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公开(公告)号:US20210352662A1
公开(公告)日:2021-11-11
申请号:US16868312
申请日:2020-05-06
Applicant: Cisco Technology, Inc.
Inventor: Akram I. SHERIFF , Pascal THUBERT , Jerome HENRY , Robert E. BARTON
Abstract: Providing for time sensitive networking (TSN) traffic in high density deployments is described. An access point (AP) is a high density deployment receives a message identifying another AP as a TSN neighbor and also detects a TSN device within an area covered by the APs. This arrangement may cause traffic interruptions for the TSN traffic between the TSN device and the APs. In order to prevent disruption in TSN traffic, a TSN time slot and a resource unit (RU) is determined for each of the APs, and the TSN traffic is communicated between the various devices in network according to the determined TSN time slot and RU.
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公开(公告)号:US20210282109A1
公开(公告)日:2021-09-09
申请号:US17146362
申请日:2021-01-11
Applicant: Cisco Technology, Inc.
Inventor: Jerome HENRY , Akram I. SHERIFF , Vishal S. DESAI , Santosh Ramrao PATIL , Robert E. BARTON
Abstract: Techniques for improved wireless ranging are provided. A first communication from a first client device is received at a first network device. A predefined minimum distance is determined for the first access point, where the predefined minimum distance corresponds to a distance at which the vertical location of the first network device causes time of flight ranging techniques to result in inaccurate location estimations. A first distance of the first client device from the first network device is estimated. Upon determining that the first distance of the first client device is below the predefined minimum distance, ToF ranging requests from the first client device are declined.
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公开(公告)号:US20220132365A1
公开(公告)日:2022-04-28
申请号:US17077865
申请日:2020-10-22
Applicant: Cisco Technology, Inc.
Inventor: Robert E. BARTON , Jerome HENRY , Akram I. SHERIFF , Thomas SZIGETI
Abstract: Techniques and apparatus for managing congestion in a wireless network are provided. One technique includes receiving one or more buffer status reports (BSRs) from one or more client stations. Each BSR indicates an amount of traffic in a transmit queue of the client station. An allocation of resource units (RUs) for the one or more client stations is determined, based on at least a type of traffic in each transmit queue of the one or more client stations, upon a determination that there is congestion on an uplink wireless channel shared by the one or more client stations. A frame that includes an indication of the allocation of RUs for the one or more client stations is generated. The frame is transmitted to the one or more client stations.
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公开(公告)号:US20210364597A1
公开(公告)日:2021-11-25
申请号:US16880797
申请日:2020-05-21
Applicant: Cisco Technology, Inc.
Inventor: Akram I. SHERIFF , Jerome HENRY , Robert E. BARTON , Pooya MONAJEMI
Abstract: Embodiments for securing fine timing measurement (FTM) communications are described. FTM communications include FTM frames sent and received from an initiating station (ISTA) and a responding station (RSTA). The RSTA records a plurality of parameters associated with the FTM frames and uses the plurality of parameters to learn and identify a device profile for the ISTA. The device profile is used to determine a behavior filter for the FTM from the ISTA and the RSTA filters FTM traffic according to the behavior filter to prevent malicious attacks in the FTM communications.
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公开(公告)号:US20230007976A1
公开(公告)日:2023-01-12
申请号:US17368676
申请日:2021-07-06
Applicant: Cisco Technology, Inc.
Inventor: Akram I. SHERIFF , Jerome HENRY , Robert E. BARTON , Matthew A. SILVERMAN
Abstract: A method includes estimating distances between a user device and an access point based on a series of FTM ranging bursts exchanged between the user device and the access point. The method also includes calculating a variance of the estimated distances and in response to determining that the variance exceeds a threshold, instructing the user device to perform an action that reduces the variance. Other embodiments include a device that performs this method.
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公开(公告)号:US20220417925A1
公开(公告)日:2022-12-29
申请号:US17929294
申请日:2022-09-01
Applicant: Cisco Technology, Inc.
Inventor: Akram I. SHERIFF , Pascal THUBERT , Jerome HENRY , Robert E. BARTON
Abstract: Providing for time sensitive networking (TSN) traffic in high density deployments is described. An access point (AP) is a high density deployment receives a message identifying another AP as a TSN neighbor and also detects a TSN device within an area covered by the APs. This arrangement may cause traffic interruptions for the TSN traffic between the TSN device and the APs. In order to prevent disruption in TSN traffic, a TSN time slot and a resource unit (RU) is determined for each of the APs, and the TSN traffic is communicated between the various devices in network according to the determined TSN time slot and RU.
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公开(公告)号:US20220272657A1
公开(公告)日:2022-08-25
申请号:US17663587
申请日:2022-05-16
Applicant: Cisco Technology, Inc.
Inventor: Shankar RAMANATHAN , Akram I. SHERIFF , Jerome HENRY
IPC: H04W64/00 , H04W4/029 , H04B17/318 , H04W24/10
Abstract: Techniques for access point (AP) based location computation are disclosed. A target wireless AP, communicatively coupled to a wireless station (STA), is identified. One or more location buddy APs, relating to the target AP, are identified based on the physical locations of the location buddy APs and the target AP. It is determined that a first location buddy AP, of the one or more location buddy APs, is communicatively coupled to the STA, and in response a location of the STA is determined using the target AP.
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公开(公告)号:US20240015807A1
公开(公告)日:2024-01-11
申请号:US18176999
申请日:2023-03-01
Applicant: Cisco Technology, Inc.
Inventor: Vinay SAINI , Jerome HENRY , Akram I. SHERIFF , Nagendra Kumar NAINAR , Robert E. BARTON
Abstract: Disclosed are a system and a method for selecting an additional radio link from a second access point after a connection with a first access point has been established. The first and second access points cooperate with each other by sharing information about performance and available resources. They communicate this information to a multi-link non-AP MLD device requesting the additional radio link so that the non-AP MLD can make a selection that matches the needs of its request. Information about performance includes throughput, a delay between access points, and a delay between access points and a gateway connected to the access points.
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公开(公告)号:US20210392610A1
公开(公告)日:2021-12-16
申请号:US16900740
申请日:2020-06-12
Applicant: Cisco Technology, Inc.
Inventor: Shankar RAMANATHAN , Akram I. SHERIFF , Jerome HENRY
IPC: H04W64/00 , H04W24/10 , H04B17/318 , H04W4/029
Abstract: Techniques for access point (AP) based location computation are disclosed. A target wireless AP, communicatively coupled to a wireless station (STA), is identified. One or more location buddy APs, relating to the target AP, are identified based on the physical locations of the location buddy APs and the target AP. It is determined that a first location buddy AP, of the one or more location buddy APs, is communicatively coupled to the STA, and in response a location of the STA is determined using the target AP.
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公开(公告)号:US20210392568A1
公开(公告)日:2021-12-16
申请号:US16902038
申请日:2020-06-15
Applicant: Cisco Technology, Inc.
Inventor: Jerome HENRY , Akram I. SHERIFF , Sudhir K. JAIN , Pooya MONAJEMI
Abstract: Aspects described herein include a method comprising receiving an initial Fine Timing Measurement (FTM) request from an Initiating Station (ISTA), determining a priority classification of the ISTA relative to other ISTAs, and determining, based at least partly on the priority classification, whether to accept the initial FTM request.
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