公开(公告)号：US20210119893A1

公开(公告)日：2021-04-22

申请号：US16655065

申请日：2019-10-16

Applicant: Cisco Technology, Inc.

Inventor： Ardalan Alizadeh ,  Gautam Dilip Bhanage ,  Benjamin Jacob Cizdziel ,  Khashayar Mirfakhraei ,  Matthew Aaron Silverman

IPC: H04L12/26 ,  H04W72/08 ,  H04L29/14 ,  H04W52/24

Abstract: Inter-protocol interference reduction for hidden nodes may be provided. A first service end point may determine that an inter-protocol interference is present on a channel. Next, an initial packet failure count value on the channel may be determined. A transmit (Tx) power for selected packets may then be increased until a subsequent packet failure count value on the channel is less than the initial packet failure count value.

公开(公告)号：US20210051486A1

公开(公告)日：2021-02-18

申请号：US16542056

申请日：2019-08-15

Applicant: Cisco Technology, Inc.

Inventor： Santosh Ghanshyam Pandey ,  Vishal Satyendra Desai ,  Jerome Henry ,  Matthew Aaron Silverman

IPC: H04W16/26 ,  H04W24/10 ,  H04L1/00 ,  H04W40/24 ,  H04W72/04

Abstract: Client analytics-driven dynamic channel assignment may be provided. At a client, Radio Frequency (RF) channels may be scanned to detect access points of a network. A subset of the access points belonging to a same Extended Set Service (ESS) of the network may be determined based on data collected from the access points during the scan. For each access point in the subset, a Channel Quality Index (CQI) may be measured for an RF channel assigned to the access point, and a non-preferred channel report may be generated based on the CQI. The non-preferred channel report may be transmitted from the client to a network management system for use in dynamic channel assignment.

公开(公告)号：US20200288323A1

公开(公告)日：2020-09-10

申请号：US16293218

申请日：2019-03-05

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Daniel Joseph Lyons ,  Pooya Monajemi ,  John Matthew Swartz

IPC: H04W16/10 ,  H04W74/08 ,  H04L1/00 ,  H04W72/04 ,  H04W80/08 ,  H04B17/336 ,  H04W72/08

Abstract: In one illustrative example, a device configured for use in a wireless local area network (WLAN) may cause a spatial reuse (SR) adjustment to be performed based on data received from a multi-user receiver procedure for the blind detection and demodulation of colliding packets from multiple stations. This procedure may be performed by one or more access points (APs) and/or distributed sensor nodes, each having such a multi-user receiver. The procedure may involve receiving and decoding, over a channel, a first spatial stream from a first device of a first base service set (BSS) color; simultaneously receiving and decoding, over the channel, a second spatial stream from a second device of a second BSS color (i.e. an overlapping BSS or “OBSS”); and calculating a signal-to-interference ratio (SIR) based on signal levels associated with the streams. The SR adjustment may involve adjusting an OBSS Packet Detect (PD) (OBSS-PD) threshold.

公开(公告)号：US20200287633A1

公开(公告)日：2020-09-10

申请号：US16292962

申请日：2019-03-05

Applicant: Cisco Technology, Inc.

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

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

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.

公开(公告)号：US20200158810A1

公开(公告)日：2020-05-21

申请号：US16356662

申请日：2019-03-18

Applicant: Cisco Technology, Inc.

Inventor： Xu Zhang ,  Abhishek Mukherji ,  Huy Phuong Tran ,  Vinay S. Raghuram ,  Matthew Aaron Silverman

IPC: G01S5/02 ,  H04W24/04 ,  H04W64/00 ,  G01S5/06

Abstract: Systems and methods provide for improving the accuracy of a location system. The location system can capture partial phase vector data from one or more access points (APs). The location system can capture associated data associated with the partial phase vector data across multiple dimensions, such as identity data of the APs and client devices generating the partial phase vector data and frequency band data, location data, a time and date, and other data associated with the partial phase vector data. The location system can determine correlation data across the multiple dimensions using the first partial phase vector data and the associated data. The location system can a cause of the partial phase vector data based on the correlation data. The location system can perform one or more remediation actions based on the cause of the partial phase vector data.

公开(公告)号：US20200077425A1

公开(公告)日：2020-03-05

申请号：US16115506

申请日：2018-08-28

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Qing Zhao ,  John T. Chapman ,  Dantong Liu

IPC: H04W72/12 ,  H04W72/14 ,  G06F15/18

Abstract: Systems, methods, and computer-readable media for coordinating scheduling between a wireless scheduler and a backhaul scheduler to reduce uplink data transmission latency. In some examples, an uplink data prediction for uplink data to transmit over a wireless connection of a wireless network is identified by a wireless scheduler of a wireless network. The uplink data prediction can be provided to a backhaul scheduler of a backhaul of the wireless network. The wireless scheduler can be coordinated with the backhaul scheduler by the backhaul scheduler to coordinate transmission of the uplink data through the backhaul based on the uplink data prediction. The uplink data can then be received at the backhaul for transmission through the backhaul based on the uplink data prediction.

公开(公告)号：US20190124672A1

公开(公告)日：2019-04-25

申请号：US15792624

申请日：2017-10-24

Applicant: Cisco Technology, Inc.

Inventor： Amir Hosein Kamalizad ,  Matthew Aaron Silverman

IPC: H04W72/12 ,  H04L25/02 ,  H04B17/336 ,  H04W72/08

Abstract: A method for transmitting a data transmission based on the classification of an interfering signal is described. The method comprises transmitting a first data transmission within a frequency band and detecting an interfering signal within the frequency band. The method comprises classifying the interfering signal as one of a plurality of interfering signal types. The method comprises transmitting, based on the classification, a second data transmission within the frequency band.

公开(公告)号：US20170118655A1

公开(公告)日：2017-04-27

申请号：US15043336

申请日：2016-02-12

Applicant: Cisco Technology, Inc.

Inventor： John Martin Blosco ,  Stephen Joseph McCarthy ,  Matthew Aaron Silverman ,  Erin Patrick McGough

IPC: H04W16/28 ,  H01Q21/28

CPC classification number: H04W16/28

Abstract: In one implementation, a device includes a first set of antennas having a first polarization; and a first radio coupled to the first set of antennas, the combination of the first set of antennas and the first radio supporting a first signal. The device also includes: a second set of antennas having a second polarization, the second polarization is different from the first polarization; and a second radio coupled to the second set of antennas, the combination of the second set of one or more antennas and the second radio supporting a second signal, the second signal is independent of the first signal. In some implementations, the first radio is operated according to a first power level in order to establish the first coverage area, and the second radio is operated according to a second power level in order to establish the second coverage area.

公开(公告)号：US12267101B2

公开(公告)日：2025-04-01

申请号：US18301511

申请日：2023-04-17

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Robert E. Barton ,  Brian D. Hart ,  Jerome Henry ,  Ardalan Alizadeh ,  Vishal S. Desai ,  John Matthew Swartz

IPC: H04B1/7183 ,  H04W84/12

Abstract: Access Point ranging and placement on a floorplan may be provided. A host AP may range each neighbor AP of the host AP. One or more neighbor APs that failed ranging with the host AP may be categorized in a failed neighbor AP list. The host AP may re-range each of the one or more neighbor APs in the failed neighbor AP list with a modified ranging parameter. At least one neighbor AP of the one or more neighbor APs may be categorized in the failed neighbor AP list that succeeded in re-ranging with the host AP in an extended range neighbor AP list.

公开(公告)号：US20240283506A1

公开(公告)日：2024-08-22

申请号：US18171774

申请日：2023-02-21

Applicant: Cisco Technology, Inc.

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

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0617

Abstract: Connection issue prediction may be provided. A computing device may receive first Channel State Information (CSI) for a first link associated with a client device. The first CSI may be collected when beamforming was trained on a second link associated with the client device. Second CSI may be received for the first link associated with the client device. The second CSI may be collected at a time subsequent to when beamforming was trained on the second link associated with the client device. A correlation between the first CSI and the second CSI may be determined to be below a predetermined threshold. A status of the beamforming performed on the second link associated with the client device may be set to stale in response to determining that the correlation between the first CSI and the second CSI is below the predetermined threshold.