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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
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.
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公开(公告)号：US20240298178A1
公开(公告)日：2024-09-05
申请号：US18495441
申请日：2023-10-26
Applicant: Cisco Technology, Inc.
Inventor： Jerome Henry , Brian D. Hart , Peiman Amini , Stephen M. Orr , Sudhir K. Jain
IPC: H04W12/069 , H04L9/32 , H04W12/63
CPC classification number: H04W12/069 , H04L9/3242 , H04W12/63
Abstract: Fine Time Measurement (FTM) Location Configuration Information (LCI) protection and, specifically, FTM LCI protection with authentication and selective client enablement may be provided. To perform FTM LCI protection, a controller may first obtain a key-pair including a public key and a private key from a Certificate Authority (CA). The controller my determine a venue location where an Access Point (AP) is located. The controller may send a Certificate Signing Request (CSR) with the venue location to the CA. In response to sending the CSR, the controller may receive a public key certificate from the CA, wherein the public key certificate includes the venue location. The AP may receive a request for Location Configuration Information (LCI) from a Station (STA), wherein the LCI includes an AP location. The AP creates a hash of LCI of the AP using the private key and sends the LCI and the hash to the STA.
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公开(公告)号：US20240284437A1
公开(公告)日：2024-08-22
申请号：US18172019
申请日：2023-02-21
Applicant: Cisco Technology, Inc.
Inventor： Malcolm Muir Smith , Brian D. Hart
IPC: H04W72/121 , H04W40/24
CPC classification number: H04W72/121 , H04W40/246
Abstract: Scaling by using tiered multi-level scheduling may be provided. Connectivity information associated with a plurality of Access Points (APs) may be received by a computing device. A plurality of Connectivity Groups (CGs) may be determined from the plurality of APs based on the connectivity information. Transmissions may be scheduled for the plurality of CGs such that when any of the plurality of CGs sends a transmission, the transmission is substantially unaffected by interference from any others of the plurality of CGs.
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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
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.
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公开(公告)号：US11374704B2
公开(公告)日：2022-06-28
申请号：US16869311
申请日：2020-05-07
Applicant: Cisco Technology, Inc.
Inventor： Huaiyi Wang , Brian D. Hart , Matthew A. Silverman , Zhigang Gao
Abstract: Aspects described herein include a method comprising predicting, based on one or more transmission characteristics, error values for a sequence of bit positions used for modulating data within a packet. The method further comprises generating a bitmap that maps one or more payload bits and one or more padding bits of the packet to respective bit positions of the sequence. The one or more padding bits are preferentially mapped to respective bit positions having relatively greater error values. The method further comprises modulating the sequence according to the bitmap.
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Patent Agency Ranking
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
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.
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57.发明授权公开(公告)号：US10863465B2
公开(公告)日：2020-12-08
申请号：US16388571
申请日：2019-04-18
Applicant: Cisco Technology, Inc.
Inventor： Paul J. Stager , David S. Kloper , Brian D. Hart , Matthew A. Silverman
IPC: H04W56/00
Abstract: Techniques are disclosed to synchronize wireless signal transmission by endpoints controlled by a central controller. For example, an example method of wireless communication includes receiving, at a first device, over a wired medium between the first device and a second device, a plurality of packets from the second device. Each of the plurality of packets comprises data representative of a portion of a signal corresponding to a wireless medium. The method further includes receiving, at the first device, from the second device over the wired medium a synchronization signal based on a common master clock at the second device. The method further includes synchronizing, at the first device, a local clock of the first device to the common master clock based on the synchronization signal. The method further includes reconstructing the signal corresponding to the wireless medium based on the plurality of packets and the synchronized local clock.
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公开(公告)号：US10568134B2
公开(公告)日：2020-02-18
申请号：US16037480
申请日：2018-07-17
Applicant: Cisco Technology, Inc.
Inventor： Brian D. Hart , David Kloper , Pooya Monajemi , Matthew A. Silverman
Abstract: A third device stores a receive signal strength of a received response data unit transmitted by a second device after receiving a first data unit transmitted by a first device. The third device obtains a clear channel access parameter included in a header of a second data unit transmitted by the first device to the second device and detects transmission exchanges in each of a plurality of service sets to use as samples of overlapping service set activity. The third device determines a minimum transmit power to be used by the third device to send a transmission to the fourth device based on transmission exchanges between devices in a particular service set. The third device determines whether to send a transmission to the fourth device based on the clear channel access parameter and minimum transmit power.
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公开(公告)号：US20200029361A1
公开(公告)日：2020-01-23
申请号：US16037287
申请日：2018-07-17
Applicant: Cisco Technology, Inc.
Inventor： Vishal S. Desai , Brian D. Hart , David Kloper , Andrew Myles
Abstract: In a wireless local area network (WLAN) that includes one or more wireless access points capable of serving one or more wireless clients, presence of one or more instances of interference from a particular type of interferer is detected on at least one channel in an unlicensed frequency band. In response to detecting the interference, a radio resource management process is biased to continue operation of at least one of the one or more access points, or individual radios of a multi-radio access point, on the channel to make at least some use of the channel for one or more wireless clients.
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公开(公告)号：US10104687B2
公开(公告)日：2018-10-16
申请号：US15428370
申请日：2017-02-09
Applicant: Cisco Technology, Inc.
Inventor： Brian D. Hart
IPC: H04W74/04 , H04B17/318 , H04W84/12
Abstract: A pair of Clear Channel Assessment (CCA) rules are presented that protect an initiator's transmission at the responder, and the responder's transmission at the initiator, using additional fields transmitted in a preamble (header) of a Physical Layer Convergence Procedure (PLCP) Protocol Data Unit (PPDU) or in a Media Access Control (MAC) header, if unencrypted and robustly modulated. These techniques enable more parallel/simultaneous transmissions between devices that might otherwise interfere with each other, subject to ensuring an adequate Signal-to-Interface and-Noise Ratio (SINR) for the initiator's transmission at the responder and ensuring an adequate SINR for the responder's transmission at the initiator.
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