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.

公开(公告)号：US12120153B2

公开(公告)日：2024-10-15

申请号：US18361779

申请日：2023-07-28

Applicant: Cisco Technology, Inc.

Inventor： Malcolm M. Smith ,  Jerome Henry ,  Pooya Monajemi ,  Brian D. Hart ,  David S. Kloper

IPC: H04L9/40 ,  H04W12/08

CPC classification number: H04L63/20 ,  H04W12/08

Abstract: A device includes a memory and a hardware processor communicatively coupled to the memory. The hardware processor determines that a computing device communicatively coupled to an access point performed an action with respect to the access point and in response to determining that the action causes a deviation from a multi-user uplink policy of the access point, transmits a disciplinary message to the computing device.

公开(公告)号：US11838862B2

公开(公告)日：2023-12-05

申请号：US17522774

申请日：2021-11-09

Applicant: Cisco Technology, Inc.

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

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

CPC classification number: H04W52/0216 ,  H04W72/20 ,  H04W84/12 ,  H04W92/20

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：US11799912B2

公开(公告)日：2023-10-24

申请号：US17301150

申请日：2021-03-26

Applicant: Cisco Technology, Inc.

Inventor： Malcolm M. Smith ,  Jerome Henry ,  Pooya Monajemi ,  Brian D. Hart ,  David S. Kloper

IPC: H04L9/40 ,  H04W12/08

CPC classification number: H04L63/20 ,  H04W12/08

Abstract: A device includes a memory and a hardware processor communicatively coupled to the memory. The hardware processor determines that a computing device communicatively coupled to an access point performed an action with respect to the access point and in response to determining that the action causes a deviation from a multi-user uplink policy of the access point, transmits a disciplinary message to the computing device.

公开(公告)号：US11726173B2

公开(公告)日：2023-08-15

申请号：US16880797

申请日：2020-05-21

Applicant: Cisco Technology, Inc.

Inventor： Akram I. Sheriff ,  Jerome Henry ,  Robert E. Barton ,  Pooya Monajemi

IPC: G01S7/36 ,  G01S13/76 ,  H04W12/00

CPC classification number: G01S7/36 ,  G01S13/762 ,  G01S13/765 ,  H04W12/00

Abstract: Embodiments for securing fine timing measurement (FTM) communications are described. FTM communications include FTM frames sent and received from an initiating station (ISTA) and a responding station (RSTA). The RSTA records a plurality of parameters associated with the FTM frames and uses the plurality of parameters to learn and identify a device profile for the ISTA. The device profile is used to determine a behavior filter for the FTM from the ISTA and the RSTA filters FTM traffic according to the behavior filter to prevent malicious attacks in the FTM communications.

公开(公告)号：US11523283B2

公开(公告)日：2022-12-06

申请号：US16985807

申请日：2020-08-05

Applicant: Cisco Technology, Inc.

Inventor： Jerome Henry ,  Andrew Frederick Myles ,  Pooya Monajemi

IPC: H04W12/00 ,  H04W76/11 ,  H04W12/50 ,  H04W56/00 ,  G01S19/21

Abstract: Presented herein are techniques for GPS attack prevention in association with wireless communication devices. In at least one embodiment, a method may include receiving, at a mobile device from a first access point (AP), first location information and one or more of a first token or first neighbor information relating to neighboring APs. The mobile device may receive from a second AP, second location information and one or more of a second token or second neighbor information relating to neighboring APs. The first token may be compared to the second token to determine whether the first and second tokens are consistent, and/or the first neighbor information may be compared to the second neighbor information to determine whether the first and second neighbor information are consistent. It may be determined whether the first location information provided by the first AP and the second location information provided by the second AP are valid based on the comparison(s).

公开(公告)号：US11457470B2

公开(公告)日：2022-09-27

申请号：US17036724

申请日：2020-09-29

Applicant: Cisco Technology, Inc.

Inventor： Guru Prasanna Gopalakrishnan ,  David S. Kloper ,  Pooya Monajemi

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/12 ,  H04W28/02 ,  H04L5/00

Abstract: A method for scheduling a random access trigger frame (RA TF) in a wireless LAN includes determining whether a scheduled access (SA) TF is scheduled during a beacon interval (BI) beginning with a next beacon; determining whether one of, a first weighted average of a sum of (i) a number of clients whose respective buffer status reports (BSRs) have been successfully received (NSUCC) and (ii) a number of clients whose respective BSRs collided with one another (NCOL) is greater than a first threshold, or a second weighted average of an active number of UL OFDMA enabled HE users sending SU uplink traffic (NSU) is greater than the first threshold; when either weighted average is greater than the first threshold, allocating a predetermined number of RA RUs along with at least one SA RU in a buffer status report poll (BSRP) TF and scheduling the BSRP TF for transmission.

公开(公告)号：US11234173B2

公开(公告)日：2022-01-25

申请号：US16407897

申请日：2019-05-09

Applicant: Cisco Technology, Inc.

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

IPC: H04W36/06 ,  H04W52/02

Abstract: In one embodiment, a device assigns a first radio of an access point in a wireless network to a client serving role and a second radio of the access point to a channel monitoring role. The device associates a wireless client with the first radio. The device determines that the wireless client is a low bandwidth client. The device switches the wireless client from the first radio to the second radio of the access point assigned to the channel monitoring role.

公开(公告)号：US11172484B2

公开(公告)日：2021-11-09

申请号：US16504972

申请日：2019-07-08

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Brian D. Hart ,  Pooya Monajemi ,  David Kloper

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

Abstract: Bypassing radar in wide Dynamic Frequency Selection (DFS) channels utilizing puncturing may be provided. A first client device may be classified as eligible for puncturing and a second client device may be classified as not eligible for puncturing. Next, it may be determined that a subchannel in a bandwidth range should not be used. Then, in response to determining that the subchannel in the bandwidth range should not be used, the first client device may be steered to a first subset of the bandwidth range and the second client device may be steered to a second subset of the bandwidth range. The second subset of the bandwidth range may be smaller than the first subset of the bandwidth range.

公开(公告)号：US11153760B2

公开(公告)日：2021-10-19

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 ,  H04B17/336 ,  H04W72/08 ,  H04W80/08 ,  H04W72/12 ,  H04W16/14 ,  H04B7/0452 ,  H04W84/12

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.