公开(公告)号：US20240155710A1

公开(公告)日：2024-05-09

申请号：US18177020

申请日：2023-03-01

Applicant: Cisco Technology, Inc.

Inventor： Brian D. HART ,  Malcolm M. SMITH ,  Pooya MONAJEMI ,  Jerome HENRY ,  Robert E. BARTON ,  Matthew A. SILVERMAN

IPC: H04W76/14 ,  H04L67/104 ,  H04W24/08

CPC classification number: H04W76/14 ,  H04L67/104 ,  H04W24/08

Abstract: Techniques for improved peer-to-peer communication are provided. A set connectivity metrics among a set of wireless devices on a plurality of wireless channels in a wireless network is collected, and a wireless channel of the plurality of wireless channels is identified, based on the set of connectivity metrics, to use for peer-to-peer communication. A request is received, from a peer-to-peer device, for peer-to-peer communications, and the wireless channel is indicated to the peer-to-peer device, where the peer-to-peer device uses the first wireless channel for peer-to-peer communications in response to the indication.

公开(公告)号：US20240015788A1

公开(公告)日：2024-01-11

申请号：US18150691

申请日：2023-01-05

Applicant: Cisco Technology, Inc.

Inventor： Matthew A. SILVERMAN ,  Brian D. HART ,  Ardalan ALIZADEH ,  Robert E. BARTON ,  Jerome HENRY ,  Juan Carlos ZUNIGA ,  Malcolm M. SMITH ,  Scott R. BLUE ,  John M. SWARTZ

IPC: H04W74/08 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04W74/0816 ,  H04L5/0007 ,  H04L5/0055 ,  H04L1/0058

Abstract: Disclosed methods and systems for efficiently gathering reports from stations coupled to an access point via a wireless network. In some cases, the reports may be attached to block acknowledge frames, which often occur. Alternatively, when multiple stations operate with assigned resource units during a transmission opportunity (TXOP), the reports are embedded in the spare capacity of a physical protocol data units used during the TXOP.

公开(公告)号：US20240014859A1

公开(公告)日：2024-01-11

申请号：US18061977

申请日：2022-12-05

Applicant: Cisco Technology, Inc.

Inventor： Robert E. BARTON ,  Jerome HENRY ,  Matthew A. SILVERMAN ,  John M. SWARTZ

IPC: H04B7/024 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0617

Abstract: Techniques for beamforming from wireless stations (STAs) are disclosed. These techniques include identifying a plurality of STAs for a beamforming group, for transmission to a wireless access point (AP). The techniques further include receiving, at the AP, first data transmitted from each of the plurality of STAs in the beamforming group to the AP at least partially at the same time, wherein the transmitting the first data from each of the plurality of STAs results in constructive interference between the transmissions from the plurality of STAs to the AP, and wherein the same first data is received from each of the plurality of STAs in the beamforming group.

公开(公告)号：US20220394582A1

公开(公告)日：2022-12-08

申请号：US17339695

申请日：2021-06-04

Applicant: Cisco Technology, Inc.

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

IPC: H04W36/30 ,  H04W48/20 ,  H04L1/18

Abstract: A method includes transmitting a message over a first link using a first radio of a plurality of radios of a multi-link device and in response to determining that the message was not properly received, selecting a second radio of the plurality of radios of the multi-link device. A second link of the second radio provides a higher probability than the first link that the message will be properly received. The method also includes retransmitting the message over the second link using the second radio.

公开(公告)号：US20220385346A1

公开(公告)日：2022-12-01

申请号：US17332670

申请日：2021-05-27

Applicant: Cisco Technology, Inc.

Inventor： Jerome HENRY ,  Robert E. BARTON ,  Matthew A. SILVERMAN ,  Pooya MONAJEMI

IPC: H04B7/06 ,  H04W36/08 ,  H04W52/30

Abstract: Spurious beamforming in high density environments can be reduced via transmitting a first signal from a first Access Point (AP) to a first endpoint associated with the first AP via a first beamforming arrangement; in response to identifying that the first beamforming arrangement is pollutive to a second endpoint associated with a second AP: deprecating the first beamforming arrangement; and transmitting a second signal from the first AP to the first endpoint via a second beamforming arrangement, different from the first beamforming arrangement.

公开(公告)号：US20220312421A1

公开(公告)日：2022-09-29

申请号：US17301176

申请日：2021-03-29

Applicant: Cisco Technology, Inc.

Inventor： Ardalan ALIZADEH ,  Gautam D. BHANAGE ,  Khashayar MIRFAKHRAEI ,  Matthew A. SILVERMAN ,  Sivadeep R. KALAVAKURU

IPC: H04W72/04

Abstract: A method includes instructing, by a WiFi access node, a first device to communicate using an uplink frequency band with a first uplink power. The method also includes instructing, by the WiFi access node, a second device to communicate using the uplink frequency band with a second uplink power different from the first uplink power.

公开(公告)号：US20210235375A1

公开(公告)日：2021-07-29

申请号：US16752219

申请日：2020-01-24

Applicant: Cisco Technology, Inc.

Inventor： Vishal S. DESAI ,  Jerome HENRY ,  Matthew A. SILVERMAN ,  Robert E. BARTON

IPC: H04W48/20 ,  H04W48/16 ,  H04W28/02 ,  H04W24/02

Abstract: Embodiments herein describe techniques for conveying performance parameters to client devices using BSS coloring. IEEE 802.11ax introduced BSS color to help with interference between BSSs operating in the same channel or partially overlapping channels in a frequency band. The BSS colors are typically assigned at random. However, in the embodiments herein, the BSS colors can still be relied to help with co-channel interference as intended by IEEE 802.11ax but also can convey performance parameters to the client devices. The AP can leverage the BSS color to convey (or encode) a performance parameter such as radio frequency (RF) conditions, quality of service (QoS) conditions, or a policy of the network in response to expected (or future) conditions to receiving client devices.

公开(公告)号：US20210223352A1

公开(公告)日：2021-07-22

申请号：US16748704

申请日：2020-01-21

Applicant: Cisco Technology, Inc.

Inventor： Zhigang GAO ,  Matthew A. SILVERMAN ,  Paul J. STAGER ,  Huaiyi WANG

IPC: G01S5/02 ,  G01S5/04

Abstract: Embodiments herein describe performing AoA resolving to identify a plurality of AoAs corresponding to a multipath signal and then using AP voting to identify a location of the client device. AoA resolving enables an AP to identify the different angles at which a multipath signal reaches the AP. That is, due to reflections, a wireless signal transmitted by a single client device may reach the AP using multiple paths that each has their own AoA. The AP can perform AoA resolving to identify the AoAs for the different paths in a multipath signal. In one embodiment, the AoAs for two APs (or a subset of the APs) can be used to identify cross points or intersection points that represent candidate locations of the client device. A voting module can determine whether those cross points corresponds to AoAs identified by the remaining APs.

公开(公告)号：US20210211921A1

公开(公告)日：2021-07-08

申请号：US16737824

申请日：2020-01-08

Applicant: Cisco Technology, Inc.

Inventor： John M. SWARTZ ,  Joshua D. SUHR ,  Matthew A. SILVERMAN ,  Vishal S. DESAI

IPC: H04W28/02 ,  H04L12/26 ,  H04W24/02

Abstract: Techniques for automated network adjustment are provided. A first data rate currently supported by a first access point is determined, and a second data rate is identified to be evaluated. A first sensor device of a plurality of sensor devices is identified, where a signal strength between the first sensor device and the first access point exceeds a predefined threshold. A first packet error rate is determined for communications between the first sensor device and the first access point using the first data rate, and a second packet error rate is determined for communications between the first sensor device and the first access point using the second data rate. Upon determining that the second packet error rate is lower than the first packet error rate, the first access point is automatically reconfigured to use the second data rate.

公开(公告)号：US20180287674A1

公开(公告)日：2018-10-04

申请号：US15477620

申请日：2017-04-03

Applicant: Cisco Technology, Inc.

Inventor： David S. KLOPER ,  Mithat C. DOGAN ,  Matthew A. SILVERMAN ,  Brian D. HART ,  Jiunming HUANG

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0426

Abstract: The present disclosure discloses that a device uses precoding to transmit independent data streams to existing users and additional independent data streams to one or more new users simultaneously. During a first transmission of a first one or more data streams that are precoded using a first precoding matrix, the device determines to transmit a second one or more data streams in a second transmission. Before the first transmission is complete, the device calculates a combined precoding matrix for precoding the first one or more data streams and the second one or more data streams. The device transmits the first one or more data streams in the first transmission and the second one or more data streams in the second transmission simultaneously using the combined precoding matrix.