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公开(公告)号：US20210092021A1
公开(公告)日：2021-03-25
申请号：US16576387
申请日：2019-09-19
Applicant: Cisco Technology Inc.
Inventor： Amine Choukir , Roberto Muccifora , Antonio Trifilo , Domenico Ficara , Vincent Cuissard , Salvatore Valenza
Abstract: A method is provided in a wireless local area network controller in a wireless communication network. The wireless communication network includes one or more virtual networks identified with virtual network IDs, VNIDs. A request is received from a wireless client to onboard onto the network and the wireless client is mapped to an onboarding VNID. The onboarding VNID is associated with an onboarding virtual network that does not require an authentication of the wireless client. An Internet Protocol address assignment is forwarded to the wireless client. The wireless client is remapped from the onboarding VNID to the destination VNID after authenticating the wireless client. The wireless client maintains the assigned IP address after moving from the onboarding VNID to the destination VNID. Access to the wireless client on a virtual network identified by the destination VNID is provided via the assigned IP address.
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公开(公告)号：US12267120B2
公开(公告)日：2025-04-01
申请号：US18473688
申请日：2023-09-25
Applicant: Cisco Technology, Inc.
Inventor： Salvatore Valenza , Samer Salam , Taha Hajar , Nikodin Ristanovic , Arun G. Khanna , Matthew Aaron Silverman , James Florwick
IPC: H04B17/391 , G06T15/06 , G06T15/08 , H04W28/08 , H04W28/086 , H04W36/00 , H04W72/29 , H04W84/12
Abstract: The present technology is directed to visualizing a Wi-Fi access point (AP) signal propagation pattern through multiple floors. The present technology can execute a Wi-Fi signal propagation model corresponding to a first AP on a first floor of a building plan and a second AP on a second floor of the building plan. The Wi-Fi signal propagation model calculates a Wi-Fi signal propagation pattern for a plurality of APs including the first AP and the second AP. The present technology can further present a visualization of the Wi-Fi signal propagation pattern for the plurality of APs, wherein the Wi-Fi signal propagation pattern for the first AP on the first floor of the building plan projects onto the second floor of the building plan.
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公开(公告)号：US12170546B2
公开(公告)日：2024-12-17
申请号：US18354478
申请日：2023-07-18
Applicant: Cisco Technology, Inc.
Inventor： Stefano Ferrari , Salvatore Valenza , Samer Salam , Taha Hajar , Nikodin Ristanovic , Arun G. Khanna
IPC: H04B17/318 , G01S13/89 , H04B17/391
Abstract: The present disclosure is directed to 3-D visualization of wireless signal propagation representing wireless signal strength and interference in 3-D space. The present technology can identify a plurality of access points (APs) in the 3-D space, determine a wireless signal strength for each of the plurality of APs, and determine an interference with the wireless signal strength of each of the plurality of APs, wherein the interference is caused by a neighboring AP of the plurality of APs in the 3-D space. The present technology can further present a 3-D visualization of a wireless signal propagation pattern representing the wireless signal strength from each of the plurality of APs in the 3-D space and the interference from the neighboring AP.
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公开(公告)号：US20240349116A1
公开(公告)日：2024-10-17
申请号：US18133348
申请日：2023-04-11
Applicant: Cisco Technology, Inc.
Inventor： Alessandro Erta , Loris Gazzarrini , Salvatore Valenza , Pascal Thubert , Luca Bisti , Domenico Ficara
CPC classification number: H04W28/06 , H04W4/06 , H04W40/023 , H04W60/00 , H04L12/189
Abstract: In one embodiment, an intermediate device in a backhaul mesh for a wireless network receives a registration from an access point of the wireless network in communication with a mobile system. The intermediate device receives a packet that is multicast by a gateway into the backhaul mesh and destined for the mobile system. The intermediate device makes, based on the registration, a determination that the packet should be sent to the access point. The intermediate device sends the packet to the access point for transmittal to the mobile system.
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15.发明公开公开(公告)号：US20240345200A1
公开(公告)日：2024-10-17
申请号：US18300247
申请日：2023-04-13
Applicant: Cisco Technology, Inc.
Inventor： Samer M. Salam , Matt Silverman , Taha Hajar , Salvatore Valenza , Evgeny Yankevich
IPC: G01S5/02 , H04B17/327 , H04W16/18
CPC classification number: G01S5/02528 , H04B17/327 , H04W16/18
Abstract: A method includes determining a 2D DEM for a physical environment, determining a viewshed for an access point in the physical environment using the DEM, and identifying, at the end terminal, at least one obstacle that is visible from the access point. For each point in space within the physical environment that is on a same side of the at least one obstacle as the access point: a respective first RSSI is determined, the respective first RSSI being associated with a direct LOS ray from the access point to a point in the space. A respective second RSSI for each of the at least one obstacle is determined to yield at least one second RSSI. A respective RF power based on the respective first RSSI and the at least one second RSSI is also determined, the respective RF power being used for generating a 3D heatmap for the physical environment.
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Patent Agency Ranking
公开(公告)号：US20230361891A1
公开(公告)日：2023-11-09
申请号：US18354478
申请日：2023-07-18
Applicant: Cisco Technology, Inc.
Inventor： Stefano Ferrari , Salvatore Valenza , Samer Salam , Taha Hajar , Nikodin Ristanovic , Arun G. Khanna
IPC: H04B17/318 , G01S13/89 , H04B17/391
CPC classification number: H04B17/318 , G01S13/89 , H04B17/391
Abstract: The present disclosure is directed to 3-D visualization of wireless signal propagation representing wireless signal strength and interference in 3-D space. The present technology can identify a plurality of access points (APs) in the 3-D space, determine a wireless signal strength for each of the plurality of APs, and determine an interference with the wireless signal strength of each of the plurality of APs, wherein the interference is caused by a neighboring AP of the plurality of APs in the 3-D space. The present technology can further present a 3-D visualization of a wireless signal propagation pattern representing the wireless signal strength from each of the plurality of APs in the 3-D space and the interference from the neighboring AP.
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公开(公告)号：US11410399B1
公开(公告)日：2022-08-09
申请号：US17390692
申请日：2021-07-30
Applicant: Cisco Technology, Inc.
Inventor： Salvatore Valenza , Taha Hajar , Samer Salam , Mathieu Bastien Monney
Abstract: The present technology includes calculating the 3-D RF propagation pattern in a space for at least one Wi-Fi access point and displaying a visualization of the RF propagation pattern in augmented reality (AR). The augmented reality view of the space can be created by capturing at least one image of the space and displaying at least one image of the space on a display with the visualization of the Wi-Fi access point RF propagation pattern on the display overlaid at least one image of the space. The disclosed technology further can calculate the RF propagation properties and render a visualization of the RF propagation patterns in a 3D space by utilizing hardware on a user device. The AR display is useful in visualizing, in-person aspects of a Wi-Fi network and coverage, and can be used in troubleshooting, maintenance, and simulations of equipment variations.
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公开(公告)号：US20220183111A1
公开(公告)日：2022-06-09
申请号：US17111625
申请日：2020-12-04
Applicant: Cisco Technology, Inc.
Inventor： Vincent Cuissard , Domenico Ficara , Alessandro Erta , Luca Bisti , Kasi Nalamalapu , Sudhir Kumar Jain , Salvatore Valenza , Arun Khanna , Stefano Ferrari , Loris Gazzarrini
Abstract: In one embodiment, a gateway to a Layer-3 network forms a first Layer-2 tunnel between the gateway and a first wireless access point (AP) that communicates wirelessly with a first mobile node of a mobile system (MS) via a first wireless connection. The gateway generates a mapping that associates an onboard device of the MS with the first AP and an identifier for the MS, based on traffic conveyed via the first Layer-2 tunnel and associated with the onboard device, the traffic comprising a header that indicates the identifier for the MS. The gateway receives, from a second AP, an indication that the MS is roaming from the first wireless connection to a second wireless connection, the indication including the identifier for the MS. The gateway updates the mapping to associate the onboard device of the MS with a second AP, based on the indication that the MS is roaming.
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公开(公告)号：US09705700B2
公开(公告)日：2017-07-11
申请号：US14519714
申请日：2014-10-21
Applicant: Cisco Technology, Inc.
Inventor： Domenico Ficara , Davide Cuda , Leo Caldarola , Salvatore Valenza , Roberto Muccifora
IPC: H04L12/28 , H04L12/417 , H04L12/875
CPC classification number: H04L12/417 , H04L47/56
Abstract: Embodiments provide techniques for transmitting data packets across a deterministic Ethernet network. Embodiments receive, at a first device in the deterministic Ethernet network, a deterministic binary schedule specifying timing information for transmitting data fragments relating to a plurality of data flows. Data packets to transmit to a destination device within the deterministic Ethernet network are received at the first device. Embodiments include fragmenting each of the data packets into two or more fragments and encoding at least one of the two or more fragments for each of the data packets with a respective sparse graph code. The encoded fragments are transmitted to the destination device, across multiple paths through the deterministic Ethernet network, according to timing information specified in the deterministic binary schedule.
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公开(公告)号：US09407735B2
公开(公告)日：2016-08-02
申请号：US14486556
申请日：2014-09-15
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Salvatore Valenza , Domenico Ficara , Roberto Muccifora , Leo Caldarola
CPC classification number: H04L69/22 , H04L43/026
Abstract: In one embodiment, a method includes identifying at a network device, a number of items for matching at a hash table, the number of items exceeding matching available with ternary content addressable memory (TCAM) at the network device, defining at the network device, an optimal cyclic redundancy check (CRC) polynomial based on the number of items for matching at the hash table, and generating at the network device, an optimal hash function based on the optimal CRC polynomial to extend packet classification capability at the network device. An apparatus is also disclosed herein.
Abstract translation: 在一个实施例中，一种方法包括在网络设备处识别用于在散列表处进行匹配的项目的数量，在网络设备处定义的与网络设备上的三进制内容可寻址存储器（TCAM）可用的项目数量相匹配的数量， 基于用于在散列表处进行匹配的项目的数量的最佳循环冗余校验（CRC）多项式，以及在网络设备处生成基于最佳CRC多项式的最优哈希函数，以在网络设备上扩展分组分类能力。 本文还公开了一种装置。
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