公开(公告)号：US20220150724A1

公开(公告)日：2022-05-12

申请号：US17360016

申请日：2021-06-28

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Brian Hart

IPC: H04W24/02

Abstract: A method is provided in which an AP of a MLD AP device may decide to include all out-of-link BSS parameters updates in a beacon frame (beacon). A flag is included in the beacon frame to indicate that all updates are included in the beacon frame and thus the client device that receives the beacon frame should not send probe request frames (probe requests) to obtain these updates. Thus, a non-AP MLD that receives a beacon frame with the above indication and that has all critical BSS parameters corresponding to the Change Sequence Number (CSN) that preceded the updates indicated by the AP, should not send probe requests to obtain the updated parameters. The number of bits to assign to the complete BSS Update Report Indication flag may vary depending on the number of updates to be reported.

公开(公告)号：US20220086808A1

公开(公告)日：2022-03-17

申请号：US17537725

申请日：2021-11-30

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Vishal Satyendra Desai ,  Benjamin Jacob Cizdziel ,  Santosh Babaji Kulkarni ,  Young Il Choi

IPC: H04W72/04 ,  H04B17/318 ,  H04W48/16

Abstract: In dense Wireless Local Area Network (WLAN) deployments, Access Points (APs) in other Extended Service Sets (ESSs) can be hidden (a first AP does not receive signals from a third AP). However, these APs in other ESSs can still interfere with communications between the third AP and the devices communicating with the first AP. To improve service to that device in that situation, the first AP needs information about the third AP in the first AP's decision making processes. In these situations, a second AP, in contact with the third AP, can share information about the third AP with the first AP so that the first AP can avoid colliding with the third AP.

公开(公告)号：US11197242B2

公开(公告)日：2021-12-07

申请号：US16246879

申请日：2019-01-14

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Gautam Bhanage ,  David Kloper ,  Young Il Choi ,  Vishal Satyendra Desai ,  Santosh Bahaji Kulkarni

IPC: H04W52/02 ,  H04W72/12 ,  H04W92/20 ,  H04W84/12

Abstract: In one embodiment, a first wireless access point (AP) of a first basic service set (BSS) receives, from a second wireless AP of a second BSS, data indicative of an 802.11-based target wake time (TWT) schedule of a client of the second BSS. The first wireless AP identifies, from the receive data, a scheduled communication time of the client of the second BSS in the TWT schedule. The first wireless AP generates an 802.11-based TWT schedule for a client of the first BSS that avoids the scheduled communication time of the client of the second BSS. The first wireless AP sends the generated 802.11-based TWT schedule to the client of the first BSS, wherein the sent TWT schedule causes the client of the first BSS to wake from sleep at a scheduled wake time.

公开(公告)号：US11153761B2

公开(公告)日：2021-10-19

申请号：US16736620

申请日：2020-01-07

Applicant: Cisco Technology, Inc.

Inventor： Santosh Babaji Kulkarni ,  Vishal Satyendra Desai ,  Pooya Monajemi ,  Young Il Choi

IPC: H04W16/14 ,  H04W72/04 ,  H04B17/318 ,  H04W48/10 ,  H04W72/08

Abstract: Spectrum management may be provided. A first Radio Frequency (RF) event metric may be received from a first service end point. The first RF event metric may comprise a time a first event occurred. A second RF event metric may be received from a second service end point. The second RF event metric may comprise a time a second event occurred. Then it may be determined that the time the first event occurred and the time the second event occurred are substantially congruent. Next, in response to determining that the time the first event occurred and the time the second event occurred are substantially congruent, the first service end point and the second service end point may be grouped in a first RF group thereby allowing frequency re-use across similar RF groups. Then different channels may be assigned to the first service end point and the second service end point.

公开(公告)号：US10972943B2

公开(公告)日：2021-04-06

申请号：US16296523

申请日：2019-03-08

Applicant: Cisco Technology, Inc.

Inventor： Santosh Babaji Kulkarni ,  Vishal Satyendra Desai ,  Pooya Monajemi ,  Young Il Choi

IPC: H04W28/26 ,  H04W28/18

Abstract: In one embodiment, a supervisory device for a wireless network classifies each client of a set of access points in the wireless network as either an Internet of Things (IoT) device or a non-IoT device. The supervisory device selects, for each of the access points in the set, a channel width based on the classifications of its clients. The supervisory device assigns, for each of the access points in the set, one or more wireless channels for use by that access point, based on the selected channel width for that access point. The supervisory device instructs the access points in the set to use their assigned channels to communicate with their clients.

公开(公告)号：US10887822B2

公开(公告)日：2021-01-05

申请号：US16136061

申请日：2018-09-19

Applicant: Cisco Technology, Inc.

Inventor： Jerome Henry ,  Vishal S. Desai ,  Pooya Monajemi ,  James F. Florwick

IPC: H04W40/32 ,  H04W72/12 ,  H04W16/18 ,  H04B17/318 ,  H04W24/02

Abstract: Techniques for assigning APs to wireless network controllers are described. One or more RF constellations for a plurality of APs in a wireless network are generated. The RF constellations are organized based on estimated RF distances among the plurality of APs. The plurality of APs are clustered into a plurality of groups of one or more APs, based on the RF constellations and the estimated RF distances. Each group, of the plurality of groups, is assigned to a wireless network controller.

公开(公告)号：US20200296739A1

公开(公告)日：2020-09-17

申请号：US16299487

申请日：2019-03-12

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Gautam Dilip Bhanage ,  Benjamin Jacob Cizdziel ,  Khashayar Mirfakhraei

IPC: H04W72/12 ,  H04W24/02 ,  H04W24/10

Abstract: In one embodiment, an apparatus comprises an enhanced distributed channel access (EDCA) selection agent configured to receive a plurality of measurements pertaining to a plurality of clients, compute a set of optimal EDCA parameters using the plurality of measurements, and provide an EDCA configuration for the plurality of clients, and a client behavior predictor configured to receive the plurality of measurements pertaining to the plurality of clients, to receive the set of optimal EDCA parameters, and to compute a plurality of client mode predictions. Client mode predictions may be evaluated and potentially used for additional EDCA parameter optimization by the EDCA selection agent.

公开(公告)号：US10736143B2

公开(公告)日：2020-08-04

申请号：US16133580

申请日：2018-09-17

Applicant: Cisco Technology, Inc.

Inventor： Gautam Dilip Bhanage ,  Pooya Monajemi ,  Brian Donald Hart

IPC: H04W74/08 ,  H04B17/318 ,  H04W16/18 ,  H04W84/12

Abstract: An access point determines the highest signal strength at which it can detect transmissions from other access points or overlapping-basic-service-set (OBSS) client devices associated with the other access points. The access point sets an OBSS packet-detect threshold to the lesser of a minimum cell-size threshold or the highest signal strength and sets a receiver start-of-packet (RxSOP) threshold to the OBSS packet-detect threshold minus an offset. The access point avoids decoding incoming packets when respective signal strengths of the incoming packets do not satisfy the RxSOP threshold. The access point also avoids initiating transmission when incoming packets from the other access points or from the OBSS client devices have signal strengths that satisfy the OBSS packet-detect threshold.

公开(公告)号：US20200245260A1

公开(公告)日：2020-07-30

申请号：US16255955

申请日：2019-01-24

Applicant: Cisco Technology, Inc.

Inventor： Vishal Satyendra Desai ,  Pooya Monajemi ,  Santosh Babaji Kulkarni ,  Young Il Choi

IPC: H04W52/24 ,  H04W36/00 ,  H04W52/34

Abstract: Presented herein are techniques for using mobile client density to compensate for variations in path loss between neighboring access points. In one example, a device (e.g., wireless controller) determines one or more mobile client density variation trends in a wireless network location and determines one or more neighbor message power variation trends between at least first and second access points within the wireless network location. The device generates one or more correlation bias factors using the mobile client density variation trends and the neighbor message power variation trends. The device determines a path loss between at least the first and second access points based on the correlation bias factor and data associated with neighbor messages sent between the first and second access points.

公开(公告)号：US10541778B1

公开(公告)日：2020-01-21

申请号：US16118667

申请日：2018-08-31

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Brian Donald Hart ,  Pooya Monajemi ,  Vishal Satyendra Desai

IPC: H04W72/04 ,  H04L1/00 ,  H04L12/803 ,  H04W16/14 ,  H04L12/851 ,  G01S7/02

Abstract: An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Each subchannel corresponds to a distinct frequency chunk with a respective plurality of subcarriers. Radar is detected on a first subchannel. In response, a selection is made between (i) redefining the channel and (ii) puncturing the first subchannel while continuing to use all other subchannels. Puncturing the first subchannel includes muting subcarriers on the first subchannel. Redefining the channel includes removing multiple subchannels from the channel. The selection is based at least in part on one or more factors that provide indications as to whether puncturing would be efficient and/or effective. The access point continues to communicate wirelessly with the one or more client devices in accordance with the selection.