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公开(公告)号：US20210211885A1
公开(公告)日：2021-07-08
申请号：US16736620
申请日：2020-01-07
Applicant: Cisco Technology, Inc.
Inventor： Santosh Babaji Kulkarni , Vishal Satyendra Desai , Pooya Monajemi , Young Il Choi
IPC: H04W16/14 , H04W72/04 , H04W72/08 , H04W48/10 , H04B17/318
Abstract: Spectrum management for coexistence of heterogeneous wireless technologies may be provided. A first Radio Frequency (RF) event metric may be received from a first service end point. The first RF event metric may comprise a time a first event occurred. A second RF event metric may be received from a second service end point. The second RF event metric may comprise a time a second event occurred. Then it may be determined that the time the first event occurred and the time the second event occurred are substantially congruent. Next, in response to determining that the time the first event occurred and the time the second event occurred are substantially congruent, the first service end point and the second service end point may be grouped in a first RF group thereby allowing frequency re-use across similar RF groups. Then different channels may be assigned to the first service end point and the second service end point.
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42.发明申请公开(公告)号：US20210195562A1
公开(公告)日：2021-06-24
申请号：US16726554
申请日：2019-12-24
Applicant: Cisco Technology, Inc.
Inventor： Pooya Monajemi , Vishal Satyendra Desai , Benjamin Jacob Cizdziel , Santosh Babaji Kulkarni , Young Il Choi
IPC: H04W72/04 , H04W48/16 , H04B17/318
Abstract: In dense Wireless Local Area Network (WLAN) deployments, Access Points (APs) in other Extended Service Sets (ESSs) can be hidden (a first AP does not receive signals from a third AP). However, these APs in other ESSs can still interfere with communications between the third AP and the devices communicating with the first AP. To improve service to that device in that situation, the first AP needs information about the third AP in the first AP's decision making processes. In these situations, a second AP, in contact with the third AP, can share information about the third AP with the first AP so that the first AP can avoid colliding with the third AP.
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公开(公告)号：US10904851B1
公开(公告)日：2021-01-26
申请号：US16748565
申请日：2020-01-21
Applicant: Cisco Technology, Inc.
Abstract: A system may be configured to identify, from among a plurality of access points in an area in communication with a network, a plurality of edge access points associated with an edge of the area. In addition, the system may also be configured to determine first edge location-related data for a first edge access point and first interior location-related data for a first interior access point. Determining the first interior location-related data for the first interior access point includes exchanging ranging data indicative of a first relative distance between the first edge access point and the first interior access point. The ranging data may be based at least in part on fine timing measurements and/or time-of-flight-based measurements. Determining the first interior location-related data for the first interior access point may also include communicating the first edge location-related data from the first edge access point to the first interior access point.
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公开(公告)号：US10791524B2
公开(公告)日：2020-09-29
申请号：US16255955
申请日：2019-01-24
Applicant: Cisco Technology, Inc.
Inventor： Vishal Satyendra Desai , Pooya Monajemi , Santosh Babaji Kulkarni , Young Il Choi
Abstract: Presented herein are techniques for using mobile client density to compensate for variations in path loss between neighboring access points. In one example, a device (e.g., wireless controller) determines one or more mobile client density variation trends in a wireless network location and determines one or more neighbor message power variation trends between at least first and second access points within the wireless network location. The device generates one or more correlation bias factors using the mobile client density variation trends and the neighbor message power variation trends. The device determines a path loss between at least the first and second access points based on the correlation bias factor and data associated with neighbor messages sent between the first and second access points.
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45.发明申请公开(公告)号：US20200288323A1
公开(公告)日：2020-09-10
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
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.
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Patent Agency Ranking
公开(公告)号：US20200287633A1
公开(公告)日：2020-09-10
申请号：US16292962
申请日：2019-03-05
Applicant: Cisco Technology, Inc.
IPC: 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：US10609574B2
公开(公告)日：2020-03-31
申请号：US16001212
申请日：2018-06-06
Applicant: Cisco Technology, Inc.
Inventor： Vishal S. Desai , Pooya Monajemi
Abstract: Techniques for a seamless wireless local area network upgrade using dynamic coverage estimations are described. In one embodiment, a method includes determining, at a network controller of a wireless local area network (WLAN) comprising a plurality of wireless access points, a first set of wireless access points that provide redundant wireless connectivity to client devices. The method also includes determining, at the network controller, a second set of wireless access points among a remaining group of wireless access points excluding the first set of wireless access points that provide redundant wireless connectivity to client devices. The method includes performing a first upgrade of software associated with each wireless access point in the first set of wireless access points. Upon completion of the first upgrade, the method includes performing a second upgrade of software associated with each wireless access point in the second set of wireless access points.
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公开(公告)号：US10412617B2
公开(公告)日：2019-09-10
申请号：US15791438
申请日：2017-10-24
Applicant: Cisco Technology, Inc.
Inventor： Santosh Ghanshyam Pandey , Pooya Monajemi , Vishal Desai
Abstract: In one embodiment, a basic service set (BSS) color assignment apparatus includes a processor, and a memory to store data used by the processor, wherein the processor is operative to calculate, for each one BSS color of a plurality of BSS colors, a BSS color assignment metric at least based on use of the one BSS color in at least one neighboring BSS neighboring a BSS of an access point in an infrastructure wireless local area network (WLAN), yielding a plurality of BSS color assignment metrics for the BSS of the access point, select one of the plurality of BSS color assignment metrics associated with an optimal choice BSS color of the plurality of BSS colors for the BSS of the access point and assign the optimal choice BSS color to the BSS of the access point.
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公开(公告)号：US09585124B2
公开(公告)日：2017-02-28
申请号：US14088483
申请日：2013-11-25
Applicant: Cisco Technology, Inc.
Inventor： Neil R. Diener , Pooya Monajemi , Jim Florwick , Jyoti Raju , John Matthew Swartz , Ahmadreza Hedayat
IPC: H04W72/08 , H04W72/04 , H04W52/24 , H04W52/40 , H04B17/318
CPC classification number: H04W72/04 , H04B17/318 , H04W52/24 , H04W52/242 , H04W52/245 , H04W52/40
Abstract: Presented herein are techniques for using uplink transmissions from devices (e.g., wireless tags, clients, etc.) to determine a path loss between neighboring access points. In one example, a wireless controller obtains receive signal strength information of uplink transmissions received at neighboring access points in a wireless network. The wireless controller determines an effective path loss between the neighboring access points based on the receive signal strength information for the uplink transmissions received at the neighboring access points. The wireless controller also performs radio resource management operations in the wireless network using the effective path loss determined based on the uplink transmissions received at the neighboring access points.
Abstract translation: 这里呈现的是用于使用来自设备（例如，无线标签，客户机等）的上行链路传输来确定相邻接入点之间的路径损耗的技术。 在一个示例中，无线控制器获得在无线网络中在相邻接入点处接收的上行链路传输的接收信号强度信息。 无线控制器基于在相邻接入点处接收的上行链路传输的接收信号强度信息来确定相邻接入点之间的有效路径损耗。 无线控制器还使用基于在相邻接入点处接收到的上行链路传输确定的有效路径损耗来在无线网络中执行无线电资源管理操作。
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50.发明授权公开(公告)号：US12231963B2
公开(公告)日：2025-02-18
申请号：US17820917
申请日：2022-08-19
Applicant: Cisco Technology, Inc.
Inventor： Brian D. Hart , Pooya Monajemi , Malcolm Muir Smith
Abstract: Time Sensitive Networking (TSN) Quality of Service (QoS) in overlapped administrative domains may be provided. A first Access Point (AP) may detect at least a second AP in a Co-Channel Interference (CCI) range. A micro-transaction auction between the first AP and at least the second AP may be established, and the first AP may provide compensation to second AP to acquire an agreement, from the second AP, to forgo transmitting during an upcoming service period. Next, the first AP may schedule transmissions for the service period and then transmit in the service period without interference from the second AP.
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