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