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1.发明申请公开(公告)号：US20250055745A1
公开(公告)日：2025-02-13
申请号：US18920576
申请日：2024-10-18
Applicant: Cisco Technology, Inc.
Inventor： Ardalan Alizadeh , Sivadeep Reddy Kalavakuru , Matthew Aaron Silverman , Mohsen Jamalabdollahi , Fred Jay Anderson
Abstract: Crest Factor Reduction (CFR) parameters are determined for a dual band Power Amplifier (PA). A first band of the dual band PA is associated with a first Multi-Link Operation (MLO) link and a second band of the dual band PA is associated with a second MLO link. Determining the CFR parameters comprises determining based on a configuration of the first MLO link and the second MLO link. A first portion of the CFR parameters is provided to a first crest factor reduction block. First portion of the CFR parameters comprises a first clipping threshold associated with the first band and first filter coefficients associated with the first band. A second portion of the CFR parameters is provided to a second crest factor reduction block. The second portion of the CFR parameters comprises a second clipping threshold associated with the second band and second filter coefficients associated with the second band.
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公开(公告)号：US12113582B2
公开(公告)日：2024-10-08
申请号：US18364548
申请日：2023-08-03
Applicant: Cisco Technology, Inc.
IPC: H04B15/00 , H04B1/38 , H04B17/318
CPC classification number: H04B15/00 , H04B1/38 , H04B17/318
Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.
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公开(公告)号：US20240023179A1
公开(公告)日：2024-01-18
申请号：US17812739
申请日：2022-07-15
Applicant: Cisco Technology, Inc.
Inventor： Pooya Monajemi , Ardalan Alizadeh , Matthew Aaron Silverman , Brian D. Hart , Vishal Satyendra Desai , Santosh Babaji Kulkarni , Young IL Choi
IPC: H04W76/15
Abstract: An arrangement of three radios maybe provided. The three radios define first and second outer data links and a middle data link. Access to the arrangement of three radios can be biased to the middle data link in one direction upon a data transmission through the first and second outer data links being dominate in an opposite direction. Data transmission with enhanced multi-link single radio (eMLSR) client devices can be prioritized lower than data transmission with simultaneous transmit and receive radio (STR) client devices and non-simultaneous transmit and receive radio (NSTR) client devices. A radio can be configured for data transmission with a client device. The range of the radio is limited when the data traffic through the radio exceeds a determined number of bytes of data in a determined amount of time.
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公开(公告)号：US11832208B2
公开(公告)日：2023-11-28
申请号：US17885987
申请日：2022-08-11
Applicant: Cisco Technology, Inc.
Inventor： Jerome Henry , Robert Edgar Barton , Matthew Aaron Silverman
Abstract: Presented herein are techniques for assigning Ultra-Wideband (UWB) anchors for client ranging. A location server can estimate a coarse location of a mobile device using a localization technique other than a UWB localization technique. The localization technique can involve multiple wireless access points or other radio devices. The location server can define an area around the coarse location to identify a set of candidate anchors for UWB ranging. The set of candidate anchors can be disposed within the area and include at least a subset of the radio devices. The location server can modify the set of candidate anchors to create a modified set of candidate anchors that includes only UWB-enabled devices. The location server can select a primary anchor from the modified set of candidate anchors and send a command to cause a UWB ranging procedure to be initiated between the primary anchor and the mobile device.
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公开(公告)号：US20230379064A1
公开(公告)日：2023-11-23
申请号：US18364548
申请日：2023-08-03
Applicant: Cisco Technology, Inc.
IPC: H04B15/00 , H04B17/318 , H04B1/38
CPC classification number: H04B15/00 , H04B17/318 , H04B1/38
Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230268650A1
公开(公告)日：2023-08-24
申请号：US17678154
申请日：2022-02-23
Applicant: Cisco Technology, Inc.
Inventor： John Matthew Swartz , Nagendra Kumar Nainar , Carlos M. Pignataro , Matthew Aaron Silverman , Ardalan Alizadeh
IPC: H01Q3/46 , H04W12/02 , H04B7/0426
Abstract: A system and methods by which a reconfigurable intelligent surface device is dynamically configured to control the reflection of transmissions made between an access point and one or more client devices so as to protect the transmissions from being properly received by an unauthorized device. These methods may be used to maintain data confidentiality, particular for remote workers. The positions of the access point and client devices are used to configure the reconfigurable intelligent surface device to reflect the transmissions inward and avoid/minimize leakage outside a physical space.
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公开(公告)号：US20230199432A1
公开(公告)日：2023-06-22
申请号：US17555598
申请日：2021-12-20
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Matthew Aaron Silverman , John Matthew Swartz , Ardalan Alizadeh , Jerome Henry
IPC: H04W4/029 , H04B17/318
CPC classification number: H04W4/029 , H04B17/318 , H04W84/12
Abstract: This technology allows for determining the location of client devices via radio scanning for triggered orthogonal frequency-division multiple access (“OFDMA”) uplinks. Access points (“APs”) are configured for OFDMA transmissions. A first AP transmits a trigger frame on particular channel to stations in the wireless network. Neighboring APs scan channels for trigger frames (“TF”). Upon detection of a TF, neighboring APs associate a station identifier with a frequency allocation, or resource unit, in the TF. The neighboring APs receive an OFDMA uplink from the stations, determine a received signal strength indicator (“RSSI”) value for each frequency allocation in the OFDMA uplink, and transmit the RSSI values with the associated station identifier to the first AP. The first AP determines the location of each station by mapping a distance value to the RSSI values.
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8.发明申请公开(公告)号：US20230067588A1
公开(公告)日：2023-03-02
申请号：US17983502
申请日：2022-11-09
Applicant: Cisco Technology, Inc.
Inventor： Matthew Aaron Silverman , Ardalan Alizadeh , Pooya Monajemi , Jerome Henry
IPC: H04W72/04
Abstract: In one embodiment, a method comprises first causing, by a controller device, wireless access points (APs) to allocate first non-interfering wireless channels for a prescribed reliable data service for wireless client devices in a WLAN; second causing the wireless APs to allocate a second shared channel having a bandwidth that is greater than the corresponding bandwidth of any of the first non-interfering wireless channels; allocating for each wireless client device a corresponding location service interval on the second shared channel for transmission of at least a corresponding identifiable wireless data unit for locating the corresponding wireless client device between two or more of the wireless APs; and determining a location of at least one of the wireless client devices based on reception of at least the corresponding wireless data unit between the one wireless client device and the two or more wireless APs during the corresponding location service interval.
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公开(公告)号：US11579236B2
公开(公告)日：2023-02-14
申请号：US16356662
申请日：2019-03-18
Applicant: Cisco Technology, Inc.
Inventor： Xu Zhang , Abhishek Mukherji , Huy Phuong Tran , Vinay S. Raghuram , Matthew Aaron Silverman
Abstract: Systems and methods provide for improving the accuracy of a location system. The location system can capture partial phase vector data from one or more access points (APs). The location system can capture associated data associated with the partial phase vector data across multiple dimensions, such as identity data of the APs and client devices generating the partial phase vector data and frequency band data, location data, a time and date, and other data associated with the partial phase vector data. The location system can determine correlation data across the multiple dimensions using the first partial phase vector data and the associated data. The location system can a cause of the partial phase vector data based on the correlation data. The location system can perform one or more remediation actions based on the cause of the partial phase vector data.
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10.发明申请公开(公告)号：US20230023297A1
公开(公告)日：2023-01-26
申请号：US17409388
申请日：2021-08-23
Applicant: Cisco Technology, Inc.
Inventor： Salvatore Valenza , Samer Salam , Taha Hajar , Nikodin Ristanovic , Arun G. Khanna , Matthew Aaron Silverman , Min Se KIM , Anirban Karmakar
IPC: H04B17/391 , H04B17/336 , H04W24/02 , H04W24/10 , H04W16/20 , H04W64/00 , G06T17/00 , G06T13/20
Abstract: The present technology is directed to visualizing a Wi-Fi access point radio frequency (RF) propagation pattern based on telemetry data over time. The present technology can receive telemetry data for a Wi-Fi network of a building plan in a Wi-Fi visualization system, store the telemetry data with a timestamp, determine a RF propagation pattern in a 3-D space for at least one Wi-Fi access point in the Wi-Fi network, present a user interface including a time slider to facilitate manipulation of a time axis between the first timestamp and the second timestamp, and present a visualization of the RF propagation pattern based on an indication of the time slider.
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