公开(公告)号：US20170171772A1

公开(公告)日：2017-06-15

申请号：US14967483

申请日：2015-12-14

Applicant: Cisco Technology, Inc.

Inventor： John Martin Blosco ,  Matthew Aaron Silverman ,  John Matthew Swartz ,  Joshua David Suhr ,  Paul J. Stager

IPC: H04W28/04 ,  H04W36/30 ,  H04W36/04 ,  H04W24/08 ,  H04L1/00

CPC classification number: H04W36/06 ,  H04L1/0061 ,  H04L41/0816 ,  H04L43/0829 ,  H04W24/08 ,  H04W28/04 ,  H04W36/04 ,  H04W36/30 ,  H04W84/12

Abstract: Noise floor degradation detection may be provided. First, an incremental packet loss rate for a secondary radio may be calculated that indicates an impact on packet reception on the secondary radio due to transmissions by a primary radio. The secondary radio and the primary radio may comprise an access point. Next, it may be determined that the incremental packet loss rate is greater than a predetermined value. A configuration of the access point may be changed in response to determining that the incremental packet loss rate is greater than the predetermined value.

公开(公告)号：US20250039639A1

公开(公告)日：2025-01-30

申请号：US18360625

申请日：2023-07-27

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Robert Badea ,  Robert Edgar Barton ,  Jerome Henry

IPC: H04W4/029 ,  H04W56/00 ,  H04W64/00

Abstract: Disclosed are systems, apparatuses, methods, computer readable medium, and circuits for tracking location by a positioning service. According to at least one example, a method includes: receiving distance measurements from a first anchor device; determining a trust value associated with a path between the first anchor device and a second anchor device based on the distance measurements, wherein the trust value corresponds to whether the path is obstructed; determining a first measurement interval to measure a distance from the first anchor device to the second anchor device based on a single-sided measurement and a second measurement interval to measure the distance from the first anchor device to the second anchor device based on a double-sided measurement; and sending an anchor configuration to the first anchor device including the first measurement interval for the single-sided measurement and the second measurement interval for the double-sided measurement of the second anchor device.

公开(公告)号：US12126480B2

公开(公告)日：2024-10-22

申请号：US18171702

申请日：2023-02-21

Applicant: Cisco Technology, Inc.

Inventor： Ardalan Alizadeh ,  Sivadeep Reddy Kalavakuru ,  Matthew Aaron Silverman ,  Mohsen Jamalabdollahi ,  Fred Jay Anderson

IPC: H04L27/26 ,  H04B1/04

CPC classification number: H04L27/2623 ,  H04B1/0475 ,  H04B2001/0408

Abstract: Crest Factor Reduction (CFR) parameters are determined for a dual band Power Amplifier (PA). A first band of the dual band PA is associated with a first Multi-Link Operation (MLO) link and a second band of the dual band PA is associated with a second MLO link. Determining the CFR parameters comprises determining based on a configuration of the first MLO link and the second MLO link. A first portion of the CFR parameters is provided to a first crest factor reduction block. First portion of the CFR parameters comprises a first clipping threshold associated with the first band and first filter coefficients associated with the first band. A second portion of the CFR parameters is provided to a second crest factor reduction block. The second portion of the CFR parameters comprises a second clipping threshold associated with the second band and second filter coefficients associated with the second band.

公开(公告)号：US20240283688A1

公开(公告)日：2024-08-22

申请号：US18171702

申请日：2023-02-21

Applicant: Cisco Technology, Inc.

Inventor： Ardalan Alizadeh ,  Sivadeep Reddy Kalavakuru ,  Matthew Aaron Silverman ,  Mohsen Jamalabdollahi ,  Fred Jay Anderson

IPC: H04L27/26 ,  H04B1/04

CPC classification number: H04L27/2623 ,  H04B1/0475 ,  H04B2001/0408

Abstract: Crest Factor Reduction (CFR) parameters are determined for a dual band Power Amplifier (PA). A first band of the dual band PA is associated with a first Multi-Link Operation (MLO) link and a second band of the dual band PA is associated with a second MLO link. Determining the CFR parameters comprises determining based on a configuration of the first MLO link and the second MLO link. A first portion of the CFR parameters is provided to a first crest factor reduction block. First portion of the CFR parameters comprises a first clipping threshold associated with the first band and first filter coefficients associated with the first band. A second portion of the CFR parameters is provided to a second crest factor reduction block. The second portion of the CFR parameters comprises a second clipping threshold associated with the second band and second filter coefficients associated with the second band.

公开(公告)号：US20240171988A1

公开(公告)日：2024-05-23

申请号：US17990783

申请日：2022-11-21

Applicant: Cisco Technology, Inc.

Inventor： John Matthew Swartz ,  Jerome Henry ,  Robert Edgar Barton ,  Matthew Aaron Silverman ,  Fred Jay Anderson ,  Vishal Satyendra Desai

IPC: H04W16/14 ,  H04W72/14

CPC classification number: H04W16/14 ,  H04W72/14 ,  H04W84/12

Abstract: Presented herein are techniques to allocate use of controlled wireless spectrum. A method includes receiving, from a wireless local area network service provider, a request for wireless local area network spectrum for a future time window, wherein the wireless local area network spectrum is subject to automated frequency coordination, in response to the request, sending, to an incumbent that uses the wireless local area network spectrum, a query consistent with the request for the wireless local area network spectrum for the future time window, receiving, from the incumbent, in response to the query, a grant to use the wireless local area network spectrum for the future time window, and in response to receiving the grant, sending permission to the wireless local area network service provider to use the wireless local area network spectrum for the future time window.

公开(公告)号：US20240155368A1

公开(公告)日：2024-05-09

申请号：US17982824

申请日：2022-11-08

Applicant: Cisco Technology, Inc.

Inventor： John Matthew Swartz ,  Jerome Henry ,  Robert Edgar Barton ,  Matthew Aaron Silverman ,  Fred Jay Anderson ,  Joshua D. Suhr

IPC: H04W16/20 ,  H04W4/021 ,  H04W24/02

CPC classification number: H04W16/20 ,  H04W4/021 ,  H04W24/02 ,  H04W84/12

Abstract: Techniques herein facilitate dynamic configuration of a wireless local area network (WLAN) for large public venue (LPV) environments. In one example, a method may include providing an initial configuration for access points APs of a WLAN for an event at an LPV based on a profile for the event, a location of each AP for the venue, and anticipated demand at the APs; determining, for a particular time for the event, a distribution of wireless devices and channel support capabilities of the wireless devices different locations for the LPV; and providing an updated configuration for one or more APs at the one or more locations for the venue based on the distribution of the wireless devices and the channel support capabilities of the wireless devices determined for the particular time for the event at the LPV.

公开(公告)号：US20240147383A1

公开(公告)日：2024-05-02

申请号：US17977329

申请日：2022-10-31

Applicant: Cisco Technology, Inc.

Inventor： Fred Jay Anderson ,  John Matthew Swartz ,  Jerome Henry ,  Robert Edgar Barton ,  Matthew Aaron Silverman ,  Danielle N. Bane

IPC: H04W52/28 ,  H04W52/36

CPC classification number: H04W52/283 ,  H04W52/367

Abstract: A method for providing adaptive radio transmit power based on antenna pattern and elevation tilt measured through an accelerometer is provided. The method includes estimating an orientation of a wireless device using an orientation sensor integrated in or on the wireless device, and determining an adjustment factor for a transmitter of the wireless device based on the orientation. The method further includes adjusting output power of the transmitter of the wireless device based on the adjustment factor.

公开(公告)号：US11678347B2

公开(公告)日：2023-06-13

申请号：US17145249

申请日：2021-01-08

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Michael Barry DeLong ,  Guru Prasanna Gopalakrishnan

IPC: H04W72/04 ,  H04W72/51 ,  G01S3/26 ,  H04W72/044 ,  H04W84/12

CPC classification number: H04W72/51 ,  G01S3/26 ,  H04W72/046 ,  H04W84/12

Abstract: A method may be provided. One or more packets from a client may be received, in a block based modulation environment, at one or more switchable antennas of an access point. The access point may have a plurality of switchable antennas. Each switchable antenna may have an antenna state. The plurality of switchable antennas may be switched among such that at least five of the antenna states are sampled. Angle of arrival of the client may be calculated based on the at least five of the antenna states.

公开(公告)号：US11644525B2

公开(公告)日：2023-05-09

申请号：US17089119

申请日：2020-11-04

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Jerome Henry ,  Robert Edgar Barton ,  Sivadeep R. Kalavakuru

IPC: G01S5/02 ,  H04B17/318 ,  H04W4/80 ,  G01S5/00

CPC classification number: G01S5/0249 ,  G01S5/0036 ,  G01S5/0244 ,  H04B17/318 ,  H04W4/80

Abstract: A location server collects from access points at known locations in a venue, which is represented by grid locations defined by parameters accessible to the location server, (i) ultra wideband (UWB) location measurements for a UWB location technology based on UWB transmissions from mobile devices in the venue, and (ii) non-UWB location measurements for non-UWB location technologies based on non-UWB transmissions from the mobile devices. The location server associates the non-UWB location measurements for the non-UWB location technologies with the grid locations, using the UWB location measurements as reference measurements. The location server populates location calibration records for the grid locations of the venue with the non-UWB location measurements associated with the grid locations. The location server calibrates the non-UWB location technologies at the grid locations based on the non-UWB location measurements in the location calibration records associated with the grid locations.

公开(公告)号：US20230084649A1

公开(公告)日：2023-03-16

申请号：US18057902

申请日：2022-11-22

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Khashayar Mirfakhraei ,  Gautam D. Bhanage

IPC: H04W48/16 ,  H04W48/20 ,  H04W72/04

Abstract: Optimal determination of a Wireless Local Area Network (WLAN) sounding method and system may be provided. An Access Point (AP) selects a subchannel for the partial sounding. The AP then sounds the selected subchannel. A client station responds with Channel State Information (CSI). The AP can receive the CSI, from the client station, in response to the sounding. Based on the CSI from the selected subchannel, the AP extrapolates the CSI to determine predicted CSI for a wider bandwidth channel.