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公开(公告)号：US20240334512A1
公开(公告)日：2024-10-03
申请号：US18193368
申请日：2023-03-30
Applicant: Cisco Technology, Inc.
Inventor： Sivadeep Reddy KALAVAKURU , Fred Jay ANDERSON , Robert BADEA , Ardalan ALIZADEH
IPC: H04W76/15 , H04L1/00 , H04W72/0453
CPC classification number: H04W76/15 , H04L1/0013 , H04W72/0453
Abstract: Alleviating spectral regrowth and Receive (RX) blocking may be provided. To alleviate spectral regrowth and RX blocking one or more targeted intermodulation products may be identified for a Transmit (TX) data packet of a radio of a Multi-Link Device (MLD). A puncture resolution and a puncture position on the Bandwidth (BW) of the TX data packet may then be determined. A puncture of the TX data packet may then be caused, wherein the puncture has the puncture resolution and the puncture position.
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公开(公告)号：US20240334370A1
公开(公告)日：2024-10-03
申请号：US18194196
申请日：2023-03-31
Applicant: Cisco Technology, Inc.
Inventor： Sivadeep Reddy KALAVAKURU , Laurent Alexandre PIERRUGUES , Jerome HENRY , Behrouz SHAYESTEH , Ardalan ALIZADEH
CPC classification number: H04W64/00 , G01S13/765 , H04W56/006
Abstract: Fine Time Measurement (FTM) improvement for AP self-positioning may be provided. First, an Access Point (AP) graph may be generated. An AP pair may be determined for FTM AP self-positioning based on the AP graph, A plurality of Transmit (TX) signals may be sent to a paired AP of the AP pair using two more TX antennas, wherein the plurality of TX signals include FTM action frames and have a first constant Cyclic Shift Delay (CSD). A plurality of Receive (RX) signals may be received from the paired AP using two or more RX antennas, wherein the plurality of RX signals include FTM action frames and have a second constant CSD, Outlier RX signals having a low Received Signal Strength Indicator (RSSI) may be removed from the plurality of RX signals. An AP position may be determined based on the plurality of RX signals.
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Patent Agency Ranking
公开(公告)号：US20240049133A1
公开(公告)日：2024-02-08
申请号：US17816877
申请日：2022-08-02
Applicant: Cisco Technology, Inc.
CPC classification number: H04W52/0216 , H04W52/28 , H04W74/0816 , H04W72/0446
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.
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公开(公告)号：US20250126557A1
公开(公告)日：2025-04-17
申请号：US19002336
申请日：2024-12-26
Applicant: Cisco Technology, Inc.
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.
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5.发明公开公开(公告)号：US20240334341A1
公开(公告)日：2024-10-03
申请号：US18192489
申请日：2023-03-29
Applicant: Cisco Technology, Inc.
Inventor： Sivadeep Reddy KALAVAKURU , Fred Jay ANDERSON , Saber SOLTANI , Xiangxiang FANG
IPC: H04W52/14 , H04B17/309 , H04B17/318 , H04W64/00
CPC classification number: H04W52/143 , H04B17/318 , H04B17/347 , H04W64/00 , H04B7/0452
Abstract: Improving transmitter Effective Isotropic Radiated Power (EIRP) may be provided. Improving EIRP may include sending a trigger frame to a client and receiving an uplink transmission from the client in response. A client Transmission (TX) power and a Received Signal Strength Indication (RSSI) associated with the client may be determined using the uplink transmission. Next, a client location may be determined. A pathloss associated with the client may be determined using the client location and the uplink transmission. A directional gain may then be determined using the client TX power, the pathloss, and the RSSI. An array gain is determined based on the directional gain. An Access Point (AP) TX power is adjusted based on the array gain.
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公开(公告)号：US20240322878A1
公开(公告)日：2024-09-26
申请号：US18190078
申请日：2023-03-25
Applicant: Cisco Technology, Inc.
Inventor： Sivadeep Reddy KALAVAKURU , Jerome HENRY , Laurent Alexandre PIERRUGUES , Ardalan ALIZADEH , Behrouz SHAYESTEH
IPC: H04B7/06 , H04B17/318
CPC classification number: H04B7/0626 , H04B17/318
Abstract: Fine Time Measurement (FTM) improvement and, specifically, trigger based FTM improvements via efficiently grouping initiators may be provided. A plurality of probe requests transmitted by a plurality of initiators is received. For each probe request, a Received Signal Strength Indication (RSSI) and Channel State Information (CSI) is determined, and a distance between an initiator and an associated responder associated with the probe request is determined based on the RSSI and the CSI. Line of Sight (LOS) or Non Line of Sight (NLOS) relationships between the plurality of initiators and one or more responders is determined based on the CSI. One or more groups of initiators is determined from the plurality of initiators based on the LOS or NLOS relationships and the distances determined for each probe request, wherein the responders and the initiators perform FTM based on the one or more groups of initiators.
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公开(公告)号：US20240056226A1
公开(公告)日：2024-02-15
申请号：US17818419
申请日：2022-08-09
Applicant: Cisco Technology, Inc.
Inventor： Ardalan ALIZADEH , Sivadeep Reddy KALAVAKURU , Matthew Aaron SILVERMAN , John Matthew SWARTZ
CPC classification number: H04L1/1812 , H04L1/08 , H04W16/28
Abstract: A network of access points (AP) in a high-density environment may be provided. A number of packet transmission retries for one or more of the AP may be determined by setting a number, m, of retries for transmitting a data packet, where m is the upper limit of the number of retries. Data packets are then transmitted m times. Upon transmitting the data packet m times, a success probability SP(u,m) for transmission of the data packet, where u is the number of users, may be calculated. The transmission of the data packet may be repeated m−x times where x is an integer. Upon calculating the success probability for m−x times, a success probability SP(u,m−x) for transmission of the data packet may be calculated. If SP (u,m−x) is larger than SP(u,m) then x may be decreased by one and actions (b)-(f) may be repeated. If SP (u,m−x) is not larger than SP(u,m) then m−x may be set as the maximum number of retries for the data packet.
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